Neuroendocrine Regulation of Gonadotropin Secretion.- Peptide-Steroid Interactions in the Modulation of the Hypothalamic-Pituitary Axis.- Localization of Neuroactive Substances in the Hypothalamus with Special Reference to Coexistence of Messenger Molecules.- Receptor-Weighted Mechanistic Approach to Analysis of the Actions of Estrogen and Progesterone on Gonadotropin Secretion.- The Steroid-Neuropeptide Connection in the Control of LHRH Secretion.- Transmembrane Signals and Intracellular Messengers Mediating LHRH and LH Secretion.- Regulation of Pulsatile Luteinizing Hormone Release During the Estrous Cycle and Pregnancy in the Rat.- Selective Modulation of FSH and LH Secretion by Steroids.- Role of Prolactin in the Regulation of Sensitivity of the Hypothalamic-Pituitary System to Steroid Feedback.- Regulation of Folliculogenesis and Ovulation.- Studies of the Periovulatory Interval in the In Vitro Perfused Ovary.- Significance of Angiogenic and Growth Factors in Ovarian Follicular Development.- Kinetic Aspects of Follicular Development in the Rat.- Animal Models for Study of Polycystic Ovaries and Ovarian Atresia.- Androgen-Induced Changes in Ovarian Granulosa Cells from Immature Rats In Vitro.- Estrogen-Producing Ovarian Granulosa Cells: Use of the Granulosa Cell Aromatase Bioassay (GAB) to Monitor FSH Levels in Body Fluids.- Receptor-Mediated Action Without Receptor Occupancy: A Function for Cell-Cell Communication in Ovarian Follicles.- Regulation of Corpus Luteum Function in Pregnancy.- Comparative Aspects of the Regulation of Corpus Luteum Function in Various Species.- Role of Estrogen and the Placenta in the Maintenance of the Rabbit Corpus Luteum.- Decidual Luteotropin Secretion and Action: Its Role in Pregnancy Maintenance in the Rat.- Role of Placental Lactogen and Prolactin in Human Pregnancy.- Regulation of Relaxin Secretion and its Role in Pregnancy.- Regulation of Testicular Cell Functions and Spermatogenesis.- Regulation of Mitochondrial and Microsomal Cytochrome P-450 Enzymes in Leydig Cells.- Demonstration of hCG Binding Sites and hCG Stimulated Steroidogenesis in Different Populations of Interstitial Cells.- Differentiation and Polarized Function of Sertoli Cells In Vitro.- Spermatogenesis In Vitro: Searching for In Vivo Correlates.- Hormonal Regulation of Sertoli Cell Function.- Short Papers.- Chronic Effects of Insulin and Insulin-Like Growth Factor-I on Steroidogenesis by Rat Leydig Cells.- Isolation and Characterization of Seminal Fluid Proteins that Bind Heparin.- Induction of 3?-Hydroxysteroid Dehydrogenase Activity by Insulin-Like Growth Factor-I in Primary Culture of Purified Leydig Cells.- The Effects of Low O2 and Antioxidants on Steroidogenic Capacity in Cultured Rat Leydig Cells.- Direct Effects of Hormones of the Hypothalamic-Pituitary-Thyroid Axis on Testicular Steroidogenesis in the Hamsters.- How does the Gonad Affect LHRH Secretion? Effects of Gonadectomy on LHRH Release from Median Eminence Nerve Terminals Incubated In Vitro and on LHRH Concentration in Hypophyseal Portal Blood.- Orchidectomy Induces Temporal and Regional Changes in the Synthesis and Processing of the LHRH Prohormone in the Rat Brain.- Pulsatile Hormone Secretion Late in the Luteal Phase of Normal and Infertile Women During Diurnal Hours.- LH and Estradiol Secretion after HCG and GNRH Treatments in Gilts.- Several GnRH Stimulation Frequencies Differentially Release FSH and LH from Isolated, Perfused Rat Anterior Pituitary Cells.- Opioid Modulation of Follicle Stimulating Hormone (FSH) and Prolactin (PRL) Secretion in the Postpartum Sow.- On the Site of Action of the Estradiol-Induced Release of Luteinizing Hormone (LH) in Pigs.- Induction of Follicular Cysts in Rat Ovaries by Prolonged Administration of Human Chorionic Gonadotropin.- Paracrine Control of 3?-Hydroxysteroid Dehydrogenase, 17,20-Lyase and Aromatase Enzyme Systems in Porcine Thecal Cells.- Stimulation of Intracellular Free Ca2+ by Luteinizing Hormone in Isolated Bovine Luteal Cells.- The Effect of Prostaglandin F2? on Mitochondrial Election Dense Inclusions and Secretory Granules of the Bovine Large Luteal Cell During Late Pregnancy.- In Vitro Production of Angiotropic Factor by Bovine Corpus Luteum: Partial Characterization of Activities that are Chemotactic and Mitogenic for Endometrial Cells.- Action of Progesterone and RU38486 on Protein Synthesis in Rat Placenta.- The Intraovarian Effect of Progesterone on Follicle Development in the Rabbit Ovary.- The Relationships of Oocyte Quality and Follicular Fluid Prolactin and Progesterone in Superovulated Beef Heifers with and without Norgestomet Implants.- Coordinated Receptor Regulation in Ovarian Granulosa Cells.- Ovarian and Decidual Relaxins in Human Pregnancy.- The Effect of Prostaglandin F2? on Relaxin Release Differs in the Cyclic and Pregnant Sow.- Levels of Follicle Regulatory Protein in Regular Menstruating and Amenorrheic Patients.- Ovarian Follicular Fluid Peptide (OFFP): Effects on Follicular Maturation, Ovulation and Luteinization in Mice and Marmosets.- Chemical Characteristics of Follicular Glycosaminoglycans.- On the Intrinsic Ovarian Control of the Developmental Transition from Primordial to Primary Follicle.- Stereochemical Complementarity of Antiestrogens and DNA.- Contributors.