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https://www.readbyqxmd.com/read/29242633/sexual-function-in-women-with-polycystic-ovary-syndrome-and-their-hormonal-and-clinical-correlations
#1
Fatemeh Nasiri Amiri, Fahimeh Ramezani Tehrani, Sedighe Esmailzadeh, Maryam Tohidi, Fereidoun Azizi, Zahra Basirat
Polycystic ovary syndrome (PCOS) appears to be related to sexual dysfunction, especially if associated with obvious clinical and hormonal signs of hyperandrogenism. The objective of this study was to determine the correlation of PCOS and its hormonal and clinical parameters with sexual function. This prospective, cross-sectional study conducted on 18-45-year-old PCOS women (according to the Rotterdam criteria), who were referred to the Reproductive Endocrinology Research Center, Iran, was invited to participate from January 2012 to December 2015...
December 15, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/29217212/ovarian-morphology-by-transabdominal-ultrasound-correlates-with-reproductive-and-metabolic-disturbance-in-adolescents-with-pcos
#2
Beth W Rackow, Heidi Vanden Brink, Lynwood Hammers, Clare A Flannery, Marla E Lujan, Tania S Burgert
PURPOSE: To determine whether ovarian morphology imaged using transabdominal ultrasonography reflects clinical and metabolic features in adolescents with polycystic ovary syndrome (PCOS). METHODS: A retrospective pilot study was conducted in 33 adolescents (12-18 years) with PCOS as defined by hyperandrogenism and irregular cycles. Adolescents underwent the following assessments at a random time during the menstrual cycle: transabdominal ultrasonography, physical examination (height, weight, and systolic and diastolic blood pressure), fasting hormonal tests (free, percent free, and total testosterone, androstenedione, follicle stimulating hormone, luteinizing hormone), and metabolic tests (including an oral glucose tolerance test, fasting and 2-hour insulin and glucose, homeostatic model assessment of insulin resistance, and whole-body insulin sensitivity index)...
December 5, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29205417/inhibition-of-germinal-vesicle-breakdown-in-xenopus-oocytes-in-vitro-by-a-series-of-substituted-glycol-ethers
#3
Douglas J Fort, Michael B Mathis, Patrick D Guiney, John A Weeks
A 24 hour in vitro Xenopus oocyte maturation (germinal vesicle breakdown [GVBD]) assay developed by Pickford and Morris (Environmental Health Perspectives, 1999, 107, 285-292) was used to screen a series of substituted glycol ethers (GEs). Substituted GEs included: ethylene glycol monomethyl ether (EGME); EG monoethyl ether (EGEE); EG monopropyl ether (EGPE); EG monobutyl ether (EGBE); EG monohexyl ether (EGHE); diethylene glycol monomethyl ether (DGME); triethylene glycol monomethyl ether (TGME); ethylene glycol monophenyl ether (EGPhE); EG monobenzyl ether (EGBeE); EG diphenyl ether (EGDPhE); and propylene glycol monophenyl ether (PGPhE)...
December 4, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29191401/comparative-profiling-of-adrenal-steroids-in-maternal-and-umbilical-cord-blood
#4
Simon Travers, Laetitia Martinerie, Pascal Boileau, Qiong-Yao Xue, Marc Lombès, Eric Pussard
Fetal steroidome in late pregnancy receives multiple contributions from both maternal and fetal adrenals as well as from placenta. Depressed glucocorticoid levels have been reported in fetal blood at birth, yet studies on mineralocorticoid pathways are sparse. To investigate biosynthesis pathways at birth, adrenal steroids profiles were established in paired mothers and neonates. Forty-six paired healthy term newborns and their mothers from the Aldo cohort were assessed. Steroidomic profiles of mineralocorticoids, glucocorticoids and adrenal androgens were established from umbilical cord and maternal blood at birth using a highly sensitive and specific LC-MS/MS methodology...
November 27, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29175172/a-diagnostic-curiosity-of-isolated-androstenedione-elevation-due-to-autoantibodies-against-horseradish-peroxidase-label-of-the-immunoassay
#5
Yvonne Yijuan Lim, Lizhen Ong, Tze Ping Loh, Sunil Kumar Sethi, Andrew A J Sng, Kah Yin Loke, David J Halsall, Ieuan A Hughes, Yung Seng Lee
Two sisters with hirsutism presented with mild hirsutism and isolated, grossly elevated (>34.9nmol/L) serum concentrations of androstenedione measured by competitive, homogeneous immunoassay. The clinically discordant laboratory results prompted us to look for assay interference. In this immunoassay, horseradish peroxidase (HRP)-conjugated androstenedione competes with endogenous androstenedione for binding with the solid-phase polyclonal rabbit IgG antibodies. After a wash step, the amount of signal generated by the bound HRP conjugate is inversely proportional to the androstenedione concentration...
November 23, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29174867/the-synthesis-of-steroids-by-taenia-crassiceps-wfu-cysticerci-and-tapeworms-is-related-to-the-developmental-stages-of-the-parasites
#6
J M Patricio-Gómez, R A Valdez, A Veloz, L Aguilar-Vega, R Zurabian, M C Romano
Taeniids tapeworms are hermaphroditic helminths that gradually develop testis and ovaries in their reproductive units. The larval stage of the tapeworms named cysticercus is a vesicle that contains the scolex and proliferates asexually in the abdominal cavity of mice. Once in the host, they evaginate, attach to the gut and develop into an adult organism, the tapeworm. We have previously reported reported that T. crassiceps ORF and solium cysticerci transform steroid precursors to androgens and estrogens. Taenia crassiceps WFU cysticerci can also synthesize corticosteroids...
November 22, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29169749/comprehensive-assessment-of-sex-hormones-in-takotsubo-syndrome
#7
Christian Möller, Thomas Stiermaier, Georg Brabant, Tobias Graf, Holger Thiele, Ingo Eitel
BACKGROUND: The detailed pathomechanism of Takotsubo syndrome (TS) is still elusive. Due to the predominance of postmenopausal females, a potential role of sex hormones has been suggested. However, the limited available data are contradictory. The aim of this study was to comprehensively assess the role of sex hormone levels in a large cohort of TS patients. METHODS: Serum samples of 57 female TS patients and 57 female patients with myocardial infarction (MI), matched for age (±2years) and repolarization disturbances were analyzed for estradiol (E2), estrone (E1), testosterone and androstenedione using liquid chromatography-tandem mass spectrometry...
January 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29164590/the-effect-of-abdominal-obesity-in-patients-with-polycystic-ovary-syndrome-on-metabolic-parameters
#8
G Franik, A Bizoń, S Włoch, D Pluta, Ł Blukacz, H Milnerowicz, P Madej
OBJECTIVE: Polycystic ovarian syndrome and obesity contribute to the metabolic complications for women of reproductive age. The aim of present study was to analyze the effect of abdominal obesity expressed using waist/hip ratio (WHR) in patients with polycystic ovary syndrome on metabolic parameters. PATIENTS AND METHODS: The study included 659 women with PCOS with WHR <0.8 and ≥0.8 aged between 17 and 44 years. Patients were tested for follicular stimulating hormone, luteinizing hormone, 17-beta-estradiol, dehydroepiandrosterone sulfate, androstenedione, sex hormone binding globulin, and total lipid profile during the follicular phase (within 3 and 5 days of their menstrual cycle)...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29144993/evaluate-the-effects-of-antiepileptic-drugs-on-reproductive-endocrine-system-in-newly-diagnosed-female-epileptic-patients-receiving-either-valproate-or-lamotrigine-monotherapy-a-prospective-study
#9
Harpreet Singh Sidhu, R Srinivasa, Akshay Sadhotra
OBJECTIVE: To investigate the development of reproductive endocrine changes in Indian women with epilepsy initiating on either Valproate (VPA) or Lamotrigine (LTG) monotherapy. METHODS: Reproductive hormonal profiles, hirsutism, ovarian morphology by ultrasonography and menstrual cycle data in newly diagnosed women with epilepsy taking VPA (n=34) or LTG (n=32) monotherapy were compared. None of the women were receiving hormonal contraception. Patients gave details of seizure type and frequency, medical and drug history...
October 28, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29138943/contaminants-of-emerging-concern-in-surface-waters-in-barbados-west-indies
#10
Quincy A Edwards, Sergei M Kulikov, Leah D Garner-O'Neale, Chris D Metcalfe, Tamanna Sultana
Contaminants of emerging concern (CECs), including pharmaceuticals, artificial sweeteners, steroid hormones, and current-use pesticides have been detected in surface waters around the world, but to date, there have been no reports in the peer-reviewed literature on the levels of these classes of contaminants in freshwater resources in the Caribbean region. In the present study, multi-residue solid phase extraction (SPE) and liquid chromatography with tandem mass spectroscopy (LC-MS/MS) were used to analyze grab samples of surface waters collected from five different watersheds in Barbados, West Indies...
November 14, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29137864/synthesis-molecular-docking-and-qsar-study-of-sulfonamide-based-indoles-as-aromatase-inhibitors
#11
Ratchanok Pingaew, Prasit Mandi, Veda Prachayasittikul, Supaluk Prachayasittikul, Somsak Ruchirawat, Virapong Prachayasittikul
Thirty four of indoles bearing sulfonamides (11-44) were synthesized and evaluated for their anti-aromatase activities. Interestingly, all indole derivatives inhibited the aromatase with IC50 range of 0.7-15.3 μM. Indoles (27-36) exerted higher aromatase inhibitory activity than that of ketoconazole. The phenoxy analogs 28 and 34 with methoxy group were shown to be the most potent compounds with sub-micromolar IC50 values (i.e., 0.7 and 0.8 μM, respectively) without affecting to the normal cell line. Molecular docking demonstrated that the indoles 28, 30 and 34 could occupy the same binding site on the aromatase pocket and share several binding residues with those of the natural substrate (androstenedione), which suggested the competitive binding could be the mode of inhibition of the compounds...
October 20, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29124543/determinants-of-prolactin-in-postmenopausal-chinese-women-in-singapore
#12
Tiffany A Katz, Anna H Wu, Frank Z Stanczyk, Renwei Wang, Woon-Puay Koh, Jian-Min Yuan, Steffi Oesterreich, Lesley M Butler
PURPOSE: Mechanistic and observational data together support a role for prolactin in breast cancer development. Determinants of prolactin in Asian populations have not been meaningfully explored, despite the lower risk of breast cancer in Asian populations. METHODS: Determinants of plasma prolactin were evaluated in 442 postmenopausal women enrolled in the Singapore Chinese Health Study, a population-based prospective cohort study. At baseline all cohort members completed an in-person interview that elicited information on diet, menstrual and reproductive history, and lifestyle factors...
November 9, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29094433/effects-of-vitamin-d-supplementation-on-insulin-sensitivity-and-androgen-levels-in-vitamin-d-deficient-polycystic-ovary-syndrome-patients
#13
Cihan Karadağ, Tevfik Yoldemir, Dilek Gogas Yavuz
AIM: The aim of this study was to identify the effects of vitamin D supplementation on insulin sensitivity and androgen levels in vitamin-D-deficient polycystic ovary syndrome (PCOS) patients. METHODS: Sixty-seven vitamin-D-deficient (25-hydroxyvitamin D [25(OH)D] levels below 20 ng/mL) PCOS patients and 54 vitamin-D-deficient non-PCOS volunteer subjects matched for age and body mass index were enrolled to this prospective study. All participants were given 50 000 IU/week cholecalciferol orally for 8 weeks and 1500 IU/day for 4 weeks...
November 2, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29090431/modulatory-effects-of-alpha-lipoic-acid-ala-administration-on-insulin-sensitivity-in-obese-pcos-patients
#14
A D Genazzani, K Shefer, D Della Casa, A Prati, A Napolitano, A Manzo, G Despini, T Simoncini
PURPOSE: To evaluate the efficacy of alpha-lipoic acid (ALA) administration on hormonal and metabolic parameters of obese PCOS patients. METHODS: A group of 32 obese PCOS patients were selected after informed consent. 20 patients referred to have first grade relatives with diabetes type I or II. Hormonal and metabolic parameters as well as OGTT were evaluated before and after 12 weeks of ALA integrative administration (400 mg per os every day). RESULTS: ALA administration significantly decreased insulin, glucose, BMI and HOMA index...
October 31, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29083134/clinical-endocrinology-and-hormones-quantitation-the-increasing-role-of-mass-spectrometry
#15
Federica D'Aurizio, Marco Cantù
Clinical endocrinology has always had a close relationship with laboratory medicine. In fact, the quantification of hormones is of great importance for diagnosis, treatment, recurrence and patient's prognosis of endocrine disorders. This review dealt with the role of the laboratory in diagnosing endocrine pathologies related to adrenal gland, pituitary, gonads and thyroid. The measurements of the main hormones (17- hydroxyprogesterone, androstenedione, dehydroepiandrosterone sulphate, testosterone, estradiol, cortisol, aldosterone, metanephrines, thyroglobulin and insulin-like-growth factor-1) were described considering analytical characteristics but also some aspects of pre-analytical and post- analytical steps...
October 27, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/29061472/quantification-of-steroid-hormones-in-human-serum-by-liquid-chromatography-high-resolution-tandem-mass-spectrometry
#16
Silke Matysik, Gerhard Liebisch
A limited specificity is inherent to immunoassays for steroid hormone analysis. To improve selectivity mass spectrometric analysis of steroid hormones by liquid chromatography-tandem mass spectrometry (LC-MS/MS) has been introduced in the clinical laboratory over the past years usually with low mass resolution triple-quadrupole instruments or more recently by high resolution mass spectrometry (HR-MS). Here we introduce liquid chromatography-high resolution tandem mass spectrometry (LC-MS/HR-MS) to further increase selectivity of steroid hormone quantification...
December 1, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29056745/sex-hormone-metabolism-and-threatened-abortion
#17
Qianhua Xu, Juan Chen, Zhaolian Wei, Theodore R Brandon, David T Zava, Yuenian Eric Shi, Yunxia Cao
BACKGROUND The aim of this study was to evaluate changes in sex hormone metabolism in patients with threatened miscarriage. MATERIAL AND METHODS We recruited 73 women in early pregnancy (6-8 weeks of gestation) and divided them into the following 2 groups based on whether they had vaginal bleeding: group A (n=34), the threatened abortion group; and group B (n=39), the normal pregnancy group. Human chorionic gonadotrophin (hCG), estradiol (E2), progesterone (P4), and testosterone (T) serum levels were tested and sex hormone metabolites in the urine were detected using gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS)...
October 23, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29055783/prenatal-organochlorine-pesticide-exposure-and-the-disruption-of-steroids-and-reproductive-hormones-in-cord-blood-the-hokkaido-study
#18
Atsuko Araki, Chihiro Miyashita, Takahiko Mitsui, Houman Goudarzi, Futoshi Mizutani, Youichi Chisaki, Sachiko Itoh, Seiko Sasaki, Kazutoshi Cho, Kimihiko Moriya, Nobuo Shinohara, Katsuya Nonomura, Reiko Kishi
Certain organochlorine pesticides (OCPs) are designated as persistent organic pollutants and are regulated in many countries. The effects of OCPs on pediatric endocrinology are a concern; however, only limited data exist from human studies on maternal OCP exposure and its effects on infants' hormone levels. This study was conducted as part of the Hokkaido Study Sapporo Cohort, a prospective birth cohort study in Japan. Participants included 514 women who enrolled at 23-35weeks of gestation between 2002 and 2005; maternal blood samples were collected in late pregnancy, and 29 OCPs were measured...
January 2018: Environment International
https://www.readbyqxmd.com/read/29044433/pregnancy-induced-changes-in-metabolome-and-proteome-in-ovine-uterine-flushings
#19
Jared J Romero, Bethany E Liebig, Corey D Broeckling, Jessica E Prenni, Thomas R Hansen
Mass spectrometry (MS) approaches were used herein to identify metabolites and proteins in uterine flushings (UF) that may contribute to nourishing the conceptus. Ovine uteri collected on Day 12 of the estrous cycle (n = 5 ewes exposed to vasectomized ram) or Days 12 (n = 4), 14 (n = 5), or 16 (n = 5) of pregnancy (bred with fertile ram) were flushed using buffered saline. Metabolites were extracted using 80% methanol and profiled using ultraperformance liquid chromatography (LC) tandem mass spectrometry. The proteome was examined by digestion with trypsin, followed by the analysis of peptides with LC-MS/MS...
August 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29043702/n-acetylcysteine-compared-to-metformin-improves-the-expression-profile-of-growth-differentiation-factor-9-and-receptor-tyrosine-kinase-c-kit-in-the-oocytes-of-patients-with-polycystic-ovarian-syndrome
#20
Ebrahim Cheraghi, Malek Soleimani Mehranjani, Seyed Mohammad Ali Shariatzadeh, Mohammad Hossein Nasr Esfahani, Behrang Alani
Background: Paracrine disruption of growth factors in women with polycystic ovarian syndrome (PCOS) results in production of low quality oocyte, especially following ovulation induction. The aim of this study was to investigate the effects of metformin (MET), N-acetylcysteine (NAC) and their combination on the hormonal levels and expression profile of GDF-9, BMP-15 and c-kit, as hallmarks of oocyte quality, in PCOS patients. MATERIALS AND METHODS: This prospective randomized, double-blind, placebo controlled trial aims to study the effects of MET, NAC and their combination (MET+NAC) on expression of GDF-9, BMP-15 and c-kit mRNA in oocytes [10 at the germinal vesicle (GV) stage, 10 at the MI stage, and 10 at the MII stage from per group] derived following ovulation induction in PCOS...
January 2018: International Journal of Fertility & Sterility
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