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1 Physiology of GnRH and Gonadotropin Secretion - NCBI
https://www.ncbi.nlm.nih.gov/books/NBK279070/
Testosterone Feedback​​ Testosterone exerts negative feedback on gonadotropin secretion. Early studies verified that LH and FSH pulse frequency ...
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2 Gonadotropin-Releasing Hormone (GnRH): Purpose & Testing
https://my.clevelandclinic.org/health/body/22525-gonadotropin-releasing-hormone
Afterward, testosterone, estrogen and progesterone control GnRH levels. Your body makes less GnRH when your sex hormone levels are high. It ...
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3 Gonadotropin Release - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/gonadotropin-release
In primates, and possibly humans, androgens suppress LH synthesis primarily through action on the GnRH pulse generator, but inhibitory effects are also found at ...
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4 Negative Feedback Regulation of the Secretion and Actions of ...
https://academic.oup.com/biolreprod/article/64/3/735/2723067
How testosterone and/or its primary metabolites act within the brain to suppress the synthesis and/or secretion of GnRH remains essentially unknown. A small ...
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5 Male reproductive physiology - UpToDate
https://www.uptodate.com/contents/male-reproductive-physiology/print
LH and FSH secretion are stimulated by the pulsatile release of gonadotropin-releasing hormone (GnRH) from neurons in the hypothalamus; ...
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6 Normal and Disordered Feedback Loops - Male
https://med.uc.edu/landing-pages/reproductivephysiology/lecture-3/normal-and-disordered-feedback-loops---male
Negative modulation of GnRH secretion results in diminished FSH and LH secretion with a greater inhibition of LH secretion. The effect of testosterone on the ...
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7 Feedback Inhibition of Gonadotropins by Testosterone in Men ...
https://onlinelibrary.wiley.com/doi/full/10.2164/jandrol.05140
Our study shows that the GnRH-gonadotropin-testosterone axis functions in most subjects with central hypogonadism. Testosterone suppressed LH ...
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8 Regulation of gonadotrophin-releasing hormone secretion by ...
https://www.biosciproceedings.org/bp/0004/bp0004rdr18.pdf
Although (3-endorphin clearly inhibits GnRH secretion, the observation ... but did not completely abolish, the ability of testosterone to inhibit LH.
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9 Gonadotropins: Luteinizing and Follicle Stimulating Hormones
http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/hypopit/lhfsh.html
As depicted in the figure to the right, GnRH stimultes secretion of LH, which in turn stimulates gonadal secretion of the sex steroids testosterone, ...
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10 Gonadotrophin-releasing hormone
https://www.yourhormones.info/hormones/gonadotrophin-releasing-hormone/
GnRH; gonadotropin-releasing hormone; luliberin; ... of hormones produced by the testes and ovaries (such as testosterone, oestradiol and progesterone), ...
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11 Aging attenuates both the regularity and joint synchrony of LH ...
https://journals.physiology.org/doi/full/10.1152/ajpendo.00227.2005
Testosterone (T) secretion declines in the aging male, albeit for unknown reasons ... of GnRH action do not directly inhibit gonadal function (60a, 67, 76).
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12 Follicle-Stimulating Hormone Abnormalities
https://emedicine.medscape.com/article/118810-overview
High-dose testosterone or estrogen therapy suppresses FSH and LH. ... Hyperprolactinemia can suppress GnRH secretion through a central ...
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13 43.4A: Male Hormones - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_General_Biology_(Boundless)/43%3A_Animal_Reproduction_and_Development/43.04%3A_Hormonal_Control_of_Human_Reproduction/43.4A%3A_Male_Hormones
A negative feedback system occurs in the male with rising levels of testosterone acting on the hypothalamus and anterior pituitary to inhibit ...
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14 GnRH-Induced Ca2+ Signaling Patterns and Gonadotropin ...
https://www.frontiersin.org/articles/10.3389/fendo.2013.00127/full
Similarly, when testosterone levels drop after orquiectomy the lack of negative feedback on pituitary and hypothalamus boosts both GnRH and LH ...
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15 Gonadotropin-releasing hormone agonist - Wikipedia
https://en.wikipedia.org/wiki/Gonadotropin-releasing_hormone_agonist
Side effects of GnRH agonists are related to sex hormone deficiency and include symptoms of low testosterone levels and low estrogen levels such as hot ...
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16 Leydig Cells and GnRH
https://www.tandfonline.com/doi/pdf/10.3109/01485018208990223
follicle stimulating hormone (FSH) does not act directly on Leydig cells, ... The GnRH inhibition of testosterone production was associated with decreases ...
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17 Development of Gonadotropin-Releasing Hormone Secretion ...
https://www.jneurosci.org/content/jneuro/34/45/15060.full.pdf
1984), as did in vivo GnRH release frequency in late pubertal ... GnIH and testosterone inhibition of spontaneous GnRH secretion.
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18 Glucocorticoids inhibit gonadotropin-releasing hormone by ...
https://link.springer.com/article/10.1007/BF03343627
Since testosterone (T), dihydrotestosterone (DHT), and progesterone suppress GnRH release and androgens potentiate the effects of ...
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19 24.4. Hormonal Control of Human Reproduction
https://opentextbc.ca/biology/chapter/24-4-hormonal-control-of-human-reproduction/
The hormone inhibits GnRH and FSH, decreasing the activity of the Sertoli cells. Increased levels of testosterone affect the release of both GnRH and LH, ...
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20 Application of gonadotropin releasing hormone in ...
https://eje.bioscientifica.com/downloadpdf/journals/eje/151/Suppl_3/U89.xml
since low gonadotropin and low testosterone levels are found in both conditions. ... from hypogonadotropic hypogonadism using long-term GnRH stimulation.
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21 Nasal delivery of nerve growth factor rescue hypogonadism by ...
https://www.thelancet.com/article/S2352-3964(18)30307-4/fulltext
The biosynthesis of testosterone is regulated by the HPG axis. ... GnRH produced by the hypothalamus stimulates the pituitary gland to ...
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22 Testosterone Hormone Feedback Mechanisms | AP® Biology
https://www.albert.io/learn/question/ap-biology/testosterone-hormone-feedback-mechanisms
Increasing levels of testosterone act on the hypothalamus and pituitary through a negative feedback loop to inhibit the release of GnRH and FSH/LH, ...
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23 GNRH agonists vs antagonists in prostate cancer
https://www.urologytimes.com/view/gnrh-agonists-vs-antagonists-in-prostate-cancer-how-to-choose
Continuous signaling initially causes a surge in testosterone and then leads to a drop-off in endogenous hypothalamic GNRH production and ...
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24 mediation by specific gonadotropin-releasing hormone - PNAS
https://www.pnas.org/doi/pdf/10.1073/pnas.77.8.4459
... absence of GnRH-A (0.01-10 ,gg). Testosterone and cyclic AMP contents of the incubation me- ... In gonadotropin receptor assays,GnRH-A did not inhibit.
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25 Gonadotropin Releasing Hormone (GnRH) Function
https://selfhacked.com/blog/gonadotropin-releasing-hormone/
Testosterone, estrogen, and progesterone then inhibit GnRH, which stops GnRH levels from getting too high [5]. This whole cycle is part of the ...
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26 Gonadotropin-releasing hormone antagonists
https://digital.lib.washington.edu/researchworks/bitstream/handle/1773/4402/CurrOpinPharmacol_2003_Gonadotropin_releasing_hormone.pdf?sequence=2
inhibit GnRH-induced GnRH receptor gene expression, ... 300 μg/kg suppressed testosterone below castrate levels for 15 days [29]. This dosage of acyline is ...
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27 Testosterone production, action, and clinical manifestations
https://www.discountedlabs.com/blog/testosterone-production-action
In the male body, the hypothalamus secretes gonadotropin-releasing hormone, or GnRH in a pulsatile fashion to stimulate the release of follicle-stimulating ...
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28 Gonadotrope androgen receptor mediates pituitary ...
https://insight.jci.org/articles/view/127817
Further, DHT did not inhibit GnRH-stimulated LH secretion in cultured pituitary ... Further, testosterone has been shown to suppress LH and FSH secretion ...
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29 Exogenous testosterone: a preventable cause of male infertility
https://tau.amegroups.com/article/view/2249/html
Exogenous administration of synthetic testosterone results in negative feedback on the hypothalamic-pituitary axis, inhibiting GnRH, leading to inhibition of ...
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30 Male Hypogonadism - Genitourinary Disorders - Merck Manuals
https://www.merckmanuals.com/professional/genitourinary-disorders/male-reproductive-endocrinology-and-related-disorders/male-hypogonadism
When primary hypogonadism affects testosterone production, testosterone is insufficient to inhibit production of FSH and LH; hence, FSH and LH levels are ...
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31 KoreaMed Synapse
https://synapse.koreamed.org/articles/1109690
When exogenous testosterone is present, it inhibits gonadotropin-releasing hormone (GnRH) production which in turn inhibits luteinizing ...
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32 Hormonal Control of Human Reproduction - Lumen Learning
https://courses.lumenlearning.com/suny-osbiology2e/chapter/hormonal-control-of-human-reproduction/
A negative feedback system occurs in the male with rising levels of testosterone acting on the hypothalamus and anterior pituitary to inhibit the release of ...
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33 Definition of gonadotrophin releasing hormone analogue - NCI
https://www.cancer.gov/publications/dictionaries/cancer-drug/def/gonadotropin-releasing-hormone-analog
In males, the inhibition of LH secretion prevents the production and release of testosterone from Leydig cells in the testes and causes a significant decline in ...
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34 Learn about GnRH deficiency / Kallmann syndrome - CHUV
https://www.chuv.ch/en/hhn/hhn-home/patients/learn-about-gnrh-deficiency-kallmann-syndrome
What does GnRH do? GnRH causes the production and release of the gonadotropins FSH and LH from the pituitary gland. Where is GnRH produced? GnRH ...
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35 A gonadotropin-releasing hormone antagonist reduces serum ...
https://bmcurol.biomedcentral.com/articles/10.1186/s12894-017-0261-z
Gonadotropin-releasing hormone (GnRH) antagonists block receptors directly, thereby rapidly suppressing testosterone (T) without the T surge ...
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36 Testosterone Is a Contraceptive and Should Not Be Used in ...
https://wjmh.org/DOIx.php?id=10.5534/wjmh.180036
When exogenous testosterone is present, it inhibits gonadotropin-releasing hormone (GnRH) production which in turn inhibits luteinizing ...
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37 Hormonal Control Of Reproduction - MCAT Content
https://jackwestin.com/resources/mcat-content/reproductive-system/hormonal-control-of-reproduction
In turn, the testes production of testosterone and the hormone inhibin inhibit the release of GnRH, FSH, and LH in a negative feedback loop.
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38 Pituitary Androgen Receptor Signalling Regulates Prolactin ...
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0121657
Production of the androgen testosterone is controlled by a negative feedback loop within the hypothalamic-pituitary-gonadal (HPG) axis.
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39 LUPRON DEPOT® 7.5 mg (leuprolide acetate for depot ...
https://www.accessdata.fda.gov/drugsatfda_docs/label/2012/019732s038lbl.pdf
Leuprolide acetate, a GnRH agonist, acts as a potent inhibitor of ... weeks would reduce and maintain serum testosterone to castrate range (≤50 ng/dL), ...
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40 Negative Feedback Regulation of the ... - ResearchGate
https://www.researchgate.net/publication/12124434_Negative_Feedback_Regulation_of_the_Secretion_and_Actions_of_Gonadotropin-Releasing_Hormone_in_Males
In males, the negative feedback actions of testosterone regulate GnRH, and in turn, gonadotropin (3) . GnRH neurons do not express androgen ...
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41 Spermatogenesis, its Regulation, and Recovery
https://www.leoandlongevity.com/post/spermatogenesis-its-regulation-and-recovery
Endogenous testosterone production provides feedback to the HPG system. As it rises, it inhibits GnRH release in the hypothalamus, ...
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42 Therapeutic Advances in Urology - SAGE Journals
https://journals.sagepub.com/doi/full/10.1177/17562872221105017
The use of exogenous testosterone and anabolic steroids suppresses male fertility by augmenting this negative feedback inhibition centrally.
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43 Gonadotropin-releasing hormone antagonists - Drugs.com
https://www.drugs.com/drug-class/gonadotropin-releasing-hormone-antagonists.html
In men, gonadotropin-releasing hormone antagonists inhibit the release of luteinizing hormone, and consequently less testosterone is produced.
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44 Brain Hormones | Endocrine Society
https://www.endocrine.org/patient-engagement/endocrine-library/hormones-and-endocrine-function/brain-hormones
Found deep inside the brain, the hypothalamus produces releasing and inhibiting hormones and ... Gonadotrophin Releasing Hormone GnRH.
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45 CH 28 HW - REPRODUCTIVE SYSTEM Flashcards | Quizlet
https://quizlet.com/517779928/ch-28-hw-reproductive-system-flash-cards/
Increased blood levels of testosterone inhibit the production of GnRH from the hypothalamus. GnRH normally diffuses just a short distance to the anterior ...
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46 Anti-GnRH antibodies can induce castrate levels of ... - Nature
https://www.nature.com/articles/6691315.pdf?origin=ppub
Anti-GnRH antibodies can induce castrate levels of testosterone in patients with advanced prostate cancer · 1237 Accesses · 57 Citations · 7 ...
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47 Mediation by Specific Gonadotropin-Releasing Hormone - jstor
https://www.jstor.org/stable/9123
... absence of GnRH-A (0.01-10 ,g). Testosterone and cyclic AMP contents of the incubation me- ... In gonadotropin receptor assays, GnRH-A did not inhibit.
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48 The Menstrual Cycle | Patient Education - UCSF Health
https://www.ucsfhealth.org/education/the-menstrual-cycle
GnRH stimulates the pituitary gland to produce follicle stimulating hormone (FSH), the hormone responsible for starting follicle (egg) development and causing ...
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49 Cardiovascular Effects of Androgen Deprivation Therapy in ...
https://www.ahajournals.org/doi/full/10.1161/ATVBAHA.119.313046
GnRH antagonists bind to GnRH receptors on gonadotropin-producing cells in the anterior pituitary to inhibit release of LH or FSH without an ...
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50 Hormone therapy for prostate cancer - Mayo Clinic
https://www.mayoclinic.org/tests-procedures/hormone-therapy-for-prostate-cancer/about/pac-20384737
Most prostate cancer cells rely on testosterone to help them grow. ... Mayo Clinic does not endorse companies or products.
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51 Gonadotropin Hormones - News Medical
https://www.news-medical.net/health/Gonadotrophin-Hormones.aspx
As the LH level rises in response to GnRH secretion, the production of testosterone, estrogen, and progesterone rises. These sex steroids now inhibit the ...
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52 Endocrine System : Feedback Loops - Tulane
http://e.hormone.tulane.edu/learning/feedback-loops.html
The hypothalamus and pituitary notice the increase and stop secreting GnRH, LH and FSH hormones. This causes the ovaries to stop releasing estradiol and ...
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53 Hormones of the Reproductive System - Kimball's Biology Pages
https://www.biology-pages.info/S/SexHormones.html
High levels of estrogens suppress the release of GnRH (bar) providing a ... However, high levels of estrogen (or progesterone or testosterone) inhibit the ...
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54 Hormone substances are of two general types: Water-soluble
https://www.rnceus.com/chem/hormonerx.html
Water-soluble hormones are amines and proteins that do not passively diffuse ... In the adolescent and adult male, testosterone inhibits fat deposition, ...
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55 GnRH Pulsatility, the Pituitary Response and Reproductive ...
https://www.jstage.jst.go.jp/article/endocrj/56/6/56_K09E-185/_pdf
GnRh pulsatility is inhibited by chronic malnutrition, excessive caloric expenditure, ... and intra-testicular testosterone levels, whereas females.
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56 GONADORELIN (GnRH) - Peptides by BeringOmega
https://beringomega.org/product/gonadorelin/
Does testosterone stimulate GnRH? ... No, Testosterone inhibits gonadotropin secretion: Testosterone and/or its metabolites slows LH pulse frequency in man and ...
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57 Gonadotropin-releasing Hormone (GnRH) and the ... - GLOWM
https://www.glowm.com/section-view/heading/Gonadotropin-releasing%20Hormone%20(GnRH)%20and%20the%20GnRH%20Receptor%20(GnRHR)/item/284
In addition, it has been demonstrated that CRH inhibits hypothalamic GnRH ... Constant GnRH exposure presumably does not decrease GnRHR expression in ...
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58 General endocrinology - Knowledge @ AMBOSS
https://www.amboss.com/us/knowledge/General_endocrinology/
GnRH. ). The. pituitary gland. is composed of the. anterior pituitary. , which secretes tropic hormones (e.g.,.
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59 Everything Testosterone and Exercise | Bro Research
https://broresearch.com/everything-testosterone-and-exercise/
The major regulator of GnRH secretion is Testosterone itself, this is called negative feedback inhibition. This means if testosterone is high the signal to ...
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60 Reversibility of GnRH Agonist-Induced Inhibition of Testicular ...
https://www.semanticscholar.org/paper/Reversibility-of-GnRH-Agonist-Induced-Inhibition-of-Weinbauer-Nieschlag/2e4e422c1c1902a1c50dd28d4ef140871aaf7b7d
As a consequence of the induced hypogonadotropism, testosterone production is decreased and chronic treatment with GnRH analogues severely impairs or ...
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61 Long-term Opioids Linked to Hypogonadism and the Role of ...
https://www.cureus.com/articles/41689-long-term-opioids-linked-to-hypogonadism-and-the-role-of-testosterone-supplementation-therapy
We did a substantial search in PubMed and Google Scholar, ... can inhibit the secretion of GnRH and cause low testosterone levels [17].
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62 Direct Ovarian Effects of a GnRH Agonist in ... - BioOne
https://bioone.org/journals/zoological-science/volume-17/issue-1/zsj.17.83/Direct-Ovarian-Effects-of-a-GnRH-Agonist-in-Hypophysectomized-Immature/10.2108/zsj.17.83.full
Our data indicate that GnRH can inhibit theca-interstitial function by downregulating the LH receptor expression and consequently suppressing androgen ...
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63 Examining the effects of calorie restriction on testosterone ...
https://www.siditalia.it/images/concentrations-decline-with-age-in.pdf
does CR affect testosterone concentrations compared with a control? ... may also inhibit GnRH release from the hypothalamus, ultimately resulting in reduced ...
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64 The Effect of Testosterone on Cardiovascular Disease and ...
https://www.cjcopen.ca/article/S2589-790X(21)00133-5/fulltext
... increasing testosterone levels activating a negative feedback loop that inhibits the release of gonadotropic releasing hormone (GnRH), ...
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65 Testosterone Therapy in Adolescent Boys: The Need for a ...
https://www.karger.com/Article/FullText/504670
Background: In adolescents, testosterone may have several effects including ... that testosterone therapy does not adversely affect adult height [95-98].
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66 leuprolide (Lupron) Uses, Side Effects & Dosage - MedicineNet
https://www.medicinenet.com/leuprolide/article.htm
The release of GnRH, LH and FSH is governed by negative feedback which means that when there is too much testosterone or estrogen being produced, the body ...
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67 Hormonal Control of Human Reproduction | Boundless Biology
https://www.coursehero.com/study-guides/boundless-biology/hormonal-control-of-human-reproduction/
In turn, the testes production of testosterone and the hormone inhibin inhibit the release of GnRH, FSH, and LH in a negative feedback loop. At the onset of ...
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68 FSH and LH
https://mcb.berkeley.edu/courses/mcb135e/fsh-lh.html
stimulates Leydig cells to produce testosterone. testosterone provides negative feedback to anterior pituitary and hypothalamus ...
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69 Hypogonadism in Male Patients with Pituitary Adenoma and ...
https://www.mdpi.com/2076-3425/12/6/796/pdf
pituitary adenoma, hypogonadism, and testosterone. All reviews, case reports, and cohort ... induced the inhibition of GnRH release [34–36].
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70 Hormonal Control of Human Reproduction - OERTX
https://oertx.highered.texas.gov/courseware/lesson/1836/overview
Testosterone, the hormone responsible for the secondary sexual ... This inhibits the release of GnRH and FSH, which will cause spermatogenesis to slow down.
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71 Sex hormone synthesis, regulation, and function
http://www.pathophys.org/sexhormones/
LH stimulates the release of testosterone from Leydig cells. Testosterone feeds back negatively on pituitary LH and hypothalamic GnRH. This effect may be ...
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72 How do you know which T blocker to take? What ... - QueerDoc
https://queerdoc.com/how-do-you-know-which-t-blocker-to-take-what-is-going-on-with-bica/
GnRH agonists reduce the release of precursor hormones by the pituitary gland so that the testes then produce less testosterone. We can also use bicalutamide or ...
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73 Development of gonadotropin-releasing ... - Europe PMC
https://europepmc.org/article/pmc/4220034
RF9 does not cross the blood–brain barrier (Caraty et al., 2012), and this approach ... We next asked whether testosterone inhibited GnRH release at 1 week.
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74 Serum Testosterone: The New "How Much Do You Bench?"
https://robertsontrainingsystems.com/blog/serum-testosterone/
Corticotropin-releasing hormone (CRH) inhibits GnRH secretion and testosterone production. CRH is the master hormone released by the ...
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75 Testosterone Blocker Options for Transgender Women
https://www.verywellhealth.com/testosterone-blockers-for-transgender-women-4582221
Testosterone acts much more strongly than estrogen does. ... Histrelin is a gonadotropin-releasing hormone (GnRH) agonist that is sometimes used as a ...
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76 Peripubertal GnRH and testosterone co-treatment leads to ...
https://psycnet.apa.org/record/2019-49908-010
by D Hough · 2019 · Cited by 2 —
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77 Dopamine and Testosterone: Making the Connection in Male ...
https://sanescohealth.com/blog/male-libido-dopamine-testosterone/
One study observed the impact that dopamine has on GnRH production, and thus testosterone production. Researchers found that the ...
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78 Pituitary Hormones
https://ccpd.ucsf.edu/pituitary-hormones
The hypothalamus regulates the release of FSH and LH through gonadotropin-releasing hormone (GnRH). In males, LH stimulates the testosterone production.
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79 GnRH-R–Targeted Lytic Peptide Sensitizes BRCA Wild-type ...
https://aacrjournals.org/mct/article/18/5/969/92582/GnRH-R-Targeted-Lytic-Peptide-Sensitizes-BRCA-Wild
We provide evidence of a synergistic effect of EP-100 with the PARP inhibitor olaparib in preclinical models of ovarian cancer both in vitro and in vivo, ...
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80 The GnRH Pulse Generator - AIMS Press
https://www.aimspress.com/article/id/1131
The pulsatile secretion of hormones is an efficient way of coding a large variety of chemical messages. The GnRH pulse pattern determines which gonadotropin ...
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81 WHAT ARE NAMES OF ANTINEOPLASTIC GNRH AGONISTS?
https://www.rxlist.com/antineoplastics_gnrh_agonist/drug-class.htm
How Do Antineoplastic GNRH Agonists Work? ... Testosterone promotes the growth of prostate cancer; therefore, GnRH agonists are used to reduce the level of ...
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82 Testosterone Use And Male Infertility - ReproductiveFacts.org
https://www.reproductivefacts.org/news-and-publications/patient-fact-sheets-and-booklets/documents/fact-sheets-and-info-booklets/testosterone-use-and-male-infertility/
Low testosterone does not cause infertility. Sperm production is actually stimulated by hormones other than testosterone. Testosterone is required for sperm ...
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83 Nifty finds: Super-fast-acting hormone blockers used in Sweden
https://genderanalysis.net/2018/06/nifty-finds-super-fast-acting-hormone-blockers-used-in-sweden/
While GnRH agonists cause the GnRH receptors to downregulate after a few weeks and shut down the body's production of testosterone or ...
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84 Testosterone Production: The HPA & HPG Axis [Step-By-Step]
https://androgenhacker.com/testosterone-production
An increased level of testosterone in the blood sends feedback to the hypothalamus that it should suppress the secretion of GnRH. It also sends ...
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85 Significance of GnRH Antagonists in Prostate Cancer - OncLive
https://www.onclive.com/view/significance-of-gnrh-antagonists-in-prostate-cancer
LHRH agonists cause a surge of FSH, LH, and testosterone which, again, can be blocked by using antiandrogens.
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86 Inhibition of the release of GnRH from the hypothalamus will ...
https://www.numerade.com/ask/question/inhibition-of-the-release-of-gnrh-from-the-hypothalamus-will-stimulate-production-of-estrogen-and-progesterone_-initiate-the-flow-phase-of-the-menstrual-cycle-inhibit-secretion-of-gonadotrop-46182/
'Inhibition of the release of GnRH from the hypothalamus will stimulate production of estrogen and progesterone_ initiate the flow phase of the menstrual cycle: ...
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87 Can testosterone alone maintain the gonadotrophin-releasing ...
http://a.xueshu.baidu.com/usercenter/paper/show?paperid=cdd04fd22527120f40e0f3bede4f3aab
These findings demonstrate that cetrorelix reversibly inhibits spermatogenesis in a non-human primate model. Although TB maintained the GnRH ...
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88 How do GnRH analogues work? Zoladex, Prostap and other ...
https://www.youtube.com/watch?v=wZHjwsq5Css
Zero To Finals
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89 Hypothalamus→GnRH→ Pituitary→LH→Testes→Testosterone
https://slideplayer.com/slide/6200038/
Males Hypothalamus→GnRH→ Pituitary→LH→Testes→Testosterone The level of testosterone is under negative-feedback control: a rising level of testosterone ...
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90 Gonadotropin Releasing Hormone (GnRH) Agonists ...
https://www.drawittoknowit.com/course/pharmacology/glossary/pharmacology/gonadotropin-releasing-hormone-gn-rh-agonists-antagonists
They are used to delay ovulation in ART (prevent the LH surge), and in prostate cancer (these drugs avoid the initial testosterone surge caused ...
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91 Low Testosterone & Male Infertility | Loma Linda University
https://lomalindafertility.com/infertility/men/low-testosterone/
NOTE: An important side effect of the low testosterone treatment known as testosterone replacement therapy (TRT) is infertility. TRT can decrease sperm ...
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92 Blood Test: Follicle Stimulating Hormone (FSH) - Kids Health
https://kidshealth.org/en/parents/blood-test-fsh.html
GnRH signals the pituitary gland to release two puberty hormones into the ... to begin producing testosterone, the hormone responsible for the physical ...
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93 Function of seminal fluid to - Human Reproduction - EMBIBE
https://www.embibe.com/questions/Function-of-seminal-fluid-to/EM5278155
... If they fail to do this and condition is not corrected infertility is likely to follow and the risk of testicular cancer is increased Undescended testis ...
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94 Endocrine and Metabolic Medical Emergencies: A Clinician's Guide
https://books.google.com/books?id=X6pSDwAAQBAJ&pg=PA42&lpg=PA42&dq=how+does+testosterone+inhibit+gnrh&source=bl&ots=8dxtzG2_mt&sig=ACfU3U2I0uPATjffKuyYFz8Pvj0tMS-i7g&hl=en&sa=X&ved=2ahUKEwjrjefK6737AhUPkmoFHe-pAxAQ6AF6BQjPAhAD
However, the same gonadal hormones, as well as inhibin and testosterone, inhibit GnRH, as do a number of neurotransmitters, such as kisspeptin, glutamate, ...
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