Pharmacological investigations on cross adaptation in mice subjected to stress immobilization

Life Sciences
Eitika ChauhanAmteshwar S Jaggi

Abstract

The present study was designed to investigate the existence of cross adaptation between immobilization and foot shock stress, and to identify the role of endogenous opioids in cross adaptation. Mice were subjected to acute stress using a single episode of immobilization of 2h duration; while stress adaptation was induced by repeated exposures to homotypic stressor for 5 days. To explore the existence of cross adaptation, homotypic stressor was replaced with a heterotypic stressor on the 6th day and foot shocks of 0.5 mA intensity, 1s duration with an interval of 2 min were delivered for 1h. Stress-related behavioral alterations were assessed using the actophotometer, hole board, open field and social interaction tests. A single exposure of immobilization produced the significant behavioral alterations that were restored on the 5th day following repeated applications of immobilization stress, indicating the development of stress adaptation. Furthermore, acute exposure of foot shock (heterotypic stressor) did not produce the behavioral alterations in immobilization stress adapted animals, indicating the development of cross adaptation. Administration of naloxone abolished the restoration of behavioral changes as a part of adaptiv...Continue Reading

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Citations

Jul 15, 2015·Reviews in the Neurosciences·Anjana Bali, Amteshwar Singh Jaggi
Jul 27, 2015·Life Sciences·Eitika ChauhanAmteshwar Singh Jaggi
Mar 31, 2015·Life Sciences·Anjana Bali, Amteshwar Singh Jaggi
Jun 8, 2017·Journal of Basic and Clinical Physiology and Pharmacology·Anjana Bali, Amteshwar Singh Jaggi
Feb 23, 2020·The International Journal of Neuroscience·Rajdeep KaurAnjana Bali
Jul 28, 2020·Journal of Basic and Clinical Physiology and Pharmacology·Harpreet KaurAnjana Bali

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