Abstract
Background: Cellular senescence is associated with the formation and progression of a range of
illnesses, including ageing and metabolic disorders such as diabetes mellitus and pancreatic beta cell dysfunction.
Ageing and reduced glucose tolerance are interconnected. Often, Diabetes is becoming more common,
which is concerning since it raises the risk of a variety of age-dependent disorders such as cardiovascular
disease, cancer, Parkinson's disease, stroke, and Alzheimer's disease.
Objectives: The objectives of this study are to find out the most recent research on how ageing affects the
functions of pancreatic beta cells, beta cell mass, beta cell senescence, mitochondrial dysfunction, and hormonal
imbalance.
Methods: Various research and review manuscripts are gathered from various records such as Google
Scholar, PubMed, Mendeley, Scopus, Science Open, the Directory of Open Access Journals, and the Education
Resources Information Centre, using different terms like "Diabetes, cellular senescence, beta cells,
ageing, insulin, glucose".
Results: In this review, we research novel targets in order to discover new strategies to treat diabetes. Abnormal
glucose homeostasis and type 2 diabetes mellitus in the elderly may aid in the development of novel
medicines to delay or prevent diabetes onset, improve quality of life, and, finally, increase life duration.
Conclusion: Aging accelerates beta cell senescence by generating premature cell senescence, which is
mostly mediated by high glucose levels. Despite higher plasma glucose levels, hepatic gluconeogenesis
accelerates and adipose tissue lipolysis rises, resulting in an increase in free fatty acid levels in the blood
and worsening insulin resistance throughout the body.
Graphical Abstract
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