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Closing the distance on obesity culprits

机译:缩小肥胖元凶的距离

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摘要

Genome-wide association studies have identified more than 75 locations in the human genome at which changes in DNA sequence are linked to obesity and traits closely related to the condition, such as body mass index. In these studies, single nucleotide changes in a non-protein-coding region (an intron) of the gene FTO often have the strongest association with obesity. It is generally thought that this association arises because of a genetic defect that alters the function or expression level of FTO, which encodes an enzyme known to be involved in the control of body weight and metabolism in mice. However, evidence of a direct link between the single nucleotide changes and alteration of FTO function or expression level has been lacking. In this issue, Smemo et al. (page 371) present compelling evidence that the association between obesity and FTO actually involves another gene called IRX3, which encodes a transcription factor involved in multiple developmental processes.
机译:全基因组关联研究已经确定了人类基因组中超过75个位置,在这些位置DNA序列的变化与肥胖和与病情密切相关的性状(例如体重指数)相关。在这些研究中,基因FTO的非蛋白质编码区(内含子)中的单核苷酸变化通常与肥胖最相关。通常认为这种联系是由于遗传缺陷改变了FTO的功能或表达水平而引起的,FTO编码一种已知参与小鼠体重和代谢控制的酶。但是,缺乏单核苷酸变化与FTO功能或表达水平改变之间直接联系的证据。在本期中,Smemo等人。 (第371页)提供了令人信服的证据,表明肥胖与FTO之间的关联实际上涉及另一个名为IRX3的基因,该基因编码参与多个发育过程的转录因子。

著录项

  • 来源
    《Nature》 |2014年第7492期|309-310|共2页
  • 作者

    DAVID U. GORKIN; BING REN;

  • 作者单位

    Ludwig Institute for Cancer Research, La Jolla, California 92093, USA;

    Ludwig Institute for Cancer Research, La Jolla, California 92093, USA,Department of Cellular and Molecular Medicine, University of California, La Jolla, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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