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https://www.readbyqxmd.com/read/28069798/integrative-comparison-of-mrna-expression-patterns-in-breast-cancers-from-caucasian-and-asian-americans-with-implications-for-precision-medicine
#1
Yanxia Shi, Albert Steppi, Ye Cao, Jianan Wang, Max M He, Liren Li, Jinfeng Zhang
Asian Americans (AS) have significantly lower incidence and mortality rates of breast cancer than Caucasian Americans (CA). Although this racial disparity has been documented, the underlying pathogenetic factors explaining it are obscure. We addressed this issue by an integrative genomics approach to compare mRNA expression between AS and CA cases of breast cancer. RNA-seq data from the Cancer Genome Atlas showed that mRNA expression revealed significant differences at gene and pathway levels. Increased susceptibility and severity in CA patients were likely the result of synergistic environmental and genetic risk factors, with arachidonic acid metabolism and PPAR signaling pathways implicated in linking environmental and genetic factors...
November 15, 2016: Cancer Research
https://www.readbyqxmd.com/read/28051344/trends-in-cancer-mortality-among-adolescents-and-young-adults-in-brazil
#2
Nathalie Vieira Balmant, Rejane de Souza Reis, Marceli de Oliveira Santos, Julio Pinto Oliveira, Beatriz de Camargo
PURPOSE: Adolescents and young adults (AYA) with cancer comprise an intermediate age group between pediatric and adult oncology, and have a spectrum of different types of cancers. Survival among this group has not improved as much as in younger children with cancer. The aim of this study was evaluate the trends in cancer mortality of AYA aged 15-29 years in Brazil. METHODS: Data were extracted from the Atlas of Cancer Mortality databases from 1979 to 2013. Age-specific mortality rates were calculated based on the deaths from each type of cancer and the period via a direct method using the proposed world population age groups...
January 4, 2017: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/28028826/identification-of-the-potential-biomarkers-for-the-metastasis-of-rectal-adenocarcinoma
#3
Yang Hua, Xiukun Ma, Xianglong Liu, Xiangfei Yuan, Hai Qin, Xipeng Zhang
Rectal cancer is a common malignant tumor of the digestive tract, with a high incidence and high mortality. This study aimed to identify the potential biomarkers and therapeutic targets for rectal adenocarcinoma (RAC) metastasis. The expression profiling of RAC patients with metastasis and RAC patients without metastasis was downloaded from The Cancer Genome Atlas (TCGA) database. The datasets were used to identify the genes associated with RAC metastasis. Fifty up-regulated genes and seventeen down-regulated genes were identified in the primary tumor loci of RAC metastasis compared with non-metastasis...
December 28, 2016: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28027320/genomic-analysis-of-uterine-lavage-fluid-detects-early-endometrial-cancers-and-reveals-a-prevalent-landscape-of-driver-mutations-in-women-without-histopathologic-evidence-of-cancer-a-prospective-cross-sectional-study
#4
Navya Nair, Olga Camacho-Vanegas, Dmitry Rykunov, Matthew Dashkoff, Sandra Catalina Camacho, Cassie A Schumacher, Jonathan C Irish, Timothy T Harkins, Elijah Freeman, Isaac Garcia, Elena Pereira, Sviatoslav Kendall, Rachel Belfer, Tamara Kalir, Robert Sebra, Boris Reva, Peter Dottino, John A Martignetti
BACKGROUND: Endometrial cancer is the most common gynecologic malignancy, and its incidence and associated mortality are increasing. Despite the immediate need to detect these cancers at an earlier stage, there is no effective screening methodology or protocol for endometrial cancer. The comprehensive, genomics-based analysis of endometrial cancer by The Cancer Genome Atlas (TCGA) revealed many of the molecular defects that define this cancer. Based on these cancer genome results, and in a prospective study, we hypothesized that the use of ultra-deep, targeted gene sequencing could detect somatic mutations in uterine lavage fluid obtained from women undergoing hysteroscopy as a means of molecular screening and diagnosis...
December 2016: PLoS Medicine
https://www.readbyqxmd.com/read/28025100/arf6-induced-by-mutant-kras-promotes-proliferation-and-warburg-effect-in-pancreatic-cancer
#5
Chen Liang, Yi Qin, Bo Zhang, Shunrong Ji, Si Shi, Wenyan Xu, Jiang Liu, Jinfeng Xiang, Dingkong Liang, Qiangsheng Hu, Quanxing Ni, Xianjun Yu, Jin Xu
Though significant progress has been made in the availability of diagnostic techniques and treatment strategies, pancreatic cancer remains a disease of high mortality rates. Therefore, there is an urgent need for a better understanding of the molecular mechanisms that governs the oncogenesis and metastasis process of pancreatic cancer. In our study, by using the Cancer Genome Atlas (TCGA) dataset analysis, we demonstrated that the small guanosine triphosphatase (GTPase) ADP-ribosylation factor 6 (ARF6) serves as a biomarker for predicting prognosis of pancreatic cancer...
December 23, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27987135/predictors-of-severe-outcomes-in-patients-with-clostridium-difficile-infection-from-a-hispanic-population
#6
Laura Paláu-Dávila, Elvira Garza-González, Eva María Gutiérrez-Delgado, Adrián Camacho-Ortiz
BACKGROUND: Factors associated with complicated Clostridium difficile infection (CDI) may vary among populations, and predictors of severe outcomes in CDI have not been studied in Hispanic patients. The aim of this study was to identify factors associated with a higher risk of colectomy, all-cause mortality, and CDI-associated mortality in a Hispanic population. METHODS: We performed a retrospective study of all hospitalized patients with a diagnosis of CDI between January 1, 2011 and September 30, 2015 in a 450-bed teaching hospital in Monterrey, northeast Mexico...
December 17, 2016: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/27959953/identification-of-micrornas-as-breast-cancer-prognosis-markers-through-the-cancer-genome-atlas
#7
Jeremy T-H Chang, Fan Wang, William Chapin, R Stephanie Huang
Breast cancer is the second-most common cancer and second-leading cause of cancer mortality in American women. The dysregulation of microRNAs (miRNAs) plays a key role in almost all cancers, including breast cancer. We comprehensively analyzed miRNA expression, global gene expression, and patient survival from the Cancer Genomes Atlas (TCGA) to identify clinically relevant miRNAs and their potential gene targets in breast tumors. In our analysis, we found that increased expression of 12 mature miRNAs-hsa-miR-320a, hsa-miR-361-5p, hsa-miR-103a-3p, hsa-miR-21-5p, hsa-miR-374b-5p, hsa-miR-140-3p, hsa-miR-25-3p, hsa-miR-651-5p, hsa-miR-200c-3p, hsa-miR-30a-5p, hsa-miR-30c-5p, and hsa-let-7i-5p -each predicted improved breast cancer survival...
2016: PloS One
https://www.readbyqxmd.com/read/27935967/large-scale-analysis-of-gene-expression-data-reveals-a-novel-gene-expression-signature-associated-with-colorectal-cancer-distant-recurrence
#8
Nehad M Alajez
Colorectal cancer (CRC) is the fourth-ranked cause of cancer-related deaths worldwide. Despite recent advances in CRC management, distant recurrence (DR) remains the major cause of mortality in patients with preoperative chemotherapy and radiotherapy, underscoring a need to precisely identify novel gene signatures for predicting the risk of systemic relapse. Herein, we integrated two independent CRC gene expression datasets: the GSE71222 dataset, including 26 patients who developed DR and 126 patients who did not develop DR, and the GSE21510 dataset, including 23 patients who developed DR and 76 patients who did not develop DR...
2016: PloS One
https://www.readbyqxmd.com/read/27881005/a-microrna-expression-signature-as-a-predictor-of-survival-for-colon-adenocarcinoma
#9
M Xu, Y Kuang, M Wang, X Han, Q Yang
Colon cancer is a major cause of cancer mortality worldwide and most colon cancers are adenocarcinoma. MicroRNA (miRNA) expression signature has been shown to be able to predict progression and prognosis of various cancers. The aim of our study was to explore a novel signature of microRNA expression for predicting survival of colon adenocarcinoma patients. By analyzing the miRNA expression profiles and clinical information of 329 colon adenocarcinoma patients derived from The Cancer Genome Atlas database. 129 miRNAs were identified to be expressed differentially between the cancer and adjacent tissues...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27880730/loss-of-zg16-is-regulated-by-mir-196a-and-contributes-to-stemness-and-progression-of-colorectal-cancer
#10
Xiaobing Chen, Peng Du, Junjun She, Liang Cao, Yingchao Li, Hongping Xia
Colorectal cancer (CRC) is one of the most common malignant tumour and the leading cause of cancer-related mortality worldwide. Clarification of the mechanism that underlies CRC tumorigenesis and progression therefore is urgently needed ffor developing novel therapies. Through analysis of The Cancer Genome Atlas (TCGA) dataset, we identified an interesting gene, ZG16, which is significantly decreased in CRC samples compared to adjacent non-tumor tissues and associated with prognosis of patients. We found that the expression of ZG16 correlated with CRC related genes which were regulated by APC/CTNNB1 pathway...
November 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/27875244/a-six-genotype-genetic-prognostic-model-for-papillary-thyroid-cancer
#11
Xiaopei Shen, Rengyun Liu, Mingzhao Xing
A unique prognostic role of the genetic duet of BRAF V600E and TERT promoter mutations in papillary thyroid cancer (PTC) has been recently established, but the role of RAS mutation in this genetic interplay remains to be established. Using The Cancer Genome Atlas (TCGA) data of patients with PTC from 19 medical centers, we investigated the interactions among the three mutations in clinical outcomes of PTC. We found that BRAF and RAS mutations were mutually exclusive, but both were associated with TERT promoter mutations, with the genetic duet of BRAF/RAS and TERT mutations occurring in 34/388 (8...
January 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27842912/upregulation-of-slc2-glut-family-genes-is-related-to-poor-survival-outcomes-in-papillary-thyroid-carcinoma-analysis-of-data-from-the-cancer-genome-atlas
#12
Young Jun Chai, Jin Wook Yi, So Won Oh, Young A Kim, Ka Hee Yi, Ju Han Kim, Kyu Eun Lee
BACKGROUND: The Warburg effect describes increased glucose uptake in cancer cells, and glucose transporter proteins are overexpressed in many tumors. In this study, we evaluated the expression of 14 SLC2A genes encoding glucose transporter proteins in papillary thyroid carcinoma patients. METHODS: Clinical information and gene expression data from 499 papillary thyroid carcinoma patients were downloaded from The Cancer Genome Atlas database. Correlations between SLC2 gene family (SLC2A1-14) mRNA expression levels and clinicopathologic factors were analyzed...
January 2017: Surgery
https://www.readbyqxmd.com/read/27789957/breast-cancer-awareness-and-prevention-behavior-among-women-of-delhi-india-identifying-barriers-to-early-detection
#13
Subhojit Dey, Surabhi Sharma, Arti Mishra, Suneeta Krishnan, Jyotsna Govil, Preet K Dhillon
BACKGROUND: Globally, breast cancer (BC) has become the leading cause of mortality in women. Awareness and early detection can curb the growing burden of BC and are the first step in the battle against BC. The aim of this qualitative study was to explore the awareness and perceived barriers concerning the early detection of BC. METHODS: A total of 20 focus group discussions (FGDs) were conducted during May 2013-March 2014. Pre-existing themes were used to conduct FGDs; each FGD group consisted of an average of ~10 women (aged ≥18-70 years) who came to participate in a BC awareness workshop...
2016: Breast Cancer: Basic and Clinical Research
https://www.readbyqxmd.com/read/27787708/neuropsychiatric-symptoms-of-cholinergic-deficiency-occur-with-degradation-of-the-projections-from-the-nucleus-basalis-of-meynert
#14
Jan Willem van Dalen, Matthan W A Caan, Willem A van Gool, Edo Richard
This study aims to evaluate the relation between a cluster of neuropsychiatric symptoms related to cholinergic deficiency and degradation of the cortical cholinergic projections which project from the nucleus basalis of Meynert to the cerebral cortex. An atlas of the pathway from the nucleus basalis to the cortex (NbM cortical pathway) was constructed using diffusion tensor imaging and tractography in 87 memory clinic patients. Structural degradation was considered to be represented by lower fractional anisotropy (FA) and higher mean diffusivity (MD)...
October 27, 2016: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/27760559/impact-of-aging-on-host-immune-response-and-survival-in-melanoma-an-analysis-of-3-patient-cohorts
#15
Sarah A Weiss, Joseph Han, Farbod Darvishian, Jeremy Tchack, Sung Won Han, Karolina Malecek, Michelle Krogsgaard, Iman Osman, Judy Zhong
BACKGROUND: Age has been reported as an independent prognostic factor for melanoma-specific survival (MSS). We tested the hypothesis that age impacts the host anti-tumor immune response, accounting for age-specific survival outcomes in three unique melanoma patient cohorts. METHODS: We queried the U.S. population-based Surveillance, Epidemiology, and End Results Program (SEER), the prospective tertiary care hospital-based Interdisciplinary Melanoma Cooperative Group (IMCG) biorepository, and the Cancer Genome Atlas (TCGA) biospecimen database to test the association of patient age at time of melanoma diagnosis with clinicopathologic features and survival outcomes...
October 19, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27757191/barriers-against-implementing-blunt-abdominal-trauma-guidelines-in-a-hospital-a-qualitative-study
#16
Rouhollah Zaboli, Shahram Tofighi, Ali Aghighi, Seyyed Javad Hosaini Shokouh, Nader Naraghi, Hassan Goodarzi
INTRODUCTION: Clinical practice guidelines are structured recommendations that help physicians and patients to make proper decisions when dealing with a specific clinical condition. Because blunt abdominal trauma causes a various range of mild, single-system, and multisystem injuries, early detection will help to reduce mortality and resulting disability. Emergency treatment should be initiated based on CPGs. This study aimed to determine the variables affecting implementing blunt abdominal trauma CPGs in an Iranian hospital...
August 2016: Electronic Physician
https://www.readbyqxmd.com/read/27729798/identifying-candidate-agents-for-lung-adenocarcinoma-by-walking-the-human-interactome
#17
Yajiao Sun, Ranran Zhang, Zhe Jiang, Rongyao Xia, Jingwen Zhang, Jing Liu, Fuhui Chen
Despite recent advances in therapeutic strategies for lung cancer, mortality is still increasing. Therefore, there is an urgent need to identify effective novel drugs. In the present study, we implement drug repositioning for lung adenocarcinoma (LUAD) by a bioinformatics method followed by experimental validation. We first identified differentially expressed genes between LUAD tissues and nontumor tissues from RNA sequencing data obtained from The Cancer Genome Atlas database. Then, candidate small molecular drugs were ranked according to the effect of their targets on differentially expressed genes of LUAD by a random walk with restart algorithm in protein-protein interaction networks...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27723434/mapping-plasmodium-falciparum-mortality-in-africa-between-1990-and-2015
#18
Peter W Gething, Daniel C Casey, Daniel J Weiss, Donal Bisanzio, Samir Bhatt, Ewan Cameron, Katherine E Battle, Ursula Dalrymple, Jennifer Rozier, Puja C Rao, Michael J Kutz, Ryan M Barber, Chantal Huynh, Katya A Shackelford, Matthew M Coates, Grant Nguyen, Maya S Fraser, Rachel Kulikoff, Haidong Wang, Mohsen Naghavi, David L Smith, Christopher J L Murray, Simon I Hay, Stephen S Lim
Background Malaria control has not been routinely informed by the assessment of subnational variation in malaria deaths. We combined data from the Malaria Atlas Project and the Global Burden of Disease Study to estimate malaria mortality across sub-Saharan Africa on a grid of 5 km(2) from 1990 through 2015. Methods We estimated malaria mortality using a spatiotemporal modeling framework of geolocated data (i.e., with known latitude and longitude) on the clinical incidence of malaria, coverage of antimalarial drug treatment, case fatality rate, and population distribution according to age...
22, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27647694/right-insular-infarction-and-mortality-after-ischaemic-stroke
#19
L Hanne, P Brunecker, U Grittner, M Endres, K Villringer, J B Fiebach, M Ebinger
BACKGROUND AND PURPOSE: Several studies have described an association between insular infarction and mortality. Large infarcts often include the insula and lesion size is associated with mortality. We hypothesized that there is an association between insular infarction and mortality independent of lesion volume. METHODS: We included consecutive stroke patients between 1 September 2008 and 11 November 2012 from the 1000Plus database with an acute ischaemic lesion on diffusion-weighted imaging on day 1 and a completed 90-day follow-up...
January 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/27637748/overexpression-of-paxillin-correlates-with-tumor-progression-and-predicts-poor-survival-in-glioblastoma
#20
Li-Hua Sun, Fu-Qiang Yang, Chuan-Bao Zhang, Yi-Ping Wu, Jing-Shan Liang, Shuai Jin, Zheng Wang, Hong-Jun Wang, Zhao-Shi Bao, Zheng-Xiang Yang, Tao Jiang
AIMS: To explore the prognostic and clinicopathological features of glioma with Paxillin (PXN) expression based on a large number of samples. METHODS: RNA sequencing data of 325 glioma samples from Chinese Glioma Genome Atlas (CGGA) database were obtained as discovery set. Three additional datasets were further obtained as validation sets. The protein expression pattern of PXN in glioma was measured by IHC. Kaplan-Meier survival and multivariate Cox analysis were used to estimate the survival distributions...
January 2017: CNS Neuroscience & Therapeutics
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