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A semi-mechanistic red blood cell survival model provides some insight into red blood cell destruction mechanisms
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
2013 (English)In: Journal of Pharmacokinetics and Pharmacodynamics, ISSN 1567-567X, E-ISSN 1573-8744, Vol. 40, no 4, 469-478 p.Article in journal (Refereed) Published
Abstract [en]

Most mathematical models developed for the survival of haematological cell populations, in particular red blood cells (RBCs), follow the principle of parsimony. They focus on the predominant destruction mechanism of age-related cell death (senescence) and do not account for within subject variability in the RBC lifespan. However, assessment of the underlying physiological destruction mechanisms can be of interest in pathological conditions that affect RBC survival, for example sickle cell anaemia or anaemia of chronic kidney disease. We have previously proposed a semi-mechanistic RBC survival model which accounts for four different types of RBC destruction mechanisms. In this work, it is shown that the proposed model in combination with informative RBC survival data is able to provide a deeper insight into RBC destruction mechanisms. The proposed model was applied in a non-linear mixed effect modelling framework to biotin derived RBC survival data available from literature. Three mechanisms were estimable based on the available data of twelve subjects, including random destruction, senescence and destruction due to delayed failure. It was possible to identify three subjects with a decreased RBC survival in the study population. These three subjects all showed differences in the contribution of the estimated destruction mechanisms: an increased random destruction, versus an accelerated senescence, versus a combination of both.

Place, publisher, year, edition, pages
2013. Vol. 40, no 4, 469-478 p.
Keyword [en]
Red blood cells, Lifespan, Destruction mechanisms, Survival model, Random labelling, Biotin
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-206573DOI: 10.1007/s10928-013-9322-4ISI: 000322244900004OAI: oai:DiVA.org:uu-206573DiVA: diva2:644893
Available from: 2013-09-02 Created: 2013-09-02 Last updated: 2017-12-06Bibliographically approved

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Korell, Julia

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