Why does obesity cause diabetes?

The accumulation of an excessive amount of body fat can cause type 2 diabetes, and the risk of type 2 diabetes increases linearly with an increase in body mass index. Accordingly, the worldwide increase in the prevalence of obesity has led to a concomitant increase in the prevalence of type 2 diabet...

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Bibliographic Details
Published in:Cell metabolism 2022-01, Vol.34 (1), p.11-20
Main Authors: Klein, Samuel, Gastaldelli, Amalia, Yki-Järvinen, Hannele, Scherer, Philipp E.
Format: Article
Language:English
Subjects:
Adipose Tissue - metabolism
Adiposity
Diabetes Mellitus, Type 2 - metabolism
Humans
Insulin Resistance - physiology
Obesity - metabolism
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Summary:The accumulation of an excessive amount of body fat can cause type 2 diabetes, and the risk of type 2 diabetes increases linearly with an increase in body mass index. Accordingly, the worldwide increase in the prevalence of obesity has led to a concomitant increase in the prevalence of type 2 diabetes. The cellular and physiological mechanisms responsible for the link between obesity and type 2 diabetes are complex and involve adiposity-induced alterations in β cell function, adipose tissue biology, and multi-organ insulin resistance, which are often ameliorated and can even be normalized with adequate weight loss. Klein et al. examine the cellular and physiological mechanisms that explain why people with obesity develop metabolic dysfunction and type 2 diabetes. They also review the effects of weight loss, induced by negative energy balance, on adipose tissue biology and multi-organ system function that can cause remission of diabetes.
ISSN:1550-4131
1932-7420
DOI:10.1016/j.cmet.2021.12.012