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https://www.readbyqxmd.com/read/27899892/age-dependent-hepatic-udp-glucuronosyltransferase-gene-expression-and-activity-in-children
#1
Elizabeth Neumann, Huma Mehboob, Jacqueline Ramírez, Snezana Mirkov, Min Zhang, Wanqing Liu
UDP-glucuronosyltransferases (UGTs) are important phase II drug metabolism enzymes. The aim of this study was to explore the relationship between age and changes in mRNA expression and activity of major human hepatic UGTs, as well as to understand the potential regulatory mechanism underlying this relationship. Using previously generated data, we investigated age-dependent mRNA expression levels of 11 hepatic UGTs (UGT1A1, UGT1A3, UGT1A4, UGT1A5, UGT1A6, UGT1A9, UGT2B4, UGT2B7, UGT2B10, UGT2B15, and UGT2B17) and 16 transcription factors (AHR, AR, CAR, ESR2, FXR, GCCR, HNF1a, HNF3a, HNF3b, HNF4a, PPARA, PPARG, PPARGC, PXR, SP1, and STAT3) in liver tissue of donors (n = 38) ranging from 0 to 25 years of age...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27893427/cholesterol-import-and-steroidogenesis-are-biosignatures-for-gastric-cancer-patient-survival
#2
Wei-Chun Chang, Shang-Fen Huang, Yang-Ming Lee, Hsueh-Chou Lai, Bi-Hua Cheng, Wei-Chung Cheng, Jason Yen-Ping Ho, Long-Bin Jeng, Wen-Lung Ma
Androgens, estrogens, progesterone and related signals are reported to be involved in the pathology of gastric cancer. However, varied conclusions exist based on serum hormone levels, receptor expressions, and in vitro or in vivo studies. This report used a web-based gene survival analyzer to evaluate biochemical processes, including cholesterol importing via lipoprotein/receptors (L/R route), steroidogenic enzymes, and steroid receptors, in gastric cancer patients prognosis. The sex hormone receptors (androgen receptor, progesterone receptor, and estrogen receptor ESR1 or ESR2), L/R route (low/high-density lipoprotein receptors, LDLR/LRP6/SR-B1 and lipoprotein lipase, LPL) and steroidogenic enzymes (CYP11A1, HSD3B1, CYP17, HSD17B1, HSD3B1, CYP19A1 and SRD5A1) were associated with 5-year survival of gastric cancer patients...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27871902/the-effects-of-long-term-estradiol-treatment-on-social-behavior-and-gene-expression-in-adult-female-rats
#3
Alexandra N Garcia, Kelsey Bezner, Christina Depena, Weiling Yin, Andrea C Gore
This study tested the effects of long-term estradiol (E2) replacement on social behavior and gene expression in brain nuclei involved in the regulation of these social behaviors in adult female rats. We developed an ultrasonic vocalization (USV) test and a sociability test to examine communications, social interactions, and social preference, using young adult female cagemates. All rats were ovariectomized (OVX) and implanted with a Silastic capsule containing E2 or vehicle, and housed in same-treatment pairs for a 3-month period...
November 19, 2016: Hormones and Behavior
https://www.readbyqxmd.com/read/27865593/identification-of-novel-therapeutic-targets-in-anaplastic-thyroid-carcinoma-using-functional-genomic-mrna-profiling-paving-the-way-for-new-avenues
#4
Pascal K C Jonker, Gooitzen M van Dam, Sjoukje F Oosting, Schelto Kruijff, Rudolf S N Fehrmann
BACKGROUND: Currently, anaplastic thyroid carcinoma has a very poor prognosis and there is an unmet need for new therapeutic options. Therefore, this study aims to identify upregulated genes in anaplastic thyroid carcinoma with known drug interactions that could serve as new therapeutic targets. METHODS: Publicly available microarray expression profiles of anaplastic thyroid carcinoma and normal thyroid tissue were collected. FGmRNA-profiling was applied, which is a recently developed method that enhances the ability to capture the downstream effects of genomic alterations on gene expression levels...
November 16, 2016: Surgery
https://www.readbyqxmd.com/read/27862950/region-specific-effects-of-oestradiol-on-adipose-derived-stem-cell-differentiation-in-post-menopausal-women
#5
Kimberly A Cox-York, Christopher B Erickson, Rocio I Pereira, Daniel H Bessesen, Rachael E Van Pelt
The goal of this study was to determine the effect of acute transdermal 17β-oestradiol (E2 ) on the adipogenic potential of subcutaneous adipose-derived stem cells (ASC) in post-menopausal women. Post-menopausal women (n = 11; mean age 57 ± 4.5 years) were treated for 2 weeks, in a randomized, cross-over design, with transdermal E2 (0.15 mg) or placebo patches. Biopsies of abdominal (AB) and femoral (FEM) subcutaneous adipose tissue (SAT) were obtained after each treatment and mature adipocytes were analysed for cell size and ASC for their capacity for proliferation (growth rate), differentiation (triglyceride accumulation) and susceptibility to tumour necrosis factor alpha-induced apoptosis...
November 15, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27861489/characterizing-transcriptional-networks-in-male-rainbow-darter-etheostoma-caeruleum-that-regulate-testis-development-over-a-complete-reproductive-cycle
#6
Paulina A Bahamonde, Mark E McMaster, Mark R Servos, Christopher J Martyniuk, Kelly R Munkittrick
Intersex is a condition that has been associated with exposure to sewage effluents in male rainbow darter (Etheostoma caeruleum). To better understand changes in the transcriptome that are associated with intersex, we characterized annual changes in the testis transcriptome in wild, unexposed fish. Rainbow darter males were collected from the Grand River (Ontario, Canada) in May (spawning), August (post-spawning), October (recrudescence), January (developing) and March (pre-spawning). Histology was used to determine the proportion of spermatogenic cell types that were present during each period of testicular maturation...
2016: PloS One
https://www.readbyqxmd.com/read/27824510/association-of-bf-rbp4-and-esr2-genotypes-with-litter-size-in-an-autochthonous-pig-population
#7
G P Laliotis, A Marantidis, M Avdi
: The aim of the present study was to determine any potential association of the BF, RBP4, and ESR2 genes with reproduction traits in an autochthonous Greek pig population. The PCR-RFLP methodology was implemented for genotyping purposes of the examined genes. No deviation from the Hardy-Weinberg equilibrium was observed for the examined loci, while the B allele noted to be the more frequent in all analyzed genes. In addition, sows with the AA genotype of BF gene found to produce significantly lower numbers of the total born piglets (TNB) and number of piglets born alive (TNA), while the respective BB genotype significantly exceeded in TNB and NBA traits compared to the other two genotypes (P < 0...
November 8, 2016: Animal Biotechnology
https://www.readbyqxmd.com/read/27814959/interaction-of-estrogen-receptor-%C3%AE-and-negative-life-events-in-susceptibility-to-major-depressive-disorder-in-a-chinese-han-female-population
#8
Jian Zhang, Lu Chen, Jingsong Ma, Zhengxue Qiao, Mingzhe Zhao, Dong Qi, Yan Zhao, Bo Ban, Xiongzhao Zhu, Jincai He, Yanjie Yang, Hui Pan
BACKGROUND: Both genetic and environmental factors as well as their interaction contribute to the etiology of major depressive disorder (MDD). Estrogen receptor β (ESR2) may play a vital role in the development of MDD in females. The aim of this study is to analyze ESR2 gene polymorphisms and the interaction of ESR2 gene variation and negative life events concerning the risk of developing MDD in females, especially during menopausal stage. METHODS: Genotyping was performed by Taqman allelic discrimination assay among 191 female MDD patients and 200 healthy females...
October 25, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27778160/new-evidence-for-involvement-of-esr1-gene-in-susceptibility-to-chinese-migraine
#9
Xingkai An, Jie Fang, Qing Lin, Congxia Lu, Qilin Ma, Hongli Qu
Migraine is a common and disabling nervous system disease with a significant genetic predisposition. The sex hormones play an important role in the pathogenesis of migraine. However, the conclusions of the previous genetic relation studies are conflicting. The aim of this study is to determine whether variants in genes involved in estrogen receptor and estrogen hormone metabolism are related to Chinese migraine. By employing a case-control approach, 8 SNPs in the ESR1, ESR2, and CYP19A1 genes are studied in a cohort of 494 migraine cases and 533 controls...
October 24, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27773348/endometrial-prostaglandin-synthases-ovarian-steroids-and-oxytocin-receptors-in-mares-with-oxytocin-induced-luteal-maintenance
#10
Maria R Rebordão, António Galvão, Pedro Pinto-Bravo, Joana Pinheiro, Sandra Gamboa, Elisabete Silva, Luísa Mateus, Graça Ferreira-Dias
Oxytocin (OXT) has been used to prolong the luteal phase in mares, but its mechanism of action is unknown. The aim of this study was to evaluate the effect of chronic exogenous OXT administration to mid-luteal phase mares on luteal maintenance. Also, endometrial expression of prostaglandin endoperoxide synthase 2 (PTGS2), prostaglandin F2α, E2 and I2 synthases (AKR1C3, PTGES, and PTGIS), oxytocin receptor (OXTR), progesterone receptor (PGR), and estrogen receptors 1 (ESR1) and 2 (ESR2) were assessed in mares experiencing luteal maintenance 2 weeks after chronic exogenous OXT administration...
September 8, 2016: Theriogenology
https://www.readbyqxmd.com/read/27755497/association-between-the-estrogen-receptor-beta-esr2-rs1256120-single-nucleotide-polymorphism-and-adolescent-idiopathic-scoliosis-a-systematic-review-and-meta-analysis
#11
Linlu Zhao, Darren M Roffey, Suzan Chen
STUDY DESIGN: Systematic review and meta-analysis. OBJECTIVE: To assess and synthesize the current evidence on the association between the rs1256120 single nucleotide polymorphism (SNP) of the estrogen receptor beta gene (ESR2) and adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Hormonal disturbance has been postulated as a potential etiological factor in the development of AIS. As estrogen receptors are important mediators of estrogen response, mutations in these genes, including rs1256120 of ESR2, have been chosen as susceptibility candidates for AIS predisposition...
October 17, 2016: Spine
https://www.readbyqxmd.com/read/27754803/familial-multiplicity-of-estrogen-insensitivity-associated-with-a-loss-of-function-esr1-mutation
#12
Valérie Bernard, Sakina Kherra, Bruno Francou, Jérôme Fagart, Say Viengchareun, Jérôme Guéchot, Asmahane Ladjouze, Anne Guiochon-Mantel, Kenneth S Korach, Nadine Binart, Marc Lombès, Sophie Christin-Maitre
CONTEXT: Estrogens influence many physiological processes in mammals, including reproduction. Estrogen peripheral actions are mainly mediated through estrogen receptors (ER) α and β, encoded by ESR1 and ESR2 genes, respectively. OBJECTIVE: To describe a family in which three members presented with estrogen insensitivity. DESIGN AND SETTING: Clinical evaluation, genetic and mutational analysis were performed in an academic medical center...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27737359/analysis-of-polymorphisms-in-interleukin-10-nos2a-and-esr2-genes-in-chronic-and-aggressive-periodontitis
#13
Virginia Régia Souza Silveira, Suzane Cristina Pigossi, Raquel Mantuaneli Scarel-Caminaga, Joni Augusto Cirelli, Rodrigo Rêgo, Nádia Accioly Pinto Nogueira
The objective of this study was to investigate the association between single nucleotide polymorphisms (SNPs) in the IL10, NOS2A, and ESR2 genes and chronic periodontitis (CP) and aggressive periodontitis (AgP). Three groups of patients underwent periodontal and radiographic evaluations: CP (n = 61), AgP (n = 50), and periodontally healthy (control group=61). Genomic DNA was extracted from oral epithelial cells and used for genotyping by real-time polymerase chain reaction using TaqMan® probes. The investigated SNPs were: -1087G > A, -819C > T and -592C > A in the IL10; +2087G > A in the NOS2A, and +1730G > A in the ESR2 gene...
October 10, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27722841/integrated-analysis-of-gene-expression-and-methylation-profiles-of-48-candidate-genes-in-breast-cancer-patients
#14
Zibo Li, Jianfu Heng, Jinhua Yan, Xinwu Guo, Lili Tang, Ming Chen, Limin Peng, Yepeng Wu, Shouman Wang, Zhi Xiao, Zhongping Deng, Lizhong Dai, Jun Wang
PURPOSE: Gene-specific methylation and expression have shown biological and clinical importance for breast cancer diagnosis and prognosis. Integrated analysis of gene methylation and gene expression may identify genes associated with biology mechanism and clinical outcome of breast cancer and aid in clinical management. METHODS: Using high-throughput microfluidic quantitative PCR, we analyzed the expression profiles of 48 candidate genes in 96 Chinese breast cancer patients and investigated their correlation with gene methylation and associations with breast cancer clinical parameters...
November 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27673555/excess-testosterone-exposure-alters-hypothalamic-pituitary-testicular-axis-dynamics-and-gene-expression-in-sheep-fetuses
#15
Charles E Roselli, Rebecka Amodei, Kyle P Gribbin, Keely Corder, Fred Stormshak, Charles T Estill
Prenatal exposure to excess androgen may result in impaired adult fertility in a variety of mammalian species. However, little is known about what feedback mechanisms regulate gonadotropin secretion during early gestation and how they respond to excess T exposure. The objective of this study was to determine the effect of exogenous exposure to T on key genes that regulate gonadotropin and GnRH secretion in fetal male lambs as compared with female cohorts. We found that biweekly maternal testosterone propionate (100 mg) treatment administered from day 30 to day 58 of gestation acutely decreased (P < ...
November 2016: Endocrinology
https://www.readbyqxmd.com/read/27641676/progesterone-estrogen-and-androgen-receptors-in-the-corpus-luteum-of-the-domestic-cat-iberian-lynx-lynx-pardinus-and-eurasian-lynx-lynx-lynx
#16
Olga Amelkina, Lina Zschockelt, Johanna Painer, Rodrigo Serra, Francisco Villaespesa, Eberhard Krause, Katarina Jewgenow, Beate C Braun
In contrast to the species studied, the corpus luteum (CL) of Iberian and Eurasian lynx physiologically persists in the ovary for more than 2 years and continues to secrete progesterone. Such persistent CL (perCL) transition into the next cycle and are present in the ovary together with the freshly formed CL (frCL) of a new ovulation. To date, the mechanisms supporting such CL persistence are not known. We analyzed the potential receptivity of feline CL to sex steroids through mRNA measurements of progesterone receptor (PGR), progesterone receptor membrane components (PGRMC) 1 and 2, estrogen receptor (ESR) 1 and ESR2, G protein-coupled estrogen receptor 1 (GPER1), and androgen receptor (AR)...
July 5, 2016: Theriogenology
https://www.readbyqxmd.com/read/27629499/estrogen-receptor-beta-polymorphisms-and-cognitive-performance-in-women-associations-and-modifications-by-genetic-and-environmental-influences
#17
Karin Fehsel, Tamara Schikowski, Michaela Jänner, Anke Hüls, Mohammed Voussoughi, Thomas Schulte, Andrea Vierkötter, Tom Teichert, Christian Herder, Dorothea Sugiri, Ursula Krämer, Christian Luckhaus
Genetic and environmental risk factors contribute to the pathogenesis of Alzheimer's dementia. Besides known genetic risk factors like the apolipoprotein (APO) Eε4 allele, single nuclear polymorphisms (SNPs) of the estrogen receptors (ESRs) are candidate genetic risk factors, while air pollution represents an environmental risk factor for dementia. Effects of these risk factors and their interaction were investigated in the SALIA cohort of 834 non-demented elderly women. Cognitive function was assessed by the CERAD-plus test battery...
December 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/27535957/developmental-toxicant-exposure-is-associated-with-transgenerational-adenomyosis-in-a-murine-model
#18
Kaylon L Bruner-Tran, Antoni J Duleba, Hugh S Taylor, Kevin G Osteen
The common environmental toxicant, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD or, commonly, dioxin) is a known endocrine disruptor that has been linked to the development of endometriosis in experimental models. Using a murine model, we previously demonstrated that in utero TCDD exposure promotes the transgenerational development of an "endometriosis-like" uterine phenotype consisting of reduced responsiveness to progesterone, subfertility and an increased risk of preterm birth. Since adenomyosis is frequently observed as a comorbidity in women with endometriosis, herein, we sought to determine the incidence of adenomyosis in non-pregnant mice with a history of direct or indirect TCDD exposure...
August 17, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/27512003/pituitary-galaninergic-system-activity-in-female-rats-the-regulatory-role-of-gonadal-steroids
#19
A Gajewska, M Zielinska-Gorska, E Wasilewska-Dziubinska, M Baran, G Kotarba, K Gorski
The well-recognized sensitivity of the galanin gene in the anterior pituitary gland to estrogen suggests that estrogen receptor activity may influence the galaninergic system through modulation of galanin receptor (GALR) gene expression. Here, we evaluated the following: (i) the effects of estrogen on GALR mRNA expression; (ii) the estrogen receptor subtype that is specifically involved in this activity; and (iii) the effects of progesterone in the absence or presence of estrogen on galanin concentration in anterior pituitary gland...
June 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/27491559/neo-tanshinlactone-selectively-inhibits-the-proliferation-of-estrogen-receptor-positive-breast-cancer-cells-through-transcriptional-down-regulation-of-estrogen-receptor-alpha
#20
Wanjun Lin, Jiajun Huang, Xiaolin Liao, Zhongwen Yuan, Senling Feng, Ying Xie, Wenzhe Ma
Breast cancer, the most frequent cancer in women, is the second leading cause of cancer-related death. Estrogens and estrogen receptors are well recognized to play predominant roles in breast cancer development and growth. Neo-tanshinlactone is a natural product isolated from Salvia miltiorrhiza and showed selective growth inhibition of ER+ breast cancer cell lines as demonstrated by cell proliferation assay and colony formation assay. The selective anti-proliferative effect of neo-tanshinlactone was associated with the induction of apoptosis in ER+ breast cancer cells...
September 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
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