The Journal of Korean Medicine (대한한의학회지)

The Society of Korean Medicine (대한한의학회)
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The Effects of Electro-Acupuncture the Rat with Induced MCAO

  • Choi, Jung-Hyun (Department of physical medicine & rehabilitation(P.M & R), Hospital of Hallym university of Korea) ;
  • Kim, Ji-Sung (Department of Physical Therapy, Suwon Women's College of Korea) ;
  • Kim, Dong-Il (Department of Ob&Gy Dongguk Univ. Ilsan Korean Medicine Hospital) ;
  • Kim, Bo-Kyoung (Department of Physical Therapy, GunJang College of Korea) ;
  • Kim, Soon-Hee (Department of Physical Therapy, Yong-In Univ of Korea) ;
  • Song, Chi-Won (Department of Toxicology, National Institute Toxicology Research)
  • Published : 2009.05.30
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Abstract

Objectives : This study was aimed at examining the effects of the application of EA (electroacupuncture) at GV20 and LI4 in the early cerebral ischemia on the size of cerebral infarction, COX-2 and IL-6. Methods : For this experiment, 21, six-week-old male S-D (Sprague - Dawley) rats weighting 160g to 200g were selected and randomly classified into 3 groups, seven rats in each group. Brain ischemia was simulated using a modified Koizumi method which was performed on each rat. In the GV20 group, the GV20 of the SD rats was stimulated for thirty minutes with acupunctural electrode low frequency stimulator five hours after inducement of ischemia. For the LI4 group, the LI4 was stimulated as above, while for the Ischemia group, no stimulation was applied. Twenty-four hours after the experiment, stained cerebral tissues were examined and an immuno-histological test was done to examine inflammatory reaction Results : Out of the three groups, the LI4 group showed the smallest size of cerebral infarction and the Ischemia group showed the highest COX-2 (cyclooxygenase-2) expression value in the cortex of the cerebrum. In addition, the LI4 group showed the lowest COX-2 expression value in unknown putamen out of the three groups. Conclusions : We infer that EA, applied at LI4 and GV20 in early ischemia, is effective in delaying the expression of IL-6 (interleukin-6) and COX-2, the inflammatory agents manifested from stroke. In addition, application at LI4, rather than GV20, can lower the expression value of the inflammatory agents. Further, EA can be an effective way to block early inflammatory reaction in stroke.

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References

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