Nongenomic Actions of Steroid Hormones in Reproductive Tissues*

Abstract

I. Introduction II. Nongenomic Actions of Estrogens A. Granulosa cells B. Endometrial cells C. Oocytes D. Spermatozoa III. Nongenomic Actions of P A. Granulosa cells B. Oocytes C. Spermatozoa IV. Nongenomic Actions of Androgens A. Sertoli cells B. Oocytes V. Signal Transduction Pathways Involved in Nongenomic Steroid Effects A. Ca2+ signal generation and amplification B. Ca2+ signal transduction C. The PTK system D. The GABAA-like receptor/Cl− channel VI. Cross-Talk Between the Nongenomic and Genomic Responses of Cells to Steroids VII. Conclusions