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https://www.readbyqxmd.com/read/29680519/is-dpp4-activity-increased-in-pcos
#1
Letícia Dinis da C Braga, Amelio F Godoy-Matos, Priscila de Oliveira Siciliano, José Otávio do Amaral Corrêa, Denise Pires Carvalho
AIMS: Dipeptidyl peptidase-4 (DPP4) is an adipokine with greater expression in visceral fat and related with insulin resistance (IR). Polycystic ovary syndrome (PCOS) is also associated with IR. Our study aims to evaluate DPP4 activity in PCOS. MATERIALS AND METHODS: Thirty PCOS patients were compared to 28 healthy women. Body composition by dual X-ray absorptiometry (DXA), plasma activity of DPP4 and biochemical variables were performed. All participants underwent an oral glucose tolerance test for insulin and glucose analysis...
April 14, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29671886/serum-androgens-and-risk-of-atrial-fibrillation-in-older-men-the-cardiovascular-health-study
#2
Michael A Rosenberg, Molly M Shores, Alvin M Matsumoto, Petra Bůžková, Leslie A Lange, Richard A Kronmal, Susan R Heckbert, Kenneth J Mukamal
BACKGROUND: Decline in serum androgens is common among older men and has been associated with cardiovascular disease, although its role in risk of atrial fibrillation (AF) has not been well defined. HYPOTHESIS: Low serum androgens are associated with an increased risk of AF. METHODS: We examined the prospective associations between testosterone, its more active metabolite dihydrotestosterone (DHT), and sex-hormone binding globulin (SHBG) with risk of AF among 1019 otherwise healthy men of average age 76...
April 19, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29666348/testosterone-levels-and-the-genetic-variation-of-sex-hormone-binding-globulin-gene-of-bubalus-bubalis-bulls-in-egypt
#3
Samy Naeem, Ahmed Ghoneim, Gamal Abd-Allah, Omaima Hassan
Testosterone is themain plasma androgen produced and secreted by male testis. To be bioactive, it binds to sex hormonebinding globulin (SHBG), i.e. the major transporter protein of sex steroids in the blood of mammals and other vertebrate species.Firstly, this study aimed to determine the levels of testosterone in different-age groups of buffalo bulls (Bubalus bubalis) in Egypt, and secondly to screen the genetic polymorphisms in their SHBG gene and to investigatewhether these polymorphisms are associated with the level of the circulating serum testosterone...
March 2018: Journal of Genetics
https://www.readbyqxmd.com/read/29665142/risk-factors-for-late-onset-hypogonadism
#4
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/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
#5
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/29658833/gonadopenia-and-aging-in-men
#6
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/29649996/the-effects-of-synbiotic-supplementation-on-hormonal-status-biomarkers-of-inflammation-and-oxidative-stress-in-subjects-with-polycystic-ovary-syndrome-a-randomized-double-blind-placebo-controlled-trial
#7
Khadijeh Nasri, Mehri Jamilian, Elham Rahmani, Fereshteh Bahmani, Maryam Tajabadi-Ebrahimi, Zatollah Asemi
BACKGROUND: To our knowledge, no reports are available indicating the effects of synbiotic supplementation on hormonal status, biomarkers of inflammation and oxidative stress in subjects with polycystic ovary syndrome (PCOS). This research was done to assess the effects of synbiotic supplementation on hormonal status, biomarkers of inflammation and oxidative stress in subjects with PCOS. METHODS: This randomized double-blind, placebo-controlled trial was conducted on 60 subjects diagnosed with PCOS according to the Rotterdam criteria...
April 12, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29628218/effects-of-sex-hormones-and-age-on-brain-volume-in-post-menopausal-women
#8
Gwang-Won Kim, Kwangsung Park, Gwang-Woo Jeong
BACKGROUND: Investigation of the effect of sex hormones on the brain volume in women provides a unique opportunity to examine menopause-related morphometric alterations. AIM: To evaluate brain morphological alterations in post-menopausal women using voxel-based morphometry and its correlations with sex hormone levels. METHODS: 20 Pre-menopausal women and 20 post-menopausal women underwent structural MRI. OUTCOMES: T1-weighted magnetic resonance data were acquired and serum sex hormones including total estrogen, estriol, estradiol (E2), follicle-stimulating hormone, free testosterone, SHBG, and luteinizing hormone were measured...
April 5, 2018: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29618085/reassessing-free-testosterone-calculation-by-liquid-chromatography-tandem-mass-spectrometry-direct-equilibrium-dialysis
#9
Tom Fiers, Frederick Wu, Paolo Moghetti, Dirk Vanderschueren, Bruno Lapauw, Jean Marc Kaufman
BACKGROUND: Assessment of free testosterone (FT) might help evaluate androgen status in subjects with borderline total testosterone (T) and/or altered SHBG levels. However, validity of different methods to measure or calculate FT is matter for debate. METHODS: Serum from 183 women and 146 men was analysed using equilibrium dialysis (ED) with FT directly measured by LC/MS-MS. FT calculation was re-evaluated for the mass action law-based equation according to Vermeulen (cFT-V) , empirical equations according to Ly (cFT-L) and a recently proposed calculation based on a multi-step, dynamic, allosteric model according to Zakharov (cFT-Z)...
March 29, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29602978/effect-of-diane-35-alone-or-in-combination-with-orlistat-or-metformin-in-chinese-polycystic-ovary-syndrome-patients
#10
Xiangyan Ruan, Jinghua Song, Muqing Gu, Lijuan Wang, Husheng Wang, Alfred O Mueck
OBJECTIVE: To evaluate the effect of Diane-35, alone or in combination with orlistat or metformin, on androgen and body fat percentage parameters in Chinese overweight and obese polycystic ovary syndrome (PCOS) patients with insulin resistance. METHODS: A total of 240 PCOS women were randomly allocated to receive Diane-35 alone (D group), Diane-35 plus orlistat (DO group), Diane-35 plus metformin (DM group), or Diane-35 plus orlistat plus metformin (DOM group). Serum TT, DHEA-S, androstenedione, SHBG, FT, FAI, body fat, and body fat percentage were assessed at baseline and after 12 weeks of treatment...
March 30, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29590099/polycystic-ovary-syndrome-androgen-excess-and-the-risk-of-nonalcoholic-fatty-liver-disease-in-women-a-longitudinal-study-based-on-a-united-kingdom-primary-care-database
#11
Balachandran Kumarendran, Michael W O'Reilly, Konstantinos N Manolopoulos, Konstantinos A Toulis, Krishna M Gokhale, Alice J Sitch, Chandrika N Wijeyaratne, Arri Coomarasamy, Wiebke Arlt, Krishnarajah Nirantharakumar
BACKGROUND: Androgen excess is a defining feature of polycystic ovary syndrome (PCOS), which affects 10% of women and represents a lifelong metabolic disorder, with increased risk of type 2 diabetes, hypertension, and cardiovascular events. Previous studies have suggested an increased risk of nonalcoholic fatty liver disease (NAFLD) in individuals with PCOS and implicated androgen excess as a potential driver. METHODS AND FINDINGS: We carried out a retrospective longitudinal cohort study utilizing a large primary care database in the United Kingdom, evaluating NAFLD rates in 63,120 women with PCOS and 121,064 age-, body mass index (BMI)-, and location-matched control women registered from January 2000 to May 2016...
March 2018: PLoS Medicine
https://www.readbyqxmd.com/read/29583035/a-long-term-follow-up-study-of-men-born-with-very-low-birth-weight-and-their-reproductive-hormone-profile
#12
Mats Hammar, Erika Larsson, Marie Bladh, Orvar Finnström, P O Gäddlin, Ingemar Leijon, Elvar Theodorsson, Gunilla Sydsjö
Environmental factors during the fetal period may adversely affect reproductive functions in men being born with very low birth weight (VLBW, <1500 g). The objective of this prospective, controlled cohort study was to investigate if VLBW men have an altered reproductive hormone profile compared with men born at term. The study group initially consisted of all VLBW boys live-born between 1 February 1987 and 30 April 1988 in the south-east region of Sweden (n = 47). A control child was chosen born at term, at the same hospital, with the same parity, without malformations, and next in order after each VLBW child who survived the first four weeks (n = 45)...
March 27, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29578420/-correlation-of-anti-mullerian-hormone-with-hormonal-and-ovarian-morphological-characteristics-in-patients-with-polycystic-ovary-syndrome-with-and-without-insulin-resistance
#13
E Asanidze, J Khristesashvili, L Pkhaladze, L Barbakadze
PCOS has a leading place in women's infertility. Based on the data of recent researches, Anti-Mullerian hormone (AMH) has been considered as one of the diagnostic criteria for PCOS. The aim of study was to determine the correlation of Anti-Mullerian hormone with hormonal and ovarian morphological characteristics in patients with PCOS, with and without insulin resistance. 110 women with diagnosis of PCOS were involved in the study. Patients were divided into two groups: PCOS patients with insulin resistance (60 women) and PCOS patients without insulin resistance (50 women)...
February 2018: Georgian Medical News
https://www.readbyqxmd.com/read/29555933/author-correction-resveratrol-increases-hepatic-shbg-expression-through-human-constitutive-androstane-receptor-a-new-contribution-to-the-french-paradox
#14
Cristina Saez-Lopez, Laura Brianso-Llort, J Torres-Torronteras, Rafael Simó, Geoffrey L Hammond, David M Selva
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
March 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29555310/bone-histomorphometry-in-transiliac-biopsies-from-48-normal-healthy-men
#15
Robert R Recker, Mohammed K Akhter, Joan M Lappe, Patrice Watson
Investigators and clinicians use bone histomorphometry data from iliac bone biopsies to study bone abnormalities in diseased patients, and to understand the safety and effectiveness of pharmaceutical interventions. This requires access to a high quality normal data-set to be used for comparisons, a resource that has not been adequate to date. The objective of this work is to present static and dynamic bone histomorphometry data from transilial bone biopsies performed on 48 healthy males, evenly distributed between ages 45 and 75...
March 16, 2018: Bone
https://www.readbyqxmd.com/read/29551255/sex-steroids-sex-hormone-binding-globulin-and-levels-of-n-terminal-pro-brain-natriuretic-peptide-in-postmenopausal-women
#16
Marija Glisic, Lyda Z Rojas, Eralda Asllanaj, Kris G Vargas, Maryam Kavousi, M Arfan Ikram, Bart C J M Fauser, Joop S E Laven, Taulant Muka, Oscar H Franco
BACKGROUND: Amino-terminal pro-B-type natriuretic peptide (NT-proBNP) has a well-documented prognostic value for cardiovascular disease and sex-hormones are suggested to modulate NT-proBNP levels. OBJECTIVE: To examine whether endogenous sex-hormones and sex hormone-binding globulin (SHBG) are associated with NT-proBNP levels in postmenopausal women free of clinical cardiovascular diseases. METHODS: Total estradiol (E2 ), total testosterone (TT), androstenedione (AD), dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEAS), sex hormone-binding globulin (SHBG) and NT-proBNP were assessed in 4112 postmenopausal women free of cardiovascular diseases from the prospective population-based Rotterdam Study...
March 6, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29548752/vitamin-d-is-associated-with-bioavailability-of-androgens-in-eumenorrheic-women-with-prior-pregnancy-loss
#17
Daniel L Kuhr, Lindsey A Sjaarda, Zeina Alkhalaf, Ukpebo R Omosigho, Matthew T Connell, Robert M Silver, Keewan Kim, Neil J Perkins, Tiffany L Holland, Torie C Plowden, Enrique F Schisterman, Sunni L Mumford
BACKGROUND: Prior studies have reported mixed results regarding relationships between vitamin D, androgens, and sex hormone binding globulin (SHBG) in patients with polycystic ovary syndrome (PCOS). However, less is known regarding these associations in eumenorrheic, premenopausal women. OBJECTIVE: Our objective was to study the relationships between serum vitamin D and androgen biomarkers in eumenorrheic women with a history of pregnancy loss who were attempting pregnancy...
March 13, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29546692/vitamin-d-supplementation-does-not-prevent-the-testosterone-decline-in-males-with-advanced-heart-failure-the-evita-trial
#18
Armin Zittermann, Jana B Ernst, Sylvana Prokop, Uwe Fuchs, Jens Dreier, Joachim Kuhn, Cornelius Knabbe, Heiner K Berthold, Ioanna Gouni-Berthold, Jan F Gummert, Jochen Börgermann, Stefan Pilz
PURPOSE: Observational studies indicate a positive association between circulating 25-hydroxyvitamin D (25OHD) and testosterone (T) concentrations. Because low 25OHD concentrations and T deficiency are considered to be a generalized phenomenon in patients with advanced heart failure (HF), we aimed to investigate whether vitamin D supplementation has beneficial effects on T indices in these patients. METHODS: In a pre-specified secondary analysis of the EVITA (effect of vitamin D on mortality in heart failure) randomized controlled trial, we analyzed in male subjects with 25OHD concentrations < 75 nmol/L the effect of a daily vitamin D3 supplement of 4000 IU for 3 years (n = 71) vs...
March 15, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29514404/a-prospective-cohort-study-of-early-pregnancy-risk-factors-for-gestational-diabetes-in-women-with-polycystic-ovarian-syndrome
#19
Guanghui Li, Wenyu Huang, Li Zhang, Zhihong Tian, Wei Zheng, Teng Wang, Ting Zhang, Weiyuan Zhang
BACKGROUND: Polycystic ovarian syndrome (PCOS) is a strong risk factor for gestational diabetes (GDM). However, the association between features of PCOS during early pregnancy and the risk of GDM is not clearly characterized. In this prospective cohort study, we seek to identify early-pregnancy risk factors for GDM in PCOS women. METHODS: Between 2011-2013, 248 women with PCOS were followed from their first prenatal visit to delivery. Multiple early-pregnancy metabolic factors were evaluated for their association with the risk of GDM...
March 7, 2018: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/29511577/the-relationship-between-lipoprotein-associated-phospholipase-a2-with-cardiovascular-risk-factors-in-testosterone-deficiency
#20
Mustafa Keleşoğlu, Fuat Kızılay, Burcu Barutçuoğlu, Güneş Başol, Fulden Saraç, Işıl Mutaf, Bülent Semerci
Objective: Lipoprotein-associated phospholipase A2 (Lp-PLA2) which is believed to play a role in atherosclerotic inflammatory process due to its function in hydrolysis of phospholipids and release of pro-inflammatory products, is considered as a novel biomarker for vascular risk. In this study we aimed to investigate the alterations in Lp-PLA2 and its relationship with other cardiovascular risk factors in patients with testosterone deficiency. Material and methods: Forty hypogonadic male and 30 healthy male aged between 18-50 years were enrolled in this study...
March 2018: Turkish Journal of Urology
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