Chrysin alleviates the impeded neurogenesis in accelerated brain aging by D-galactose in rats.

IF 4.4 4区 医学 Q1 GERIATRICS & GERONTOLOGY Biogerontology Pub Date : 2025-03-14 DOI:10.1007/s10522-025-10215-0
Ram Prajit, Nataya Sritawan, Anusara Aranarochana, Apiwat Sirichoat, Wanassanun Pannangrong, Peter Wigmore, Jariya Umka Welbat
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引用次数: 0

Abstract

Aged-related cognitive impairments are associated with molecular neurodegenerations and impeded neurogenesis in the dentate gyrus (DG) of the damaged hippocampus. Neurogenesis requires activated cyclic AMP-responsive element-binding protein (CREB) pathway to enhance neuronal development, synaptic plasticity, cognition, learning and memory. Current research has reported that consecutive administration of D-galactose can accelerate brain aging by inducing oxidation and inflammation. The flavonoid chrysin has been demonstrated in medical dietary supplements and shown neuroprotective effect on impeded neurogenesis. This study aimed to clarify that chrysin preserves neurogenesis by modulating molecular pathway in accelerated brain aging induced by D-galactose. Signs of aging, processes of neurogenesis, and protein regulating neurogenesis were evaluated in male Sprague Dawley (SD) rats, which were allocated into four groups: vehicle rats, accelerated aging rats treated with D-galactose, normal rats receiving chrysin, and cotreated rats receiving both D-galactose and chrysin. Aging signs showed only a subsidence in volume of the granular cell layer (GCL) after consecutive administration of D-galactose. Cell proliferation, neurogenic niches, and protein regulating proliferation were downregulated in the accelerated aging rats. Likewise, cell survivals and proteins related to CREB pathway were depleted in rats receiving D-galactose. Nevertheless, rats cotreated with chrysin maintained in all parameters that were adversely affected by D-galactose. In conclusion, chrysin could alleviate the disruption of molecular regulation of neurogenesis in accelerated brain aging induced by D-galactose.

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来源期刊
Biogerontology
Biogerontology 医学-老年医学
CiteScore
8.00
自引率
4.40%
发文量
54
审稿时长
>12 weeks
期刊介绍: The journal Biogerontology offers a platform for research which aims primarily at achieving healthy old age accompanied by improved longevity. The focus is on efforts to understand, prevent, cure or minimize age-related impairments. Biogerontology provides a peer-reviewed forum for publishing original research data, new ideas and discussions on modulating the aging process by physical, chemical and biological means, including transgenic and knockout organisms; cell culture systems to develop new approaches and health care products for maintaining or recovering the lost biochemical functions; immunology, autoimmunity and infection in aging; vertebrates, invertebrates, micro-organisms and plants for experimental studies on genetic determinants of aging and longevity; biodemography and theoretical models linking aging and survival kinetics.
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Chrysin alleviates the impeded neurogenesis in accelerated brain aging by D-galactose in rats. Distinguishing the intrinsic and extrinsic causes of changes in human mortality by examining life-table aging rate (LAR) trajectories through the lens of generalized Gompertz-Makeham law. Modelling orexinergic system in ageing in the African turquoise killifish. Neuroinflammation increases in old and oldest-old rats except for dura mater meningeal tissue with significant gender differences: a translational perspective. The crosstalk between CNS resident glial cells and peripheral immune cells is critical for age-dependent demyelination and subsequent remyelination.
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