Hypothalamic And Pituitary Flashcards
Somatostatin
GHiH
Made by hypothalamus and pancreas
- inhibit release of GH, insulin, glucagon, gastrin, constricts splanchnic blood vessels
Somatotropin
Somatrem
Aka Growth Hormone
Promotes bone growth-
**somatomedin c or insulin growth factors (igf-1) by liver
Use: GH deficiency, turners, chronic renal failure, severe catabolic states-AIDS
A.e. Edema, carpel tunnel
Octreotide
Lanreotide
GH inhibiting Long acting Given subcutaneous injection Use for Acromegaly, diarrhea of carcinoid syndrome , esophageal varies, glucaganoma, gastrinoma
Urofollitropin
Fillitropin alpha and beta
FSH Induce follicular growth Develop ovum Secrete estrogen Regulate spermatogenisis in men
Lutropin
Lutenizing hormone
Ovulation, maintain corpus luteum, progesterone secretion, testosterone secretion
Gonadorelin Leuprolide- use in prostate cancer Gosperelin Buserelin Histerelin Nadarelin
GnRH -release FSH and LH
Used in prostate cancer -leuprolide and flutamideA.e. Andropause
Endometriosis and precocious puberty, promote overian hyperstimulation in IVF
Cetrorelix
Gainirelix
GnRH antagonist
Used in controlled ovarian hyperstimulation as part of invitro
-prevent premature surges of LH
Prolactin
Maintains and initiates lactation
Growth and development of breast
Bromocriptine
Pergolide
Cabergoline
Dopamine agonist- synthetic ergot alkaloids
Inhibits prolactin
Used for pituitary tumor-
In acromegaly to decrease GH **
Parkinson’s, suppress lactation, gynaecomastia, infertility
Antipsychotic - chlorpromazine
Haloperidol
Dopamine antagonist increase prolactin
Oxytocin
posterior pH
Induce uterine, present post partum haemorrhage, for milk let down
IV
-contradicated in fetal distress, cephalopelvic disproportion
Vasopressin (ADH)
Posterior pituitary hormones -
V1 receptors in vessels -vasoconstriction
V2- receptors in collecting ducts - antidouresis
Desmopressin More V2 activity - agonist , nasal spray for central DI,bleeding esophageal varies, haemophilia and von willibrand diseas
Conivaptan
Tolvaptan
Vasopressin ADH antagonist
For SIADH
Gonadorelin
GnRH ^ for infertility
Pulsatile administration
Pegvisomant
GH receptor antagonist for treatment of acromegaly