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https://www.readbyqxmd.com/read/29678855/de-novo-sox10-nonsense-mutation-in-a-patient-with-kallmann-syndrome-deafness-iris-hypopigmentation-and-hyperthyroidism
#1
Fang Wang, Shaoli Zhao, Yanhong Xie, Wenjun Yang, Zhaohui Mo
Kallmann syndrome (KS) is a clinically and genetically heterogeneous disorder characterized by hypogonadotropic hypogonadism and olfactory dysfunction. Recently, mutations in SOX10, a well-known causative gene of Waardenburg syndrome (WS), have been identified in a few KS patients with additional developmental defects including hearing loss. However, the understanding of SOX10 mutation associates with KS and other clinical consequences remains fragmentary. A 30-year-old Chinese male patient presented with no pubertal sex development when he was at the age of twelve years...
March 2018: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/29678493/analysis-and-validation-of-a-new-extended-method-for-estimating-plasma-free-cortisol-including-neutrophil-elastase-and-competition-from-other-steroids
#2
Johanne Gudmand-Hoeyer, Johnny T Ottesen
A non-linear mechanistic model for the distribution of cortisol in plasma on free and bound forms is proposed. The influence of progesterone, testosterone and neutrophil elastase on the cortisol distribution in the blood is investigated. The activity of neutrophil elastase is directly included in the model with the concentration of elastase and the kinetic constants describing the activity of elastase collected in one single input variable. The model is very sensitive towards this input variable and fits data excellently, when it is allowed to be subject specific...
April 17, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29675278/adrenocorticotropic-hormone-secreting-pheochromocytoma-underlying-glucocorticoid-induced-pheochromocytoma-crisis
#3
Gil A Geva, David J Gross, Haggi Mazeh, Karine Atlan, Iddo Z Ben-Dov, Matan Fischer
Context: Pheochromocytomas are hormone secreting tumors of the medulla of the adrenal glands found in 0.1-0.5% of patients with hypertension. The vast majority of pheochromocytomas secrete catecholamines, but they have been occasionally shown to also secrete interleukins, calcitonin, testosterone, and in rare cases adrenocorticotropic hormone. Pheochromocytoma crisis is a life threatening event in which high levels of catecholamines cause a systemic reaction leading to organ failure. Case Description: A 70-year-old man was admitted with acute myocardial ischemia following glucocorticoid administration as part of an endocrine workup for an adrenal mass...
2018: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/29668033/sexual-dimorphism-in-postnatal-gonadotropin-levels-in-infancy-reflects-diverse-maturation-of-the-ovarian-and-testicular-hormone-synthesis
#4
Tanja Kuiri-Hänninen, Leo Dunkel, Ulla Sankilampi
BACKGROUND: The postnatal gonadotropin surge is sexually dimorphic: FSH levels predominate in girls and LH levels in boys. However, in preterm (PT) girls, both gonadotropin levels are higher than in PT boys. OBJECTIVE: To evaluate how gonadal maturation contributes to the sex differences in FSH and LH. DESIGN: Monthly follow-up of 58 full-term (FT, 29 boys) and 67 PT (33 boys) infants from one week (D7) to six months of age (M1-M6). Analyses were also done according to postmenstrual (PM) age in PT infants...
April 18, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29665142/risk-factors-for-late-onset-hypogonadism
#5
Q T Yang, K S Wu, Z J Li, W C Li, L Lu, H Q Wu, Y Y Zhuang, X X Sui
The European Male Aging Study (EMAS) has recently defined strict diagnostic criteria for late-onset hypogonadism (LOH) including the levels of serum total testosterone (TT), free testosterone (FT) and three sexual symptoms. However, there is no report on risk factors for LOH using these criteria. In this study, we investigated risk factors for LOH based on these criteria. We recruited 277 men (aged 36-80 years) who completed both a health check-up and two questionnaires (a health and lifestyle questionnaire, and a sexual function questionnaire)...
April 17, 2018: Andrologia
https://www.readbyqxmd.com/read/29665107/a-case-of-a-rare-variant-of-klinefelter-syndrome-47-xy-i-x-q10
#6
T Kondo, S Kuroda, K Usui, K Mori, T Asai, T Takeshima, T Kawahara, H Hamanoue, H Uemura, Y Yumura
Klinefelter syndrome is a condition in which a male patient has one Y chromosome and one or more extra X chromosomes. It is the most common sex chromosome disorder. Klinefelter syndrome is distinguished by many clinical features, such as infertility, high gonadotropin and low testosterone levels, increased height, and sparse body and facial hair. We report the case of a 32-year-old man who visited our hospital complaining of male infertility. Semen analysis showed azoospermia, and chromosomal analysis revealed a 47,XY,i(X)(q10) karyotype, which is a rare variant of Klinefelter syndrome...
April 17, 2018: Andrologia
https://www.readbyqxmd.com/read/29664663/effects-of-probiotic-supplementation-on-hormonal-profiles-biomarkers-of-inflammation-and-oxidative-stress-in-women-with-polycystic-ovary-syndrome-a-randomized-double-blind-placebo-controlled-trial
#7
Maryam Karamali, Sara Eghbalpour, Sajad Rajabi, Mehri Jamilian, Fereshteh Bahmani, Maryam Tajabadi-Ebrahimi, Fariba Keneshlou, Seyyed Mehdi Mirhashemi, Maryam Chamani, Sara Hashem Gelougerdi, Zatollah Asemi
BACKGROUND: To the best of our knowledge, data on effects of probiotic administration on hormonal profiles, biomarkers of inflammation and oxidative stress in women with polycystic ovary syndrome (PCOS) are scarce. This investigation was conducted to assess the effects of probiotic supplementation on hormonal profiles, biomarkers of inflammation and oxidative stress in women with PCOS. METHODS: This randomized, double-blind, placebo-controlled trial was conducted on 60 women with PCOS, aged 18-40 years old...
January 1, 2018: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29661690/the-history-of-testosterone-and-the-evolution-of-its-therapeutic-potential
#8
REVIEW
Abraham Morgentaler, Abdulmaged Traish
INTRODUCTION: Testosterone therapy has been controversial since its synthesis in the 1930s to the present day. Testosterone's history provides depth and context for current controversies. AIM: To review the history of testosterone therapy from its initial synthesis in the 1930s to the modern day. METHODS: Expert review of the literature. MAIN OUTCOME MEASURES: Impactful events in the history of testosterone. RESULTS: By the 1940s there was already a fascinating literature that described the many symptomatic benefits of testosterone therapy that are recognized today...
April 13, 2018: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/29660718/seasonal-variations-of-steroid-hormones-released-by-wastewater-treatment-plants-to-river-water-and-sediments-distribution-between-particulate-and-dissolved-phases
#9
Hadis Yarahmadi, Sung Vo Duy, Mounia Hachad, Sarah Dorner, Sébastien Sauvé, Michèle Prévost
Extensive environmental monitoring was conducted in an urban river impacted by multiple combined sewer overflows (CSOs) and wastewater treatment plant (WWTP) discharge points. Temporal and spatial distributions of dissolved and particulate steroids (progesterone (Prog), testosterone (Testo), medroxyprogesterone (MDRXY-Prog), levonorgestrel (Levo), norethindrone (Nore), estrone (E1), estradiol (E2), estriol (E3), and 17α-ethinylestradiol (EE2)) were investigated in sewage, WWTP effluents, receiving river water and sediments, and in drinking water plant (DWP) intakes...
April 13, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29658833/gonadopenia-and-aging-in-men
#10
Sandeep Singh Dhindsa, Michael S Irwig, Kathleen Wyne
OBJECTIVE: The decrease in testosterone levels that occurs with aging has become an important clinical issue both due to the growth of the geriatric population and patient interest in testosterone therapy. The decision to assess for testosterone deficiency and the ability to determine whether the benefits exceed the risks require a comprehensive evaluation of the aging patient. This article is part of a series of papers focused on the endocrinology of aging. This review addresses common issues needed for clinical decision making, including how to interpret test results, differential diagnosis, potential impact of testosterone treatment on insulin resistance and cardiovascular disease, and options for therapy...
April 2018: Endocrine Practice
https://www.readbyqxmd.com/read/29656047/the-complex-association-between-metabolic-syndrome-and-male-hypogonadism
#11
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/29651127/testosterone-deficiency-weakness-and-multimorbidity-in-men
#12
Mark D Peterson, Aleksandr Belakovskiy, Ryan McGrath, Joshua F Yarrow
The purposes of this study were to evaluate the association between total testosterone (TT) deficiency and weakness on multimorbidity in men. Analyses were performed to examine the prevalence of multimobidity among young, middle-aged, and older men, with and without testosterone deficiency. Multivariate logistic models were also used to determine the association between age-specific TT tertiles and multimorbidity, adjusting for key sociodemographic variables, as well as a secondary analysis adjusted for grip strength...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29650456/-androgens-and-cardiovascular-risk-a-series-of-case-report-in-the-french-and-canadian-pharmacovigilance-databases
#13
M Rochoy, R Thomas, J Béné, D Deleplanque, M-C Vantyghem, S Gautier, D Deplanque
INTRODUCTION: Age-related androgenic deficiency (DALA) is a pathology that is increasingly cited in recent publications. The cardiovascular risk of testosterone is debated: present for the FDA, absent for the European Medicines Agency in 2015. Our objective was to analyze the association between androgens and vascular pathologies in adverse reactions reported in pharmacovigilance databases. MATERIAL AND METHOD: We conducted a retrospective case series study of the French and Canadian pharmacovigilance databases for the period 2005-2015...
April 9, 2018: Progrès en Urologie
https://www.readbyqxmd.com/read/29642620/rhodobacter-sphaeroides-extract-lycogen%C3%A2-attenuates-testosterone-induced-benign-prostate-hyperplasia-in-rats
#14
Chiang-Ting Wang, Ya-Yun Wang, Wen-Sheng Liu, Chun-Ming Cheng, Kuo-Hsun Chiu, Li-Lian Liu, Xue-Zhu Liu, Zhi-Hong Wen, Ya-Huey Chen, Tsung-Ming Chen
Benign prostate hyperplasia (BPH) is one of the most common urological problems in mid-aged to elderly men. Risk factors of BPH include family history, obesity, type 2 diabetes, and high oxidative stress. The main medication classes for BPH management are alpha blockers and 5α-reductase inhibitors. However, these conventional medicines cause adverse effects. Lycogen™, extracted from Rhodobacter sphaeroides WL-APD911, is an anti-oxidant and anti-inflammatory compound. In this study, the effect of Lycogen™ was evaluated in rats with testosterone-induced benign prostate hyperplasia (BPH)...
April 10, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29627606/gestational-exposure-to-ziram-disrupts-rat-fetal-leydig-cell-development
#15
Jianpeng Liu, Yiyan Wang, Yinghui Fang, Chaobo Ni, Leikai Ma, Wenwen Zheng, Suhao Bao, Xiaoheng Li, Qingquan Lian, Ren-Shan Ge
Ziram is an endocrine disruptor and may cause birth abnormality of the male reproductive system. However, the effects of ziram on fetal Leydig cell (FLC) development are still unknown. The objective of the present study was to determine the endocrine-disrupting effect of ziram on rat FLC development after gestational exposure. Pregnant Sprague Dawley dams were randomly divided into 5 groups and were gavaged with 0 (corn oil, the control), 1, 2, 4, or 8 mg/kg ziram from gestational day 12 (GD12) to GD21. FLC development was evaluated by measuring serum testosterone, FLC number and distribution, and the expression levels of Leydig and Sertoli cell genes...
March 21, 2018: Chemosphere
https://www.readbyqxmd.com/read/29624522/low-energy-availability-plasma-lipids-and-hormonal-profiles-of-recreational-athletes
#16
Katherine Black, Joanne Slater, Rachel C Brown, Rebecca Cooke
Black, K, Slater, J, Brown, RC, and Cooke, R. Low energy availability, plasma lipids, and hormonal profiles of recreational athletes. J Strength Cond Res XX(X): 000-000, 2018-It has been postulated that low energy availability (LEA) impacts bone health, hormonal concentrations, and cardiovascular function. This study describes the lipid levels, hormonal profiles, and nutrient intakes of recreationally active adults at risk of LEA compared with those not at risk. Thirty-eight women who meet or exceed the New Zealand guidelines for physical activity participated...
April 5, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29624102/exogenous-testosterone-does-not-induce-or-exacerbate-the-metabolic-features-associated-with-pcos-among-transgender-men
#17
Kelly J Chan, Jennifer J Liang, Divya Jolly, Jamie D Weinand, Joshua D Safer
OBJECTIVES: Polycystic ovarian syndrome (PCOS) is a complex condition which can include menstrual irregularity, metabolic derangement, and increased androgen levels. The mechanism of PCOS is unknown. Some suggest that excess production of androgens by the ovaries may cause or exacerbate the metabolic findings. The purpose of this study was to assess the role of increased testosterone on metabolic parameters on individuals presumed to be chromosomally female by examination of these parameters in hormone-treated transgender men...
April 6, 2018: Endocrine Practice
https://www.readbyqxmd.com/read/29623697/efficacy-and-safety-of-a-mixed-extract-of-trigonella-foenum-graecum-seed-and-lespedeza-cuneata-in-the-treatment-of-testosterone-deficiency-syndrome-a-randomized-double-blind-placebo-controlled-clinical-trial
#18
Hyun Jun Park, Kyeong Soo Lee, Eun Kyoung Lee, Nam Cheol Park
PURPOSE: The aim of this study was to investigate the efficacy and safety of a mixed extract of Trigonella foenum-graecum seed and Lespedeza cuneata (TFGL) for the treatment of testosterone deficiency syndrome (TDS). MATERIALS AND METHODS: Patients were instructed to take a placebo or 200 mg TFGL capsule twice per day for 8 weeks. The primary efficacy variable was the change from baseline in the Aging Males' Symptoms scale (AMS), as well as levels of serum total and free testosterone...
March 22, 2018: World Journal of Men's Health
https://www.readbyqxmd.com/read/29621673/part-b-morphometric-and-transcriptomic-responses-to-sub-chronic-exposure-to-the-polycyclic-aromatic-hydrocarbon-phenanthrene-in-the-fathead-minnow-pimephales-promelas
#19
Jennifer R Loughery, Karen A Kidd, Angella Mercer, Chris J Martyniuk
Phenanthrene is a tricyclic polycyclic aromatic hydrocarbon and environmental contaminant found in high concentrations around urban catchments and in the vicinity of oil extraction activities. Fish exposed to phenanthrene can exhibit altered reproductive hormone profiles and/or differences within gonadosomatic index and altered gamete proportions, but the mechanisms underlying these changes are not fully understood. In this study, we conducted a sub-chronic bioassay and measured transcriptional responses in the liver, the major tissue involved in generating lipids for oocyte growth...
March 23, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29619752/is-a-previously-or-currently-reduced-testosterone-level-in-male-patients-with-type-2-diabetes-mellitus-a-risk-factor-for-the-development-of-coronary-artery-disease-a-systematic-review-and-meta-analysis
#20
Feng Huang
INTRODUCTION: We aimed to systematically investigate the association between testosterone level and cardiovascular risk in male patients with type 2 diabetes mellitus (T2DM) by comparing male T2DM patients with low testosterone levels to male T2DM patients with normal testosterone levels at baseline in terms of the number of cases of coronary artery disease (CAD). METHODS: Online databases were carefully searched for studies relating to testosterone, diabetes mellitus, and cardiovascular risk by using the search terms 'testosterone,' 'diabetes mellitus,' and 'coronary artery/cardiovascular disease...
April 4, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
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