Central cholinergic control of vasopressin release in conscious rats

Journal Article · Fri Aug 01 00:00:00 EDT 1986 · Am. J. Physiol.; (United States)

OSTI ID:6294189

Iitake, K; Share, L; Ouchi, Y; Crofton, J T; Brooks, D P

Intracerebroventricular (icv) administration of carbachol into conscious rats evoked a substantial increase in vasopressin secretion and blood pressure in a dose-dependent manner. These effects were blocked by pretreatment with the muscarinic blocker, atropine (10 g icv), but not by the nicotinic blocker, hexamethonium (10 g icv). Hexamethonium did, however, block the increase in blood pressure, the decrease in heart rate, and they very small elevation in the plasma vasopressin concentration induced by nicotine (10 g icv). These results indicate that stimulation of either central nicotinic or muscarinic receptors can affect the cardiovascular system and suggest that the cholinergic stimulation of vasopressin secretion may involve primarily muscarinic receptors in the conscious rat.

• Research Organization: Univ. of Tennessee, Memphis
• OSTI ID: 6294189
• Journal Information: Am. J. Physiol.; (United States), Vol. 251:2
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
59 BASIC BIOLOGICAL SCIENCES
RATS
PHYSIOLOGY
VASOPRESSIN
RADIOIMMUNOASSAY
SECRETION
ACETYLCHOLINE
ATROPINE
BLOOD PRESSURE
IODINE 125
RECEPTORS
ALKALOIDS
AMINES
AMMONIUM COMPOUNDS
ANIMALS
AUTONOMIC NERVOUS SYSTEM AGENTS
BETA DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DRUGS
ELECTRON CAPTURE RADIOISOTOPES
ESTERS
HORMONES
IMMUNOASSAY
IMMUNOLOGY
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
MAMMALS
NEUROREGULATORS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PARASYMPATHOLYTICS
PARASYMPATHOMIMETICS
PEPTIDE HORMONES
PITUITARY HORMONES
QUATERNARY COMPOUNDS
RADIOASSAY
RADIOIMMUNOLOGY
RADIOISOTOPES
RODENTS
TRACER TECHNIQUES
VERTEBRATES
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