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https://www.readbyqxmd.com/read/28087298/the-utility-of-sex-hormone-binding-globulin-in-hypogonadism-and-infertile-males
#1
Joshua Ring, Charles Welliver, Mike Parenteau, Stephen Markwell, Robert E Brannigan, Tobias S Köhler
PURPOSE: We sought to determine what role SHBG played with male infertility patients. METHODS: Retrospective review of 168 males seen in a fertility clinic from 2012-2014, to investigate the accuracy of TT in the biochemical diagnosis of hypogonadism using cBT as the reference value. We used a multivariable analysis to assess SHBG as an independent predictor of infertility. RESULTS: Computations using cBT as a standard in the measurement of definitive biochemical hypogonadism (<156 ng/dL) revealed a sensitivity, specificity, PPV, and NPV respectively of 81%, 83%, 81%, and 82% in diagnosing hypogonadism with TT alone...
January 10, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28077498/modulation-of-shbg-binding-to-testosterone-and-estradiol-by-sex-and-morbid-obesity
#2
Maria Del Mar Grasa, José Gulfo, Núria Camps, Rosa Alcalá, Laura Monserrat, José María Moreno-Navarrete, F Ortega, Montserrat Esteve, Xavier Remesar, José Antonio Fernández-López, José Manuel Fernández-Real, Marià Alemany
OBJECTIVE: Sex hormone-binding globulin (SHBG) binds and transports testosterone and estradiol in plasma. The possibility that SHBG is a mixture of transporting proteins has been postulated. We analyzed in parallel the effects of obesity status on the levels and binding capacity of circulating SHBG and their relationship with testosterone and estradiol. DESIGN: Anthropometric measures and plasma were obtained from apparently healthy young (i.e. 35 ± 7 years) premenopausal women (n=32) and men (n=30), with normal weight and obesity (BMI>30 kg·m(-2))...
January 11, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28056660/biochemical-markers-reflecting-thyroid-function-in-athyreotic-patients-on-levothyroxine-monotherapy
#3
Mitsuru Ito, Akira Miyauchi, Mako Fujiwara, Waka Yoshioka, Akane Ide, Takumi Kudo, Eijun Nishihara, Minoru Kihara, Yasuhiro Ito, Kaoru Kobayashi, Akihiro Miya, Shuji Fukata, Mitsushige Nishikawa, Hirotoshi Nakamura, Nobuyuki Amino
BACKGROUND: Some investigators reported that among athyreotic patients on levothyroxine (LT4) monotherapy following total thyroidectomy, the patients with normal serum thyroid-stimulating hormone (TSH) levels had mildly low serum free triiodothyronine (FT3) levels, whereas the patients with mildly suppressed serum TSH levels had normal serum FT3 levels and the patients with strongly suppressed serum TSH had elevated serum FT3 levels. The objective of the present study was to clarify which of these three patient groups is closer to their preoperative euthyroid condition...
January 5, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28056433/pelvic-organ-prolapse-and-endogenous-circulating-sex-steroids-in-postmenopausal-women-a-case-control-study
#4
Barbara Bodner-Adler, Klaus Bodner, Cora Schneidinger, Oliver Kimberger, Ksenia Halpern, Heinz Koelbl, Wolfgang Umek
OBJECTIVE: We compared sex steroid levels of postmenopausal patients with symptomatic pelvic organ prolapse (POP) with postmenopausal matched patients without any sign of POP. Furthermore, we evaluated a possible relationship between sex steroid levels and various urogynecologic parameters in cases with POP. Main outcome of interest were differences in circulating estradiol levels between the two groups. STUDY DESIGN: We conducted a case-control study and 46 postmenopausal women with symptomatic POP≥stage 2 were matched 1:1 with 46 urogynecologic healthy women...
December 26, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28041602/serum-vitamin-d-and-sex-hormones-levels-in-men-and-women-the-multi-ethnic-study-of-atherosclerosis-mesa
#5
Di Zhao, Pamela Ouyang, Ian H de Boer, Pamela L Lutsey, Youssef M K Farag, Eliseo Guallar, David S Siscovick, Wendy S Post, Rita R Kalyani, Kevin L Billups, Erin D Michos
INTRODUCTION: 25-hydroxyvitamin D [25(OH)D] deficiency has been associated with low testosterone levels in men, but there are conflicting reports of its associations with sex hormones in women. Less is known about whether these associations are independent of adiposity and lifestyle factors, and whether they differ by race/ethnicity. AIM: To examine associations of 25(OH)D concentrations with sex hormone levels. METHODS: Cross-sectional analysis of 3017 men and 2929 women in a multi-ethnic cohort...
February 2017: Maturitas
https://www.readbyqxmd.com/read/28040126/prediction-of-gestational-diabetes-mellitus-at-first-trimester-in-low-risk-pregnancies
#6
Pınar Kumru, Resul Arisoy, Emre Erdogdu, Oya Demirci, Mustecep Kavrut, Cem Ardıc, Nihan Aslaner, Aysen Ozkoral, Aktug Ertekin
OBJECTIVE: We aimed to assess the relationship among the sex hormone-binding globulin (SHBG), homeostasis model assessment (HOMA), glycosylated hemoglobin (HbA1c), and cholesterol panel values to predict subsequent gestational diabetes mellitus (GDM) in low-risk pregnancies. MATERIALS AND METHODS: Thirty-eight pregnant women with GDM and 295 low-risk pregnant women without GDM were included in this study. Maternal blood samples were obtained during the first trimester examination to determine the SHBG, HbA1c, fasting blood glucose, insulin, thyroid stimulating hormone (TSH), free thyroxine, total cholesterol, triglycerides (TG), high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol (LDL-C) levels...
December 2016: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28026098/risk-factors-for-preeclampsia-in-infertile-chinese-women-with-polycystic-ovary-syndrome-a-prospective-cohort-study
#7
Hexia Xia, Ruixiu Zhang, Xiaoli Sun, Lu Wang, Wei Zhang
To explore preconception risk factors for preeclampsia (PE) in women with polycystic ovary syndrome (PCOS), a prospective cohort study was conducted in 92 infertile Chinese women with PCOS who had a singleton pregnancy by ovulation induction and were followed up for 6 weeks after delivery. The patients underwent assessment of physical, endocrine, and metabolic features before ovulation induction. Fifteen (16.3%) patients were diagnosed with PE. Logistic regression analysis showed that preconception sex hormone-binding globulin (SHBG), insulin level at 120 minutes, and body mass index were three independent risk factors for PE (odds ratio [OR], 0...
December 27, 2016: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/27990781/sex-differences-endogenous-sex-hormone-hormones-sex-hormone-binding-globulin-shbg-and-exogenous-disruptors-in-diabetes-and-related-metabolic-outcomes
#8
Simin Liu, Qi Sun
In assessing clinical and pathophysiological development of type 2 diabetes (T2D), the critical role of the sex steroids axis is underappreciated particularly concerning the sex specific relations with many relevant cardiometabolic outcomes. In this issue of the Journal, we provide a comprehensive overview of these strong associations of germline variants in the genes governing the sex-steroids pathways, plasma levels of steroid-hormones, and sex hormone-binding globulin (SHBG) with T2D risk that have been observed in many clinical as well as high-quality large prospective cohorts of men and women across ethnic populations...
December 19, 2016: Journal of Diabetes
https://www.readbyqxmd.com/read/27990161/sex-hormone-binding-globulin-modifies-testosterone-action-and-metabolism-in-prostate-cancer-cells
#9
Huika Li, Thy Pham, Brett C McWhinney, Jacobus P Ungerer, Carel J Pretorius, Derek J Richard, Robin H Mortimer, Michael C d'Emden, Kerry Richard
Sex Hormone Binding Globulin (SHBG) is the major serum carrier of sex hormones. However, growing evidence suggests that SHBG is internalised and plays a role in regulating intracellular hormone action. This study was to determine whether SHBG plays a role in testosterone uptake, metabolism, and action in the androgen sensitive LNCaP prostate cancer cell line. Internalisation of SHBG and testosterone, the effects of SHBG on testosterone uptake, metabolism, regulation of androgen responsive genes, and cell growth were assessed...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27974312/dietary-patterns-and-cardiometabolic-and-endocrine-plasma-biomarkers-in-us-women
#10
Hala B AlEssa, Vasanti S Malik, Changzheng Yuan, Walter C Willett, Tianyi Huang, Frank B Hu, Deirdre K Tobias
BACKGROUND: Healthful dietary patterns have been associated with lower risks of type 2 diabetes and coronary artery disease, but their relations with intermediate markers of cardiometabolic and endocrine health are less established. OBJECTIVE: We evaluated the Dietary Approaches to Stop Hypertension (DASH), the alternate Mediterranean diet (aMED), and the Alternate Healthy Eating Index (aHEI) diet-quality scores with cardiometabolic and endocrine plasma biomarkers in US women...
December 14, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27973382/lower-insulin-sensitivity-is-related-to-lower-relative-muscle-cross-sectional-area-lower-muscle-density-and-lower-handgrip-force-in-young-and-middle-aged-non-diabetic-men
#11
T Gysel, C Tonoli, S Pardaens, D Cambier, J-M Kaufman, H-G Zmierczak, S Goemaere, B Lapauw, P Calders
OBJECTIVES: This study investigated whether an association between insulin resistance (IR) and muscle parameters is appreciable in young healthy men, independent of obesity. Furthermore, markers of muscle metabolism and hormones/possible determinants, were explored. METHODS: 358 healthy young men were divided into a less and more insulin sensitive (LIS [age=33.2±5.4, BMI=23.4±2.3] and MIS [age=35.5±5.3, BMI=28.1±3.7]) group based on upper and lower quartile of HOMA-IR...
December 14, 2016: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/27925651/model-based-dose-selection-for-intravaginal-ring-formulations-releasing-anastrozole-and-levonorgestrel-intended-for-the-treatment-of-endometriosis-symptoms
#12
Isabel Reinecke, Marcus-Hillert Schultze-Mosgau, Rüdiger Nave, Heinz Schmitz, Bart A Ploeger
Pharmacokinetics (PK) of anastrozole (ATZ) and levonorgestrel (LNG) released from an intravaginal ring (IVR) intended to treat endometriosis symptoms were characterized, and the exposure-response relationship focusing on the development of large ovarian follicle-like structures was investigated by modeling and simulation to support dose selection for further studies. A population PK analysis and simulations were performed for ATZ and LNG based on clinical phase 1 study data from 66 healthy women. A PK/PD model was developed to predict the probability of a maximum follicle size ≥30 mm and the potential contribution of ATZ beside the known LNG effects...
December 7, 2016: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27923166/a-comparative-systematic-review-of-yasmin-drospirenone-pill-versus-standard-treatment-options-for-symptoms-of-polycystic-ovary-syndrome
#13
REVIEW
Jing Li, Jing Ren, Wenxia Sun
OBJECTIVES: To systematically review the impact of Yasmin (drospirenone pill) compares with other standard treatments for symptoms of Polycystic Ovary Syndrome (PCOS). STUDY DESIGN: The relevant studies of the randomized controlled trials in women with PCOS treated with drospirenone were retrieved and the systematic evaluation was conducted. RESULTS: Eighteen articles were included. Compared with drospirenone (DRSP) monotherapy, DRSP plus metformin was better in reducing body mass index (BMI), luteinizing hormone (LH) and low-density lipoprotein cholesterol (LDL-C)...
November 16, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27920511/relationships-between-fto-rs9939609-mc4r-rs17782313-and-ppar%C3%AE-rs1801282-polymorphisms-and-the-occurrence-of-selected-metabolic-and-hormonal-disorders-in-middle-aged-and-elderly-men-a-preliminary-study
#14
Iwona Rotter, Karolina Skonieczna-Żydecka, Danuta Kosik-Bogacka, Grażyna Adler, Aleksandra Rył, Maria Laszczyńska
PURPOSE: Metabolic disorders, including MetS, obesity, and lipid disorders, may be related to genetic factors. Metabolic disorders are associated with decreased TS levels in aging men. The aim of this study was to evaluate the relationship between FTO rs9939609, MC4R rs17782313, and PPARγ rs1801282 polymorphisms and the presence of MetS and its components, the concurrent lipid disorders, as well as sex hormone concentrations. SUBJECTS AND METHODS: This study involved 272 men of Caucasian descent aged 50-75 years...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27916832/anthropometric-measurements-serum-reproductive-hormonal-levels-and-sexual-development-among-boys-in-the-rural-western-cape-south-africa
#15
Jun Mao, Mohamed Aqiel Dalvie
Data on growth and sexual maturation among boys from the rural Western Cape in South Africa is limited. A cross-sectional study of 269 school boys was conducted testing for serum luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone, sex hormone binding globulin (SHBG) and estradiol (E2); height, weight and body mass index (BMI); sexual maturity (using Tanner Stages) and a questionnaire (demographic and medical history). The median age at pubertal onset (Tanner Stage 2) and Tanner Stage 5 was 11...
November 29, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27914732/interaction-of-sex-steroid-hormones-and-obesity-on-insulin-resistance-and-type-2-diabetes-in-men-the-third-national-health-and-nutrition-examination-survey
#16
Ji Li, Hong Lai, Shaoguang Chen, Hong Zhu, Shenghan Lai
AIMS: We examined interaction of sex steroid hormones and obesity with regard to insulin resistance (IR) and type 2 diabetes (T2D) by using nationally representative data from the US. METHODS: Data of 1461 men aged ≥20years who participated in the Third National Health and Nutrition Examination Survey were analyzed. Multiplicative interaction was calculated by cross-product interaction terms in multivariable logistic regression models. Additive interaction was assessed by the relative excess risk due to interaction (RERI)...
October 22, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/27907900/insulin-resistance-in-polycystic-ovary-syndrome-a-systematic-review-and-meta-analysis-of-euglycaemic-hyperinsulinaemic-clamp-studies
#17
Samantha Cassar, Marie L Misso, William G Hopkins, Christopher S Shaw, Helena J Teede, Nigel K Stepto
STUDY QUESTION: What is the degree of intrinsic insulin resistance (IR) in women with polycystic ovary syndrome (PCOS) and the relative contribution of BMI to overall IR based on meta-analysis of gold standard insulin clamp studies? SUMMARY ANSWER: We report an inherent reduction (-27%) of insulin sensitivity (IS) in PCOS patients, which was independent of BMI. WHAT IS ALREADY KNOWN: PCOS is prevalent, complex and underpinned by IR but controversies surround the degree of intrinsic IR in PCOS, the effect of BMI and the impact of the different diagnostic criteria (NIH versus Rotterdam) in PCOS...
November 2016: Human Reproduction
https://www.readbyqxmd.com/read/27898988/lipid-accumulation-product-lap-as-an-index-of-metabolic-and-hormonal-disorders-in-aging-men
#18
I Rotter, A Rył, A Szylińska, W Pawlukowska, A Lubkowska, M Laszczyńska
Lipid accumulation product (LAP) is an index used for evaluating lipid overaccumulation in adults. Our study aimed at assessing associations between LAP and metabolic syndrome (MetS) and its components, age-related testosterone deficiency syndrome (TDS), low-density cholesterol (LDL), as well as HOMA-IR (insulin resistance ratio), insulin level in non-diabetics and total testosterone (TT), estradiol E2, dehydroepiandrosterone sulphate (DHEAs) and sex hormone-binding globulin (SHBG) in aging men.313 men aged 50-75 were surveyed with regard to the prevalence of diabetes (T2DM) and hypertension (HT)...
November 29, 2016: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/27898283/pregestational-type-2-diabetes-and-gestational-diabetes-exhibit-different-sexual-steroid-profiles-during-pregnancy
#19
Claudio Villarroel, Abril Salinas, Patricia López, Paulina Kohen, Gustavo Rencoret, Luigi Devoto, Ethel Codner
Higher androgen levels are observed in non-pregnant women with diabetes. Whether this hormonal profile is found during pregnancy is unknown. The aim of this study was to determine the sexual steroids levels in pregnant women with pregestational type 2 (T2D) and gestational diabetes (GD) compared to healthy control (C) pregnant women during the second half of pregnancy. A prospective study of 69 pregnant women with T2D (n = 21), GD (n = 24) and control (C, n = 24) was followed up during the second half of gestation...
November 29, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27898110/associations-of-blood-lead-levels-with-reproductive-hormone-levels-in-men-and-postmenopausal-women-results-from-the-spect-china-study
#20
Chi Chen, Ningjian Wang, Hualing Zhai, Xiaomin Nie, Honglin Sun, Bing Han, Qin Li, Yi Chen, Jing Cheng, Fangzhen Xia, Li Zhao, Yanjun Zheng, Zhoujun Shen, Yingli Lu
We examined whether blood lead levels (BLLs) were associated with reproductive hormone levels in a cross-sectional study using data from the SPECT-China study. We selected 2286 men and 1571 postmenopausal women without hormone replacement therapy. BLLs, blood cadmium, total testosterone (TT), oestradiol (E2), luteinizing hormone (LH), follicle stimulating hormone (FSH) and sex hormone binding globulin(SHBG) levels were measured. The results showed that median values (interquartile range) of BLLs were 44.00 μg/L (29...
November 29, 2016: Scientific Reports
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