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Probio Antimicrob Prot: 吃糖竟能防蛀牙

2013-12-09 张章 中国科学报

你的牙科医生可能告诉你,不要吃糖。但是,你也可能通过吃糖与蛀牙作斗争。在一项新研究中,志愿者能通过吃糖果降低唾液中引发蛀牙的细菌水平。【原文下载】 人类牙齿表面存在无数细菌。进餐后,它们会炮制出大量的酸,腐蚀牙釉质。如果不定期进行清洁,这些细菌最终会在牙上腐蚀出一个洞。这里,一类名为变形链球菌的细菌是罪魁祸首。研究人员已经知道,发酵乳中的乳酸菌等“好细菌”能束缚变形链球菌。之前有研究显示,这种细

你的牙科医生可能告诉你,不要吃糖。但是,你也可能通过吃糖与蛀牙作斗争。在一项新研究中,志愿者能通过吃糖果降低唾液中引发蛀牙的细菌水平。【原文下载

人类牙齿表面存在无数细菌。进餐后,它们会炮制出大量的酸,腐蚀牙釉质。如果不定期进行清洁,这些细菌最终会在牙上腐蚀出一个洞。这里,一类名为变形链球菌的细菌是罪魁祸首。研究人员已经知道,发酵乳中的乳酸菌等“好细菌”能束缚变形链球菌。之前有研究显示,这种细菌封锁能力可以降低老鼠蛀牙数量。

德国生物技术公司ORGANOBALANCE的微生物学家Christine Lang和同事发现,乳酸菌能够减少人类唾液中变形链球菌数量。研究人员测验了60位志愿者唾液中的变形链球菌。然后,一些参与者吃了含有科学家已经用高温杀死乳酸菌的薄荷糖,另一些参与者则吃了无菌薄荷糖。第一轮糖果吃完后,研究人员采集了唾液样本,之后参与者又吃了三块糖,科学家采集了最终样本。

吃含有细菌的薄荷糖的参与者唾液中的变形链球菌较前一天变少,相关研究报告发表于《益生菌和抗菌蛋白》期刊上。当咀嚼这些针对变形链球菌的糖果时,它们能将该细菌从牙齿表面带走。即使科学家杀死了乳酸菌,其表面的糖结构也不会遭到破坏,研究人员推测,该糖结构能钩在自由活动的变形链球菌上,阻止它们回到牙齿上。然后,志愿者能够吞下或吐出这些新的细菌结合体。

研究人员认为,尽管一些坏细菌仍然在嘴里,乳酸菌能够除去足够的变形链球菌,以降低发生蛀牙的风险。“这是考虑细菌的一个完全不同的方式,我们不想杀死它们,只希望移走它们。”Lang说。

原文出处

Holz C, Alexander C, Balcke C, Moré M, Auinger A, Bauer M, Junker L, Grünwald J, Lang C, Pompejus M.Lactobacillus paracasei DSMZ16671 Reduces Mutans Streptococci: A Short-Term Pilot Study.Probiotics Antimicrob Proteins. 2013;【原文下载

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    2014-03-05 sunylz
  2. [GetPortalCommentsPageByObjectIdResponse(id=1916997, encodeId=79cb191699e8d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Wed Mar 05 00:30:00 CST 2014, time=2014-03-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1857311, encodeId=dc09185e31155, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Fri Mar 28 05:30:00 CST 2014, time=2014-03-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1643260, encodeId=03f4164326093, content=<a href='/topic/show?id=ebab8860136' target=_blank style='color:#2F92EE;'>#蛀牙#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=88601, encryptionId=ebab8860136, topicName=蛀牙)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=994c23178449, createdName=lq1775, createdTime=Sun Feb 02 02:30:00 CST 2014, time=2014-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2084092, encodeId=939e208409272, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Sun Jun 15 08:30:00 CST 2014, time=2014-06-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1601695, encodeId=a80d16016958e, content=<a href='/topic/show?id=2f801469e57' target=_blank style='color:#2F92EE;'>#PRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14697, encryptionId=2f801469e57, topicName=PRO)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a60b18898917, createdName=sunylz, createdTime=Wed Dec 11 05:30:00 CST 2013, time=2013-12-11, status=1, ipAttribution=)]
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    2014-02-02 lq1775
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    2014-06-15 xjy02
  5. [GetPortalCommentsPageByObjectIdResponse(id=1916997, encodeId=79cb191699e8d, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Wed Mar 05 00:30:00 CST 2014, time=2014-03-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1857311, encodeId=dc09185e31155, content=<a href='/topic/show?id=3f48525849' target=_blank style='color:#2F92EE;'>#CRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5258, encryptionId=3f48525849, topicName=CRO)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c30265, createdName=jiafufeng@yaho, createdTime=Fri Mar 28 05:30:00 CST 2014, time=2014-03-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1643260, encodeId=03f4164326093, content=<a href='/topic/show?id=ebab8860136' target=_blank style='color:#2F92EE;'>#蛀牙#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=88601, encryptionId=ebab8860136, topicName=蛀牙)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=994c23178449, createdName=lq1775, createdTime=Sun Feb 02 02:30:00 CST 2014, time=2014-02-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2084092, encodeId=939e208409272, content=<a href='/topic/show?id=61f411e013b' target=_blank style='color:#2F92EE;'>#Micro#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11701, encryptionId=61f411e013b, topicName=Micro)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d59291, createdName=xjy02, createdTime=Sun Jun 15 08:30:00 CST 2014, time=2014-06-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1601695, encodeId=a80d16016958e, content=<a href='/topic/show?id=2f801469e57' target=_blank style='color:#2F92EE;'>#PRO#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14697, encryptionId=2f801469e57, topicName=PRO)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a60b18898917, createdName=sunylz, createdTime=Wed Dec 11 05:30:00 CST 2013, time=2013-12-11, status=1, ipAttribution=)]
    2013-12-11 sunylz
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