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Posted : 2008³â 08¿ù 05ÀÏ 10:46 KST
 
·¹ºñÆ®¶ó µî ¹ß±âºÎÀü Ä¡·áÁ¦°¡ ³úÁ¾¾çÀÇ Ç×¾ÏÄ¡·á È¿°ú¸¦ ³ô¿©Áشٴ »õ·Î¿î ¿¬±¸°á°ú°¡ ³ª¿Í ÁÖ¸ñµÈ´Ù.

¹Ì±¹ ½Ã´õ½º ½Ã³ªÀÌ ¸ÞµðÄü¾ÅÍ(Cedars-Sinai Medical Center)ÀÇ Å°½º ºí·¢ ¹Ú»ç´Â Áã ½ÇÇè °á°ú, ¹ß±âºÎÀüÄ¡·áÁ¦ ·¹ºñÆ®¶ó(vardenafil)¿Í ³úÁ¾¾ç Ä¡·áÁ¦¸¦ º´Çà Åõ¿©Çϸé, ´Üµ¶ Åõ¿©ÇßÀ» ¶§º¸´Ù »ýÁ¸±â°£ÀÌ ¿¬ÀåµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù°í ¹àÇû´Ù.ÀÌ ¿¬±¸ °á°ú´Â 'Brain Research' Àú³Î ÃÖ½ÅÈ£¿¡ ¹ßÇ¥µÆ´Ù.

'·¹ºñÆ®¶ó'´Â phosphodiesterase: PDE 5 ÀúÇØÁ¦·Î ¾Ë·ÁÁø ¹ß±âºÎÀü Ä¡·áÁ¦ÀÌ´Ù.¹ß±âºÎÀüÄ¡·áÁ¦µéÀº ·¹ºñÆ®¶ó(¹ÙÀÌ¿¤½¦¸µÁ¦¾à), ¾ßÀ϶ó(Á¾±Ù´ç), ºñ¾Æ±×¶ó(Çѱ¹È­ÀÌÀÚÁ¦¾à), ÀÚÀ̵¥³ª(µ¿¾ÆÁ¦¾à), ½Ã¾Ë¸®½º(Çѱ¹ ¸±¸®), ¿¥ºò½º(SK ÄɹÌÄ®) µîÀÌ ÀÖ´Ù.

¡°the blood-brain tumor barrier-opening effects of PDE5 lasted considerably longer than those of bradykinin and allowed greater transport across the barrier into tumor tissues.¡±

¿¬±¸°á°ú¿¡ µû¸£¸é PDE5 ÀúÇØÁ¦°¡ ¸ð¼¼ Ç÷°üÀ» È®ÀåÇÏ´Â ºê·¡µðŰ´Ñ(bradykinin)º¸´Ù ´õ ¿À·§µ¿¾È Ç÷¾×³úÁ¾¾çÀ庮À» ¿­°í, ¾à¹°µµ ³ú Á¶Á÷¿¡ ´õ ¸¹ÀÌ ¼ö¼Û½ÃŰ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.

Because vardenafil was found to be more effective than sildenafil in increasing blood-brain tumor barrier permeability and transport, vardenafil was used in a survival study of 29 tumor-bearing rats. À̹ø ¿¬±¸¿¡¼­´Â ·¹ºñÆ®¶ó(sildenafil)°¡ ºñ¾Æ±×¶ó(sildenafil)º¸´Ù Ç÷¾×³úÁ¾¾çÀ庮(blood-brain tumor barrie) Åõ°ú¿¡ È¿°úÀûÀ̾ Áã ½ÇÇè¿¡ ÀÌ¿ëµÇ¾ú´Ù.

Those treated with saline (control) survived 32 days on average while those treated with vardenafil alone survived about 35 days and those treated with adriamycin alone survived about 42 days. When vardenafil was combined with adriamycin, rats survived an average 53 days.

½Ä¿°¼ö°¡ Åõ¿©µÈ ³ú¾Ï ¸ðµ¨ÀÇ Áã´Â 32ÀÏ »ýÁ¸ÇßÀ¸¸ç, ·¹ºñÆ®¶ó°¡ Åõ¿©µÈ Áã´Â 35ÀÏ »ýÁ¸Çß´Ù.ÇÏÁö¸¸ ¾Æµå¸®¾Æ¸¶À̽Å(adriamycin)ÀÌ ´Üµ¶ Åõ¿©µÈ Áã´Â 42ÀÏ »ýÁ¸Çß°í, ·¹ºñÆ®¶ó¿Í ¾Æµå¸®¾Æ¸¶À̽ÅÀÌ º´¿ë Åõ¿©µÇ´Â °æ¿ì¿¡´Â Æò±Õ 53Àϰ£ »ýÁ¸Çß´Ù.

¿¬±¸¸¦ ÁÖµµÇÑ ÄÉÀ̽º ºí·¢(Keith L. Black) ¹Ú»ç´Â ¡°PDE5 ÀúÇØÁ¦°¡ ÁãÀÇ Ç÷¾×³úÁ¾¾çÀ庮¿¡¼­ ¹°Áú Àü´ÞÀ» Çâ»ó½Ã۰í, Ç×¾ÏÁ¦ÀÎ ¾Æµå¸®¾Æ¸¶À̽ÅÀÇ È¿°ú¸¦ Áõ´ë½ÃŲ´Ù´Â °ÍÀ» º¸°íÇÑ ÃÖÃÊÀÇ ¿¬±¸°á°ú¡±À̶ó°í ¸»Çß´Ù.

¿ìÁ¤Çå ÆíÁýÀå ¼Ò°³: ¸ÞµðÄÃÇì·²µå½Å¹® ÆíÁýÀå °â ÀÇÇÐ Àü¹®±âÀÚ´Ù.Áß¾ÓÀϺ¸ ÇコÄɾî, ¸ÞµðÄÃÅõµ¥ÀÌ ÆíÁý±¹ÀåÀ» °ÅÄ¡¸ç ¼ö¸¹Àº ÀÇÇÐ ±â»ç¸¦ ¾²¸é¼­ ÀÇÇÐ ±âÀڷμ­ ³»°øÀ» ½×¾Ò´Ù.¶Ç ±³À°°úÇбâ¼úºÎ »êÇÏ °úÇнŹ® Àü¹®±âÀڷΠȰµ¿ÇÏ¸ç ±â»ç ¿µ¿ªÀ» ³ÐÈ÷°í ÀÖ´Ù.ÃÖ±Ù¿¡´Â µ¶Àڵ鿡°Ô '¸ÀÀÖ´Â' ÀÇÇÐ ±â»ç¸¦ Á¦°øÇϴµ¥ °ü½ÉÀÌ ¸¹´Ù.

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