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Reproductive endocrinology

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https://www.readbyqxmd.com/read/28429778/reproductive-endocrinology-potential-new-therapy-for-hot-flushes
#1
Claire Greenhill
No abstract text is available yet for this article.
April 21, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/28390569/infertility-prevention-and-management
#2
REVIEW
Emily C Somers, Wendy Marder
Infertility and subfertility, menstrual irregularities, and decreased parity may occur in women with autoimmune diseases due to multiple factors, including underlying inflammatory disease, gonadotoxic medications, and psychosocial issues related to living with chronic disease. Awareness of these factors, as well as validation and support of patients confronting reproductive challenges, is important for providing comprehensive care to these women. An understanding of the expanding options for fertility preservation strategies during gonadotoxic medications is essential...
May 2017: Rheumatic Diseases Clinics of North America
https://www.readbyqxmd.com/read/28379417/subcutaneous-injection-of-testosterone-is-an-effective-and-preferred-alternative-to-intramuscular-injection-demonstration-in-female-to-male-transgender-patients
#3
Daniel I Spratt, India Stewart, Clara Savage, Wendy Craig, Norman P Spack, Donald Walt Chandler, Lindsey V Spratt, Toni Eimicke, Jerrold S Olshan
Context: Testosterone is commonly administered intramuscularly (IM) to treat hypogonadal males and female-to-male transgender (FTM) patients. However, these injections can involve significant discomfort and may require arrangements for administration by others. Objective: We assessed whether T could be administered effectively and safely by the subcutaneously (SC) as an alternative to IM injections. Design: Retrospective cohort study. Setting: Outpatient Reproductive Endocrinology Clinic at an academic medical center...
April 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28368518/functional-hypothalamic-amenorrhea-an-endocrine-society-clinical-practice-guideline
#4
Catherine M Gordon, Kathryn E Ackerman, Sarah L Berga, Jay R Kaplan, George Mastorakos, Madhusmita Misra, M Hassan Murad, Nanette F Santoro, Michelle P Warren
Cosponsoring Associations: The American Society for Reproductive Medicine, the European Society of Endocrinology, and the Pediatric Endocrine Society. This guideline was funded by the Endocrine Society. Objective: To formulate clinical practice guidelines for the diagnosis and treatment of functional hypothalamic amenorrhea (FHA). Participants: The participants include an Endocrine Society-appointed task force of eight experts, a methodologist, and a medical writer...
March 22, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28367299/low-dose-urinary-human-chorionic-gonadotropin-is-effective-for-oocyte-maturation-in-in-vitro-fertilization-intracytoplasmic-sperm-injection-cycles-independent-of-body-mass-index
#5
Luis R Hoyos, Sana Khan, Jing Dai, Manvinder Singh, Michael P Diamond, Elizabeth E Puscheck, Awoniyi O Awonuga
BACKGROUND: Currently, there is no agreement on the optimal urinary derived human chorionic gonadotropin (u-hCG) dose requirement for initiating final oocyte maturation prior to oocyte collection in in vitro fertilization (IVF), but doses that range from 2500- 15000 IU have been used. We intended to determine whether low dose u-hCG was effective for oocyte maturation in IVF/intracytoplasmic sperm injection (ICSI) cycles independent of body mass index (BMI). MATERIALS AND METHODS: We retrospectively evaluated a cohort of 295 women who underwent their first IVF/ICSI cycles between January 2003 and December 2010 at the Division of Reproductive Endocrinology and Infertility, Wayne State University, Detroit, MI, USA...
April 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28345754/second-to-fourth-digit-ratio-2d-4d-is-unrelated-to-measures-of-somatic-reproductive-effort-among-young-men-from-cebu-the-philippines
#6
Alexander V Georgiev, Calen P Ryan, Lee T Gettler, Thomas W McDade, Christopher W Kuzawa
OBJECTIVES: A low second-to-fourth (2D:4D) digit ratio, a retrospective marker of high prenatal androgens, predicts increased investment in costly sexually dimorphic traits in men in some studies, although results are mixed. Here we test the hypothesis that the association of low 2D:4D ratios with increased muscularity and decreased adiposity depends on current testosterone (T) levels, such that digit ratio will be a particularly strong predictor of outcomes among men exhibiting a mating-effort-oriented endocrinological profile (high T)...
March 27, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28342856/reproductive-endocrinology-of-vitamin-d
#7
Mette Lorenzen, Ida Marie Boisen, Li Juel Mortensen, Beate Lanske, Anders Juul, Martin Blomberg Jensen
Vitamin D is a versatile hormone with several functions beyond its well-established role in maintenance of skeletal health and calcium homeostasis. The effects of vitamin D are mediated by the vitamin D receptor, which is expressed together with the vitamin D metabolizing enzymes in the reproductive tissues. The reproductive organs are therefore responsive to and able to metabolize vitamin D locally. The exact role remains to be clarified but several studies have suggested a link between vitamin D and production/release of reproductive hormones into circulation, which will be the main focus of this review...
March 22, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28326513/manual-vs-computer-assisted-sperm-analysis-can-casa-replace-manual-assessment-of-human-semen-in-clinical-practice
#8
Joanna Talarczyk-Desole, Anna Berger, Grażyna Taszarek-Hauke, Jan Hauke, Leszek Pawelczyk, Piotr Jedrzejczak
OBJECTIVES: The aim of the study was to check the quality of computer-assisted sperm analysis (CASA) system in comparison to the reference manual method as well as standardization of the computer-assisted semen assessment. MATERIAL AND METHODS: The study was conducted between January and June 2015 at the Andrology Laboratory of the Division of Infertility and Reproductive Endocrinology, Poznań University of Medical Sciences, Poland. The study group consisted of 230 men who gave sperm samples for the first time in our center as part of an infertility investigation...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28315665/physician-scientists-in-obstetrics-and-gynecology-predictors-of-success-in-obtaining-independent-research%C3%A2-funding
#9
Ijeoma Okeigwe, Cynthia Wang, Joseph A Politch, Linda J Heffner, Wendy Kuohung
BACKGROUND: Obstetrics and gynecology departments receive the smallest amount of National Institutes of Health research funding and have significantly lower application success rates compared to pediatric, internal medicine, and surgery departments. The development of mentored early career development training grants (K awards) has been one strategy implemented by the National Institutes of Health to help aspiring physician-scientists establish independent research careers. OBJECTIVE: The purpose of this study is to describe the cohort of obstetrics and gynecology physician-scientists who were K08, K12, and K23 recipients from 1988 through 2015 and to identify predictors of success in obtaining independent federal funding, as defined by acquisition of an R01, R21, R34, U01, U54, P01, or P50 award...
March 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28292614/embryo-transfer-simulation-improves-pregnancy-rates-and-decreases-time-to-proficiency-in-reproductive-endocrinology-and-infertility-fellow-embryo-transfers
#10
Ryan J Heitmann, Micah J Hill, John M Csokmay, Justin Pilgrim, Alan H DeCherney, Shad Deering
OBJECTIVE: To design and evaluate an ET simulator to train Reproductive Endocrinology and Infertility (REI) fellows' techniques of ET. DESIGN: Simulation model development and retrospective cohort analysis. SETTING: Not applicable. PATIENT(S): Patients undergoing IVF. INTERVENTION(S): Simulation model evaluation and implementation of ET simulation training. MAIN OUTCOME MEASURE(S): Pregnancy rates...
March 11, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28277140/interactive-case-based-learning-improves-resident-knowledge-and-confidence-in-reproductive-endocrinology-and-infertility
#11
Kara N Goldman, Ashley W Tiegs, Kristen Uquillas, Margaret Nachtigall, M Elizabeth Fino, Abigail F Winkel, Veronica Lerner
Resident physicians' scores on the REI section of the CREOG exam are traditionally low, and nearly 40% of house staff nation-wide perceive their REI knowledge to be poor. We aimed to assess whether an interactive case-based group-learning curriculum would narrow the REI knowledge gap by improving understanding and retention of core REI concepts under the time constraints affecting residents. A three-hour case-based workshop was developed to address four primary CREOG objectives. A multiple-choice test was administered immediately before and after the intervention and 7 weeks post-workshop, to evaluate both knowledge and confidence...
February 21, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28246045/characterisation-of-the-transcriptome-of-male-and-female-wild-type-guppy-brains-with-rna-seq-and-consequences-of-exposure-to-the-pharmaceutical-pollutant-17%C3%AE-ethinyl-estradiol
#12
Minna Saaristo, Bob B M Wong, Laura Mincarelli, Allison Craig, Christopher P Johnstone, Mayumi Allinson, Kai Lindström, John A Craft
Waterways are increasingly being contaminated by chemical compounds that can disrupt the endocrinology of organisms. One such compound is 17α-ethinyl estradiol (EE2), a synthetic estrogen used in the contraceptive pill. Despite considerable research interest in the effects of EE2 on reproduction and gene expression, surprisingly, only a few studies have capitalised on technologies, such as next-generation sequencing (NGS), to uncover the molecular pathways related to EE2 exposure. Accordingly, using high-throughput sequencing technologies, the aim of our study was to explore the effects of EE2 on brain transcriptome in wild-type male and female guppy (Poecilia reticulata)...
February 16, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28239427/food-components-and-contaminants-as-anti-androgenic-molecules
#13
REVIEW
Daniele Marcoccia, Marco Pellegrini, Marco Fiocchetti, Stefano Lorenzetti, Maria Marino
Androgens, the main male sex steroids, are the critical factors responsible for the development of the male phenotype during embryogenesis and for the achievement of sexual maturation and puberty. In adulthood, androgens remain essential for the maintenance of male reproductive function and behavior. Androgens, acting through the androgen receptor (AR), regulate male sexual differentiation during development, sperm production beginning from puberty, and maintenance of prostate homeostasis. Several substances present in the environment, now classified as endocrine disruptors (EDCs), strongly interfere with androgen actions in reproductive and non-reproductive tissues...
2017: Genes & Nutrition
https://www.readbyqxmd.com/read/28228319/optimizing-natural-fertility-a%C3%A2-committee-opinion
#14
(no author information available yet)
This Committee Opinion provides practitioners with suggestions for optimizing the likelihood of achieving pregnancy in couples/individuals attempting conception who have no evidence of infertility. This document replaces the document of the same name previously published in 2013, Fertil Steril 2013;100(3):631-7.
January 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28220080/validation-of-a-method-for-the-assessment-of-urinary-neopterin-levels-to-monitor-health-status-in-non-human-primate-species
#15
Verena Behringer, Jeroen M G Stevens, Fabian H Leendertz, Gottfried Hohmann, Tobias Deschner
Determining individual health status is of great importance for a better understanding of life history trade-offs between growth, reproduction, and maintenance. However, existing immunological methods are invasive and therefore not suitable for investigating health status in wild populations. Thus, there is an urgent need for non-invasive methods to assess the immune status of animals. Neopterin is involved in the cell-mediated pathway of the immune response (Th1-type), secreted during the activation of monocytes and macrophages...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28161857/on-developing-a-thesis-for-reproductive-endocrinology-and-infertility-fellowship-a-case-study-of-ultra-low-2-oxygen-tension-for-extended-culture-of-human-embryos
#16
REVIEW
Daniel J Kaser
Fellows in Reproductive Endocrinology and Infertility training are expected to complete 18 months of clinical, basic, or epidemiological research. The goal of this research is not only to provide the basis for the thesis section of the oral board exam but also to spark interest in reproductive medicine research and to provide the next generation of physician-scientists with a foundational experience in research design and implementation. Incoming fellows often have varying degrees of training in research methodology and, likewise, different career goals...
March 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28161526/low-fertility-preservation-utilization-among-transgender-youth
#17
Leena Nahata, Amy C Tishelman, Nicole M Caltabellotta, Gwendolyn P Quinn
PURPOSE: Research demonstrates a negative psychosocial impact of infertility among otherwise healthy adults, and distress among adolescents facing the prospect of future infertility due to various medical conditions and treatments that impair reproductive health. Guidelines state that providers should counsel transgender youth about potential infertility and fertility preservation (FP) options prior to initiation of hormone therapy. The purpose of this study was to examine the rates of fertility counseling and utilization of FP among a cohort of adolescents with gender dysphoria seen at a large gender clinic...
February 1, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28127831/vitamin-d-receptor-polymorphisms-and-the-polycystic-ovary-syndrome-a-systematic-review
#18
REVIEW
Guilherme Victor Oliveira Pimenta Dos Reis, Natália Alves Gontijo, Kathryna Fontana Rodrigues, Michelle Teodoro Alves, Cláudia Natália Ferreira, Karina Braga Gomes
Polycystic ovary syndrome (PCOS) is the most frequent endocrinological disorder that affects women of reproductive age, leading to metabolic alterations, such as hyperandrogenism, obesity, menstrual irregularities, insulin resistance, and polycystic ovaries. The etiology remains unclear, but several genetic and environmental factors have been correlated with manifestations of this syndrome. Vitamin D plays important roles in metabolic pathways affected by PCOS, including calcium homeostasis, the insulin pathway, and sex hormone synthesis...
January 27, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28079780/subspecialty-influence-on-scientific-peer-review-for-an-obstetrics-and-gynecology-journal-with-a-high-impact-factor
#19
Laura I Parikh, Rebecca S Benner, Thomas W Riggs, Nicholas Hazen, Nancy C Chescheir
OBJECTIVE: To evaluate whether quality of peer review and reviewer recommendation differ based on reviewer subspecialty in obstetrics and gynecology and to determine the role of experience on reviewer recommendation. METHODS: We performed a retrospective cohort study of reviews submitted to Obstetrics & Gynecology between January 2010 and December 2014. Subspecialties were determined based on classification terms selected by each reviewer and included all major obstetrics and gynecology subspecialties, general obstetrics and gynecology, and nonobstetrics and gynecology categories...
February 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28043344/relationships-among-temperament-acute-and-chronic-cortisol-and-testosterone-concentrations-and-breeding-soundness-during-performance-testing-of-angus-bulls
#20
S A Lockwood, H G Kattesh, J D Rhinehart, L G Strickland, P D Krawczel, J B Wilkerson, F D Kirkpatrick, A M Saxton
The aim of this study was to examine relationships among temperament, endocrinology, and reproductive parameters of bulls enrolled in an 84-day performance test. Angus bulls (n = 60) were housed in six pens grouped by age and weight. Pen scores (PS; 1 = docile to 5 = very aggressive) were assigned on Days -1, 27, 55, and 83 of the performance test. On the following day, blood and hair samples were collected, and body weight (BW) and exit velocity (EV) were recorded. Bulls were split into two categories based on; Day -1 PS (PScalm = PS 1 or 2; PSexcitable = PS 3 or 4) and Day 0 EV (EVcalm = slowest 20 bulls; EVexcitable = fastest 20 bulls)...
February 2017: Theriogenology
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