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Testosterone for women

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https://www.readbyqxmd.com/read/28811112/exogenous-testosterone-affects-early-threat-processing-in-socially-anxious-and-healthy-women
#1
Jacobien M van Peer, Dorien Enter, Henk van Steenbergen, Philip Spinhoven, Karin Roelofs
Testosterone plays an important role in social threat processing. Recent evidence suggests that testosterone administration has socially anxiolytic effects, but it remains unknown whether this involves early vigilance or later, more sustained, processing-stages. We investigated the acute effects of testosterone administration on social threat processing in 19 female patients with Social Anxiety Disorder (SAD) and 19 healthy controls. Event-related potentials (ERPs) were recorded during an emotional Stroop task with subliminally presented faces...
August 12, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28795765/vitamin-d-predictors-in-polycystic-ovary-syndrome-a-meta-analysis
#2
Flora Bacopoulou, Evangelia Kolias, Vasiliki Efthymiou, Constantine N Antonopoulos, Evangelia Charmandari
BACKGROUND: The aim of this meta-analysis was to examine differences and predictors of serum 25-hydroxyvitamin D concentrations in women with polycystic ovary syndrome (PCOS) compared with non-PCOS controls matched for body mass index. MATERIALS AND METHODS: Three databases were searched (2003-2015) to retrieve studies that evaluated serum 25-hydroxyvitamin D in PCOS women and controls. Meta-regression analysis was performed with anthropometric and metabolic/endocrine parameters as covariates...
August 10, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28791495/joint-relative-risks-for-estrogen-receptor-positive-breast-cancer-from-a-clinical-model-polygenic-risk-score-and-sex-hormones
#3
Yiwey Shieh, Donglei Hu, Lin Ma, Scott Huntsman, Charlotte C Gard, Jessica W T Leung, Jeffrey A Tice, Elad Ziv, Karla Kerlikowske, Steven R Cummings
BACKGROUND: Models that predict the risk of estrogen receptor (ER)-positive breast cancers may improve our ability to target chemoprevention. We investigated the contributions of sex hormones to the discrimination of the Breast Cancer Surveillance Consortium (BCSC) risk model and a polygenic risk score comprised of 83 single nucleotide polymorphisms. METHODS: We conducted a nested case-control study of 110 women with ER-positive breast cancers and 214 matched controls within a mammography screening cohort...
August 8, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28789693/a-novel-method-to-demonstrate-that-pregnant-women-with-polycystic-ovary-syndrome-hyper-expose-their-fetus-to-androgens-as-a-possible-stepping-stone-for-the-developmental-theory-of-pcos-a-pilot-study
#4
Roy Homburg, Anil Gudi, Amit Shah, Alison M Layton
BACKGROUND: Polycystic ovary syndrome (PCOS), whose aetiology is unknown, is predominately a familial syndrome but confirmation of candidate genes has proved elusive. The developmental hypothesis for the origin of PCOS suggests that exposure of the fetus to excess androgens influences imprinting, leading to altered genetic expression in adult life. The aim of this pilot study was to examine whether the female fetus of a mother with PCOS is indeed exposed to excess androgens. METHODS: Using sebum production in the newborn as a surrogate for exposure to excess androgens during pregnancy thisprospective case control studyexamined whether neonatal sebum excretion is greater in female infants born to PCOS mothers compared to non-PCOS...
August 8, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28770330/metformin-therapy-for-the-reproductive-and-metabolic-consequences-of-polycystic-ovary-syndrome
#5
EDITORIAL
Susan Sam, David A Ehrmann
Polycystic ovary syndrome (PCOS), the most common hormonal disorder among women of reproductive age, has various metabolic and reproductive consequences. Metformin was originally shown to lower testosterone levels in women with PCOS in the 1990s, an effect presumably related to its insulin sensitising actions. However, the precise mechanisms of metformin action in PCOS remain unclear and there is considerable heterogeneity in the clinical response to this therapy in women with PCOS. Recent evidence indicates that genetic factors may play a significant role in predicting response to metformin therapy in PCOS and future studies are needed to further identify women who are most likely to benefit from this therapy...
August 3, 2017: Diabetologia
https://www.readbyqxmd.com/read/28763402/understanding-the-complex-relationships-underlying-hot-flashes-a-bayesian-network-approach
#6
Rebecca L Smith, Lisa M Gallicchio, Jodi A Flaws
OBJECTIVE: The mechanism underlying hot flashes is not well-understood, primarily because of complex relationships between and among hot flashes and their risk factors. METHODS: We explored those relationships using a Bayesian network approach based on a 2006 to 2015 cohort study of hot flashes among 776 female residents, 45 to 54 years old, in the Baltimore area. Bayesian networks were fit for each outcome (current hot flashes, hot flashes before the end of the study, hot flash severity, hot flash frequency, and age at first hot flashes) separately and together with a list of risk factors (estrogen, progesterone, testosterone, body mass index and obesity, race, income level, education level, smoking history, drinking history, and activity level)...
July 31, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28761656/androstenedione-and-testosterone-levels-correlate-with-in-vitro-fertilization-rates-in-insulin-resistant-women
#7
Thozhukat Sathyapalan, Emily H Dickerson, Stephen M Maguiness, John Robinson, Youssra H Z Dakroury, Stephen L Atkin
BACKGROUND: The free androgen index (FAI) calculated using total testosterone measured by immunoassay does not correlate with oocyte fertilization rates; however, there is considerable cross-reactivity for testosterone with other androgens by immunoassay that is not found using isotope dilution liquid chromatography-tandem mass spectrometry (LC/MS/MS). AIMS: This study was done to determine relationship between total testosterone and androstenedione measured by LC/MS/MS and fertilization rates...
2017: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/28752719/serum-estradiol-concentration-estradiol-to-progesterone-ratio-and-sputum-il-5-and-il-8-concentrations-are-increased-in-luteal-phase-of-the-menstrual-cycle-in-perimenstrual-asthma-patients
#8
A Semik-Orzech, S Skoczyński, W Pierzchała
Background. The results of the research on perimenstrual asthma (PMA) pathophysiology are inconsistent, and the role of sex hormones remains inconclusive. The aim of the study was to evaluate the influence of serum sex steroid (and other) hormones concentrations on lower airway inflammation of PMA patients. Methods. Thirty-three women of childbearing age diagnosed as: PMA (n = 13), non-PMA asthmatics (n = 10), and healthy controls (n = 10) were prospectively followed for 12 weeks over 2 consecutive menstrual cycles...
July 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28750061/endocrine-and-aggressive-responses-to-competition-are-moderated-by-contest-outcome-gender-individual-versus-team-competition-and-implicit-motives
#9
Jon K Oxford, Johanna M Tiedtke, Anna Ossmann, Dominik Özbe, Oliver C Schultheiss
This study examined hormonal responses to competition in relation to gender, social context, and implicit motives. Participants (N = 326) were randomly assigned to win or lose in a 10-round, virtual face-to-face competition, in same-sex individual- and team-competition contexts. Saliva samples, taken before and twice after the competition, were assayed for testosterone (T), estradiol (E), progesterone (P), and cortisol (C). Implicit needs for power (nPower) and affiliation (nAffiliation) were assessed with a picture-story exercise before the competition...
2017: PloS One
https://www.readbyqxmd.com/read/28744698/association-of-basal-serum-androgen-levels-with-ovarian-response-and-icsi-cycle-outcome
#10
C Abide Yayla, E Ozkaya, S Kayatas Eser, I Sanverdi, B Devranoglu, T Kutlu
BACKGROUND: The purpose of this study was to assess the predictive value of basal serum testosterone (T) and dehydroepiandrosterone sulfate (DHEAS) levels during follicular phase for ovarian response and outcome in intracytoplasmic sperm injection (ICSI) cycles of women with diminished ovarian reserve. METHODS: We prospectively gathered data of basal serum androgen levels and ICSI cycle characteristics of 120 women with diminished ovarian reserve. Association of basal serum T and DHEAS levels with ovarian response was analyzed...
July 25, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28743530/different-inhibitory-potential-of-sex-hormones-on-nnk-detoxification-in%C3%A2-vitro-a-possible-explanation-for-gender-specific-lung-cancer-risk
#11
Claudia Stapelfeld, Karolina-Theresa Neumann, Edmund Maser
Smoking women are probably at a higher risk to develop lung cancer than men. Different explanations exist for these findings, a gender-specific impairment of tobacco carcinogen metabolism being one of them. In this study, we examined the inhibition of NNK reduction to NNAL, the first and most important detoxication step of this tobacco-specific carcinogen. It is mediated by different carbonyl reductases of the SDR (CBR1 and 11βHSD1) and AKR (AKR1B10, AKR1C1, AKR1C2 and AKR1C4) superfamilies. Inhibition constants of NNK reduction were determined with male (testosterone) and female (estradiol, progesterone) sex hormones and the contraceptives ethinylestradiol and drospirenone in A549 cells and with purified enzymes...
July 22, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28739331/associations-of-sex-hormones-and-anthropometry-with-the-speaking-voice-profile-in-the-adult-general-population
#12
Lasse Jost, Michael Fuchs, Markus Loeffler, Joachim Thiery, Juergen Kratzsch, Thomas Berger, Christoph Engel
OBJECTIVE: There is evidence that sexual hormone concentrations and anthropometric factors influence the human voice. The goal of this study was to investigate to what extent body mass index (BMI), body height, body weight, breast-to-abdomen-ratio, testosterone, estradiol, dehydroepiandrosterone-sulfate (DHEA-S), follicle-stimulating hormone, and luteinizing hormone are associated with the sound pressure level and the fundamental frequency of the speaking voice in a cross-sectional approach among adults in the general population...
July 21, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28730692/self-perception-of-voice-in-transgender-persons-during-cross-sex-hormone-therapy
#13
Charlotte Bultynck, Charlotte Pas, Justine Defreyne, Marjan Cosyns, Martin den Heijer, Guy T'Sjoen
OBJECTIVE: Self-perception of voice has a significant psychosocial impact on transgender persons. Research about the evolution of self-perception of voice during cross-sex hormone therapy (CSHT) is lacking. The aim of this study was to examine if self-perception of voice changes during CSHT, and if a change of serum testosterone levels as a result of CSHT can predict a change of self-perception of voice. STUDY DESIGN: Prospective longitudinal study. METHODS: The Transsexual Voice Questionnaire (TVQ), consisting of three factors-anxiety and avoidance (AA), gender identity (GI), and voice quality (VQ)-was used...
July 21, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28724741/body-height-and-immune-efficacy-testing-body-stature-as-a-signal-of-biological-quality
#14
Bogusław Pawłowski, Judyta Nowak, Barbara Borkowska, Daria Augustyniak, Zuzanna Drulis-Kawa
According to the good genes hypothesis and energy allocation theory, human adult body height may reflect biological quality. An important aspect of this quality is immune system functioning (ISF). The aim of this study was to evaluate the relationship between ISF and body height in healthy people. The ISF was determined by several important innate (total complement and lysozyme activity, neutrophil function) and adaptive immune parameters (lymphocytes, IgA and IgG, and response to the flu vaccine). Overall, 96 males and 97 females were subjected to flu vaccination, and of these, 35 males and 34 females were subjected to tetanus...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28723965/the-prevalence-and-metabolic-characteristics-of-polycystic-ovary-syndrome-in-the-qatari-population
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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