Dataset Information

The presence of GAD and IA-2 antibodies in youth with a type 2 diabetes phenotype: results from the TODAY study.

ABSTRACT: To determine the frequency of islet cell autoimmunity in youth clinically diagnosed with type 2 diabetes and describe associated clinical and laboratory findings.Children (10-17 years) diagnosed with type 2 diabetes were screened for participation in the Treatment Options for Type 2 Diabetes in Adolescents and Youth (TODAY) study. Measurements included GAD-65 and insulinoma-associated protein 2 autoantibodies using the new National Institute of Diabetes and Digestive and Kidney Diseases/National Institutes of Health (NIDDK/NIH) standardized assays, a physical examination, and fasting lipid, C-peptide, and A1C determinations.Of the 1,206 subjects screened and considered clinically to have type 2 diabetes, 118 (9.8%) were antibody positive; of these, 71 (5.9%) were positive for a single antibody, and 47 were positive (3.9%) for both antibodies. Diabetes autoantibody (DAA) positivity was significantly associated with race (P < 0.0001), with positive subjects more likely to be white (40.7 vs. 19%) (P < 0.0001) and male (51.7 vs. 35.7%) (P = 0.0007). BMI, BMI z score, C-peptide, A1C, triglycerides, HDL cholesterol, and blood pressure were significantly different by antibody status. The antibody-positive subjects were less likely to display characteristics clinically associated with type 2 diabetes and a metabolic syndrome phenotype, although the range for BMI z score, blood pressure, fasting C-peptide, and serum lipids overlapped between antibody-positive and antibody-negative subjects.Obese youth with a clinical diagnosis of type 2 diabetes may have evidence of islet autoimmunity contributing to insulin deficiency. As a group, patients with DAA have clinical characteristics significantly different from those without DAA. However, without islet autoantibody analysis, these characteristics cannot reliably distinguish between obese young individuals with type 2 diabetes and those with autoimmune diabetes.

SUBMITTER: Klingensmith GJ

PROVIDER: S-EPMC2928346 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

The presence of GAD and IA-2 antibodies in youth with a type 2 diabetes phenotype: results from the TODAY study.

Klingensmith Georgeanna J GJ Pyle Laura L Arslanian Silva S Copeland Kenneth C KC Cuttler Leona L Kaufman Francine F Laffel Lori L Marcovina Santica S Tollefsen Sherida E SE Weinstock Ruth S RS Linder Barbara B

Diabetes care 20100602 9

<h4>Objective</h4>To determine the frequency of islet cell autoimmunity in youth clinically diagnosed with type 2 diabetes and describe associated clinical and laboratory findings.<h4>Research design and methods</h4>Children (10-17 years) diagnosed with type 2 diabetes were screened for participation in the Treatment Options for Type 2 Diabetes in Adolescents and Youth (TODAY) study. Measurements included GAD-65 and insulinoma-associated protein 2 autoantibodies using the new National Institute ...[more]

PMID: 20519658

Similar Datasets

Project description:Conducting longitudinal research related to chronic illness in adolescents is inherently challenging due to developmental changes and psychosocial stressors. Participants in the Treatment Options for type 2 Diabetes in Adolescents and Youth clinical trial were socioeconomically disadvantaged as well. This study assessed attitudes and beliefs about retention in Treatment Options for type 2 Diabetes in Adolescents and Youth to shed light on the factors that potentially promote and detract from the likelihood of sustained participation.After an average 7.3?years of follow-up (range 4.9-9.5), Treatment Options for type 2 Diabetes in Adolescents and Youth participants completed a survey examining their perceptions of the benefits and barriers to sustained involvement in the protocol.The most common reasons for staying in Treatment Options for type 2 Diabetes in Adolescents and Youth included having a strong relationship with the medical team, getting study-provided diabetes care, access to free diabetes medicine and supplies, and being part of a large study to learn more about how to care for youth-onset type 2 diabetes. The most commonly endorsed challenges included scheduling conflicts, possibly disappointing others, difficulties getting to study visits, and the occurrence of other medical issues.Similar to other published reports, a supportive relationship with study staff was commonly endorsed as a benefit of engagement in the longitudinal study, suggesting that rapport, staff consistency, and relationship quality are important components of optimal retention. Moreover, our findings suggest the value of trying to remove logistical barriers, such as transportation and scheduling challenges, in order to promote long-term participation in research. Further research is recommended to evaluate factors that contribute to attrition versus retention in an a priori manner within longitudinal studies, especially protocols involving cohorts that are more vulnerable to attrition due to developmental transitions and/or socioeconomic challenges. Additional efforts to optimize quantitative and qualitative measurement of barriers would also help to expand our understanding of how to optimally retain participants in longitudinal protocols.

Dataset Information

The presence of GAD and IA-2 antibodies in youth with a type 2 diabetes phenotype: results from the TODAY study.

Publications

The presence of GAD and IA-2 antibodies in youth with a type 2 diabetes phenotype: results from the TODAY study.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets