Effect of starvation and insulin-induced hypoglycemia on oxidative stress scavenger system and electron transport chain complexes from rat brain, liver, and kidney.

Abstract

Considerable evidence suggests that oxidative stress plays an important role in tissue damage associated with hypoglycemia and other metabolic disorders. The altered brain neurotransmitters metabolism, cerebral electrolyte contents, and impaired blood-brain barrier function may contribute to CNS dysfunction in hypoglycemia. The present study elucidates the effect of starvation and insulin-induced hypoglycemia on the free radical scavanger system--reduced glutathione (GSH) content, glutathione S-transferase (GST), glutathione peroxidase (GPx), glutathione reductase (GR), gamma-glutamyl transpeptidase (gamma-GTP), gamma-glutamyl cystein synthetase (gamma-GCS), catalase and superoxide dismutase (SOD), and mitochondrial electron transport chain (ETC) complexes I-IV from three different regions of rat brain, namely cerebral hemispheres (CH), cerebellum (CB), and brainstem (BS). Peripheral organs, such as liver and kidney, were also studied. Significant changes in these enzymic activities were observed. The analysis of such alterations is important in ultimately determining the basis of neuronal dysfunction during metabolic stress conditions, such as hypoglycemia, and also defining the nature of these changes may help to develop therapeutic means to cure metabolically stressed tissues.

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@article{Bhardwaj1998EffectOS, title={Effect of starvation and insulin-induced hypoglycemia on oxidative stress scavenger system and electron transport chain complexes from rat brain, liver, and kidney.}, author={Surender Kumar Bhardwaj and Madhunika Sharma and Gaurav Gulati and Anjolie Chhabra and Rajeev Mohan Kaushik and Pradeep Sharma and Gurvinder Kaur}, journal={Molecular and chemical neuropathology}, year={1998}, volume={34 2-3}, pages={157-68} }