Title : Depressive behavior in the forced swim test can be induced by TRPV1 receptor activity and is dependent on NMDA receptors.

Pub. Date : 2014 Jan

PMID : 24200896






5 Functional Relationships(s)
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1 To test this we activated heat-sensitive TRPV1 receptors in mice by water that is warmer than body temperature (41 C) or a low dose of resiniferatoxin (RTX). resiniferatoxin transient receptor potential cation channel, subfamily V, member 1 Mus musculus
2 To test this we activated heat-sensitive TRPV1 receptors in mice by water that is warmer than body temperature (41 C) or a low dose of resiniferatoxin (RTX). resiniferatoxin transient receptor potential cation channel, subfamily V, member 1 Mus musculus
3 Although a desensitizing regimen of RTX (3-5 injections of 0.1 mg/kg s.c.) decreased immobility during swims at 26 C, it did not during swims at 41 C. In contrast, low dose of RTX (0.02 mg/kg s.c.) enhanced immobility, but only during swims at 41 C. Thus, activation of TRPV1 receptors, endogenously or exogenously, enhances immobility and these sites are activated by cold rather than warmth. resiniferatoxin transient receptor potential cation channel, subfamily V, member 1 Mus musculus
4 Although a desensitizing regimen of RTX (3-5 injections of 0.1 mg/kg s.c.) decreased immobility during swims at 26 C, it did not during swims at 41 C. In contrast, low dose of RTX (0.02 mg/kg s.c.) enhanced immobility, but only during swims at 41 C. Thus, activation of TRPV1 receptors, endogenously or exogenously, enhances immobility and these sites are activated by cold rather than warmth. resiniferatoxin transient receptor potential cation channel, subfamily V, member 1 Mus musculus
5 ), each inhibited the increase in immobility induced by the low dose of RTX, verifying its mediation by TRPV1 sites. resiniferatoxin transient receptor potential cation channel, subfamily V, member 1 Mus musculus