Zusammenfassung
Diabetes mellitus Typ 2 hat weltweit epidemische Ausmaße angenommen und gewinnt auch in der Kinderheilkunde zunehmend an Bedeutung. Familienuntersuchungen und Zwillingsstudien belegten, dass die genetische Prädisposition einen erheblichen Einfluss auf seine Entstehung hat. Genomweite Linkageanalysen und Assoziationsstudien konnten einige Kandidatengene identifizieren, die für die Entwicklung eines Typ-2-Diabetes eine Rolle spielen. Polymorphismen z. B. im PPARγ-, KCNJ11- und Insulinrezeptorsubstrat-1-Gen sind mit einem erhöhten Risiko für Diabetes mellitus Typ 2 assoziiert. Zudem liegen in unterschiedlichen Populationen unterschiedliche genetische Prädispositionen vor. Die molekulargenetische Aufklärung monogenetischer Diabetesformen, die mit Insulinresistenz oder gestörter Insulinsekretion einhergehen, hat zum besseren Verständnis der Pathogenese des Typ-2-Diabetes beigetragen.
Abstract
Type 2 diabetes mellitus has reached epidemic proportions worldwide and is also becoming increasingly important in pediatrics. Family studies and twin studies have shown that the genetic predisposition has an important impact on the development of type 2 diabetes. Genome-wide linkage studies and association studies have identified various candidate genes that are thought to be involved in the development of type 2 diabetes. Polymorphisms in the PPARγ gene, the KCNJ11 gene, and the insulin receptor substrate 1 gene and others are associated with an elevated risk of development of type 2 diabetes. In addition, these studies also suggest that the genetic predisposition to type 2 diabetes differs in different populations. Elucidation of the molecular basis of monogenetic forms of diabetes associated with insulin resistance or disturbed insulin secretion has also added to our understanding of the pathogenesis of type 2 diabetes.
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Grulich-Henn, J. Genetik des Diabetes mellitus Typ 2 und verwandter Diabetesformen. Monatsschr Kinderheilkd 153, 921–926 (2005). https://doi.org/10.1007/s00112-005-1225-z
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DOI: https://doi.org/10.1007/s00112-005-1225-z