HEALTH NEWS

Study Title:

Mixed Type I and Type II Diabetes

Study Abstract

Type 1 and type 2 diabetes frequently co-occur in the same families, suggesting common genetic susceptibility. Such mixed family history is associated with an intermediate phenotype of diabetes: insulin resistance and cardiovascular complications in type 1 diabetic patients and lower BMI and less cardiovascular complications as well as lower C-peptide concentrations in type 2 diabetic patients. GAD antibody positivity is more common in type 2 diabetic patients from mixed families than from common type 2 diabetes families. The mixed family history is associated with more type 1-like genetic (HLA and insulin gene) and phenotypic characteristics in type 2 diabetic patients, especially in the GAD antibody-positive subgroup. Leaving out the extreme ends of diabetes phenotypes, young children progressing rapidly to total insulin deficiency and strongly insulin-resistant subjects mostly with non-Europid ethnic origin, a large proportion of diabetic patients may have both type 1 and type 2 processes contributing to their diabetic phenotype.

Study Information

Tuomi T.
Type 1 and type 2 diabetes: what do they have in common?
Diabetes.
2005 December
Department of Internal Medicine/Diabetology, P.O. Box 340, Helsinki University Central Hospital, FIN-00029 HUS, Helsinki, Finland.

Full Study

http://diabetes.diabetesjournals.org/cgi/content/full/54/suppl_2/S40
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