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Pima indian diabetes

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https://www.readbyqxmd.com/read/28166298/estimation-of-chronic-kidney-disease-incidence-from-prevalence-and-mortality-data-in-american-indians-with-type-2-diabetes
#1
Pavithra Vijayakumar, Annika Hoyer, Robert G Nelson, Ralph Brinks, Meda E Pavkov
The objective was to estimate chronic kidney disease (CKD) incidence rates from prevalence and mortality data, and compare the estimates with observed (true) incidence rates in a well-characterized population with diabetes. Pima Indians aged 20 years and older with type 2 diabetes were followed from 1982 through 2007. CKD was defined by estimated GFR (eGFR) <60 ml/min/1.72 m2 or albumin-to-creatinine ratio (ACR) ≥30 mg/g. True CKD incidence and mortality rates were computed for the whole study period, and prevalence for the intervals 1982-1994 and 1995-2007...
2017: PloS One
https://www.readbyqxmd.com/read/28127622/differential-methylation-of-genes-in-individuals-exposed-to-maternal-diabetes-in-utero
#2
Peng Chen, Paolo Piaggi, Michael Traurig, Clifton Bogardus, William C Knowler, Leslie J Baier, Robert L Hanson
AIMS/HYPOTHESIS: Individuals exposed to maternal diabetes in utero are more likely to develop metabolic and cardiovascular diseases later in life. This may be partially attributable to epigenetic regulation of gene expression. We performed an epigenome-wide association study to examine whether differential DNA methylation, a major source of epigenetic regulation, can be observed in offspring of mothers with type 2 diabetes during the pregnancy (OMD) compared with offspring of mothers with no diabetes during the pregnancy (OMND)...
January 26, 2017: Diabetologia
https://www.readbyqxmd.com/read/28120165/investigating-the-link-of-acad10-deficiency-to-type-2-diabetes-mellitus
#3
Kaitlyn Bloom, Al-Walid Mohsen, Anuradha Karunanidhi, Dina El Demellawy, Miguel Reyes-Múgica, Yudong Wang, Lina Ghaloul-Gonzalez, Chikara Otsubo, Kimi Tobita, Radhika Muzumdar, Zhenwei Gong, Emir Tas, Shrabani Basu, Jie Chen, Michael Bennett, Charles Hoppel, Jerry Vockley
The Native American Pima population has the highest incidence of insulin resistance (IR) and type 2 diabetes mellitus (T2DM) of any reported population, but the pathophysiologic mechanism is unknown. Genetic studies in Pima Indians have linked acyl-CoA dehydrogenase 10 (ACAD10) gene polymorphisms, among others, to this predisposition. The gene codes for a protein with a C-terminus region that is structurally similar to members of a family of flavoenzymes-the acyl-CoA dehydrogenases (ACADs)-that catalyze α,β-dehydrogenation reactions, including the first step in mitochondrial FAO (FAO), and intermediary reactions in amino acids catabolism...
January 24, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28027460/sm-ruleminer-spider-monkey-based-rule-miner-using-novel-fitness-function-for-diabetes-classification
#4
Ramalingaswamy Cheruku, Damodar Reddy Edla, Venkatanareshbabu Kuppili
Diabetes is a major health challenge around the world. Existing rule-based classification systems have been widely used for diabetes diagnosis, even though they must overcome the challenge of producing a comprehensive optimal ruleset while balancing accuracy, sensitivity and specificity values. To resolve this drawback, in this paper, a Spider Monkey Optimization-based rule miner (SM-RuleMiner) has been proposed for diabetes classification. A novel fitness function has also been incorporated into SM-RuleMiner to generate a comprehensive optimal ruleset while balancing accuracy, sensitivity and specificity...
February 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/27208372/type-2-diabetes-why-we-are-winning-the-battle-but-losing-the-war-2015-kelly-west-award-lecture
#5
K M Venkat Narayan
Diabetes is among the biggest of the 21st-century global health challenges. In the U.S. and other high-income countries, thanks to investments in science, dedication to implementing these findings, and measurement of quality of care, there have been improvements in diabetes management and declines in rate of diabetes complications and mortality. This good news, however, is overshadowed by the ever-increasing absolute numbers of people with diabetes and its complications and the unprecedented growth of diabetes in low- and middle-income countries of the world...
May 2016: Diabetes Care
https://www.readbyqxmd.com/read/27142425/selecting-snps-informative-for-african-american-indian-and-european-ancestry-application-to-the-family-investigation-of-nephropathy-and-diabetes-find
#6
Robert C Williams, Robert C Elston, Pankaj Kumar, William C Knowler, Hanna E Abboud, Sharon Adler, Donald W Bowden, Jasmin Divers, Barry I Freedman, Robert P Igo, Eli Ipp, Sudha K Iyengar, Paul L Kimmel, Michael J Klag, Orly Kohn, Carl D Langefeld, David J Leehey, Robert G Nelson, Susanne B Nicholas, Madeleine V Pahl, Rulan S Parekh, Jerome I Rotter, Jeffrey R Schelling, John R Sedor, Vallabh O Shah, Michael W Smith, Kent D Taylor, Farook Thameem, Denyse Thornley-Brown, Cheryl A Winkler, Xiuqing Guo, Phillip Zager, Robert L Hanson
BACKGROUND: The presence of population structure in a sample may confound the search for important genetic loci associated with disease. Our four samples in the Family Investigation of Nephropathy and Diabetes (FIND), European Americans, Mexican Americans, African Americans, and American Indians are part of a genome- wide association study in which population structure might be particularly important. We therefore decided to study in detail one component of this, individual genetic ancestry (IGA)...
May 4, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27111117/complex-genetics-of-type-2-diabetes-and-effect-size-what-have-we-learned-from-isolated-populations
#7
Anup K Nair, Leslie J Baier
Genetic studies in large outbred populations have documented a complex, highly polygenic basis for type 2 diabetes (T2D). Most of the variants currently known to be associated with T2D risk have been identified in large studies that included tens of thousands of individuals who are representative of a single major ethnic group such as European, Asian, or African. However, most of these variants have only modest effects on the risk for T2D; identification of definitive 'causal variant' or 'causative loci' is typically lacking...
October 2015: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/27076275/the-impact-of-genetic-variants-on-bmi-increase-during-childhood-versus-adulthood
#8
M G Hohenadel, L J Baier, P Piaggi, Y L Muller, R L Hanson, J Krakoff, M S Thearle
BACKGROUND: Genetic variants that predispose individuals to obesity may have differing influences during childhood versus adulthood, and additive effects of such variants are likely to occur. Our ongoing studies to identify genetic determinants of obesity in American Indians have identified 67 single-nucleotide polymorphisms (SNPs) that reproducibly associate with maximum lifetime non-diabetic body mass index (BMI). This study aimed to identify when, during the lifetime, these variants have their greatest impact on BMI increase...
August 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27041674/cardiovascular-autonomic-neuropathy-associates-with-nephropathy-lesions-in-american-indians-with-type-2-diabetes
#9
Kevin M Wheelock, Mamta Jaiswal, Catherine L Martin, Gudeta D Fufaa, E Jennifer Weil, Kevin V Lemley, Berne Yee, Eva Feldman, Frank C Brosius, William C Knowler, Robert G Nelson, Rodica Pop-Busui
AIMS: Cardiovascular autonomic neuropathy (CAN) predicts clinical diabetic nephropathy (DN). We investigated the relationship between DN structural lesions and CAN. METHODS: Sixty three Pima Indians with type 2 diabetes underwent kidney biopsies following a 6-year clinical trial testing the renoprotective efficacy of losartan vs. placebo. CAN was assessed a median 9.2years later. CAN variables included expiration/inspiration ratio (E/I), standard deviation of the normal R-R interval (sdNN), and low and high frequency signal power and their ratio (LF, HF, LF/HF); lower values reflect more severe neuropathy...
July 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/26913636/metabolic-risk-factors-and-type-2-diabetes-incidence-in-american-indian-children
#10
Kevin M Wheelock, Madhumita Sinha, William C Knowler, Robert G Nelson, Gudeta D Fufaa, Robert L Hanson
Four childhood metabolic risk factors were assessed as predictors of future type 2 diabetes; obesity and impaired glucose tolerance were strong predictors, hypertension and dyslipidemia were not.
April 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/26606528/use-of-a-high-density-protein-microarray-to-identify-autoantibodies-in-subjects-with-type-2-diabetes-mellitus-and-an-hla-background-associated-with-reduced-insulin-secretion
#11
Douglas C Chang, Paolo Piaggi, Robert L Hanson, William C Knowler, John Bucci, Guene Thio, Maximilian G Hohenadel, Clifton Bogardus, Jonathan Krakoff
New biomarkers for type 2 diabetes mellitus (T2DM) may aid diagnosis, drug development or clinical treatment. Evidence is increasing for the adaptive immune system's role in T2DM and suggests the presence of unidentified autoantibodies. While high-density protein microarrays have emerged as a useful technology to identify possible novel autoantigens in autoimmune diseases, its application in T2DM has lagged. In Pima Indians, the HLA haplotype (HLA-DRB1*02) is protective against T2DM and, when studied when they have normal glucose tolerance, subjects with this HLA haplotype have higher insulin secretion compared to those without the protective haplotype...
2015: PloS One
https://www.readbyqxmd.com/read/26604175/dissecting-the-etiology-of-type-2-diabetes-in-the-pima-indian-population
#12
COMMENT
Ewan R Pearson
No abstract text is available yet for this article.
December 2015: Diabetes
https://www.readbyqxmd.com/read/26408818/t-cell-receptor-repertoire-variation-may-be-associated-with-type-2-diabetes-mellitus-in-humans
#13
Joseph A Frankl, Marie S Thearle, Cindy Desmarais, Clifton Bogardus, Jonathan Krakoff
BACKGROUND: Recent work in Pima Indians, a population with high rates of obesity and type 2 diabetes mellitus (T2DM), demonstrated that human leukocyte antigen haplotype DRB1*02 carriers have an increased acute insulin response and decreased risk for the development of T2DM, implicating loss of self-tolerance in the pathogenesis of T2DM. Advances in genomic sequencing have made T-cell receptor repertoire analysis a practical mode of investigation. METHODS: High-throughput sequencing of T-cell receptor complementarity-determining region 3 was carried out in male Pima Indians with normal glucose regulation (n = 11; age = 31 ± 8 years; %fat = 30...
March 2016: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/26337673/assessing-foxo1a-as-a-potential-susceptibility-locus-for-type-2-diabetes-and-obesity-in-american-indians
#14
Yunhua L Muller, Robert L Hanson, Gregory Wiessner, Lori Nieboer, Sayuko Kobes, Paolo Piaggi, Mahdi Abdussamad, Chidinma Okani, William C Knowler, Clifton Bogardus, Leslie J Baier
OBJECTIVE: A prior genome-wide association study (GWAS) in Pima Indians identified variation within FOXO1A that modestly associated with early-onset (onset age < 25 years) type 2 diabetes (T2D). FOXO1A encodes the forkhead transcription factor involved in pancreatic β-cell growth and hypothalamic energy balance; therefore, FOXO1A was analyzed as a candidate gene for T2D and obesity in a population-based sample of 7,710 American Indians. METHODS: Tag SNPs in/near FOXO1A (minor allele frequency ≥ 0...
October 2015: Obesity
https://www.readbyqxmd.com/read/26246457/environmentally-driven-increases-in-type-2-diabetes-and-obesity-in-pima-indians-and-non-pimas-in-mexico-over-a-15-year-period-the-maycoba-project
#15
COMPARATIVE STUDY
Julian Esparza-Romero, Mauro E Valencia, Rene Urquidez-Romero, Lisa S Chaudhari, Robert L Hanson, William C Knowler, Eric Ravussin, Peter H Bennett, Leslie O Schulz
OBJECTIVE: The global epidemics of type 2 diabetes and obesity have been attributed to the interaction between lifestyle changes and genetic predisposition to these diseases. We compared the prevalences of type 2 diabetes and obesity in Mexican Pima Indians, presumed to have a high genetic predisposition to these diseases, to those in their non-Pima neighbors, both of whom over a 15-year period experienced a transition from a traditional to a more modern lifestyle. RESEARCH DESIGN AND METHODS: Prevalence of diabetes, impaired fasting glucose, impaired glucose tolerance, and obesity in Mexican Pimas (n = 359) and non-Pima Mexicans (n = 251) were determined in 2010 using methods identical to those used in 1995...
November 2015: Diabetes Care
https://www.readbyqxmd.com/read/26246406/abcc8-r1420h-loss-of-function-variant-in-a-southwest-american-indian-community-association-with-increased-birth-weight-and-doubled-risk-of-type-2-diabetes
#16
Leslie J Baier, Yunhua Li Muller, Maria Sara Remedi, Michael Traurig, Paolo Piaggi, Gregory Wiessner, Ke Huang, Alyssa Stacy, Sayuko Kobes, Jonathan Krakoff, Peter H Bennett, Robert G Nelson, William C Knowler, Robert L Hanson, Colin G Nichols, Clifton Bogardus
Missense variants in KCNJ11 and ABCC8, which encode the KIR6.2 and SUR1 subunits of the β-cell KATP channel, have previously been implicated in type 2 diabetes, neonatal diabetes, and hyperinsulinemic hypoglycemia of infancy (HHI). To determine whether variation in these genes affects risk for type 2 diabetes or increased birth weight as a consequence of fetal hyperinsulinemia in Pima Indians, missense and common noncoding variants were analyzed in individuals living in the Gila River Indian Community. A R1420H variant in SUR1 (ABCC8) was identified in 3...
December 2015: Diabetes
https://www.readbyqxmd.com/read/26056536/association-of-hsd11b1-polymorphic-variants-and-adipose-tissue-gene-expression-with-metabolic-syndrome-obesity-and-type-2-diabetes-mellitus-a-systematic-review
#17
Filipe Valvassori do Nascimento, Vanessa Piccoli, Mayara Abichequer Beer, Anize Delfino von Frankenberg, Daisy Crispim, Fernando Gerchman
The HSD11B1 gene is highly expressed in abdominal adipose tissue, and the enzyme it encodes catalyzes the interconversion of inactive cortisone to hormonally active cortisol. Genetic abnormalities of HSD11B1 have been associated with the development of abnormal glucose metabolism and body fat distribution. To systematically review studies evaluating the association of HSD11B1 gene expression in abdominal adipose tissue and HSD11B1 polymorphisms with obesity, the metabolic syndrome (MetS), and type 2 diabetes (T2DM), we conducted a search in MEDLINE, SCOPUS, and Cochrane Library databases in April 2015...
2015: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/26046414/diabetes-and-kidney-disease-in-american-indians-potential-role-of-sugar-sweetened-beverages
#18
REVIEW
Joseph M Yracheta, Miguel A Lanaspa, MyPhuong T Le, Manal F Abdelmalak, Javier Alfonso, Laura G Sánchez-Lozada, Richard J Johnson
Since the early 20th century, a marked increase in obesity, diabetes, and chronic kidney disease has occurred in the American Indian population, especially the Pima Indians of the Southwest. Here, we review the current epidemic and attempt to identify remediable causes. A search was performed using PubMed and the search terms American Indian and obesity, American Indian and diabetes, American Indian and chronic kidney disease, and American Indian and sugar or fructose, Native American, Alaska Native, First Nations, Aboriginal, Amerind, and Amerindian for American Indian for articles linking American Indians with diabetes, obesity, chronic kidney disease, and sugar; additional references were identified in these publications traced to 1900 and articles were reviewed if they were directly discussing these topics...
June 2015: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/25954599/high-risk-populations-the-pimas-of-arizona-and-mexico
#19
REVIEW
Leslie O Schulz, Lisa S Chaudhari
The purpose of this review is first, to broadly summarize the long-term commitment that began in 1965 to studying type 2 diabetes and obesity through the cooperation of the Pima Indians of Arizona, and second, to discuss the investigations with the Pima Indians of Mexico that started in 1991. The later studies emphasize gene-environment interactions in the pathogenesis of these metabolic disorders. Through the participation of both groups of Pimas, the researchers made key findings with regard to the epidemiology, physiology, clinical assessment and genetics of type 2 diabetes and obesity...
March 2015: Current Obesity Reports
https://www.readbyqxmd.com/read/25854666/feature-selection-using-binary-particle-swarm-optimization-and-support-vector-machines-for-medical-diagnosis
#20
Mohammad Reza Daliri
In this article, we propose a feature selection strategy using a binary particle swarm optimization algorithm for the diagnosis of different medical diseases. The support vector machines were used for the fitness function of the binary particle swarm optimization. We evaluated our proposed method on four databases from the machine learning repository, including the single proton emission computed tomography heart database, the Wisconsin breast cancer data set, the Pima Indians diabetes database, and the Dermatology data set...
October 2012: Biomedizinische Technik. Biomedical Engineering
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