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Gastric bypass promotes more lipid mobilization than a similar weight loss induced by low-calorie diet
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Upper Abdominal Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Geriatrics.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences.
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2011 (English)In: Journal of Obesity, ISSN 2090-0708, E-ISSN 2090-0716, Vol. 2011, 959601- p.Article in journal (Refereed) Published
Abstract [en]

Background.

Recently, we found large reductions in visceral and subcutaneous fat one month after gastric bypass (GBP), without any change in liver fat content.

Purpose.

Firstly to characterize weight loss-induced lipid mobilization after one month with preoperative low-calorie diet (LCD) and a subsequent month following GBP, and secondly, to discuss the observations with reference to our previous published findings after GBP intervention alone.

Methods.

15 morbidly obese women were studied prior to LCD, at GBP, and one month after GBP. Effects on metabolism were measured by magnetic resonance techniques and blood tests.

Results.

Body weight was similarly reduced after both months (mean: -8.0 kg, n = 13). Relative body fat changes were smaller after LCD than after GBP (-7.1 ± 3.6% versus -10 ± 3.2%, P = .029, n = 13). Liver fat fell during the LCD month (-41%, P = .001, n = 13) but was unaltered one month after GBP (+12%).

Conclusion.

Gastric bypass seems to cause a greater lipid mobilization than a comparable LCD-induced weight loss. One may speculate that GBP-altered gastrointestinal signalling sensitizes adipose tissue to lipolysis, promoting the changes observed.

Place, publisher, year, edition, pages
2011. Vol. 2011, 959601- p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-141507DOI: 10.1155/2011/959601PubMedID: 21197152OAI: oai:DiVA.org:uu-141507DiVA: diva2:385710
Available from: 2011-01-12 Created: 2011-01-12 Last updated: 2017-12-11Bibliographically approved

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Kullberg, JoelSundbom, MagnusJohansson, LarsAhlström, Håkan

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RadiologyUpper Abdominal SurgeryGeriatricsDepartment of Public Health and Caring SciencesDepartment of Surgical SciencesDepartment of Medical Sciences
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