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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-9-29
pubmed:abstractText
Transcription factor MafA is a key molecule in insulin secretion and the development of pancreatic islets. Previously, we demonstrated that some of the MafA-deficient mice develop overt diabetes mellitus, and the phenotype of these mice seems to be mild probably because of redundant functions of other Maf proteins. In this study, we generated hybrid transgenic mice that were MafA-deficient and also over-expressed MafK specifically in beta cells (MafA(-/-)MafK(+)). MafA(-/-)MafK(+) mice developed severe overt diabetes mellitus within 5weeks old, and showed higher levels of proteinuria and serum creatinine. Histological analysis revealed that embryonic development of beta cells in the MafA(-/-)MafK(+) mice was significantly suppressed and the reduced number of beta cells was responsible for the early onset of diabetes. Furthermore, after uninephrectomy, these mice demonstrated three characteristics of human diabetic nephropathy: diffuse, nodular, and exudative lesions. MafA(-/-)MafK(+) mice might be a useful model for the analysis of human diabetic nephropathy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1090-2104
pubmed:author
pubmed:issnType
Electronic
pubmed:day
13
pubmed:volume
389
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-40
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
MafA-deficient and beta cell-specific MafK-overexpressing hybrid transgenic mice develop human-like severe diabetic nephropathy.
pubmed:affiliation
Pathophysiology of Renal Diseases, Doctoral Program in Clinical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't