동의생리병리학회지 (Journal of Physiology & Pathology in Korean Medicine)

  • 제25권4호
  • /
  • Pages.691-696
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  • 2011
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  • 1738-7698(pISSN)
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  • 2288-2529(eISSN)
대한동의생리학회·한의병리학회 ( The Physiological Society of Korean Medicine and The Society of Pathology in Korean Medicine)
권호 표지

Effect of the Electroacupuncture at ST36 in TMT-induced Memory Deficit Rats

  • Shim, Hyun-Soo (Acupuncture and Meridian Science Research Center, Kyung Hee University) ;
  • Park, Hyun-Jung (Acupuncture and Meridian Science Research Center, Kyung Hee University) ;
  • Lee, Hye-Jung (Acupuncture and Meridian Science Research Center, Kyung Hee University) ;
  • Shim, In-Sop (Acupuncture and Meridian Science Research Center, Kyung Hee University)
  • 투고 : 2011.07.13
  • 심사 : 2011.08.10
  • 발행 : 2011.08.25
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초록

In order to the neuroprotective effect of electroacupuncture (EA), the present study examined the effects of electroacupuncture inacupoint ST36 (Stomach 36) on trimethyltin chloride (TMT)-induced cognitive impairments rat using the Morris water maze (MWM) task and immunohistochemistry staining. The rats were randomly divided into the following groups: naive rat (Normal), TMT injection rat (Control), TMT injection + EA treated rat inacupoint ST36 (ST36) and TMT injection + EA treated rat in non-acupoint, base of tail (Non-AC). Electroacupuncture (2Hz, 2mA, and 10 minutes)was applied either to the acupuncture point ST36 or the nonacupuncture point in the tail for the last 14 days. In the water maze test, the animals were trained to find a platform in a fixed position during 4d and then received 60s probe trial on the $5^{th}$ day following removal of platform from the pool. Rats with TMT injection showed impaired learning and memory of the tasks and treatment with EA in acupoint ST36 (P<0.05) produced a significant improvement in escape latency to find the platform after $2^{nd}$ day and retention trial in the Morris water maze. Consistent with behavioral data, treatment with EA in acupoint ST36 also significantly increased expression of Choline acetyltransferase (ChAT) and Acetylcholinesterase (AChE) immunoreactive neurons in the hippocampus compared to the Control group. These results demonstrated that EA in acupoint ST36 has a protective effect against TMT-induced neuronal and cognitive impairments. The present study suggests that EA in acupoint ST36 might be useful in the treatment of TMT-induced learning and memory deficit.

키워드

참고문헌

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