Assertion: acetylcholine's effect | /r/RelatedTo | abnormality
Facets:
value: in neurotransmitter system function
type: OTHER
value: in brain metabolism
type: OTHER
Source sentences:
text: In animal studies that resulted in birth defects, researchers found that nicotine negatively affects fetal brain development and pregnancy outcomes; the negative effects on early brain development are associated with abnormalities in brain metabolism and neurotransmitter system function.