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genome research

Richard H G Baxter
Both historically and at present, vector control is the most generally effective means of controlling malaria transmission. Insecticides are the predominant method of vector control, but the sterile insect technique (SIT) is a complementary strategy with a successful track record in both agricultural and public health sectors. Strategies of genetic and radiation-induced sterilization of Anopheles have to date been limited by logistical and/or regulatory hurdles. A safe and effective mosquito chemosterilant would therefore be of major utility to future deployment of SIT for malaria control...
October 2016: Chimia
Marie Eliade, Jeremy Skrzypski, Amandine Baurand, Caroline Jacquot, Geoffrey Bertolone, Catherine Loustalot, Charles Coutant, France Guy, Pierre Fumoleau, Yannis Duffourd, Laurent Arnould, Alexandra Delignette, Marie-Martine Padéano, Côme Lepage, Géraldine Raichon-Patru, Axelle Boudrant, Marie-Christine Bône-Lépinoy, Anne-Laure Villing, Aurélie Charpin, Karine Peignaux, Sandy Chevrier, Frédérique Vegran, François Ghiringhelli, Romain Boidot, Nicolas Sevenet, Sarab Lizard, Laurence Faivre
Until recently, the molecular diagnosis of hereditary breast and ovarian cancer (HBOC) was mostly based on BRCA1/2 testing. Next generation sequencing and the recent discovery of new genes involved in HBOC now permit the transfer of genomic capture targeting multiple candidate genes from research to clinical use. However, the implications for the management of patients and their families have not been extensively studied, in particular since some of these genes are not well-established cancer predisposing genes...
October 15, 2016: Oncotarget
Pingping Zhang, Qiuxia Li, Jun Qi, Qing Lv, Xuqi Zheng, Xinyu Wu, Jieruo Gu
OBJECTIVES: To investigate whether vitamin D receptor (VDR) gene polymorphisms confer susceptibility to aankylosing spondylitis (AS) and study its polymorphisms in Han Chinese. METHODS: We screened single nucleotide polymorphisms (SNPs) in the VDR region through genome-wide genotyping chips in AS cases and healthy controls, then used the exome sequencing result to analyze all the potential AS-associated SNPs in the VDR gene. RESULTS: Thirty-two SNPs were found in the VDR gene in the genome-wide genotyping chips and the logistic regression result showed no significant difference between AS cases and controls...
October 25, 2016: International Journal of Rheumatic Diseases
Gous Miah, Mohd Y Rafii, Mohd R Ismail, Adam B Puteh, Harun A Rahim, Mohammad A Latif
BACKGROUND: The rice cultivar MR219 is famous for its better yield and long and fine grain quality; however, it is susceptible to blast disease. The main objective of this study was to introgress blast resistance genes into MR219 through marker-assisted selection (MAS). The rice cultivar MR219 was used as the recurrent parent, and Pongsu Seribu 1 was used as the donor. RESULTS: Marker-assisted foreground selection was performed using RM6836 and RM8225 to identify plants possessing blast resistance genes...
October 24, 2016: Journal of the Science of Food and Agriculture
Daniel Shu Wei Ting, Kara-Anne Tan, Val Phua, Gavin Siew Wei Tan, Chee Wai Wong, Tien Yin Wong
Diabetic retinopathy (DR), a leading cause of acquired vision loss, is a microvascular complication of diabetes. While traditional risk factors for diabetic retinopathy including longer duration of diabetes, poor blood glucose control, and dyslipidemia are helpful in stratifying patient's risk for developing retinopathy, many patients without these traditional risk factors develop DR; furthermore, there are persons with long diabetes duration who do not develop DR. Thus, identifying biomarkers to predict DR or to determine therapeutic response is important...
December 2016: Current Diabetes Reports
Kusum Mehla, Jayashree Ramana
Campylobacter jejuni remains a major cause of human gastroenteritis with estimated annual incidence rate of 450 million infections worldwide. C. jejuni is a major burden to public health in both socioeconomically developing and industrialized nations. Virulence determinants involved in C. jejuni pathogenesis are multifactorial in nature and not yet fully understood. Despite the completion of the first C. jejuni genome project in 2000, there are currently no vaccines in the market against this pathogen. Traditional vaccinology approach is an arduous and time extensive task...
October 24, 2016: Functional & Integrative Genomics
Rajarsi Mandal, Yasin Şenbabaoğlu, Alexis Desrichard, Jonathan J Havel, Martin G Dalin, Nadeem Riaz, Ken-Wing Lee, Ian Ganly, A Ari Hakimi, Timothy A Chan, Luc G T Morris
Recent clinical trials have demonstrated a clear survival advantage in advanced head and neck squamous cell carcinoma (HNSCC) patients treated with immune checkpoint blockade. These emerging results reveal that HNSCC is one of the most promising frontiers for immunotherapy research. However, further progress in head and neck immuno-oncology will require a detailed understanding of the immune infiltrative landscape found in these tumors. We leveraged transcriptome data from 280 tumors profiled by The Cancer Genome Atlas (TCGA) to comprehensively characterize the immune landscape of HNSCC in order to develop a rationale for immunotherapeutic strategies in HNSCC and guide clinical investigation...
October 20, 2016: JCI Insight
Suyeun Yu, Eunil Lee, Bodokhsuren Tsogbadrakh, Gwang-Ic Son, Mari Kim
Aging is a universal, irreversible process accompanied by physiological declines that culminate in death. Rapid progress in gerontology research has revealed that aging can be slowed through mild stress-induced hormesis. We previously reported that hyperbaric normoxia (HN, 2 atm absolute pressure with 10% O2) induces a cytoprotective response in vitro by regulating fibronectin. In the present study, we investigated the hormetic effects of prenatal HN exposure on Drosophila healthspan related to molecular defense mechanisms...
October 24, 2016: Aging
Michael M Kasumovic, Zhiliang Chen, Marc R Wilkins
BACKGROUND: Ecological and evolutionary model organisms have provided extensive insight into the ecological triggers, adaptive benefits, and evolution of life-history driven developmental plasticity. Despite this, we still have a poor understanding of the underlying genetic changes that occur during shifts towards different developmental trajectories. The goal of this study is to determine whether we can identify underlying gene expression patterns that can describe the different life-history trajectories individuals follow in response to social cues of competition...
October 24, 2016: BMC Genomics
Agata Swiatkowska, Paulina Zydowicz, Joanna Sroka, Jerzy Ciesiołka
The p53 tumour suppressor protein is one of the major factors responsible for cell cycle regulation and protection against cancer development. This is why it is often referred to as "the guardian of the genome". On the other hand, mutations in the p53 gene are connected with more than 50% of tumours of various types. The thirty-six years of extensive research on the p53 gene and its protein products have shown how sophisticated the p53-based cell system control is. An additional level of complexity of the p53 research is connected with at least twelve p53 isoforms which have been identified in the cell...
October 25, 2016: Acta Biochimica Polonica
Jinghui Zhang, Kelly McCastlain, Hiroki Yoshihara, Beisi Xu, Yunchao Chang, Michelle L Churchman, Gang Wu, Yongjin Li, Lei Wei, Ilaria Iacobucci, Yu Liu, Chunxu Qu, Ji Wen, Michael Edmonson, Debbie Payne-Turner, Kerstin B Kaufmann, Shin-Ichiro Takayanagi, Erno Wienholds, Esmé Waanders, Panagiotis Ntziachristos, Sofia Bakogianni, Jingjing Wang, Iannis Aifantis, Kathryn G Roberts, Jing Ma, Guangchun Song, John Easton, Heather L Mulder, Xiang Chen, Scott Newman, Xiaotu Ma, Michael Rusch, Pankaj Gupta, Kristy Boggs, Bhavin Vadodaria, James Dalton, Yanling Liu, Marcus L Valentine, Li Ding, Charles Lu, Robert S Fulton, Lucinda Fulton, Yashodhan Tabib, Kerri Ochoa, Meenakshi Devidas, Deqing Pei, Cheng Cheng, Jun Yang, William E Evans, Mary V Relling, Ching-Hon Pui, Sima Jeha, Richard C Harvey, I-Ming L Chen, Cheryl L Willman, Guido Marcucci, Clara D Bloomfield, Jessica Kohlschmidt, Krzysztof Mrózek, Elisabeth Paietta, Martin S Tallman, Wendy Stock, Matthew C Foster, Janis Racevskis, Jacob M Rowe, Selina Luger, Steven M Kornblau, Sheila A Shurtleff, Susana C Raimondi, Elaine R Mardis, Richard K Wilson, John E Dick, Stephen P Hunger, Mignon L Loh, James R Downing, Charles G Mullighan
Chromosomal rearrangements deregulating hematopoietic transcription factors are common in acute lymphoblastic leukemia (ALL). Here we show that deregulation of the homeobox transcription factor gene DUX4 and the ETS transcription factor gene ERG is a hallmark of a subtype of B-progenitor ALL that comprises up to 7% of B-ALL. DUX4 rearrangement and overexpression was present in all cases and was accompanied by transcriptional deregulation of ERG, expression of a novel ERG isoform, ERGalt, and frequent ERG deletion...
October 24, 2016: Nature Genetics
Heather J Ruskin
High-throughput microarray technologies have long been a source of data for a wide range of biomedical investigations. Over the decades, variants have been developed and sophistication of measurements has improved, with generated data providing both valuable insight and considerable analytical challenge. The cost-effectiveness of microarrays, as well as their fundamental applicability, made them a first choice for much early genomic research and efforts to improve accessibility, quality and interpretation have continued unabated...
October 21, 2016: Microarrays
S Des Roches, R Sollmann, K Calhoun, A Rothstein, E B Rosenblum
Measuring links among genotype, phenotype, and survival in the wild has long been a focus of studies of adaptation. We conducted a four-year capture-recapture study to measure survival by genotype and phenotype in the Southwestern Fence Lizard (Sceloporus cowlesi) at the White Sands ecotone (transition area between white sands and dark soil habitats). We report several unanticipated findings. First, in contrast with previous work showing that cryptic blanched colouration in S. cowlesi from the heart of the dunes is associated with mutations in the melanocortin-1 receptor gene (Mc1r), ecotonal S...
October 24, 2016: Molecular Ecology
Zitian Chen, Yusi Fu, Fangli Zhang, Lu Liu, Naiqing Zhang, Dong Zhou, Junrui Yang, Yuhong Pang, Yanyi Huang
Many on-chip approaches that use flow-focusing to pinch the continuous aqueous phase into droplets have become the most popular methods that provide monodisperse emulsion droplets. However, not every lab can easily adapt a microfluidic workflow into their familiar protocols. We develop an off-chip approach, spinning micro-pipette liquid emulsion (SiMPLE) generator, to produce highly stable monodisperse water-in-oil emulsions using a moving micropipette to disperse the aqueous phase in an oil-filled microcentrifuge tube...
October 24, 2016: Lab on a Chip
Hillary T Graham, Daniel M Rotroff, Skylar W Marvel, John B Buse, Tammy M Havener, Alyson G Wilson, Michael J Wagner, Alison A Motsinger-Reif
Given the high costs of conducting a drug-response trial, researchers are now aiming to use retrospective analyses to conduct genome-wide association studies (GWAS) to identify underlying genetic contributions to drug-response variation. To prevent confounding results from a GWAS to investigate drug response, it is necessary to account for concomitant medications, defined as any medication taken concurrently with the primary medication being investigated. We use data from the Action to Control Cardiovascular Disease (ACCORD) trial in order to implement a novel scoring procedure for incorporating concomitant medication information into a linear regression model in preparation for GWAS...
2016: Frontiers in Genetics
M H Kuniholm, X Xie, K Anastos, X Xue, L Reimers, A L French, S J Gange, S G Kassaye, A Kovacs, T Wang, B E Aouizerat, H D Strickler
Human leucocyte antigen (HLA) genes play a central role in response to pathogens and in autoimmunity. Research to understand the effects of HLA genes on health has been limited because HLA genotyping protocols are labour intensive and expensive. Recently, algorithms to impute HLA genotype data using genome-wide association study (GWAS) data have been published. However, imputation accuracy for most of these algorithms was based primarily on training data sets of European ancestry individuals. We considered performance of two HLA-dedicated imputation algorithms - SNP2HLA and HIBAG - in a multiracial population of n = 1587 women with HLA genotyping data by gold standard methods...
October 24, 2016: International Journal of Immunogenetics
Zhongfeng Li, Lingxue Jiang, Yansong Ma, Zhongyan Wei, Huilong Hong, Zhangxiong Liu, Jinhui Lei, Ying Liu, Rongxia Guan, Yong Guo, Longguo Jin, Lijuan Zhang, Yinghui Li, Yulong Ren, Wei He, Ming Liu, Nang Myint Phyu Sin Htwe, Lin Liu, Bingfu Guo, Jian Song, Bing Tan, Guifeng Liu, Maiquan Li, Xianli Zhang, Bo Liu, Xuehui Shi, Sining Han, Sunan Hua, Fulai Zhou, Lili Yu, Yanfei Li, Shuang Wang, Jun Wang, Ruzhen Chang, Lijuan Qiu
Mutagenized populations have provided important materials for introducing variation and identifying gene function in plants. In this study, an ethyl methanesulfonate (EMS) -induced soybean (Glycine max) population, consisting of 21,600 independent M2 lines, was developed. Over one thousand M4 (5) families, with diverse abnormal phenotypes for seed composition, seed shape, plant morphology, and maturity that are stably expressed across different environments and generations were identified. Phenotypic analysis of the population led to the identification of a yellow pigmentation mutant, gyl, that displayed significantly decreased chlorophyll (Chl) content and abnormal chloroplast development...
October 24, 2016: Journal of Integrative Plant Biology
Jalayne J Arias, Genevieve Pham-Kanter, Rosa Gonzalez, Eric G Campbell
Recent policies and proposed regulations, including the Notice of Proposed Rulemaking for the Common Rule and the 2014 NIH Genetic Data Sharing Policy, seek to improve research subject protections. Protections for subjects whose genetic data is shared are critical to reduce risks such as loss of confidentiality, stigma, and discrimination. In the article 'It depends whose data are being shared: considerations for genomic data sharing policies', Robinson et al. provide a response to our article, 'The Growth and Gaps of Genetic Data Sharing Policies'...
November 2015: Journal of Law and the Biosciences
Jill O Robinson, Melody J Slashinski, Elizabeth Chiao, Amy L McGuire
There is an urgent need for consistent data sharing policies that promote the advancement of science while respecting the values and interests of those providing their genetic data for research. Responding to the article of Jalayne J. Arias, Genevieve Pham-Kanter, and Eric G. Campbell, 'The Growth and Gaps of Genetic Data Sharing Policies in the United States', this commentary further explores the challenges of human subjects' protection in existing data sharing policies. We will elaborate on the need for data sharing policies to accommodate variation in individual and group preferences around data sharing and privacy concerns by comparing our previously published data on patients' and parents' consent to data sharing and attitudes about privacy to data from focus groups with HIV-positive, underserved individuals who were asked about their willingness to participate in genetic research and share their data broadly...
November 2015: Journal of Law and the Biosciences
Anatoliy I Yashin, Konstantin G Arbeev, Deqing Wu, Liubov Arbeeva, Alexander Kulminski, Irina Kulminskaya, Igor Akushevich, Svetlana V Ukraintseva
BACKGROUND AND OBJECTIVE: To clarify mechanisms of genetic regulation of human aging and longevity traits, a number of genome-wide association studies (GWAS) of these traits have been performed. However, the results of these analyses did not meet expectations of the researchers. Most detected genetic associations have not reached a genome-wide level of statistical significance, and suffered from the lack of replication in the studies of independent populations. The reasons for slow progress in this research area include low efficiency of statistical methods used in data analyses, genetic heterogeneity of aging and longevity related traits, possibility of pleiotropic (e...
2016: North American Actuarial Journal: NAAJ
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