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https://www.readbyqxmd.com/read/28723965/the-prevalence-and-metabolic-characteristics-of-polycystic-ovary-syndrome-in-the-qatari-population
#1
Soha R Dargham, Lina Ahmed, Eric S Kilpatrick, Stephen L Atkin
OBJECTIVE: The prevalence of polycystic ovary syndrome (PCOS) in the Qatari population is unknown and hence the estimated impact on the local population cannot be determined. The purpose of this study was to estimate the prevalence and metabolic features of PCOS among Qatari women. DESIGN: Cross sectional analysis. PATIENTS: 3,017 Qatari subjects volunteered to be phenotyped and genotyped for the Qatar Biobank from which all women between the ages of 18-40 years were identified (750)...
2017: PloS One
https://www.readbyqxmd.com/read/28721134/osteoporosis-in-men
#2
REVIEW
Waldemar Misiorowski
Osteoporotic fractures are the leading cause of morbidity and mortality among aging men. 30% of all hip fractures occur in men, and mortality resulting from not only the hip fracture, but also the spine and other major osteoporotic fractures, is significantly higher in men than in women. As in women, hypogonadism is the best documented risk factor for developing osteoporosis in men. In older men, testosterone levels are negatively correlated with the risk of fractures, and it seems that this age-related testosterone deficiency should not be considered as one of the many causes of secondary osteoporosis, rather one of the major and most important mechanisms of senile osteoporosis...
June 2017: Przeglad Menopauzalny, Menopause Review
https://www.readbyqxmd.com/read/28720108/early-pregnancy-sex-steroids-during-primiparous-pregnancies-and-maternal-breast-cancer-a-nested-case-control-study-in-the-northern-sweden-maternity-cohort
#3
Renée T Fortner, Eglé Tolockiene, Helena Schock, Husam Oda, Hans-Åke Lakso, Göran Hallmans, Rudolf Kaaks, Paolo Toniolo, Anne Zeleniuch-Jacquotte, Kjell Grankvist, Eva Lundin
BACKGROUND: Pregnancy and parity are associated with subsequent breast cancer risk. Experimental and epidemiologic data suggest a role for pregnancy sex steroid hormones. METHODS: We conducted a nested case-control study in the Northern Sweden Maternity Cohort (1975-2007). Eligible women had provided a blood sample in the first 20 weeks of gestation during a primiparous pregnancy leading to a term delivery. The current study includes 223 cases and 417 matched controls (matching factors: age at and date of blood collection)...
July 18, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28710257/regulation-of-bone-metabolism-by-sex-steroids
#4
Sundeep Khosla, David G Monroe
Osteoporosis is a significant public health problem, and a major cause of the disease is estrogen deficiency following menopause in women. In addition, considerable evidence now shows that estrogen is also a major regulator of bone metabolism in men. Since the original description of the effects of estrogen deficiency on bone by Fuller Albright more than 70 years ago, there has been enormous progress in understanding the mechanisms of estrogen and testosterone action on bone using human and mouse models. Although we understand more about the effects of estrogen on bone as compared with testosterone, both sex steroids do play important roles, perhaps in a somewhat compartment-specific (i...
July 14, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28705923/maternal-and-female-fetal-testosterone-levels-are-associated-with-maternal-age-and-gestational-weight-gain
#5
Theodora Kunovac-Kallak, Charlotte Hellgren, Alkistis Skalkidou, Lotta Sandelin-Francke, Kumari Ubhayasekera, Jonas Bergquist, Ove Axelsson, Erika Comasco, Rebecca Campbell, Inger Sundstrom Poromaa
OBJECTIVE: Prenatal androgen exposure has been suggested to play a role in polycystic ovary syndrome. Given the limited information on what maternal characteristics influence maternal testosterone levels, and the even less explored routes by which female fetus androgen exposure would occur, the aim of this study was to investigate the impact of maternal age, BMI, weight gain, depressed mood, and aromatase SNPs on testosterone levels in maternal serum and amniotic fluid of female fetuses...
July 13, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28702774/do-fsh-lh-ratio-and-gonadal-hormone-levels-predict-clinical-improvement-in-postmenopausal-schizophrenia-women
#6
Alexandre González-Rodríguez, Miquel Bernardo, Rafael Penadés, Bárbara Arias, Victoria Ruiz Cortés, Mary V Seeman, Rosa Catalán
Menopause is a process characterized by a decline in estrogen levels and is therefore a period of biological vulnerability for psychotic relapse in women with schizophrenia. Our goal was to correlate not only gonadal hormone levels but also follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels with improvement in specific clinical symptoms. Thirty-seven acutely ill postmenopausal schizophrenia women with a newly initiated, clinically determined change in antipsychotic medication participated in a 12-week prospective observational outcome study...
July 12, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28698075/comparison-of-metformin-and-n-acetyl-cysteine-as-an-adjuvant-to-clomiphene-citrate-in-clomiphene-resistant-women-with-polycystic-ovary-syndrome
#7
M Nemati, Sh Nemati, A-M Taheri, B Heidari
OBJECTIVE: To evaluate the effects of short- and long-term treatment with metformin and NAC, in an adjuvant to clomiphene citrate (CC), on the improvement of hormonal profile (SHBG, total testosterone, FBS, and fasting insulin) and fertility status in CC-resistant women with PCOS. MATERIALS AND METHODS: One hundred and eight CC-resistant PCOS patients were participated in the study and received either metformin (1500mg/day) or NAC (1800mg/day) with 100mg/day of CC for 8 and 12 weeks...
July 8, 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28690949/role-of-sex-hormone-levels-and-psychological-stress-in-the-pathogenesis-of-autoimmune-diseases
#8
REVIEW
Salman Assad, Hamza H Khan, Haider Ghazanfar, Zarak H Khan, Salman Mansoor, Muhammad A Rahman, Ghulam H Khan, Bilal Zafar, Usman Tariq, Shuja A Malik
The aim of this review article is to assess the connection between psychological stress and sex hormones and their effect on the development of autoimmune diseases. Psychological stress describes what people feel when they are under mental, physical, or emotional pressure. We searched for online articles using MEDLINE®, Embase, Cochrane Library and Google Scholar. Our research yielded a total of 165 articles out of which 30 articles were considered for further perusal. The articles were reviewed from February 2016 to February 2017...
June 5, 2017: Curēus
https://www.readbyqxmd.com/read/28689207/design-of-finasteride-loaded-nanoparticles-for-potential-treatment-of-alopecia
#9
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...
July 8, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28684272/androgen-profile-in-chinese-women-with-polycystic-ovary-syndrome-in-their-reproductive-years
#10
Zehong Zhou, Rong Li, Jie Qiao
Large comparative studies of androgen profiles in women with polycystic ovary syndrome (PCOS) and healthy women are scarce, and the application of the free androgen index (FAI) in diagnosing PCOS has lagged behind in China. Androgen profiles of women aged between 19 and 45 years with PCOS (n = 833) were compared with controls (n = 2732). The women with PCOS had an elevated androgen level (total testosterone, androstenedione and free androgen index) through their reproductive years. In the 'healthy' reference population (consisting of 821 controls without PCOS and without disorders affecting androgen concentrations), FAI, total testosterone and androstenedione were weakly but negatively correlated with age...
June 16, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28681988/effect-of-liraglutide-on-ectopic-fat-in-polycystic-ovary-syndrome-a-randomized-clinical-trial
#11
Signe Frøssing, Malin Nylander, Elizaveta Chabanova, Jan Frystyk, Jens Juul Holst, Caroline Kistorp, Sven O Skouby, Jens Faber
Women with polycystic ovary syndrome (PCOS) were treated with the GLP-1 receptor agonist liraglutide to investigate the effect on liver fat content, visceral adipose tissue (VAT), and the prevalence of nonalcoholic fatty liver disease (NAFLD). In a double-blind, placebo-controlled, randomized clinical trial 72 women with PCOS and BMI >25 kg/m(2) and/or insulin resistance were treated with liraglutide or placebo 1.8 mg/day (2:1) for 26 weeks. Liver fat content was assessed by (1) HMR spectroscopy, VAT by MRI, body composition by DXA, and glucose metabolism by oral glucose tolerance test...
July 6, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28678568/testosterone-is-associated-with-insulin-resistance-index-independently-of-adiposity-in-women-with-polycystic-ovary-syndrome
#12
Kari Luotola, Terhi T Piltonen, Johanna Puurunen, Laure C Morin-Papunen, Juha S Tapanainen
OBJECTIVE: To study the associations between androgens, glucose homeostasis, inflammation and statin treatment in women with polycystic ovary syndrome (PCOS). DESIGN AND METHODS: Oral glucose tolerance tests, androgens, hs-CRP and interleukin-1 receptor antagonist (IL-1Ra) were analyzed at baseline and after 6 months of atorvastatin (20 mg/d) or placebo treatment in 27 women with PCOS. RESULTS: Testosterone associated with insulin resistance measured with ISIMatsuda independently of BMI, age and SHBG concentrations and the full model, including IL-1Ra, hs-CRP and HDL-C, also showed independency of BMI and waist circumference (p ≤ ...
July 5, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28673896/serum-androgen-levels-and-their-relation-to-performance-in-track-and-field-mass-spectrometry-results-from-2127-observations-in-male-and-female-elite-athletes
#13
Stéphane Bermon, Pierre-Yves Garnier
OBJECTIVE: To describe and characterise serum androgen levels and to study their possible influence on athletic performance in male and female elite athletes. METHODS: 2127 observations of competition best performances and mass spectrometry-measured serum androgen concentrations, obtained during the 2011 and 2013 International Association of Athletics Federations World Championships, were analysed in male and female elite track and field athletes. To test the influence of serum androgen levels on performance, male and female athletes were classified in tertiles according to their free testosterone (fT) concentration and the best competition results achieved in the highest and lowest fT tertiles were then compared...
July 3, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28673039/a-reappraisal-of-testosterone-s-binding-in-circulation-physiological-and-clinical-implications
#14
Anna L Goldman, Shalender Bhasin, Frederick C W Wu, Meenakshi Krishna, Alvin M Matsumoto, Ravi Jasuja
In circulation, testosterone and other sex hormones are bound to binding proteins which play an important role in regulating their transport, distribution, metabolism, and biologic activity. According to the free hormone hypothesis, which has been debated extensively, only the unbound or free fraction is biologically active in target tissues. Consequently, accurate determination of the partitioning of testosterone between bound and free fractions is central to our understanding of how its delivery to the target tissues and biological activity are regulated, and, consequently, to the diagnosis and treatment of androgen disorders in men and women...
June 29, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/28672734/subclinical-hypothyroidism-does-not-influence-the-metabolic-and-hormonal-profile-of-women-with-pcos
#15
Eftihios Trakakis, Vasilios Pergialiotis, Erifili Hatziagelaki, Periklis Panagopoulos, Ioannis Salloum, Nikolaos Papantoniou
Background Subclinical hypothyroidism (SCH) is present in 5%-10% of polycystic ovary syndrome (PCOS) patients. To date, its impact on the metabolic and hormonal profile of those women remains controversial. The purpose of our study is to evaluate the impact of SCH on the glycemic, lipid and hormonal profile of PCOS patients. Materials and methods We conducted a prospective case control study of patients that attended the Department of Gynecological Endocrinology of our hospital. Results Overall, 280 women with PCOS were enrolled during a time period of 7 years (2009-2015)...
June 23, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28671321/the-influence-of-small-doses-of-ethanol-on-the-urinary-testosterone-to-epitestosterone-ratio-in-men-and-women
#16
Sami Albeiroti, Brian D Ahrens, Timofei Sobolevskii, Anthony W Butch
Endogenous steroid use can increase urinary testosterone/epitestosterone (T/E) values. In addition, ethanol in amounts >0.5 g per kg of body weight (g/kg) can also increase T/E values. However, the effect of smaller doses of ethanol on T/E values is unknown. The influence of 0.2 and 0.4 g/kg of ethanol on baseline T/E values in 20 men and 20 women with low and high baseline T/E values was investigated and correlated with ethyl glucuronide (EtG) and ethyl sulfate (EtS) concentrations. T/E values for 7 of the women were excluded from the study because of undetectable T concentrations or for other reasons...
July 3, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28670428/evaluation-of-relationship-between-body-mass-index-with-vitamin-d-receptor-gene-expression-and-vitamin-d-levels-of-follicular-fluid-in-overweight-patients-with-polycystic-ovary-syndrome
#17
Esmat Aghadavod, Hakimeh Mollaei, Mohammad Nouri, Hamed Hamishehkar
BACKGROUND: Polycystic ovary syndrome (PCOS) is the most common endocrine disorder associated with reproductive disorders and metabolic dysfunctions including insulin resistance. The roles of vitamin D in the regulation of metabolic modulations specifically involving insulin and reproduction processing are introduced. In addition, obesity appears to be closely associated with severity of PCOS. The present study is to evaluate the effect of body mass index (BMI) on vitamin D levels in follicular fluid and vitamin D receptor (VDR) expression levels in granulos cells...
July 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28655134/multiple-mechanisms-linking-type-2-diabetes-and-alzheimer-s-disease-testosterone-as-a-modifier
#18
Prita R Asih, Michelle L Tegg, Hamid Sohrabi, Malcolm Carruthers, Samuel E Gandy, Farid Saad, Giuseppe Verdile, Lars M Ittner, Ralph N Martins
Evidence in support of links between type-2 diabetes mellitus (T2DM) and Alzheimer's disease (AD) has increased considerably in recent years. AD pathological hallmarks include the accumulation of extracellular amyloid-β (Aβ) and intracellular hyperphosphorylated tau in the brain, which are hypothesized to promote inflammation, oxidative stress, and neuronal loss. T2DM exhibits many AD pathological features, including reduced brain insulin uptake, lipid dysregulation, inflammation, oxidative stress, and depression; T2DM has also been shown to increase AD risk, and with increasing age, the prevalence of both conditions increases...
June 22, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28649100/-aging-and-homeostasis-sex-hormones-and-aging
#19
Keizo Ohnaka
The decline in sex hormones along with aging is suggested to be involved in age-associated diseases such as cardiovascular diseases, osteoporosis, and dementia. The decrease of estrogen level after menopause is related to osteoporosis in addition to climacteric disturbance in women, while that of testosterone to sarcopenia, osteoporosis and late-onset hypogonadism in men. New treatment strategy is expected for targeting age-associated diseases against the decreased level of sex hormones.
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28647490/sex-biased-eicosanoid-biology-impact-for-sex-differences-in-inflammation-and-consequences-for-pharmacotherapy
#20
REVIEW
Simona Pace, Lidia Sautebin, Oliver Werz
The incidence, severity and progression of autoimmune diseases (e.g. scleroderma, multiple sclerosis, rheumatoid arthritis) and certain inflammatory diseases (e.g. asthma) are sex-biased where these pathologies dominate in women. However, other immune disorders such as sepsis, post-surgery infections and gout display higher incidence and severity in men. The molecular and cellular basis underlying this sex dimorphism remains incompletely elucidated but may provide important insights for sex-specific pharmacotherapy...
June 21, 2017: Biochemical Pharmacology
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