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Related to gonadal steroids: adrenal steroids, Gonadal hormones


Relating to a gonad.
Farlex Partner Medical Dictionary © Farlex 2012


Relating to a gonad.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(go'nad) (gon'ad) [Gr. gone, seed]
1. The embryonic sex before differentiation into definitive testis or ovary.
2. A generic term referring to the female ovaries and the male testes. Each forms the cells necessary for human reproduction: spermatozoa from the testes, ova from the ovaries. See: estrogen; ovary; testicle; testosterone


Female: The follicles of the ovaries secrete estrogen, which helps regulate the menstrual cycle and the development of the secondary sex characteristics. The corpus luteum also produces progesterone, which stimulates growth of blood vessels in the endometrium for the implantation of a fertilized egg. Male: The interstitial cells of the testes secrete testosterone, which is essential for maturation of sperm and for development of the secondary sex characteristics.

Hormones from both sexes have been isolated and standardized and are used to treat conditions arising from an insufficiency of these hormones.

gonadal, adjective
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Sex-change and gonadal steroids in sequentially-hermaphroditic teleost fish.
(12.) A Frisch, "Sex-change and Gonadal Steroids;" A Budd, Q Banh, J Domingos and D Jerry, "Sex Control in Fish: Approaches, Challenges and Opportunities for Aquaculture," Journal of Marine Science and Engineering, 3:2 (2015), 329-55.
Differential behavioral effects of gonadal steroids in women with and in those without premenstrual syndrome.
Because of the critical role that gonadal steroids play in regulating reproductive development, any change in their production or metabolism could potentially disrupt the normal reproductive cycle.
The clinical, imaging and laboratory findings (adrenal and gonadal steroids, pituitary hormones, and karyotype) were consistent with 17-[beta]-HSD3 deficiency.
P Callard, "Lipids and lipid-transporting proteins in Chrysemys picta: role of gonadal steroids and growth hormone in intact and hypophysectomized turtles," General and Comparative Endocrinology, vol.
They examined a wide spectrum of testosterone levels, and the adverse effects of different levels, by temporarily suppressing the normal endogenous gonadal steroids of healthy men aged 20-50 years using subcutaneous goserelin.
Mechanism of clonal expansion of individual myometrial cells involves interplay of gonadal steroids and subsequent expansion of autocrine, paracrine and endocrine growth factors.
The precise influence of gonadal steroids hormones in pain is not well understood, therefore there are possible neuromodulatory roles of sex hormone on the opioid system.
Regulation of the steroid secretion from the gonads in the male and female is under complex regulatory mechanisms that include the feedback actions of gonadal steroids hormones and release of many neurotransmitters at the level of hypothalamus and the gonads.
Thus, gonadal steroids and peptides exert their effects on the gonadotropins either directly or via e hypothalamus (LEVAVI-SIVAN et al., 2010).
With due attention to PCOS which is the most common female endocrine disorder in women of reproductive age and the therapeutic activity of chamomile (Flavonoids), we saught to (1) compare the circulating levels of gonadotropins and gonadal steroids before and after injection of Chamomile extract in PCO induced rats (2), study the signs of PCOS in the ovarian tissue and (3) change in the number of dominant follicles upon Chamomile extract administration.