Advancing a causal role of type 2 diabetes and its components in developing macro‐ and microvascular complications via genetic studies

Ahmed, A., Sattar, N. and Yaghootkar, H. (2022) Advancing a causal role of type 2 diabetes and its components in developing macro‐ and microvascular complications via genetic studies. Diabetic Medicine, 39(12), e14982. (doi: 10.1111/dme.14982) (PMID:36256488)

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Abstract

The role of diabetes in developing microvascular and macrovascular complications has been subject to extensive research. Despite multiple observational and genetic studies, the causal inference of diabetes (and associated risk factors) on those complications remains incomplete. In this review, we focused on type 2 diabetes, as the major form of diabetes, and investigated the evidence of causality provided by observational and genetic studies. We found that genetic studies based on Mendelian randomization provided consistent evidence of causal inference of type 2 diabetes on macrovascular complications; however, the evidence for causal inference on microvascular complications has been somewhat limited. We also noted high BMI could be causal for several diabetes complications, notable given high BMI is commonly upstream of type 2 diabetes and the recent calls to target weight loss more aggressively. We emphasize the need for further studies to identify type 2 diabetes components that mostly drive the risk of those complications. Even so, the genetic evidence summarized broadly concurs with the need for a multifactorial risk reduction approach in type 2 diabetes, including addressing excess adiposity.

Item Type:Articles
Additional Information:Funding Information: HY acknowledges support by grants from a Diabetes UK RD Lawrence fellowship (17/0005594).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sattar, Professor Naveed
Authors: Ahmed, A., Sattar, N., and Yaghootkar, H.
College/School:College of Medical Veterinary and Life Sciences > School of Cardiovascular & Metabolic Health
Journal Name:Diabetic Medicine
Publisher:Wiley
ISSN:0742-3071
ISSN (Online):1464-5491
Published Online:31 October 2022
Copyright Holders:Copyright © 2022 The Authors
First Published:First published in Diabetic Medicine 39(12): e14982
Publisher Policy:Reproduced under a Creative Commons license

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