Which of the following statements about Pseudohypoprathyroidismistrue-
decreased urinary cyclic AMP responses to PTH , presumably with a post -GS alpha defect in adenyl cyclase stimulation ( Harrison 17 pg 2394)
Caused by 'Gain of!ftmction' inherited mutation in Gsa subunit
Decreased formation of cyclic GMP is observed
Decreased formation of Inositol triphosphate is observed
Decreased formation of c-AMP is observed
Endocrinology