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Abstract

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Àü¸³¼±ºñ´ëÁõÀÌ Àִ ȯÀÚ´Â À½ÁÖ ÈÄ ¿äÆó°¡ ¹ß»ýÇϱ⠽±´Ù. ÀÌ´Â ¾ËÄڿÿ¡ ÀÇÇÑ ÀÌ´¢ÀÛ
¿ë°ú ¾ËÄÚ¿Ã ÀÚüÀÇ ±³°¨½Å°æÈ¿°ú¿Í ÁßÃ߽Űæ°èÀÇ ¾ïÁ¦¿¡ ÀÇÇÏ¸ç ¶ÇÇÑ Àü¸³¼±°ú Àü¸³¼±¿äµµ
ÀÇ ºÎÁ¾À̳ª ¿ïÇ÷À» ¾ß±â½ÃÄÑ ¿ä·ù¸¦ Æó»ö½ÃÅ°±â ¶§¹®ÀÌ´Ù. ¿¡Åº¿ÃÀÇ ¼·Ãë ÈÄ¿¡ ¿¡Åº¿ÃÀº
°£¿¡¼­ ´ë»çÀÛ¿ëÀ¸·Î acetaldehyde, acetic acid ±×¸®°í ÃÖÁ¾À¸·Î CO2¿Í
H2O·Î ºÐÇصȴÙ. À̶§ »ý¼ºµÈ ´ë»ç¹°ÁúÀº ü³»¿¡¼­ ¿©·¯°¡Áö ¿ªÇÒÀ» ÇÏ°Ô µÈ
´Ù. ¿¡Åº¿ÃÀÌ ÆòÈ°±ÙÀÇ ¼öÃà·ÂÀ» ÀúÇϽÃŲ´Ù´Â º¸°í´Â ¸¹À¸³ª acetaldehyde¿Í acetic acid°¡
¹æ±¤¿¡ ´ëÇÑ È¿°ú¿¡ ´ëÇؼ­´Â ¾ÆÁ÷ ¸¹Àº º¸°í°¡ ¾ø´Ù. µû¶ó¼­ ÀúÀÚµéÀº ¿¡Åº¿Ã°ú ±×ÀÇ ´ë»ç
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Purpose: This study was designed to investigate the direct effects of ethanol and its
metabolites, acetaldehyde and acetic acid, on isolated rat bladder muscle.
Materials and Methods: For measuring of isometric tension change, rat bladder muscle
strips were used. Following ethanol(0.25-3%) was applied to
bethanechol(0.1mM)-precontracted muscle strips, acetaldehyde(0.1 to 10mM) and acetic
acid(0.1 to 10mM) were applied to resting muscle strips respectively, and were applied
to bethanechol(0.1 mM)-precontracted muscle strips respectively.
Results: Bladder contraction of tissue strips induced by bethanechol was reduced by
ethanol in a dose-dependent manner. Acetaldehyde(1 to 10mM) and acetic acid(5 to 1
0mM) increased the rssting tension(control group), and acetaldehyde(0.1 to 10mM) and
acetic acid(0.1 to 10mM) applied to bethanechol-induced contraction enhanced
significantly contraction compared to control group.
Conclusions: The results of this study indicate that responses of the rat bladder
muscle were reduced by exposure to ethanol, and however, acetaldehyde and acetic acid
affect the resting tension itself and show synergistic effect to bethanechol in bladder
contractility. These suggest that all of the acute ethanol intoxication did not cause to
urinary retention in human with benign prostatic hyperplasia.

Å°¿öµå

Ethanol; Acetaldehyde; Acetic acid; Bladder contractility;

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