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https://www.readbyqxmd.com/read/29350841/epidemiology-and-molecular-characterization-of-influenza-viruses-in-burkina-faso-sub-saharan-africa
#1
Armel M Sanou, Sampoko Carine M Wandaogo, Armel Poda, Laure Tamini, Anselme E Kyere, Tani Sagna, Macaire S Ouedraogo, Maude Pauly, Judith M Hübschen, Claude P Muller, Zekiba Tarnagda, Chantal J Snoeck
BACKGROUND: The importance of influenza viruses in respiratory infections in sub-Saharan Africa has been historically overlooked, including in Burkina Faso. This study therefore aimed at evaluating the prevalence and seasonal occurrence of influenza viruses in children under five years old, at risk of influenza-related complications, presenting with influenza-like illness (ILI) or severe acute respiratory infection (SARI). The study also aimed at identifying the periods with increased influenza transmission for vaccination recommendations in Burkina Faso...
January 19, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29350590/human-genetics-and-molecular-mechanisms-of-vein-of-galen-malformation
#2
Daniel Duran, Philipp Karschnia, Jonathan R Gaillard, Jason K Karimy, Mark W Youngblood, Michael L DiLuna, Charles C Matouk, Beverly Aagaard-Kienitz, Edward R Smith, Darren B Orbach, Georges Rodesch, Alejandro Berenstein, Murat Gunel, Kristopher T Kahle
Vein of Galen malformations (VOGMs) are rare developmental cerebrovascular lesions characterized by fistulas between the choroidal circulation and the median prosencephalic vein. Although the treatment of VOGMs has greatly benefited from advances in endovascular therapy, including technical innovation in interventional neuroradiology, many patients are recalcitrant to procedural intervention or lack accessibility to specialized care centers, highlighting the need for improved screening, diagnostics, and therapeutics...
January 19, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29350455/a-novel-prognostic-six-cpg-signature-in-glioblastomas
#3
An-An Yin, Nan Lu, Amandine Etcheverry, Marc Aubry, Jill Barnholtz-Sloan, Lu-Hua Zhang, Jean Mosser, Wei Zhang, Xiang Zhang, Yu-He Liu, Ya-Long He
AIMS: We aimed to identify a clinically useful biomarker using DNA methylation-based information to optimize individual treatment of patients with glioblastoma (GBM). METHODS: A six-CpG panel was identified by incorporating genome-wide DNA methylation data and clinical information of three distinct discovery sets and was combined using a risk-score model. Different validation sets of GBMs and lower-grade gliomas and different statistical methods were implemented for prognostic evaluation...
January 19, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29350329/detection-of-human-papillomavirus-dna-in-tumors-from-rwandese-breast-cancer-patients
#4
REVIEW
Thierry Habyarimana, Mohammed Attaleb, Jean Baptiste Mazarati, Youssef Bakri, Mohammed El Mzibri
BACKGROUND: During the last decades, a great interest was given to viral etiology of breast cancer. Indeed, due to recent technical improvements and some encouraging new results, it has been a resurgence of interest in the possibility that a substantial proportion of human breast cancers may be caused by viral infections. High-risk genotypes of human papillomavirus (HPV) have been found in breast cancer cases. In the present study, we aimed to assess the presence of HPV DNA in breast cancer cases from Rwanda and to evaluate the association between HPV infection and clinico-pathological features...
January 19, 2018: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/29349813/hla-b27-testing-a-journey-from-flow-cytometry-to-molecular-subtyping
#5
Pratiksha Chheda, Sandeep Warghade, Jyothi Mathias, Tavisha Dama, Sunmeet Matkar, Nilesh Shah, Rajesh Bendre
BACKGROUND: Determination of HLA-B27 status plays an important role as adjuvant in suspected cases for diagnosis of Ankylosing Spondilytis (AS). Objectives of this study were to evaluate (i) flow cytometry method in comparison with DNA microarray for HLA-B27 typing and (ii) EUROArray HLA-B27 Direct assay for HLA-B27 allele detection along with discrimination of AS/non-AS subtypes in Indian population. METHODS: A total of 7543 patients with a presumptive clinical diagnosis of AS were referred for screening of HLA-B27...
January 19, 2018: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29348905/bridging-the-divide-preclinical-research-discrepancies-between-triple-negative-breast-cancer-cell-lines-and-patient-tumors
#6
REVIEW
Andrew Sulaiman, Lisheng Wang
Triple-negative breast cancer (TNBC) is the most refractory subtype of breast cancer and disproportionately accounts for the majority of breast cancer related deaths. Effective treatment of this disease remains an unmet medical need. Over the past several decades, TNBC cell lines have been used as the foundation for drug development and disease modeling. However, ever-mounting research demonstrates striking differences between cell lines and clinical TNBC tumors, disconnecting bench research and actual clinical responses...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348113/genetics-in-endocrinology-the-expanding-genetic-horizon-of-primary-aldosteronism
#7
Silvia Monticone, Fabrizio Buffolo, Martina Tetti, Franco Veglio, Barbara Pasini, Paolo Mulatero
Aldosterone is the main mineralocorticoid hormone in humans and plays a key role in maintaining water and electrolyte homeostasis. Primary aldosteronism (PA), characterized by autonomous aldosterone overproduction by the adrenal glands, affects 6% of the general hypertensive population and can be either sporadic or familial. Aldosterone producing adenoma (APA) and bilateral adrenal hyperplasia (BAH) are the two most frequent subtypes of sporadic PA, and 4 forms of familial hyperaldosteronism (FH-I to FH-IV) have been identified...
January 18, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29345730/regional-pattern-of-microgliosis-in-sporadic-creutzfeldt-jakob-disease-in-relation-to-phenotypic-variants-and-disease-progression
#8
Alessia Franceschini, Rosaria Strammiello, Sabina Capellari, Armin Giese, Piero Parchi
AIMS: To describe the regional profiles of microglial activation in sporadic Creutzfeldt-Jakob disease (sCJD) subtypes and analyse the influence of prion strain, disease duration and codon 129 genotype. METHODS: We studied the amount/severity and distribution of activated microglia, protease-resistant prion protein (PrPSc ) spongiform change, and astrogliosis in 8 regions of 57 brains representative of the entire spectrum of sCJD subtypes. RESULTS: In each individual subtype, the regional extent and distribution of microgliosis significantly correlated with PrPSc deposition and spongiform change, leading to subtype-specific "lesion profiles"...
January 18, 2018: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29344953/established-emerging-and-elusive-molecular-targets-in-the-treatment-of-lung-cancer
#9
REVIEW
Jean-Nicolas Gallant, Christine M Lovly
Although histological subtype still underlies tumor classification and treatment, the recognition that lung cancer is, largely, a genetic disease has prompted a push to reconfigure cancer taxonomies according to molecular criteria. In this review, we discuss established (e.g. EGFR, ALK, ROS1, PD-1/PD-L1), emerging (e.g. MET, RET, NTRK), and elusive (e.g. TP53, KRAS, MYC) molecular targets in the treatment of lung cancer. We synthesize a large and rapidly growing body of literature regarding the discovery and therapeutic inhibition of these targets in lung cancer...
January 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29344951/the-rise-of-a-novel-classification-system-for-endometrial-carcinoma-integration-of-molecular-subclasses
#10
REVIEW
Jessica McAlpine, Alicia Leon-Castillo, Tjalling Bosse
Endometrial cancer is a clinically heterogeneous disease and it is becoming increasingly clear that this heterogeneity may be a function of the diversity of the underlying molecular alterations. Recent large scale genomic studies have revealed that endometrial cancer can be divided into at least four distinct molecular subtypes, with well described underlying genomic aberrations. These subtypes can be reliably delineated and carry significant prognostic as well as predictive information; embracing and incorporating them into clinical practice is thus attractive...
January 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29344885/microrna-networks-in-breast-cancer-cells
#11
Andliena Tahiri, Miriam R Aure, Vessela N Kristensen
A variety of molecular techniques can be used in order to unravel the molecular composition of cells. In particular, the microarray technology has been used to identify novel biomarkers that may be useful in the diagnosis, prognosis, or treatment of cancer. The microarray technology is ideal for biomarker discovery as it allows for the screening of a large number of molecules at once. In this review, we focus on microRNAs (miRNAs) which are key molecules in cells and regulate gene expression post-transcriptionally...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344857/adaptation-of-laser-microdissection-technique-to-nanostring-rna-analysis-in-the-study-of-a-spontaneous-metastatic-mammary-carcinoma-mouse-model
#12
Nadia P Castro, Yelena G Golubeva
The mouse model characterized by spontaneous lung metastasis from JygMC (A) cells closely resembles the human triple negative breast cancer (TNBC) subtype. The primary tumors morphologically present both epithelial and spindle-like cells, but metastases in lung parenchyma display only adenocarcinoma properties. In the study of molecular signatures, laser capture microdissection (LCM) on frozen tissue sections was used to separate the following regions of interest: the epithelial-mesenchymal transition (EMT), mesenchymal-epithelial transition (MET), carcinoma, lung metastases, normal mammary gland and normal lung parenchyma...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344718/combination-of-baseline-fdg-pet-ct-total-metabolic-tumour-volume-and-gene-expression-profile-have-a-robust-predictive-value-in-patients-with-diffuse-large-b-cell-lymphoma
#13
Mathieu Nessim Toledano, P Desbordes, A Banjar, I Gardin, P Vera, P Ruminy, F Jardin, H Tilly, S Becker
PURPOSE: This study evaluated the predictive significance of total metabolic tumour volume (TMTV) measured on baseline FDG PET/CT and its value in addition to gene expression profiling using a new method of gene analysis (rapid reverse transcriptase multiplex ligation-dependent probe amplification assay, RT-MLPA) in patients with diffuse large B-cell lymphoma treated with R-CHOP or R-CHOP-like chemotherapies. METHODS: The analysis included 114 patients. TMTV was measured using a 41% SUVmax threshold and tumours were classified into GCB or ABC subtypes according to the RT-MLPA assay...
January 17, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29344265/high-expression-of-pu-1-is-associated-with-her-2-and-shorter-survival-in-patients-with-breast-cancer
#14
Jing Lin, Wei Liu, Tian Luan, Lili Yuan, Wei Jiang, Huilong Cai, Weiguang Yuan, Yuwen Wang, Qingyuan Zhang, Lihong Wang
The transcription factor PU.1 was previously identified as an oncogene or a tumor suppressor in different types of leukemia. The aim of the present study was to investigate the expression of PU.1 in breast cancer and to analyze its association with clinical features and prognosis. Immunohistochemistry was used to determine PU.1 expression in breast cancer tissue microarrays and paraffin-embedded sections. The association between PU.1 expression and clinicopathological factors was assessed by using chi-square test...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344162/effects-of-rat-bone-marrow-derived-mesenchymal-stem-cells-on-breast-cancer-cells-with-differing-hormone-receptor-status
#15
Ying Wang, Shan Shao, Minna Luo, Shangke Huang, Lu Feng, Na Yuan, Fang Wu, Chengxue Dang, Xinhan Zhao
Breast cancer is a heterogeneous disease that can be classified into several molecular intrinsic subtypes according to hormone markers, including estrogen receptor, progesterone receptor and human epidermal growth factor receptor-2. Breast cancer cases with different hormone status vary with respect to patient morbidity, metastasis organotropism and disease progression. It is well known that the most preferential relapse site of breast cancer is in the bone, but the metastatic incidence is markedly higher in hormone receptor-positive cancer compared with that in hormone receptor-negative cancers...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343199/cd204-expressing-tumor-associated-macrophages-are-associated-with-malignant-high-grade-and-hormone-receptor-negative-canine-mammary-gland-tumors
#16
Byung-Joon Seung, Ha-Young Lim, Jong-Il Shin, Hyun-Woo Kim, Seung-Hee Cho, Soo-Hyeon Kim, Jung-Hyang Sur
Tumor-associated macrophages (TAMs) are an important component of leukocyte infiltration in tumors. TAMs can be classified into M1 and M2 phenotypes. In the present study, the expression of CD204, an M2-polarized macrophage receptor, was investigated by immunohistochemistry in the area surrounding TAMs in 101 cases of canine mammary gland tumor (CMT). We examined the relationship between M2-polarized TAMs and malignancy, histological subtype, histological grade, molecular subtype, hormone receptor (HR) status, and clinical obesity indices...
January 1, 2018: Veterinary Pathology
https://www.readbyqxmd.com/read/29341983/diarrheagenic-escherichia-coli-and-acute-gastroenteritis-in-children-in-davidson-county-tennessee-united-states-a-case-control-study
#17
Aamer Imdad, Monique A Foster, Junaid Iqbal, Christopher Fonnesbeck, Daniel C Payne, Chengxian Zhang, James D Chappell, Natasha Halasa, Oscar G Gómez-Duarte
BACKGROUND: Diarrheagenic Escherichia coli (DEC) are an important cause of acute gastroenteritis in children; however, there is limited information available on the epidemiology, phylogenetics, serotyping, and antibiotic susceptibility of DEC in children in the United States. The aim of this study was to determine the molecular epidemiology of DEC among children with and without acute gastroenteritis in Davidson County, Tennessee. METHODS: This prospective, frequency matched, case-control study recruited subjects 15 days to 17 years of age and detected DEC with polymerase chain reaction from stool samples...
January 16, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29341165/histopathological-and-molecular-classification-of-colorectal-cancer-and-corresponding-peritoneal-metastases
#18
I Ubink, W J van Eden, P Snaebjornsson, N F M Kok, J van Kuik, W M U van Grevenstein, M M Laclé, J Sanders, R J A Fijneman, S G Elias, I H M Borel Rinkes, A G J Aalbers, O Kranenburg
BACKGROUND: Patients with colorectal peritoneal carcinomatosis have a very poor prognosis. The recently developed consensus molecular subtype (CMS) classification of primary colorectal cancer categorizes tumours into four robust subtypes, which could guide subtype-targeted therapy. CMS4, also known as the mesenchymal subtype, has the greatest propensity to form distant metastases. CMS4 status and histopathological features of colorectal peritoneal carcinomatosis were investigated in this study...
January 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29341157/minimizing-inequality-in-access-to-precision-medicine-in-breast-cancer-by-real-time-population-based-molecular-analysis-in-the-scan-b-initiative
#19
L Rydén, N Loman, C Larsson, C Hegardt, J Vallon-Christersson, M Malmberg, H Lindman, A Ehinger, L H Saal, Å Borg
BACKGROUND: Selection of systemic therapy for primary breast cancer is currently based on clinical biomarkers along with stage. Novel genomic tests are continuously being introduced as more precise tools for guidance of therapy, although they are often developed for specific patient subgroups. The Sweden Cancerome Analysis Network - Breast (SCAN-B) initiative aims to include all patients with breast cancer for tumour genomic analysis, and to deliver molecular subtype and mutational data back to the treating physician...
January 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29341152/meta-analysis-of-the-prognostic-value-of-cpg-island-methylator-phenotype-in-gastric-cancer
#20
REVIEW
A G M T Powell, S Soul, A Christian, W G Lewis
BACKGROUND: CpG island methylator phenotype (CIMP) has been identified as a distinct molecular subtype of gastric cancer, yet associations with survival are conflicting. A meta-analysis was performed to estimate the prognostic significance of CIMP. METHODS: Embase, MEDLINE, PubMed, PubMed Central and Cochrane databases were searched systematically for studies related to the association between CIMP and survival in patients undergoing potentially curative resection for gastric cancer...
January 2018: British Journal of Surgery
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