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https://www.readbyqxmd.com/read/28823012/ratio-of-circulating-estrogen-receptors-beta-and-alpha-er%C3%AE-er%C3%AE-indicates-endoscopic-activity-in-patients-with-crohn-s-disease
#1
Pablo M Linares, Alicia Algaba, Ana Urzainqui, Mercedes Guijarro-Rojas, Rafael González-Tajuelo, Jesús Garrido, María Chaparro, Javier P Gisbert, Fernando Bermejo, Iván Guerra, Víctor Castellano, María-Encarnación Fernández-Contreras
BACKGROUND: Data supporting a role of female hormones and/or their receptors in inflammatory bowel disease (IBD) are increasing, but most of them are derived from animal models. Estrogen receptors alpha (ERα) and beta (ERβ) participate in immune and inflammatory response, among a variety of biological processes. Their effects are antagonistic, and the net action of estrogens may depend on their relative proportions. AIM: To determine the possible association between the balance of circulating ERβ and ERα (ERβ/ERα) and IBD risk and activity...
August 19, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28822833/complete-knockout-of-estrogen-receptor-alpha-is-not-directly-protective-in-murine-lupus
#2
Jennifer L Scott, Jena R Wirth, Jackie Eudaly, Phil Ruiz, Melissa A Cunningham
Systemic lupus erythematosus (SLE) is a chronic and potentially severe autoimmune disease that disproportionately affects women. Despite a known role for hormonal factors impacting autoimmunity and disease pathogenesis, the specific mechanisms of action remain poorly understood. Our laboratory previously backcrossed "estrogen receptor alpha knockout (ERαKO)" mice onto the NZM2410 lupus prone background to generate NZM/ERαKO mice. This original ERαKO mouse, developed in the mid-1990s and utilized in hundreds of published studies, is not in fact ERα null...
August 16, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28821466/endocrine-disrupting-effects-of-waterborne-fluoxetine-exposure-on-the-reproductive-axis-of-female-goldfish-carassius-auratus
#3
Jan A Mennigen, Jacob M Zamora, John P Chang, Vance L Trudeau
Evidence suggests that pharmaceuticals and personal care products reach urban watersheds, bioconcentrate in fish, and potentially disrupt physiological homeostasis. These impairments often affect hormone functions. Selective serotonin reuptake inhibitors (SRRIs) are increasingly studied with regards to their endocrine disrupting effects on teleost physiological processes, including reproduction. To examine whether FLX effects on the endocrine regulation of reproductive physiology in goldfish are sex-specific, we exposed sexually recrudescent female goldfish to two waterborne concentrations of FLX (0...
August 15, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28821270/calmodulin-like-protein-3-is-an-estrogen-receptor-alpha-coregulator-for-gene-expression-and-drug-response-in-a-snp-estrogen-and-serm-dependent-fashion
#4
Sisi Qin, James N Ingle, Mohan Liu, Jia Yu, D Lawrence Wickerham, Michiaki Kubo, Richard M Weinshilboum, Liewei Wang
BACKGROUND: We previously performed a case-control genome-wide association study in women treated with selective estrogen receptor modulators (SERMs) for breast cancer prevention and identified single nucleotide polymorphisms (SNPs) in ZNF423 as potential biomarkers for response to SERM therapy. The ZNF423rs9940645 SNP, which is approximately 200 bp away from the estrogen response elements, resulted in the SNP, estrogen, and SERM-dependent regulation of ZNF423 expression and, "downstream", that of BRCA1...
August 18, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28821197/regional-variability-in-percentage-of-breast-cancers-reported-as-positive-for-her2-in-california-implications-of-patient-demographics-on-laboratory-benchmarks
#5
Chieh-Yu Lin, Eugene E Carneal, Daphne Y Lichtensztajn, Scarlett L Gomez, Christina A Clarke, Kristin C Jensen, Allison W Kurian, Kimberly H Allison
Objectives: The expected regional variability in percent human epidermal growth factor receptor 2 (HER2)-positive breast cancers is not currently clear. Methods: Data from the 2006 to 2011 California Cancer Registry were examined by county and health service area. The influence of demographic and pathologic features was used in a multivariable logistic regression model to compare expected with observed HER2-positive percentages by region. Results: There was significant geographic variation by California counties (11...
September 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28820402/does-signaling-of-estrogen-related-receptors-affect-structure-and-function-of-bank-vole-leydig-cells
#6
P Pawlicki, A Milon, M Zarzycka, J Galas, W Tworzydlo, A Kaminska, L Pardyak, K Lesniak, A Pacwa, B Bilinska, E Gorowska-Wojtowicz, M Kotula-Balak
To get a deeper insight into the function of estrogen-related receptors (ERRs) and dissect underlying mechanism in Leydig cells, ERRs (type α, β and γ) were blocked or activated in testes of adult bank voles (Myodes glareolus) which show seasonal changes in the intratesticular sex hormones level. Both actively reproducing animals (long day conditions; LD) and those with regression of the reproductive system (short day conditions; SD) received intraperitoneal injections of selective ERRα antagonist 3-[4-(2,4-Bis-trifluoromethylbenzyloxy)-3-methoxyphenyl]-2-cyano-N-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)acrylamide (XCT 790) or selective ERRβ/ERRγ agonist N-(4-(Diethylaminobenzylidenyl)-N'-(4-hydroxybenzoyl)-hydrazine (DY131) (50 μ/kg bw; six doses every other day)...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28820306/prognostic-value-of-estrogen-receptor-in-who-grade-iii-meningioma-a-long-term-follow-up-study-from-a-single-institution
#7
Lingyang Hua, Hongda Zhu, Jingrun Li, Hailiang Tang, Dapeng Kuang, Yin Wang, Feng Tang, Xiancheng Chen, Liangfu Zhou, Qing Xie, Ye Gong
OBJECTIVE Malignant meningioma is rare and classified as Grade III in the WHO classification of CNS tumors. However, the presence of estrogen receptor (ER) in WHO Grade III meningiomas and its correlation with patients' outcomes are still unclear. In this single-center cohort study, the authors analyzed clinical features, treatment, and prognosis of these malignant tumors in patients with long-term follow-up. METHODS A total of 87 patients who were pathologically diagnosed with WHO Grade III meningiomas between 2003 and 2008 were enrolled in this study and followed for at least 7 years...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28819152/dissecting-the-genomic-activity-of-a-transcriptional-regulator-by-the-integrative-analysis-of-omics-data
#8
Giulio Ferrero, Valentina Miano, Marco Beccuti, Gianfranco Balbo, Michele De Bortoli, Francesca Cordero
In the study of genomic regulation, strategies to integrate the data produced by Next Generation Sequencing (NGS)-based technologies in a meaningful ensemble are eagerly awaited and must continuously evolve. Here, we describe an integrative strategy for the analysis of data generated by chromatin immunoprecipitation followed by NGS which combines algorithms for data overlap, normalization and epigenetic state analysis. The performance of our strategy is illustrated by presenting the analysis of data relative to the transcriptional regulator Estrogen Receptor alpha (ERα) in MCF-7 breast cancer cells and of Glucocorticoid Receptor (GR) in A549 lung cancer cells...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818434/adjusting-for-covariates-in-evaluating-markers-for-selecting-treatment-with-application-to-guiding-chemotherapy-for-treating-estrogen-receptor-positive-node-positive-breast-cancer
#9
Holly Janes, Marshall D Brown, Michael R Crager, Dave P Miller, William E Barlow
In many clinical contexts, biomarkers that predict treatment efficacy are highly sought after. Such treatment selection or predictive biomarkers have the potential to identify subgroups most likely to benefit from the treatment, and may therefore be used to improve clinical outcomes and reduce medical costs. A methodological challenge in evaluating these biomarkers is determining how to take into account other variables that predict clinical outcomes, or that influence the biomarker distribution, generically termed covariates...
August 14, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28816991/a-case-report-of-tracheal-inflammatory-myofibroblastic-tumor-in-a-34-week-pregnant-woman-misdiagnosed-with-asthma
#10
Xiaochen Li, Juan Li, Xiaoling Rao, Qilin Ao, Xiaopei Cao, Yali Huang, Shengding Zhang, Xiaoyu Fang, Xiansheng Liu, Min Xie
RATIONALE: Inflammatory myofibroblastic tumor (IMT) is an uncommon neoplastic entity with a tendency of local recurrence and a low risk of distant metastasis. Involvement of trachea is extremely rare. PATIENT CONCERNS: A 34-week pregnant woman previously diagnosed with asthma for 2 months was admitted with persistent wheezing and hemoptysis. A computed tomography scan and bronchoscopy revealed a gigantic polyp in the trachea. DIAGNOSES: Tracheal inflammatory myofibroblastic tumor...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816969/immediate-breast-reconstruction-with-omental-flap-for-luminal-breast-cancer-patients-ten-clinical-case-reports
#11
Nanlin Li, Zhao Zheng, Jipeng Li, Jing Fan, Ting Wang, Juliang Zhang, Hui Wang, Jianghao Chen, Yonggang Lv, Jun Yi, Meiling Huang, Rui Ling
RATIONALE: Luminal subtype breast cancer, accounting for 70 to 80% of all breast cancers, has been reported to be associated with good prognosis. However, for the patients with large mass or worse mass position, omental flap transplantation may provide a new option for breast reconstruction. PATIENT CONCERNS: Ten patients (6 luminal B1, 2 luminal B2, 2 luminal A), were enrolled into the study, between January 23, 2015 and August 22, 2016. The mean age was 34.6 ± 6...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816143/radiation-therapy-versus-no-radiation-therapy-to-the-neo-breast-following-skin-sparing-mastectomy-and-immediate-autologous-free-flap-reconstruction-for-breast-cancer-patient-reported-and-surgical-outcomes-at-1-year-a-mastectomy-reconstruction-outcomes-consortium
#12
MULTICENTER STUDY
Andrew L Cooke, Julian Diaz-Abele, Tom Hayakawa, Ed Buchel, Kimberly Dalke, Pascal Lambert
PURPOSE: To determine whether adjuvant radiation therapy (RT) is associated with adverse patient-reported outcomes and surgical complications 1 year after skin-sparing mastectomy and immediate autologous free flap reconstruction for breast cancer. METHODS AND MATERIALS: We compared 24 domains of patient-reported outcome measures 1 year after autologous reconstruction between patients who received adjuvant RT and those who did not. A total of 125 patients who underwent surgery between 2012 and 2015 at our institution were included from the Mastectomy Reconstruction Outcomes Consortium study database...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28816099/sex-differences-of-steroid-receptor-coactivator-1-expression-after-spinal-cord-injury-in-mice
#13
Jiayu Xiao, Jiqiang Zhang, Yangang Zhao, Wenjie Huang, Zhikai Guo, Bingyin Su, Qiang Guo
OBJECTIVE: The neural functional recovery of female is often better than that of male after spinal cord injury (SCI). Evidences show that estrogen can attenuate inflammation and promote the neural survival and regeneration after SCI. SRC-1 is an essential initiation factor for the estrogen-regulated target gene transcription and plays a key role in regulating estrogen activity. However, it is not known whether and how SRC-1 mediates the neural regeneration promoted by estrogen after SCI...
August 17, 2017: Neurological Research
https://www.readbyqxmd.com/read/28815913/metastatic-triple-negative-breast-cancer-optimizing-treatment-options-new-and-emerging-targeted-therapies
#14
REVIEW
Parham Khosravi-Shahi, Luis Cabezón-Gutiérrez, Sara Custodio-Cabello
Triple negative breast cancer (TNBC) is a heterogeneous disease, not only on the molecular level, but also on the pathologic and clinical levels. It also has a distinct epidemiology. TNBCs are frequently of high histologic grade, typically more aggressive and difficult to treat than hormone receptor-positive tumors, and they are associated with a higher risk of early relapse with visceral metastasis after surgery, chemotherapy and/or radiotherapy. The lack of estrogen receptor, progesterone receptor and human epidermal growth factor receptor 2 expression precludes the use of targeted therapies in advanced stages, and the only approved systemic treatment option is chemotherapy with or without bevacizumab...
August 16, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28815749/commentary-estrogen-receptor-expression-in-melanoma
#15
E Ramelyte, P Koelblinger, R Dummer
Sexual hormones share a common cholesterol derived steroid backbone and comprise estrogens, gestagens and androgens. They elicit numerous physiological and pathological functions; e.g. androgens are known to contribute to prostatic cancer development, whereas estrogens are of major importance in the pathogenesis of breast cancer. In 1986, presence of estrogen receptors (ER) on breast cancer cells was described as one of the first biomarkers in oncology [1]. This article is protected by copyright. All rights reserved...
August 16, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28815728/effects-of-bifenthrin-exposure-on-the-estrogenic-and-dopaminergic-pathways-in-zebrafish-embryos-and-juveniles
#16
Luísa Becker Bertotto, Jaben Richards, Jay Gan, David Christopher Volz, Daniel Schlenk
Bifenthrin (BF) is a pyrethroid insecticide used in urban and agricultural applications. Previous studies have shown that environmentally relevant (ng/L) concentrations of BF increased plasma concentrations of 17β-estradiol (E2) and altered the expression of dopaminergic (DA) pathway components. DA neurons can indirectly regulate E2 biosynthesis, suggesting that BF may disrupt the hypothalamic-pituitary-gonadal (HPG) axis. Since embryos do not have a complete HPG axis, the hypothesis that BF impairs DA regulation was tested in embryonic and one-month old juvenile zebrafish (Danio rerio) with exposure to measured concentrations of 0...
August 16, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28815558/sequence-variants-in-esr1-and-oxtr-are-associated-with-mayer-rokitansky-k%C3%A3-ster-hauser-syndrome
#17
Sara Yvonne Brucker, Liliane Frank, Simone Eisenbeis, Melanie Henes, Diethelm Wallwiener, Olaf Riess, Barbara Van Eijck, Dorit Schöller, Michael Bonin, Kristin Katharina Rall
INTRODUCTION: Mayer-Rokitansky-Küster-Hauser syndrome (MRKHS) is characterized by congenital absence of the uterus and the upper two-thirds of the vagina in otherwise phenotypically normal females. It is found isolated or associated with renal, skeletal and other malformations. Despite of ongoing research, the etiology is mainly unknown. For a long time, the hypothesis of deficient hormone receptors as cause for MRKHS exists, and is supported by previous findings of our group. The aim of the present study was to identify unknown genetic causes for MRKHS and to compare them with data banks including a review of the literature...
August 16, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28814897/discordance-of-the-estrogen-receptor-and-her-2-neu-in-breast-cancer-from-primary-lesion-to-first-and-second-metastatic-site
#18
Elyse E Lower, Shagufta Khan, Diane Kennedy, Robert P Baughman
BACKGROUND: Hormone receptor and HER-2/neu discordance between the primary lesion and first metastasis has been reported. This study was performed to determine further biomarker discordance rates between the first and subsequent metastatic breast cancer lesions. METHODS: We performed a retrospective review of paired biomarkers from primary breast cancers compared to first reported and subsequent metastases from 103 patients with breast cancer. The estrogen receptor (ER), progesterone receptor (PR), and HER-2/neu status were reported at all three time points...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28814778/in-vivo-and-in-vitro-sex-differences-in-the-dendritic-morphology-of-developing-murine-hippocampal-and-cortical-neurons
#19
Kimberly P Keil, Sunjay Sethi, Machelle D Wilson, Hao Chen, Pamela J Lein
Altered dendritic morphology is common in neurodevelopmental disorders (NDDs), many of which show sex biases in prevalence, onset and/or severity. However, whether dendritic morphology varies as a function of sex in juvenile mice or primary neuronal cell cultures is largely unknown even though both are widely used models for studying NDDs. To address this gap, we quantified dendritic morphology in CA1 pyramidal hippocampal and adjacent somatosensory pyramidal cortical neurons from male and female postnatal day (P)28 C57BL/6J mice...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814476/phase-i-trial-of-the-androgen-receptor-modulator-cr1447-in-breast-cancer
#20
Martin Zweifel, Beat Thuerlimann, Salome Riniker, Patrik Weder, Roger von Moos, Olivia Pagani, Martin Bigler, Karin M Rothgiesser, Christiane Pilop, Hanne Hawle, Peter Brauchli, Coya Tapia, Wolfgang Schoenfeld, Cristiana Sessa
CR 1447 (4-hydroxytestosterone, 4-OHT) binds to the androgen receptor and has antiproliferative activity in both ER-positive and ER-negative/AR-positive breast cancer cells in pre-clinical studies. The objective of this first-in man trial was to evaluate safety and to determine the dose of CR1447, administered as an ointment, for Phase II. Escalating doses (100, 200, 400 mg) of CR1447 were administered topically on a daily basis to patients with ER-positive/AR-positive/HER2-negative advanced breast cancer pretreated with several lines of therapy...
August 16, 2017: Endocrine Connections
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