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Department of Psychiatry, University of Cincinnati Genome Research Institute, Cincinnati, Ohio 45237, USA.
Nature. 2004 Jul 8;430(6996):1 p following 165; discussion 2 p following 165. doi: 10.1038/nature02665.
Batterham et al. report that the gut peptide hormone PYY3-36 decreases food intake and body-weight gain in rodents, a discovery that has been heralded as potentially offering a new therapy for obesity. However, we have been unable to replicate their results. Although the reasons for this discrepancy remain undetermined, an effective anti-obesity drug ultimately must produce its effects across a range of situations. The fact that the findings of Batterham et al. cannot easily be replicated calls into question the potential value of an anti-obesity approach that is based on administration of PYY3-36.
巴特哈姆等人报告称,肠道肽激素PYY3 - 36可减少啮齿动物的食物摄入量和体重增加,这一发现被誉为可能为肥胖症提供一种新的治疗方法。然而,我们无法重复他们的结果。尽管这种差异的原因尚未确定,但一种有效的抗肥胖药物最终必须在一系列情况下产生效果。巴特哈姆等人的研究结果难以轻易重复这一事实,使人对基于施用PYY3 - 36的抗肥胖方法的潜在价值产生质疑。