Baidu
map

Diabetes:肝糖原可抑制机体肥胖

2014-11-18 佚名 生物谷

肝脏通常会以糖原的形式储存机体过多的糖类(葡萄糖等),随后释放到机体需要的部位;而糖尿病人机体肝脏却并不能储存糖原,这就是为何糖尿病患者经常会遭受高血糖症的原因;近日,一项来自巴塞罗那生物医学研究所(Institute for Research in Biomedicine)的研究报告称,小鼠机体中高水平肝脏葡萄糖的储存或与可以抑制小鼠体重增加,同时研究者也观察发现,尽管有免费的开胃食物,小鼠

肝脏通常会以糖原的形式储存机体过多的糖类(葡萄糖等),随后释放到机体需要的部位;而糖尿病人机体肝脏却并不能储存糖原,这就是为何糖尿病患者经常会遭受高血糖症的原因;近日,一项来自巴塞罗那生物医学研究所(Institute for Research in Biomedicine)的研究报告称,小鼠机体中高水平肝脏葡萄糖的储存或与可以抑制小鼠体重增加,同时研究者也观察发现,尽管有免费的开胃食物,小鼠的食欲依然会下降,这项研究首次揭示了肝脏和机体食欲之间的关联,相关研究发表于国际杂志Diabetes上。

文章中,研究者讨论了刺激肝糖原产生或可有效改善个体的糖尿病和肥胖,Guinovart教授表示,揭示肝脏对食欲的直接影响非常有意思;据世界卫生组织数据预测显示,预计到2035年世界上将会有3.82亿糖尿病患者,大约10人中就有1人是糖尿病患者。通过在分子水平上揭示糖尿病和肥胖的发病机制或许会为开发靶向性疗法提供更多的思路和希望,尽管这两种疾病都可以通过平衡饮食和经常锻炼来预防,但对于2型糖尿病患者来讲,因为饮食发病的人数仅占到了一半。

研究者提出疑问,为何肝脏积累糖原的小鼠尽管在有美味可口的食物的条件下依然不会发生体重增加的现象,另外研究者发现,这些动物吃的越少,其大脑中刺激食欲的分子往往越缺乏,反而其大脑中会存在许多抑制食欲的分子。最后研究人员发现了一种特殊的信号通路,其或许可以帮助解释肝脏和大脑之间的连接。

肝脏和大脑连接的关键就是ATP,ATP是机体所有组织“工作”所必需的能量,而ATP往往在糖尿病和肥胖患者机体中也是不断改变的,研究人员在高水平肝糖原小鼠的机体中同时也能发现稳定水平的ATP以及高水平的食欲抑制分子。

原始出处

López-Soldado I1, Zafra D1, Duran J1, Adrover A2, Calbó J1, Guinovart JJ3.Liver glycogen reduces food intake and attenuates obesity in a high-fat diet-fed mouse model.Diabetes. 2014 Oct 2.

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1636969, encodeId=665f16369692a, content=<a href='/topic/show?id=afda591646' target=_blank style='color:#2F92EE;'>#DIA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5916, encryptionId=afda591646, topicName=DIA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=987022654425, createdName=ms9608593228839890, createdTime=Sun Sep 27 04:08:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2007115, encodeId=a0bf200e11521, content=<a href='/topic/show?id=2f9e8133019' target=_blank style='color:#2F92EE;'>#肝糖原#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81330, encryptionId=2f9e8133019, topicName=肝糖原)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85df2500173, createdName=654699882_84926986, createdTime=Tue Dec 09 06:08:00 CST 2014, time=2014-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26364, encodeId=2a8e26364ee, content=非常好非常好, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 16:34:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1901255, encodeId=c7ee19012553b, content=<a href='/topic/show?id=c097591ed5' target=_blank style='color:#2F92EE;'>#Diabetes#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5917, encryptionId=c097591ed5, topicName=Diabetes)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0045169, createdName=木头人513, createdTime=Mon Mar 16 05:08:00 CST 2015, time=2015-03-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1759507, encodeId=541b1e595071c, content=<a href='/topic/show?id=9bea33520d' target=_blank style='color:#2F92EE;'>#BET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3352, encryptionId=9bea33520d, topicName=BET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a1a37427546, createdName=ms5439512287675881, createdTime=Thu May 21 13:08:00 CST 2015, time=2015-05-21, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1636969, encodeId=665f16369692a, content=<a href='/topic/show?id=afda591646' target=_blank style='color:#2F92EE;'>#DIA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5916, encryptionId=afda591646, topicName=DIA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=987022654425, createdName=ms9608593228839890, createdTime=Sun Sep 27 04:08:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2007115, encodeId=a0bf200e11521, content=<a href='/topic/show?id=2f9e8133019' target=_blank style='color:#2F92EE;'>#肝糖原#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81330, encryptionId=2f9e8133019, topicName=肝糖原)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85df2500173, createdName=654699882_84926986, createdTime=Tue Dec 09 06:08:00 CST 2014, time=2014-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26364, encodeId=2a8e26364ee, content=非常好非常好, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 16:34:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1901255, encodeId=c7ee19012553b, content=<a href='/topic/show?id=c097591ed5' target=_blank style='color:#2F92EE;'>#Diabetes#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5917, encryptionId=c097591ed5, topicName=Diabetes)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0045169, createdName=木头人513, createdTime=Mon Mar 16 05:08:00 CST 2015, time=2015-03-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1759507, encodeId=541b1e595071c, content=<a href='/topic/show?id=9bea33520d' target=_blank style='color:#2F92EE;'>#BET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3352, encryptionId=9bea33520d, topicName=BET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a1a37427546, createdName=ms5439512287675881, createdTime=Thu May 21 13:08:00 CST 2015, time=2015-05-21, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1636969, encodeId=665f16369692a, content=<a href='/topic/show?id=afda591646' target=_blank style='color:#2F92EE;'>#DIA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5916, encryptionId=afda591646, topicName=DIA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=987022654425, createdName=ms9608593228839890, createdTime=Sun Sep 27 04:08:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2007115, encodeId=a0bf200e11521, content=<a href='/topic/show?id=2f9e8133019' target=_blank style='color:#2F92EE;'>#肝糖原#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81330, encryptionId=2f9e8133019, topicName=肝糖原)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85df2500173, createdName=654699882_84926986, createdTime=Tue Dec 09 06:08:00 CST 2014, time=2014-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26364, encodeId=2a8e26364ee, content=非常好非常好, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 16:34:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1901255, encodeId=c7ee19012553b, content=<a href='/topic/show?id=c097591ed5' target=_blank style='color:#2F92EE;'>#Diabetes#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5917, encryptionId=c097591ed5, topicName=Diabetes)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0045169, createdName=木头人513, createdTime=Mon Mar 16 05:08:00 CST 2015, time=2015-03-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1759507, encodeId=541b1e595071c, content=<a href='/topic/show?id=9bea33520d' target=_blank style='color:#2F92EE;'>#BET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3352, encryptionId=9bea33520d, topicName=BET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a1a37427546, createdName=ms5439512287675881, createdTime=Thu May 21 13:08:00 CST 2015, time=2015-05-21, status=1, ipAttribution=)]
    2015-06-08 ljjj1053

    非常好非常好

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1636969, encodeId=665f16369692a, content=<a href='/topic/show?id=afda591646' target=_blank style='color:#2F92EE;'>#DIA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5916, encryptionId=afda591646, topicName=DIA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=987022654425, createdName=ms9608593228839890, createdTime=Sun Sep 27 04:08:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2007115, encodeId=a0bf200e11521, content=<a href='/topic/show?id=2f9e8133019' target=_blank style='color:#2F92EE;'>#肝糖原#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81330, encryptionId=2f9e8133019, topicName=肝糖原)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85df2500173, createdName=654699882_84926986, createdTime=Tue Dec 09 06:08:00 CST 2014, time=2014-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26364, encodeId=2a8e26364ee, content=非常好非常好, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 16:34:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1901255, encodeId=c7ee19012553b, content=<a href='/topic/show?id=c097591ed5' target=_blank style='color:#2F92EE;'>#Diabetes#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5917, encryptionId=c097591ed5, topicName=Diabetes)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0045169, createdName=木头人513, createdTime=Mon Mar 16 05:08:00 CST 2015, time=2015-03-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1759507, encodeId=541b1e595071c, content=<a href='/topic/show?id=9bea33520d' target=_blank style='color:#2F92EE;'>#BET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3352, encryptionId=9bea33520d, topicName=BET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a1a37427546, createdName=ms5439512287675881, createdTime=Thu May 21 13:08:00 CST 2015, time=2015-05-21, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1636969, encodeId=665f16369692a, content=<a href='/topic/show?id=afda591646' target=_blank style='color:#2F92EE;'>#DIA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5916, encryptionId=afda591646, topicName=DIA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=987022654425, createdName=ms9608593228839890, createdTime=Sun Sep 27 04:08:00 CST 2015, time=2015-09-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2007115, encodeId=a0bf200e11521, content=<a href='/topic/show?id=2f9e8133019' target=_blank style='color:#2F92EE;'>#肝糖原#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81330, encryptionId=2f9e8133019, topicName=肝糖原)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=85df2500173, createdName=654699882_84926986, createdTime=Tue Dec 09 06:08:00 CST 2014, time=2014-12-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26364, encodeId=2a8e26364ee, content=非常好非常好, beContent=null, objectType=article, channel=null, level=null, likeNumber=166, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 16:34:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1901255, encodeId=c7ee19012553b, content=<a href='/topic/show?id=c097591ed5' target=_blank style='color:#2F92EE;'>#Diabetes#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5917, encryptionId=c097591ed5, topicName=Diabetes)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0045169, createdName=木头人513, createdTime=Mon Mar 16 05:08:00 CST 2015, time=2015-03-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1759507, encodeId=541b1e595071c, content=<a href='/topic/show?id=9bea33520d' target=_blank style='color:#2F92EE;'>#BET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3352, encryptionId=9bea33520d, topicName=BET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a1a37427546, createdName=ms5439512287675881, createdTime=Thu May 21 13:08:00 CST 2015, time=2015-05-21, status=1, ipAttribution=)]

相关资讯

Schizophr Bull:抗精神病药所致肥胖的药物干预优化策略

随着抗精神病药物的广泛应用,许多临床医生和研究者发现抗精神病药物能够引起很多代谢方面的副反应,包括肥胖,高血脂,高血糖,胰岛素抵抗,代谢综合症等。 第二代抗精神病药物对体重增加及糖脂代谢紊乱的影响明显高于第一代抗精神病药物,而这其中以奥氮平和氯氮平表现尤为明显。抗精神病药物所致的代谢紊乱常常难以控制。同期联用适当药物来抵消这些紊乱不失为一个理性的选择。对同期伴随药物的选择一直众说纷纭,尚存

美国人对肥胖的观念不断转变

近日,在2014年肥胖协会年度会议周上,一项最新研究评估了在过去一年里美国公众和医疗专业人员对肥胖的相关认知度,肥胖作为一种社区健康风险问题和食品及个体长期不活动直接相关;对于美国成年人来讲,其概念中已经抛弃了认为肥胖是由于个人不良生活习惯选择引发的个人问题的观点,而医疗专业人员依然认为肥胖是由于个人不良的生活习惯选择而引发的。 研究者Ted Kyle表示,尽管肥胖在美国和全球的流行率非常之

JAMA Pediatr:婴儿期服用抗生素导致儿童肥胖

儿童或成人患肥胖,都会产生巨大的健康负担。婴儿时期,是环境因素产生持久肥胖风险的关键时期。因此,明确这些可能的因素,有助于针对性的降低今后肥胖的风险。宾夕法尼亚州费城儿童医院儿科医生贝利·L·查尔斯(Bailey L Charles )与其同事认为婴儿期间服用广谱抗生素,可能与其儿童时期患肥胖相关,并进行了调查研究。相关论文于9月29日,发表于《美国医学会杂志·儿科学》(JAMA Pediatr)

马向华:从源头干预肥胖 积极防治妊娠糖尿病

妊娠期间合并血糖升高的原因是多种多样的。一种为妊娠前已确诊为糖尿病,称“糖尿病合并妊娠”;另一种为妊娠前糖代谢正常,妊娠过程中初次发现的任何程度的糖耐量异常。2013年WHO又将后一种情况细分为二个亚类。第一个亚类为“妊娠期间的糖尿病(Diabetes Mellitus in Pregnancy)”,诊断标准等同于 WHO1999年糖尿病的诊断标准,

Lancet Diab & Endo:减重术降低2型糖尿病的发生率

目前,许多肥胖症患者接受减重术,但是尚不清楚减重术是否影响糖尿病的进程,近期,研究人员在大规模的肥胖症患者人群中评估了减重手术对2型糖尿病的影响。 研究方法: 基于英国家庭医疗数据库,研究人员针对成年肥胖人群(年龄20-100岁,BMI≥30 kg/m2)进行配对横断面研究。研究人员招募2167名自2002年1月1日至2014年4月30日期间接受减重术的肥胖患者,并根据BMI、年龄、性别、糖

The Lancet:降压治疗对心血管系统的保护作用与体重指数无关

既往研究表明,相对于正常人群,肥胖患者的降压治疗对心血管系统的保护作用可能取决于药物的选择。研究人员按体重指数(BMI)分类人群后,评估了不同的降压治疗方案对心血管事件的影响。 研究方法: 研究人员自Blood Pressure Lowering Treatment Trialists' Collaboration临床试验收集患者的个人信息,并比较了不同的降压治疗方案对所有重要的心血管

Baidu
map
Baidu
map
Baidu
map