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https://www.readbyqxmd.com/read/28807822/does-long-term-androgen-deficiency-lead-to-metabolic-syndrome-in-middle-aged-rats
#1
Veronika Borbélyová, Emese Domonkos, Janka Bábíčková, Ľubomíra Tóthová, Mária Kačmárová, Oľga Uličná, Daniela Ostatníková, Július Hodosy, Peter Celec
Evidence from clinical observational studies and animal experiments suggests that hypogonadism is associated with the metabolic syndrome. In most of the experiments, androgen deficiency is induced by gonadectomy in the adulthood and relatively short-term effects of hypogonadism on metabolic parameters are usually observed. The purpose of this study was to evaluate the metabolic effects of long-term androgen deficiency starting before puberty in middle-aged male rats. The components of the metabolic syndrome were examined in male, female and gonadectomized male rats at the age of 18months...
August 11, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28804590/feminizing-adrenocortical-carcinoma-without-gynecomastia
#2
Farida Chentli, Fadila Chabour, Djafer Bouchibane, Nouria Nouar
Malignant feminizing adrenocortical tumors are exceedingly rare. Their main presentation is gynecomastia. In these estrogen secreting tumors (with or without other adrenocortical hormones) lack of gynecomastia is exceptional as in our case. A 44-year-old man presented with abdominal pain. Radiological assessment revealed a tumor measuring 120 × 95 mm in the retroperitoneal area with numerous metastases. Pathological examination pleaded for an adrenal origin with a Weiss's score of 5. Six months later, the tumor relapsed, and he had a second surgery and was sent for hormone assessment...
July 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28795961/testosterone-and-sexual-function
#3
Adriane Fugh-Berman, Anthony R Scialli
PURPOSE OF REVIEW: Testosterone therapy has been advocated in the treatment of symptoms that may represent normal aging. We briefly review randomized clinical trials on the effects of testosterone therapy on sexual function. RECENT FINDINGS: About half of clinical trials showed no benefit of testosterone therapy on any aspect of sexual function. In those studies showing a benefit on some aspect of sexual function, most sexual function domains were not improved. Testosterone therapy has been disappointing in the treatment of erectile dysfunction...
August 8, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28791252/prostate-specific-antigen-5-years-following-stereotactic-body-radiation-therapy-for-low-and-intermediate-risk-prostate-cancer-an-ablative-procedure
#4
Shaan Kataria, Harsha Koneru, Shan Guleria, Malika Danner, Marilyn Ayoob, Thomas Yung, Siyuan Lei, Brian T Collins, Simeng Suy, John H Lynch, Thomas Kole, Sean P Collins
BACKGROUND: Our previous work on early PSA kinetics following prostate stereotactic body radiation therapy (SBRT) demonstrated that an initial rapid and then slow PSA decline may result in very low PSA nadirs. This retrospective study sought to evaluate the PSA nadir 5 years following SBRT for low- and intermediate-risk prostate cancer (PCa). METHODS: 65 low- and 80 intermediate-risk PCa patients were treated definitively with SBRT to 35-37.5 Gy in 5 fractions at Georgetown University Hospital between January 2008 and October 2011...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28772110/leydig-cell-dysfunction-systemic-inflammation-and-metabolic-syndrome-in-long-term-testicular-cancer-survivors
#5
M Bandak, N Jørgensen, A Juul, J Lauritsen, P S Oturai, J Mortensen, P Hojman, J W Helge, G Daugaard
BACKGROUND: Twenty to thirty percent of testicular cancer (TC) survivors have elevated serum levels of luteinising hormone (LH) with or without corresponding low testosterone levels (Leydig cell dysfunction) during clinical follow-up for TC. However, it remains to be clarified if this subgroup of TC survivors has an increased long-term risk of systemic inflammation and metabolic syndrome (MetS) when compared with TC survivors with normal Leydig cell function during follow-up. PATIENTS AND METHODS: TC survivors with Leydig cell dysfunction and a control group of TC survivors with normal Leydig cell function during follow-up were eligible for participation in the study...
July 31, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28770381/effects-of-ascorbic-acid-on-spermatogenesis-and-sperm-parameters-in-diabetic-rats
#6
M Verónica Aguirre-Arias, Victoria Velarde, Ricardo D Moreno
Diabetes mellitus in human and animal models has been correlated with low sperm count, testicular abnormalities, high levels of germ cell death, and oxidative stress. In this study, we focus on three questions: (1) Is germ cell apoptosis stage-specific in diabetic male rats? (2) Could ascorbic acid (AA) reverse oxidative and histological damage and restore testicular dysfunction? (3) Could AA treatment restore fertility parameters in diabetic rats? Adult Sprague-Dawley rats were divided into four groups: control, diabetic, control plus AA, and diabetic plus AA...
August 2, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28766811/do-sperm-parameters-and-infertility-affect-sexuality-of-couples
#7
Fuat Kızılay, Mehmet Şahin, Barış Altay
We aimed to analyse the relationship between sperm parameters and International Index of Erectile Function (IIEF) score, the Female Sexual Function Index (FSFI) score, the testosterone (T) level in infertile men and between FSFI score and partners' fertility. Patients were divided into three groups; (group 1: azoospermia [n = 57], group 2: sperm count <15 million [n = 41], group 3: sperm count >15 million [n = 81]). Patients and their partners filled the IIEF and FSFI forms. The normality of the tests was analysed with Kolmogorov-Smirnov and Shapiro-Wilk tests...
August 2, 2017: Andrologia
https://www.readbyqxmd.com/read/28765273/cross-sex-testosterone-therapy-in-ovariectomized-mice-addition-of-low-dose-estrogen-preserves-bone-architecture
#8
Laura G Goetz, Ramanaiah Mamillapalli, Maureen J Devlin, Amy E Robbins, Masoumeh Majidi-Zolbin, Hugh S Taylor
Cross-sex hormone therapy (XHT) is widely used by transgender people to alter secondary sex characteristics to match their desired gender presentation. Here we investigate the long-term effects of XHT on bone health, using a murine model. Female mice underwent ovariectomy at either 6 or 10 weeks, and began weekly testosterone or vehicle injections. Dual-energy X-ray Absorptiometry (DXA) was performed to measure bone mineral density (BMD) and microCT was performed to compare femoral cortical and trabecular bone architecture...
August 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28721218/spontaneous-reossification-of-the-sella-in-transsphenoidal-reoperation-associated-with-strontium-ranelate
#9
Maria Mercedes Pineyro, Daiana Arrestia, Mariana Elhordoy, Ramiro Lima, Saul Wajskopf, Raul Pisabarro, Maria Pilar Serra
Spontaneous reossification of the sellar floor after transsphenoidal surgery has been rarely reported. Strontium ranelate, a divalent strontium salt, has been shown to increase bone formation, increasing osteoblast activity. We describe an unusual case of a young patient with Cushing's disease who was treated with strontium ranelate for low bone mass who experienced spontaneous sellar reossification after transsphenoidal surgery. A 21-year-old male presented with Cushing's features. His past medical history included delayed puberty diagnosed at 16 years, treated with testosterone for 3 years without further work-up...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28721216/switch-to-restoration-therapy-in-a-testosterone-treated-central-hypogonadism-with-erythrocytosis
#10
B Cangiano, C Cacciatore, L Persani, M Bonomi
We describe a case of severe erythrocytosis caused by testosterone replacement therapy in a 66-year-old man affected with hypogonadotropic hypogonadism (HH) determining osteoporosis, resolved by switching to restoration therapy with clomiphene citrate. The patient complained fatigue, loss of libido and defective erections and a spontaneous vertebral fracture despite bisphosphonate therapy and vitamin D supplementation. The examinations proved isolated HH and he was therefore treated with testosterone gel with regression of specific manifestations but elevated hemoglobin and hematocrit values...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28709177/effects-of-testosterone-therapy-on-bmi-blood-pressure-and-laboratory-profile-of-transgender-men-a-systematic-review
#11
I Velho, T M Fighera, P K Ziegelmann, P M Spritzer
Testosterone is the main hormonal agent used for cross-sex hormone therapy in female-to-male transgender persons. Our aim was to systematically review the literature concerning the effects of testosterone on body mass index (BMI), blood pressure, hematocrit, hemoglobin, lipid profile, and liver enzymes in transgender men. PUBMED and EMBASE were searched for studies published until March 2017. Studies were included if they reported interventions with any dose of testosterone and comparison of variables before and during treatment...
July 14, 2017: Andrology
https://www.readbyqxmd.com/read/28704095/sarcopenia-an-endocrine-disorder
#12
Alexis McKee, John E Morley, Alvin M Matsumoto, Aaron Vinik
Sarcopenia is defined as low muscle function (walking speed or grip strength) in the presence of low muscle mass. A simple screening test - the SARC-F - is available to identify persons with sarcopenia. The major endocrine causes of sarcopenia are diabetes mellitus and male hypogonadism. Other causes are decreased physical activity, loss of motor neuron units, weight loss, inflammatory cytokines, reduced blood flow to muscles, very low 25(OH) vitamin D levels and decreased growth hormone and IGF-1. Treatment for sarcopenia includes resistance and aerobic exercise, leucine enriched essential amino acids, and vitamin D...
July 13, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28700985/genes-involved-in-long-term-memory-are-expressed-in-testis-of-cryptorchid-boys-and-respond-to-gnrha-treatment
#13
Faruk Hadziselimovic, Katharina Gegenschatz-Schmid, Gilvydas Verkauskas, Philippe Demougin, Vytautas Bilius, Darius Dasevicius, Michael B Stadler
It has been known for many years that boys with unilateral or bilateral undescended testis (cryptorchidism) tend to have a low IQ, and those who belong to the high infertility risk (HIR) group perform less well at school than low infertility risk (LIR) patients. However, the molecular biological processes underlying this phenomenon are not understood. In this study, we report the outcome of testicular RNA profiling for genes involved in long-term memory formation. We analyzed the histology and the transcriptome of testicular biopsies from bilateral HIR cryptorchid boys, comparing those who received GnRHa treatment for 6 months after the first surgery with those who did not receive GnRHa before the second surgery...
2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28689207/design-of-finasteride-loaded-nanoparticles-for-potential-treatment-of-alopecia
#14
Luís V Roque, Inês S Dias, Nuno Cruz, Ana Rebelo, Amílcar Roberto, Patrícia Rijo, Catarina P Reis
BACKGROUND/AIMS: Androgenetic alopecia is an extremely common dermatological disorder affecting both men and women. Oral finasteride (FNS), a synthetic 4-aza-3-oxosteroid compound with poor aqueous solubility, blocks the peripheral conversion of testosterone to dihydrotestosterone (DHT) in a significant reduction in DHT concentration, achieving satisfactory results in alopecia treatment. However, its oral intake generally causes severe side effects. Considering that there is currently no scientifically proven treatment, new drug delivery systems able to improve alopecia therapy are urgently required...
2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28679314/pre-treatment-of-different-biological-matrices-for-exogenous-testosterone-analysis-a-review
#15
Edna Carolina Pizzato, Marcelo Filonzi, Hemerson Silva da Rosa, André Valle de Bairros
Exogenous testosterone presence has been monitored mainly in urine and blood, however other biological matrices such as hair, nails and saliva samples can be used with successful for in vivo measurement. Chromatographic analysis requires pre-treatment to obtain free testosterone and its metabolites. Among the pre-treatment procedures, digestion, hydrolysis and solvolysis steps are used to reach the analytical purpose. Digestion assay is indicated for hair and nails samples. First, it is recommended decontamination step...
July 5, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28673384/testosterone-therapy-of-men-with-type-2-diabetes-mellitus-a-randomized-double-blinded-placebo-controlled-study
#16
Line Velling Magnussen
The prevalence of chronic diseases including obesity and type 2 diabetes mellitus (T2D) are increasing. The usage of testosterone replacement therapy (TRT) has escalated in the Western countries during the past decades especially in aging men without clear organic indication for TRT although the safety of long-term TRT has not been clarified regarding the risk of cardiovascular disease (CVD). Aging men with T2D have an increased risk of CVD and these patients are often characterized by lowered T-levels, ectopic fat depots, a deranged adipokine profile with e...
July 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28673265/a-randomized-double-blind-study-of-testosterone-replacement-therapy-or-placebo-in-testicular-cancer-survivors-with-mild-leydig-cell-insufficiency-einstein-intervention
#17
Mikkel Bandak, Niels Jørgensen, Anders Juul, Jakob Lauritsen, Michael Kreiberg, Peter Sandor Oturai, Jørn Wulff Helge, Gedske Daugaard
BACKGROUND: Elevated serum levels of luteinizing hormone and slightly decreased serum levels of testosterone (mild Leydig cell insufficiency) is a common hormonal disturbance in testicular cancer (TC) survivors. A number of studies have shown that low serum levels of testosterone is associated with low grade inflammation and increased risk of metabolic syndrome. However, so far, no studies have evaluated whether testosterone substitution improves metabolic dysfunction in TC survivors with mild Leydig cell insufficiency...
July 3, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28668617/atorvastatin-mitigates-testicular-injuries-induced-by-ionizing-radiation-in-mice
#18
Ramezan Ali Naeimi, Fereshteh Talebpour Amiri, Ali Reza Khalatbary, Arash Ghasemi, Mehryar Zargari, Maryam Ghesemi, Seyed Jalal Hosseinimehr
BACKGROUND: Radiotherapy in patients with pelvis malignancy causes testes irradiation and resulted in testicular damages. Atorvastatin (ATV) in the low-dose is considered as antioxidant and anti-inflammatory properties. OBJECTIVE: This experimental study was investigated protective effects of ATV on irradiation-induced testicular injury. MATERIAL AND METHODS: Sixty male balb/c mice were randomly divided into 6 groups: 1: control, 2: irradiated (IR), 3, 4 and 5: IR plus ATV (10, 20 and 50mg/kg), 6: only ATV (50mg/kg)...
June 28, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28662541/reproductive-endocrine-issues-in-men-with-sickle-cell-anemia
#19
REVIEW
A W Huang, O Muneyyirci-Delale
In patients with sickle cell anemia, the sickling of red blood cells is known to cause end-organ damage by infarction. In some men who are affected by sickle cell anemia, the obstruction of venous outflow of the penis causes priapism, which could lead to erectile dysfunction. There is also evidence that the disease is linked to other reproductive issues in men-specifically delayed puberty, low testosterone, and sperm abnormalities-although the causes of these problems are less clear. Treatment of sickle cell anemia can have effects on the reproductive system as well...
June 29, 2017: Andrology
https://www.readbyqxmd.com/read/28657375/metabolic-effect-of-obesity-on-polycystic-ovary-syndrome-in-adolescents-a-meta-analysis
#20
Li Li, Qiong Feng, Ming Ye, Yaojuan He, Aling Yao, Kun Shi
This meta-analysis provides an updated and comprehensive estimate of the effects of obesity on metabolic disorders in adolescent polycystic ovary syndrome (PCOS). Relevant articles consistent with the search terms published up to 31 January 2014 were retrieved from PubMed, EMBASE, PsycINFO and CENTRAL. Thirteen articles (16 independent studies) conformed to the inclusion criteria. The evaluated outcomes were the metabolic parameters of obese adolescents with PCOS (case group) relative to normal-weight adolescents with PCOS, or obese adolescents without PCOS...
June 28, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
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