Ê« ÷ÍÌ¿íóÀÇ ðýñËÐÉø¸ Ðà ëÌßÒÐÉø¸ÀÇ å·×âùÊîÜàõòõ
THE PHARMACOLOGICAL RESFOSES OF THE CIRCULAR AND LONGITUDINAL MUSCLE OF THE ISOLATED RABBIT COLON
Àü³²ÀÇ´ëÀâÁö 1964³â 1±Ç 2È£ p.205 ~ 217
Kim Yung-Yul,
¼Ò¼Ó »ó¼¼Á¤º¸
( Kim Yung-Yul )
Chonnam National University Medical School Department of Pharmacology
KMID : 0376219640010020205
Abstract
íóÀÇ ðýñËÐɰú ×ÇßÒÙâÀÇ å·×âùÊîÜ àõòõ¿¡ ó¬×ä°¡ ÀÖÀ½ÀÌ ¾Ë·ÁÁ® Àִµ¥ (Brownlee and Harry, 1963), îÊíº´Â Ê«ØóÌ¿íóø¸¿¡¼ ÀÌ ïÃÀ» Ëþ÷ÐÇÏ¿© º¸¾Ò´Ù. ðýñËÐÉê¡ÔÑÀº ñ«·Î MagnusÛ°ç¶¿¡ ëîÇÏ¿© κóÌÇÏ¿´°í, ×ÇßÒÐÉê¡ý³Àº íóø¸À» üôÀ¸·Î ×ÇßÒÀ¸·Î °¥¶ó 3mmøëÀÇ ×ÇÀ» ¸¸µé¾î À̸¦ ðýÀ¸·Î ÊÐá÷Çϸç ×ÇßÒÐÉê¡ÔÑÀÌ õóúÞÄÉ ÇÏ¿© κóÌÇÏ¿´´Ù. ±× Ì¿Íý
1) å»ÐÉø¸Àº acetlrlcholine, Morepinephrine, Pilocerpine, Histamino, DMPP¿¡ ÓßÇÏ¿©¼´Â ÔÒìéÇÑ ÚãëëÀ» ïÐÇϰí,
2) 5-HT(5-Hydroxytryptamine)¿¡ ÓßÇÏ¿©¼µµ ¸¶Âù°¡Áö â¥õêÚãëëÀ» º¸À̳ª ±× â¥õêѦï®ÀÌ ´Ù¸¥ °Í °°¾Ò´Ù. ñí ×ÇßÒÐÉâ¥õêÀº Methylatropine, Hexametaium, Deseril·Î ôëù÷µÇ³ª, Morphne, TetracaineÀ¸·Î´Â ç¯úÂÀ» ¹ÞÁö ¾ÊÀºµ¥ ÓßÇÏ¿©, ðýñËÐÉâ¥õêÀº Morphine, Trtracaine, Drseril¿¡ ðÂù÷Ç쵂 Mettylatropine, HexamethoniumÀ¸·Î´Â ðÂù÷Ä¡ ¾Æ´ÏÇÏ¿´´Ù.
3) ÐÎÒ¿¡ áÉË¿µÈ ÎßÊïãêÌèÐÉýéÝÇð¥ÀÎ McN-A-343Ðà AHR-602¿¡ ÓßÇÏ¿© âÃßÒÐÉÀº â¥õêîÜÀ¸·Î ÚãëëÇÏ¿´´Ù. ðýñËÐÉÀº AHR-602¿¡ ÓßÇÏ¿©´Â â¥õêîÜÀ¸·Î ÚãëëÇϳª, McN-A-343¿¡ ÓßÇÑ ÚãëëÀº éÄÕá¿¡ µû¶ó ó¬ì¶°¡ ÀÖ¾úÀ¸¸ç ìéÚõîÜÀ¸·Î á´åÖ¿¡´Â ì¬èÐ, ÓÞåÖ¿¡´Â â¥ôóÚãëëÀ» º¸¿´´Ù. À̸®ÇÑ â¥õêÀº MethyratrcpineÀ¸·Î ðæòµÇ¿´´Ù.
4) ðýñËÐÉÀº Scolamire ðíî¤ù»¿¡¼´Â McN-A-343ÀÇ åÖÀÌ ¸¹¾Æµµ ùöãÁ ì¬èÐÀ» ÀÏÀ¸Ä×À¸¸ç ÀÌ ì¬èÐÀº ÓÞåÖÀÇ BretyliumÀ¸·Î ðæòµÇ³ª, á´åÖÀÇ Bretylium, HexamethoniumÀ¸·Î´Â ç¯úÂÀ» ¹ÞÁö ¾Æ´ÏÇÏ¿´´Ù.
5) ÓÞåÖÀÇ Scopolamine ðíî¤ù»¿¡¼ ÓÞåÖÀÇ AcetylcholineÀº âÃßÒÐÉ¿¡´Â ç¯úÂÀ» ÁÖÁö ¾Ê¾ÒÀ¸³ª ðýñËÐÉÀÇ ì¬èÐÀ» å´ÑÃÇÏ¿´´Ù. ÀÌ´Â HexamethoniumÐà á´ÕáÀÇ BretyliumÀ¸·Î ðæòµÇ¾ú´Ù.
ì¤ß¾ ð³ïÃÀ¸·Î ¹Ì·ç¾î Ê«÷ÍÌ¿íóÀÇ âÃßÒÐÉ Ðà ðýñËÐÉÀÇ å·×âùÊîÜ àõòõ¿¡ ó¬×ä°¡ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú°í, ÀÌ ó¬×ä´Â Brownlee and Harry(1963)°¡ úùÓá³íó¿¡¼ ¸»ÇѰÍó·³ ÐÉí»ô÷ÀÇ àõòõ¿¡ ëîÇѴٱ⠺¸´Ù´Â Ê«÷ÍÌ¿íó¿¡¼´Â ÐÉë¿ÀÇ ãêÌèßÒ÷¾¿¡ ÑÃì×ÇÑ °Í °°´Ù.
Employing a preparation of the circularmuscle strip of the rabbit colon, its pharmacological responses were compared with those of the longitudinal muscle. The responses to acetylcholine, norepinephrine, pilocarpine .histamine and DMPP were not different.
The effect of 5-hydroxytryptamine was a contraction in both muscles, but the nature of the contraction seemed to be different the response of the circular muscle was competitively blocked by methylatropine, hezamethonium and deseril and little affected by morphine and tetracaine; those of the longitudinal muscle was competitively blocked by morphine, tetracaine and deseril and little affected by methylatropine and hexamethonium.
Both McN-A-343 and AHR-602 produced contractions of the circular muscle. The longitudinal muscle was always contracted-by AHR-603, but its response to McN-A-343was varied with doses; generally a relaxation with low doses and a contraction with higher doses. The contraction Induced by AHR-602 or McN-A-343 was effectively blocked by methylatropine.
McN-A-343 produced always a relaxationi the presence of methylatropine or scopolamine, which was blocked by high doses of brety]ium, but not by hexamethonium or lower doses of bretylium. Huge doses of acetylcholine also produced a relaxation in the presence of high doses of scopolamine which was blocked by hexarnethoiliurn and lower doses of bretylium.
The main differences in the responses of the circular and longitudinal muscle of the rabbit colon to drugs seems to be in the nervous structures associated with the muscles.
Ű¿öµå
¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸
µîÀçÀú³Î Á¤º¸