31. This may be related to the damaged Leydig cells, as a result of the decreasing of inhibin expression. 32. In 1999, the center added a fourth substance in blood, inhibin -A, to the risk calculation. 33. Inhibin can also be useful for monitoring the progress of sex-cord tumors, along with mullerian inhibiting substance.34. The cohort of small antral follicles is normally sufficiently in number to produce enough Inhibin B to lower FSH serum levels. 35. In situ ligand binding studies have shown that 125 I inhibin ?A binds specifically to Leydig cells throughout rat testis development. 36. Cells called the Leydig cells lie between the tubules; these produce hormones called androgens; these consist of testosterone and inhibin . 37. Inhibin A may also be useful for predicting spontaneous resolution of PUL, but is not as good as progesterone for this purpose.38. The existence of inhibin in ovarian follicular fluid was confirmed by the Schwartz group in collaboration with Cornelia Channing in the mid 1970s. 39. "' Hypogonadism "'means diminished functional activity of the DHEA, anti-M�llerian hormone, activin, and inhibin . 40. In females FSH and LH act primarily to activate the ovaries to produce estrogen and inhibin and to regulate the menstrual cycle and ovarian cycle.
