Scientists say it is quite likely the serotonin transporter gene, in combination with other defective genes, contributes to depression.

科学家说，它很可能是五羟色胺转运体基因与其他基因缺陷相结合，有助于抑郁症。

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The study will be the first to measure which variant a teenager has of the serotonin transporter gene, which is responsible for our uptake of "feel-good" serotonin and mood control.

研究组还将首次测试青年人拥有那种转胺基因（对吸收让心情转好的胺和控制情绪起首要作用）。

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Objective To investigate the association of the polymorphism of serotonin transporter gene linked polymorphic(5-HTTLPR) region with depression and its clinical symptoms in the Han Chinese.

目的探讨中国汉族人群5-羟色胺转运体基因连锁多态性区域（5-HTTLPR）与抑郁症及临床特征的相关性。

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They report finding no link between the serotonin transporter gene and the risk of depression.

VOA: special.2009.06.24

The gene is a transporter of serotonin, a brain chemical involved with mood and desire for food.

VOA: special.2009.06.24

The serotonin-transporter gene comes in two functional variants long and short.

ECONOMIST: The genetics of happiness

That some populations have more of the long version of the serotonin-transporter gene has been noticed before, though the association has previously been made at a national, rather than a racial, level.

ECONOMIST: The genetics of happiness

One of the researchers, Jan-Emmanuel De Neve, of University College, London, and the London School of Economics, has tried to do just that, by picking a popular suspect the gene that encodes the serotonin-transporter protein, a molecule that shuffles a brain messenger called serotonin through cell membranes and examining how variants of that gene affect levels of happiness.

ECONOMIST: The genetics of happiness