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JSM:致命蜘蛛毒素或改善男性勃起功能障碍

2012-09-05 孝文 新浪科技

    科学家发现,巴西游走蛛分泌的毒素注入身体20分钟内,就能让勃起功能障碍者重振雄风。这种毒液可能是有效改善男性性生活质量的秘密武器。     通过老鼠进行的试验显示,巴西游走蛛毒液能够增加一氧化氮(可扩张血管,促进血流的一种化学物质)的分泌量,大大提高勃起功能。这与当前治疗阳痿的药物的起效原理类似。死于巴西游走蛛的人比死于其他蜘蛛

    科学家发现,巴西游走蛛分泌的毒素注入身体20分钟内,就能让勃起功能障碍者重振雄风。这种毒液可能是有效改善男性性生活质量的秘密武器。

    通过老鼠进行的试验显示,巴西游走蛛毒液能够增加一氧化氮(可扩张血管,促进血流的一种化学物质)的分泌量,大大提高勃起功能。这与当前治疗阳痿的药物的起效原理类似。死于巴西游走蛛的人比死于其他蜘蛛纲动物的人多得多。被它咬到的人通常不出一小时就会毙命。这种蜘蛛又名香蕉蜘蛛,这是因为它们习惯偷乘运送这种水果的货船。

    2008年,英国肯特郡查莎姆一家超市的工作人员在码放盛香蕉的箱子时,在一个箱子底下发现一只巴西游走蛛,这家超市为此关门歇业。英国有十分之一的男性在生命的某个阶段出现勃起功能障碍。尽管伟哥、西力士和立威大等药物在过去10年间已经变革了勃起功能障碍的治疗手段,但有大约30%的男性服用这些药物后没有任何改善。对这些男性而言,唯一的其他选择是直接向阳具里注射药物,或者使用可手动增加男性器官血流量的泵。不过这两种方法均不受欢迎。用蜘蛛毒液制成的药物将被证明是一种有效的替代方法。

    巴西和美国研究人员从这种致命蜘蛛毒液里提取被命名为PnTx2-6的毒素,然后把它注射到存在老年勃起功能障碍的老鼠体内。他们发现,这种毒素通过增加一氧化氮分泌量来改善勃起功能。一氧化氮通过让血管壁变松弛,有效促进了雄性生殖器里的血液循环。该研究成果发表在《性医学》杂志上,研究人员在报告里说:“注射PnTx2-6 15到20分钟后,由年龄导致的勃起功能下降部分恢复。”巴西科学家看到被蜘蛛咬到的人的性生活水平得到明显改善的报告后,开始对这种致命蜘蛛能够促进性功能的能力感兴趣。

拓展阅读;

           JACC:男性性功能障碍或是心脏病早期信号

           FDA批准阿伐那非(Avanafil)治疗男性勃起功能障碍           

           美食品药监局批准Stendra用于治疗勃起功能障碍

           Cephalalgia:男性偏头痛或与勃起功能障碍症有关

文献链接:
Nunes KP, Toque HA, Borges MH, Richardson M, Webb RC, de Lima ME.Erectile Function Is Improved in Aged Rats by PnTx2-6, a Toxin from Phoneutria nigriventer Spider Venom.J Sex Med. 2012 Aug 23. doi: 10.1111/j.1743-6109.2012.02878.x

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    2013-01-03 habb
  2. [GetPortalCommentsPageByObjectIdResponse(id=1771111, encodeId=bb601e71111bc, content=<a href='/topic/show?id=c1c6334227d' target=_blank style='color:#2F92EE;'>#勃起#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=33422, encryptionId=c1c6334227d, topicName=勃起)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=78b838213583, createdName=habb, createdTime=Thu Jan 03 10:29:00 CST 2013, time=2013-01-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1420974, encodeId=35f714209e461, content=<a href='/topic/show?id=09d33294eb8' target=_blank style='color:#2F92EE;'>#功能障碍#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32947, encryptionId=09d33294eb8, topicName=功能障碍)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b3493649807, createdName=naiwu78, createdTime=Fri Sep 07 05:29:00 CST 2012, time=2012-09-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1502696, encodeId=239d1502696e1, content=<a href='/topic/show?id=bf0f3342395' target=_blank style='color:#2F92EE;'>#勃起功能#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=33423, encryptionId=bf0f3342395, topicName=勃起功能)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7e529549448, createdName=liuyiping, createdTime=Fri Sep 07 05:29:00 CST 2012, time=2012-09-07, status=1, ipAttribution=)]
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