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

VOA: special.2009.06.24

Enzymes, thyroid, etc., the abs, the serotonin, you can pick some part of the body.

比如,酶,甲状腺素等等,还有生物素,血清素,你也可以选择身体的某一部位来写

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

At present,doctors cannot measure the amount of serotonin in a living baby's brain.

VOA: standard.2010.02.08

The latest research focuses on serotonin, a chemical in the brain.

VOA: standard.2010.02.08

In studying babies' brains, the researchers found that babies who died of SIDS had 25 percent less serotonin and related chemicals than the babies who died of other causes.

VOA: standard.2010.02.08

"We found that the babies who died of SIDS had abnormalities in serotonin in regions of the brain stem that control breathing and heart rate and blood pressure during sleep."

VOA: standard.2010.02.08