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https://www.readbyqxmd.com/read/28346531/the-prevalence-of-trichomoniasis-and-associated-factors-among-women-treated-at-a-university-hospital-in-southern-brazil
#1
Fabiane Aguiar Dos Anjos Gatti, Etienne Ceolan, Fernando Salles Rodrigues Greco, Paula Costa Santos, Gabriel Baracy Klafke, Gisele Rodrigues de Oliveira, Andrea Von Groll, Ana Maria Barral de Martinez, Carla Vitola Gonçalves, Carlos James Scaini
BACKGROUND: Trichomoniasis is the most prevalent non-viral sexually transmitted disease (STD) in the world; however, it remains a neglected parasitic disease. This study aimed to determine the prevalence of trichomoniasis and its associated epidemiological factors among women treated at a hospital in southern Brazil. METHODOLOGY/PRINCIPAL FINDINGS: A cross-sectional study was performed to determine the prevalence of this infection in women treated at Hospital Universitário (HU) in Rio Grande, Rio Grande do Sul, Brazil, between January 2012 and January 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28346506/specific-expression-of-novel-long-non-coding-rnas-in-high-hyperdiploid-childhood-acute-lymphoblastic-leukemia
#2
Mathieu Lajoie, Simon Drouin, Maxime Caron, Pascal St-Onge, Manon Ouimet, Romain Gioia, Marie-Hélène Lafond, Ramon Vidal, Chantal Richer, Karim Oualkacha, Arnaud Droit, Daniel Sinnett
Pre-B cell childhood acute lymphoblastic leukemia (pre-B cALL) is a heterogeneous disease involving many subtypes typically stratified using a combination of cytogenetic and molecular-based assays. These methods, although widely used, rely on the presence of known chromosomal translocations, which is a limiting factor. There is therefore a need for robust, sensitive, and specific molecular biomarkers unaffected by such limitations that would allow better risk stratification and consequently better clinical outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28345619/impact-of-molecular-subtypes-on-metastatic-breast-cancer-patients-a-seer-population-based-study
#3
Yue Gong, Yi-Rong Liu, Peng Ji, Xin Hu, Zhi-Ming Shao
To investigate the significance and impact of molecular subtyping stratification on metastatic breast cancer patients, we identified 159,344 female breast cancer patients in the Surveillance, Epidemiology and End Results (SEER) database with known hormone receptor (HoR) and human epidermal growth factor receptor 2 (HER2) status. 4.8% of patients were identified as having stage IV disease, and were more likely to be HER2+/HoR-, HER2+/HoR+, or HER2-/HoR-. Stage IV breast cancer patients with a HER2+/HoR+ status exhibited the highest median overall survival (OS) (44...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28344870/immunological-profiling-of-molecularly-classified-high-risk-endometrial-cancers-identifies-pole-mutant-and-microsatellite-unstable-carcinomas-as-candidates-for-checkpoint-inhibition
#4
Florine A Eggink, Inge C Van Gool, Alexandra Leary, Pamela M Pollock, Emma J Crosbie, Linda Mileshkin, Ekaterina S Jordanova, Julien Adam, Luke Freeman-Mills, David N Church, Carien L Creutzberg, Marco De Bruyn, Hans W Nijman, Tjalling Bosse
High-risk endometrial cancer (EC) is an aggressive disease for which new therapeutic options are needed. Aims of this study were to validate the enhanced immune response in highly mutated ECs and to explore immune profiles in other EC subgroups. We evaluated immune infiltration in 116 high-risk ECs from the TransPORTEC consortium, previously classified into four molecular subtypes: (i) ultramutated POLE exonuclease domain-mutant ECs (POLE-mutant); (ii) hypermutated microsatellite unstable (MSI); (iii) p53-mutant; and (iv) no specific molecular profile (NSMP)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28343981/global-epidemiology-of-hcv-subtypes-and-resistance-associated-substitutions-evaluated-by-sequencing-based-subtype-analyses
#5
Tania Welzel, Neeru Bhardwaj, Charlotte Hedskog, Krishna Chodavarapu, Gregory Camus, John McNally, Diana Brainard, Michael D Miller, Hongmei Mo, Evguenia Svarovskaia, Ira Jacobson, Stefan Zeuzem, Kosh Agarwal
BACKGROUND & AIMS: Hepatitis C virus (HCV) is highly variable with 7 genotypes and 67 subtypes characterized to date. HCV genotype (GT) and subtype, and presence of resistance associated substitutions (RASs) represent the key viral determinants for the selection of direct-acting antiviral (DAA) treatment regimens. However, currently available HCV genotyping assays have limitations in differentiating between HCV subtypes and RAS prevalence in different subtypes is largely undefined. METHODS: In this study, we compared HCV GT and subtypes with INNO-LiPA 2...
March 23, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28341751/low-recombination-proficiency-score-rps-predicts-heightened-sensitivity-to-dna-damaging-chemotherapy-in-breast-cancer
#6
Sean Pitroda, Riyue Bao, Jorge Andrade, Ralph R Weichselbaum, Philip P Connell
PURPOSE: Molecular-based cancer tests have been developed to augment the standard clinical and pathologic features used to tailor treatments to individual breast cancer patients. Homologous recombination (HR) repairs double-stranded DNA breaks and promotes tolerance to lesions that disrupt DNA replication. Recombination Proficiency Score (RPS) quantifies HR efficiency based on the expression of four genes involved in DNA damage repair. We hypothesized low RPS values can identify HR-deficient breast cancers most sensitive to DNA-damaging chemotherapy...
March 24, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28341476/panel-based-clinical-genetic-testing-in-85-children-with-inherited-retinal-disease
#7
Rachel L Taylor, Neil R A Parry, Stephanie J Barton, Christopher Campbell, Claire M Delaney, Jamie M Ellingford, Georgina Hall, Claire Hardcastle, Jiten Morarji, Elisabeth J Nichol, Lindsi C Williams, Sofia Douzgou, Jill Clayton-Smith, Simon C Ramsden, Vinod Sharma, Susmito Biswas, I Chris Lloyd, Jane L Ashworth, Graeme C Black, Panagiotis I Sergouniotis
PURPOSE: To assess the clinical usefulness of genetic testing in a pediatric population with inherited retinal disease (IRD). DESIGN: Single-center retrospective case series. PARTICIPANTS: Eighty-five unrelated children with a diagnosis of isolated or syndromic IRD who were referred for clinical genetic testing between January 2014 and July 2016. METHODS: Participants underwent a detailed ophthalmic examination, accompanied by electrodiagnostic testing (EDT) and dysmorphologic assessment where appropriate...
March 21, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28341226/lung-adenocarcinoma-and-squamous-cell-carcinoma-gene-expression-subtypes-demonstrate-significant-differences-in-tumor-immune-landscape
#8
Hawazin Faruki, Gregory M Mayhew, Jonathan S Serody, D Neil Hayes, Charles M Perou, Myla Lai-Goldman
INTRODUCTION: Molecular subtyping of lung Adenocarcinoma (AD) and lung Squamous Cell Carcinoma (SQ) reveal biologically diverse tumors that vary in their genomic and clinical attributes. METHODS: Using published immune cell signatures and several Lung AD and SQ gene expression datasets including The Cancer Genome Atlas (TCGA), immune response in relation to AD and SQ expression subtypes was examined. Expression of immune cell populations and other immune related genes including CD274 (PD-L1) was investigated in the tumor microenvironment relative to the expression subtypes of AD (Terminal Respiratory Unit (TRU), Proximal Proliferative (PP), and Proximal Inflammatory (PI)) and SQ subtypes (Primitive, Classical, Secretory, Basal)...
March 21, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28340578/abcb1-and-abcg2-drug-transporters-are-differentially-expressed-in-non-small-cell-lung-cancers-nsclc-and-expression-is-modified-by-cisplatin-treatment-via-altered-wnt-signaling
#9
M Vesel, J Rapp, D Feller, E Kiss, L Jaromi, M Meggyes, G Miskei, B Duga, G Smuk, T Laszlo, I Karner, J E Pongracz
BACKGROUND: Lung cancer (LC) is still the most common cause of cancer related deaths worldwide. Non-small cell lung cancer (NSCLC) accounts for 85% of all LC cases but is not a single entity. It is now accepted that, apart from the characteristic driver mutations, the unique molecular signatures of adeno- (AC) and squamous cell carcinomas (SCC), the two most common NSCLC subtypes should be taken into consideration for their management. Therapeutic interventions, however, frequently lead to chemotherapy resistance highlighting the need for in-depth analysis of regulatory mechanisms of multidrug resistance to increase therapeutic efficiency...
March 24, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28340577/gene-and-protein-analysis-reveals-that-p53-pathway-is-functionally-inactivated-in-cytogenetically-normal-acute-myeloid-leukemia-and-acute-promyelocytic-leukemia
#10
Julia Abramowitz, Tzahi Neuman, Riki Perlman, Dina Ben-Yehuda
BACKGROUND: Mechanisms that inactivate the p53 pathway in Acute Myeloid Leukemia (AML), other than rare mutations, are still not well understood. METHODS: We performed a bioinformatics study of the p53 pathway function at the gene expression level on our collection of 1153 p53-pathway related genes. Publically available Affymetrix data of 607 de-novo AML patients at diagnosis were analyzed according to the patients cytogenetic, FAB and molecular mutations subtypes...
March 24, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/28339588/mri-features-predict-survival-and-molecular-markers-in-diffuse-lower-grade-gliomas
#11
Hao Zhou, Martin Vallières, Harrison X Bai, Chang Su, Haiyun Tang, Derek Oldridge, Zishu Zhang, Bo Xiao, Weihua Liao, Yongguang Tao, Jianhua Zhou, Paul Zhang, Li Yang
Background.: Previous studies have shown that MR imaging features can be used to predict survival and molecular profile of glioblastoma. However, no study of a similar type has been performed on lower-grade gliomas (LGGs). Methods.: Presurgical MRIs of 165 patients with diffuse low- and intermediate-grade gliomas (histological grades II and III) were scored according to the Visually Accessible Rembrandt Images (VASARI) annotations. Radiomic models using automated texture analysis and VASARI features were built to predict isocitrate dehydrogenase 1 (IDH1) mutation, 1p/19q codeletion status, histological grade, and tumor progression...
January 24, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28339063/viral-and-host-factors-associated-with-outcomes-of-hepatitis-c-virus-infection-review
#12
Zehui Yan, Yuming Wang
Hepatitis C virus (HCV) infection is a major health issue globally. Owing to the progress made in host genetics and HCV molecular virology, emerging data have suggested that the natural course and treatment response in patients with HCV infection are largely determined by complex host‑viral interactions. HCV genotype is the most important viral factor predicting the response to pegylated interferon‑α plus ribavirin therapy. The subtype of HCV genotype 1 is the key viral factor that predicts the efficacy of direct‑acting antiviral therapy...
March 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338847/paradigm-shift-from-diagnosing-patients-based-on-common-symptoms-to-categorizing-patients-into-subtypes-with-different-pathogenic-mechanisms-to-guide-treatment-for-alzheimer-s-disease
#13
Keiro Shirotani, Masashi Asai, Nobuhisa Iwata
Alzheimer's disease (AD) is a major cause of dementia in the elderly, and the number of AD patients is rapidly growing as life expectancy increases. However, disease-modifying drugs are not yet available. According to the amyloid hypothesis, disease onset is triggered by aggregation and accumulation of amyloid-β peptide, followed by formation of neurofibrillary tangles composed of hyperphosphorylated tau, and synaptic loss/neuronal cell death leading to dementia. Based on this hypothesis, various clinical trials for treatment of AD have been conducted, but most were discontinued due to failure to achieve cognitive improvement or appearance of adverse effects...
March 7, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28337281/c-myc-induced-upregulation-of-lncrna-snhg12-regulates-cell-proliferation-apoptosis-and-migration-in-triple-negative-breast-cancer
#14
Ouchen Wang, Fan Yang, Yehuan Liu, Lin Lv, Ruimin Ma, Chuanzhi Chen, Jiao Wang, Qiufan Tan, Yue Cheng, Erjie Xia, Yizuo Chen, Xiaohua Zhang
Triple-negative breast cancer (TNBC) is one of the most aggressive subtypes of breast cancer, with a significantly higher recurrence and mortality rate. There is an urgent need to uncover the mechanism underlying TNBC and establish therapeutic targets. Long non-coding RNAs (lncRNAs) are involved in a series of biological functions and provide novel insights into the molecular mechanism of cancer. Based on their expression specificity and large number, lncRNAs are likely to serve as the basis for clinical applications in oncology...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337187/defining-and-evaluating-a-core-genome-multilocus-sequence-typing-scheme-for-whole-genome-sequence-based-typing-of-klebsiella-pneumoniae
#15
Haijian Zhou, Wenbing Liu, Tian Qin, Chen Liu, Hongyu Ren
At present, the most used methods for Klebsiella pneumoniae subtyping are multilocus sequence typing (MLST) and pulsed-field gel electrophoresis (PFGE). However, the discriminatory power of MLST could not meet the need for distinguishing outbreak and non-outbreak isolates and the PFGE is time-consuming and labor-intensive. A core genome multilocus sequence typing (cgMLST) scheme for whole-genome sequence-based typing of K. pneumoniae was developed for solving the disadvantages of these traditional molecular subtyping methods...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28334730/examining-the-common-aetiology-of-serous-ovarian-cancers-and-basal-like-breast-cancers-using-double-primaries
#16
Colin B Begg, Megan S Rice, Emily C Zabor, Shelley S Tworoger
BACKGROUND: The somatic molecular profiles of basal-like breast cancers and high-grade serous ovarian cancers share many similarities, leading to the hypothesis that they have similar aetiologies, in which case they should occur together in the same patient more often than expected. METHODS: We identified 545 women with double independent primary cancers of the breast and ovary reported to the California Cancer Registry from 1999 to 2013 and examined the coincidence of subtype combinations...
March 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28334705/are-there-breast-cancer-patients-with-node-negative-small-tumours-who-do-not-benefit-from-adjuvant-systemic-therapy
#17
Tanja Stüber, Igor Novopashenny, Joachim Diessner, Catharina Bartmann, Roland Stein, Mathias Krockenberger, Sebastian Häusler, Wolfgang Janni, Rolf Kreienberg, Maria Blettner, Achim Wöckel, Manfred Wischnewsky
OBJECTIVE: To identify subgroups of patients with pT1 pN0 breast cancer (BC) who might not profit from adjuvant systemic therapy (AST). METHODS: Data of 3,774 pT1 pN0 BC patients from 17 certified BC centres within the BRENDA study group were collected between 1992 and 2008 and retrospectively analysed. Uni- and multivariate analyses were performed using Kaplan-Meier methods and Cox regression models. RESULTS: 279 (7.4%) of the pT1 pN0 BC patients were T1a, 944 (25...
March 24, 2017: Oncology
https://www.readbyqxmd.com/read/28334112/human-mitochondrial-pyrroline-5-carboxylate-reductase-1-promotes-invasiveness-and-impacts-survival-in-breast-cancers
#18
Jiefeng Ding, Mei-Ling Kuo, Leila Su, Lijun Xue, Frank Luh, Hang Zhang, Jianghai Wang, Tiffany G Lin, Keqiang Zhang, Peiguo Chu, Shu Zheng, Xiyong Liu, Yun Yen
Human mitochondrial pyrroline-5-carboxylate reductase (PYCR) is a house keeping enzyme that catalyzes the reduction of ?1-pyrroline-5-carboxylate (P5C) to proline. This enzymatic cycle plays pivotal roles in amino acid metabolism, intracellular redox potential, and mitochondrial integrity. Here, we hypothesize that PYCR1 might be a novel prognostic biomarker and therapeutic target for breast cancer. In this study, breast cancer tissue samples were obtained from Zhejiang University (ZJU set). Immunohistochemistry analysis was performed to detect the protein level of PYCR1, and Kaplan-Meier and Cox proportional analyses were employed in this outcome study...
February 24, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28333298/occurrence-and-molecular-characteristics-of-esbl-ampc-producing-escherichia-coli-in-faecal-samples-from-horses-in-an-equine-clinic
#19
Ilias Apostolakos, Eelco Franz, Angela H A M van Hoek, Alice Florijn, Christiaan Veenman, Marianne M Sloet-van Oldruitenborgh-Oosterbaan, Cindy Dierikx, Engeline van Duijkeren
Objectives: To investigate the occurrence and characteristics of ESBL/AmpC-producing Escherichia coli in faecal samples from horses at one equine clinic in the Netherlands. Methods: A total of 91 horses, including residents and patients, were sampled. ESBL/AmpC-producing E. coli were identified by a combination disc diffusion test. Phylogenetic groups and MLST were determined. ESBL/AmpC genes were analysed using PCR and sequencing. Plasmids were characterized by transformation and PCR-based replicon typing...
March 13, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28332699/mitotic-index-matter-how-to-improve-the-assessment-of-mitosis-in-order-to-better-classify-g2-breast-cancer-and-luminal-a-category
#20
Rachele Del Sordo, Guido Bellezza, Ivana Ferri, Anjuta Pireddu, Renato Colella, Angelo Sidoni
G2 ductal infiltrating carcinomas are a heterogeneous group of tumours with ambiguous clinical significance. This is because G2 carcinomas are almost always the largest category and poorly reproducible. Mitotic count (MC) is one of the causes of poor histological grading reproducibility. The phosphoistone H3 (PPH3) antibody improves identification of mitotic figures. The aim of our study is to demonstrate whether using a new histological grading system based on PPH3 immunostaining to assess MC can re-stratify G2 category...
March 23, 2017: Histology and Histopathology
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