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Review Article
Mechanisms of Disease
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Volume 345:971-980 September 27, 2001 Number 13
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Molecular Mechanisms and Clinical Pathophysiology of Maturity-Onset Diabetes of the Young
Stefan S. Fajans, M.D., Graeme I. Bell, Ph.D., and Kenneth S. Polonsky, M.D.

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Maturity-onset diabetes of the young (MODY) is a clinically heterogeneous group of disorders characterized by nonketotic diabetes mellitus, an autosomal dominant mode of inheritance, an onset usually before the age of 25 years and frequently in childhood or adolescence, and a primary defect in the function of the beta cells of the pancreas. MODY can result from mutations in any one of at least six different genes (Table 1). One of these genes encodes the glycolytic enzyme glucokinase (associated with MODY 2),3 and the other five encode transcription factors: hepatocyte nuclear factor (HNF) 4{alpha} (associated with MODY 1),4 . . . [Full Text of this Article]

Clinical Presentation

Function of the Gene Products Implicated in MODY

Glucokinase

HNF-1{alpha}, HNF-1{beta}, and HNF-4{alpha}

IPF-1

NeuroD1 (BETA2)

Clinical Features of Subtypes of MODY

MODY 2

MODY 1 and MODY 3

MODY 4

MODY 5

MODY Associated with Mutations in Other Genes

Mutations in MODY-Related Genes in Type 2 Diabetes

Genetic Screening for MODY

Conclusions


Source Information

From the Department of Internal Medicine, Division of Endocrinology and Metabolism, University of Michigan Health System, Ann Arbor (S.S.F.); the Howard Hughes Medical Institute and Departments of Biochemistry and Molecular Biology, Medicine, and Human Genetics, University of Chicago, Chicago (G.I.B.); and the Departments of Medicine and Cell Biology and Physiology, Washington University School of Medicine, St. Louis (K.S.P.).

Address reprint requests to Dr. Fajans at 3920 Taubman Ctr., Box 0354, University Hospitals, Ann Arbor, MI 48109-0354, or at sfajans@umich.edu.

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