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Hypogonadism

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https://www.readbyqxmd.com/read/29166371/effect-of-iron-overload-on-impaired-fertility-in-male-patients-with-transfusion-dependent-beta-thalassemia
#1
Mei-Jou Chen, StevenShinn-Forng Peng, Meng-Yao Lu, Yung-Li Yang, Shiann-Tarng Jou, Hsiu-Hao Chang, Shee-Uan Chen, Dong-Tsamn Lin, Kai-Hsin Lin
BACKGROUND: To investigate the fertility of male patients with transfusion-dependent beta-thalassemia, and use MRI as a novel method to assess the iron overload status of testis in such patients. METHODS: Twenty-one male patients with transfusion-dependent beta-thalassemia and 5 normal male controls enrolled in this study. Hormonal profiles, iron levels, MRI testicular dimension, MRI T2 values, parameters for sperm quality, sperm DNA fragmentation (SDF) of participants were measured...
November 22, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29165578/clues-for-polygenic-inheritance-of-pituitary-stalk-interruption-syndrome-by-exome-sequencing-in-20-patients
#2
Nitash Zwaveling-Soonawala, Marielle Alders, Aldo Jongejan, Lidija Kovacic, Floor A Duijkers, Saskia M Maas, Eric Fliers, A S Paul van Trotsenburg, Raoul C Hennekam
Context: Pituitary stalk interruption syndrome (PSIS) consists of a small/absent anterior pituitary lobe, interrupted/absent pituitary stalk, and an ectopic posterior pituitary lobe. Mendelian forms of PSIS are detected infrequently (< 5%), and a polygenic etiology has been suggested. GLI2 variants have been reported in a relatively high frequency in PSIS. Objective: To provide further evidence for a non-Mendelian, polygenic etiology of PSIS. Methods: Exome sequencing (trio approach) in 20 patients with isolated PSIS...
November 20, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29160040/fgfr1-disruption-identified-by-whole-genome-sequencing-in-a-male-with-a-complex-chromosomal-rearrangement-and-hypogonadotropic-hypogonadism
#3
Kaori Yamoto, Shingo Okamoto, Yasuko Fujisawa, Maki Fukami, Hirotomo Saitsu, Tsutomu Ogata
No abstract text is available yet for this article.
November 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29158902/hypernatraemic-hypovolaemia-with-anaemia-an-unusual-presentation-of-primary-testicular-insufficiency
#4
Usman Javaid, Vikram Lal, Catherine Napier, Alison Burbridge, Richard Quinton
Hypogonadal men may experience intense vasomotor symptoms, and vasomotor sweating can occasionally be associated with profound fluid losses. We describe a 37-year-old male, who exhibited persistent hypovolaemic hypernatraemia that was challenging to treat despite a continuous high fluid input (>4-5 L/day). He was noted to have drenching sweats and normochromic anaemia. He had recent traumatic head injury, which resulted in neurocognitive dysfunction, so pituitary function tests were done which showed primary hypogonadism...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29158535/the-triglycerides-and-glucose-index-rather-than-homa-ir-is-more-associated-with-hypogonadism-in-chinese-men
#5
Kun Zhang, Yi Chen, Lijie Liu, Meng Lu, Jing Cheng, Fengbin Gao, Ningjian Wang, Zhoujun Shen, Yingli Lu
Previous studies have reported that insulin resistant and low testosterone are related. The triglyceride and glucose index (TyG) well mirrors insulin sensitivity. No study investigated the application of TyG in male hypogonadism. We aimed to explore whether TyG was associated with hypogonadism, and also evaluate the ability of TyG compared to HOMA-IR as a possible hypogonadism predictor. A total of 4299 male subjects were enrolled from 22 sites in East China. Hypogonadism was defined as total testosterone <11...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29157487/contr%C3%A3-le-de-l%C3%A2-axe-gonadotrope-nouveaux-aspects-physiologiques-et-th%C3%A3-rapeutiques-control-of-the-gonadotrope-axis-new-physiologic-and-therapeutic-aspects
#6
L Maione, S Christin-Maître, P Chanson, J Young
The endocrine and exocrine functions of the gonads are controlled by the gonadotrope axis, whose master regulator is the hypothalamic decapeptide GnRH. The Kisspeptin/Neurokinin B (Kp/NkB) neuronendocrine system is the main physiologic regulator of GnRH neurons. The Kp/NkB system is currently considered the key mediator for the hypothalamic negative feedback exerted by sex steroids and prolactin, as well as by various metabolic signals. Intrinsic alterations or regulatory abnormalities of Kp/NkB system lead to various gonadotrope axis puberty and fertility dysfunctions...
October 2017: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29157088/examining-the-effect-of-the-computer-based-educational-package-on-quality-of-life-and-severity-of-hypogonadism-symptoms-in-males
#7
Elahe Afsharnia, Minoo Pakgohar, Shahla Khosravi, Hamid Haghani
OBJECTIVE: The objective of this study was to determine the effect of the computer-based educational package on men's QoL and the severity of their hypogonadism symptoms. METHODS: A quasi-experimental study was conducted on 80 male employees. The data collection tool included the 'Aging Male Symptoms' (AMS) and 'Short Form-36' (SF36) questionnaires. Four sessions were held for the intervention group over a period of 4 weeks. Two months after training, QoL and the severity of hypogonadism symptoms were measured in both the intervention and control groups...
November 20, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/29152903/reproductive-endocrine-phenotypes-relating-to-chd7-mutations-in-humans
#8
REVIEW
Ravikumar Balasubramanian, William F Crowley
Mutations in the gene CHD7 cause CHARGE syndrome, a rare multi-organ syndromic disorder. Gonadal defects are common in individuals with CHARGE syndrome (seen in ∼60-80% of cases) and represent the letter "G" in the CHARGE syndrome acronym. The gonadal defect in CHARGE syndrome results from congenital deficiency of the hypothalamic hormone Gonadotropin-releasing hormone (GnRH), which manifests clinically as pubertal failure and infertility, and biochemically as hypogonadotropic hypogonadism (low sex steroid hormone levels with inappropriately normal or low gonadotropin levels)...
November 20, 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/29150464/testosterone-therapy-in-hypogonadal-men-a-systematic-review-and-network-meta-analysis
#9
Jesse Elliott, Shannon E Kelly, Adam C Millar, Joan Peterson, Li Chen, Amy Johnston, Ahmed Kotb, Becky Skidmore, Zemin Bai, Muhammad Mamdani, George A Wells
OBJECTIVE: To assess the relative effects of individual testosterone products among hypogonadal men. DESIGN: Systematic review and network meta-analysis. METHODS: We searched MEDLINE, Embase, Cochrane CENTRAL, and grey literature (25 May 2017) for randomised-controlled trials (RCTs) and non-randomised studies (NRS) that involved hypogonadal men given testosterone replacement therapy (TRT) for ≥3 months. Comparators were placebo, another TRT, or the same product at a different dose...
November 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29150303/oxytocin-intranasal-administration-as-a-new-hope-for-hypogonadotropic-hypogonadism-patients
#10
Mohammad Saied Salehi, Sareh Pandamooz, Homayoun Khazali
Hypogonadotropic hypogonadism (HH) is a form of hypogonadism which also known as secondary or central hypogonadism. Congenital HH can occur due to defect in gonadotropin releasing hormone (GnRH) neurons, upstream regulators of GnRH neurons or pituitary gonadotropic cells. Testosterone or gonadotropins therapy are widely used to treat HH patients, however both have undesirable effects and GnRH treatment for HH patients is time and cost consuming. Direct delivery of therapeutics to the brain via the nasal route is located in the center of attention during the last decade and trial application of intranasal oxytocin as a method of enhancing social interactions are reported...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150164/testosterone-replacement-therapy-and-the-risk-of-stroke-in-men-a-systematic-review
#11
REVIEW
Simone Y Loo, Bing Yu Chen, Oriana Hoi Yun Yu, Laurent Azoulay, Christel Renoux
In recent years, questions have been raised regarding the cardiovascular safety of testosterone replacement therapy (TRT). The objective of this study was to systematically review the available evidence on TRT safety in men, specifically with respect to the risk of stroke. We identified publications from MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials up to May 2017. Articles eligible for review included observational studies evaluating TRT and the risk of stroke among men aged 18 or older...
December 2017: Maturitas
https://www.readbyqxmd.com/read/29146774/split-hand-foot-malformation-a-potential-clue-to-underlying-fgfr1-mutation-in-patients-with-isolated-congenital-hypogonadotropic-hypogonadism
#12
Partha Pratim Chakraborty, Rana Bhattacharjee, Satinath Mukhopadhyay, Subhankar Chowdhury
No abstract text is available yet for this article.
November 16, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/29145714/clinical-and-biochemical-correlates-of-male-hypogonadism-in-type-2-diabetes
#13
A Herrero, M Marcos, P Galindo, J M Miralles, J J Corrales
The origin of hypogonadism, a condition including both symptoms and biochemical criteria of androgen deficiency, in type 2 diabetes is poorly known. In a cross-sectional study of 267 unselected patients, we analyzed the potential correlation of several clinical and biochemical variables as well as chronic micro- and macrovascular diabetic complications with hypogonadism. Hypogonadism was present in 46 patients (17.2%) using a cutoff of total testosterone 10.4 nmol/L and in 31 (11.6%) with a cutoff of 8 nmol/L...
November 16, 2017: Andrology
https://www.readbyqxmd.com/read/29145707/relationship-between-testosterone-in-serum-saliva-and-urine-during-treatment-with-intramuscular-testosterone-undecanoate-in-gender-dysphoria-and-male-hypogonadism
#14
Y Lood, E Aardal-Eriksson, C Webe, J Ahlner, B Ekman, J Wahlberg
Long-term testosterone replacement therapy is mainly monitored by trough levels of serum testosterone (S-T), while urinary testosterone (U-T) is used by forensic toxicology to evaluate testosterone doping. Testosterone in saliva (Sal-T) may provide additional information and simplify the sample collection. We aimed to investigate the relationships between testosterone measured in saliva, serum and urine during standard treatment with 1,000 mg testosterone undecanoate (TU) every 12th week during 1 year. This was an observational study...
November 16, 2017: Andrology
https://www.readbyqxmd.com/read/29144824/17%C3%AE-hydroxylase-deficiency-is-an-underdiagnosed-disease-high-frequency-of-misdiagnoses-in-a-large-cohort-of-brazilian-patients
#15
Rafaela Fontenele, Marivânia Costa-Santos, Claudio E Kater
OBJECTIVE: 17α-Hydroxylase deficiency (P450c17D) is characterized by hypogonadism and mineralocorticoid hypertension. We aimed to estimate the relative incidence and spectrum of preliminary misdiagnoses in Brazilian P450c17D patients. DESIGN: Cross-sectional study. METHODS: We reviewed, updated, and analyzed data of 40 P450c17D patients (21 XY, 19 XX). RESULTS: Complete data were unavailable for two patients. Seven patients were relatives of an index case...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144803/endocrine-manifestations-of-primary-hyperoxaluria
#16
Shatha Murad, Yuval Eisenberg
OBJECTIVE: Primary hyperoxaluria type 1 (PH1) is a rare metabolic disorder of oxalate overproduction. It is associated with urolithiasis and nephrocalcinosis which progress to ESRD and systemic oxalosis. As oxalate deposits in tissues, non-parathyroid hormone (nonPTH) mediated hypercalcemia, oxalate osteopathy, primary hypothyroidism and primary hypogonadism develop. In this review, we will present a case of PH1 and provide an overview of this clinical entity and its endocrine manifestations...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144511/evaluating-charge-syndrome-in-congenital-hypogonadotropic-hypogonadism-patients-harboring-chd7-variants
#17
Cheng Xu, Daniele Cassatella, Almer M van der Sloot, Richard Quinton, Michael Hauschild, Christian De Geyter, Christa Flück, Katrin Feller, Deborah Bartholdi, Attila Nemeth, Irene Halperin, Sandra Pekic Djurdjevic, Philippe Maeder, Georgios Papadakis, Andrew A Dwyer, Laura Marino, Lucie Favre, Duarte Pignatelli, Nicolas J Niederländer, James Acierno, Nelly Pitteloud
PurposeCongenital hypogonadotropic hypogonadism (CHH), a rare genetic disease caused by gonadotropin-releasing hormone deficiency, can also be part of complex syndromes (e.g., CHARGE syndrome). CHD7 mutations were reported in 60% of patients with CHARGE syndrome, and in 6% of CHH patients. However, the definition of CHD7 mutations was variable, and the associated CHARGE signs in CHH were not systematically examined.MethodsRare sequencing variants (RSVs) in CHD7 were identified through exome sequencing in 116 CHH probands, and were interpreted according to American College of Medical Genetics and Genomics guidelines...
November 16, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29143290/increased-free-testosterone-levels-in-men-with-uncontrolled-type-2-diabetes-five-years-after-randomization-to-bariatric-surgery
#18
Nathan H Pham, James Bena, Deepak L Bhatt, Laurence Kennedy, Philip R Schauer, Sangeeta R Kashyap
Hypogonadism frequently occurs in male patients with type 2 diabetes (T2DM) and is linked to insulin resistance and inflammation. Testosterone levels rise acutely in obese patients following bariatric surgery, though long-term changes have not been investigated in a randomized controlled trial. This study evaluated obese men with T2DM randomized to either bariatric surgery or medical therapy. Testosterone, gonadotropins, body composition, insulin sensitivity, and inflammatory markers were evaluated in 32 patients at baseline and at 5 years...
November 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29142294/administration-of-increasing-doses-of-gonadotropin-releasing-hormone-in-men-with-spinal-cord-injury-to-investigate-dysfunction-of-the-hypothalamic-pituitary-gonadal-axis
#19
William A Bauman, Michael F La Fountaine, Christopher M Cirnigliaro, Steven C Kirshblum, Ann M Spungen
STUDY DESIGN: Prospective. OBJECTIVES: To determine the optimum gonadotropin-releasing hormone (GnRH) dose to identify dysfunction of the hypothalamic-pituitary-gonadal axis in men with spinal cord injury (SCI). SETTING: Metropolitan Area Hospitals, New York and New Jersey, USA. METHODS: SCI men (16 hypogonadal (HG = serum testosterone <12.1 nmol/l) and 14 eugonadal (EG)) and able-bodied (AB) men (27 HG and 11 EG) were studied...
November 15, 2017: Spinal Cord
https://www.readbyqxmd.com/read/29140875/bone-mineral-density-declines-twice-as-quickly-among-hiv-infected-women-compared-to-men
#20
Kristine M Erlandson, Jordan E Lake, Myung Sim, Julian Falutz, Carla M Prado, Ana Rita Domingues da Silva, Todd T Brown, Giovanni Guaraldi
BACKGROUND: Initial declines in bone mineral density (BMD) following antiretroviral therapy (ART) initiation in HIV are well described, but data on long-term changes and risk factors for decline, particularly among women, are limited. METHODS: HIV-infected men and women in the Modena Metabolic Clinic underwent dual-energy X-ray absorptiometry (DXA) scans every 6-12 months for up to 10 years (median 4.6 years). Mixed effect regression model in combined and sex-stratified models determined annual rates of decline and clinical factors associated with BMD...
November 11, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
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