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Testosterone replacement

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https://www.readbyqxmd.com/read/28941963/effects-of-androgen-deprivation-therapy-on-pain-perception-quality-of-life-and-depression-in-men-with-prostate-cancer
#1
Thiago Gagliano-Jucá, Thomas G Travison, Paul L Nguyen, Philip W Kantoff, Mary-Ellen Taplin, Adam S Kibel, Robert Manley, Kathleen Hally, Richelle Bearup, Yusnie M Beleva, Grace Huang, Robert R Edwards, Shehzad Basaria
CONTEXT: Previous animal and human research suggests that testosterone has anti-nociceptive properties. Castration in male rodents increases pain perception which is reversed by testosterone replacement. Pain perception also improves in hypogonadal men with testosterone therapy. However, it remains unclear whether androgen deprivation therapy (ADT) in men with prostate cancer (PCa) is associated with an increase in pain perception. METHODS: Thirty-seven men with PCa about to undergo ADT with leuprolide acetate (ADT group) were followed prospectively for 6 months to evaluate changes in clinical and experimental pain...
September 20, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28928235/testosterone-protects-high-fat-low-carbohydrate-diet-induced-non-alcoholic-fatty-liver-disease-in-castrated-male-rats-mainly-via-modulating-er-stress
#2
Yue Jia, Jennifer Kuang Yee, Christina Wang, Liana Nikolaenko, Maruja Diaz-Arjonilla, Joshua N Cohen, Samuel W French, Peter Y Liu, YanHe Lue, Wai-Nang Paul Lee, Ronald S Swerdloff
We previously showed that testosterone (T) deficiency enhanced high-fat diet (HFD) induced hepatic steatosis in rats that was independent of insulin resistance, and that T replacement reduced hepatic macrovesicular fat accumulation and inflammation. The present report explores the mechanism of T-protective effects on HFD-induced steatohepatitis. Adult male rats were randomized into four treatment groups for 15 weeks (intact rats on regular chow diet or HFD, and castrated rats on HFD with/without T replacement)...
September 19, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28924485/hypogonadotropic-hypogonadism-in-human-immunodeficiency-virus-infected-men-uncommonly-low-testosterone-levels
#3
Ana Coelho Gomes, José Maria Aragüés, Sílvia Guerra, Joana Fernandes, Mário Rui Mascarenhas
Hypogonadotropic hypogonadism (HH) is common and occurs prematurely in HIV-infected men. However, HH with very low testosterone has not been described. Three men with normal pubertal development and HIV1 diagnosis at the ages of 22, 34 and 35 years. All complained of decreased libido, anejaculation and erectile dysfunction thirteen years, six months and one year after HIV diagnosis, respectively. Two had depressive syndrome and two were treated with antiretroviral therapy. Laboratory tests revealed isolated HH in all...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28923177/androgens-and-cardiovascular-disease-in-women-and-men
#4
REVIEW
Eleni Armeni, Irene Lambrinoudaki
Cardiovascular disease is the leading cause of death in both women and men. Its pathogenesis is multifactorial, with sex hormones playing an important role. Androgens have both direct and indirect effects on the vasculature. This review summarizes evidence on the association of both endogenous and exogenous androgens with subclinical and overt cardiovascular disease in women and men. Concerning women, both high and low levels of endogenous androgens have been associated with cardiovascular disease, while other studies have reported no association...
October 2017: Maturitas
https://www.readbyqxmd.com/read/28920756/sleep-disturbance-as-a-clinical-sign-for-severe-hypogonadism-efficacy-of-testosterone-replacement-therapy-on-sleep-disturbance-among-hypogonadal-men-without-obstructive-sleep-apnea
#5
Kazuyoshi Shigehara, Hiroyuki Konaka, Kazuhiro Sugimoto, Takahiro Nohara, Koji Izumi, Yoshifumi Kadono, Mikio Namiki, Atsushi Mizokami
OBJECTIVE: The present subanalysis of the EARTH study investigates the effects of one year testosterone replacement therapy (TRT) on sleep disturbance among hypogonadal men without obstructive sleep apnea. METHODS: Sleep disturbance was defined as three or more points in question 4 of the aging males symptoms (AMS) questionnaire. All participants completed the AMS scale, International Prostatic Symptoms Score (IPSS), Sexual Health Inventory for Men (SHIM) and Short Form 36 (SF-36) health survey at baseline and after 12 months...
September 18, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/28914503/testosterone-therapy-preserves-muscle-strength-and-power-in-aging-men-with-type-2-diabetes-a-randomized-controlled-trial
#6
L V Magnussen, L G Hvid, A P Hermann, D M Hougaard, B Gram, P Caserotti, M S Andersen
The purpose of the study was to evaluate whether testosterone replacement therapy improves muscle mechanical and physical function in addition to increasing lean leg mass and total lean body mass in aging men with type 2 diabetes and lowered bio-available testosterone (BioT) levels. Thirty-nine men aged 50-70 years with type 2 diabetes and BioT levels <7.3 nmol/L were included from an academic tertiary-care medical center. Patients were randomized to testosterone gel (testosterone replacement therapy, n = 20) or placebo (n = 19) for 24 weeks, applying a double-blinded design...
September 2017: Andrology
https://www.readbyqxmd.com/read/28904054/a-13-steroid-serum-panel-based-on-lc-ms-ms-use-in-detection-of-adrenocortical-carcinoma
#7
David R Taylor, Lea Ghataore, Lewis Couchman, Royce P Vincent, Ben Whitelaw, Dylan Lewis, Salvador Diaz-Cano, Gabriele Galata, Klaus-Martin Schulte, Simon Aylwin, Norman F Taylor
BACKGROUND: Adrenocortical carcinoma (ACC) is a rare malignancy, with an annual incidence of 1 or 2 cases per million. Biochemical diagnosis is challenging because up to two-thirds of the carcinomas are biochemically silent, resulting from de facto enzyme deficiencies in steroid hormone biosynthesis. Urine steroid profiling by GC-MS is an effective diagnostic test for ACC because of its capacity to detect and quantify the increased metabolites of steroid pathway synthetic intermediates...
September 13, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28883919/a-case-of-klinefelter-syndrome-with-hypersexual-desire
#8
Kingsley Okolie, Sumathy Perampalam, Anthony Barker, Christopher J Nolan
Klinefelter syndrome (KS) is a chromosomal disorder affecting males, with the typical karyotype of 47,XXY due to a supernumerary X chromosome, which causes progressive testicular failure resulting in androgen deficiency and infertility. Despite it being the most common sex chromosomal disorder, its diagnosis is easily missed. In addition to its classical clinical features of tall stature, gynaecomastia, small testes, and symptoms and signs of hypogonadism including infertility, KS is also often associated with neurocognitive, behavioural and psychiatric disorders...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28881288/hydroxytriazole-derivatives-as-potent-and-selective-aldo-keto-reductase-1c3-akr1c3-inhibitors-discovered-by-bioisosteric-scaffold-hopping-approach
#9
Agnese C Pippione, Alessandro Giraudo, Davide Bonanni, Irene M Carnovale, Elisabetta Marini, Clara Cena, Annalisa Costale, Daniele Zonari, Klaus Pors, Maria Sadiq, Donatella Boschi, Simonetta Oliaro-Bosso, Marco L Lolli
The aldo-keto reductase 1C3 isoform (AKR1C3) plays a vital role in the biosynthesis of androgens, making this enzyme an attractive target for castration-resistant prostate cancer therapy. Although AKR1C3 is a promising drug target, no AKR1C3-targeted agent has to date been approved for clinical use. Flufenamic acid, a non-steroidal anti-inflammatory drug, is known to potently inhibit AKR1C3 in a non-selective manner as COX off-target effects are also observed. To diminish off-target effects, we have applied a scaffold hopping strategy replacing the benzoic acid moiety of flufenamic acid with an acidic hydroxyazolecarbonylic scaffold...
August 24, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28873196/testosterone-replacement-therapy-and-cardiovascular-risk-a-closer-look-to-additional-parameters
#10
T Craig Cheetham, Stephen K VanDenEeden, Steven J Jacobsen
No abstract text is available yet for this article.
September 1, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28873188/testosterone-replacement-therapy-and-cardiovascular-risk-a-closer-look-at-additional-parameters
#11
Konstantinos Stavropoulos, Konstantinos P Imprialos, Michael Doumas
No abstract text is available yet for this article.
September 1, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28870779/epitestosterone-and-testosterone-replacement-in-immature-castrated-rats-changes-main-testicular-developmental-characteristics
#12
Fernanda Carvalho Cavalari, Luciana Abreu da Rosa, Gustavo Monteiro Escott, Tadeu Dourado, Alexandre Luz de Castro, Maria Beatriz da Fonte Kohek, Maria Flávia Marques Ribeiro, Wania Aparecida Partata, Luciano Stürmer de Fraga, Eloísa da Silveira Loss
Epitestosterone is the 17α-epimer of testosterone and has been described as an anti-androgen, since it inhibits the effects produced by testosterone and dihydrotestosterone via the nuclear androgen receptor (nAR). However, epitestosterone also displays an effect which is similar to the non-classical effect of testosterone, depolarizing the membrane potential of Sertoli cells and inducing a rapid Ca(2+) uptake. This study aimed to investigate the effects of a treatment with epitestosterone on developmental parameters of immature rats...
September 1, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28863017/debate-position-cognition-and-mood-are-not-improved-in-men-administered-exogenous-testosterone-therapy
#13
Swaytha Yalamanchi, Adrian Dobs
PURPOSE OF REVIEW: The purpose of this article is to provide an overview of the increasing evidence suggesting that exogenous testosterone therapy is not associated with improvements in cognition or mood. This article is part of a series, in this issue, in which authors are assigned opinion pieces on controversial topics pertaining to testosterone replacement. RECENT FINDINGS: Testosterone is increasingly being prescribed. Particularly in the setting of recent data suggestive of possible cardiovascular risk associated with its use; a clear understanding of the domains of health that improve with exogenous testosterone use is important...
August 24, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28859305/cardiovascular-benefits-and-risks-of-testosterone-replacement-another-warning
#14
Françoise Lenfant, Jean-Francois Arnal
No abstract text is available yet for this article.
September 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28858868/association-between-testosterone-and-mortality-risk-among-u-s-males-receiving-dialysis
#15
Jerry Yu, Vanessa A Ravel, Amy S You, Elani Streja, Matthew B Rivara, Praveen K Potukuchi, Steven M Brunelli, Csaba P Kovesdy, Kamyar Kalantar-Zadeh, Connie M Rhee
BACKGROUND: Among the general population, low circulating testosterone levels are associated with higher risk of cardiovascular disease and death. While testosterone deficiency is common in dialysis patients, studies of testosterone and mortality in this population are ambiguous and overlapping. We hypothesized that lower testosterone levels are associated with higher mortality in male dialysis patients. METHODS: We examined a nationally representative cohort of male dialysis patients from a large US dialysis organization who underwent one or more total testosterone measurements from 1/2007 to 12/2011...
September 1, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28835763/the-effects-of-testosterone-deficiency-and-its-replacement-on-inflammatory-markers-in-rats-a-pilot-study
#16
Kok-Yong Chin, Soelaiman Ima-Nirwana
BACKGROUND: Testosterone deficiency is linked to low-grade inflammation in humans, but this condition is not replicated in an animal study. The current study aims at determining the effects of testosterone deficiency and its replacement on the circulating inflammatory cytokine level in orchidectomized male rats. METHODS: Three-month-old Sprague-Dawley male rats (n = 18) were randomized equally into 3 groups. Bilateral orchidectomy was performed on 2 groups. The sham group was subjected to similar surgical stress, but their testes were retained...
January 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28819863/effects-of-testosterone-treatment-on-hypothalamic-neuroplasticity-in-female-to-male-transgender-individuals
#17
Georg S Kranz, Andreas Hahn, Ulrike Kaufmann, Martin Tik, Sebastian Ganger, René Seiger, Allan Hummer, Christian Windischberger, Siegfried Kasper, Rupert Lanzenberger
Diffusion-weighted imaging (DWI) is used to measure gray matter tissue density and white matter fiber organization/directionality. Recent studies show that DWI also allows for assessing neuroplastic adaptations in the human hypothalamus. To this end, we investigated a potential influence of testosterone replacement therapy on hypothalamic microstructure in female-to-male (FtM) transgender individuals. 25 FtMs were measured at baseline, 4 weeks, and 4 months past treatment start and compared to 25 female and male controls...
August 17, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28817886/re-effects-of-testosterone-replacement-therapy-on-hypogonadal-men-with-osteopenia-or-osteoporosis-a-subanalysis-of-a-prospective-randomized-controlled-study-in-japan-earth-study
#18
https://www.readbyqxmd.com/read/28816783/association-of-testosterone-replacement-therapy-and-the-incidence-of-a-composite-of-postoperative-in-hospital-mortality-and-cardiovascular-events-in-men-undergoing-noncardiac-surgery
#19
Maged Y Argalious, Jing You, Guangmei Mao, Daniel Ramos, Sandeep Khanna, Kamal Maheshwari, Carlos Trombetta
BACKGROUND: Whether patients on testosterone replacement therapy undergoing noncardiac surgery have an increased risk of postoperative in-hospital mortality and cardiovascular events remains unknown. We therefore sought to identify the impact of testosterone replacement on the incidence of a composite of postoperative in-hospital mortality and cardiovascular events in men undergoing noncardiac surgery. METHODS: Data from male American Society of Anesthesiologists I through IV patients 40 yr or older who underwent noncardiac surgery between May 2005 and December 2015 at the Cleveland Clinic (Cleveland, Ohio) main campus were included...
September 2017: Anesthesiology
https://www.readbyqxmd.com/read/28811197/seasonal-changes-in-plasma-testosterone-and-cortisol-suggest-an-androgen-mediated-regulation-of-the-pituitary-adrenal-axis-in-the-tarabul-s-gerbil-gerbillus-tarabuli-thomas-1902
#20
Yamina Zatra, Naouel Aknoun-Sail, Arezki Kheddache, Abdelouafi Benmouloud, Salima Charallah, Elara N Moudilou, Jean-Marie Exbrayat, Farida Khammar, Zaina Amirat
In the desert gerbil Gerbillus tarabuli (Thomas, 1902), cortisol is the main glucocorticosteroid produced by the adrenal glands. Plasma cortisol concentrations show highest values when testosterone is reduced and lowest values during the breeding season which occurs from early winter to late spring. In order to specify the implication of testicular androgens in these corticosteroid seasonal variations we investigated the effects induced by gonadectomy performed during the breeding season on the pituitary adrenal axis...
August 12, 2017: General and Comparative Endocrinology
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