ROLE OF TRANSIENT RECEPTOR POTENTIAL V1 CHANNEL (TRPV1) IN ENALAPRIL INDUCED HYPERALGESIA: A PRELIMINARY STUDY
*Priyanshee Gohil, Vijay Rafalia, Gaurang Shah
ABSTRACT
Transient receptor potential vanilloid type-1 (TRPV1) activated by
various inflammatory mediators; plays a key role in occurrence of
hyperalgesia. Enalapril, an Angiotensin converting enzyme (ACE)
inhibitor, suggested for its hyperalgesic effect in preclinical and
clinical studies. Therefore, present investigation is carried out to find
out the role of TRPV1 in enalapril induced hyperalgesia using diabetic
mice model. Enalapril showed a significant decrease in nociceptive
threshold as compared to diabetic control group, while there was a
significant increase in reaction time, tail flick latency and tail
withdrawal latency, in the animals pre-treated with capsazepine, before
2 h of enalapril administration as compared to enalapril treated diabetic
group at day 10. TRPV1 might be involved in enalapril induced
hyperalgesia.
Keywords: Enalapril, hyperalgesia, TRPV1, diabetes mellitus, nociceptive threshold.
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