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Gene-environment interaction

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https://www.readbyqxmd.com/read/28437656/a-gene-environment-interaction-analysis-of-plasma-selenium-with-prevalent-and-incident-diabetes-the-hortega-study
#1
Inmaculada Galan-Chilet, Maria Grau-Perez, Griselda De Marco, Eliseo Guallar, Juan Carlos Martin-Escudero, Alejandro Dominguez-Lucas, Isabel Gonzalez-Manzano, Raul Lopez-Izquierdo, Laisa Socorro Briongos-Figuero, Josep Redon, Felipe Javier Chaves, Maria Tellez-Plaza
BACKGROUND: Selenium and single-nucleotide-polymorphisms in selenoprotein genes have been associated to diabetes. However, the interaction of selenium with genetic variation in diabetes and oxidative stress-related genes has not been evaluated as a potential determinant of diabetes risk. METHODS: We evaluated the cross-sectional and prospective associations of plasma selenium concentrations with type 2 diabetes, and the interaction of selenium concentrations with genetic variation in candidate polymorphisms, in a representative sample of 1452 men and women aged 18-85 years from Spain...
April 14, 2017: Redox Biology
https://www.readbyqxmd.com/read/28437568/insights-into-deep-sea-adaptations-and-host-symbiont-interactions-a-comparative-transcriptome-study-on-bathymodiolus-mussels-and-their-coastal-relatives
#2
Ping Zheng, Minxiao Wang, Chaolun Li, Xiaoqing Sun, Xiaocheng Wang, Yan Sun, Song Sun
Mussels (Bivalve: Mytilidae) have adapted to various habitats, from freshwater to the deep sea. To understand their adaptive characteristics in different habitats, particularly in the bathymodiolin mussels in deep-sea chemosynthetic ecosystems, we conducted a comparative transcriptomic analysis between deep-sea bathymodiolin mussels and their shallow-water relatives. A number of gene families related to stress responses were shared across all mussels, without specific or significantly expanded families in deep-sea species, indicating that all mussels are capable of adapting to diverse harsh environments, but that different members of the same gene family may be preferentially utilized by different species...
April 24, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28437556/inheritance-of-bacterial-spot-resistance-in-capsicum-annuum-var-annuum
#3
L R A Silva, R Rodrigues, S Pimenta, J W S Correa, M S B Araújo, C S Bento, C P Sudré
Since 2008, Brazil is the largest consumer of agrochemicals, which increases production costs and risks of agricultural products, environment, and farmers' contamination. Sweet pepper, which is one of the main consumed vegetables in the country, is on top of the list of the most sprayed crops. The bacterial spot, caused by Xanthomonas spp, is one of the most damaging diseases of pepper crops. Genetic resistant consists of a suitable way of disease control, but development of durable resistant cultivars as well as understanding of plant-bacterium interaction is being a challenge for plant breeders and pathologists worldwide...
April 20, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28436986/adiposity-amplifies-the-genetic-risk-of-fatty-liver-disease-conferred-by-multiple-loci
#4
Stefan Stender, Julia Kozlitina, Børge G Nordestgaard, Anne Tybjærg-Hansen, Helen H Hobbs, Jonathan C Cohen
Complex traits arise from the interplay between genetic and environmental factors. The actions of these factors usually appear to be additive, and few compelling examples of gene-environment synergy have been documented. Here we show that adiposity significantly amplifies the effect of three sequence variants (encoding PNPLA3 p.I148M, TM6SF2 p.E167K, and GCKR p.P446L) associated with nonalcoholic fatty liver disease (NAFLD). Synergy between adiposity and genotype promoted the full spectrum of NAFLD, from steatosis to hepatic inflammation to cirrhosis...
April 24, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28431792/changes-to-histone-modifications-following-prenatal-alcohol-exposure-an-emerging-picture
#5
REVIEW
Eric J Chater-Diehl, Benjamin I Laufer, Shiva M Singh
Epigenetic mechanisms are important for facilitating gene-environment interactions in many disease etiologies, including Fetal Alcohol Spectrum Disorders (FASD). Extensive research into the role of DNA methylation and miRNAs in animal models has illuminated the complex role of these mechanisms in FASD. In contrast, histone modifications have not been as well researched, due in part to being less stable than DNA methylation and less well-characterized in disease. It is now apparent that even changes in transient marks can have profound effects if they alter developmental trajectories...
February 4, 2017: Alcohol
https://www.readbyqxmd.com/read/28430897/genetic-variants-associated-with-the-root-system-architecture-of-oilseed-rape-brassica-napus-l-under-contrasting-phosphate-supply
#6
Xiaohua Wang, Yanling Chen, Catherine L Thomas, Guangda Ding, Ping Xu, Dexu Shi, Fabian Grandke, Kemo Jin, Hongmei Cai, Fangsen Xu, Bin Yi, Martin R Broadley, Lei Shi
Breeding crops with ideal root system architecture for efficient absorption of phosphorus is an important strategy to reduce the use of phosphate fertilizers. To investigate genetic variants leading to changes in root system architecture, 405 oilseed rape cultivars were genotyped with a 60K Brassica Infinium SNP array in low and high P environments. A total of 285 single-nucleotide polymorphisms were associated with root system architecture traits at varying phosphorus levels. Nine single-nucleotide polymorphisms corroborate a previous linkage analysis of root system architecture quantitative trait loci in the BnaTNDH population...
April 19, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28430429/potential-glucocorticoid-and-mineralocorticoid-effects-of-nine-organophosphate-flame-retardants
#7
Quan Zhang, Jinghua Wang, Jianqiang Zhu, Jing Liu, Meirong Zhao
Organophosphate flame retardants (OPFRs), as alternatives of polybrominated diphenyl ethers (PBDEs), have been frequently detected in the environment and biota, and could pose adverse effects on organisms. However, information on the potential endocrine disruption of OPFRs, especially their effects on steroid hormone receptors, such as glucocorticoid and mineralocorticoid receptors (GR/MR), is limited. In this study, the dual-luciferase reporter gene assay via GR/MR and a H295R steroidogenesis assay were employed to evaluate the endocrine disruption of nine OPFRs...
April 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28429538/finding-a-partner-in-the-ocean-molecular-and-evolutionary-bases-of-the-response-to-sexual-cues-in-a-planktonic-diatom
#8
Swaraj Basu, Shrikant Patil, Daniel Mapleson, Monia Teresa Russo, Laura Vitale, Cristina Fevola, Florian Maumus, Raffaella Casotti, Thomas Mock, Mario Caccamo, Marina Montresor, Remo Sanges, Maria Immacolata Ferrante
Microalgae play a major role as primary producers in aquatic ecosystems. Cell signalling regulates their interactions with the environment and other organisms, yet this process in phytoplankton is poorly defined. Using the marine planktonic diatom Pseudo-nitzschia multistriata, we investigated the cell response to cues released during sexual reproduction, an event that demands strong regulatory mechanisms and impacts on population dynamics. We sequenced the genome of P. multistriata and performed phylogenomic and transcriptomic analyses, which allowed the definition of gene gains and losses, horizontal gene transfers, conservation and evolutionary rate of sex-related genes...
April 21, 2017: New Phytologist
https://www.readbyqxmd.com/read/28429283/use-of-hormones-tissue-factors-and-bioengineering-in-the-management-of-hypospadias
#9
Aparajita Mitra, Yogesh Kumar Sarin
Hypospadiology is a rapidly evolving field. Progress in the understanding of how hormonal therapy affects the growth of the phallus has allowed surgeons to optimize the tissues for surgery. But conflicting data from a number of studies and a lack of consensus on drugs, their dosing, mode of delivery and timing of use means that the creation of protocols is unlikely to happen in the near future. Nonetheless, there is a hope and the standardization of scientific reporting will make it easier to compare data at the global level...
April 21, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28428977/19th-workshop-of-the-international-stroke-genetics-consortium-april-28-29-2016-boston-massachusetts-usa-2016-001-mri-defined-cerebrovascular-genomics-the-charge-consortium
#10
S Debette, Y Saba, D Vojinovic, X Jian, H Adams, G Chauhan, M Sargurupremraj, S Kaffashian, J Ding, J C Bis, P Nyquist, K Mather, C Van Duijn, L J Launer, M A Ikram, H Schmidt, W T Longstreth, M Fornage, S Seshadri
The CHARGE consortium is an investigator-initiated collaboration to facilitate meta-analyses of genome-wide association studies (GWAS) and genomic analyses based on next generation sequencing (NGS), among multiple large and well-phenotyped population-based cohort studies around the world (http://www.chargeconsortium.com). Within the neuro-CHARGE working group, we are presenting an update of ongoing genomic studies on MRI-markers of cerebrovascular disease. Large population-based studies have shown that the burden of cerebrovascular disease extends far beyond that of clinical stroke...
March 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28428792/identification-of-candidate-genes-and-biosynthesis-pathways-related-to-fertility-conversion-by-wheat-ktm3315a-transcriptome-profiling
#11
Jiali Ye, Yang Duan, Gan Hu, Xingxia Geng, Gaoming Zhang, Pengjiao Yan, Zihan Liu, Lingli Zhang, Xiyue Song
The Aegilops kotschyi thermo-sensitive cytoplasmic male sterility (K-TCMS) system may facilitate hybrid wheat (Triticum aestivum L.) seed multiplication and production. The K-TCMS line is completely male sterile during the normal wheat-growing season, whereas its fertility can be restored in a high-temperature environment. To elucidate the molecular mechanisms responsible for male sterility/fertility conversion and candidate genes involved with pollen development in K-TCMS, we employed RNA-seq to sequence the transcriptomes of anthers from K-TCMS line KTM3315A during development under sterile and fertile conditions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28428742/a-set-based-mixed-effect-model-for-gene-environment-interaction-and-its-application-to-neuroimaging-phenotypes
#12
Changqing Wang, Jianping Sun, Bryan Guillaume, Tian Ge, Derrek P Hibar, Celia M T Greenwood, Anqi Qiu
Imaging genetics is an emerging field for the investigation of neuro-mechanisms linked to genetic variation. Although imaging genetics has recently shown great promise in understanding biological mechanisms for brain development and psychiatric disorders, studying the link between genetic variants and neuroimaging phenotypes remains statistically challenging due to the high-dimensionality of both genetic and neuroimaging data. This becomes even more challenging when studying gene-environment interaction (G×E) on neuroimaging phenotypes...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28428114/epigenetics-the-third-pillar-of-nitric-oxide-signaling
#13
REVIEW
Samantha Socco, Rhea C Bovee, Marianne B Palczewski, Jason R Hickok, Douglas D Thomas
Nitric oxide (NO), the endogenously produced free radical signaling molecule, is generally thought to function via its interactions with heme-containing proteins, such as soluble guanylyl cyclase (sGC), or by the formation of protein adducts containing nitrogen oxide functional groups (such as S-nitrosothiols, 3-nitrotyrosine, and dinitrosyliron complexes). These two types of interactions result in a multitude of down-stream effects that regulate numerous functions in physiology and disease. Of the numerous purported NO signaling mechanisms, epigenetic regulation has gained considerable interest in recent years...
April 17, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28427886/identification-of-excipients-for-stabilizing-fiberless-adenovirus-as-biopharmaceuticals
#14
Grit Kupgan, Shyamal P Choudhari, Nicholas H Flynn, Adane Nigatu, Sravanthi Vupputuri, William D Picking, Wendy L Picking, Joshua D Ramsey
Reducing the promiscuous tropism of native adenovirus by using fiberless adenovirus is advantageous towards its use as a gene therapy vector or vaccine component. The removal of the fiber protein on native adenovirus abrogates several undesirable interactions; however, this approach decreases the particle's physical stability. In order to create stable fiberless adenovirus for pharmaceutical use, the effects of temperature and pH on the particle's stability profile must be addressed. Our results indicate that the stability of fiberless adenovirus is increased when it is stored in mildly acidic conditions around pH 6...
April 17, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28427698/novel-functional-polymorphism-in-igf-1-gene-associated-with-multiple-sclerosis-a-new-insight-to-ms
#15
Majid Shahbazi, Reza Abdolmohammadi, Hamid Ebadi, Touraj Farazmandfar
BACKGROUND: Interactions between several genes and environment may play a role in susceptibility to multiple sclerosis (MS). The IGF-1 plays a key role in proliferation, maintenance and survival of nerve cells. Therefore, we hypothesized that IGF-1 may be a target for prediction and control MS. We aimed to analysis IGF-1 gene promoter sequence, to investigate the effect of the single nucleotide variants on IGF-1 expression and its association with MS. METHODS: We enrolled 339 MS patients and 431 healthy controls...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28427149/interaction-between-ppar-%C3%AE-and-sorl1-gene-with-late-onset-alzheimer-s-disease-in-chinese-han-population
#16
Hui Zhang, Wei Zheng, Linlin Hua, Yutong Wang, Jinfeng Li, Hongying Bai, Shanshan Wang, Mingyao Du, Xuelian Ma, Chunyang Xu, Xiaodong Li, Bin Gong, Yunliang Wang
AIMS: To investigate the impact of sortilin-related receptor 1 gene 1 (SORL1) and peroxisome proliferator activated receptor gamma (PPAR G) gene single nucleotide polymorphisms (SNPs), gene- gene and gene- environment interactions and haplotype on late-onset Alzheimer's disease (LOAD) risk. METHODS: Hardy-Weinberg equilibrium (HWE), haplotype analysis and pairwise linkage disequilibrium (LD) analysis were investigated by using SNPStats (available online at http://bioinfo...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426829/joint-genetic-analysis-using-variant-sets-reveals-polygenic-gene-context-interactions
#17
Francesco Paolo Casale, Danilo Horta, Barbara Rakitsch, Oliver Stegle
Joint genetic models for multiple traits have helped to enhance association analyses. Most existing multi-trait models have been designed to increase power for detecting associations, whereas the analysis of interactions has received considerably less attention. Here, we propose iSet, a method based on linear mixed models to test for interactions between sets of variants and environmental states or other contexts. Our model generalizes previous interaction tests and in particular provides a test for local differences in the genetic architecture between contexts...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28424482/logistic-bayesian-lasso-for-genetic-association-analysis-of-data-from-complex-sampling-designs
#18
Yuan Zhang, Jonathan N Hofmann, Mark P Purdue, Shili Lin, Swati Biswas
Detecting gene-environment interactions with rare variants is critical in dissecting the etiology of common diseases. Interactions with rare haplotype variants (rHTVs) are of particular interest. At the same time, complex sampling designs, such as stratified random sampling, are becoming increasingly popular for designing case-control studies, especially for recruiting controls. The US Kidney Cancer Study (KCS) is an example, wherein all available cases were included while the controls at each site were randomly selected from the population by frequency matching with cases based on age, sex and race...
April 20, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28423629/polymorphisms-in-human-telomerase-reverse-transcriptase-htert-gene-gene-gene-and-gene-smoking-interaction-with-susceptibility-to-gastric-cancer-in-chinese-han-population
#19
Jian Zhang, Hui Ju, Jun-Ru Gao, Xue-Long Jiao, Yun Lu
AIMS: To investigate the association of telomerase reverse transcriptase (TERT) gene polymorphisms and additional gene-gene and gene- environment interaction with gastric cancer (GC) risk. RESULTS: GC risk was significantly higher in carriers of G allele of rs2736100 than those with TT genotype (TG+ GG versus TT), adjusted OR (95%CI) =1.68 (1.26-2.17), and higher in carriers of G allele of rs2853669 than those with AA genotype (AG+ GG versus AA), adjusted OR (95%CI) = 1...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423081/long-wavelength-sensitive-opsin-lws-gene-variability-in-neotropical-cichlids-teleostei-cichlidae
#20
Thomaz M C Fabrin, Sonia Maria A P Prioli, Alberto José Prioli
Cichlid fishes are an important group in evolutionary biology due to their fast speciation. This group depends widely of vision for feeding and reproduction. During the evolutionary process it plays a significant role in interspecific and intraspecific recognition and in its ecology. The molecular basis of vision is formed by the interaction of the protein opsin and retinal chromophore. Long-wavelength sensitive opsin (LWS) gene is the most variable among the opsin genes and it has an ecological significance...
January 2017: Anais da Academia Brasileira de Ciências
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