Differential responses in immunoreactive arginine-vasopressin content of microdissected brain regions during passive avoidance behavior.
Immunoreactive arginine-vasopressin (IR-AVP) was measured in various hypothalamic and extrahypothalamic nuclei of male Wistar rats immediately after the 24 h retention test of a passive avoidance response. IR-AVP concentrations in paraventricular, suprachiasmatic and lateral septal nuclei were significantly decreased in comparison with the non-shocked rats, while IR-AVP was increased in the central amygdala nucleus, subfornical organ and locus coeruleus. No significant differences in IR-AVP levels were found in the habenular and periventricular hypothalamic nucleus, organum vasculosum of lamina terminalis and medial and dorsal raphe nucleus.
D000818:Animals; D001127:Arginine Vasopressin / Q000378:metabolism*; D001362:Avoidance Learning / Q000502:physiology*; D001921:Brain / Q000378:metabolism*; D001933:Brain Stem / Q000378:metabolism; D007031:Hypothalamus / Q000378:metabolism; D008032:Limbic System / Q000378:metabolism; D008297:Male; D008636:Mesencephalon / Q000378:metabolism; D011863:Radioimmunoassay; D051381:Rats; D011919:Rats, Inbred Strains
D001127:Arginine Vasopressin