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Testosterone AND Supplement

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https://www.readbyqxmd.com/read/29656047/the-complex-association-between-metabolic-syndrome-and-male-hypogonadism
#1
Christina Dimopoulou, Dimitrios G Goulis, Giovanni Corona, Mario Maggi
BACKGROUND: The complex association between metabolic syndrome (MetS) and male hypogonadism is well established. A number of observational studies show that low testosterone is associated with insulin resistance and an increased risk for diabetes mellitus and MetS in men. AIMS: To elucidate the association between MetS and male hypogonadism, present epidemiological data on the co-existence of the two comorbidities, enlighten the underlying pathophysiology and appraise the effects of testosterone supplementation therapy (TTh) and lifestyle modifications on MetS and body composition in men...
April 12, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29643806/diverged-effects-of-piperine-on-testicular-development-stimulating-leydig-cell-development-but-inhibiting-spermatogenesis-in-rats
#2
Xianwu Chen, Fei Ge, Jianpeng Liu, Suhao Bao, Yong Chen, Dongli Li, Yong Li, Tongliang Huang, Xiaofang Chen, Qiqi Zhu, Qingquan Lian, Ren-Shan Ge
Background: Piperine is the primary pungent alkaloid isolated from the fruit of black peppercorns. Piperine is used frequently in dietary supplements and traditional medicines. The objective of the present study was to investigate the effects of piperine on the testis development in the pubertal rat. Methods: Piperine (0 or 5 or 10 mg/kg) was gavaged to 35-day-old male Sprague-Dawley rats for 30 days. Serum levels of testosterone (T), luteinizing hormone (LH), and follicle-stimulating hormone (FSH) were measured...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29625166/neuroprotective-effect-of-a-physiological-ratio-of-testosterone-and-estradiol-on-corticosterone-induced-apoptosis-in-pc12-cells-via-traf6-tak1-pathway
#3
Rui Peng, Wen Dai, Yan Li
Clinical and experimental studies suggested that testosterone or estradiol alone supplementation may have antidepressant-like effects. However, the synergistic effect of testosterone/estradiol on the treatment of depression and the underlying mechanism remain largely unknown. Here, we hypothesized that an appropriate dosage of testosterone combined with estradiol may became a new therapeutic strategy in depression. Our results indicated that an appropriate testosterone/estradiol ratio of 10:1 (10-8  mol/L testosterone and 10-9  mol/L estradiol) was found, which has a significant synergistic anti-apoptotic effect on PC12 cells injury stimulated by corticosterone...
April 3, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29605576/effects-of-maternal-dietary-selenium-se-enriched-yeast-on-testis-development-testosterone-level-and-testicular-steroidogenesis-related-gene-expression-of-their-male-kids-in-taihang-black-goats
#4
Lei Shi, Ruigao Song, Xiaolei Yao, Yunli Duan, Youshe Ren, Chunxiang Zhang, Wenbin Yue, Fulin Lei
To investigate the effects of maternal dietary selenium (Se-enriched yeast) on testis development, testosterone level and steroidogenesis-related gene expression in testis of their male kids, selected pregnant Taihang Black Goats were randomly allotted to four treatment groups. They were fed the basal gestation and lactation diets supplemented with 0 (control), 0.5, 2.0 and 4.0 mg of Se/kg DM. Thirty days after weaning, testes were collected from the kids. After the morphological development status of testis was examined, tissue samples were collected for analyzing testosterone concentration and histological parameters...
March 26, 2018: Theriogenology
https://www.readbyqxmd.com/read/29601923/evaluation-and-management-of-testosterone-deficiency-aua-guideline
#5
John P Mulhall, Landon W Trost, Robert E Brannigan, Emily G Kurtz, J Bruce Redmon, Kelly A Chiles, Deborah J Lightner, Martin M Miner, M Hassan Murad, Christian J Nelson, Elizabeth A Platz, Lakshmi V Ramanathan, Ronald W Lewis
PURPOSE: There has been a marked increase in testosterone prescriptions in the past decade resulting in a growing need to give practicing clinicians proper guidance on the evaluation and management of the testosterone deficient patient. MATERIALS & METHODS: A systematic review utilized research from the Mayo Clinic Evidence Based Practice Center and additional supplementation by the authors. Evidence-based statements were based on body of evidence strength Grade A, B, or C and were designated as Strong, Moderate, and Conditional Recommendations with additional statements presented in the form of Clinical Principles or Expert Opinions...
March 27, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29571766/dehydroepiandrosterone-reduces-accumulation-of-lipid-droplets-in-primary-chicken-hepatocytes-by-biotransformation-mediated-via-the-camp-pka-erk1-2-signaling-pathway
#6
Longlong Li, Chongyang Ge, Dian Wang, Lei Yu, Jinlong Zhao, Haitian Ma
Dehydroepiandrosterone (DHEA) is commonly used as a nutritional supplement to control fat deposition, but the mechanism of this action is poorly understood. In this study, we demonstrated that DHEA increased phosphorylation of AMP-activated protein kinase (p-AMPK). Elevated p-AMPK levels resulted in reduced expression of sterol regulatory element binding protein-1c, acetyl CoA carboxylase, fatty acid synthase and enhanced expression of peroxisome proliferators-activated receptor α and carnitine palmitoyl transferase-I, ultimately leading to the reduction of lipid droplet accumulation in primary chicken hepatocytes...
March 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29570536/efficacy-of-exercise-and-testosterone-to-mitigate-atrophic-cardiovascular-remodeling
#7
Jessica M Scott, David Martin, Robert Ploutz-Snyder, Meghan Downs, E Lichar Dillon, Melinda Sheffield-Moore, Randall J Urban, Lori L Ploutz-Snyder
PURPOSE: Early and consistent evaluation of cardiac morphology and function throughout an atrophic stimulus is critically important for the design and optimization of interventions. This randomized, controlled trial was designed to: 1) characterize the time course of unloading-induced morpho-functional remodeling, and 2) to examine the effects of exercise with and without low dose testosterone supplementation on cardiac biomarker, structural, and functional parameters during unloading...
March 22, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29570535/overview-of-the-nasa-70-day-bed-rest-study
#8
Ronita L Cromwell, Jessica M Scott, Meghan Downs, Patrice O Yarbough, Susana B Zanello, Lori Ploutz-Snyder
PURPOSE: The purpose of this paper is to provide an overview of the NASA 70-day Bed Rest Study. The integrated complement of investigations and the standardized bed rest environment that served as the platform for this study complement are described. Outcomes of the studies will not be presented here, but will be reported in separate publications. METHODS: A set of studies running in an integrated fashion along the entire period (pre-, in- and post-bed rest) and utilizing the same subjects is referred in this paper as "the campaign" or "complement"...
March 22, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29557189/use-of-testosterone-in-men-infected-with-human-immunodeficiency-virus-in-the-veterans-healthcare-system
#9
Guneet K Jasuja, Shalender Bhasin, Adam J Rose, Joel I Reisman, Avy Skolnik, Dan R Berlowitz, Allen L Gifford
Testosterone supplementation has been widely used in those infected with human immunodeficiency virus (HIV) for hypogonadism, and wasting. But with effective antiretroviral therapy and increasing recognition of atherosclerotic disease and adults infected with HIV, the risks of inappropriate testosterone use in HIV-infected patients are far better recognized than previously. Testosterone use has expanded among U.S. males, but few studies have examined prescribing in those infected with HIV. In a national cohort of males with at least one outpatient prescription in the Veterans Health Administration (VHA), we examined 9475 HIV-infected males, including 2484 who had received testosterone and a randomly selected 6991 who had not...
March 19, 2018: AIDS Care
https://www.readbyqxmd.com/read/29546692/vitamin-d-supplementation-does-not-prevent-the-testosterone-decline-in-males-with-advanced-heart-failure-the-evita-trial
#10
Armin Zittermann, Jana B Ernst, Sylvana Prokop, Uwe Fuchs, Jens Dreier, Joachim Kuhn, Cornelius Knabbe, Heiner K Berthold, Ioanna Gouni-Berthold, Jan F Gummert, Jochen Börgermann, Stefan Pilz
PURPOSE: Observational studies indicate a positive association between circulating 25-hydroxyvitamin D (25OHD) and testosterone (T) concentrations. Because low 25OHD concentrations and T deficiency are considered to be a generalized phenomenon in patients with advanced heart failure (HF), we aimed to investigate whether vitamin D supplementation has beneficial effects on T indices in these patients. METHODS: In a pre-specified secondary analysis of the EVITA (effect of vitamin D on mortality in heart failure) randomized controlled trial, we analyzed in male subjects with 25OHD concentrations < 75 nmol/L the effect of a daily vitamin D3 supplement of 4000 IU for 3 years (n = 71) vs...
March 15, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29544063/l-arginine-supplementation-does-not-improve-muscle-function-during-recovery-from-resistance-exercise
#11
Walquiria Batista Andrade, Jeferson Lucas Jacinto, Douglas Kratki da Silva, Mirela Casonato Roveratti, José Maria Estoche, Douglas Benedito Oliveira, Mario Carlos Welin Balvedi, Rubens A da Silva, Andreo Fernando Aguiar
The purpose of this study was to investigate the effects of L-arginine (L-arg) supplementation on muscle recovery process after a single session of high-intensity resistance exercise (RE). 20 healthy young adult (22.8 ± 3.4 y) participants were assigned to two groups (N = 10/group): a placebo-supplement group (PLA) or a L-arginine-supplement group (ARG). The groups completed a session of high-intensity RE (0h), and three subsequent fatigue tests sessions (at 24, 48 and 72 h post-exercise) to assess the time course of muscle recovery...
March 15, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29535939/a-prospective-observational-study-of-osteoporosis-in-men
#12
Narendra Kotwal, Vimal Upreti, Amit Nachankar, K V S Hari Kumar
Context: The number of men afflicted with osteoporosis is unknown. Aims: This study aims to determine the prevalence of osteoporosis in men. Settings and Design: This was a prospective, observational study. Subjects and Methods: A total of 200 male attendants of patients attending endocrine outpatient department and who were >55 years were recruited for the study. All the patients with osteopenia and osteoporosis were advised lifestyle interventions, supplementation with calcium carbonate (1000-1500 mg/day) and 25-hydroxyl-Vitamin D (400-600 IU/day) and bisphosphonates if indicated...
January 2018: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29532075/effect-of-protein-intake-on-lean-body-mass-in-functionally-limited-older-men-a-randomized-clinical-trial
#13
Shalender Bhasin, Caroline M Apovian, Thomas G Travison, Karol Pencina, Lynn L Moore, Grace Huang, Wayne W Campbell, Zhuoying Li, Andrew S Howland, Ruo Chen, Philip E Knapp, Martha R Singer, Mitali Shah, Kristina Secinaro, Richard V Eder, Kathleen Hally, Haley Schram, Richelle Bearup, Yusnie M Beleva, Ashley C McCarthy, Erin Woodbury, Jennifer McKinnon, Geeta Fleck, Thomas W Storer, Shehzad Basaria
Importance: The Institute of Medicine set the recommended dietary allowance (RDA) for protein at 0.8 g/kg/d for the entire adult population. It remains controversial whether protein intake greater than the RDA is needed to maintain protein anabolism in older adults. Objective: To investigate whether increasing protein intake to 1.3 g/kg/d in older adults with physical function limitations and usual protein intake within the RDA improves lean body mass (LBM), muscle performance, physical function, fatigue, and well-being and augments LBM response to a muscle anabolic drug...
March 12, 2018: JAMA Internal Medicine
https://www.readbyqxmd.com/read/29525207/comparative-effects-of-zinc-oxide-zinc-oxide-nanoparticle-and-zinc-methionine-on-hatchability-and-reproductive-variables-in-male-japanese-quail
#14
Zeinab Khoobbakht, Mehrdad Mohammadi, Mohammad Roostaei-Ali Mehr, Fahimeh Mohammadghasemi, Mohammad Mehdi Sohani
The objective was to examine the effect of different dietary zinc sources on reproduction of male Japanese quail. A total of 512 quail chicks (day-old) were divided into four groups with four replications for a period of 42 days. After this period, excess chicks were removed to attain the ratio of one male to three females and 16 quail in each subgroup. At 52 to 60 d of age, the eggs were collected and incubated. The basal diet (control) contained no zinc and the other three experimental diets were supplemented with 25 and 50 mg/kg zinc from zinc oxide (ZnO), zinc oxide nanoparticles (ZnONP) and zinc-methionine (Zn-Met) for 1 to 35 and 36 to 60 days, respectively...
February 23, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29521706/anabolic-steroid-effect-on-the-liver
#15
Mark W Niedfeldt
Anabolic steroids are synthetic derivatives of testosterone shown to increase muscle size and strength. Chemical substitutions on the testosterone molecule cause increased potency and duration of action. The 17-α-alkylation modification allows steroids to be taken orally, but the slower clearance in the liver makes them more hepatotoxic. The frequency and severity of side effects depends on several factors including the formulation of the drug, route of administration, dosage, duration of use, and individual sensitivity and response...
March 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29520734/the-effect-of-12-month-dehydroepiandrosterone-supplementation-on-the-menstrual-pattern-ovarian-reserve-markers-and-safety-profile-in-women-with-premature-ovarian-insufficiency
#16
Queenie Ho Yan Wong, Tracy Wing Yee Yeung, Sofie Shuk Fei Yung, Jennifer Ka Yee Ko, Hang Wun Raymond Li, Ernest Hung Yu Ng
PURPOSE: To evaluate the effect of 12-month DHEA supplementation on menstrual pattern and ovarian reserve markers in women with premature ovarian insufficiency (POI) METHODS: This is a prospective observational study. Women with POI were given DHEA supplements (25 mg three times daily) for 12 months. Sonographic assessment for ovarian volume and antral follicle count (AFC) and serum measurement for anti-Mullerian hormone (AMH), follicle stimulating hormone (FSH), estradiol, testosterone, liver function, and hemoglobin level were performed at baseline and monthly for 13 months after the supplementation...
March 9, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29511802/effects-of-testosterone-supplement-treatment-in-hypogonadal-adult-males-with-t2dm-a-meta-analysis-and-systematic-review
#17
Jianzhong Zhang, Bin Yang, Wenhui Xiao, Xiao Li, Hongjun Li
PURPOSE: Testosterone supplement treatment (TST) is a classic therapy for hypogonadal men with type 2 diabetes mellitus (T2DM), but the effects of TST in different studies are inconsistent. We conducted this meta-analysis to evaluate the precise role of TST in hypogonadal men with T2DM. METHODS: PubMed, Embase, Cochrane Library and Web of Science were searched to identify qualified randomized controlled trials (RCTs). Pooled mean differences (MDs) with 95% confidence intervals (CIs) were calculated to measure the specific effects of TST...
March 6, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29508695/%C3%AE-hydroxy-%C3%AE-methylbutyrate-free-acid-alters-cortisol-responses-but-not-myofibrillar-proteolysis-during-a-24-h-fast
#18
Grant M Tinsley, Amy H Givan, Austin J Graybeal, Michael I Villarreal, Austin G Cross
This study was a randomised, double-blind, placebo-controlled cross-over trial examining the effects of β-hydroxy β-methylbutyrate free acid (HMB-FA) supplementation on muscle protein breakdown, cortisol, testosterone and resting energy expenditure (REE) during acute fasting. Conditions consisted of supplementation with 3 g/d HMB-FA or placebo during a 3-d meat-free diet followed by a 24-h fast. Urine was collected before and during the 24-h fast for analysis of 3-methylhistidine:creatinine ratio (3MH:CR)...
March 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29500160/therapist-assisted-progressive-resistance-training-protein-supplements-and-testosterone-injections-in-frail-older-men-with-testosterone-deficiency-protocol-for-a-randomized-placebo-controlled-trial
#19
Rune Rasmussen, Mette Midttun, Tine Kolenda, Anne-Mette Ragle, Thea Winther Sørensen, Anders Vinther, Bo Zerahn, Maria Pedersen, Karsten Overgaard
BACKGROUND: Fall accidents are a major cause of mortality among the elderly and the leading cause of traumatic brain injury. After a fall, many elderly people never completely recover and need help in coping with everyday life. Due to the increasing older population in the world, injuries, disabilities, and deaths caused by falls are a growing worldwide problem. Muscle weakness leads to greatly increased risk of falling, decreased quality of life, and decline in functional capacity. Muscle mass and muscle power decrease about 40% from age 20 to 80 years, and the level of testosterone decreases with age and leads to impaired muscle mass...
March 2, 2018: JMIR Research Protocols
https://www.readbyqxmd.com/read/29468912/hormone-treatments-in-congestive-heart-failure
#20
Lei Lei, Yuanjie Mao
The common ultimate pathological feature for all cardiovascular diseases, congestive heart failure (CHF), is now considered as one of the main public health burdens that is associated with grave implications. Neurohormonal systems play a critical role in cardiovascular homeostasis, pathophysiology, and cardiovascular diseases. Hormone treatments such as the newly invented dual-acting drug valsartan/sacubitril are promising candidates for CHF, in addition to the conventional medications encompassing beta receptor blockers, angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, and mineralocorticoid receptor antagonists...
January 1, 2018: Journal of International Medical Research
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