Posterior pituitary hormones
POSTERIOR PITUITARY HORMONES
|
Anti diuretic hormone (Vasopresssin)
-
This hormone regulates water permeability in the distal tubules and collecting duct of the nephron.
-
It is also a vasoconstrictor and influences cardiovascular functions.
-
It is used in the treatment of diabetes insipidus and prophylactically against bleeding in haemophilia.
Oxytocin
-
Oxytocin is produced in neuronal bodies in the supra optic and paraventricular nuclei of the hypothalamus.
-
Oytocin stimulates smooth muscle contractions and also includes PGF2 alpha release which causes luteolysis.
Uses
-
Speeding the expulsion of foetus when uterine inertia is diagnosed
-
Aids in the expulsion of placental debris and promotes involution of the uterus
-
In uterine prolapse injection of oxytocin at several places in the organ reduces the engorgement and contracts the everted uterus. Thus helps in the replacement more easily
-
Functional agalactia in cows
-
In mastitis in cattle to expel the infected milk before using any antibacterial agents.
|
Last modified: Thursday, 26 April 2012, 5:15 AM