FIGURE 13-7 Presentation of the cyclical hormonal changes throughout the human menstrual cycle for luteinizing hormone (LH), follicle-stimulating hormone (FSH), progesterone, 17-hydroxy-progesterone (17a-OHP), and estradiol (E2). The cyclic changes in hormones diagrammed in this figure should be correlated with morphological changes of the follicle-corpus luteum and endometrium illustrated in Figure 13-8. The inhibin data were abstracted from McLachlan, R. I., Robertson, D. M., Healy, D. L., Burger, H. G., and de Kretser, D. M. Circulating immunoreaqtive inhibin levels during the normal human menstrual cycle J. Clin. Endocrinol. Metab. 65, 954-961. The top five panels were modified from Thorneycroft, I. H„ Mishell, D. R., Jr., and Stone, S. C. (1971) (1987). Am. ]. Obstet. Gynecol. Ill, 947-951.

Progesterone ng/ml

17aOHP ng/ml

Inhibin 1500

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