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https://www.readbyqxmd.com/read/28235236/pvt1-derived-mir-1207-5p-promotes-breast-cancer-cell-growth-by-targeting-stat6
#1
Chen Yan, Yaqing Chen, Wewei Kong, Liya Fu, Yunde Liu, Qingjuan Yao, Yuhua Yuan
Accumulating evidences indicate ectopic expression of noncoding RNAs are responsible for breast cancer progression. Increased non-coding RNA PVT1, the host gene of microRNA-1207-5p (miR-1207-5p), has been associated with breast cancer proliferation. However, how PVT1 functions in breast cancer is still not clear. In this study, we show a PVT1 derived microRNA, miR-1207-5p, which promotes the proliferation of breast cancer cells by directly regulating STAT6. We first confirm the positive correlated expression pattern between PVT1 and miR-1207-5p by observing consistent induced expression by estrogen, and overexpression in breast cancer cell lines and breast cancer patient specimens...
February 24, 2017: Cancer Science
https://www.readbyqxmd.com/read/28235149/transient-receptor-potential-vanilloid-5-trpv5-a-highly-ca-2-selective-trp-channel-in-the-rat-brain-relevance-to-neuroendocrine-regulation
#2
Santosh Kumar, Uday Singh, Chandan Goswami, Praful S Singru
Recent studies suggest an important role for transient receptor potential vanilloid (TRPV) ion channels in neural and neuroendocrine regulation. TRPV subfamily consists of six members viz. TRPV1-6. While the neuroanatomical and functional correlates of TRPV1-4 have been extensively studied, relevant information about TRPV5 and TRPV6, which are highly selective for Ca(2+) , is limited. We detected TRPV5 mRNA expression in the olfactory bulb, cortex, hypothalamus, hippocampus, midbrain, brainstem and cerebellum of rat...
February 24, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28234966/the-single-nucleotide-variant-rs12722489-determines-differential-estrogen-receptor-binding-and-enhancer-properties-of-an-il2ra-intronic-region
#3
Marina A Afanasyeva, Lidia V Putlyaeva, Denis E Demin, Ivan V Kulakovskiy, Ilya E Vorontsov, Marina V Fridman, Vsevolod J Makeev, Dmitry V Kuprash, Anton M Schwartz
We studied functional effect of rs12722489 single nucleotide polymorphism located in the first intron of human IL2RA gene on transcriptional regulation. This polymorphism is associated with multiple autoimmune conditions (rheumatoid arthritis, multiple sclerosis, Crohn's disease, and ulcerative colitis). Analysis in silico suggested significant difference in the affinity of estrogen receptor (ER) binding site between alternative allelic variants, with stronger predicted affinity for the risk (G) allele. Electrophoretic mobility shift assay showed that purified human ERα bound only G variant of a 32-bp genomic sequence containing rs12722489...
2017: PloS One
https://www.readbyqxmd.com/read/28233809/high-fat-diet-induces-unexpected-fatal-uterine-infections-in-mice-with-ap2-cre-mediated-deletion-of-estrogen-receptor-alpha
#4
Zsofia Ban, Paul Maurischat, Verena Benz, Sarah Brix, Anna Sonnenburg, Gerhard Schuler, Robert Klopfleisch, Michael Rothe, Jan-Åke Gustafsson, Anna Foryst-Ludwig, Ulrich Kintscher
Estrogen receptor alpha (ERα) is a major regulator of metabolic processes in obesity. In this study we aimed to define the relevance of adipose tissue ERα during high-fat diet (HFD)-induced obesity using female aP2-Cre(-/+)/ERα(fl/fl) mice (atERαKO). HFD did not affect body weight or glucose metabolism in atERαKO- compared to control mice. Surprisingly, HFD feeding markedly increased mortality in atERαKO mice associated with a destructive bacterial infection of the uterus driven by commensal microbes, an alteration likely explaining the absence of a metabolic phenotype in HFD-fed atERαKO mice...
February 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28233285/sebaceous-carcinoma-of-the-breast-a-case-report
#5
Yuta Yamamoto, Toshitsugu Nakamura, Hiroshi Koyama, Toshiharu Kanai, Suzuko Moritani, Shu Ichihara
BACKGROUND: Sebaceous carcinoma of the breast is a distinct variant of invasive ductal carcinoma. It is rare and only several cases have been reported. CASE PRESENTATION: An 80-year-old woman noted bloody discharge from her left nipple and palpated a lump in her left breast. Ultrasonography revealed a 19-mm mass in the left breast. Fine-needle aspiration suggested invasive ductal carcinoma. Partial mastectomy and sentinel lymph node biopsy were performed. On histological examination, the tumor revealed solid growth of small, round uniform cells with clear cytoplasm, partially intermingled with vacuolated cells indicative of sebaceous differentiation...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28232277/star-and-akr1b10-are-down-regulated-in-high-grade-endometrial-cancer
#6
Maša Sinreih, Saša Štupar, Luka Čemažar, Ivan Verdenik, Snježana Grazio-Frković, Špela Smrkolj, Tea Lanišnik Rižner
Endometrial cancer is the most frequent gynecological malignancy in the developed world. The majority of cases are estrogen dependent, and are associated with diminished protective effects of progesterone. Endometrial cancer is also related to enhanced inflammation and decreased differentiation. In our previous studies, we examined the expression of genes involved in estrogen and progesterone actions, in inflammation and tumor differentiation, in tissue samples from endometrial cancer and adjacent control endometrium...
February 20, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28231743/glycyrrhizae-radix-inhibits-osteoclast-differentiation-by-inhibiting-c-fos-dependent-nfatc1-expression
#7
Tae Won Rho, Seo Young Lee, Sang-Yong Han, Ji Hoon Kim, Kyung-Hee Lee, Dong-Seon Kim, Han Bok Kwak, Yun-Kyung Kim
Osteoporosis results from imbalance between new bone formation and bone resorption leading to bone loss and is especially troublesome for postmenopausal women who suffer from estrogen deficiency. The ability of new therapeutic agents to treat this bone disease with minimal side effects has been extensively reported on and is continuously being sought out by researchers in this field. Thus, the purpose of this study was to investigate a natural herb that was already being used as a new treatment for osteoporosis...
February 23, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28231739/lycium-chinense-improves-post-menopausal-obesity-via-regulation-of-ppar-%C3%AE-and-estrogen-receptor-%C3%AE-%C3%AE-expressions
#8
Mi Hye Kim, Eun-Jung Kim, You Yeon Choi, Jongki Hong, Woong Mo Yang
The fruit of Lycium chinense Miller (Solanaceae) is used as a functional food and a medicinal herb for treating many specific health concerns. Weight gain induced by estrogen deficiency is a problem for post-menopausal women around the globe. The present study investigates the effects of aqueous extract of L. chinense (LC) on post-menopausal obesity. Female C57BL/6 mice were ovariectomized and fed on high-fat diet (HFD) for 12 weeks to induce post-menopausal obesity. LC extract (1[Formula: see text]mg/kg and 10[Formula: see text]mg/kg) was orally administrated for 6 weeks with continuous HFD feeding...
February 23, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28231581/prognostic-markers-and-histologic-subtypes-in-patients-with-meningeal-carcinomatosis-in-breast-cancer
#9
Hussein Alnajar, Lauren Rosen, Sara Javidiparsijani, Yahya Al-Ghamdi, Paolo Gattuso
OBJECTIVE: Meningeal carcinomatosis (MC) is a rare complication in breast cancer patients. It is defined as a diffuse or multifocal leptomeningeal metastasis. STUDY DESIGN: From our institution database, we retrospectively studied 19 patients diagnosed with MC in the cerebrospinal fluid (CSF) in 1997-2015, in order to evaluate tumor prognostic markers, histologic subtypes, and clinical outcome. RESULTS: All patients were female, with a mean age of 53 years (range 36-75 years)...
February 24, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28231547/nonmonotonic-responses-to-low-doses-of-xenoestrogens-a-review
#10
REVIEW
Zhixiang Xu, Jun Liu, Xinhao Wu, Bin Huang, Xuejun Pan
Xenoestrogens (XEs) mimic or block the synthesis, metabolism and transport of normal endogenous hormones, disturbing normal endocrine function. The available data on the nonmonotonic estrogenic effects of low doses of many XEs are reviewed, covering in vitro, in vivo and epidemiological studies. The observed nonmonotonic patterns of the dose-response curves are discussed, along with possible underlying mechanisms. This review is intended to provide guidance for harm predication and to suggest prevention measures...
February 20, 2017: Environmental Research
https://www.readbyqxmd.com/read/28231379/tamoxifen-induced-radiation-recall-dermatitis-three-calls-from-egypt
#11
Eman Salah
Tamoxifen is a selective estrogen receptor modulator used for hormone receptor-positive breast cancer in addition to radiotherapy. Tamoxifen-induced radiation recall dermatitis (RRD) was 1(st) described in 1992 however only 7 cases have been reported(1) . Herein, we report 3 Egyptian patients with tamoxifen-induced RRD to highlight its diagnostic and therapeutic aspects. This article is protected by copyright. All rights reserved.
February 23, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28230907/estrogenic-suppression-of-binge-like-eating-elicited-by-cyclic-food-restriction-and-frustrative-nonreward-stress-in-female-rats
#12
Maria Vittoria Micioni Di Bonaventura, Thomas A Lutz, Adele Romano, Mariangela Pucci, Nori Geary, Lori Asarian, Carlo Cifani
Because binge eating and emotional eating vary through the menstrual cycle in human females, we investigated cyclic changes in binge-like eating in female rats and their control by estrogens. Binge-like eating was elicited by three cycles of 4 days of food restriction and 4 days of free feeding followed by a single frustrative nonreward-stress episode (15 min visual and olfactory exposure to a familiar palatable food) immediately before presentation of the palatable food. Intact rats showed binge-like eating during the diestrous and proestrous phases of the ovarian cycle, but not during the estrous (periovulatory) phase...
February 23, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28230329/integrating-trans-abdominal-ultrasonography-with-fecal-steroid-metabolite-monitoring-to-accurately-diagnose-pregnancy-and-predict-the-timing-of-parturition-in-the-red-panda-ailurus-fulgens-styani
#13
Erin Curry, Lissa J Browning, Paul Reinhart, Terri L Roth
Red pandas (Ailurus fulgens styani) exhibit a variable gestation length and may experience a pseudopregnancy indistinguishable from true pregnancy; therefore, it is not possible to deduce an individual's true pregnancy status and parturition date based on breeding dates or fecal progesterone excretion patterns alone. The goal of this study was to evaluate the use of transabdominal ultrasonography for pregnancy diagnosis in red pandas. Two to three females were monitored over 4 consecutive years, generating a total of seven profiles (four pregnancies, two pseudopregnancies, and one lost pregnancy)...
February 23, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28229217/foxo3-estrogen-receptor-alpha-and-androgen-receptor-impact-tumor-growth-rate-and-infiltration-of-dendritic-cell-subsets-differentially-between-male-and-female-mice
#14
Matthew G Thompson, Daniel S Peiffer, Michelle Larson, Flor Navarro, Stephanie K Watkins
Tumors evade immune recognition and destruction in many ways including the creation of an immune-suppressive tumor microenvironment (TME). Dendritic cells (DC) that infiltrate the TME are tolerogenic, and suppress effector T cells and anti-tumor activity. Previous reports demonstrated that a key regulator of tolerance in DC is the transcription factor FOXO3. Gender disparity has been studied in cancer in relation to incidence, aggressiveness, and prognosis. Few studies have touched on the importance in relation to impact on the immune system...
February 22, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28228354/effect-of-tamoxifen-on-spermatogenesis-and-testicular-steroidogenesis
#15
Rachna Verma, Amitabh Krishna
The aim of this study was to evaluate the effects of in vivo and in vitro treatments with selective estrogen receptor modulator (SERM), tamoxifen on testicular functions. The testis treated with tamoxifen, in vivo or in vitro, showed dose-dependent regressive changes in spermatogenesis. This study showed that the decreased estrogenic effect due to tamoxifen may be directly responsible for decreased testicular expression of aromatase, which in turn may be responsible for decreased synthesis of estradiol in the testis...
February 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28228232/hormone-receptor-expression-profile-of-low-grade-serous-ovarian-cancers
#16
Marianna Buttarelli, Floriana Mascilini, Gian Franco Zannoni, Alessandra Ciucci, Enrica Martinelli, Flavia Filippetti, Giovanni Scambia, Gabriella Ferrandina, Daniela Gallo
OBJECTIVE: Low-grade serous ovarian carcinomas (LGSOCs) are a histological subtype of epithelial ovarian tumors, accounting for fewer than 5% of all cases of ovarian carcinoma. Due to the chemoresistant nature of this subtype a search for more effective systemic therapies is actively ongoing, hormonal therapy showing some degree of activity in this clinical setting. The present study ought to investigate the hormone receptor status of LGSOCs, as a strategy to provide molecular support for patient-tailored hormonal treatments...
February 20, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28227003/automated-segmentation-and-classification-of-cell-nuclei-in-immunohistochemical-breast-cancer-images-with-estrogen-receptor-marker
#17
Julio Oscanoa, Franco Doimi, Richard Dyer, Jhahaira Araujo, Joseph Pinto, Benjamin Castaneda, Julio Oscanoa, Franco Doimi, Richard Dyer, Jhahaira Araujo, Joseph Pinto, Benjamin Castaneda, Jhahaira Araujo, Franco Doimi, Julio Oscanoa, Richard Dyer, Benjamin Castaneda, Joseph Pinto
Breast cancer is the most common malignant tumor in women worldwide. In recent years, there has been an increasing use of immunohistochemistry (the process of detecting the expression of certain proteins in cytological images) to obtain useful information for diagnosis. This paper presents an efficient algorithm that automatically detects breast cancer cell nuclei and divides them into two groups: those that express the ER marker and those that do not. First, the areas that belong to the carcinoma are automatically identified...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226203/characteristic-changes-in-decidual-gene-expression-signature-in-spontaneous-term-parturition
#18
Haidy El-Azzamy, Andrea Balogh, Roberto Romero, Yi Xu, Christopher LaJeunesse, Olesya Plazyo, Zhonghui Xu, Theodore G Price, Zhong Dong, Adi L Tarca, Zoltan Papp, Sonia S Hassan, Tinnakorn Chaiworapongsa, Chong Jai Kim, Nardhy Gomez-Lopez, Nandor Gabor Than
Background: The decidua has been implicated in the "terminal pathway" of human term parturition, which is characterized by the activation of pro-inflammatory pathways in gestational tissues. However, the transcriptomic changes in the decidua leading to terminal pathway activation have not been systematically explored. This study aimed to compare the decidual expression of developmental signaling and inflammation-related genes before and after spontaneous term labor in order to reveal their involvement in this process...
February 22, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28225892/regulation-of-semaphorin-4d-expression-and-cell-proliferation-of-ovarian-cancer-by-eralpha-and-erbeta
#19
Y Liu, Y Hou, L Ma, C Sun, J Pan, Y Yang, H Zhou, J Zhang
Ovarian cancer is one of the most common malignancies in women. Semaphorin 4D (sema 4D) is involved in the progress of multiple cancers. In the presence of estrogen-like ligands, estrogen receptors (ERα and ERβ) participate in the progress of breast and ovarian cancers by transcriptional regulation. The aim of the study was to investigate the role of sema 4D and elucidate the regulatory pattern of ERα and ERβ on sema 4D expression in ovarian cancers. Sema 4D levels were up-regulated in ovarian cancer SKOV-3 cells...
February 20, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28225786/female-reproductive-factors-are-associated-with-objectively-measured-physical-activity-in-middle-aged-women
#20
Eija K Laakkonen, Janne Kulmala, Pauliina Aukee, Harto Hakonen, Urho M Kujala, Dawn A Lowe, Vuokko Kovanen, Tuija Tammelin, Sarianna Sipilä
Physical activity improves health and may delay the onset of several chronic diseases. For women in particular, the rate of these diseases accelerates at middle age; therefore it is important to identify the determinants of health-enhancing physical activity during midlife in this population. In this study, we focused on determinants that are unique to the female sex, such as childbearing and menopause. The main objective was to characterize the level of physical activity and differences between active and inactive middle-aged Finnish women...
2017: PloS One
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