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Çѱ¹È¯°æ»ýÅÂÇÐȸ / v.17, no.1, 2003³â, pp.18-25

( Effect of PCB on the Oocyte Maturation and Proges- terone Production of Frog, Rana dybowskii in Vitro )
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PCB°¡ »ê°³±¸¸® ¿©Æ÷³­ÀÚÀÇ ¼º¼÷°ú ÇÁ·ÎÁ¦½ºÅ×·Ð »ý¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸±â À§ÇØ ¹è¾ç¾×¿¡ ÀÏÁ¤ ³óµµÀÇ PCB(Arochlor 1248)¸¦ ³óµµº°·Î ÷°¡ÇÑ ÈÄ ³­ÀÚµéÀ» 20½Ã°£ ¹è¾çÇÏ¿´´Ù. ³­ÀÚÀÇ ¼º¼÷°ú ÇÁ·ÎÁ¦½ºÅ×·Ð »ý¼ºÀ» À¯µµÇϱâ À§ÇÏ¿© FPH(Frog pituitary homogenate: 0.01p.e/$mell$)¸¦ »ç¿ëÇÏ¿´À¸¸ç ¿©Æ÷³­ÀÚÀÇ ¼º¼÷À²Àº ³­ÀÚ ³»ÀÇ ÇÙ¸· ºØ±«À²·ÎºÎÅÍ ±¸ÇÏ¿´°í ÇÁ·ÎÁ¦½ºÅ×·Ð »ý¼ºÀº ¹è¾ç¾×³»·Î ºÐºñµÇ´Â ¾çÀ» Á¶»çÇÏ¿´´Ù. ½ÇÇè °á°ú PCB´Â 10ppbÀÇ ³óµµºÎÅÍ ¿©Æ÷³­ÀÚÀÇ ¼º¼÷°ú ÇÁ·ÎÁ¦½ºÅ×·Ð »ý¼ºÀ» ÇöÀúÈ÷ ¾ïÁ¦ÇÏ¿´À¸¸ç PCB ÀÛ¿ëÀÇ °¡¿ª¼ºÀ» Á¶»çÇϱâ À§ÇØ 3½Ã°£ µ¿¾È ¿©Æ÷³­ÀÚµéÀ» PCB¿¡ ³ëÃâ½ÃŲ ÈÄ º¸Åë ¹è¾ç¾×À¸·Î ¿Å°Ü °è¼Ó ¹è¾çÀ» ÇØ º» °á°ú PCB 2.5ppb¿¡¼­´Â °¡¿ª¼ºÀ» ³ªÅ¸³»¾úÀ¸³ª 5 ppb¿¡¼­´Â ºñ°¡¿ªÀûÀÎ ¼Õ»óÀ» ÁÖ¾ú´Ù. ÀÌ¿Í °°ÀÌ PCB´Â ³·Àº ³óµµ¿¡¼­ ³­ÀÚÀÇ ¼º¼÷°ú ÇÁ·ÎÁ¦½ºÅ×·ÐÀÇ ºÐºñ µîÀ» ¾ïÁ¦ÇÏ¿´À¸¸ç, °³±¸¸® ³­ÀÚ ¹è¾ç°è´Â ȯ°æ¿À¿°¹°ÁúÀÇ µ¶¼º °ËÁ¤¿¡ ¿ä±äÇÏ°Ô »ç¿ëÇÒ ¼ö ÀÖÀ½À» ½Ã»çÇÏ¿´´Ù
In order to know the effects of PCB(Arochlor 1248) on the oocyte maturation and proges-terone(P$_4$) production by FPH(Frog pituitary homogenate: 0.01 p.e/$mell$) of frog in vitro, the oocytes were cultured for 20 hours in presence of the PCB at various concentrations and exam-ined their maturation(germinal vesicle breakdown: GVBD) rates and P$_4$ levels secreted by the oocyte in the culture medium. The results show that PCB concentration of 10 ppb suppressed the maturation of the oocytes and secretion of P$_4$. To examine the reversibility of the inhibitory effects, the oocytes were exposed to the PCB only for 3 hours, and then transferred to plain medium and cultured further for 17 hours. The oocytes were recovered from the toxic effect of the PCB when they were exposed to 2.5 ppb, but not to 5 ppb of the PCB. These results indi-cate that PCB suppress the maturation of oocytes and secretion of p, at low concentration, sug-gesting that the frog oocyte culture system can be used as a useful tool to evaluate the toxicity of the pollutants in the environment.
 
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Çѱ¹È¯°æ»ýÅÂÇÐȸÁö / v.17, no.1, 2003³â, pp.18-25
Çѱ¹È¯°æ»ýÅÂÇÐȸ
ISSN : 1229-3857
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921689367)
¾ð¾î : Çѱ¹¾î
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