Participation of AT1 and Mas receptors in the modulation of inflammatory pain.
Peptides
; 61: 17-22, 2014 Nov.
Article
en En
| MEDLINE
| ID: mdl-25169953
ABSTRACT
We investigated the mechanisms underlying the endogenous control of nociception at the peripheral level during inflammation. We hypothesized that angiotensin receptors could modulate pain at the peripheral level via endogenous processes because angiotensin receptors are present in peripheral nerve terminals. We evaluated the role of the angiotensin receptors system (RAS) in the modulation of inflammatory and neuropathic pain states. Mas receptor KO mice exhibited major inflammatory pain compared to wild-type mice. Similar results were observed when rats were injected with the Mas receptor antagonist A779 or the AT1 receptor antagonist, losartan after inflammatory stimulation by carrageenan. However, these antagonists were not effective in animals with neuropathic-induced pain (e.g., sciatic nerve constriction). Therefore, RAS seems to play an important role in inflammatory but not neuropathic pain.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Dolor
/
Fragmentos de Péptidos
/
Angiotensina II
/
Proteínas Proto-Oncogénicas
/
Losartán
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Receptores Acoplados a Proteínas G
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Receptor de Angiotensina Tipo 1
/
Bloqueadores del Receptor Tipo 1 de Angiotensina II
Límite:
Animals
Idioma:
En
Revista:
Peptides
Año:
2014
Tipo del documento:
Article
País de afiliación:
Brasil