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  • 1.
    Anderson, Malin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Boström, Marja
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Pfaller, Kristian
    Glueckert, Rudolf
    Schrott-Fischer, Annelies
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Rask-Andersen, Helge
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Structure and locomotion of adult in vitro regenerated spiral ganglion growth cones: a study using video microscopy and SEM2006In: Hearing Research, ISSN 0378-5955, E-ISSN 1878-5891, Vol. 215, no 1-2, p. 97-107Article in journal (Refereed)
    Abstract [en]

    Neuronal development and neurite regeneration depends on the locomotion and navigation of nerve growth cones (GCs). There are few detailed descriptions of the GC function and structure in the adult auditory system. In this study, GCs of adult dissociated and cultured spiral ganglion (SG) neurons were analyzed in vitro utilizing combined high resolution scanning electron microscopy (SEM) and time lapse video microscopy (TLVM). Axon kinesis was assessed on planar substratum with growth factors BDNF, NT-3 and GDNF. At the nano-scale level, lamellipodial abdomen of the expanding GC was found to be decorated with short surface specializations, which at TLVM were considered to be related to their crawling capacity. Filopodia were devoid of these surface structures, supporting its generally described sensory role. Microspikes appearing on lamellipodia and axons, showed circular adhesions, which at TLVM were found to provide anchorage of the navigating and turning axon. Neurons and GCs expressed the DCC-receptor for the guidance molecule netrin-1. Asymmetric ligand-based stimulation initiated turning responses suggest that this attractant cue influences steering of GC in adult regenerating auditory neurites. Hopefully, these findings may be used for ensuing tentative navigation of spiral ganglion neurons to induce regenerative processes in the human ear.

  • 2.
    Andersson, Gerhard
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
    Sandberg, Susanne
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
    Rydell, Ann Margret
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Social competence and behaviour problems in burned children2003In: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 29, no 1, p. 25-30Article in journal (Refereed)
    Abstract [en]

    The aim of this study was to collect follow-up data on social competence and behavioural problems in a sample of Swedish burned children and to compare the results with normative data from a reference group of children comparable in age, socio-economic status and gender. Parents of 44 children (55% response rate) aged 7-12 years were asked to complete a questionnaire booklet including the Children's Behaviour Questionnaire (CBQ) and the Social Competence Inventory (SCI). Data from the children's teachers were also collected for 20 children using the same booklet. In addition, data on TBSA, localisation of injury, and other background factors were collected. Results showed that the burned children were rated by their parents as showing lesser degrees of social initiative and more externalising problems and concentration problems compared with the control group. Teachers rated the burn injured children as having less prosocial orientation, more externalising problems, and more concentration problems. No clear effects were found for gender and characteristics of the burn injury. Results on the Social Competence Inventory were associated with scores on the Children's Behaviour Questionnaire.The findings are consistent with previous research in that the differences found were relatively small. However, they do call for attention to the possible adverse effects of growing up with a burn injury, but also to the possible pre-morbid characteristics that may be related to the injury.

  • 3. Björkenstam, Charlotte
    et al.
    Björkenstam, Emma
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Excess cause-specific mortality in out-patients with personality disorder2015In: British Journal of Psychiatry Open, ISSN 2056-4724, Vol. 1, no 1, p. 54-55Article in journal (Refereed)
    Abstract [en]

    Personality disorders (PDs) are associated with increased overall mortality. In patients hospitalised with a principal diagnosis of PD, this is observed for all clusters and for natural as well as unnatural causes of death. Data from Swedish nationwide registers were used to assess whether this was also true for the majority of patients diagnosed with PDs not severe enough to lead to hospitalisation. There was an increased mortality in all clusters, and for natural as well as unnatural death, also in patients treated as out-patients only, although not to the same extent as in those hospitalised.

  • 4.
    Björkenstam, Charlotte
    et al.
    Karolinska Inst, Div Insurance Med, Dept Clin Neurosci, Stockholm, Sweden.;Univ Calif Los Angeles, Dept Epidemiol, Fielding Sch Publ Hlth, Los Angeles, CA 90095 USA.;Stockholm Univ, Dept Sociol, Stockholm, Sweden..
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Berlin, Marie
    Stockholm Univ, Dept Sociol, Stockholm, Sweden.;Natl Board Hlth & Welf, Dept Stat Monitoring & Evaluat, Stockholm, Sweden..
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Björkenstam, Emma
    Karolinska Inst, Div Social Med, Dept Publ Hlth Sci, Stockholm, Sweden.;Univ Calif Los Angeles, Fielding Sch Publ Hlth, Dept Community Hlth Sci, Los Angeles, CA USA.;Univ Calif Los Angeles, Calif Ctr Populat Res, Los Angeles, CA USA..
    Suicide risk and suicide method in patients with personality disorders2016In: Journal of Psychiatric Research, ISSN 0022-3956, E-ISSN 1879-1379, Vol. 83, p. 29-36Article in journal (Refereed)
    Abstract [en]

    Objective: The influence of psychopathology on suicide method has revealed different distributions among different psychiatric disorders. However, evidence is still scarce. We hypothesized that having a diagnosis of personality disorder (PD) affect the suicide method, and that different PD clusters would influence the suicide method in different ways. In addition, we hypothesized that the presence of psychiatric and somatic co-morbidity also affects the suicide method. Method: We examined 25,217 individuals aged 15-64 who had been hospitalized in Sweden with a main diagnosis of PD the years 1987-2013 (N = 25,217). The patients were followed from the date of first discharge until death or until the end of the follow-up period, i.e. December 31, 2013, for a total of 323,508.8 person-years, with a mean follow up time of 11.7 years. The SMR, i.e. the ratio between the observed number of suicides and the expected number of suicides, was used as a measure of risk. Results: Overall PD, different PD-clusters, and comorbidity influenced the suicide method. Hanging evidenced highest SMR in female PD patients (SMR 34.2 (95% CI: 29.3-39.8)), as compared to non-PD patients and jumping among male PD patients (SMR 24.8 (95% CI: 18.3-33.6)), as compared to non PD-patients. Furthermore, the elevated suicide risk was related to both psychiatric and somatic comorbidity. Conclusion: The increased suicide risk was unevenly distributed with respect to suicide method and type of PD. However, these differences were only moderate and greatly overshadowed by the overall excess suicide risk in having PD. Any attempt from society to decrease the suicide rate in persons with PD must take these characteristics into account.

  • 5. Björkenstam, Emma
    et al.
    Björkenstam, Charlotte
    Holm, Herman
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Excess cause-specific mortality in in-patient-treated individuals with personality disorder: 25-year nationwide population-based study.2015In: British Journal of Psychiatry, ISSN 0007-1250, E-ISSN 1472-1465, Vol. 207, no 4, p. 339-345Article in journal (Refereed)
    Abstract [en]

    BackgroundAlthough personality disorders are associated with increased overall mortality, less is known about cause of death and personality type.AimsTo determine causes of mortality in ICD personality disorders.MethodBased on data from Swedish nationwide registers, individuals admitted to hospital with a primary diagnosis of personality disorder between 1987 and 2011 were followed with respect to mortality until 31 December 2011. Standardised mortality ratios (SMRs) with 95% confidence intervals and underlying causes of death were calculated.ResultsAll-cause SMRs were increased, overall and in all clusters, for natural as well as unnatural causes of death. The overall SMR was 6.1 in women and 5.0 in men, as high as previously reported for anorexia nervosa, with higher rates in cluster B and mixed/other personality disorders. The SMR for suicide was 34.5 in women and 16.0 in men for cluster B disorders. Somatic and psychiatric comorbidity increased SMRs.ConclusionsThe SMR was substantially increased for all personality disorder clusters. Thus, there was an increased premature mortality risk for all personality disorders, irrespective of category.

  • 6.
    Bäckström, Josefin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Willebrand, Mimmie
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Prediction of psychological symptoms in family members of patients with burns 1 year after injury2013In: Journal of Advanced Nursing, ISSN 0309-2402, E-ISSN 1365-2648, Vol. 69, no 2, p. 384-393Article in journal (Refereed)
    Abstract [en]

    Aim

    To report a study of predictors of psychological symptoms in family members of patients with burns.

    Background

    Family members are important as a source of social support for patients undergoing prolonged rehabilitation. Little is known about psychological symptoms of family members of patients with burns, especially in the long term.

    Design

    The design of the study was prospective and longitudinal.

    Methods

    Forty-four family members of adult patients treated in a burn centre between 2000-2007 completed questionnaires during care and at 3, 6, and 12 months after injury. Psychological symptoms were assessed with the Hospital Anxiety and Depression Scale. Predictors for anxiety and depression were explored in regression analyses.

    Results

    The mean scores indicated normal to mild symptoms in general. Moderate and severe symptom levels during care and at 12 months were demonstrated on the anxiety subscale by 15/44 and 5/39, respectively, and on the depression subscale by 5/44 and 0/39 of the family members, respectively. In the final regression models, the primary predictor was psychological symptoms at the previous assessment. Other predictors were previous life events, age, and the coping strategy avoidance.

    Conclusion

    Family members of patients with burns demonstrate normal to mild levels of psychological symptoms that decrease over time. One-third show moderate to severe anxiety symptoms during care and may benefit from counselling. Previous symptoms predict later symptoms, indicating that screening with a validated instrument is useful. The results provide guidance for nurses in assessing and planning adequate interventions for family members.

  • 7.
    Bäckström, Josefin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Öster, Caisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Gerdin, Bengt
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Willebrand, Mimmie
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Health-related quality of life in family members of patients with burns2014In: Journal of Burn Care & Research, ISSN 1559-047X, E-ISSN 1559-0488, Vol. 35, no 3, p. 243-250Article in journal (Refereed)
    Abstract [en]

    A severe burn not only affects the patients, but may also have a great impact on the lives of family members. It is known that family members of patients with burns experience psychological distress, but health-related quality of life (HRQoL) has not been studied in this group. The aim was to study predictors of HRQoL in family members of patients with burns. Forty-four family members of adult patients treated in a burn center, between 2000 and 2007, completed questionnaires during care, and at 3, 6, and 12 months after injury. HRQoL was assessed with the EuroQol 5D (EQ-5D), which consists of the dimensions: mobility, self-care, usual activities, pain, and anxiety/depression. The questionnaire generates an EQ-5D index and a visual analog scale (VAS) score. Overall, the EQ-5D index was similar to that of the general population. A slight improvement in HRQoL was found in the VAS scores and in the anxiety/depression dimension over time. In regression models, HRQoL was primarily predicted by earlier life events, symptoms of post-traumatic stress disorder, and HRQoL, assessed during the patients’ hospitalization. In summary, HRQoL assessed with VAS scores increased slightly during the first year postburn, and early screening for life events and psychological symptoms, and HRQoL might be useful in identifying family members in need of support.

  • 8.
    Dyster-Aas, Johan
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
    Kildal, Morten
    Willebrand, Mimmie
    Gerdin, Bengt
    Ekselius, Lisa
    Work status and burn specific health after work-related burn injury2004In: Burns, ISSN 0305-4179, Vol. 30, no 8, p. 839-842Article in journal (Refereed)
  • 9.
    Dyster-Aas, Johan
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
    Willebrand, Mimmie
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Wikehult, Björn
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Major depression and posttraumatic stress disorder symptoms following severe burn injury in relation to lifetime psychiatric morbidity2008In: Journal of Trauma - Injury, Infection and Critical Care, ISSN 0022-5282, Vol. 64, no 5, p. 1349-1356Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Psychiatric history has been suggested to have an impact on long-term adjustment in burn survivors. A rigorous, prospective, longitudinal approach was used to study psychiatric history in a population-based burn sample and its impact on symptomatology of depression and posttraumatic stress disorder (PTSD) at a 12-month follow-up. METHODS: Seventy-three consecutive patients admitted to the Uppsala Burn Unit were assessed with the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition for psychiatric disorders, of whom 64 were also assessed after 12 months. RESULTS: Forty-eight patients (66%) presented with at least one lifetime psychiatric diagnosis; major depression (41%), alcohol abuse or dependence (32%), simple phobia (16%), and panic disorder (16%) were most prevalent. At 12-months postburn, 10 patients (16%) met criteria for major depression, 6 (9%) for PTSD, and 11 (17%) for subsyndromal PTSD. Patients with lifetime anxiety disorder and with lifetime psychiatric comorbidity were more likely to be depressed at 12 months, whereas those with lifetime affective disorder, substance use disorder and psychiatric comorbidity were more likely to have symptoms of PTSD. CONCLUSIONS: Two-thirds of burn survivors exhibit a history of lifetime psychiatric disorders. Those with a psychiatric history have a higher risk of postburn psychiatric problems.

  • 10.
    Ekeblad, Frida
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Öster, Caisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Impact of personality disorders on health-related quality of life one year after burn injury2015In: Disability and Rehabilitation, ISSN 0963-8288, E-ISSN 1464-5165, Vol. 37, no 6, p. 534-540Article in journal (Refereed)
    Abstract [en]

    Purpose: Personality disorders (PDs) are associated with significant distress, disability, and cause great difficulties in life. PDs have been suggested to influence adaptation after major burns, but the potential relationship has not been fully elucidated. This study aimed to describe the prevalence of PDs in 107 patients with major burn injury, and to identify the impact of PDs on perceived patient outcome assessed as health-related quality of life (HRQoL) one year after burn. Methods: One burn-specific instrument (Burn Specific Health Scale-Brief (BSHS-B)) and two generic instruments (EuroQol Five Dimensions and Short Form 36 Health Survey) were used, and Psychiatric Axis I and II disorders were assessed one year post burn. Results: This study identified an above normal prevalence of PDs among individuals afflicted by burn, and participants with PD had a significantly larger lifetime burden of Axis I disorders compared to participants without PD. Participants with PDs scored significantly lower than those without PD in the BSHS-B domain Skin involvement, and the effect of having a PD was related to the subscale Treatment regimens. There was no relationship between the presence of PD and generic HRQoL. Conclusions: An implication of these observations is that special rehabilitation efforts including more tailored interventions must be offered to these patients to ensure that the obstacles they perceive to caring for themselves in this respect are eliminated.

  • 11.
    Gauffin, Emelie
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Öster, Caisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Prevalence and prediction of prolonged pruritus after severe burns2015In: Journal of Burn Care & Research, ISSN 1559-047X, E-ISSN 1559-0488, Vol. 36, no 3, p. 405-413Article in journal (Refereed)
    Abstract [en]

    Years after injury, pruritus is a common and severe problem for many burn patients. However, its characteristics and consequences are often only partially described. The authors therefore performed a prospective detailed examination of burn- and individual-related factors and considered those in relation to pruritus severity. Sixty-seven consecutive burn patients were assessed during acute care, and at 3 and 12 months postburn regarding preburn psychiatric disorders, health-related quality of life, post traumatic stress disorder, and personality traits. Postburn pruritus was subsequently assessed 2 to 7 years postburn using the Questionnaire for Pruritus Assessment. Fifty-one individuals, 76% of the participants, reported burn pruritus any time after the burn. Thirty-three individuals, 49% of the participants, reported ongoing pruritus the last 2 months. Information on the characteristics of pruritus was obtained from 32 of these individuals. Most perceived pruritus as bothersome or annoying and as present every day, 16 (50 %) were considered to have severe pruritus, and 11 (34 %) scratched themselves to the point of bleeding. In logistic regressions, this was independently related to TBSA full-thickness burn and health-related quality of life at 3 months, and to TBSA full thickness burn and the personality trait impulsiveness, respectively. About half of the previous burn patients experienced ongoing pruritus on an average of 4.5 years after injury, and half of them had severe pruritus. Scratching oneself to the point of bleeding is linked both to a certain personality and to pruritus. It is suspected that many patients are left without access to the best available treatment.

  • 12.
    Gauffin, Emelie
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital. Linkoping Univ, Burn Ctr, Dept Hand Plast & Intens, S-58185 Linkoping, Sweden..
    Öster, Caisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Sjöberg, Folke
    Linkoping Univ, Burn Ctr, Dept Hand Plast & Intens, S-58185 Linkoping, Sweden..
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Ekselius, Lisa
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Psychiatry, University Hospital.
    Health-related quality of life (EQ-5D) early after injury predicts long-term pain after burn2016In: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 42, no 8, p. 1781-1788Article in journal (Refereed)
    Abstract [en]

    Background: Chronic pain after burn can have severe physical and psychological effects on former patients years after the initial injury. Although the issue of pain after burn has gained increased attention over the past years, prospective, longitudinal studies are scarce. Our aim was to prospectively investigate consecutive burn patients for pain severity over time and to evaluate the prevalence and characteristics of post-burn pain to 2-7 years after the burn. As an additional aim, the effects of burn and individual-related factors, especially health related Quality of Life (HRQoL), were investigated.

    Method: Sixty-seven consecutive burn patients were assessed during acute care at 3, 6, 12 and 24 months, as well as at 2-7 years post-burn. HRQoL, symptoms of post-traumatic stress disorder (PTSD) and other psychiatric disorders were investigated. During the interviews that took place 2-7 years after the injury (mean 4.6 1.9 years), current chronic post-burn pain was assessed using the Brief Pain Inventory-Short Form (BPI-SF).

    Results: One-third of the patients still reported pain 2-7 years after the injury. Pain severity and interference with daily life were mainly mild to moderate though they were found to be associated with significantly lower HRQoL. Chronic pain after bum was associated with both burn- and individual-related factors. In logistic regression analysis HRQoL at 3 and 12 months and symptoms of PTSD at 12 months were independent factors in predicting chronic pain after burn.

    Conclusion: Pain after burn becomes a chronic burden for many former burn patients and decreases HRQoL. A novel finding in this study was that HRQoL assessed early after burn was a predictor for the development of chronic pain. This finding may help to predict future pain problems and serve as an indicator for pain preventive measures.

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  • 13.
    Gedeborg, R
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Helikopterlandningsplatser vid mellansvenska sjukhus. Endast en landningsplats av 27 fick godkänt.1995In: Läkartidningen, Vol. 92, p. 3477-Article in journal (Other academic)
  • 14.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Early management of severely burned patients1996Chapter in book (Other academic)
  • 15.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    New traumatology education will be introduced in Sweden in 19961995In: Läkartidningen, Vol. 92, p. 2213-Article in journal (Other academic)
  • 16.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Swedish classification of cranial injuries needs to be changed1996In: Läkartidningen, Vol. 93, p. 675-Article in journal (Other academic)
  • 17.
    Gerdin, Bengt
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Haglund, Ulf
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Upper Abdominal Surgery.
    Nilsson, Olle
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Orthopaedics.
    Persson, L
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Wiklund, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Anaesthesiology and Intensive Care.
    Classification, prioritization and distribution of responsibility. Cooperation of specialties for an optimal trauma care1996In: Läkartidningen, Vol. 93, p. 2656-Article in journal (Other academic)
  • 18.
    Gerdin, Bengt
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Haglund, Ulf
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Upper Abdominal Surgery.
    Nilsson, Olle
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Persson, L
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
    Wiklund, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Anaesthesiology and Intensive Care.
    Specialistsamverkan vid optimal traumavård. Klassning, prioritering och ansvarsfödelning1996In: Läkartidningen, Vol. 93, p. 2656-Article in journal (Other academic)
  • 19. Gerdin, Bengt
    et al.
    Hällgren, R
    Dynamic role of hyaluronan (HYA) in connective tissue activation and inflammation.1997In: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 242, no 1, p. 49-55Article in journal (Refereed)
    Abstract [en]

    An increased tissue accumulation of HYA occurs in several human and experimental inflammatory conditions. Such is the case in sarcoidosis, idiopathic pulmonary fibrosis and farmer's lung in man, and experimental bleomycin-induced lung damage in rats. Graft rejection in man and rats, experimental myocarditis in mice and myocardial infarction in rats follow the same pattern. Increased amounts of HYA also appear in gut luminal perfusion fluid in human inflammatory bowel disease. A transient accumulation of HYA is seen in wound healing, which is more sustained in fetuses. An increased accumulation of water and presentation of ligands for receptors on inflammatory cells are two consequences of the HYA accumulation.

  • 20. Gerdin, Bengt
    et al.
    Sjoberg, Folke
    Professor Gosta Arturson (1927-2013)2013In: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 39, no 8, p. 1654-1655Article in journal (Refereed)
  • 21.
    Gerdin, Bengt
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Skoog, Valdemar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Skoog, Valdemar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Is plastic surgery to be sacrified? Prioritization is affected by a distorted picture1996In: Läkartidningen, Vol. 93, p. 3053-Article in journal (Other academic)
  • 22. Gerdin, Bengt
    et al.
    Wanders, A
    Tufveson, G
    Rat cardiac allografts protected with cyclosporin A are rejected in the presence of LS-2616 (Linomide).1989In: Transplantation Proceedings, ISSN 0041-1345, E-ISSN 1873-2623, Vol. 21, no 1 Pt 1, p. 853-5Article in journal (Refereed)
  • 23.
    Gerdin, Bengt
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Wanders, A
    Tufveson, G
    Rat cardiac allografts protected with cyclosporin A are rejected in thepresence of LS-2616 (Linomide).1989In: Transplant Proc, Vol. 21, p. 853-Article in journal (Refereed)
  • 24. Hagberg, L
    et al.
    Tengblad, A
    Gerdin, Bengt
    Hyaluronic acid in flexor tendon sheath fluid after sheath reconstructions in rabbits. A comparison between tendon sheath transplantation and conventional two stage procedures.1991In: Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery, ISSN 0284-4311, E-ISSN 1651-2073, Vol. 25, no 2, p. 103-7Article in journal (Refereed)
    Abstract [en]

    Because the synovial environment has been suggested to be important in limiting the number of postoperative adhesions after flexor tendon surgery, and a high concentration of hyaluronic acid is a characteristic feature of synovial fluid, we have examined the hyaluronic acid concentrations in fluid collected from different kinds of reconstructed flexor tendon sheaths in rabbits. The hyaluronic acid concentration in normal rabbit flexor tendon sheaths was similar to that in normal human sheath and joint fluid. Rabbit tendon sheaths restored by autologous sheath grafts and partial pseudosheaths contained similar or somewhat lower hyaluronic acid concentrations, whereas in complete pseudosheaths the concentrations were considerably lower. The data suggest that tendon sheath reconstructions should consist at least partly of synovial membrane so that they are as similar as possible to normal synovial membrane.

  • 25.
    Hakelius, Malin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Koskela, Anita
    Ivarsson, Mikael
    Grenman, Reidar
    Rubin, Kristofer
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Nowinski, Daniel
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Keratinocytes and Head and Neck Squamous Cell Carcinoma Cells Regulate Urokinase-type Plasminogen Activator and Plasminogen Activator Inhibitor-1 in Fibroblasts2013In: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 33, no 8, p. 3113-3118Article in journal (Refereed)
    Abstract [en]

    Background: To investigate possible differences in the effects of soluble factors from oral squamous cell carcinoma (SCC) cells (UT-SCC-87) and normal oral keratinocytes (NOK) on fibroblast expression of genes involved in tumor stroma turnover. Materials and Methods: Transwell co-cultures with fibroblasts in collagen gels, and SCC cells or NOK in inserts were carried out. Fibroblast gene expression was measured with real-time polymerase chain reaction (PCR). Results: The expression of urokinase-type plasminogen activator (uPA) and plasminogen activator inhibitor-1 (PAI-1) was up-regulated in co-cultures with SCC cells but not with NOK. In contrast, both SCC cells and NOK regulated matrix metalloproteinase-1 (MMP1) and -3, and tissue inhibitor of metalloproteinases-2 (TIMP2) and -3 to a similar extent, while MMP2 and TIMP1 were largely unaffected. Interleukin 1 alpha (IL1 alpha) up-regulated both MMP1 and MMP3 and down-regulated PAI-1, TIMP2 and -3. Conclusion: SCC and NOK regulate fibroblast expression of genes involved in tumor stroma turnover differentially in vitro. These observations may contribute to a better understanding of the mechanisms behind extracellular matrix turnover in tumors.

  • 26.
    Hakelius, Malin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Koskela, Anita
    Reyhani, Vahid
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Ivarsson, Mikael
    Grenman, Reidar
    Rubin, Kristofer
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Nowinski, Daniel
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Interleukin-1-mediated effects of normal oral keratinocytes and head and neck squamous carcinoma cells on extracellular matrix related gene expression in fibroblasts2012In: Oral Oncology, ISSN 1368-8375, E-ISSN 1879-0593, Vol. 48, no 12, p. 1236-1241Article in journal (Refereed)
    Abstract [en]

    Objectives: The composition of tumor stroma and the activity of tumor associated fibroblasts are important for tumor growth. Interactions between carcinoma cells and fibroblasts regulate the turnover of extracellular matrix (ECM). Here, the in vitro effects of oral squamous cell carcinoma (SCC) cells (UT-SCC-30 and UT-SCC-87) on fibroblast expression of genes for ECM components and connective tissue growth factor (CTGF/CCN2), were compared to those of normal oral keratinocytes (NOK). Materials and Methods: Cocultures with fibroblasts in collagen gels and keratinocytes with the two cell types separated by a semi permeable membrane were used, and relative gene expression was measured with real-time PCR. Results: All investigated genes were regulated by NOK and the SCCs. The downregulation of pro-collagens alpha 1(I) and alpha 1(III) was more pronounced in cocultures with NOK, while the expression of CCN2 and fibronectin was downregulated by both NOK and the SCCs to a similar extent. UT-SCC-87, but not UT-SCC-30, secreted significantly more IL-1 alpha than NOK. A recombinant interleukin-1 receptor antagonist reversed many of the observed effects on fibroblast gene expression suggesting involvement of IL-1 in cocultures with NOK as well as with SCCs. Conclusion: The observed differential effects on fibroblast gene expression suggest that NOK are more antifibrotic compared to UT-SCC-30 and UT-SCC-87. These findings may contribute to a better understanding of the mechanisms behind ECM turnover in tumors.

  • 27.
    Hakelius, Malin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Reyhani, Vahid
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Rubin, Kristofer
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Nowinski, Daniel
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Normal oral keratinocytes and head and neck squamous carcinoma cells induce an innate response in fibroblasts2016In: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 36, no 5, p. 2131-2137Article in journal (Other academic)
    Abstract [en]

    Background: Tumor stroma is similar to the connective tissue of chronic inflammation. The extracellular matrix of tumors is formed by cancer-associated fibroblasts that also modulate the inflammatory response. Materials and Methods: We studied the ability of oral keratinocytes (NOK) and oral squamous cell carcinoma cells (SCC) to induce an innate immune response in fibroblasts. Co-cultures with fibroblasts in collagen gels and keratinocytes in inserts were used. Pentraxin 3 (PTX3) was used as an indicator of an innate immune response. Results: SCC and NOK up-regulated fibroblast mRNA expression and protein release of PTX3. mRNA levels were more pronounced in cultures with malignant cells. The induction of PTX3 was abrogated by an interleukin-1 receptor antagonist Conclusion: Keratinocytes have the capacity to induce an interleukin-1-dependent innate immune response by fibroblasts in vitro. This could be important for subsequent fibroblast modulation of the inflammatory reaction in non-malignant and malignant disease processes.

  • 28.
    Hakelius, Malin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Saiepour, Daniel
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Göransson Kultima, Hanna
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cancer Pharmacology and Computational Medicine.
    Rubin, Kristofer
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Gerdin, Bengt
    Nowinski, Daniel
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Differential gene regulation in fibroblasts in coculture with normal oral keratinocytes and head and neck squamous cell carcinoma cellsManuscript (preprint) (Other academic)
  • 29.
    Hansell, Peter
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Comparative Medicine.
    Göransson, Viktoria
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology, Integrative Physiology.
    Maric, Christina
    Alcorn, Daine
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Hallgren, Roger
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
    Hyaluronan in renal medullary water handling1999In: XVth International Congress of Nephrology, Buenos Aires, Argentina, 1999Conference paper (Other academic)
  • 30.
    Hansell, Peter
    et al.
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Medical Cell Biology.
    Göransson, Viktoria
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Medical Cell Biology.
    Odlind, Cecilia
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Medical Cell Biology.
    Gerdin, Bengt
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Surgical Sciences.
    Hallgren, Roger
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Medical Sciences.
    Hyaluronan content in the kidney in different states of body hydration2000In: Kidney International, ISSN 0085-2538, E-ISSN 1523-1755, Vol. 58, no 5, p. 2061-8Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Growing evidence suggests that the interstitial hyaluronan (HA) content is a determinant of the fluid exchange barrier in tissues through its high resistance to water flow. This study addressed the possible involvement of renal papillary HA in water balance regulation. METHODS: In anesthetized rats during different states of renal water handling (euvolemia, water diuresis, antidiuresis), in desert rodents, and in Brattleboro rats (diabetes insipidus) with a hereditary difference in water handling, regional renal HA and water contents were measured. RESULTS: The intrarenal HA distribution is heterogeneous, with 100 times larger amounts in the papilla than in the cortex. Compared with control rats, two hours of water diuresis increased the papillary HA content by 48% and that in the outer medulla by 52%, leaving the cortex unaffected. After 24 hours of water deprivation, papillary HA was decreased by 17%, while outer medullary HA remained unchanged. In gerbils, papillary and outer medullary HA contents were only 25 and 13%, respectively, of those in normal rats, while the cortical content was similar. In Brattleboro rats, the outer medullary HA content was significantly higher (285%) than in the normal rat, while the papillary content was similar. Generally, papillary HA was positively correlated to water content but was inversely related to urine osmolality. CONCLUSIONS: The amount of renal papillary HA changes in response to water balance of the organism. When excess water needs to be excreted, increased papillary interstitial HA could antagonize water reabsorption. The opposite occurs during water conservation. HA may play a role in renal water handling by affecting physicochemical characteristics of the papillary interstitial matrix and influencing the interstitial hydrostatic pressure, thereby determining interstitial water diffusion.

  • 31.
    Hansell, Peter
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology, Integrative Physiology.
    Göransson, Viktoria
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Comparative Medicine.
    Odlind, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Comparative Medicine.
    Maric, Christine
    Alcorn, Daine
    Johnsson, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Hällgren, Roger
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
    CD44 and hyaluronan in renal papillary water handling1999In: 32nd American Society of Nephrology (ASN) meeting, Miami Beach, Florida, USA, 1999Conference paper (Other academic)
  • 32.
    Hellkvist, Josefin
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Tufveson, Gunnar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Transplantation Surgery.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Johnsson, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Characterization of fibroblasts from rejecting tissue: The hyaluronan production is increased2002In: Transplantation, Vol. 7, p. 1672-Article in journal (Refereed)
  • 33.
    Ivarsson, M
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Sundberg, C
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Farroknia, N
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Pertoft, H
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Rubin, K
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Recruitment of type I collagen producing cells from the microvasculature in vitro.1996In: Experimental Cell Research, Vol. 229, p. 336-Article in journal (Refereed)
  • 34.
    Jahnson, S
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Bergstrom, R
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Influence of radiation dose and nutritional restriction on anastsomotic healing in rat small bowel with chronic radiation damage1995In: Surg Res Comm, Vol. 18, p. 53-Article in journal (Refereed)
  • 35.
    Jahnson, S
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Christoffersson, Rolf
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Reduced mucosal perianastomotic capillary density in rat small intestine with cronic radiation damage1998In: Radiat Res, Vol. 150, p. 542-Article in journal (Refereed)
  • 36.
    Jahnson, S
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Anastomotic healing of small bowel with or without chronic radiationdamage in protein-deficient malnourished rats.1996In: Eur J Surg, Vol. 162, p. 47-Article in journal (Refereed)
  • 37. Jahnson, S
    et al.
    Graf, W
    Rikner, G
    Gerdin, Bengt
    Anastomotic breaking strength and healing of anastomoses in rat intestine with and without chronic radiation damage.1995In: European Journal of Surgery, ISSN 1102-4151, E-ISSN 1741-9271, Vol. 161, no 6, p. 425-30Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: To assess the influence of chronic radiation damage on anastomotic healing in the small bowel in rats.

    DESIGN: Controlled laboratory study.

    SETTING: University hospital, Sweden.

    MATERIAL: 90 male Sprague-Dawley rats.

    INTERVENTIONS: A short segment of the distal ileum was exteriorised and irradiated with a single dose (experimental group, n = 45) or exposed only (control group, n = 45). Twenty weeks later resection and anastomosis were done within this segment using 7/0 polypropylene.

    MAIN OUTCOME MEASURES: The anastomotic breaking strength, the amount of perianastomotic hydroxyproline, and the number of anastomotic complications.

    RESULTS: The breaking strength and the amount of perianastomotic hydroxyproline were higher in the irradiated than in the non-irradiated group. In contrast, anastomotic complications were significantly more common in irradiated animals.

    CONCLUSION: Anastomotic complications in irradiated intestine are not related to the amount of perianastomotic collagen or to breaking strength.

  • 38.
    Jahnson, S
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Graf, W
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Rikner, G
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Anastomotic breaking strength and healing of anastomoses in rat intestinewith and without chronic radiation damage.1995In: Eur J Surg, Vol. 161, p. 425-Article in journal (Refereed)
  • 39. Jahnson, S
    et al.
    Holtz, A
    Gerdin, Bengt
    Anastomotic blood-flow reduction in rat small intestine with chronic radiation damage.1998In: Digestion, ISSN 0012-2823, E-ISSN 1421-9867, Vol. 59, no 2, p. 134-41Article in journal (Refereed)
    Abstract [en]

    BACKGROUND/AIMS: Anastomoses in previously irradiated intestine are prone to leakage, possibly due to an impeded blood supply. Whether or not chronic radiation damage actually predisposes to a disturbed blood flow in the vicinity of anastomoses was investigated in the rat small bowel.

    METHOD: A 2-cm segment of rat ileum was irradiated with a single dose (21 Gy). After 20 weeks an anastomosis was created in the irradiated segment and in the corresponding segment of controls. Another 4 days later local blood flow was studied with the 14C-iodoantipyrine autoradiography technique in 16 sectors around the circumference both in the anastomotic segment and in a segment 4 mm apart.

    RESULTS: In the anastomotic segment, the average blood flow was reduced in irradiated compared with non-irradiated animals in the mucosal layer (p = 0.034), but not in the muscular layer (p = 0.08). In the mesenteric quadrant blood flow was reduced in irradiated compared with non-irradiated animals, both in the mucosal layer (p = 0.012) and in the muscular layer (p = 0.05). More irradiated than non-irradiated animals showed a blood-flow reduction to 15% or more in 13-16 sectors both in the mucosal (p = 0.015) and the muscular layer (p = 0.04).

    CONCLUSIONS: The results favor the hypothesis that anastomoses in previously irradiated intestine are vascularly compromized and thereby have an increased risk of leakage.

  • 40.
    Johnsson, C
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Hallgren, Roger
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
    Elvin, A
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Tufveson, G
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Hyaluronidase ameliorates rejection-induced edema1999In: Transplant Int, Vol. 12, p. 235-Article in journal (Refereed)
  • 41.
    Johnsson, Cecilia
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences. plastikkirurgi. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Tufveson, Gunnar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences.
    Effects of commonly used immunosuppressants on graft-derived fibroblasts2004In: Clinical and Experimental Immunology, ISSN 0009-9104, E-ISSN 1365-2249, Vol. 136, no 3, p. 405-412Article in journal (Refereed)
    Abstract [en]

    In acute rejection of transplanted organs intragraft fibroblasts increase their production of hyaluronan. Hyaluronan has strong water binding capacity and an increased tissue content of hyaluronan thus contributes to the development of interstitial oedema. The present study examined the effects of commonly used immunosuppressants (prednisolone, cyclosporin, tacrolimus, mycophenolic acid and sirolimus) on fibroblast proliferation, hyaluronan production and cell surface receptor expression. Fibroblasts isolated from rejecting tissue and from normal, non-transplanted tissue were studied in parallel. All substances investigated, except tacrolimus, were found to affect fibroblasts in one way or another. The most striking effect was the almost total inhibition of fibroblast proliferation in the presence of mycophenolic acid. Cyclosporin reduced the proliferation by about 50% and prednisolone had an inhibiting effect on hyaluronan production (50% reduction). These effects were observed on fibroblasts isolated from rat cardiac allografts undergoing rejection as well as on fibroblasts obtained from normal heart tissue. In contrast, sirolimus was found to stimulate the proliferation of fibroblasts from rejecting tissue (100% increase), but not that of normal fibroblasts. The majority of the fibroblasts expressed the hyaluronan receptor CD44, with a more intense expression in cultures of fibroblasts derived at rejection. None of the immunosuppressants affected the staining pattern (number of positive cells or intensity). The inhibitory effects of prednisolone, cyclosporin and mycophenolic acid on fibroblasts may contribute to the overall beneficial effects of these drugs when used for prevention or treatment of rejection.

  • 42.
    Johnsson, Hans
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health. Pediatrik.
    Eriksson, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Genetics and Pathology. Patologi.
    Gerdin, Bengt
    Hällgren, Roger
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
    Sedin, Gunnar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health.
    Hyaluronan in the human neonatal lung: association with gestational age and other perinatal factors.2003In: Biol Neonate, ISSN 0006-3126, Vol. 84, no 3, p. 194-201Article in journal (Other academic)
  • 43.
    Kildal, Morten
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Andersson, Gerhard
    Fugl-Meyer, Axel R
    Lannerstam, Kurt
    Gerdin, Bengt
    Development of a Brief Version of the Burn Specific Health Scale (BSHS-B)2001In: J Trauma, Vol. 51, p. 740-746Article in journal (Refereed)
  • 44.
    Kildal, Morten
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Andersson, Gerhard
    Gerdin, Bengt
    Health status in Swedish burn patients:: Assessment utilising three variants of the Burn Specific Health Scale.2002In: Burns, Vol. 28, p. 639-645Article in journal (Refereed)
  • 45.
    Kildal, Morten
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Willebrand, Mimmie
    Andersson, Gerhard
    Gerdin, Bengt
    Ekselius, Lisa
    Coping strategies, injury characteristics and long-term outcome after burn injury2005In: Injury, ISSN 0020-1383, E-ISSN 1879-0267, Vol. 36, no 3, p. 511-518Article in journal (Refereed)
  • 46.
    Kildal, Morten
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Willebrand, Mimmie
    Andersson, Gerhard
    Gerdin, Bengt
    Ekselius, Lisa
    Personality characteristics and perceived health problems after burn injuryIn: Article in journal (Refereed)
  • 47.
    Kiwanuka, E.
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Andersson, L.
    Caterson, E.
    Junker, J.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Eriksson, E.
    Ccn2 Regulates Keratinocyte Adhesion And Migration Via Integrin Alpha-5/Beta-12013In: Wound Repair and Regeneration, ISSN 1067-1927, E-ISSN 1524-475X, Vol. 21, no 2, p. A30-A30Article in journal (Other academic)
  • 48.
    Kiwanuka, Elizabeth
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Andersson, Lauren
    Caterson, Edward J.
    Junker, Johan P. E.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Eriksson, Elof
    CCN2 promotes keratinocyte adhesion and migration via integrin alpha 5 beta 12013In: Experimental Cell Research, ISSN 0014-4827, E-ISSN 1090-2422, Vol. 319, no 19, p. 2938-2946Article in journal (Refereed)
    Abstract [en]

    Background: CCN2, (a.k.a. connective tissue growth factor and CTGF) has emerged as a regulator of cell migration. While the importance of CCN2 for the fibrotic process in wound healing has been well studied, the effect of CCN2 on keratinocyte function is not well understood. In this study, we investigated the mechanism behind CCN2-driven keratinocyte adhesion and migration. Materials and methods: Adhesion assays were performed by coating wells with 10 mu g/ml fibronectin (FN) or phosphate-buffered saline (PBS). Keratinocytes were seeded in the presence or absence of 200 ng/ml CCN2, 5 mmol/l ethylenediaminetetraacetic acid, 10 mmol/l cations, 500 mu l arginine-glycine-aspartic acid (RGD), 500 mu M arginine-glycine-glutamate-serine (RGES), and 10 mu g/ml anti-integrin blocking antibodies. Migration studies were performed using a modified Boyden chamber assay. Quantitative PCR was used to study the effect of CCN2 on integrin subunit mRNA expression. To block intracellular pathways, keratinocytes were pretreated with 20 mu M PD98059 (MEN-1 inhibitor) or 20 mu M PF573228 (FAN inhibitor) for 60 min prior the addition of CCN2. Western blot was used to measure CCN2, p-ERK1/2, and ERK1/2. Results: CCN2 enhanced keratinocyte adhesion to fibronectin via integrin alpha 5 beta 1. The addition of anti-integrin alpha 5 beta 1 antibodies reduced CCN2-mediated keratinocyte migration. In addition, CCN2 regulated mRNA and protein expression of integrin subunits alpha 5 and beta 1 CCN2 activated the FAK-MAPK signaling pathway, and pretreatment with MEK1-specific inhibitor PD98059 markedly reduced CCN2-induced keratinocyte migration. Conclusions: Our results demonstrate that CCN2 enhances keratinocyte adhesion and migration through integrin alpha 5 beta 1 and activation of the FAK-MAPK signaling cascade.

  • 49.
    Kiwanuka, Elizabeth
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery. Division of Plastic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA.
    Andersson, Lauren
    Lee, Cameron
    Caterson, Edward J
    Junker, Johan
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Eriksson, Elof
    TGF-β1 regulates the expression of CCN2 in human keratinocytes via Smad-ERK signaling interplayManuscript (preprint) (Other academic)
  • 50.
    Kiwanuka, Elizabeth
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Hackl, Florian
    Caterson, Edward J.
    Nowinski, Daniel
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Junker, Johan P. E.
    Gerdin, Bengt
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
    Eriksson, Elof
    CCN2 is transiently expressed by keratinocytes during re-epithelialization and regulates keratinocyte migration in vitro by the ras-MEK-ERK signaling pathway2013In: Journal of Surgical Research, ISSN 0022-4804, E-ISSN 1095-8673, Vol. 185, no 2, p. E109-E119Article in journal (Refereed)
    Abstract [en]

    Background: CCN2 (previously known as connective tissue growth factor) is a multifunctional matricellular protein that has numerous effects on cell life and cell interactions with the connective tissue. Although the importance of CCN2 for the fibrotic process in wound healing has been well studied, the involvement of CCN2 in keratinocyte function has not yet been explored. Therefore, the aim of the present study was to investigate the role of CCN2 in the epidermis during wound healing. Materials and methods: Immunohistochemistry was done on sections from full-thickness porcine wounds. The effect of CCN2 on the migration of cultured human keratinocytes exposed to scratch wounds, the effect on phosphorylation of extracellular signal-related kinases (ERK), and the effect of adding inhibitors to the ERK/ mitogen-activated protein kinase pathway to human keratinocytes were studied. Results: The CCN2 protein was transiently expressed in vivo at the leading keratinocyte edge during re-epithelialization of full-thickness porcine wounds. In vitro, exogenous addition of CCN2 to human keratinocyte cultures regulated keratinocyte migration and resulted in phosphorylation of ERK. The addition of inhibitors of ERK/mitogen-activated protein kinase counteracted the effect of CCN2 on migration. Conclusions: CCN2 was transiently expressed at the leading keratinocyte edge in vivo. The biologic importance of this was supported in vitro, because CCN2 regulated human keratinocyte migration through activation of the Ras-mitogen-activated protein kinase kinase-ERK signal transduction pathway.

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