Biochemistry Second Messengers

b. Increased cAMP and a subsequent increase in gluconeogenesis. Vasopressin: Gs. Increases PKA to combine with aquaporin-2 and increase water reabsorption in the distal nephron. GHRH: Gs. Increases cAMP → PKA → CREB → gene transcription for GH synthesis and release. LH: Gs. cAMP activity induces P-450scc to start androgen synthesis ................
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