ArticleMolecular biology reports2022
Neuroepigenetic alterations in the prefrontal cortex of type 2 diabetic mice through DNA hypermethylation.
Article in Molecular biology reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 8 citations in OpenAlex.
- Research Progress on Pathology, Molecular Mechanisms, and Intervention Strategies of Cognitive Dysfunction Associated with Type 2 Diabetes.International journal of general medicine · 2026Review
- Crosstalk between skeletal muscle and the brain during physical activity - in search of epigenetic mechanisms.Epigenetics · 2025Review
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDNA methylation changes have known to downregulate several regulatory proteins epigenetically during various neurodegenerative disorders. Our study aims to understand the effect of this global DNA methylation on the cerebral complications of type 2 diabetes mice, and its notable effect on maintaining the synaptic fidelity. METHODS AND
resultsChronic high fat diet and streptozotocin-induced diabetic mice were studied for the neurobehavioral and neuroanatomic parameters pertaining to prefrontal cortex, subsequently elucidating the associated changes in DNA methylation within these diabetic brains. Further, the impact of this epigenetic dysregulation on HSF1, BDNF and PSD95 were studied by assessing the binding affinity and level of % methylation within the promoter site of their respective genes. Our study suggest increased DNMT aberrations within the prefrontal cortex, with increased MeCP2 levels, confirming DNA hypermethylation. This was in accordance with the altered neurobehavioral changes. Further, the hypermethylation was found to participate in gene silencing of HSF1, BDNF and PSD95 proteins, responsible for maintaining the synaptic fidelity.
conclusionOverall, our study concludes the plausible involvement of neuroepigenetic alterations in the prefrontal cortex (PFC) of the type 2 diabetes mice, specifically DNA hypermethylation. PFC plays a central role in modulating cognitive and other executive functions through its connection with several brain regions, and thus therapeutic strategies targeting epigenetic modulations in it, can pave a way in controlling several neurological alterations in the brain.
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