PowerPoint Presentation

9/8/03

Positive Feedback Loop

•Extracellular cAMP increases

(g increases)

•Þ Rate of synthesis of intracellular cAMP increases

(F increases)

•Þ Intracellular cAMP increases

(b increases)

•Þ Rate of secretion of cAMP increases

•(Þ Extracellular cAMP increases)

See Equations