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https://www.readbyqxmd.com/read/29322921/tensor-decomposition-based-unsupervised-feature-extraction-identifies-candidate-genes-that-induce-post-traumatic-stress-disorder-mediated-heart-diseases
#1
Y-H Taguchi
BACKGROUND: Although post-traumatic stress disorder (PTSD) is primarily a mental disorder, it can cause additional symptoms that do not seem to be directly related to the central nervous system, which PTSD is assumed to directly affect. PTSD-mediated heart diseases are some of such secondary disorders. In spite of the significant correlations between PTSD and heart diseases, spatial separation between the heart and brain (where PTSD is primarily active) prevents researchers from elucidating the mechanisms that bridge the two disorders...
December 21, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/29320918/the-rs1256044-polymorphism-in-the-esr2-gene-and-the-risk-for-osteoporosis-in-polish-postmenopausal-women
#2
Adam Kamiński, Anna Bogacz, Bogusław Czerny
Population association studies have demonstrated a strong association between ESR2 SNPs and BMD, indicating that ESR2 may influence attainment of bone mass. The aim of the study was to investigate the ESR2 gene, located on chromosome 14q linked with BMD, which demonstrates a correlation with changes in bone mass in healthy Caucasian women. The study included 675 unrelated Polish postmenopausal women, including 109 with osteopenia, 333 with osteoporosis and 233 healthy women. The women were classified into the following groups: osteopenia, osteoporosis and normal T-score...
January 11, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29301444/the-search-of-car-ahr-esrs-binding-sites-in-promoters-of-intronic-and-intergenic-micrornas
#3
Vladimir Y Ovchinnikov, Denis V Antonets, Lyudmila F Gulyaeva
MicroRNAs (miRNAs) play important roles in the regulation of gene expression at the post-transcriptional level. Many exogenous compounds or xenobiotics may affect microRNA expression. It is a well-established fact that xenobiotics with planar structure like TCDD, benzo(a)pyrene (BP) can bind aryl hydrocarbon receptor (AhR) followed by its nuclear translocation and transcriptional activation of target genes. Another chemically diverse group of xenobiotics including phenobarbital, DDT, can activate the nuclear receptor CAR and in some cases estrogen receptors ESR1 and ESR2...
December 10, 2017: Journal of Bioinformatics and Computational Biology
https://www.readbyqxmd.com/read/29261182/biallelic-and-monoallelic-esr2-variants-associated-with-46-xy-disorders-of-sex-development
#4
Dorien Baetens, Tülay Güran, Berenice B Mendonca, Nathalia L Gomes, Lode De Cauwer, Frank Peelman, Hannah Verdin, Marnik Vuylsteke, Malaïka Van der Linden, Hans Stoop, Leendert H Looijenga, Karolien De Bosscher, Martine Cools, Elfride De Baere
PurposeDisorders or differences of sex development (DSDs) are rare congenital conditions characterized by atypical sex development. Despite advances in genomic technologies, the molecular cause remains unknown in 50% of cases.MethodsHomozygosity mapping and whole-exome sequencing revealed an ESR2 variant in an individual with syndromic 46,XY DSD. Additional cases with 46,XY DSD underwent whole-exome sequencing and targeted next-generation sequencing of ESR2. Functional characterization of the identified variants included luciferase assays and protein structure analysis...
October 26, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29249638/androgen-receptor-overexpression-in-prostate-cancer-in-type-2-diabetes
#5
Stefan Zoltán Lutz, Jörg Hennenlotter, Marcus Oliver Scharpf, Corinna Sailer, Louise Fritsche, Vera Schmid, Konstantinos Kantartzis, Robert Wagner, Rainer Lehmann, Lucia Berti, Andreas Peter, Harald Staiger, Andreas Fritsche, Falko Fend, Tilman Todenhöfer, Arnulf Stenzl, Hans-Ulrich Häring, Martin Heni
OBJECTIVE: While prostate cancer does not occur more often in men with diabetes, survival is markedly reduced in this patient group. Androgen signaling is a known and major driver for prostate cancer progression. Therefore, we analyzed major components of the androgen signaling chain and cell proliferation in relation to type 2 diabetes. METHODS: Tumor content of 70 prostate tissue samples of men with type 2 diabetes and 59 samples of patients without diabetes was quantified by an experienced pathologist, and a subset of 51 samples was immunohistochemically stained for androgen receptor (AR)...
December 5, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29228205/associations-between-polymorphisms-in-genes-related-to-estrogen-metabolism-and-function-and-prostate-cancer-risk-results-from-the-prostate-cancer-prevention-trial
#6
Li Tang, Mary E Platek, Song Yao, Cathee Till, Phyllis J Goodman, Catherine M Tangen, Yue Wu, Elizabeth A Platz, Marian L Neuhouser, Frank Z Stanczyk, Juergen K V Reichardt, Regina M Santella, Ann Hsing, William D Figg, Scott M Lippman, Ian M Thompson, Christine B Ambrosone
Substantial preclinical data suggest estrogen's carcinogenic role in prostate cancer development; however, epidemiological evidence based on circulating estrogen levels is largely null. Compared with circulating estrogen, the intraprostatic estrogen milieu may play a more important role in prostate carcinogenesis. Using a nested case-control design in the Prostate Cancer Prevention Trial (PCPT), we examined associations of genetic variants of genes that are involved in estrogen synthesis, metabolism and function with prostate cancer risk...
December 8, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29206944/the-direct-and-indirect-effects-of-kisspeptin-54-on-granulosa-lutein-cell-function
#7
L A Owens, A Abbara, A Lerner, S O'floinn, G Christopoulos, S Khanjani, R Islam, K Hardy, A C Hanyaloglu, S A Lavery, W S Dhillo, S Franks
STUDY QUESTION: What are the in vivo and in vitro actions of kisspeptin-54 on the expression of genes involved in ovarian reproductive function, steroidogenesis and ovarian hyperstimulation syndrome (OHSS) in granulosa lutein (GL) cells when compared with traditional triggers of oocyte maturation? SUMMARY ANSWER: The use of kisspeptin-54 as an oocyte maturation trigger augmented expression of genes involved in ovarian steroidogenesis in human GL cells including, FSH receptor (FSHR), LH/hCG receptor (LHCGR), steroid acute regulatory protein (STAR), aromatase, estrogen receptors alpha and beta (ESR1, ESR2), 3-beta-hydroxysteroid dehydrogenase type 2 (3BHSD2) and inhibin A (INHBA), when compared to traditional maturation triggers, but did not alter markers of OHSS...
December 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29206234/markers-of-epithelial-to-mesenchymal-transition-reflect-tumor-biology-according-to-patient-age-and-gleason-score-in-prostate-cancer
#8
Dorota Jędroszka, Magdalena Orzechowska, Raneem Hamouz, Karolina Górniak, Andrzej K Bednarek
INTRODUCTION: Prostate carcinoma (PRAD) is one of the most frequently diagnosed malignancies amongst men worldwide. It is well-known that androgen receptor (AR) plays a pivotal role in a vast majority of prostate tumors. However, recent evidence emerged stating that estrogen receptors (ERs) may also contribute to prostate tumor development. Moreover, progression and aggressiveness of prostate cancer may be associated with differential expression genes of epithelial-to-mesenchymal transition (EMT)...
2017: PloS One
https://www.readbyqxmd.com/read/29151946/gene-expression-profiling-reveals-novel-candidate-markers-of-ovarian-carcinoma-intraperitoneal-metastasis
#9
Katerina Elsnerova, Alena Bartakova, Josef Tihlarik, Jiri Bouda, Lukas Rob, Petr Skapa, Martin Hruda, Ivan Gut, Beatrice Mohelnikova-Duchonova, Pavel Soucek, Radka Vaclavikova
Epithelial ovarian cancer (EOC) has the highest mortality among gynecological carcinomas. The lack of specific markers for prognostic determination of EOC progression hinders the search for novel effective therapies. The aim of the present study was (i) to explore differences in expressions of ATP-binding cassette (ABC) and solute carrier (SLC) transporter genes, genes associated with drug metabolism and cell cycle regulation between control ovarian tissues (n = 14), primary EOCs (n = 44) and intraperitoneal metastases (n = 29); (ii) to investigate associations of gene expression levels with prognosis of patients with intraperitoneal metastases...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29145706/expression-of-oestrogen-receptors-gper-esr1-esr2-in-human-ductuli-efferentes-and-proximal-epididymis
#10
V Rago, F Romeo, F Giordano, R Malivindi, V Pezzi, I Casaburi, A Carpino
Oestrogen targeting in the human genital ducts is still not well-known. In fact, to date, the localization of oestrogen receptors, ESR1 and ESR2, is controversial and the presence of the membrane oestrogen receptor GPER (G protein-coupled oestrogen receptor) is unexplored. This study has investigated the expression of GPER, ESR1, ESR2 in human ductuli efferentes and proximal caput epididymis by immunohistochemistry and Western blot analysis. Furthermore, the presence of PELP1 (proline-glutamic acid-leucine-rich protein 1), a co-regulator of the oestrogen receptors, was also evaluated...
November 16, 2017: Andrology
https://www.readbyqxmd.com/read/29126187/med12-regulates-ovarian-steroidogenesis-uterine-development-and-maternal-effects-in-the-mammalian-egg
#11
Xinye Wang, Priya Mittal, Carlos A Castro, Gabriel Rajkovic, Aleksandar Rajkovic
The transcriptional factor MED12 is part of the essential mediator transcriptional complex that acts as a transcriptional coactivator in all eukaryotes. Missense gain of function mutations in human MED12 are associated with uterine leiomyomas, yet the role of MED12 deficiency in tumorigenesis and reproductive biology has not been fully explored. We generated a Med12 reproductive conditional knockout mouse model to evaluate its role in uterine mesenchyme, granulosa cells, and oocytes. Mice heterozygous for Med12 deficiency in granulosa cells and uterus (Med12fl/+ Amhr2-Cre) were subfertile, while mice homozygous for Med12 deficiency in granulosa cells and uterus (Med12fl/fl Amhr2-Cre) were infertile...
November 8, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29123539/the-ap2-erf-transcription-factor-drnl-modulates-gynoecium-development-and-affects-its-response-to-cytokinin
#12
Yolanda Durán-Medina, Joanna Serwatowska, J Irepan Reyes-Olalde, Stefan de Folter, Nayelli Marsch-Martínez
The gynoecium is the female reproductive system in flowering plants. It is a complex structure formed by different tissues, some that are essential for reproduction and others that facilitate the fertilization process and nurture and protect the developing seeds. The coordinated development of these different tissues during the formation of the gynoecium is important for reproductive success. Both hormones and genetic regulators guide the development of the different tissues. Auxin and cytokinin in particular have been found to play important roles in this process...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29118976/impact-of-hormonal-modulation-at-proestrus-on-ovarian-responses-and-uterine-gene-expression-of-suckled-anestrous-beef-cows
#13
Manoel Francisco de Sá Filho, Angela Maria Gonella-Diaza, Mariana Sponchiado, Marcio Ferreira Mendanha, Guilherme Pugliesi, Roney Dos Santos Ramos, Sónia Cristina da Silva Andrade, Gustavo Gasparin, Luiz Lehmann Coutinho, Marcelo Demarchi Goissis, Fernando Silveira Mesquita, Pietro Sampaio Baruselli, Mario Binelli
Background: This study evaluated the impact of hormonal modulation at the onset of proestrus on ovarian response and uterine gene expression of beef cows. Methods: A total of 172 anestrous beef cows were assigned to one of four groups according to the treatment with estradiol cypionate (ECP) and/or equine chorionic gonadotropin (eCG) [CON (n = 43), ECP (n = 43), eCG (n = 44) and ECP + eCG (n = 42)]. Results: ECP-treated cows (ECP and ECP + eCG groups) presented greater occurrence of estrus (44...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29117942/er%C3%AE-sensitizes-nsclc-to-chemotherapy-by-regulating-dna-damage-response
#14
Fotis Nikolos, Christoforos Thomas, Igor Bado, Jan-Ake Gustafsson
The expression of wild-type estrogen receptor β (ESR2/ERβ1) correlates with clinical outcome in patients with Non-Small Cell Lung Cancer (NSCLC). However, the molecular mechanism that accounts for this association is currently poorly understood. ERβ1 was previously linked to chemotherapy response in patients with breast cancer and in breast cancer cells. The effect of the receptor in NSCLC cells after chemotherapy treatment, a common remedy for advanced NSCLC, has not been studied. Here, upregulation of ERβ1 increases the sensitivity of NSCLC cells to treatment with doxorubicin and etoposide...
November 8, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29115049/generation-and-characterization-of-an-estrogen-receptor-alpha-icre-knock-in-mouse
#15
Chan Jin Park, Guanglin Chen, Yongbum Koo, Po-Ching P Lin, Joseph A Cacioppo, Hailey Prohaska, CheMyong J Ko
Two estrogen receptors, ESR1 and ESR2, are responsible for the classical actions of estrogens in mammalian species. They display different spatiotemporal expression patterns and non-overlapping functions in various tissues and physiological conditions. In this study, a novel knock-in mouse line that expresses codon-improved Cre recombinase (iCre) under regulation of the natural Esr1 promoter (Esr1-iCre) was developed. Functional characterization of iCre expression by crossing them with reporter lines (ROSA26-lacZ or Ai9-RFP) showed that iCre is faithfully expressed in Esr1-lineage cells...
November 8, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/29108778/the-timing-and-duration-of-estradiol-treatment-in-a-rat-model-of-the-perimenopause-influences-on-social-behavior-and-the-neuromolecular-phenotype
#16
Alexandra N Garcia, Christina Depena, Kelsey Bezner, Weiling Yin, Andrea C Gore
This study tested the effects of timing and duration of estradiol (E2) treatment, factors that are clinically relevant to hormone replacement in perimenopausal women, on social behavior and expression of genes in brain regions that regulate these behaviors. Female rats were ovariectomized (OVX) at 1year of age, roughly equivalent to middle-age in women, and given E2 or vehicle for different durations (3 or 6months) and timing (immediately or after a 3-month delay) relative to OVX. Social and ultrasonic vocalization (USV) behaviors were assessed at the 3 and 6month timepoints, and the rats' brains were then used for gene expression profiling in hypothalamus (supraoptic nucleus, paraventricular nucleus), bed nucleus of the stria terminalis, medial amygdala, and prefrontal cortex using a 48-gene qPCR platform...
November 8, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/29102591/hippocampal-gene-expression-patterns-in-oxytocin-male-knockout-mice-are-related-to-impaired-social-interaction
#17
Virginia Meneghini Lazzari, Josi Maria Zimmermann-Peruzatto, Grasiela Agnes, Roberta Oriques Becker, Ana Carolina de Moura, Silvana Almeida, Renata Padilha Guedes, Marcia Giovenardi
Social interaction between animals is crucial for the survival and life in groups. It is well demonstrated that oxytocin (OT) and vasopressin (AVP) play critical roles in the regulation of social behaviors in mammals, however, other neurotransmitters and hormones are involved in the brain circuitry related to these behaviors. The present study aimed to investigate the gene expression of neurotransmitter receptors in the brain of OT knockout (OTKO) male mice. In this study, we evaluated the expression levels of the OT receptor (Oxtr), AVP receptors 1a and 1b (Avpr1a; Avpr1b), dopamine receptor 2 (Drd2), and the estrogen receptors alpha and beta (Esr1; Esr2) genes in the hippocampus (HPC), olfactory bulb (OB), hypothalamus (HPT) and prefrontal cortex (PFC)...
November 1, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29100665/sex-steroid-receptors-prostaglandin-e2-receptors-and-cyclooxygenase-in-the-equine-cervix-during-estrus-diestrus-and-pregnancy-gene-expression-and-cellular-localization
#18
Claudia B Fernandes, Shavahn C Loux, Kirsten E Scoggin, Edward L Squires, Mats H Troedsson, Alejandro Esteller-Vico, Barry A Ball
The cervix is a dynamic structure that undergoes dramatic changes during the estrous cycle, pregnancy and parturition. It is well established that hormonal changes, including estrogens, progestogens and prostaglandins, regulate the expression of key proteins involved in cervical function. The arachidonic acid cascade is important in the remodeling and relaxation of the cervix in the days preceding parturition. Despite the complexity of this mechanism, regulation of cervical function has received little study in the mare...
October 31, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29095075/suitable-reference-gene-selection-for-gene-expression-studies-in-knee-osteoarthritis-synovium-using-quantitative-pcr-analysis
#19
Hiroshi Watanabe, Hirotaka Ishii, Kenji Takahashi, Shinro Takai, Hitoshi Ozawa
Osteoarthritis (OA) is the leading cause of musculoskeletal disability in the elderly. Insights into the biological features of OA are obtained by characterization of the molecular features by gene expression profiling using reverse transcription-quantitative PCR (RT-qPCR). However, it has recently become evident that the use of suitable reference genes is required for appropriate normalization of this technique. Here total RNA was isolated from the synovium of 18 men and 20 women who underwent total knee arthroplasty for knee OA (KOA)...
November 2, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/29093337/bisphenol-af-as-an-inducer-of-estrogen-receptor-%C3%AE-er%C3%AE-evidence-for-anti-estrogenic-effects-at-higher-concentrations-in-human-breast-cancer-cells
#20
Hiroyuki Okazaki, Shuso Takeda, Kazuhiro Kakizoe, Aya Taniguchi, Miki Tokuyasu, Taichi Himeno, Hiroyuki Ishii, Eriko Kohro-Ikeda, Koichi Haraguchi, Kazuhito Watanabe, Hironori Aramaki
Bisphenols are endocrine disruptors that are widely found in the environment. Accumulating experimental evidence suggests an adverse interaction between bisphenols and estrogen signaling. Most studies have performed experiments that focused on estrogen receptor (ER) engagement by bisphenols. Therefore, the effects of bisphenols on the expression of ERα (ESR1) and ERβ (ESR2) remain largely unknown. In the present study, we examined the effects of four bisphenols: bisphenol A (BPA), bisphenol B (BPB), bisphenol S (BPS), and bisphenol AF (BPAF), on estrogen signaling in two human breast cancer cell lines (MCF-7 and SK-BR-3)...
2017: Biological & Pharmaceutical Bulletin
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