keyword
MENU ▼
Read by QxMD icon Read
search

Testosterone AND DHEA

keyword
https://www.readbyqxmd.com/read/28413941/psychobiological-protective-factors-modifying-the-association-between-age-and-sexual-health-in-men-findings-from-the-men-s-health-40-study
#1
Andreas Walther, Fiona Mahler, Rudolf Debelak, Ulrike Ehlert
Sexual health severely decreases with age. For males older than 40 years, erectile dysfunction (ED) is the most common sexual disorder. Although physical and psychological risk factors for ED have been identified, protective factors are yet to be determined. To date, no study has examined endocrine and psychosocial factors in parallel with regard to their modifying effect on the age-related increase in ED. Two hundred and seventy-one self-reporting healthy men aged between 40 and 75 years provided both psychometric data on sexual function and a set of potential psychosocial protective factors, and saliva samples for the analysis of steroid hormones and proinflammatory cytokines...
May 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/28407517/social-status-strategy-in-early-adolescent-girls-testosterone-and-value-based-decision-making
#2
Stephanie L Cardoos, Ahna Ballonoff Suleiman, Megan Johnson, Wouter van den Bos, Stephen P Hinshaw, Ronald E Dahl
There has been strong interest, spanning several disciplines, in understanding adolescence as a developmental period of increased risk-taking behavior. Our goals focus on one line of investigation within this larger developmental risk framework. Specifically, we examined levels of pubertal hormones in girls in relation to their willingness to take greater financial risks to gain social status. To this end, we tested the hypothesis that higher levels of testosterone during the ages of pubertal maturation are associated with a greater willingness to sacrifice money for social admiration...
March 31, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28401652/the-role-of-dehydroepiandrosterone-on-functional-innate-immune-responses-to-acute-stress
#3
Sean P Prall, Emilee E Larson, Michael P Muehlenbein
The androgen dehydroepiandrosterone (DHEA) responds to stress activation, exhibits anti-glucocorticoid properties, and modulates immunity in diverse ways, yet little is known of its role in acute stress responses. In this study, the effects of DHEA and its sulfate ester DHEA-S on human male immune function during exposure to an acute stressor is explored. Variation in DHEA, DHEA-S, testosterone, and cortisol, along with bacterial killing assays, was measured in response to a modified Trier Social Stress test in 27 young adult males...
April 11, 2017: Stress and Health: Journal of the International Society for the Investigation of Stress
https://www.readbyqxmd.com/read/28389510/association-of-tissue-abiraterone-levels-and-slco-genotype-with-intraprostatic-steroids-and-pathologic-response-in-men-with-high-risk-localized-prostate-cancer
#4
Elahe A Mostaghel, Eunpi Cho, Ailin Zhang, Mohammad Alyamani, Arja Kaipainen, Sean Green, Brett Marck, Nima Sharifi, Jonathan L Wright, Roman Gulati, Lawrence D True, Massimo Loda, Alvin M Matsumoto, Daniel Tamae, Trevor N Penning, Steven P Balk, Philip W Kantoff, Peter S Nelson, Mary-Ellen Taplin, Bruce Montgomery
Germline variation in solute carrier organic anion (SLCO) genes influences cellular steroid uptake and is associated with prostate cancer (PCa) outcomes. We hypothesized that, due to its steroidal structure, the CYP17A inhibitor abiraterone may undergo SLCO-mediated transport and that SLCO gene variation may influence intracellular abiraterone levels and outcomes.<br /><br />Experimental Design: Steroid and abiraterone levels were measured by mass spectrometry in serum and tissue from 58 men with localized PCa in a clinical trial of LHRH agonist plus abiraterone acetate plus prednisone for 24 weeks prior to prostatectomy...
April 7, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28381542/androgens-are-differentially-associated-with-ovarian-cancer-subtypes-in-the-ovarian-cancer-cohort-consortium
#5
Jennifer Ose, Elizabeth M Poole, Helena Schock, Matti Lehtinen, Alan A Arslan, Anne Zeleniuch-Jacquotte, Kala Visvanathan, Kathy J Helzlsouer, Julie E Buring, I-Min Lee, Anne Tjønneland, Laure Dossus, Antonia Trichopoulou, Giovanna Masala, N Charlotte Onland-Moret, Elisabete Weiderpass, Eric J Duell, Annika Idahl, Ruth C Travis, Sabina Rinaldi, Melissa A Merritt, Britton Trabert, Nicolas Wentzensen, Shelley S Tworoger, Rudolf Kaaks, Renée T Fortner
Invasive epithelial ovarian cancer (EOC) is the most lethal gynecologic malignancy. The etiology of EOC remains elusive; however, experimental and epidemiologic data suggest a role for hormone-related exposures in ovarian carcinogenesis and risk factor differences by histologic phenotypes and developmental pathways. Research on pre-diagnosis androgen concentrations and EOC risk has yielded inconclusive results, and analyses incorporating EOC subtypes are sparse. We conducted a pooled analysis of 7 nested case-control studies in the Ovarian Cancer Cohort Consortium to investigate the association between pre-diagnosis circulating androgens (testosterone, free testosterone, androstenedione, dehydroepiandrosterone sulfate (DHEAS)), sex hormone binding globulin (SHBG), and EOC risk by tumor characteristics (i...
April 5, 2017: Cancer Research
https://www.readbyqxmd.com/read/28378209/bariatric-surgery-reduces-serum-anti-mullerian-hormone-levels-in-obese-women-with-and-without-polycystic-ovarian-syndrome
#6
Francesco Chiofalo, Cristina Ciuoli, Caterina Formichi, Federico Selmi, Raffaella Forleo, Ornella Neri, Giuseppe Vuolo, Patrizia Paffetti, Furio Pacini
PURPOSE: Obesity in fertile women has negative effect on fertility. Anti-mullerian hormone (AMH) represents a good index of fertility, and it is considered a marker of ovarian reserve and of polycystic ovarian syndrome (PCOS) gravity. Previous studies evaluated the relationship between obesity and AMH with contradictory results. The aim of the study was to investigate the relationship between obesity and AMH and the changes of AMH in obese women in reproductive age submitted to bariatric surgery...
April 5, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28376482/discordant-genotypic-sex-and-phenotype-variations-in-two-spanish-siblings-with-17%C3%AE-hydroxylase-17-20-lyase-deficiency-carrying-the-most-prevalent-mutated-cyp17a1-alleles-of-brazilian-patients
#7
Mónica Fernández-Cancio, Emilio García-García, Carmen González-Cejudo, María-Angeles Martínez-Maestre, Miguel-Angel Mangas-Cruz, Gil Guerra-Junior, Maricilda Pandi de Mello, Ivo J P Arnhold, Mirian Y Nishi, Berenice Bilharinho Mendonça, Elena García-Arumí, Laura Audí, Eduardo Tizzano, Antonio Carrascosa
17α-hydroxylase/17,20-lyase deficiency is a rare form of congenital adrenal hyperplasia caused by mutations in CYP17A1. Two phenotypic female sisters, aged 17 and 15 years and with 46,XY and 46,XX karyotypes, respectively, presented with primary amenorrhea and absent secondary sexual characteristics. The elder sib also presented with high blood pressure. Both patients had elevated levels of ACTH, gonadotropins, progesterone, corticosterone, and deoxycorticosterone, and reduced levels of estradiol, testosterone, androstenedione, 17-OH-P, DHEA-S, cortisol, aldosterone, and renin activity...
April 4, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28373267/longitudinal-analyses-of-the-steroid-metabolome-in-obese-pcos-girls-with-weight-loss
#8
Thomas Reinehr, Alexandra Kulle, Juliane Rothermel, Caroline Knop, Nina Lass, Christina Bosse, Paul-Martin Holterhus
OBJECTIVE: The underlying mechanisms of polycystic ovarian syndrome (PCOS) are not fully understood yet. The aim of the study was to get functional insights into the regulation of steroid hormones in PCOS by steroid metabolomics. DESIGN: This is a longitudinal study of changes of steroid hormones in 40 obese girls aged 13-16 years (50% with PCOS) participating in a 1-year lifestyle intervention. Girls with and without PCOS were matched to age, BMI, and change of weight status...
April 3, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28373106/umbilical-cord-blood-androgen-levels-in-girls-and-boys-assessed-by-gas-chromatography-tandem-mass-spectrometry
#9
Anna-Carin Lundell, Henrik Ryberg, Liesbeth Vandenput, Anna Rudin, Claes Ohlsson, Åsa Tivesten
Androgen exposure of the fetus during gestation plays an important role in human physiology and pathophysiology, but assessment of androgens, in particular dihydrotestosterone (DHT), in human umbilical cord blood is technically challenging. The aim of this study was to assess umbilical cord androgen levels, including DHT, at birth by a highly sensitive assay, and study their association with sex of the infant, sex-hormone-binding globulin (SHBG) levels, and gestational age at delivery. Swedish infants (27 girls, 26 boys) were recruited at maternity care clinics in Southern Sweden...
March 31, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28359034/effect-of-androgen-supplementation-on-24-hour-activity-rest-patterns-of-aged-male-rhesus-macaques
#10
Henryk F Urbanski
Like elderly men, old male rhesus macaques show attenuated circulating levels of testosterone and dehydroepiandrosterone sulfate, and many of them also show reduced levels of daytime activity. It is unclear, however, if this age-associated behavioral change is causally related to the underlying decrease in circulating androgen levels. To test this possibility, old male rhesus macaques were given daily supplements of testosterone and DHEA for 6 months, designed to mimic the mean 24-hour circulating hormone patterns of young adults...
June 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28326352/aging-lifestyle-factors-hormones-and-bone-health-in-singaporean-men
#11
Victor Hng Hang Goh, William George Hart
PURPOSE: The present study examined how age, bodyweight, body fat, regular exercise and some endocrine factors are associated with osteoporosis, spine bone mineral density (Sbmd) and femoral neck bone mineral density (Fnbmd) in Singaporean men. METHODS: Body composition and bone scans of lumbar spine at L2-L4 and hip were carried out with duel-energy X-ray absorptiometry (DXA). Anthropometric parameters were measured and demographic data, medical history and exercise schedule were collected via a questionnaire...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28323951/assessing-energy-requirements-in-women-with-polycystic-ovary-syndrome-a-comparison-against-doubly-labeled-water
#12
Nicholas T Broskey, Monica C Klempel, L Anne Gilmore, Elizabeth F Sutton, Abby D Altazan, Jeffrey H Burton, Eric Ravussin, Leanne M Redman
Context: Weight loss is prescribed to offset the deleterious consequences of polycystic ovary syndrome (PCOS), but a successful intervention requires an accurate assessment of energy requirements. Objective: Describe energy requirements in women with PCOS and evaluate common prediction equations compared to doubly-labeled water (DLW). Design: Cross-sectional study. Setting: Academic research center. Participants: Twenty-eight weight-stable women with PCOS completed a 14-day DLW study along with measures of body composition, resting metabolic rate, and physical activity assessment by accelerometry...
March 8, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28300464/serum-visfatin-vascular-endothelial-growth-factor-and-matrix-metalloproteinase-9-in-women-with-polycystic-ovary-syndrome
#13
Kalliopi Dambala, Dimitrios Vavilis, Eleni Bili, Dimitrios G Goulis, Basil C Tarlatzis
AIM: To evaluate serum concentrations of visfatin, vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9) in women with polycystic ovary syndrome (PCOS) and to investigate their possible role as early endothelial markers in PCOS. METHODS: Forty-two women with PCOS and 42 controls, matched for age and weight, were included in the study. Serum concentrations of follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin, total testosterone (tT), Δ4-androstenedione (Δ4A), dehydroepinadrosterone sulphate (DHEA-S), 17-OH-progesterone, sex hormone-binding protein (SHBG), thyroid-stimulating hormone (TSH), free thyroxine (fT4), visfatin, VEGF and MMP-9 were measured in all women; free androgen index (FAI) was calculated as well...
March 16, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28276724/circulating-androgens-and-shbg-during-the-normal-menstrual-cycle-in-two-ethnic-populations
#14
Taraneh Rezaii, Thomas P Gustafsson, Magnus Axelson, Leyla Zamani, Malin Ernberg, Angelica L Hirschberg, Kjell A M Carlström
The objective of this study was to study possible ethnic differences in steroid hormones and sex hormone-binding globulin (SHBG) during the menstrual cycle. Serum levels of the ovarian steroids estradiol (E2) and progesterone (P) and of follicle-stimulating hormone (FSH), luteinizing hormone (LH), SHBG, dehydroepiandrosterone (DHEA) and testosterone (T-ria) were all measured by immunoassay during the menstrual cycle in 15 Swedish and 11 West Asian regularly menstruating women. Testosterone (T-ms) was also measured by LC-MS/MS and so were 4-androstene-3,17-dione (A-4) and 17-alpha-hydroxyprogesterone (17-OHP)...
May 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28263736/isotope-dilution-turboflow-lc-ms-ms-method-for-simultaneous-quantification-of-ten-steroid-metabolites-in-serum
#15
Tue Søeborg, Hanne Frederiksen, Trine Holm Johannsen, Anna-Maria Andersson, Anders Juul
An isotope-dilution TurboFlow-LC-MS/MS method for simultaneous quantification of the ten steroid metabolites dehydroepiandrosterone sulfate (DHEAS), progesterone, 17α-hydroxyprogesterone (17-OHP), Δ4-androstenedione (Adione), corticosterone, 11-deoxycortisol, cortisol, cortisone, testosterone (T), and estrone 3-sulfate (E1-S) in serum was developed and validated. Limits of quantification, variability (inter- and intra-day), analytical range and linearity were all found to be acceptable for clinical use. Furthermore, sample stability was evaluated including the influence of freeze-thaw cycles and the effects of temperature and storage time...
March 2, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28249239/simultaneous-quantification-of-estrogens-their-precursors-and-conjugated-metabolites-in-human-breast-cancer-cells-by-lc-hrms-without-derivatization
#16
Stefan Poschner, Martin Zehl, Alexandra Maier-Salamon, Walter Jäger
Liquid chromatography-mass spectrometry (LC-MS) is the state of the art technique for quantification of steroid hormones. Currently used methods are typically limited by the need of pre-column derivatization to increase ionization efficiency; however, this causes hydrolysis of conjugated metabolites. Our newly established LC-HRMS method is able to simultaneously quantify conjugated and unconjugated steroids without prior derivatization using deuterated internal standards and solid-phase extraction. This assay was validated according to ICH Q2(R1) guidelines for the analysis of the 10 main steroids of the estrogenic pathway, namely 4-androstene-3,17-dione, dehydroepiandrosterone (DHEA), DHEA-3-sulfate, estrone, 17β-estradiol, estriol (16α-OH-17β-estradiol), estrone-3-sulfate, 17β-estradiol-3-(β-d-glucuronide), 17β-estradiol-3-sulfate and testosterone...
February 22, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28246310/hyperandrogenemia-and-high-prolactin-in-congenital-utero-vaginal-aplasia-patients
#17
Patricia G Oppelt, Andreas Mueller, Liana Stephan, Ralf Dittrich, Johannes Lermann, Christian Büttner, Arif B Ekici, Gabi Conzelmann, Harald Seeger, Dorit Schöller, Katharina Rall, Matthias Wilhelm Beckmann, Pamela Lynn Strissel, Sara Brucker, Reiner Strick
Patients with the Mayer-Rokitansky-Küster-Hauser syndrome (MRKH) have a congenital utero-vaginal-cervical aplasia, but normal or hypoplastic adnexa and develop with normal female phenotype. Although reports mostly demonstrated regular steroid hormone levels in small MRKH cohorts, single MRKH patients with hyperandrogenemia and clinical presentation, like hirsutism and acne has also been shown. Genetically a correlation of WNT4 mutations with singular MRKH patients and hyperandrogenemia was noted. This present study analyzed the hormone status of 215 MRKH patients by determining the levels of luteinizing hormone (LH), follicle stimulating hormone (FSH), estradiol, 17-OH progesterone, testosterone, dehydroepiandrosterone sulfate (DHEAS), sex hormone-binding globulin (SHBG) and prolactin in order to determine the incidence of hyperandrogenemia and hyperprolactinemia in MRKH patients...
February 28, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28245188/amh-levels-in-girls-with-various-pubertal-problems
#18
Senay Savas-Erdeve, Elif Sagsak, Meliksah Keskin, Semra Cetinkaya, Zehra Aycan
BACKGROUND: Anti-Müllerian hormone (AMH) is produced by granulosa cells surrounding follicles that have undergone recruitment from the primordial follicle pool but have not been selected for dominance (preantral and early antral follicles). In healthy girls, serum levels of AMH vary considerably between individuals. We aimed to evaluate the AMH level in girls with premature thelarche (PT) and central precocious puberty (CPP). METHODS: Girls with CPP (n=21), PT (n=24) and a control prepubertal group (n=22) were included in the study...
March 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28229578/growth-and-pubertal-development-in-adolescent-male-wrestlers
#19
İbrahim E Pişkin, Mustafa Gümüş, Taner Bayraktaroğlu, Tevfik C Akalin, Faruk Yamaner
BACKGROUND: Adolescence is a crucial period for linear growth, and sports training during this time may have positive or negative effects on some physiological processes as growth. The purpose of this study was to evaluate the effects of intense training during somatic growth on the onset of puberty and growth development in adolescent wrestlers. METHODS: Fifty adolescent male wrestlers and twenty-one sedentary healthy male controls aged between 13-15 years were selected...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28228318/endocrine-and-cardiometabolic-cord-blood-characteristics-of-offspring-born-to-mothers-with-and-without-polycystic-ovary-syndrome
#20
Nadine M P Daan, Maria P H Koster, Regine P Steegers-Theunissen, Marinus J C Eijkemans, B C J M Fauser
OBJECTIVE: To compare the endocrine and cardiometabolic cord blood characteristics of offspring of mothers with polycystic ovary syndrome (PCOS) with those of healthy controls. DESIGN: Cross-sectional case control study. SETTING: University medical centers. PATIENT(S): Offspring from mothers with PCOS (n = 61) and healthy controls (n = 82). INTERVENTION(S): Cord blood withdrawal from neonates. MAIN OUTCOME MEASURE(S): Cord blood estradiol, androstenedione, dehydroepiandrosterone sulfate (DHEAS), testosterone, sex hormone-binding globulin, free androgen index (FAI), insulin, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, c-reactive protein, adiponectin, and leptin...
January 2017: Fertility and Sterility
keyword
keyword
110558
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"