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https://www.readbyqxmd.com/read/28934203/development-of-rat-female-genital-cortex-and-control-of-female-puberty-by-sexual-touch
#1
Constanze Lenschow, Johanna Sigl-Glöckner, Michael Brecht
Rat somatosensory cortex contains a large sexually monomorphic genital representation. Genital cortex undergoes an unusual 2-fold expansion during puberty. Here, we investigate genital cortex development and female rat sexual maturation. Ovariectomies and estradiol injections suggested sex hormones cause the pubertal genital cortex expansion but not its maintenance at adult size. Genital cortex expanded by thalamic afferents invading surrounding dysgranular cortex. Genital touch was a dominant factor driving female sexual maturation...
September 2017: PLoS Biology
https://www.readbyqxmd.com/read/28933961/17%C3%AE-estradiol-induces-proliferation-of-endometrial-nk-cells-cd56-in-postmenopausal-women
#2
T Sho, T Hachisuga, C Koi, T Kurita, S Kagami, T Kawagoe, Y Matsuura, K Yoshimura, M Hisaoka
OBJECTIVE: The aim of this report was to evaluate the impact of hormone replacement therapy (HRT) on lymphocytic infiltration of the endometrium in postmenopausal women. METHOD: This study included 58 Japanese patients who had undergone hysterectomy at the University Hospital of Occupational and Environmental Health, Japan. Before surgery, nine patients had received 17β-estradiol (E2), 0.72 mg transdermally for 2-8 weeks (E2 group); 16 patients had received an Estra-1,3,5(10)-triene-3,16α, 17β-triol (E3) vaginal tablet 0...
September 21, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28933574/is-there-a-role-for-kisspeptin-in-pathogenesis-of-polycystic-ovary-syndrome
#3
Umit Gorkem, Cihan Togrul, Emine Arslan, Ayla Sargin Oruc, Nuriye Buyukkayaci Duman
AIM: To investigate association of kisspeptin levels in infertile women with different ovarian reserve patterns. MATERIALS AND METHODS: In this prospective cross-sectional study, 157 participants were recruited. The women were divided into three groups: (i) adequate ovarian reserve (AOR) (n = 57), (ii) high ovarian reserve (PCOS) (n = 60), (iii) diminished ovarian reserve (DOR) (n = 40). Weight, height, waist circumference (WC), hip circumference (HC), body mass index (BMI), waist/hip ratio (WHR) were measured...
September 21, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28933248/removals-of-estrone-and-17%C3%AE-estradiol-by-microalgae-cultivation-kinetics-and-removal-mechanisms
#4
Chantima Ruksrithong, Songkeart Phattarapattamawong
Occurrence of estrone (E1) and 17β-estradiol (E2) in environment has attracted the public attention since E1 and E2 cause estrogenicity on aquatic microorganisms. Microalgae cultivation in wastewater is considered as an economical practice since microalgae can be used for not only pollutant removals, but also as energy resources. This research aims to investigate the removals of E1 and E2 in synthetic wastewater by microalgae (i.e. Chlorella vulgaris and Scenedesmus obliquus). At the steady state, Scenedesmus obliquus removed E1 and E2 by 91% and 99%, respectively...
September 21, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28931393/successful-pregnancy-and-live-birth-from-a-hypogonadotropic-hypogonadism-woman-with-low-serum-estradiol-concentrations-despite-numerous-oocyte-maturations-a-case-report
#5
Kaori Matsumoto, Kazuhiko Imakawa, Chuyu Hayashi
BACKGROUND: The increase in serum estradiol (E2) concentrations during the follicular phase becomes the index of oocyte maturation in vivo. When ovarian stimulation is performed to hypogonadotropic hypogonadism (HH) patients with only follicle stimulating hormone (FSH), proper increase in serum E2 concentrations is not observed. Even if oocytes are obtained, which usually have low fertilization rate. In this report, we would like to present an unique case, in which under low E2 concentrations and without luteinizing hormone (LH) administration, numerous mature oocytes could be obtained and a healthy baby delivered...
September 20, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28929436/endogenous-sex-hormone-exposure-and-repetitive-element-dna-methylation-in-healthy-postmenopausal-women
#6
Devon J Boyne, Christine M Friedenreich, John B McIntyre, Frank Z Stanczyk, Kerry S Courneya, Will D King
PURPOSE: Epigenetic mechanisms may help to explain the complex and heterogeneous relation between sex hormones and cancer. Few studies have investigated the effects of sex hormones on epigenetic markers related to cancer risk such as levels of methylation within repetitive DNA elements. Our objective was to describe the association between endogenous sex hormone exposure and levels of LINE-1 and Alu methylation in healthy postmenopausal women. METHODS: We nested a cross-sectional study within the Alberta Physical Activity and Breast Cancer Prevention Trial (2003-2006)...
September 19, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28927899/does-hormonal-contraception-during-molar-pregnancy-follow-up-influence-the-risk-and-clinical-aggressiveness-of-gestational-trophoblastic-neoplasia-after-controlling-for-risk-factors
#7
Patrícia Rangel Sobral Dantas, Izildinha Maestá, Jorge Rezende Filho, Joffre Amin Junior, Kevin M Elias, Neil Howoritz, Antonio Braga, Ross S Berkowitz
OBJECTIVE: To evaluate the influence of hormonal contraception (HC) on the development and clinical aggressiveness of gestational trophoblastic neoplasia (GTN) and the time for normalization of human chorionic gonadotropin (hCG) levels. METHODS: A retrospective cohort study was conducted with women diagnosed with molar pregnancy, followed at the Rio de Janeiro Trophoblastic Disease Center, between January 2005 and January 2015. The occurrence of postmolar GTN and the time for hCG normalization between users of HC or barrier methods (BM) during the postmolar follow-up or GTN treatment were evaluated...
September 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28927243/early-endometriosis-in-females-is-directed-by-immune-mediated-estrogen-receptor-alpha-and-il6-cross-talk
#8
Katherine A Burns, Seddon Y Thomas, Katherine J Hamilton, Steven L Young, Donald N Cook, Kenneth S Korach
Endometriosis is a gynecological disease that negatively affects the health of 1 in 10 women. While more information is known about late stage disease, the early initiation of endometriosis and lesion development is poorly understood. Herein, we use a uterine tissue transfer mouse model of endometriosis to examine early disease development and its dependence on estradiol (E2) and estrogen receptor a (ERα) within 72 h of disease initiation. Using wild type and ERα knockout mice as hosts or donors, we find significant infiltration of neutrophils and macrophages into the peritoneal cavity...
September 11, 2017: Endocrinology
https://www.readbyqxmd.com/read/28926514/a-randomized-multicenter-double-blind-study-to-evaluate-the-safety-and-efficacy-of-estradiol-vaginal-cream-0-003-in-postmenopausal-women-with-dyspareunia-as-the-most-bothersome-symptom
#9
Robin Kroll, David F Archer, Yuhua Lin, Vilma Sniukiene, James H Liu
OBJECTIVE: Vulvovaginal atrophy (VVA) is characterized by vaginal changes, dyspareunia, and itching/irritation. Efficacy and safety of a lower-dose estradiol vaginal cream (0.003%) were evaluated in postmenopausal women with VVA-related dyspareunia. METHODS: This was a phase 3, randomized, double-blind, placebo-controlled study. Sexually active postmenopausal women with moderate-severe dyspareunia as the most bothersome symptom, ≤5% vaginal superficial cells, and vaginal pH >5...
September 18, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28925930/in-vitro-glucuronidation-of-wushanicaritin-by-liver-microsomes-intestine-microsomes-and-expressed-human-udp-glucuronosyltransferase-enzymes
#10
Xiaodan Hong, Yuanru Zheng, Zifei Qin, Baojian Wu, Yi Dai, Hao Gao, Zhihong Yao, Frank J Gonzalez, Xinsheng Yao
Wushanicaritin, a natural polyphenol compound, exerts many biological activities. This study aimed to characterize wushanicaritin glucuronidation by pooled human liver microsomes (HLM), human intestine microsomes and individual uridine diphosphate-glucuronosyltransferase (UGT) enzyme. Glucuronidation rates were determined by incubating wushanicaritin with uridine diphosphoglucuronic acid-supplemented microsomes. Kinetic parameters were derived by appropriate model fitting. Reaction phenotyping, the relative activity factor (RAF) and activity correlation analysis were performed to identify the main UGT isoforms...
September 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28925272/-fertility-preserving-methods-in-women-with-breast-cancer-before-gonadotoxic-therapy
#11
N Halászová, I Crha, M Huser, V Weinberger, J Žáková, M Ješeta, E Lousová, E Filipinská, P Ventruba
OBJECTIVE: To present current options and own experiences with ovarian stimulation in young women with breast cancer before gonadotoxic therapy. DESIGN: Review article with own experiencies. METHODS: Literary search, analysis of own experiences with complex therapy in women with breast cancer planning pregnancy, definitions of stimulating protocols, using methods of assisted reproduction. SETTING: Department of Obstetrics and Gynecology, Faculty of Medicine, Masaryk University and University Hospital Brno...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28924522/estradiol-as-a-targeted-late-line-therapy-in-metastatic-breast-cancer-with-estrogen-receptor-amplification
#12
Karthik Kota, Adam Brufsky, Steffi Oesterreich, Adrian Lee
Estradiol is a major regulator of growth for the subset of breast cancers that express the estrogen receptor (ER, ESR1). Strategies to block ER action, via reduction of estradiol or direct inhibition of ER, have shown major success in the prevention and treatment of breast cancer. However, most ER-positive (ER+) metastatic breast cancers (MBC) eventually become resistant to these interventions. Interestingly, high dose estrogen can induce apoptosis in breast cancer cell lines, and high-dose estrogen has been used for over 50 years as therapy for ER+ breast cancer...
July 6, 2017: Curēus
https://www.readbyqxmd.com/read/28924252/comprehensive-analysis-of-lncrnas-and-mrnas-in-skeletal-muscle-of-rainbow-trout-oncorhynchus-mykiss-exposed-to-estradiol
#13
Jian Wang, Prasanthi P Koganti, Jianbo Yao, Shuo Wei, Beth Cleveland
Estradiol (E2) is a steroid hormone that negatively affects muscle growth in rainbow trout (Oncorhynchus mykiss), but the mechanisms directing with this response are not fully understood. To better characterize the effects of E2 in muscle, we identified differentially regulated mRNAs and lncRNAs in juvenile rainbow trout exposed to E2. Here, we performed next-generation RNA sequencing and comprehensive bioinformatics analyses to characterize the transcriptome profiles, including mRNAs and long noncoding RNAs (lncRNAs), in skeletal muscle of rainbow trout injected with E2...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923720/rosa-damascena-oil-improved-methadone-related-sexual-dysfunction-in-females-with-opioid-use-disorder-under-methadone-maintenance-therapy-%C3%A2-results-from-a-double-blind-randomized-and-placebo-controlled-trial
#14
Vahid Farnia, Faeze Tatari, Mostafa Alikhani, Katayoun Yazdchi, Moshen Taghizadeh, Dena Sadeghi Bahmani, Hassan Karbasizadeh, Edith Holsboer-Trachsler, Serge Brand
BACKGROUND: Methadone maintenance therapy (MMT) is provided to patients with opioid use disorder (OUD). However, as with all opioids, methadone impacts negatively on sexual function. To counter this, Rosa Damascena oil (RDO) has been used successfully for opioid-dependent male patients under MMT and with methadone-related sexual dysfunction (MRSD). In the present study, we tested the possible influence of RDO on sexual function and sex hormones of opioid-dependent female patients undergoing MMT and with MRSD...
August 16, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28923176/gaps-limitations-and-new-insights-on-endogenous-estrogen-and-follicle-stimulating-hormone-as-related-to-risk-of-cardiovascular-disease-in-women-traversing-the-menopause-a-narrative-review
#15
REVIEW
Samar R El Khoudary
While it is known that estrogen protects heart health in women prior to menopause, its role after menopause and during the menopause transition is far less apparent. Previous reviews summarizing the literature on the impact of endogenous estrogen on risk of cardiovascular disease (CVD) have focused on postmenopausal women and have not come to a clear conclusion. No previous review has summarized the associations between follicle stimulating hormone (FSH), a proxy measure of the menopause transition, and CVD risk...
October 2017: Maturitas
https://www.readbyqxmd.com/read/28921734/the-extracellular-signal-regulated-kinase-1-2-triggers-angiogenesis-in-human-ectopic-endometrial-implants-by-inducing-angioblast-differentiation-and-proliferation
#16
Sefa Arlier, William Murk, Ozlem Guzeloglu-Kayisli, Nihan Semerci, Kellie Larsen, Mehmet S Tabak, Aydin Arici, Frederick Schatz, Charles J Lockwood, Umit A Kayisli
PROBLEM: The role of extracellular signal-regulated kinase (ERK)1/2-mediated angiogenesis during endometriotic nidation is unknown. We posit that ERK1/2-induced angioblast differentiation and proliferation promotes ectopic endometrial angiogenesis. METHODS OF STUDY: Human eutopic and ectopic endometria were immunostained for total- (T-) or phosphorylated- (P-) ERK1/2 or double-immunostained for P-ERK1/2-CD34 and PCNA-CD34. Estradiol (E2 ), cytokines, normal peritoneal fluid (NPF) or endometriotic peritoneal fluid (EPF) ±PD98059, an ERK1/2 inhibitor, treaded primary human endometrial endothelial cells (HEECs) were evaluated by T-/P-ERK1/2 immunoblotting, MTT viability and tube formation assays...
September 16, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28920713/estradiol-decreases-blood-pressure-in-association-with-redox-regulation-in-preeclampsia
#17
Goran M Babic, Snezana D Markovic, Mirjana Varjacic, Natasa Z Djordjevic, Tamara Nikolic, Isidora Stojic, Vladimir Jakovljevic
In this study, we tested a hypothesis that a short-term estradiol therapy may reduce blood pressure in preeclampsia by modulating plasma oxidative stress. The intramuscular injections of 10 mg 17-beta-estradiol were prescribed to preeclamptic pregnant women during the 3-day therapy before a labor induction. The analyses of mean arterial pressure (MAP), serum estradiol concentrations, plasma superoxide anion (O2.), hydrogen peroxide (H2O2), nitrites (NO2(-)), and peroxynitrite (ONOO(-)) were conducted before and during the therapy...
September 18, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28919451/biphasic-modulation-of-neuro-and-interrenal-steroidogenesis-in-juvenile-african-sharptooth-catfish-clarias-gariepinus-exposed-to-waterborne-di-2-ethylhexyl-phthalate
#18
Augustine Arukwe, Oju R Ibor, Aina O Adeogun
Receptor (i.e genomic) and non-receptor (or non-genomic) effects of endocrine toxicology have received limited or almost non-existent attention for tropical species and regions. In the present study, we have studied the effects of di-(2-ethylhexyl) phthalate (DEHP) on neuro- and interrenal steroidogenesis of the African catfish (Clarias gariepinus) using molecular, immunochemical and physiological approaches. Juvenile fish (mean weight and length: 5.6 ± 0.6g and 8.2 ± 1.2 cm, respectively), were randomly distributed into ten 120 L rectangular glass tanks containing 60 L of dechlorinated tap water, at 50 fish per exposure group...
September 14, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28918339/interference-of-dibutylphthalate-on-human-prostate-cell-viability
#19
Mariana Di Lorenzo, Maurizio Forte, Salvatore Valiante, Vincenza Laforgia, Maria De Falco
Dibutylphthalate (DBP) is an environmental pollutant widely used as plasticizer in a variety of industrial applications worldwide. This agent can be found in personal-care products, children's toy, pharmaceuticals, food products. Exposure to DBP can occur via ingestion and inhalation as well as intravenous or skin contact. DBP belongs to the family of endocrine disrupting chemicals (EDCs) and its effects on reproductive system were demonstrated both in vivo and in vitro. In the present study we evaluated the effects of DBP on human prostate adenocarcinoma epithelial cells (LNCaP) in order to highlight xenoestrogens influence on human prostate...
September 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28918318/high-sensitivity-method-validated-to-quantify-estradiol-in-human-plasma-by-lc-ms-ms
#20
Mônica Siqueira Ferreira, André M M Arruda, Giovanni Tieghi Pepi, Aline Cristina Martho, Pâmela Maria Maximiano, Lina S O B O Ricci, Maria Francesca Riccio, Ana Cláudia Noboli, Pedro Serafim
17β-Estradiol (E2) is an endogenous steroid in the human body. Its measurement is important for health and human biology understanding. However, E2 concentration in human plasma is in the range of pg/mL, which makes it difficult to detect. In this way, LC-MS/MS has been shown the most sensitive tool, although E2 is a weakly ionizable molecule. In this work, we validated a more sensitive and accurate method for E2 quantification in human plasma. Our extraction step ensured a cleaner chromatography, resulting in a precise measurement and highly reproducible method in the range of 2-150pg/mL...
September 5, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
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