RESUMEN
Opiate addiction has a high rate of relapse. The accumulating evidence shows that electroacupuncture (EA) may be effective for the treatment of opiate relapse. However, the change of expression of CB1-Rs and CB2-Rs involve in 2Hz EA anti-relapse pathway is still unclear. To explore the changes of expression of CB1-Rs and CB2-Rs, heroin self-administration (SA) model rats were adopted and treated using 2Hz EA. The expressions of CB1-Rs and CB2-Rs were observed using immunohistochemistry method. The results showed that, compared with the control group, active pokes in the heroin-addicted group increased, while the active pokes decreased significantly in 2Hz EA group compared with heroin-addicted group. Correspondingly, the expression of CB1-Rs in prefrontal cortex (PFC), hippocampus (Hip), nucleus accumbens (NAc) and ventral tegmental area (VTA) all increased significantly while the expression of CB2-Rs in those relapse-relevant brain regions decreased obviously in heroin-addicted group when compared with the control group. In addition, the expression of CB1-Rs obviously decreased in the 2Hz EA group while the expression of CB2-Rs in those relapse-relevant brain regions increased significantly when compared with the heroin-addicted group. It indicated that 2Hz EA could attenuate the heroin-evoked seeking behaviors effectively. The anti-relapse effects of 2Hz EA might be related to the decrease of CB1-Rs and increase of CB2-Rs expression in relapse-relevant brain regions of heroin SA rats.
Asunto(s)
Conducta Animal/efectos de los fármacos , Encéfalo/efectos de los fármacos , Comportamiento de Búsqueda de Drogas/efectos de los fármacos , Electroacupuntura , Dependencia de Heroína/terapia , Heroína/administración & dosificación , Antagonistas de Narcóticos/administración & dosificación , Receptor Cannabinoide CB1/metabolismo , Receptor Cannabinoide CB2/metabolismo , Animales , Encéfalo/metabolismo , Encéfalo/fisiopatología , Modelos Animales de Enfermedad , Extinción Psicológica/efectos de los fármacos , Dependencia de Heroína/metabolismo , Dependencia de Heroína/fisiopatología , Dependencia de Heroína/psicología , Locomoción/efectos de los fármacos , Masculino , Ratas Sprague-Dawley , Recurrencia , Autoadministración , Transducción de SeñalRESUMEN
OBJECTIVE: Exploring the relationship between Liver-Blood Stasis (LBS) and liver fibrosis (LF) to lay a theoretical foundation of rational using traditional Chinese medicines against LF. METHODS: Human procollagen peptide III (hPC III), hyaluronic acid (HA), laminin (LN) in the sera of 35 patients with hepatopathy and Blood Stasis Syndrome (HP-BS) and 35 patients with hepatopathy and Non-Blood Stasis Syndrome (HP-NBS) were measured by radioimmunoassay. Thirty healthy subjects were taken as control. Correlation analysis between the degrees of LBS and those of the serum indexes of LF was made. RESULTS: (1) hPC III, HA, LN in the sera of the patients with HP-BS were markedly higher than those in the sera of the patients with HP-NBS, but the latter were markedly higher than healthy subjects. (2) Degrees of LBS correlated closely with those of LF. (3) (Xuefu Zhuyu Decoction XFZYD) not only might improve the degrees of LBS but also decline the serum LF indexes. Nevertheless, the curative effects in early period of taking the herbs only showed serum HA dropped. CONCLUSION: The nature of LF in traditional Chinese medicine concept is mainly LBS. The degrees of LBS might reflect those of LF to a certain extent. XFZYD showed effective in declining serum LF indexes but it needs at least 2 months.