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31/07/2015
The study from the Medical Research Council’s Clinical Sciences Centre at Imperial College London and is based on fruit flies.
Previous studies have shown that the intestines of many mammals grow during pregnancy, but it has not been clear exactly why this happens.
The study shows that a hormone released during pregnancy in fruit flies, which have similar metabolic responses to humans, causes the intestine to grow dramatically and stimulate the mother’s body to store more fat.
The research reveals that a fly hormone, called 'juvenile hormone', triggers the changes to the intestine and fat metabolism.
The hormone acts in a similar way to human thyroid hormones, which regulate the body's energy demands.
Scientists had previously thought that a woman’s appetite changed in response to the baby’s increasing demands for energy.
However, the researchers found that levels of juvenile hormone begin to rise in female flies surprisingly early, in fact immediately after mating.
RCOG president David Richmond said that it was a myth that extra calories were needed in the first two trimesters.
He said: "It is only in the last 12 weeks that women need an extra 200 calories a day."
(CD)
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Eating For Two During Pregnancy Is Not Needed - Study
Eating for two during pregnancy is not needed, according to a new study.The study from the Medical Research Council’s Clinical Sciences Centre at Imperial College London and is based on fruit flies.
Previous studies have shown that the intestines of many mammals grow during pregnancy, but it has not been clear exactly why this happens.
The study shows that a hormone released during pregnancy in fruit flies, which have similar metabolic responses to humans, causes the intestine to grow dramatically and stimulate the mother’s body to store more fat.
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The research reveals that a fly hormone, called 'juvenile hormone', triggers the changes to the intestine and fat metabolism.
The hormone acts in a similar way to human thyroid hormones, which regulate the body's energy demands.
Scientists had previously thought that a woman’s appetite changed in response to the baby’s increasing demands for energy.
However, the researchers found that levels of juvenile hormone begin to rise in female flies surprisingly early, in fact immediately after mating.
RCOG president David Richmond said that it was a myth that extra calories were needed in the first two trimesters.
He said: "It is only in the last 12 weeks that women need an extra 200 calories a day."
(CD)
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