title: Adrenergic hyperactivity of the aganglionic colon.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003106:Colon / Q000032:analysis / Q000294:innervation*; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D008297:Male; D008531:Megacolon / Q000473:pathology* / Q000503:physiopathology; D008856:Microscopy, Fluorescence; D009638:Norepinephrine / Q000032:analysis; D011941:Receptors, Adrenergic; D013564:Sympathetic Nervous System / Q000473:pathology*
chemical_list: D011941:Receptors, Adrenergic; D009638:Norepinephrine