高级搜索
立即登录 | 免费注册
当前位置 >   首页 > 期刊文献 > 全球精选文摘 > 文摘导读
已酮糖激酶依赖性果糖代谢可诱导邻近管状细胞中的促炎介质
Ketohexokinase-Dependent Metabolism of Fructose Induces Proinflammatory Mediators in Proximal Tubular Cells
Cirillo P, Gersch MS, Mu W  2010/9/14 9:51:09 
【发表评论】 【全球专家评论】
打印| 推荐给好友
J Am Soc Nephrol, 2009,
专家评级：
★★
循证评级：
A
      View at Publisher
Increased consumption of fructose may play an important role in the epidemic of metabolic syndrome and may presage the development of diabetes, cardiovascular disease, and chronic kidney disease. Once in the cell, fructose is phosphorylated by ketohexokinase (KHK), leading to consumption of ATP, formation of AMP, and generation of uric acid through xanthine oxidoreductase (XOR). This study aimed to examine the direct effects of fructose in human kidney proximal tubular cells (HK-2) and whether they are mediated by the fructose metabolism via KHK. At a similar concentration to that observed in peripheral blood after a meal, fructose induced production of monocyte chemotactic protein 1 (MCP-1) and reactive oxygen species in HK-2 cells. Knockdown of KHK by stable transfection with small hairpin RNA demonstrated that these processes were KHK dependent. Several antioxidants, including specific inhibitors of NADPH oxidase and XOR, prevented MCP-1 secretion. We detected XOR mRNA in HK-2 cells and confirmed its activity by identifying uric acid by mass spectrometry. Fructose increased intracellular uric acid, and uric acid induced production of MCP-1 as well. In summary, postprandial concentrations of fructose stimulate redox- and urate-dependent inflammatory mediators in proximal tubular cells.
  评论

请登录后发表评论，点击此处登录。

疾病资源中心  疾病资源中心
病例分析 <span class="ModTitle_Intro_Right" id="EPMI_Home_MedicalCases_Intro_div" onclick="javascript:window.location='http://www.elseviermed.cn/tabid/127/Default.aspx'" onmouseover="javascript:document.getElementById('EPMI_Home_MedicalCases_Intro_div').style.cursor='pointer';document.getElementById('EPMI_Home_MedicalCases_Intro_div').style.textDecoration='underline';" onmouseout="javascript:document.getElementById('EPMI_Home_MedicalCases_Intro_div').style.textDecoration='none';">[栏目介绍]</span>  病例分析 [栏目介绍]
甲状腺功能亢进合并黄疸

 王燕燕 王曙

上海交通大学附属瑞金医院内分泌科

患者，女，69岁。2009年1月无明显诱因下出现乏力，当时程度较轻，未予以重视。2009年3月患者乏力症状加重，尿色逐渐加深，大便习惯改变，颜色变淡。4月18日入我院感染科治疗，诉轻度头晕、心慌，体重减轻10kg。无肝区疼痛，无发热，无腹痛、腹泻、腹胀、里急后重，无恶性、呕吐等。入院半月前于外院就诊，查肝功能：ALT 601IU/L，AST 785IU/L，TBIL 97.7umol/L，白蛋白 41g/L，甲状腺功能：游离T3 30.6pmol/L，游离T4 51.9pmol/L，心电图示快速房颤。
 

更多>>>
医学数据库  医学数据库



友情链接：中文版柳叶刀 | MD CONSULT | Journals CONSULT | Procedures CONSULT | eClips CONSULT | Imaging CONSULT | 论文吧 | 世界医学书库 | 医心网 | 前沿医学资讯网

公司简介 | 用户协议 | 条件与条款 | 隐私权政策 | 网站地图 | 联系我们

 互联网药品信息服务资格证书 | 卫生局审核意见通知书 | 药监局行政许可决定书 
电信与信息服务业务经营许可证 | 京ICP证070259号 | 京ICP备09068478号

Copyright © 2009 Elsevier.  All Rights Reserved.  爱思唯尔版权所有