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Endocrine Pathology

, Volume 18, Issue 1, pp 31–36

GAD67 Expression in the Fetal PancreasFirst Online: 16 May 2007

Abstract

Glutamic acid decarboxylase GAD is a major inhibitory neurotransmitter in the brain, which catalyses the reaction of l-glutamate to γ-aminobutyric acid. There are two isoforms of GAD, a 65-kDa form and a 67-kDa form, which are encoded by two different genes. As previous studies suggested a role for GAD67 splice variants during fetal pancreas development, we have investigated the mRNA expression of GAD67 and GAD67 splice variants in a series of 14 human fetal pancreases between 14 weeks gestation and term and in adult control pancreases by RT-PCR. In this study, we demonstrate mRNA expression of GAD67 and four GAD67 splice variants, including GAD25, in human fetal and adult specimens. Some of the splice variants, including various proportions of exon 7 or a new exon between exons 6 and 7, have not been described before in the human pancreas. We speculate that the expression of these GAD67 splice variants might be related to human fetal pancreas development.

Keywordsfetal development GAD pancreas alternative splicing human development  Download fulltext PDF



Autor: Esther Korpershoek - Aart M. Verwest - Ynske IJzendoorn - Robbert Rottier - Hemmo A. Drexhage - Ronald R. de Krijger

Fuente: https://link.springer.com/



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