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https://www.readbyqxmd.com/read/28431277/endocrine-disruption-by-environmental-gestagens-in-amphibians-a-short-review-supported-by-new-in%C3%A2-vitro-data-using-gonads-of-xenopus-laevis
#1
REVIEW
Andrea Ziková, Claudia Lorenz, Frauke Hoffmann, Wibke Kleiner, Ilka Lutz, Matthias Stöck, Werner Kloas
Endocrine disruption caused by various anthropogenic compounds is of persisting concern, especially for aquatic wildlife, because surface waters are the main sink of these so-called endocrine disruptors (ED). In the past, research focused on (anti)estrogenic, (anti)androgenic, and (anti)thyroidal substances, affecting primarily reproduction and development in vertebrates; however, other endocrine systems might be also targeted by ED. Environmental gestagens, including natural progestogens (e.g. progesterone (P4)) and synthetic progestins used for contraception, are supposed to affect vertebrate reproduction via progesterone receptors...
April 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/28427990/neuropeptide-y-not-involved-in-cutaneous-vascular-control-in-young-human-females-taking-oral-contraceptive-hormones
#2
Gary J Hodges, Zachary T Martin, Andrew T Del Pozzi
We previously reported that the cutaneous vasodilator response to local warming in males required noradrenaline (NA) and neuropeptide-Y (NPY). Animal work has shown no role for NPY in female vascular control. We investigated the contribution of NA and NPY in human female cutaneous vascular control. Nine female and nine male participants volunteered. To elucidate whether synthetic oestrogen and progesterone altered cutaneous vascular responses, females were tested in high-hormone (HH) and low-hormone (LH) phases of oral contraceptive pill (OCP)...
April 18, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28426980/hormonal-and-reproductive-risk-factors-of-papillary-thyroid-cancer-a-population-based-case-control-study-in-france
#3
Emilie Cordina-Duverger, Christophe Leux, Monica Neri, Catherine Tcheandjieu, Anne-Valérie Guizard, Claire Schvartz, Thérèse Truong, Pascal Guénel
The three times higher incidence of thyroid cancer in women compared to men points to a role of female sex hormones in its etiology. However the effects of these factors are poorly understood. We analyzed the association between thyroid cancer and hormonal and reproductive factors among women enrolled in CATHY, a population-based case-control study conducted in France. The study included 430 cases of papillary thyroid cancer and 505 controls frequency-matched on age and area of residence. The odds ratios for thyroid cancer increased with age at menarche (p trend 0...
April 17, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28412867/weight-gain-body-image-and-sexual-function-in-young-patients-treated-with-contraceptive-vaginal-ring-a-prospective-pilot-study
#4
Elena Morotti, Paolo Casadio, Francesca Guasina, Bruno Battaglia, Mara Mattioli, Cesare Battaglia
INTRODUCTION: Oral contraceptives could induce mood changes. As far as our knowledge, there are no studies in literature that have examined the role of vaginal contraception in self-perceived body image. AIM: To evaluate the effects of intravaginal contraception on weight gain and perceived body image in relation with the Beck's Depression Inventory questionnaire (BDI) and the McCoy Female Sexuality Questionnaire (MFSQ). METHODS: Twenty-one adult (18-35 years old) eumenorrheic (menstrual cycle of 25-35 days), lean (body mass index - BMI - of 19-25 kg/m(2)) women who were referred for hormonal contraception were administered the Stunkard Figure Rating Scale (FRS), BDI and MFSQ...
April 17, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28407063/trends-in-the-sexual-behaviour-of-15-year-olds-in-scotland-2002-14
#5
Fergus G Neville, Juliet McEachran, Aixa Aleman-Diaz, Ross Whitehead, Alina Cosma, Dorothy Currie, Candace Currie
Early sexual initiation and inadequate contraceptive use can place adolescents at increased risk of unplanned pregnancy and sexually transmitted infections. These behaviours are patterned by gender and may be linked to social inequalities. This paper examines trends in sexual initiation and contraceptive use by gender and family affluence for Scottish adolescents. Cross-sectional data from four nationally representative survey cycles (2002, 2004, 2010, 2014) (n = 8895) (mean age = 15.57) were analysed. Logistic regressions examined the impact of survey year on sexual initiation, condom use and birth control pill (BCP) use at last sex; as well as any changes over time in association between family affluence and the three sexual behaviours...
April 11, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28404993/impacts-of-bisphenol-a-and-ethinyl-estradiol-on-male-and-female-cd-1-mouse-spleen
#6
Robin B Gear, Scott M Belcher
The endocrine disruptor bisphenol A (BPA) and the pharmaceutical 17α-ethinyl estradiol (EE) are synthetic chemicals with estrogen-like activities. Despite ubiquitous human exposure to BPA, and the wide-spread clinical use of EE as oral contraceptive adjuvant, the impact of these estrogenic endocrine disrupting chemicals (EDCs) on the immune system is unclear. Here we report results of in vivo dose response studies that analyzed the histology and microstructural changes in the spleen of adult male and female CD-1 mice exposed to 4 to 40,000 μg/kg/day BPA or 0...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28400322/bladder-involvement-in-stage-i-endometriosis
#7
Paula C Brady, Stacey A Missmer, Marc R Laufer
BACKGROUND: Endometriosis-the ectopic implantation of endometrial-like tissue-affects 10% of female adolescents and adults. Bladder involvement, causing dysuria and hematuria, occurs in a very small minority of endometriosis patients. CASE: The patient presented at age 12 years with dysuria and pelvic pain. Laparoscopy revealed Stage I endometriosis. Postoperatively, she reported persistent dysuria and passage of tissue in her urine. Cystoscopy showed diffuse erythema; urine cytology revealed glandular and spindle cells suggestive of endometriosis...
April 8, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28395326/signaling-mechanisms-in-mammalian-sperm-motility%C3%A2
#8
Maria João Freitas, Srinivasan Vijayaraghavan, Margarida Fardilha
The goal of sperm is to fertilize the oocyte. To achieve that purpose, it must acquire motility in the epididymis and hyperactivated motility in the female reproductive tract. Motility is only achieved when the sperm presents a fully functional flagellum, is capable of producing energy to fuel the movement, and suffers epididymal maturation and capacitation. Since sperm is a transcriptionally silent cell, motility depends on the activation and/or inhibitions of key signaling pathways. This review describes and discusses the main signaling pathways involved in primary and hyperactivated motility, as well as the bioenergetic mechanisms necessary to produce energy to fuel sperm motility...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28393811/a-cross-sectional-clinical-study-to-evaluate-mobility-of-teeth-during-pregnancy-using-periotest
#9
Poonam Sujeet Mishra, Pramod P Marawar, Sunil Surendraprasad Mishra
BACKGROUND AND OBJECTIVE: Over a century, an increased prevalence of gingival diseases associated with increasing plasma sex steroid hormone levels has been reported. These situations present unique challenges to the oral health-care professional. It is believed that hormonal fluctuations such as those associated with pregnancy, menstruation, and use of hormonal contraceptives lead to an increase in tooth mobility. However, this effect of female sex hormones on periodontal ligament and tooth-supporting alveolar bone has rarely been investigated...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28393651/anti-m%C3%A3-llerian-hormone-does-not-predict-time-to-pregnancy-results-of-a-prospective-cohort-study
#10
M Depmann, S L Broer, M J C Eijkemans, I A J van Rooij, G J Scheffer, J Heimensem, B W Mol, F J M Broekmans
In order to study whether ovarian reserve tests (ORTs) can predict time to ongoing pregnancy, we conducted a prospective cohort study in a cohort of healthy pregnancy planners. A total of 102 pregnancy planners were followed for 1 year, or until ongoing pregnancy occurred, after cessation of contraceptives). A baseline measurement of anti-Müllerian hormone (AMH), follicle-stimulating hormone (FSH) and antral follicle count (AFC) was conducted. At the end of follow-up, a semen analysis was performed and chlamydia antibody titres were assessed...
April 10, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28392282/heme-nitrosylated-hemoglobin-and-oxidative-stress-in-women-consuming-combined-contraceptives-clinical-application-of-the-epr-spectroscopy
#11
Irina I Lobysheva, Sandrine van Eeckhoudt, Ahmad Rifahi, Lucie Pothen, Flavia Dei Zotti, Christophe Beauloye, Jean-Luc Balligand
An increased risk of venous thromboembolism was identified in young women consuming combined contraceptive pills (CPs) suggesting a disturbance of vascular homeostasis but the impact of CP on endothelial function and redox status of the vasculature was not thoroughly analyzed. We measured the bioavailability of nitric oxide (NO), a main mediator of vascular homeostasis in a cohort of young female subjects (n = 114) and compared the results in users or not of CPs containing ethinyl estradiol and synthetic progestogens...
April 6, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28389043/interventions-to-reduce-the-risk-of-ovarian-and-fallopian-tube-cancer-a-european-menopause-and-andropause-society-postition-statement
#12
REVIEW
Faustino R Pérez-López, Iuliana Ceausu, Herman Depypere, Sean Kehoe, Irene Lambrinoudaki, Alfred Mueck, Levent M Senturk, Tommaso Simoncini, John C Stevenson, Petra Stute, Margaret Rees
BACKGROUND: Ovarian cancer is a leading cause of female gynecological cancer-related death, and there are no effective screening procedures or early diagnostic approaches. AIMS: To examine risk factors and risk-reducing strategies for both sporadic and familial tumors. MATERIALS AND METHODS: Literature review and consensus of expert opinion. RESULTS AND CONCLUSIONS: In women with a genetic predisposition to ovarian cancer, salpingo-oophorectomy reduces the risk of ovarian malignancy, and to a lesser degree of breast cancer...
March 15, 2017: Maturitas
https://www.readbyqxmd.com/read/28383371/long-acting-reversible-contraceptive-placement-among-active-duty-u-s-army-servicewomen
#13
Anne K Erickson, D Alan Nelson, Jonathan G Shaw, Pooja D Loftus, Lianne M Kurina, Kate A Shaw
OBJECTIVE: To quantify uptake of long-acting reversible contraceptives (LARC)-intrauterine devices (IUDs) and hormonal implants-among U.S. Army active-duty female soldiers and identify characteristics associated with uptake. METHODS: This retrospective cohort study used the Stanford Military Data Repository, which includes all digitally recorded health encounters for active-duty U.S. Army soldiers from 2011 to 2014. We analyzed data from women aged 18-44 years to assess rates of LARC initiation using medical billing codes...
May 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28382320/female-hormonal-exposures-and-neuromyelitis-optica-symptom-onset-in-a-multicenter-study
#14
Riley Bove, Liene Elsone, Enrique Alvarez, Nadja Borisow, Melissa M Cortez, Farrah J Mateen, Maureen A Mealy, Kerry Mutch, Sean Tobyne, Klemens Ruprecht, Guy Buckle, Michael Levy, Dean M Wingerchuk, Friedemann Paul, Anne H Cross, Brian Weinshenker, Anu Jacob, Eric C Klawiter, Tanuja Chitnis
OBJECTIVE: To study the association between hormonal exposures and disease onset in a cohort of women with neuromyelitis optica spectrum disorder (NMOSD). METHODS: Reproductive history and hormone use were assessed using a standardized reproductive survey administered to women with NMOSD (82% aquaporin-4 antibody positive) at 8 clinical centers. Using multivariable regression, we examined the association between reproductive exposures and age at first symptom onset (FS)...
May 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28381641/exploring-the-high-resolution-mapping-of-gender-disaggregated-development-indicators
#15
C Bosco, V Alegana, T Bird, C Pezzulo, L Bengtsson, A Sorichetta, J Steele, G Hornby, C Ruktanonchai, N Ruktanonchai, E Wetter, A J Tatem
Improved understanding of geographical variation and inequity in health status, wealth and access to resources within countries is increasingly being recognized as central to meeting development goals. Development and health indicators assessed at national or subnational scale can often conceal important inequities, with the rural poor often least well represented. The ability to target limited resources is fundamental, especially in an international context where funding for health and development comes under pressure...
April 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28377421/a-cross-sectional-analysis-of-trichomonas-vaginalis-infection-among-heterosexual-hiv-1-serodiscordant-african-couples
#16
Aaron F Bochner, Jared M Baeten, Alison S Rustagi, Edith Nakku-Joloba, Jairam R Lingappa, Nelly R Mugo, Elizabeth A Bukusi, Saidi Kapiga, Sinead Delany-Moretlwe, Connie Celum, Ruanne V Barnabas
OBJECTIVES: Trichomonas vaginalis is the most prevalent curable STI worldwide and has been associated with adverse health outcomes and increased HIV-1 transmission risk. We conducted a cross-sectional analysis among couples to assess how characteristics of both individuals in sexual partnerships are associated with the prevalence of male and female T. vaginalis infection. METHODS: African HIV-1 serodiscordant heterosexual couples were concurrently tested for trichomoniasis at enrolment into two clinical trials...
April 4, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28376481/use-of-hormone-replacement-in-females-with-endocrine-disorders
#17
Sophie Christin-Maitre
Hormone replacement therapy (HRT) is necessary in adolescents with primary ovarian insufficiency (POI) in order to avoid estrogen deficiency. The goal of this minirewiew is to present the different types of estrogens (17β-estradiol, estradiol valerate, ethinyl estradiol, and combined equine estrogens) as well as the different types of progestins available. In order to choose among the different types of HRTs, the features of each regimen are being discussed as well as their risks and their respective benefits...
April 4, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28376377/combined-oral-contraceptive-and-nitric-oxide-synthesis-inhibition-synergistically-causes-cardiac-hypertrophy-and-exacerbates-insulin-resistance-in-female-rats
#18
Lawrence A Olatunji, Kehinde S Olaniyi, Taofeek O Usman, Bilikis A Abolarinwa, Caleb J Achile, In-Kyeom Kim
Combined oral contraceptive (COC) use or inhibition of nitric oxide (NO) synthesis has been shown to cause hypertension and insulin resistance. However, the concomitant effects of COC and NO deficiency on the heart and glucose regulation are not well known. We therefore hypothesized that COC treatment during NO deficiency would lead to the development of cardiac hypertrophy that is associated with aggravated glucose deregulation, pro-inflammatory and pro-fibrotic biomarkers. Eight-week-old female Wistar rats were randomly allotted into control, NO deficient (N(G)-nitro-l-arginine methyl ester: L-NAME; 20...
March 20, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28376343/oral-contraception-and-menstrual-bleeding-during-treatment-of-venous-thromboembolism-expert-opinion-versus-current-practice-combined-results-of-a-systematic-review-expert-panel-opinion-and-an-international-survey
#19
F A Klok, K Schreiber, K Stach, W Ageno, S Middeldorp, S Eichinger, A Delluc, M Blondon, C Ay
INTRODUCTION: The optimal management of oral contraception and menstrual bleeding during treatment of venous thromboembolism (VTE) is largely unknown. We aimed to elicit expert opinion and compare that to current practice as assessed by a world-wide international web-based survey among physicians. METHODS: 10 international thrombosis experts and 10 abnormal uterine bleeding experts independently completed a questionnaire containing three hypothetical patient cases each with four different scenarios, and additional queries covering different severities of VTE, patient circumstances, hormonal contraceptives and both thrombotic and bleeding complications...
March 20, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28373471/continuation-of-a-levonorgestrel-intrauterine-device-during-hematopoietic-stem-cell-transplant-a-case-report
#20
Paula C Brady, Robert J Soiffer, Elizabeth S Ginsburg
BACKGROUND: During treatment of hematologic malignancies in premenopausal women, both menstrual suppression and contraception are crucial. Continuation of hormonal intrauterine devices (IUDs) - widely used and highly effective contraceptives that also decrease menstrual flow - is controversial during hematopoietic stem cell transplants (SCTs) due to infectious and vaginal bleeding concerns. CASE REPORT: A 23-year-old nulligravid female was diagnosed with acute myeloid leukemia (AML, positive for FLT3-ITD, DNMT3A and RUNX1, with normal cytogenetics)...
April 2017: Anticancer Research
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