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https://www.readbyqxmd.com/read/28632729/radiation-associated-breast-cancer-and-gonadal-hormone-exposure-a-report-from-the-childhood-cancer-survivor-study
#1
Chaya S Moskowitz, Joanne F Chou, Charles A Sklar, Dana Barnea, Cécile M Ronckers, Danielle Novetsky Friedman, Joseph P Neglia, Lucie Turcotte, Rebecca M Howell, Tara O Henderson, Gregory T Armstrong, Wendy M Leisenring, Leslie L Robison, Flora E van Leeuwen, Malcolm C Pike, Kevin C Oeffinger
BACKGROUND: The relationship between hormone exposure and breast cancer risk in women treated with chest radiotherapy for childhood cancer is uncertain. METHODS: Participants included 1108 females from the Childhood Cancer Survivor Study who were diagnosed with childhood cancer 1970-1986, treated with chest radiotherapy, and survived to ages ⩾20 years. Hazard ratios (HRs) and 95% confidence intervals (CIs) from Cox models adjusted for chest radiation field, delivered dose, anthracycline exposure, and age at childhood cancer estimated risk...
June 20, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28630050/effectiveness-of-computer-aided-diagnosis-cadx-of-breast-pathology-using-immunohistochemistry-results-of-core-needle-biopsy-samples-for-synaptophysin-oestrogen-receptor-and-ck14-p63-for-classification-of-epithelial-proliferative-lesions-of-the-breast
#2
Ichiro Maeda, Manabu Kubota, Jiro Ohta, Kimika Shinno, Shinya Tajima, Yasushi Ariizumi, Masatomo Doi, Yoshiyasu Oana, Yoshihide Kanemaki, Koichiro Tsugawa, Takahiko Ueno, Masayuki Takagi
AIMS: The aim of this study was to develop a computer-aided diagnosis (CADx) system for identifying breast pathology. METHODS: Two sets of 100 consecutive core needle biopsy (CNB) specimens were collected for test and validation studies. All 200 CNB specimens were stained with antibodies targeting oestrogen receptor (ER), synaptophysin and CK14/p63. All stained slides were scanned in a whole-slide imaging system and photographed. The photographs were analysed using software to identify the proportions of tumour cells that were positive and negative for each marker...
June 19, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28620462/immunoprofiling-of-human-uterine-mast-cells-identifies-three-phenotypes-and-expression-of-er%C3%AE-and-glucocorticoid-receptor
#3
Bianca De Leo, Arantza Esnal-Zufiaurre, Frances Collins, Hilary O D Critchley, Philippa T K Saunders
Background: Human mast cells (MCs) are long-lived tissue-resident immune cells characterised by granules containing the proteases chymase and/or tryptase. Their phenotype is modulated by their tissue microenvironment. The human uterus has an outer muscular layer (the myometrium) surrounding the endometrium, both of which play an important role in supporting a pregnancy. The endometrium is a sex steroid target tissue consisting of epithelial cells (luminal, glandular) surrounded by a multicellular stroma, with the latter containing an extensive vascular compartment as well as fluctuating populations of immune cells that play an important role in regulating tissue function...
2017: F1000Research
https://www.readbyqxmd.com/read/28619467/-synthesis-and-binding-affinity-to-human-steroid-hormone-receptors-of-3-phenoxy-4-hydroxycoumarins-and-3-phenoxy-4-phenylcoumarins
#4
R Bakhchinian, F Bouchoux, S Kirkiacharian
The synthesis and the study of the binding affinity to human receptors of glucocorticoids, mineralcorticoids, androgens, estrogens and progesterone of 3-phenoxy-4-hydroxycoumarins and 3-phenoxy-4-phenylcoumarins were performed. It shows the absence of any binding affinity of all these derivatives to glucocorticoid and mineralcorticoid receptors and a non-selective binding affinity to androgen, oestrogen and progesterone receptors with 3-phenoxy-4-phényl-coumarins.
June 12, 2017: Annales Pharmaceutiques Françaises
https://www.readbyqxmd.com/read/28618895/silver-nanoparticles-inhaled-during-pregnancy-reach-and-affect-the-placenta-and-the-foetus
#5
Luisa Campagnolo, Micol Massimiani, Lucia Vecchione, Diletta Piccirilli, Nicola Toschi, Andrea Magrini, Elena Bonanno, Manuel Scimeca, Luca Castagnozzi, Giorgio Buonanno, Luca Stabile, Francesco Cubadda, Federica Aureli, Paul Hb Fokkens, Wolfgang G Kreyling, Flemming R Cassee, Antonio Pietroiusti
Recently, interest for the potential impact of consumer-relevant engineered nanoparticles on pregnancy has dramatically increased. This study investigates whether inhaled silver nanoparticles (AgNPs) reach and cross mouse placental barrier and induce adverse effects. Apart from their relevance for the growing use in consumer products and biomedical applications, AgNPs are selected since they can be unequivocally identified in tissues. Pregnant mouse females are exposed during the first 15 days of gestation by nose-only inhalation to a freshly produced aerosol of 18-20 nm AgNPs for either 1 or 4 hours, at a particle number concentration of 3...
June 16, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28615727/oestrogen-inhibits-arterial-calcification-by-promoting-autophagy
#6
Yi-Qun Peng, Dan Xiong, Xiao Lin, Rong-Rong Cui, Feng Xu, Jia-Yu Zhong, Ting Zhu, Feng Wu, Min-Zhi Mao, Xiao-Bo Liao, Ling-Qing Yuan
Arterial calcification is a major complication of cardiovascular disease. Oestrogen replacement therapy in postmenopausal women is associated with lower levels of coronary artery calcification, but its mechanism of action remains unclear. Here, we show that oestrogen inhibits the osteoblastic differentiation of vascular smooth muscle cells (VSMCs) in vitro and arterial calcification in vivo by promoting autophagy. Through electron microscopy, GFP-LC3 redistribution, and immunofluorescence analyses as well as measurement of the expression of the autophagosome marker light-chain I/II (LC3I/II) and autophagy protein 5 (Atg5), we show that autophagy is increased in VSMCs by oestrogen in vitro and in vivo...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615679/combination-of-rad001-everolimus-and-docetaxel-reduces-prostate-and-breast-cancer-cell-vegf-production-and-tumour-vascularisation-independently-of-sphingosine-kinase-1
#7
Heba Alshaker, Qi Wang, Torsten Böhler, Robert Mills, Mathias Winkler, Tawfiq Arafat, Yoshiaki Kawano, Dmitri Pchejetski
Resistance to docetaxel is a key problem in current prostate and breast cancer management. We have recently discovered a new molecular mechanism of prostate cancer docetaxel chemoresistance mediated by the mammalian target of rapamycin (mTOR)/sphingosine-kinase-1 (SK1) pathway. Here we investigated the influence of this pathway on vascular endothelial growth factor (VEGF) production and tumour vascularisation in hormone resistant prostate and breast cancer models. Immunofluorescent staining of tumour sections from human oestrogen receptor (ER)-negative breast cancer patients showed a strong correlation between phosphorylated P70S6 kinase (mTOR downstream target), VEGF and SK1 protein expression...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615185/hormone-replacement-treatment-choices-in-complete-androgen-insensitivity-syndrome-an-audit-of-an-adult-clinic
#8
Jennifer K Y Ko, Thomas F J King, Louise Williams, Sarah M Creighton, Gerard S Conway
OBJECTIVE: To review the treatment choices of women with Complete Androgen Insensitivity Syndrome (CAIS) at a single tertiary centre. DESIGN: Retrospective review Patients: Women with CAIS identified from our database. RESULTS: The study group comprised 141 women with CAIS. Eleven percent of women had gonads in situ, 3 of which were under workup for gonadectomy. The age of gonadectomy in the remainder was 17 (0.1-53) years old. The most common form of HRT was oral oestrogen or transdermal oestrogen in 80%...
June 14, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28614293/histone-deacetylase-3-prepares-brown-adipose-tissue-for-acute-thermogenic-challenge
#9
Matthew J Emmett, Hee-Woong Lim, Jennifer Jager, Hannah J Richter, Marine Adlanmerini, Lindsey C Peed, Erika R Briggs, David J Steger, Tao Ma, Carrie A Sims, Joseph A Baur, Liming Pei, Kyoung-Jae Won, Patrick Seale, Zachary Gerhart-Hines, Mitchell A Lazar
Brown adipose tissue is a thermogenic organ that dissipates chemical energy as heat to protect animals against hypothermia and to counteract metabolic disease. However, the transcriptional mechanisms that determine the thermogenic capacity of brown adipose tissue before environmental cold are unknown. Here we show that histone deacetylase 3 (HDAC3) is required to activate brown adipose tissue enhancers to ensure thermogenic aptitude. Mice with brown adipose tissue-specific genetic ablation of HDAC3 become severely hypothermic and succumb to acute cold exposure...
June 14, 2017: Nature
https://www.readbyqxmd.com/read/28613390/autoihc-scoring-a-machine-learning-framework-for-automated-allred-scoring-of-molecular-expression-in-er-and-pr-stained-breast-cancer-tissue
#10
S Tewary, I Arun, R Ahmed, S Chatterjee, C Chakraborty
In prognostic evaluation of breast cancer Immunohistochemical (IHC) markers namely, oestrogen receptor (ER) and progesterone receptor (PR) are widely used. The expert pathologist investigates qualitatively the stained tissue slide under microscope to provide the Allred score; which is clinically used for therapeutic decision making. Such qualitative judgment is time-consuming, tedious and more often suffers from interobserver variability. As a result, it leads to imprecise IHC score for ER and PR. To overcome this, there is an urgent need of developing a reliable and efficient IHC quantifier for high throughput decision making...
June 14, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28613048/is-the-second-to-fourth-digit-ratio-2d-4d-a-biomarker-of-sex-steroids-activity
#11
Vincenzo de Sanctis, Ashraf T Soliman, Heba Elsedfy, Nada Soliman, Rania Elalaily, Salvatore Di Maio
The second-to-fourth digit ratio (2D:4D) has been used as an indirect method to investigate the putative effects of prenatal exposure to androgens, and has been reported to be smaller in males than in females. This gender difference in digit length ratios has been linked with the in utero balance of androgens to oestrogen. This sexual dimorphism in 2D:4D ratios is apparent by 2 years of age and seems to be established early in life, possibly by the 14th week of gestation. Digits in females attain their maximum length at about 2...
June 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28610651/increased-high-molecular-weight-adiponectin-but-decreased-total-adiponectin-and-kisspeptin-in-central-precocious-puberty-compared-with-aged-matched-prepubertal-girls
#12
Chantacha Sitticharoon, Maynart Sukharomana, Supawadee Likitmaskul, Malika Churintaraphan, Pailin Maikaew
The aim of the present study was to compare serum leptin, kisspeptin, total adiponectin, high molecular weight (HMW) adiponectin and neuropeptide Y (NPY) levels between girls with central precocious puberty (CPP; n=26, 7-9.5 years old) and age-matched controls (n=29) including or excluding obese girls. Leptin and NPY levels were comparable between CPP and control girls. Kisspeptin levels were lower in the CPP than control group, and were positively correlated with oestrogen in the control group and with systolic and diastolic blood pressure in the CPP group...
June 14, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28606221/dietary-inflammatory-index-before-diagnosis-and-survival-in-an-italian-cohort-of-women-with-breast-cancer
#13
Antonella Zucchetto, Diego Serraino, Nitin Shivappa, James R Hébert, Carmen Stocco, Antonella Puppo, Fabio Falcini, Chiara Panato, Luigino Dal Maso, Jerry Polesel
The dietary inflammatory indexTM (DII) has been shown to correlate with concentrations of several inflammatory markers and a variety of chronic disease endpoints, including cancers of various anatomic sites. We investigated whether the DII was associated with the risk for death among women with breast cancer (BrCa). This retrospective cohort study included 1453 women with BrCa, diagnosed between 1990 and 1994, and previously enrolled in a case-control study in northern Italy. With a median follow-up of 12·6 years, we observed 503 deaths, among which 398 were due to BrCa...
June 13, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28606019/low-plasma-pdgf-bb-levels-are-associated-with-estradiol-in-postmenopausal-osteoporosis
#14
Lanhua Tang, Zhuying Xia, Zhongwei Luo, Haitao Long, Yong Zhu, Shushan Zhao
Objective This study aimed to investigate the association between low plasma Platelet-derived growth factor-BB (PDGF-BB) levels and oestradiol in Postmenopausal osteoporosis (PMOP). Methods This prospective study measured plasma PDGF-BB and oestradiol levels in outpatients who were admitted to our hospital. Participants were screened and then allocated to three groups: normal young women, postmenopausal control, and PMOP. Additionally, Sprague-Dawley rats underwent either sham surgery or bilateral ovariectomy (OVX), and were divided into the following groups: sham, OVX, OVX + oestradiol, and OVX + PDGF-BB...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28601834/screening-for-cancer-in-patients-with-unprovoked-venous-thromboembolism-protocol-for-a-systematic-review-and-individual-patient-data-meta-analysis
#15
Nick van Es, Grégoire Le Gal, Hans-Martin Otten, Philippe Robin, Andrea Piccioli, Ramon Lécumberri, Luis Jara Palomares, Piotr Religa, Viriginie Rieu, Matthew T Rondina, Mariëlle M Beckers, Paolo Prandoni, Pierre-Yves Salaun, Marcello Di Nisio, Patrick M Bossuyt, Harry R Büller, Marc Carrier
INTRODUCTION: Occult cancer is present in 4%-9% of patients with unprovoked venous thromboembolism (VTE). Screening for cancer may be considered in these patients, with the aim to diagnose cancers in an early, potentially curable stage. Information is needed about the risk of occult cancer, overall and in specific subgroups, additional risk factors and on the performance of different screening strategies. METHODS AND ANALYSIS: MEDLINE, Embase and CENTRAL databases were searched from November 2007 to January 2016 for prospective studies that had evaluated protocol-mandated screening for cancer in patients with unprovoked VTE and with at least 12 months' follow-up...
June 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28595043/the-association-between-the-incidence-of-postmenopausal-breast-cancer-and-concentrations-at-street-level-of-nitrogen-dioxide-and-ultrafine-particles
#16
Mark S Goldberg, France Labrèche, Scott Weichenthal, Eric Lavigne, Marie-France Valois, Marianne Hatzopoulou, Keith Van Ryswyk, Maryam Shekarrizfard, Paul J Villeneuve, Daniel Crouse, Marie-Élise Parent
BACKGROUND: There is scant information as to whether traffic-related air pollution is associated with the incidence of breast cancer. Nitrogen dioxide (NO2) and ultrafine particles (UFPs, <0.1µm), are two pollutants that capture intra-urban variations in traffic-related air pollution and may also be associated with incidence. METHODS: We conducted a population-based, case-control study of street-level concentrations of NO2 and UFPs and incident postmenopausal breast cancer in Montreal, Canada...
June 5, 2017: Environmental Research
https://www.readbyqxmd.com/read/28592386/ct-p6-compared-with-reference-trastuzumab-for-her2-positive-breast-cancer-a-randomised-double-blind-active-controlled-phase-3-equivalence-trial
#17
Justin Stebbing, Yauheni Baranau, Valeriy Baryash, Alexey Manikhas, Vladimir Moiseyenko, Giorgi Dzagnidze, Edvard Zhavrid, Dmytro Boliukh, Daniil Stroyakovskii, Joanna Pikiel, Alexandru Eniu, Dmitry Komov, Gabriela Morar-Bolba, Rubi K Li, Andriy Rusyn, Sang Joon Lee, Sung Young Lee, Francisco J Esteva
BACKGROUND: CT-P6 is a proposed biosimilar to reference trastuzumab. In this study, we aimed to establish equivalence of CT-P6 to reference trastuzumab in neoadjuvant treatment of HER2-positive early-stage breast cancer. METHODS: In this randomised, double-blind, active-controlled, phase 3 equivalence trial, we recruited women aged 18 years or older with stage I-IIIa operable HER2-positive breast cancer from 112 centres in 23 countries. Inclusion criteria were an Eastern Cooperative Oncology Group performance status score of 0 or 1; a normal left ventricular ejection fraction of at least 55%; adequate bone marrow, hepatic, and renal function; at least one measureable lesion; and known oestrogen and progesterone receptor status...
June 2, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28589573/in-vitro-and-in-vivo-effect-of-flutamide-on-steroid-hormone-secretion-in-canine-and-human-inflammatory-breast-cancer-cell-lines
#18
S Caceres, B Monsalve, L Peña, P J de Andres, A Alonso-Diez, M J Illera, W A Woodward, J M Reuben, G Silvan, J C Illera
The aim was to study the effects of flutamide on cell proliferation, in vivo tumour growth and steroid production in canine and human IBC cell lines. IPC-366 and SUM149 cell cultures were exposed to flutamide concentrations for 72 hours. Additionally, IPC-366 and SUM149 xenotransplanted mice were treated subcutaneously with flutamide 3 times a week for 2 weeks. Steroid hormones determination in culture media, serum and tumour homogenates (pregnenolone, progesterone, androstenedione, testosterone, dihydrotestosterone, 17β-oestradiol and oestrone sulphate) were assayed by EIA...
June 6, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28588640/compounds-from-cynomorium-songaricum-with-estrogenic-and-androgenic-activities-suppress-the-oestrogen-androgen-induced-bph-process
#19
Xueni Wang, Rui Tao, Jing Yang, Lin Miao, Yu Wang, Jose Edouard Munyangaju, Nuttapong Wichai, Hong Wang, Yan Zhu, Erwei Liu, Yanxu Chang, Xiumei Gao
OBJECTIVE: To investigate the phytoestrogenic and phytoandrogenic activities of compounds isolated from CS and uncover the role of CS in prevention of oestrogen/androgen-induced BPH. METHODS: Cells were treated with CS compounds, and immunofluorescence assay was performed to detect the nuclear translocation of ERα or AR in MCF-7 or LNCaP cells; luciferase reporter assay was performed to detect ERs or AR transcriptional activity in HeLa or AD293 cells; MTT assay was performed to detect the cell proliferation of MCF-7 or LNCaP cells...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28588280/heterogeneity-of-diffusion-weighted-imaging-in-tumours-and-the-surrounding-stroma-for-prediction-of-ki-67-proliferation-status-in-breast-cancer
#20
Ming Fan, Ting He, Peng Zhang, Juan Zhang, Lihua Li
Breast tissue heterogeneity is related to risk factors that lead to more aggressive tumour growth and worse prognosis, yet such heterogeneity has not been well characterized. The aim of this study is to reveal the heterogeneous signal patterns of the apparent diffusion coefficient (ADC) of a tumour and its surrounding stromal tissue and to predict the Ki-67 proliferation status in oestrogen receptor (ER)-positive breast cancer patients. A dataset of 82 patients who underwent diffusion-weighted imaging (DWI) examination was collected...
June 6, 2017: Scientific Reports
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