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https://www.readbyqxmd.com/read/29053700/come-to-the-light-side-in-vivo-monitoring-of-pseudomonas-aeruginosa-biofilm-infections-in-chronic-wounds-in-a-diabetic-hairless-murine-model
#1
Alessandra M Agostinho Hunt, Jacob A Gibson, Casandra L Larrivee, Sandra O'Reilly, Svetlana Navitskaya, Julia V Busik, Christopher M Waters
The presence of bacteria as structured biofilms in chronic wounds, especially in diabetic patients, is thought to prevent wound healing and resolution. Chronic mouse wounds models have been used to understand the underlying interactions between the microorganisms and the host. The models developed to date rely on the use of haired animals and terminal collection of wound tissue for determination of viable bacteria. While significant insight has been gained with these models, this experimental procedure requires a large number of animals and sampling is time consuming...
October 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29053425/association-of-mannose-binding-lectin-rs1800450-and-tumor-necrotic-factor-%C3%AE-rs1800620-polymorphism-with-helicobacter-pylori-in-type-ii-diabetes-mellitus
#2
Elnaz Mortazavi, Behnaz Eslami, Parisa Aghahosseini, Fatemeh Ahron, Armagan Amininejad, Sepideh Mahmoodi, Hadis Satarpour, Nilofar Radmanesh, Hossein Rassi
Type II diabetes mellitus (T2DM) is the prevalent type of diabetes, including 90% of the cases world-wide. Helicobacter pylori plays a pathogenic role in the development of T2DM. The host genetic factors have a significant impact on the clinical outcome and anatomical distribution of H. pylori infection and polymorphisms in several genes such as tumor necrotic factor (TNF)-α and mannose-binding lectin (MBL) and are considered to increase the risk for the development of T2DM. In this study, we investigate the prevalence rate of H...
October 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/29052687/association-between-early-life-antibiotic-use-and-the-risk-of-islet-or-celiac-disease-autoimmunity
#3
Kaisa M Kemppainen, Kendra Vehik, Kristian F Lynch, Helena Elding Larsson, Ronald J Canepa, Ville Simell, Sibylle Koletzko, Edwin Liu, Olli G Simell, Jorma Toppari, Anette G Ziegler, Marian J Rewers, Åke Lernmark, William A Hagopian, Jin-Xiong She, Beena Akolkar, Desmond A Schatz, Mark A Atkinson, Martin J Blaser, Jeffrey P Krischer, Heikki Hyöty, Daniel Agardh, Eric W Triplett
Importance: Evidence is lacking regarding the consequences of antibiotic use in early life and the risk of certain autoimmune diseases. Objective: To test the association between early-life antibiotic use and islet or celiac disease (CD) autoimmunity in genetically at-risk children prospectively followed up for type 1 diabetes (T1D) or CD. Design, Setting, and Participants: HLA-genotyped newborns from Finland, Germany, Sweden, and the United States were enrolled in the prospective birth cohort of The Environmental Determinants of Diabetes in the Young (TEDDY) study between November 20, 2004, and July 8, 2010...
October 9, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/29050400/metformin-reverses-trap1-mutation-associated-alterations-in-mitochondrial-function-in-parkinson-s-disease
#4
Julia C Fitzgerald, Alexander Zimprich, Daniel A Carvajal Berrio, Kevin M Schindler, Brigitte Maurer, Claudia Schulte, Christine Bus, Anne-Kathrin Hauser, Manuela Kübler, Rahel Lewin, Dheeraj Reddy Bobbili, Lisa M Schwarz, Evangelia Vartholomaiou, Kathrin Brockmann, Richard Wüst, Johannes Madlung, Alfred Nordheim, Olaf Riess, L Miguel Martins, Enrico Glaab, Patrick May, Katja Schenke-Layland, Didier Picard, Manu Sharma, Thomas Gasser, Rejko Krüger
The mitochondrial proteins TRAP1 and HTRA2 have previously been shown to be phosphorylated in the presence of the Parkinson's disease kinase PINK1 but the downstream signalling is unknown. HTRA2 and PINK1 loss of function causes parkinsonism in humans and animals. Here, we identified TRAP1 as an interactor of HTRA2 using an unbiased mass spectrometry approach. In our human cell models, TRAP1 overexpression is protective, rescuing HTRA2 and PINK1-associated mitochondrial dysfunction and suggesting that TRAP1 acts downstream of HTRA2 and PINK1...
September 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29050321/interaction-among-cyp2c8-gpiiia-and-p2y12-variants-increase-susceptibility-to-ischemic-stroke-in-chinese-population
#5
Xingyang Yi, Jing Lin, Yanfen Wang, Ju Zhou, Qiang Zhou
PURPOSE: Genetic variants in cytochrome P450 (CYP), platelet membrane receptor (P2Y12, P2Y1), and glycoprotein IIIa (GPIIIa) genes are associated with the efficacy of clopidogrel and adverse clinical events on ischemic stroke (IS) patients. However, few studies have assessed whether gene-gene interactions among these genes influence the risk of IS. The aim of the present study was to investigate the association of fifteen variants with IS and to determine whether these gene-gene interactions increase the risk of IS...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050004/study-on-clinical-factors-involved-in-helicobacter-pylori-uninfected-undifferentiated-type-early-gastric-cancer
#6
Yusuke Horiuchi, Junko Fujisaki, Naoki Ishizuka, Masami Omae, Akiyoshi Ishiyama, Toshiyuki Yoshio, Toshiaki Hirasawa, Yorimasa Yamamoto, Masatsugu Nagahama, Hiroshi Takahashi, Tomohiro Tsuchida
BACKGROUND: The factors associated with the pathogenesis of Helicobacter pylori-uninfected undifferentiated-type early gastric cancer (HPUGC) remain unclear. This study compared patient characteristics, including medical history and alcohol/tobacco use, of HPUGC patients with characteristics of patients with H. pylori-positive undifferentiated-type early gastric cancer (HPPGC) to clarify and gain understanding on those differences that could play a role in the pathogenesis. METHODS: This retrospective study included 282 patients who were treated endoscopically from March 2005 to March 2014...
October 19, 2017: Digestion
https://www.readbyqxmd.com/read/29048747/association-between-gestational-diabetes-mellitus-exposure-and-childhood-adiposity-is-not-substantially-explained-by-offspring-genetic-risk-of-obesity
#7
S Raghavan, W Zhang, I V Yang, L A Lange, E M Lange, T E Fingerlin, D Dabelea
AIM: To examine the extent to which offspring obesity-associated genetic risk explains the association between gestational diabetes mellitus and childhood adiposity. METHODS: We studied 282 children aged 7-12 years who were enrolled in the Exploring Perinatal Outcomes in Children Study. A genetic risk score for BMI was calculated as the count of 91 established BMI-raising risk alleles. Multivariable linear and logistic regression models were used to estimate associations between the offspring genetic risk score and exposure to gestational diabetes and childhood adiposity (BMI and waist circumference), adjusting for clinical and demographic covariates...
October 19, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/29048714/high-genetic-risk-scores-for-impaired-insulin-secretory-capacity-doubles-the-risk-for-type-2-diabetes-in-asians-and-is-exacerbated-by-western-type-diets
#8
Da Sol Kim, Byoung Chul Kim, James W Daily, Sunmin Park
BACKGROUND: Asians have among the highest incidence of type 2 diabetes (T2DM) in the world, partly due to low β-cell function, causing them to rapidly develop T2DM when insulin resistant. This study tested the hypothesis that genetic polymorphisms are responsible for the low β-cell function and that dietary factors interact with the genes to exacerbate their risk of T2DM. METHODS: We selected 10 genetic variants of 5 genes involved in insulin secretion (CDKAL1, KCNQ1, IDE, HHEX, and ABCA1) from the genome-wide association studies to calculate the genetic risk scores (GRSs) in 8842 Korean adults in the Ansan/Ansung cohort in the Korean Genome Epidemiology Study...
September 5, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/29046975/the-genetics-of-physical-activity
#9
REVIEW
Xiaochen Lin, Charles B Eaton, JoAnn E Manson, Simin Liu
PURPOSE OF REVIEW: Physical activity (PA) is a well-established modifiable lifestyle determinant for multiple cardio-metabolic outcomes. While many psychosocial and environmental correlates of PA have been identified, current understanding of the genetic architecture that contributes to PA is still very limited, especially when compared to other phenotypes such as obesity and diabetes. RECENT FINDINGS: This review systematically and comprehensively assesses available evidence from animal experiments, family studies, population-based candidate gene analyses, and genome-wide association studies (GWAS) studying the genetics of physical activity patterns...
October 18, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/29046480/epigenetic-mechanisms-underlying-maternal-diabetes-associated-risk-of-congenital-heart-disease
#10
Madhumita Basu, Jun-Yi Zhu, Stephanie LaHaye, Uddalak Majumdar, Kai Jiao, Zhe Han, Vidu Garg
Birth defects are the leading cause of infant mortality, and they are caused by a combination of genetic and environmental factors. Environmental risk factors may contribute to birth defects in genetically susceptible infants by altering critical molecular pathways during embryogenesis, but experimental evidence for gene-environment interactions is limited. Fetal hyperglycemia associated with maternal diabetes results in a 5-fold increased risk of congenital heart disease (CHD), but the molecular basis for this correlation is unknown...
October 19, 2017: JCI Insight
https://www.readbyqxmd.com/read/29046328/genetic-support-for-a-causal-role-of-insulin-resistance-on-circulating-branched-chain-amino-acids-and-inflammation
#11
Qin Wang, Michael V Holmes, George Davey Smith, Mika Ala-Korpela
OBJECTIVE: Insulin resistance has deleterious effects on cardiometabolic disease. We used Mendelian randomization analyses to clarify the causal relationships of insulin resistance (IR) on circulating blood-based metabolites to shed light on potential mediators of the IR to cardiometabolic disease relationship. RESEARCH DESIGN AND METHODS: We used 53 single nucleotide polymorphisms associated with IR from a recent genome-wide association study (GWAS) to explore their effects on circulating lipids and metabolites...
October 18, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29045001/anti-inflammaging-effects-of-human-alpha-1-antitrypsin
#12
Ye Yuan, Benedetto DiCiaccio, Ying Li, Ahmed S Elshikha, Denis Titov, Brian Brenner, Lee Seifer, Hope Pan, Nurdina Karic, Mohammad A Akbar, Yuanqing Lu, Sihong Song, Lei Zhou
Inflammaging plays an important role in most age-related diseases. However, the mechanism of inflammaging is largely unknown, and therapeutic control of inflammaging is challenging. Human alpha-1 antitrypsin (hAAT) has immune-regulatory, anti-inflammatory, and cytoprotective properties as demonstrated in several disease models including type 1 diabetes, arthritis, lupus, osteoporosis, and stroke. To test the potential anti-inflammaging effect of hAAT, we generated transgenic Drosophila lines expressing hAAT...
October 17, 2017: Aging Cell
https://www.readbyqxmd.com/read/29044608/nutrient-sensing-in-pancreatic-islets-lessons-from-congenital-hyperinsulinism-and-monogenic-diabetes
#13
REVIEW
Ming Lu, Changhong Li
Pancreatic beta cells sense changes in nutrients during the cycles of fasting and feeding and release insulin accordingly to maintain glucose homeostasis. Abnormal beta cell nutrient sensing resulting from gene mutations leads to hypoglycemia or diabetes. Glucokinase (GCK) plays a key role in beta cell glucose sensing. As one form of congenital hyperinsulinism (CHI), activating mutations of GCK result in a decreased threshold for glucose-stimulated insulin secretion and hypoglycemia. In contrast, inactivating mutations of GCK result in diabetes, including a mild form (MODY2) and a severe form (permanent neonatal diabetes mellitus (PNDM))...
October 16, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29044066/color-vision-abnormalities-in-type-ii-diabetes-sankara-nethralaya-diabetic-retinopathy-epidemiology-and-molecular-genetics-study-ii-report-no-2
#14
Laxmi Gella, Rajiv Raman, Vaitheeswaran Kulothungan, Swakshyar Saumya Pal, Suganeswari Ganesan, Sangeetha Srinivasan, Tarun Sharma
PURPOSE: The purpose of this study is to assess color vision abnormalities in a cohort of subjects with type II diabetes and elucidate associated risk factors. METHODS: Subjects were recruited from follow-up cohort of Sankara Nethralaya Diabetic Retinopathy Epidemiology and Molecular Genetics Study I. Six hundred and seventy-three eyes of 343 subjects were included from this population-based study. All subjects underwent detailed ophthalmic evaluation, including the Farnsworth-Munsell 100 hue test...
October 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29043143/focal-segmental-glomerulosclerosis-associated-with-mitochondrial-disease
#15
Kenneth Lim, David Steele, Andrew Fenves, Ravi Thadhani, Eliot Heher, Amel Karaa
Primary mitochondrial diseases (MD) are complex, heterogeneous inherited diseases caused by mutations in either the mitochondrial or nuclear DNA. Glomerular diseases in MD have been reported with tRNA mutation m.3243A>G causing a syndrome of mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS). We describe here a case of focal segmental glomerulosclerosis (FSGS) associated with a new tRNA mutation site. A 34-year-old man with a history of living related kidney transplantation, diabetes, hearing loss, and developmental delay presented to the outpatient clinic with complaints of new behavioral difficulties, worsening symptoms, and brain involvement on imaging...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29041934/h-syndrome-5-new-cases-from-the-united-states-with-novel-features-and-responses-to-therapy
#16
Jessica L Bloom, Clara Lin, Lisa Imundo, Stephen Guthery, Shelly Stepenaskie, Csaba Galambos, Amy Lowichik, John F Bohnsack
BACKGROUND: H Syndrome is an autosomal recessive disorder characterized by cutaneous hyperpigmentation, hypertrichosis, and induration with numerous systemic manifestations. The syndrome is caused by mutations in SLC29A3, a gene located on chromosome 10q23, which encodes the human equilibrative transporter 3 (hENT3). Less than 100 patients with H syndrome have been described in the literature, with the majority being of Arab descent, and only a few from North America. CASE PRESENTATION: Here we report five pediatric patients from three medical centers in the United States who were identified to have H syndrome by whole exome sequencing...
October 17, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/29040868/identification-of-a-novel-proinsulin-associated-snp-and-demonstration-that-proinsulin-is-unlikely-to-be-a-causal-factor-in-subclinical-vascular-remodelling-using-mendelian-randomisation
#17
Rona J Strawbridge, Angela Silveira, Marcel den Hoed, Stefan Gustafsson, Jian'an Luan, Denis Rybin, Josée Dupuis, Ruifang Li-Gao, Maryam Kavousi, Abbas Dehghan, Kadri Haljas, Jari Lahti, Jesper R Gådin, Alexandra Bäcklund, Ulf de Faire, Karl Gertow, Phillipe Giral, Anuj Goel, Steve E Humphries, Sudhir Kurl, Claudia Langenberg, Lars L Lannfelt, Lars Lind, Cecilia C M Lindgren, Elmo Mannarino, Dennis O Mook-Kanamori, Andrew P Morris, Renée de Mutsert, Rainer Rauramaa, Peter Saliba-Gustafsson, Bengt Sennblad, Andries J Smit, Ann-Christine Syvänen, Elena Tremoli, Fabrizio Veglia, Björn Zethelius, Hanna M Björck, Johan G Eriksson, Albert Hofman, Oscar H Franco, Hugh Watkins, J Wouter Jukema, Jose C Florez, Nicholas J Wareham, James B Meigs, Erik Ingelsson, Damiano Baldassarre, Anders Hamsten
BACKGROUND AND AIMS: Increased proinsulin relative to insulin levels have been associated with subclinical atherosclerosis (measured by carotid intima-media thickness (cIMT)) and are predictive of future cardiovascular disease (CVD), independently of established risk factors. The mechanisms linking proinsulin to atherosclerosis and CVD are unclear. A genome-wide meta-analysis has identified nine loci associated with circulating proinsulin levels. Using proinsulin-associated SNPs, we set out to use a Mendelian randomisation approach to test the hypothesis that proinsulin plays a causal role in subclinical vascular remodelling...
September 28, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29040557/divergence-and-convergence-in-cause-specific-premature-adult-mortality-in-mexico-and-us-mexican-hispanics-from-1995-to-2015-analyses-of-4-9-million-individual-deaths
#18
Luz Myriam Reynales-Shigematsu, Carlos Manuel Guerrero-López, Mauricio Hernández Ávila, Hyacinth Irving, Prabhat Jha
Background: Mexicans and US Mexican Hispanics share modifiable determinants of premature mortality. We compared trends in mortality at ages 30-69 in Mexico and among US Mexican Hispanics from 1995 to 2015. Methods: We examined nationally representative statistics on 4.2 million Mexican and 0.7 million US deaths to examine cause-specific mortality. We used lung cancer indexed methods to estimate smoking-attributable deaths stratified by high and lower burden Mexican states...
September 23, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29040545/ethnicity-and-place-the-geography-of-diabetes-inequalities-under-a-strong-welfare-state
#19
Elias Nosrati, Anne Karen Jenum, Anh Thi Tran, Sir Michael Marmot, Lawrence Peter King
Background: The Nordic 'health paradox' designates the seemingly puzzling empirical reality in which, despite the presence of strong welfare policies targeting structural inequalities, distinct health disparities persist in Scandinavian societies. In Norway, previous research has shown that inequalities in diabetes prevalence are particularly salient, notably between ethnic groups. These have often been attributed to lifestyle, socioeconomic factors, or genetics. No previous research has sought to investigate the sociospatial mediation of diabetes inequities...
October 10, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/29039222/association-between-haptoglobin-gene-and-insulin-resistance-in-arab-americans
#20
Kyle J Burghardt, Dana El Masri, Sabrina E Dass, Sara S Shikwana, Linda A Jaber
AIM: To analyze associations between variation in the HP gene and lipid and glucose-related measures in Arab-Americans. Secondary analyses were performed based on sex. PATIENTS & METHODS: Genomic DNA was extracted from samples obtained from a previous epidemiological study of diabetes in Arab-Americans. The HP 1 and 2 alleles were analyzed by polymerase chain reaction and gel electrophoresis. Associations were analyzed by linear regression. RESULTS & CONCLUSION: Associations were identified between the heterozygous haptoglobin 2-1 genotype and insulin resistance, fasting insulin and fasting c-peptide...
October 17, 2017: Biomarkers in Medicine
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