[PDF][PDF] Control of neurohypophysial hormone secretion, blood osmolality and volume in pregnancy

PJ Brunton, S Arunachalam, JA Russel - J Physiol Pharmacol, 2008 - jpp.krakow.pl
In pregnancy, blood volume increases greatly and plasma osmolality is reduced, due to mild
hyponatraemia despite sodium retention. In rats, both vasopressin and oxytocin neurones in …

Vasopressin and oxytocin levels during normal pregnancy: effects of chronic dietary sodium restriction

JAM Van der Post, BJA Van Buul… - journal of …, 1997 - joe.bioscientifica.com
Neurohypophysial hormones are thought to be involved in alterations in fluid balance during
pregnancy and delivery. In the course of normal pregnancy intravascular volume is …

Endogenous opioid regulation of oxytocin and ACTH secretion during pregnancy and parturition

AJ Douglas, JA Russell - Progress in brain research, 2001 - Elsevier
Progress of parturition in the rat is optimal when there is increased oxytocin secretion, thus
ensuring quick birth and otherwise risking adverse neonatal health. To ensure that the …

Osmoregulation, the secretion of arginine vasopressin and its metabolism during pregnancy

MD Lindheimer, JM Davison - European journal of …, 1995 - academic.oup.com
This review stresses changes in osmoregulation as well as the secretion and metabolism of
aŕginine vasopressin during pregnancy, focusing on human gestation. Pregnant women …

Allopregnanolone and induction of endogenous opioid inhibition of oxytocin responses to immune stress in pregnant rats

PJ Brunton, J Bales, JA Russell - Journal of …, 2012 - Wiley Online Library
In virgin rats, systemic administration of interleukin (IL)‐1β (ie to mimic infection), increases
oxytocin secretion and the firing rate of oxytocin neurones in the supraoptic nucleus (SON) …

Osmoregulation in pseudopregnant and prolactin-treated rats: comparison with normal gestation

WM Barron, MD Lindheimer - American Journal of …, 1988 - journals.physiology.org
Osmoregulation was studied throughout rodent pregnancy focusing on the importance of the
fetoplacental unit and prolactin in the observed alterations. Plasma osmolality (Posmol) and …

Sex‐steroid induction of endogenous opioid inhibition on oxytocin secretory responses to stress

Douglas, Johnstone, Brunton… - Journal of …, 2000 - Wiley Online Library
In pregnancy, endogenous opioids inhibit enhanced basal and stressor‐stimulated oxytocin
neurone activity and secretion. By contrast, stress responses of the hypothalamo‐pituitary …

Osmoregulation and vasopressin secretion during pregnancy in Brattleboro rats

WM Barron, J Durr, BA Stamoutsos… - American Journal of …, 1985 - journals.physiology.org
Osmoregulation during pregnancy was compared in Brattleboro rats completely lacking
vasopressin [homozygous (DI)], those with partial deficiency [heterozygous (HZ)], and …

The magnocellular oxytocin system, the fount of maternity: adaptations in pregnancy

JA Russell, G Leng, AJ Douglas - Frontiers in neuroendocrinology, 2003 - Elsevier
Oxytocin secretion from the posterior pituitary gland is increased during parturition,
stimulated by the uterine contractions that forcefully expel the fetuses. Since oxytocin …

Nitric oxide and the oxytocin system in pregnancy

R Srisawat, M Ludwig, PM Bull, AJ Douglas… - Journal of …, 2000 - Soc Neuroscience
We examined the functional role of the nitric oxide (NO)-producing system in magnocellular
neurons and how this changes at the end of pregnancy, using a combination of blood …