Autism in girls linked to grandmothers who SMOKED during pregnancy reveals new research

The research team found that girls whose maternal grandmothers smoked during pregnancy had a 67 percent likelihood of exhibiting autis related traits such as repetitive behaviors and poor social communication skills. The experts also noted that the risk of being diagnosed with autism increased by 53 percent in girls whose maternal grandmothers smoked. In terms of mechanisms, there are two broad possibilities. There is DNA damage that is transmitted to the grandchildren or there is some adaptive response to the smoking that leaves the grandchild more vulnerable to ASD.

Key Takeaways:

  • The findings suggested that girls exposed to cigarette smoke while still in the womb may undergo negative changes in the developing eggs, which in turn can be carried over to her own children.
  • We have no explanation for the sex difference, although we have previously found that grand-maternal smoking is associated with different growth patterns in grandsons and granddaughters.
  • The study revealed that about 13 percent of mothers smoked during pregnancy, while 11 percent of the mothers of children with autism reported smoking during pregnancy.

“The findings suggested that girls exposed to cigarette smoke while still in the womb may undergo negative changes in the developing eggs, which in turn can be carried over to her own children.”

http://www.naturalnews.com/2017-05-09-autism-in-girls-linked-to-grandmothers-who-smoked-during-pregnancy-reveals-new-research.html