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OBJECTIVE To explore the effect of electroacupuncture on heroin seeking behavior and FosB expression in relevant brain regions. METHODS Rat model of heroin relapse behaviors was developed with progressive fixed ratio program,and model rats were randomly divided into 3 groups: a restraint group, a needle retention group, and a electroacupuncture group. The(More)
OBJECTIVE To investigate the effect of M(5) muscarinic receptor subtype on the locomotor sensitization induced by heroin priming, and it's effect on the FosB expression in the nucleus accumbens (NAc) and the hippocampus in the heroin sensitized rats. METHODS Locomotor activity was measured every 10 min for 1 h after subcutaneous injection of heroin. FosB(More)
AIM To observe mRNA expression of muscarinic acetylcholine receptors in spinal cord and brainstem in morphine dependent or withdrawal rats. METHODS The mRNA expression level of m1, m2, m3, m4 and m5 were determined by RT-PCR, the beta-actin mRNA expression was used as internal control. RESULTS The mRNA level of m1, m2, m3, m4 and m5 in spinal cord and(More)
OBJECTIVE To observe effects of electroacupuncture (EA) of low frequency on heroin-seeking behavior and FosB protein expression in relative brain regions so as to explore the mechanism of EA. METHODS Rat model of relapsing into heroin was established with progressive fixed ratio program, and model rats were randomly divided into 3 groups: a "Sanyinjiao"(More)
The antisense approach and immunohistochemistry were used to study the effects of different muscarinic receptor (M) subtypes and glial cell derived neurotrophic factor (GDNF) on the scores of morphine-withdrawal syndrome and the expression of c-Fos in locus coeruleus (LC). Intrathecal injection of M2 receptor antisense oligonucleotides (M2AS-oligo) or GDNF(More)
OBJECTIVE To compare effects of catgut embedding at "Zusanli" (ST 36) and "Shenshu" (BL 23) on Morphine analgesic tolerance and locomotor sensitization induced by chronic Morphine administration and the mechanism. METHODS The rats were randomly divided into a model group, a non-acupoint group, a Shenshu group and a Zusanli group. The rats, except those in(More)
The antisense approach and RT-PCR were used to study the effects of muscarinic receptors on the scores of morphine-withdrawal syndrome and the expression of NMDA receptor subtypes (NR(1A) and NR(2A)) mRNA in rat spinal cord and brainstem. The concentrations of glutamate in periaqueductal grey (PAG) of morphine-withdrawal rats were determined by capillary(More)
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