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Inner ear defect similar to Alport's syndrome in the glomerulosclerosis mouse model Mpv17

  • The Mpv17 mouse strain is a recessive transgenic mouse mutant that develops glomerulosclerosis and nephrotic syndrome at a young age. The phenotype results from a loss of function of a gene coding for a hydrophobic peroxisomal protein of 176 amino acids of 20 kDa following its destruction by retroviral integration. To investigate a potential effect of the missing Mpv17 function on the inner ear light and electron microscopic investigations were performed on the inner ears of Mpv17 mice and controls. These revealed degeneration of the stria vascularis and spiral ligament, loss of cochlear neurons and degeneration of the organ of Corti. The alterations observed here were similar to those described for Alport's syndrome, an inherited disorder characterized by progressive nephritis and neurosensory deafness. These findings indicate that although the molecular cause is different, the Mpv17 mouse model may share pathological mechanisms involved in patients with Alport's syndrome. At present the Mpv17 mouse appears to be a suitable animal model for this disease and may help to further elucidate the relationship between the kidney and the inner ear.

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Document Type:Article
Parent Title (English):Eur Arch Otorhinolaryngol. (European Archives of Oto-Rhino-Laryngology and Head & Neck)
First Page:470
Last Page:474
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=9044568
Publication year:1996
Departments, institutes and facilities:Institut für funktionale Gen-Analytik (IfGA)
Dewey Decimal Classification (DDC):5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Entry in this database:2018/09/21