R J Orts

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The interaction of arginine vasotocin (AVT) and norepinephrine (NE) upon pineal gland indoleamine synthesis was investigated. Rat pineal glands were incubated for 10 h in Krebs--Ringer bicarbonate plus 2 mg/ml glucose, 1 mg/ml bovine serum albumin, [14C]tryptophan, NE (10(-6) M), and log doses of AVT ranging from 100 ng to 10 microgram. Incubation media(More)
Studies were performed to determine the effects of neurotransmitters on arginine vasotocin (AVT) release in vitro. Rat pineal glands were incubated with 10(-8)M or 10(-6)M norepinephrine (NE), dopamine (DA), serotonin (5HT), and acetylcholine (ACH) for eight h after which the concentrations of AVT in the media were determined by radioimmunoassay. With the(More)
Administration of the bovine pineal peptide threonylseryllysine (TSL) to unilaterally ovariectomized (UO) mice as a single intraperitoneal injection on the day of UO reduced the 5-day compensatory ovarian hypertrophy. The same dose of TSL (175 ng/animal) significantly (p less than 0.01) reduced serum follicle stimulating hormone (FSH) in UO mice 24 h after(More)
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