• FSH is subject to oestrogen feed-back from the gonads via the hypothalamic pituitary gonadal axis. (wikidoc.org)
  • It is under the influence of the hypothalamic-pituitary-gonadal axis and, because of its hormone receptors, it is a target tissue for prolactin (PRL) and sex steroid hormones (estrogen and progesterone). (bvsalud.org)
  • After secretion of GnRH-secreting neurons in the hypothalamic preoptic area, GnRH is transported by blood through the hypothalamic-pituitary-gonadial axis to the pituitary gland, which contains gonadotropic cells, with receptive GnRH receptors - a seven receptor G-protein coupled transmembrane called gonadotropin-releasing hormone receptor (GnRHR). (peptidesforresearch.com)
  • The binding of GnRH to GnRHR subsequently activates the synthesis and secretion of gonadotropins - luteinizing hormone (LH) and follicle-stimulating hormone (FSH) in the pituitary gland. (peptidesforresearch.com)
  • Thyroid-stimulating hormone (thyrotropin) controls the rate of secretion of thyroxine and tri-iodothyronine by the thyroid gland- regulates most intracellular chemical reactions in the body. (sabkuchonline.pk)
  • Prolactin promotes mammary gland development and milk production and influences the secretion of estrogen/progesterone. (sabkuchonline.pk)
  • [7] GnRH has been shown to play an important role in the secretion of FSH, with hypothalamic-pituitary disconnection leading to a cessation of FSH. (wikidoc.org)
  • It synthesizes and secretes certain neurohormones , called releasing hormones or hypothalamic hormones, and these in turn stimulate or inhibit the secretion of hormones from the pituitary gland. (cloudfront.net)
  • This paper reviews our recent data from ultrastructural, immunohistochemical, receptor localization, and superfusion studies, which suggest a role for neuropeptides in the control of teleost pituitary secretion. (leedstrinity.ac.uk)
  • At least 2 bulls and possibly a 3rd showed behavioural improvement following GnRH vaccination and in all 3 temporal gland secretion ceased. (scielo.org.za)
  • Apart from increased aggressive behaviour, the main signs of musth are heavy and continuous temporal gland secretion (TGS) and continuous urine dribbling 20,22,41 . (scielo.org.za)
  • Secretion of GnRH is also reduced as basal serum luteinizing hormone (LH) levels were significantly lower in female Jak2 G −/− mice while the pituitary responded normally to exogenous GnRH. (jneurosci.org)
  • GnRH travels via the portal vasculature to the anterior pituitary stimulating the synthesis and secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the gonadotroph. (jneurosci.org)
  • 17α-hydroxyprogesterone (17-OHP) is a steroid hormone that is primarily produced in the adrenal glands, as well as in ovaries, testes, and placenta. (cdc.gov)
  • Androstenedione is a steroid hormone that is produced in the adrenal glands and the gonads. (cdc.gov)
  • Luteinizing hormone (LH, also known as luteinising hormone, lutropin and sometimes lutrophin) is a hormone produced by gonadotropic cells in the anterior pituitary gland. (wikipedia.org)
  • A fraction isolated from the anterior pituitary glands of rats castrate for 8 weeks contained essentially a single cytoplasmic constituent with which the major portion of the gonadotropic hormone activity was associated. (rupress.org)
  • The glands were homogenized in an 0.25 M sucrose + 7.3 per cent polyvinylpyrrolidone (PVP) solution and fractionated by differential centrifugation to give a heterogeneous small granule fraction which contained almost all the gonadotropic hormone activity. (rupress.org)
  • This layer was fractionated further by isopycnic and differential centrifugation to obtain a pellet which contained the major portion of the gonadotropic hormone activity. (rupress.org)
  • The cytoplasmic material containing the gonadotropic hormone activity passed through the filter paper and this activity was recovered in the pellets obtained by centrifuging at 100,000 g for 1 hour. (rupress.org)
  • These active pellets consisted almost entirely of 200 mµ granules with a minimum amount of contamination, and they contained the major portion of the gonadotropic hormone activity with practically none remaining in the supernatant fraction. (rupress.org)
  • In response, the pituitary gland releases follicle-stimulating hormone (FSH) and luteinizing hormone (LH). (jackwestin.com)
  • During childbirth, the pituitary hormone oxytocin is responsible for the contraction of the uterus at the beginning of labor . (jackwestin.com)
  • Together with FSH (follicle-stimulating hormone), LH belongs to the gonadotropic family. (discountedlabs.com)
  • By acting in the anterior pituitary gland (brain tag), it increases the production of LH (Luteinizing Hormone) and FSH (Follicle Stimulating Hormone). (steroidyeu.eu)
  • Hormone Testing: Gonadorelin is also used diagnostically to assess the responsiveness of the pituitary gland to GnRH stimulation. (peptidesforresearch.com)
  • GnRH induces the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) gonadotropins from the anterior pituitary, and their release is the first step in the working system of the hypothalamic-pituitary-gonadial axis, resulting in increased significant in blood testosterone levels in men. (peptidesforresearch.com)
  • a hormone secreted by the adrenal glands. (absp.org.uk)
  • a hormone secreted by the thyroid gland, controlling the rate of bone destruction. (absp.org.uk)
  • a hormone that stimulates the adrenal gland. (absp.org.uk)
  • a gonadotropic hormone, as follicle-stimulating hormone. (absp.org.uk)
  • a protein hormone of the pituitary gland. (absp.org.uk)
  • a hormone secreted by the pituitary gland which stimulates the production of melanin by melanocytes. (absp.org.uk)
  • a hormone secreted by the pineal gland during the hours of darkness. (absp.org.uk)
  • a neurotransmitter hormone related to adrenalin, produced by the adrenal glands. (absp.org.uk)
  • We aimed to determine the outcome of pituitary hormone deficits after surgical treatment of NFPMA and to identify factors predicting hormonal recovery. (researchsquare.com)
  • Non-functioning pituitary adenomas (NFPAs) are benign pituitary tumors that are typically associated with no clinical or biochemical signs of hormone excess (1,2,3). (researchsquare.com)
  • The aims of the present study were: (i) to assess the prevalence of pituitary hormone deficits at diagnosis in a large series of patients undergoing surgery for a NFPMA, (ii) to evaluate post-operative evolution of pituitary functions, and (iii) to identify factors predicting hormonal recovery after primary surgical treatment. (researchsquare.com)
  • [7] Much smaller parvocellular neurosecretory cells , neurons of the paraventricular nucleus, release corticotropin-releasing hormone and other hormones into the hypophyseal portal system , where these hormones diffuse to the anterior pituitary . (cloudfront.net)
  • The thyroid gland secretes thyroxin, a hormone that can reduce concentration and lead to irritability when the thyroid is overactive and cause drowsiness and a sluggish metabolism when the thyroid is underactive. (medscape.com)
  • These morphological findings have been supplemented by autoradiographic studies, which showed the distribution of binding sites for vasotocin, isotocin, galanin, and neuropeptide Y ligands over specific groups of pituitary cells, and superfusion studies that showed growth hormone release was stimulated by growth hormone-releasing factor and thyrotropin-releasing hormone, but inhibited by somatostatin. (leedstrinity.ac.uk)
  • The gene for the FSH beta subunit is located on chromosome 11p13, and is expressed in gonadotropes of the pituitary cells, controlled by GnRH , inhibited by inhibin , and enhanced by activin . (wikidoc.org)
  • The effect of valproate (VPA) treatment on inositol phosphates (IPs) accumulation in non-stimulated and GnRH-treated female rat anterior pituitary cells in vitro. (nel.edu)
  • Wasilewska-Dziubinska E, Gajewska A, Herman A, Wolinska-Witort E, Skrzypska J, Martynska L, Kalisz M, Chmielowska M. The effect of valproate (VPA) treatment on inositol phosphates (IPs) accumulation in non-stimulated and GnRH-treated female rat anterior pituitary cells in vitro. (nel.edu)
  • As with other GnRH agonist, other adverse reactions, including decreased bone density and rare cases of pituitary apoplexy may occur. (nih.gov)
  • the feminine gonads, the ovaries, are a pair of reproductive glands. (newessayhelp.com)
  • Two separate gonadotropic hormones, FSH & LH, control growth of the ovaries and testes and control their hormonal and reproductive activities respectively. (sabkuchonline.pk)
  • In males, they're the testes, or testicles, the male sex glands that are a part of the male reproductive system. (newessayhelp.com)
  • The 2 suprarenal glands are located above the kidneys. (medscape.com)
  • Postoperative improvement of pituitary endocrine function was considered if at least one hormonal deficit had recovered and a lower total number of deficits was observed one year after surgery. (researchsquare.com)
  • The pineal gland is a pea-sized gland that apparently responds to exposure to light and regulates activity levels over the course of the day. (medscape.com)
  • This panel is useful in determining the health of the hypothalamic-pituitary-testicular axis (HPTA) and whether a man has primary or secondary hypogonadism. (discountedlabs.com)
  • It is also recommended for assessing the health of the hypothalamic-pituitary-testicular axis, also known as HPTA. (discountedlabs.com)
  • The hypothalamic-pituitary-gonadal (HPG) axis is a key neuroen-docrine regulation system involved in the growth and reproduction of poultry. (scielo.br)
  • The hypothalamic-pituitary-gonadal (HPG) axis is an important component of the endocrine system, regulating reproductive functions of the body. (scielo.br)
  • The endocrine system acts through chemical messengers known as hormones which are produced by specialized glands. (winmeen.com)
  • One of the most important functions is to link the nervous system to the endocrine system via the pituitary gland . (cloudfront.net)
  • The endocrine system-the other communication system in the body-is made up of endocrine glands that produce hormones, chemical substances released into the bloodstream to guide processes such as metabolism, growth, and sexual development. (medscape.com)
  • The endocrine system consists of endocrine glands that produce and secrete hormones into the blood stream to reach and act on target cells of specific organs. (medscape.com)
  • Domperidone is a dopamine-2 (D2) receptor antagonist that stimulates the release of stored prolactin in the anterior pituitary. (bvsalud.org)
  • Pituitary Gland: An endocrine gland, about the size of a pea, that sits in a small, bony cavity at the base of the brain whose secretions control the other endocrine glands and influence growth, metabolism, and maturation. (sabkuchonline.pk)
  • The implications of these results for neuropeptidergic control of teleostean pituitary secretions are discussed. (leedstrinity.ac.uk)
  • Besides GH, the gonadotropic and thyrotropic axes were the most commonly affected (68% and 62%, respectively). (researchsquare.com)
  • FSH is synthesized and secreted by the gonadotropic cells of the anterior pituitary gland, and regulates the development, growth, pubertal maturation, and reproductive processes of the body. (medicationsoffers.net)
  • In contrast to the alpha gene activity, beta LH subunit gene activity is restricted to the pituitary gonadotropic cells. (wikipedia.org)
  • The two hormones are produced by the gonadotropic cells of the anterior pituitary gland. (discountedlabs.com)
  • a. 3) Differentiate between the function of the seminiferous tubules and the interstitial cells a. 4) List and locate the glands that contributes to the formation of semen. (newessayhelp.com)
  • Gonadotropins - Gonadotropins are glycoprotein hormones secreted by gonadotropic cells of the anterior pituitary gland of vertebrates. (newessayhelp.com)
  • In males , FSH induces Sertoli cells to secrete androgen-binding proteins (ABPs), regulated by inhibin 's negative feedback mechanism on the anterior pituitary . (wikidoc.org)
  • Evaluation of orexin A activity on LH and FSH release from primary culture pituitary cells in immature and mature female rats. (nel.edu)
  • The evaluation of estradiol and leptin action on the activity of the somatotropic and gonadotropic axes in peripubertal female rats. (nel.edu)
  • Wolinska-Witort E, Martynska L, Chmielowska M, Wasilewska-Dziubinska E, Bik W, Baranowska B. The evaluation of estradiol and leptin action on the activity of the somatotropic and gonadotropic axes in peripubertal female rats. (nel.edu)
  • However, the number of studies specifically addressing the outcome of pituitary function after surgery of NFPMAs only remains limited. (researchsquare.com)
  • They often used various diagnostic criteria for pituitary deficits, some included small numbers of patients and some provided conflicting results. (researchsquare.com)
  • Addison recognized the relationship between low blood pressure, muscular weakness, weight loss, bronzing of skin, and the pathology of the suprarenal gland in 1855. (medscape.com)