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是什么让零食如此诱人?

2015-05-15 coo 生物360

《科学报道》上发布的一项针对大鼠的小型研究显示,零食中脂肪和碳水化合物的相对水平在促进食欲方面有重要作用。但还不清楚是否会引起过量的食物摄入。高热量,高脂肪,高碳水化合物的食物可能引起超过正常吃饱肚子需求的食物摄入,这会增加热量的摄入导致体重增加。根据以前给大鼠喂薯片的研究,科学家们认为零食这类食物会调节大脑奖赏系统的活动。有假说认为,热量可能是零食好吃和让大脑获得奖赏感的关键,让你吃的更多。然而

《科学报道》上发布的一项针对大鼠的小型研究显示,零食中脂肪和碳水化合物的相对水平在促进食欲方面有重要作用。但还不清楚是否会引起过量的食物摄入。

高热量,高脂肪,高碳水化合物的食物可能引起超过正常吃饱肚子需求的食物摄入,这会增加热量的摄入导致体重增加。根据以前给大鼠喂薯片的研究,科学家们认为零食这类食物会调节大脑奖赏系统的活动。有假说认为,热量可能是零食好吃和让大脑获得奖赏感的关键,让你吃的更多。然而,Monika Pischetstrieder 和她的研究团队发现,是脂肪和碳水化合物的比例,而不是热量的绝对值,让大鼠觉得一些食物更好吃。

总共18只大鼠被给予了标准鼠粮或者含有不同脂肪和碳水化合物含量的食物进行测试。研究显示食物的脂肪和碳水化合物比例最接近薯片时最可口,并且会影响同奖励和上瘾有关的大脑区域的活动模式,虽然效果没有以前观察到的直接喂薯片那么强。因此作者们认为,摄食行为可能也受到零食中其他成分(而不只是热量)的影响。

原始出处:

Tobias Hoch,Silke Kreitz,Simone Gaffling,Monika Pischetsrieder & Andreas Hess.Fat/carbohydrate ratio but not energy density determines snack food intake and activates brain reward areas.SCIENTIFIC REPORTS 5,Article number: 10041 doi:10.1038/srep10041.May 14,2015

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    2015-06-09 18619c0a62m

    参考参考。

    0

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    2015-05-18 darkdaisy

    不觉得薯片可口呀

    0

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    2015-05-17 huaxipanxing

    看看

    0

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    2015-05-16 zdl0016

    美食,可口

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=26563, encodeId=942726563d9, content=参考参考。, beContent=null, objectType=article, channel=null, level=null, likeNumber=195, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12a31627589, createdName=18619c0a62m, createdTime=Tue Jun 09 16:18:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23990, encodeId=9a0d23990f4, content=不觉得薯片可口呀, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b9da1623000, createdName=darkdaisy, createdTime=Mon May 18 00:44:00 CST 2015, time=2015-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23871, encodeId=adae238e10c, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=146, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sun May 17 19:49:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23656, encodeId=e9b42365682, content=美食,可口, beContent=null, objectType=article, channel=null, level=null, likeNumber=193, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=zdl0016, createdTime=Sat May 16 18:07:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23639, encodeId=7e2523639e4, content=大鼠和人一个口味?, beContent=null, objectType=article, channel=null, level=null, likeNumber=183, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJUNfdk68bHutYruGyxbKDzPWH3agcmId19Yf94FiapyicN0LTg0jykhqIhjPQVdR08FGR399rBpZIg/132, createdBy=feae1624323, createdName=Dr.LV, createdTime=Sat May 16 11:50:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23631, encodeId=01282363175, content=比例接近薯片时最可口?, beContent=null, objectType=article, channel=null, level=null, likeNumber=15, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=52a11624185, createdName=Evilcat, createdTime=Sat May 16 10:18:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23624, encodeId=482223624f0, content=还有其他原因吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=hbwang006, createdTime=Sat May 16 08:39:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23593, encodeId=98ed23593e1, content=美丽分了, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:22:00 CST 2015, time=2015-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23592, encodeId=116a235922e, content=好东西, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:21:00 CST 2015, time=2015-05-15, status=1, ipAttribution=)]
    2015-05-16 Dr.LV

    大鼠和人一个口味?

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=26563, encodeId=942726563d9, content=参考参考。, beContent=null, objectType=article, channel=null, level=null, likeNumber=195, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12a31627589, createdName=18619c0a62m, createdTime=Tue Jun 09 16:18:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23990, encodeId=9a0d23990f4, content=不觉得薯片可口呀, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b9da1623000, createdName=darkdaisy, createdTime=Mon May 18 00:44:00 CST 2015, time=2015-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23871, encodeId=adae238e10c, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=146, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sun May 17 19:49:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23656, encodeId=e9b42365682, content=美食,可口, beContent=null, objectType=article, channel=null, level=null, likeNumber=193, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=zdl0016, createdTime=Sat May 16 18:07:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23639, encodeId=7e2523639e4, content=大鼠和人一个口味?, beContent=null, objectType=article, channel=null, level=null, likeNumber=183, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJUNfdk68bHutYruGyxbKDzPWH3agcmId19Yf94FiapyicN0LTg0jykhqIhjPQVdR08FGR399rBpZIg/132, createdBy=feae1624323, createdName=Dr.LV, createdTime=Sat May 16 11:50:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23631, encodeId=01282363175, content=比例接近薯片时最可口?, beContent=null, objectType=article, channel=null, level=null, likeNumber=15, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=52a11624185, createdName=Evilcat, createdTime=Sat May 16 10:18:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23624, encodeId=482223624f0, content=还有其他原因吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=hbwang006, createdTime=Sat May 16 08:39:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23593, encodeId=98ed23593e1, content=美丽分了, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:22:00 CST 2015, time=2015-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23592, encodeId=116a235922e, content=好东西, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:21:00 CST 2015, time=2015-05-15, status=1, ipAttribution=)]
    2015-05-16 Evilcat

    比例接近薯片时最可口?

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=26563, encodeId=942726563d9, content=参考参考。, beContent=null, objectType=article, channel=null, level=null, likeNumber=195, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12a31627589, createdName=18619c0a62m, createdTime=Tue Jun 09 16:18:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23990, encodeId=9a0d23990f4, content=不觉得薯片可口呀, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b9da1623000, createdName=darkdaisy, createdTime=Mon May 18 00:44:00 CST 2015, time=2015-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23871, encodeId=adae238e10c, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=146, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sun May 17 19:49:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23656, encodeId=e9b42365682, content=美食,可口, beContent=null, objectType=article, channel=null, level=null, likeNumber=193, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=zdl0016, createdTime=Sat May 16 18:07:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23639, encodeId=7e2523639e4, content=大鼠和人一个口味?, beContent=null, objectType=article, channel=null, level=null, likeNumber=183, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJUNfdk68bHutYruGyxbKDzPWH3agcmId19Yf94FiapyicN0LTg0jykhqIhjPQVdR08FGR399rBpZIg/132, createdBy=feae1624323, createdName=Dr.LV, createdTime=Sat May 16 11:50:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23631, encodeId=01282363175, content=比例接近薯片时最可口?, beContent=null, objectType=article, channel=null, level=null, likeNumber=15, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=52a11624185, createdName=Evilcat, createdTime=Sat May 16 10:18:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23624, encodeId=482223624f0, content=还有其他原因吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=hbwang006, createdTime=Sat May 16 08:39:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23593, encodeId=98ed23593e1, content=美丽分了, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:22:00 CST 2015, time=2015-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23592, encodeId=116a235922e, content=好东西, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:21:00 CST 2015, time=2015-05-15, status=1, ipAttribution=)]
    2015-05-16 hbwang006

    还有其他原因吧

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=26563, encodeId=942726563d9, content=参考参考。, beContent=null, objectType=article, channel=null, level=null, likeNumber=195, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12a31627589, createdName=18619c0a62m, createdTime=Tue Jun 09 16:18:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23990, encodeId=9a0d23990f4, content=不觉得薯片可口呀, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b9da1623000, createdName=darkdaisy, createdTime=Mon May 18 00:44:00 CST 2015, time=2015-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23871, encodeId=adae238e10c, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=146, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sun May 17 19:49:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23656, encodeId=e9b42365682, content=美食,可口, beContent=null, objectType=article, channel=null, level=null, likeNumber=193, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=zdl0016, createdTime=Sat May 16 18:07:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23639, encodeId=7e2523639e4, content=大鼠和人一个口味?, beContent=null, objectType=article, channel=null, level=null, likeNumber=183, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJUNfdk68bHutYruGyxbKDzPWH3agcmId19Yf94FiapyicN0LTg0jykhqIhjPQVdR08FGR399rBpZIg/132, createdBy=feae1624323, createdName=Dr.LV, createdTime=Sat May 16 11:50:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23631, encodeId=01282363175, content=比例接近薯片时最可口?, beContent=null, objectType=article, channel=null, level=null, likeNumber=15, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=52a11624185, createdName=Evilcat, createdTime=Sat May 16 10:18:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23624, encodeId=482223624f0, content=还有其他原因吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=hbwang006, createdTime=Sat May 16 08:39:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23593, encodeId=98ed23593e1, content=美丽分了, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:22:00 CST 2015, time=2015-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23592, encodeId=116a235922e, content=好东西, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:21:00 CST 2015, time=2015-05-15, status=1, ipAttribution=)]
    2015-05-15 MedSci客户端网友

    美丽分了

    0

  9. [GetPortalCommentsPageByObjectIdResponse(id=26563, encodeId=942726563d9, content=参考参考。, beContent=null, objectType=article, channel=null, level=null, likeNumber=195, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12a31627589, createdName=18619c0a62m, createdTime=Tue Jun 09 16:18:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23990, encodeId=9a0d23990f4, content=不觉得薯片可口呀, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b9da1623000, createdName=darkdaisy, createdTime=Mon May 18 00:44:00 CST 2015, time=2015-05-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23871, encodeId=adae238e10c, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=146, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sun May 17 19:49:00 CST 2015, time=2015-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23656, encodeId=e9b42365682, content=美食,可口, beContent=null, objectType=article, channel=null, level=null, likeNumber=193, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=zdl0016, createdTime=Sat May 16 18:07:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23639, encodeId=7e2523639e4, content=大鼠和人一个口味?, beContent=null, objectType=article, channel=null, level=null, likeNumber=183, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJUNfdk68bHutYruGyxbKDzPWH3agcmId19Yf94FiapyicN0LTg0jykhqIhjPQVdR08FGR399rBpZIg/132, createdBy=feae1624323, createdName=Dr.LV, createdTime=Sat May 16 11:50:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23631, encodeId=01282363175, content=比例接近薯片时最可口?, beContent=null, objectType=article, channel=null, level=null, likeNumber=15, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=52a11624185, createdName=Evilcat, createdTime=Sat May 16 10:18:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23624, encodeId=482223624f0, content=还有其他原因吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=99, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=hbwang006, createdTime=Sat May 16 08:39:00 CST 2015, time=2015-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23593, encodeId=98ed23593e1, content=美丽分了, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:22:00 CST 2015, time=2015-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23592, encodeId=116a235922e, content=好东西, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=MedSci客户端网友, createdTime=Fri May 15 22:21:00 CST 2015, time=2015-05-15, status=1, ipAttribution=)]
    2015-05-15 MedSci客户端网友

    好东西

    0

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近日,最新一期cell metabolism刊登了英国牛津大学的一项最新研究成果,他们发现WNT/β-catenin 信号通路在人体不同部位的活性差异会影响人体脂肪分布,并且这种脂肪分布的差异可能会导致患糖尿病和心血管疾病的风险不同。 研究人员指出,WNT信号通路中常见基因突变一般都与骨含量与脂肪分布有关,而脂肪分布情况常与糖尿病和心血管疾病患病风险紧密相关。之前研究发现WNT共受体分子LRP5和

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简单化合物或蕴涵生命起源之谜。图片来源:searchoflife生命的起源是一套悖论。起初,必须有一个遗传分子——脱氧核糖核酸(DNA)或核糖核酸(RNA),能够按模板制造出蛋白质,即生命的主力分子。离开蛋白质的帮助,现代的细胞无法自行复制DNA和RNA。更糟糕的是,这些分子机能的完成都离不开脂肪。在另一个鸡生蛋还是蛋生鸡的复杂问题中,合成这些脂肪需要基于蛋白质的酶类,而这些酶则由遗传分子编码。2

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