The Environmental Determinants of Diabetes in the Young (TEDDY) study was initiated in 2003 by six clinical centers in the United States and Europe, including ours, to identify infectious agents, dietary factors, or other environmental exposures that may trigger or protect against the development of islet autoimmunity and type 1 diabetes (T1D). Additional long-term scientific goals include assessment of potential gene-environment interactions affecting development of islet autoimmunity or T1D, gaining insight on mechanisms, and sharing collected specimens with broader scientific community for studies of T1D pathogenesis and prevention. A total of 424,788 newborns have been screened by HLA-DR, DQ genotyping to identify children at increased risk for T1D and 8677 are followed four times a year until 4 years of age and twice a year thereafter until age 15. Our Clinical Center has enrolled 1,379 TEDDY participants;of those 41 have developed persistent confirmed islet autoantibodies and 9 have been diagnosed with T1D, as of 6/30/2012.
The specific aims of this renewal application for our multi-center, prospective cohort study are to: 1) Follow the TEDDY cohort of 8,677 high-risk children for development of islet autoimmunity and diabetes and celiac disease for 5 more years;2) Collect all planned biological specimens and epidemiological data according to the standard TEDDY protocol including close monitoring of performance and of the quality of samples and data;3) Perform planned laboratory tests at appropriate times using a nested case-control study design to answer specific scientific questions and hypotheses pertinent to the TEDDY study goals;4) Analyze and publish laboratory and epidemiological data in collaboration with the TEDDY Data Coordinating Center (funded separately), and 5) Guide the ongoing TEDDY project by participation of the Clinical Center investigators and staff in work of the study Steering Committee and sub-committees. A successful study outcome should allow better understanding of the etiology and pathogenesis of islet autoimmunity and T1D and the development of new strategies to prevent, delay, or reverse the disease.
The Environmental Determinants of Diabetes in the Young (TEDDY) Study is designed to intensively study children from infancy to 15 years of age, at six clinical centers across four countries (Finland, Sweden, Germany, and the USA in Georgia/Florida, Colorado, and Washington). Infants screened at birth and identified as genetically (HLA) eligible were offered enrollment in the follow-up study, regardless of gender or ethnicity. The primary objective of this multi-center, prospective cohort study initiated in 2003 i the identification of infections agents, dietary factors, or other environmental exposures that trigger or protect against the development of islet autoimmunity and type 1diabetes (T1D).
|Silvis, Katherine; Aronsson, Carin A; Liu, Xiang et al. (2018) Maternal dietary supplement use and development of islet autoimmunity in the offspring: TEDDY study. Pediatr Diabetes :|
|Vatanen, Tommi; Franzosa, Eric A; Schwager, Randall et al. (2018) The human gut microbiome in early-onset type 1 diabetes from the TEDDY study. Nature 562:589-594|
|Salami, Falastin; Lee, Hye-Seung; Freyhult, Eva et al. (2018) Reduction in White Blood Cell, Neutrophil, and Red Blood Cell Counts Related to Sex, HLA, and Islet Autoantibodies in Swedish TEDDY Children at Increased Risk for Type 1 Diabetes. Diabetes 67:2329-2336|
|Smith, Laura B; Liu, Xiang; Johnson, Suzanne Bennett et al. (2018) Family adjustment to diabetes diagnosis in children: Can participation in a study on type 1 diabetes genetic risk be helpful? Pediatr Diabetes 19:1025-1033|
|Uusitalo, Ulla; Lee, Hye-Seung; Andrén Aronsson, Carin et al. (2018) Early Infant Diet and Islet Autoimmunity in the TEDDY Study. Diabetes Care 41:522-530|
|Pitchika, Anitha; Vehik, Kendra; Hummel, Sandra et al. (2018) Associations of Maternal Diabetes During Pregnancy with Overweight in Offspring: Results from the Prospective TEDDY Study. Obesity (Silver Spring) 26:1457-1466|
|Riikonen, Anne; Hadley, David; Uusitalo, Ulla et al. (2018) Milk feeding and first complementary foods during the first year of life in the TEDDY study. Matern Child Nutr 14:e12611|
|Elding Larsson, Helena; Lynch, Kristian F; Lönnrot, Maria et al. (2018) Pandemrix® vaccination is not associated with increased risk of islet autoimmunity or type 1 diabetes in the TEDDY study children. Diabetologia 61:193-202|
|Koletzko, Sibylle; Lee, Hye-Seung; Beyerlein, Andreas et al. (2018) Cesarean Section on the Risk of Celiac Disease in the Offspring: The Teddy Study. J Pediatr Gastroenterol Nutr 66:417-424|
|Stanfill, Bryan A; Nakayasu, Ernesto S; Bramer, Lisa M et al. (2018) Quality Control Analysis in Real-time (QC-ART): A Tool for Real-time Quality Control Assessment of Mass Spectrometry-based Proteomics Data. Mol Cell Proteomics 17:1824-1836|
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