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https://www.readbyqxmd.com/read/28535254/invited-commentary-cassel-s-the-contribution-of-the-social-environment-to-host-resistance-a-modern-classic
#1
Sherman A James
John Cassel's 1976 paper "The Contribution of the Social Environment to Host Resistance" (Am J Epidemiol. 1976;104(2):107-123) is widely regarded as a classic in epidemiology. He makes the compelling argument that the quality of a person's social relationships, that is, the degree to which her relationships are more stressful than supportive (or vice versa) influences her susceptibility to disease independent of genetic endowment, diet, physical activity, etc. Cassel's provocative thesis was anchored in a cogent synthesis of findings from animal experiments and observational studies on diverse human populations...
May 23, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28535172/invited-commentary-the-framingham-offspring-study-a-pioneering-investigation-into-familial-aggregation-of-cardiovascular-risk
#2
JoAnn E Manson, Shari S Bassuk
Launched in 1948, the Framingham Heart Study was a seminal prospective cohort study of 5,209 adult residents of Framingham, Massachusetts, that was designed to uncover the determinants and natural history of coronary heart disease. Data from this original cohort established the cardiac threat posed by high blood pressure, high cholesterol, smoking, obesity, physical inactivity, diabetes, and other factors. In the late 1960s, investigators conceived the innovative idea of assembling a second cohort that comprised the adult children of the original study population (and these children's spouses)...
May 23, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28534127/genetics-of-triglycerides-and-the-risk-of-atherosclerosis
#3
REVIEW
Jacqueline S Dron, Robert A Hegele
PURPOSE OF REVIEW: Plasma triglycerides are routinely measured with a lipid profile, and elevated plasma triglycerides are commonly encountered in the clinic. The confounded nature of this trait, which is correlated with numerous other metabolic perturbations, including depressed high-density lipoprotein cholesterol (HDL-C), has thwarted efforts to directly implicate triglycerides as causal in atherogenesis. Human genetic approaches involving large-scale populations and high-throughput genomic assessment under a Mendelian randomization framework have undertaken to sort out questions of causality...
July 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28532585/genetics-of-sudden-cardiac-death-an-epidemiologic-perspective
#4
Stefan Kääb
Despite a positive family history of SCD being associated with increased risk for SCD in the offspring, the genetic contribution to SCD in general and in proportion to the population at risk is considered to be small. The majority of SCD is rated a common disease with multi allelic susceptibility markers of minor effect size each. A smaller proportion of obvious familial forms of early onset SCD, or SCD in the young on the other hand is clearly linked to genetics. Here frequently, rare genetic variants with strong effects carry the major risk for SCD...
June 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28530119/update-in-sleep-disordered-breathing-2016
#5
Najib T Ayas, Luciano F Drager, Mary J Morrell, Vsevolod Y Polotsky
The field of sleep disordered breathing has continued to evolve with many important articles published in the last year. In this review, we have summarized some of the key articles relevant to sleep disordered breathing that have been published in the Journal and selected articles published elsewhere in the last year; these have included landmark randomized trials concerning sleep apnea treatment in the prevention of adverse cardiac outcomes, basic science and animal studies, genetic studies, and analyses of epidemiologic cohorts...
May 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28529940/coronary-artery-aneurysms-a-review-of-the-epidemiology-pathophysiology-diagnosis-and-treatment
#6
REVIEW
Sara Abou Sherif, Ozge Ozden Tok, Özgür Taşköylü, Omer Goktekin, Ismail Dogu Kilic
Coronary artery aneurysms (CAAs) are uncommon and describe a localized dilatation of a coronary artery segment more than 1.5-fold compared with adjacent normal segments. The incidence of CAAs varies from 0.3 to 5.3%. Ever since the dawn of the interventional era, CAAs have been increasingly diagnosed on coronary angiography. Causative factors include atherosclerosis, Takayasu arteritis, congenital disorders, Kawasaki disease (KD), and percutaneous coronary intervention. The natural history of CAAs remains unclear; however, several recent studies have postulated the underlying molecular mechanisms of CAAs, and genome-wide association studies have revealed several genetic predispositions to CAA...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28529729/characterization-of-the-novel-in1059-harbouring-vim-gene-cassette
#7
Dongguo Wang, Jinhong Yang, Meiyu Fang, Wei He, Ying Zhang, Caixia Liu, Dongsheng Zhou
BACKGROUND: VIM-type enzyme encodes the most widely acquired metallo-β-lactamases in Gram- negative bacteria. To obtain current epidemiological data for integrons from enterobacteriae in hospital, the study characterizes the genetic structure in In1059 by comparison with In846 integrons harbouring VIM gene and other class 1 integrons including In37, In62, In843 and In1021 with the aim of identifying the putative mechanisms involved integron mobilization and infer evolution of relevant integrons...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28529688/the-prevalence-temporal-and-spatial-trends-in-bulk-tank-equivalent-milk-fat-depression-in-irish-milk-recorded-herds
#8
Catherine I Carty, Alan G Fahey, Morgan R Sheehy, Steve Taylor, Ian J Lean, Conor G McAloon, Luke O'Grady, Finbar J Mulligan
BACKGROUND: Milk fat is important in terms of economic value and in its potential to provide information concerning cow diet and health. Under current milk payment schemes in Ireland farmer income is directly linked to milk fat production. METHODS: A descriptive analysis of milk fat depression (MFD) as calculated from test day milk recording data across all milk recording herds from 2004 to 2014 was undertaken. A dataset of 17 million test day records was used to calculate the prevalence of MFD in Irish milk recorded herds and to create a graphical description of the major descriptive epidemiological trends in milk fat depression in time and space in Ireland...
2017: Irish Veterinary Journal
https://www.readbyqxmd.com/read/28529571/epigenetic-modulation-associated-with-carcinogenesis-and-prognosis-of-human-gastric-cancer
#9
Fuminori Sonohara, Yoshikuni Inokawa, Masamichi Hayashi, Yasuhiro Kodera, Shuji Nomoto
Gastric cancer (GC) is a leading cause of cancer-related death, particularly in Asia. Epidemiological and other clinical studies have identified an association between a number of risk factors, including Helicobacter pylori, and GC. A number of studies have also examined genetic changes associated with the development and progression of GC. When considering the clinical significance of the expression of a specific gene, its epigenetic modulation should be considered. Epigenetic modulation appears to be a primary driver of changes in gastric tissue that promotes carcinogenesis and progression of GC and other neoplasms...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28527289/-characterization-of-patients-with-skeletal-genetic-diseases-in-a-colombian-referral-center
#10
Harvy Mauricio Velasco, Lina Patricia Buelvas
INTRODUCTION: Short height in Colombia has an estimated prevalence of 10%. The 2009 Nosology and Classification of Skeletal Genetic Diseases described 456 clinical conditions using biochemical, molecular and radiological criteria for diagnosis. OBJECTIVE: To analyze demographic, epidemiological and clinical variables in a group of patients with skeletal genetic diseases referred to the Instituto de Ortopedia Infantil Roosevelt. MATERIALS AND METHODS: Patients referred between 2008 and 2014 were analyzed filtering 167 diagnoses of the International Classification of Diseases, 10th revision (ICD 10), related to skeletal genetic diseases...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527252/-characterization-of-clinical-isolates-of-mycobacterium-tuberculosis-from-hiv-positive-individuals-in-colombia-2012
#11
Claudia Castro, Alba Ricardo, Angie Zabaleta, Claudia Llerena, Gloria Puerto
INTRODUCTION: One third of the increase in tuberculosis cases is attributed to the spread of HIV. In 2012, 1,397 HIV-associated tuberculosis cases were reported in Colombia, i.e., 11.8% of the total cases. Molecular epidemiology tools help to understand the transmission of tuberculosis. OBJECTIVE: To characterize clinical isolates of Mycobacterium tuberculosis derived from HIV-infected individuals, received at the Laboratorio Nacional de Referencia in the Instituto Nacional de Salud...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527212/apolipoprotein-e4-gender-body-mass-index-inflammation-insulin-resistance-and-air-pollution-interactions-recipe-for-alzheimer-s-disease-development-in-mexico-city-young-females
#12
Lilian Calderón-Garcidueñas, Suzanne M de la Monte
Given the epidemiological trends of increasing Alzheimer's disease (AD) and growing evidence that exposure and lifestyle factors contribute to AD risk and pathogenesis, attention should be paid to variables such as air pollution, in order to reduce rates of cognitive decline and dementia. Exposure to fine particulate matter (PM2.5) and ozone (O3) above the US EPA standards is associated with AD risk. Mexico City children experienced pre- and postnatal high exposures to PM2.5, O3, combustion-derived iron-rich nanoparticles, metals, polycyclic aromatic hydrocarbons, and endotoxins...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28525307/exploiting-genetic-information-to-trace-plant-virus-dispersal-in-landscapes
#13
Coralie Picard, Sylvie Dallot, Kirstyn Brunker, Karine Berthier, Phillipe Roumagnac, Samuel Soubeyrand, Emmanuel Jacquot, Gaël Thébaud
During the past decade, knowledge of pathogen life history has greatly benefited from the advent and development of molecular epidemiology. This branch of epidemiology uses information on pathogen variation at the molecular level to gain insights into a pathogen's niche and evolution and to characterize pathogen dispersal within and between host populations. Here, we review molecular epidemiology approaches that have been developed to trace plant virus dispersal in landscapes. In particular, we highlight how virus molecular epidemiology, nourished with powerful sequencing technologies, can provide novel insights at the crossroads between the blooming fields of landscape genetics, phylogeography, and evolutionary epidemiology...
May 19, 2017: Annual Review of Phytopathology
https://www.readbyqxmd.com/read/28524757/wood-smoke-exposure-of-portuguese-wildland-firefighters-dna-and-oxidative-damage-evaluation
#14
Ana Abreu, Carla Costa, Susana Pinho E Silva, Simone Morais, Maria do Carmo Pereira, Adília Fernandes, Vanessa Moraes de Andrade, João Paulo Teixeira, Solange Costa
Portugal is among the European Union countries most devastated by forest fires each year. In the last three decades, more than 3.8 million hectares of forest were burned. Wildland firefighters are exposed to a variety of hazards, including many toxic combustion products that may lead to deleterious health effects. Epidemiological studies showed a positive association between firefighting and several chronic diseases, including cancer. Results from biomonitoring studies in firefighters, particularly concerning genotoxicity evaluation, constitute a valuable tool for investigating important occupational hazards...
May 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28523923/genetic-characterization-of-canine-parvovirus-from-dogs-in-pakistan
#15
M Z Shabbir, M U Sohail, U N Chaudhary, W Yaqub, I Rashid, M H Saleem, M Munir
Canine parvoviruses (CPV) exist as antigenic variants with varying frequencies and genetic variabilities across the globe. Given the endemicity and high prevalence in Pakistan, we characterized the CPVs originating from dogs-population to elucidate viral diversity and evolution. Fecal samples from clinically diseased pups (n = 17) of different breeds and age (2-6 months) were processed for hemagglutination assay (HA), and later for partial amplification of VP2 gene sequence and amino acid analysis. A total of 11 samples (64...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28523549/dna-methylation-in-schizophrenia
#16
Lotta-Katrin Pries, Sinan Gülöksüz, Gunter Kenis
Schizophrenia is a highly heritable psychiatric condition that displays a complex phenotype. A multitude of genetic susceptibility loci have now been identified, but these fail to explain the high heritability estimates of schizophrenia. In addition, epidemiologically relevant environmental risk factors for schizophrenia may lead to permanent changes in brain function. In conjunction with genetic liability, these environmental risk factors-likely through epigenetic mechanisms-may give rise to schizophrenia, a clinical syndrome characterized by florid psychotic symptoms and moderate to severe cognitive impairment...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28522688/polycystic-kidney-disease-without-an-apparent-family-history
#17
Ioan-Andrei Iliuta, Vinusha Kalatharan, Kairong Wang, Emilie Cornec-Le Gall, John Conklin, Marina Pourafkari, Ryan Ting, Chen Chen, Alessia C Borgo, Ning He, Xuewen Song, Christina M Heyer, Sarah R Senum, Young-Hwan Hwang, Andrew D Paterson, Peter C Harris, Korosh Khalili, York Pei
The absence of a positive family history (PFH) in 10%-25% of patients poses a diagnostic challenge for autosomal dominant polycystic kidney disease (ADPKD). In the Toronto Genetic Epidemiology Study of Polycystic Kidney Disease, 210 affected probands underwent renal function testing, abdominal imaging, and comprehensive PKD1 and PKD2 mutation screening. From this cohort, we reviewed all patients with and without an apparent family history, examined their parental medical records, and performed renal imaging in all available parents of unknown disease status...
May 18, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28521687/diet-and-contaminants-driving-the-rise-to-obesity-epidemics
#18
Agostino Di Ciaula, Piero Portincasa
The obesity epidemic is spreading worldwide without reversal trend and despite specific policies oriented to dietary habits and lifestyle, which seem to have modest effects. Genetic factors only partly explain the rise, whereas environmental factors seem to play a key role, mainly by gene-environment interactions through epigenetic mechanisms. A number of animal and human studies point to maternal diet, intestinal microbiota and chemicals introduced as contaminants with food, all factors able to increase the risk of obesity...
May 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28521362/association-of-common-genetic-variants-with-contralateral-breast-cancer-risk-in-the-wecare-study
#19
Mark E Robson, Anne S Reiner, Jennifer D Brooks, Patrick J Concannon, Esther M John, Lene Mellemkjaer, Leslie Bernstein, Kathleen E Malone, Julia A Knight, Charles F Lynch, Meghan Woods, Xiaolin Liang, Robert W Haile, David J Duggan, Roy E Shore, Susan A Smith, Duncan C Thomas, Daniel O Stram, Jonine L Bernstein
Background: Women with unilateral breast cancer (UBC) are at risk of developing a subsequent contralateral breast cancer (CBC). Common variants are associated with breast cancer risk. Whether these influence CBC risk is unknown. Methods: Participants were breast cancer cases from the population-based Women's Environmental Cancer and Radiation Epidemiology (WECARE) Study. Sixty-seven established breast cancer risk loci were genotyped directly or by imputation in 1459 case subjects with CBC and 2126 UBC control subjects...
October 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28515798/epigenome-wide-association-of-myocardial-infarction-with-dna-methylation-sites-at-loci-related-to-cardiovascular-disease
#20
Masahiro Nakatochi, Sahoko Ichihara, Ken Yamamoto, Keiko Naruse, Shigeki Yokota, Hiroyuki Asano, Tatsuaki Matsubara, Mitsuhiro Yokota
BACKGROUND: Development of cardiovascular disease (CVD), including coronary artery disease, arrhythmia, and ischemic stroke, depends on environmental and genetic factors. To investigate the epigenetic basis of myocardial infarction (MI), we performed an epigenome-wide association study for this condition in elderly Japanese subjects. A total of 192 case subjects with MI and 192 control subjects were recruited from hospital attendees and the general population, respectively. Genome-wide DNA methylation (DNAm) profiles for DNA isolated from whole blood were obtained by analysis with an Infinium HumanMethylation450 BeadChip...
2017: Clinical Epigenetics
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