Acetylcholinesterase and choline acetyltransferase activity in some hypothalamic nuclei under immobilization stress in rats.
Rats were subjected to acute immobilization (IMO) for 1 or 2 h and killed by decapitation. The hypothalamic supraoptic and paraventricular nuclei were isolated by dissection technique and the activity of acetylcholinesterase (AChE) and choline acetyltransferase (ChAT) was assayed. A period of 1 or 2 h of IMO resulted in a significant increase of AChE activity only in the supraoptic nucleus, while no change of ChAT activity occurred. Acute IMO of 1 or 2 h duration resulted in an increase of AChE activity in supraoptic nucleus.
Fatranská
M
M
Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Czechoslovakia.
Kiss
A
A
Oprsalová
Z
Z
Kvetnanský
R
R
D000110:Acetylcholinesterase / Q000378:metabolism*; D000818:Animals; D002795:Choline O-Acetyltransferase / Q000378:metabolism*; D007103:Immobilization; D008297:Male; D010286:Paraventricular Hypothalamic Nucleus / Q000201:enzymology*; D051381:Rats; D011919:Rats, Inbred Strains; D013312:Stress, Physiological / Q000201:enzymology*; D013495:Supraoptic Nucleus / Q000201:enzymology*
D002795:Choline O-Acetyltransferase; D000110:Acetylcholinesterase