PMID: 29071925Aug 25, 2016Paper

Effects of Electroacupuncture on Hippocampal nNOS Expression in Rats with Anxiety-like Behavior

Zhen ci yan jiu = Acupuncture research
Ting-Ting WangChang-Bao Rong

Abstract

To compare the effects of electroacupuncture (EA) preconditioning and post-conditioning on hippocampal neuronal nitric oxide synthase (nNOS) expression in rats with anxiety-like behavior, so as to explore the reasonable EA intervention time. Forty-two SD rats were randomly divided into 6 groups:normal 1, normal 2, anxiety model 1, an-xiety model 2, EA-pre-conditioning and EA-post-conditioning. The anxiety model was established by giving the rats with repeated foot shock stimulation (0.8 mA, 2-25 s/time, 10 times in 5 min) combined with isolation-raising. Before or after modeling, EA stimulation was applied to "Baihui" (GV 20) and "Yintang" (GV 29) for 20 min, once a day for 7 days. Elevated plus maze (EPM) tests were performed to determine the percentages of time spent in the open arms and the percentages of entries into the open arms in 5 min for evaluating the animals' anxiety-like behavioral activities. The reverse transcriptase polymerase chain reaction (RT-PCR) was used to detect hippocampal nNOS mRNA expression and the immunohistochemical staining adopted to detect the expression of nNOS protein in the hippocampal CA 1 and CA 3 areas, respectively. Compared with their own normal control group 1 and 2, both the percentage ...Continue Reading

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