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Hormonal mediation of reproductive behavior
Journal of Experimental Zoology, 1984AbstractReproductive capability requires synchronization of both endocrine and behavioral components of reproduction. The classic view of reproductive behavior was that there was simply direct stimulation of a behavioral response by the appropriate gonadal steroid.
M A, Ottinger +6 more
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2019
This chapter focuses on hormones and reproduction. Both male and female reproductive tissues produce steroid hormones as well as gametes. Puberty is a process that is initiated by the development of kisspeptin neurons, which signal the onset of menarche in girls at a body weight of around 47 kg; the exact mechanism is uncertain in boys.
Joy Hinson, Peter Raven
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This chapter focuses on hormones and reproduction. Both male and female reproductive tissues produce steroid hormones as well as gametes. Puberty is a process that is initiated by the development of kisspeptin neurons, which signal the onset of menarche in girls at a body weight of around 47 kg; the exact mechanism is uncertain in boys.
Joy Hinson, Peter Raven
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Reproductive Hormones in Menstrual Blood
The Journal of Clinical Endocrinology & Metabolism, 1989Menstrual and peripheral blood samples were collected from 19 regularly cycling women on days 1-3 of the menstrual cycle. Menstrual samples were collected with a soft silicone rubber menstrual cup. Hematocrit, PRL, LH, FSH, estradiol (E2), and progesterone (P4) were measured in all samples.
J P, Zhou +6 more
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Thyroid hormone receptors and reproduction
Journal of Reproductive Immunology, 2011Thyroid disorders have a great impact on fertility in both sexes. Hyperthyroidism and hypothyroidism cause changes in sex hormone-binding globulin (SHBG), prolactin, gonadotropin-releasing hormone, and sex steroid serum levels. In females, thyroid hormones may also have a direct effect on oocytes, because it is known that specific binding sites for ...
Ralf, Dittrich +6 more
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Reproductive hormones: ageing and the perimenopause
Acta Obstetricia et Gynecologica Scandinavica, 2002This review explores the pituitary‐ovarian hormones involved with ageing and the onset of menopause. The serum patterns of pituitary‐ovarian hormones throughout the menstrual cycle alter as menopause approaches. The increase in follicular phase FSH prior to menopause is attributed to an early decline in the ovarian hormone, inhibin B, which negatively ...
David M, Robertson, Henry G, Burger
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1999
Exogenous and endogenous regulators of reproductive cycles (Chap. 6) operate through two integrative systems, the nervous system and the endocrine system, which also coordinate the different components of reproduction with each other. The nervous system conducts electrical impulses at great speed and, generally, controls rapid processes.
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Exogenous and endogenous regulators of reproductive cycles (Chap. 6) operate through two integrative systems, the nervous system and the endocrine system, which also coordinate the different components of reproduction with each other. The nervous system conducts electrical impulses at great speed and, generally, controls rapid processes.
openaire +1 more source
Calciotropic hormones during reproduction
The Journal of Steroid Biochemistry and Molecular Biology, 1992This review summarizes the reported effects of the menstrual cycle, pregnancy and lactation on serum concentration of the calciotropic hormones PTH and 1,25(OH)2D. A midcycle rise in PTH and 1,25(OH)2D has been observed, but in the majority of studies there was no change in PTH and 1,25(OH)2D concentrations throughout the menstrual cycle.
J, Verhaeghe, R, Bouillon
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Hormones and reproduction in scleractinian corals
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2006Most broadcast spawning scleractinian corals synchronously release gametes during a brief annual spawning period. In southern Taiwan, the mass spawning of scleractinians occurs in lunar mid-March. The exact cues triggering this annual phenomenon remain unclear.
Wen-Hung, Twan +5 more
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The effects of environmental hormones on reproduction
Cellular and Molecular Life Sciences (CMLS), 1998Considerable attention has been given in the past few years to the possibility that man-made chemicals (xenobiotics) in the environment may pose a hazard to human reproductive health. The endocrine-disrupting effects of many xenobiotics can be interpreted as interference with the normal regulation of reproductive processes by steroid hormones. Evidence
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2018
This chapter explores the endocrine control of reproduction in female and male insects. The major gonadotropic hormones are juvenile hormones (JHs) and ecdysteroids, the same hormones that control metamorphosis and moulting. This parsimony in hormone complement occurs because the windows of sensitivity for development and reproduction are, to an extent,
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This chapter explores the endocrine control of reproduction in female and male insects. The major gonadotropic hormones are juvenile hormones (JHs) and ecdysteroids, the same hormones that control metamorphosis and moulting. This parsimony in hormone complement occurs because the windows of sensitivity for development and reproduction are, to an extent,
openaire +1 more source