Title : Regulation of HCO3- absorption by prostaglandin E2 and G proteins in rat medullary thick ascending limb.

Pub. Date : 1996 May

PMID : 8928831






4 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 In the presence of AVP and hyperosmolality (75 mM NaCl added to perfusate and bath), PGE2 increased JHCO3 from 1.4 +/- 0.1 to 7.5 +/- 0.5 pmol.min-1.mm-1 (P < 0.005). Dinoprostone arginine vasopressin Rattus norvegicus
2 PGE2 also stimulated JHCO3 in the presence of AVP and hypertonic urea. Dinoprostone arginine vasopressin Rattus norvegicus
3 The stimulation of JHCO3 by PGE2 in the presence of AVP was blocked by pretreatment with pertusis toxin (PTX, 2 x 10(-11) or 10(-8) M). Dinoprostone arginine vasopressin Rattus norvegicus
4 PGE2 may act as a counterregulatory factor to maintain a stable rate of HCO3- absorption in the MTAL during antidiuresis when circulating AVP levels and medullary osmolality are elevated. Dinoprostone arginine vasopressin Rattus norvegicus