Moms’ Gastric Bypass Surgeries Could Benefit Children


(Image source: The Verge) BY JOHN O’CONNOR A new study reveals overweight mothers who’ve
had gastric bypass surgery could pass on genetic advantages to their children. According to the small study published in
PNAS, researchers tracked 20 women who each lost at least 100 pounds after gastric bypass
surgery, along with their children. “In their analysis, the investigators identified
significant genetic differences between children born after the surgery and their brothers
or sisters who were born before.” (Via Medical News Today) 5,698 genetic differences, to be exact. Many
of the affected genes are thought to be involved in heart health and metabolism, two major
health factors that contribute to obesity. Those studied — whose average age was 15
— tended to have healthier blood pressure, weight and insulin levels than their siblings
born before their mother had weight-loss surgery. (Via Healthline) The Verge explains the findings contribute
to a growing body of research supporting epigenetic inheritance, a phenomenon where parents pass
on new traits to their offspring without alterations to their own genetic structure. “Compelling as it is, this latest research
leaves plenty of questions unanswered. For one, it didn’t evaluate whether weight loss
itself, as opposed to weight loss surgery, is behind the phenomenon.”

4 comments

  1. I wanna know how the large the study is and how it was designed. You gonna need women who gave birth while overweight and the same group of women who gave another birth post-gastric bypass surgery.

  2. Even if the difference is real, that doesn't mean it's epi-genetic, and it probably isn't.

    Fetal development in the womb has lots of impacts on later life, and quite possibly on the infant's DNA folding itself. The womb of a obese woman is obviously a different environment than a healthy weight woman, as the fat has a hormonal contribution to the shared bloodstream environment.

    If you wanted to prove an epi-genetic link you should have studied the fathers.

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