[Activities of enzymes synthesizing catecholamines in areas of the brain stem in sudden infant death].
In victims of Sudden Infant Death Syndrome, the activity of phenylethanolamine-N-methyltransferase was found to decrease in the nucleus retroambigu, the Kolliker-Fuse nucleus and the C 2 area of medulla, whereas a decrease in the dopamine-beta-hydroxylase activity was found only in the C 2 area. These results suggest a hypoactivity of adrenergic neurons in respiratory and cardiac centres in the Sudden Infant Death Syndrome.
D000320:Adrenergic Fibers / Q000503:physiopathology; D001933:Brain Stem / Q000201:enzymology*; D004299:Dopamine beta-Hydroxylase / Q000378:metabolism*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010625:Phenylethanolamine N-Methyltransferase / Q000378:metabolism*; D013398:Sudden Infant Death
D004299:Dopamine beta-Hydroxylase; D010625:Phenylethanolamine N-Methyltransferase
Activités des enzymes de synthèse des catécholamines dans des régions du tronc cérébral au cours de la mort subite du nourrisson.