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논문 기본 정보

자료유형
학술저널
저자정보
김명석 (가톨릭대학 의학부 생리학교실) 이윤렬 (가톨릭대학 의학부 생리학교실)
저널정보
대한생리학회 대한생리학회지 대한생리학회지 제17권 제1호
발행연도
1983.1
수록면
63 - 69 (7page)

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This study was conducted to investigate the effect of prostaglandin $E_2(PGE_2)$ and indomethacin upon the electrical activity of the isolated cat stomach muscle strips$(1.5{\times}7.0\;cm)$. Fifty-seven muscle strips, obtained from 57 cat stomachs(including corpus and antrum) were studied in a muscle chamber filled with Krebs solution(pH 7.4, temperature $36{\pm}0.5^{\circ}C$) aerated with 5% $CO_2$ in $O_2$. The electrical activity was recorded by five capillary electrodes (Ag-AgCl), of which two were placed on the corpus and three on the antrum. After recording of the electrical activity in normal Krebs solution, $PGE_2$ in concentrations of 0.25(N=7), 0.5(=7), 1(N=7) and $2{\times}10^{-7}\;M(N=6)$ were administered to 27 muscle strips, while indomethacin was applied in concentretions of 0.25(N=9), 0.5(N=10), 1(N=6) and $2{\times}10^{-3}\;M(N=5)$ to the remaining 30 strips. The mean frequency were minutely measured from each electrogastrogram. 1) By adding $PGE_2$ in all doses, gastric slow wave frequency increased significantly compared with that in resting state. 2) Following $PGE_2$ administration, peak slow wave frequency increased dose-dependently. 3) After indomethacin addition in all doses, the slow wave frequency decreased significantly compared with that in resting state. 4) Following indomethacin administration, incidence of complete abolition of slow wave increased dose-dependently, and its latent period decreased also in a dose-dependent manner. It is inferred from the above results that prostaglandin $E_2$ has a facilitatory role in the development of gastric slow wave in cat.

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