Target Tissues for Relaxin

Two series of experiments have been conducted to identify possible target tissues for relaxin in the rat (Cheah and Sherwood, 1980). This paper will briefly describe the results of these experiments in which we: (a) examined the distribution of radioactivity in various tissues following the injection of 125I- labeled relaxin (125I-relaxin) in vivo and (b) measured the cAMP levels in tissues following incubation with relaxin in vitro.