1973 年 20 巻 6 号 p. 645-647
LH synthesizing activity of synthetic LHRH was proved by using the rat pituitary implanting system of the rat intratesticular test which the authors had previously proposed for the evaluation of LH releasing factor. In this test system, administration of a very low dose of LHRH (0.1 ng) gave a definite positive response within 1 hr.