Electrical stimulation of the hypothalamic nucleus paraventricularis mimics the effects of light on pineal melatonin synthesis
Journal Article
·
· Life Sci.; (United States)
In an attempt to clarify further the role of the hypothalamic paraventricular nuclei (PVN) in the control of pineal function, the effects of 2 min electrical stimulation of these nuclei were investigated in acutely blinded, adult, male Sprague-Dawley rats. Pineal serotonin-N-acetyltransferase (NAT) activity, melatonin content and catecholamine levels were measured by means of radio-enzymatic, radioimmunoassay and high-performance liquid-chromatography methods, respectively. All three pineal parameters underwent significant declines following brief PVN stimulation during the night time. These observations lend credence to the view that the neural pathways transmitting light information to the sympathetic innervation controlling pineal melatonin synthesis. 22 references, 1 figure.
- Research Organization:
- Gutenberg Universitaet, Mainz, West Germany
- OSTI ID:
- 6937706
- Journal Information:
- Life Sci.; (United States), Journal Name: Life Sci.; (United States) Vol. 40:5; ISSN LIFSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550201* -- Biochemistry-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
AMINES
ANIMALS
AROMATICS
AZAARENES
AZOLES
BIOLOGICAL PATHWAYS
BIOSYNTHESIS
BODY
CATECHOLAMINES
CELL CONSTITUENTS
CELL NUCLEI
CHROMATOGRAPHY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTROPHYSIOLOGY
ENZYMES
GLANDS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
IMMUNOASSAY
IMMUNOLOGY
INDOLES
ISOTOPE APPLICATIONS
ISOTOPES
LIQUID COLUMN CHROMATOGRAPHY
MAMMALS
MELATONIN
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANS
PHENOLS
PHYSICAL PROPERTIES
PHYSIOLOGY
PINEAL GLAND
POLYPHENOLS
PYRROLES
RADIATIONS
RADIOASSAY
RADIOENZYMATIC ASSAY
RADIOIMMUNOASSAY
RADIOIMMUNOLOGY
RADIOISOTOPES
RATS
RODENTS
SEPARATION PROCESSES
SYNTHESIS
TRACER TECHNIQUES
TRANSFERASES
TRYPTAMINES
VERTEBRATES
VISIBLE RADIATION
59 BASIC BIOLOGICAL SCIENCES
AMINES
ANIMALS
AROMATICS
AZAARENES
AZOLES
BIOLOGICAL PATHWAYS
BIOSYNTHESIS
BODY
CATECHOLAMINES
CELL CONSTITUENTS
CELL NUCLEI
CHROMATOGRAPHY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTROPHYSIOLOGY
ENZYMES
GLANDS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
IMMUNOASSAY
IMMUNOLOGY
INDOLES
ISOTOPE APPLICATIONS
ISOTOPES
LIQUID COLUMN CHROMATOGRAPHY
MAMMALS
MELATONIN
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANS
PHENOLS
PHYSICAL PROPERTIES
PHYSIOLOGY
PINEAL GLAND
POLYPHENOLS
PYRROLES
RADIATIONS
RADIOASSAY
RADIOENZYMATIC ASSAY
RADIOIMMUNOASSAY
RADIOIMMUNOLOGY
RADIOISOTOPES
RATS
RODENTS
SEPARATION PROCESSES
SYNTHESIS
TRACER TECHNIQUES
TRANSFERASES
TRYPTAMINES
VERTEBRATES
VISIBLE RADIATION