Abstract：
:Immunoreactive (ir) beta-endorphin (b-END) and dynorphin (DYN) in rat brain and pituitary were measured after food and water deprivation and from brains taken during either day or night. In other rats, eating and drinking were measured following lesions in the arcuate n. Ir-DYN levels are higher in hypothalamus and lower in pituitary at night. Deprivation, particularly water deprivation, increases hypothalamic, day-time ir-DYN. Water deprivation decreases pituitary levels of ir-DYN. Arcuate-lesions, depleting both ir-b-END and ir-DYN, do not modify total daily intake of water or food but does modify circadian rhythmicity of eating and drinking. These data support the conclusion that b-END and DYN are involved in maintaining day-night patterns of eating and drinking.
journal_name
Life Scijournal_title
Life sciencesauthors
Reid LD,Konecka AM,Przewłocki R,Millan MH,Millan MJ,Herz Adoi
10.1016/0024-3205(82)90221-1subject
Has Abstractpub_date
1982-10-18 00:00:00pages
1829-32issue
16-17eissn
0024-3205issn
1879-0631pii
0024-3205(82)90221-1journal_volume
31pub_type
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