Molecular complexities underlying the vascular complications of diabetes mellitus - A comprehensive review.
Level 5 - mechanism / opinion, no new human data
Narrative review describing biochemical and molecular mechanisms without systematic review methodology or new human data.
PubMed 32505477 · doi:10.1016/j.jdiacomp.2020.107613
What was done
The authors reviewed the molecular mechanisms and pathways linking chronic hyperglycemia and endothelial dysfunction to macrovascular (peripheral artery disease, cardiovascular disease, cerebrovascular disease) and microvascular (microangiopathy, nephropathy, retinopathy, neuropathy) complications in diabetes mellitus.
What was found
The abstract reports no empirical numbers, effect sizes, or statistical metrics. It describes qualitative molecular mechanisms of hyperglycemia-induced vascular injury, specifically: activation of the polyol, protein kinase C (PKC), advanced glycation end products (AGE), and hexosamine pathways; overproduction of reactive oxygen species; growth factor and cytokine dysregulation; epigenetic DNA alterations; and microRNA abnormalities.
Why it matters
Understanding the shared and pathway-specific mechanisms of diabetic vascular damage helps identify biological targets for therapeutics aimed at preventing or halting microvascular and macrovascular disease progression.
Limits
As a narrative review, it provides no original clinical or experimental data, systematic search protocol, study selection criteria, or quantitative synthesis. Abstract details are limited to general mechanistic descriptions.
Cited by
- supports Chronically high blood sugar damages blood vessel walls over time.