Effect of water deprivation of plasma radioimmunoassayable arginine vasotocin in conscious chickens (Gallus domesticus).
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Animals↗
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Results for “VASOTOCIN”
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The spawning reflex response of the killifish, Fundulus heteroclitus: isotocin is relatively inactive in comparison with arginine vasotocin.
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Animals↗
Immunocytochemical localization of vasotocin and isotocin in the preopticohypophysial neurosecretory system of teleosts.
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Animals↗
An immunocytochemical investigation for arginine vasotocin and neurophysin in the pituitary gland and the caudal neurosecretory system of Catostomus commersoni.
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Animals↗
Shell gland responsiveness to prostaglandins F2alpha and E1 and to arginine vasotocin during the laying cycle of the domestic hen (Gallus domesticus).
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Effect of saline infusion on plasma immunoreactive vasotocin in conscious chickens (Gallus domesticus).
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A preliminary comparative immunohistochemical, radioimmunological, and biological study of arginine vasotocin (AVT) in the pineal gland and urophysis of some teleostei.
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Animals↗
Stimulation of parturition in a viviparous lizard (Sceloporus jarrovi) by arginine vasotocin.
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Animals↗
The demonstration of neurophysin and arginine vasotocin by immunocytochemical methods in the brain and pituitary gland of the platyfish, Xiphophorus maculatus.
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The effects of arginine vasotocin and various microtubular poisons on water transfer and sodium transport across the pelvic skin of the toad Bufo boreas in vitro.
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Animals↗
A specific and sensitive bioassay for arginine-vasotocin: description, validation, and some applications in lower and higher vertebrates.
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Amphibians↗
Inhibition of the antimetamorphic action of prolactin in larval Ambystoma tigrinum by lysine vasopressin, arginine vasotocin, and aldosterone.
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Aldosterone↗
Radioimmunoassay of arginine vasotocin and mesotocin in serum of the frog Rana ridibunda.
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Animals↗
Vasotocin, prostaglandin, and female reproductive behavior in the frog, Rana pipiens.
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Animals↗
Duration of androgen treatment modifies behavioral response to arginine vasotocin in Taricha granulosa.
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Animals↗
Chemical differences between bovine pineal antigonadotropin and arginine vasotocin.
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Amino Acids↗
Influence of arginine vasotocin on the estrogen-induced surge of LH and FSH in adult ovariectomized rats.
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Diurnal variations in plasma arginine vasotocin (AVT) concentrations in the ovine fetus.
Previously we have demonstrated the presence of AVT in the blood of fetal sheep. The source is not clear, but AVT has been identified in fetal pineal and pituitary glands. In view of the circadian secretory pattern of the pineal gland, we questioned whether fetal plasma AVT levels might vary diurnally. Plasma samples from five chronically catheterized ovine maternal ewes and fetal lambs 129-135 days' gestation were obtained at 3-19 hourly intervals for 1-2 days (mean +/- S.E.M. = 35 +/- 6 hours. Plasma AVT levels were determined by radioimmunoassay. Results were analyzed by nonlinear curve fitting procedures to relate hormone levels with time of day. Plasma AVT values for maternal ewes did not vary during the day in response to light/dark periods. The curve for mean fetal plasma AVT plotted against time showed oscillations with a period of about 25 hours (p less than 0.05). Peak fetal AVT levels were observed at 1600 hours and minimal levels at 0400 hours. These results indicate that ovine fetal AVT secretion varies diurnally. The site of AVT secretion may be the pineal gland; however, confirmation of this and identification of the physiological stimuli for secretion of fetal plasma AVT require further information.
Animals↗