TY - JOUR
T1 - Plasma levels of catechols after fasting in intact or adrenal-demedullated rats
AU - Garty, Moshe
AU - Deka-Starosta, Anna
AU - Stull, Robin
AU - Kopin, Irwin J.
AU - Goldstein, David S.
PY - 1989/3
Y1 - 1989/3
N2 - We compared arterial plasma levels of catechols after a 24-h fast with levels after 24 h of an ad libitum diet in conscious rats. Epinephrine concentrations were significantly decreased after the fast; levels of norepinephrine, dopa, and dihydroxyphenylglycol were unaffected. Adrenal-demedullated rats had decreased levels of dopa regardless of dietary intake and lower levels of norepinephrine after fasting than during the usual diet. The results indicate that fasting decreases adrenomedullary activity in intact animals, with little or no effect on sympathoneural activity.
AB - We compared arterial plasma levels of catechols after a 24-h fast with levels after 24 h of an ad libitum diet in conscious rats. Epinephrine concentrations were significantly decreased after the fast; levels of norepinephrine, dopa, and dihydroxyphenylglycol were unaffected. Adrenal-demedullated rats had decreased levels of dopa regardless of dietary intake and lower levels of norepinephrine after fasting than during the usual diet. The results indicate that fasting decreases adrenomedullary activity in intact animals, with little or no effect on sympathoneural activity.
KW - Dihydroxyphenylglycol
KW - Dopa
KW - Epinephrine
KW - Fasting
KW - Norepinephrine
KW - Sympathetic nervous system
UR - http://www.scopus.com/inward/record.url?scp=0024517546&partnerID=8YFLogxK
U2 - 10.1016/0165-1838(89)90167-7
DO - 10.1016/0165-1838(89)90167-7
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C2 - 2723338
AN - SCOPUS:0024517546
SN - 0165-1838
VL - 26
SP - 181
EP - 184
JO - Journal of the Autonomic Nervous System
JF - Journal of the Autonomic Nervous System
IS - 2
ER -