CONTEXT: Dietary factors modifying type 1 diabetes mellitus (DM) risk have been proposed, but little is known if they trigger the islet autoimmunity that precedes clinical disease. OBJECTIVE: To determine whether breastfeeding duration, food supplementation, or age at introduction of gluten-containing foods influences the risk of developing islet autoantibodies. DESIGN AND SETTING: Prospective natural history cohort study conducted from 1989 to 2003 in inpatient/outpatient clinics in Germany. PARTICIPANTS: The BABYDIAB study follows newborn children of parents with type 1 DM. Eligibility requirements were met in 1610 children. Blood samples were obtained at birth, age 9 months, 2, 5, and 8 years. Dropout rate was 14.4% by age 5 years. Breastfeeding data were obtained by prospective questionnaires (91% complete), and food supplementation data were obtained by family interview (72% for food supplementation and 80% for age of gluten introduction). MAIN OUTCOME MEASURE: Development of islet autoantibodies (insulin, glutamic acid decarboxylase, or IA-2 antibodies) in 2 consecutive blood samples. RESULTS: Life-table islet autoantibody frequency was 5.8% (SE, 0.6%) by age 5 years. Reduced total or exclusive breastfeeding duration did not significantly increase the risk of developing islet autoantibodies. Food supplementation with gluten-containing foods before age 3 months, however, was associated with significantly increased islet autoantibody risk (adjusted hazard ratio, 4.0; 95% confidence interval, 1.4-11.5; P =.01 vs children who received only breast milk until age 3 months). Four of 17 children who received gluten foods before age 3 months developed islet autoantibodies (life-table 5-year risk, 24%; SE, 10%). All 4 children had the high-risk DRB1*03/04,DQB1*0302 genotype. Early exposure to gluten did not significantly increase the risk of developing celiac disease-associated autoantibodies. Children who first received gluten foods after age 6 months did not have increased risks for islet or celiac disease autoantibodies. CONCLUSION: Ensuring compliance to infant feeding guidelines is a possible way to reduce the risk of development of type 1 DM autoantibodies.
CONTEXT: Dietary factors modifying type 1 diabetes mellitus (DM) risk have been proposed, but little is known if they trigger the islet autoimmunity that precedes clinical disease. OBJECTIVE: To determine whether breastfeeding duration, food supplementation, or age at introduction of gluten-containing foods influences the risk of developing islet autoantibodies. DESIGN AND SETTING: Prospective natural history cohort study conducted from 1989 to 2003 in inpatient/outpatient clinics in Germany. PARTICIPANTS: The BABYDIAB study follows newborn children of parents with type 1 DM. Eligibility requirements were met in 1610 children. Blood samples were obtained at birth, age 9 months, 2, 5, and 8 years. Dropout rate was 14.4% by age 5 years. Breastfeeding data were obtained by prospective questionnaires (91% complete), and food supplementation data were obtained by family interview (72% for food supplementation and 80% for age of gluten introduction). MAIN OUTCOME MEASURE: Development of islet autoantibodies (insulin, glutamic acid decarboxylase, or IA-2 antibodies) in 2 consecutive blood samples. RESULTS: Life-table islet autoantibody frequency was 5.8% (SE, 0.6%) by age 5 years. Reduced total or exclusive breastfeeding duration did not significantly increase the risk of developing islet autoantibodies. Food supplementation with gluten-containing foods before age 3 months, however, was associated with significantly increased islet autoantibody risk (adjusted hazard ratio, 4.0; 95% confidence interval, 1.4-11.5; P =.01 vs children who received only breast milk until age 3 months). Four of 17 children who received gluten foods before age 3 months developed islet autoantibodies (life-table 5-year risk, 24%; SE, 10%). All 4 children had the high-risk DRB1*03/04,DQB1*0302 genotype. Early exposure to gluten did not significantly increase the risk of developing celiac disease-associated autoantibodies. Children who first received gluten foods after age 6 months did not have increased risks for islet or celiac disease autoantibodies. CONCLUSION: Ensuring compliance to infant feeding guidelines is a possible way to reduce the risk of development of type 1 DM autoantibodies.
Authors: Frederick W Miller; Lars Alfredsson; Karen H Costenbader; Diane L Kamen; Lorene M Nelson; Jill M Norris; Anneclaire J De Roos Journal: J Autoimmun Date: 2012-06-25 Impact factor: 7.094
Authors: David M Maahs; Nancy A West; Jean M Lawrence; Elizabeth J Mayer-Davis Journal: Endocrinol Metab Clin North Am Date: 2010-09 Impact factor: 4.741
Authors: D Sblattero; A Ventura; A Tommasini; L Cattin; S Martelossi; F Florian; R Marzari; A Bradbury; T Not Journal: Gut Date: 2006-01 Impact factor: 23.059