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Expression pattern of oxidative stress and antioxidant defense-related genes in the aging Fischer 344/NHsd rat cochlea

Published Date:

Feb 01 2012

Publisher's site:

http://dx.doi.org/10.1016/j.neurobiolaging.2011.12.027 New Site Icon

Source:

Neurobiol Aging. 33(8):1842.e1-1842.14.

[PDF-477.67 KB]

Details:

Personal Authors:

Tanaka, Chiemi ; Coling, Donald E. ; Manohar, Senthilvelan ; Chen, Guang-Di ; Hu, Bo Hua ; ... More ▼

Keywords:

[+]

Pubmed ID:

22300951

Pubmed Central ID:

PMC4077169

Description:

The biological mechanisms that give rise to age-related hearing loss (ARHL) are still poorly understood. However, there is growing recognition that oxidative stress may be an important factor. To address this issue, we measured the changes in the expression of cochlear oxidative stress and antioxidant defense-related genes in young (2 months old), middle-aged (12 months old), and old (21-25 months old) Fischer 344/NHsd (F344/NHsd) rats and compared gene expression changes with ARHL. A quantitative real-time reverse transcription polymerase chain reaction array revealed a significant age-related downregulation of only 1 gene, stearoyl-coenzyme A desaturase 1, and upregulation of 12 genes: 24-dehydrocholesterol reductase; aminoadipate-semialdehyde synthase; cytoglobin; dual oxidase 2; glutathione peroxidase 3; glutathione peroxidase 6; glutathione S-transferase, kappa 1; glutathione reductase; nicotinamide adenine dinucleotide phosphate (NAD(P)H) dehydrogenase, quinone 1; solute carrier Family 38, Member 5; thioredoxin interacting protein; and vimentin. Statistical analyses revealed significant correlations between gene expression and auditory function in 8 genes. Our results identified specific subsets of oxidative stress genes that appear to play an important role in ARHL in the Fischer 344/NHsd rat.

Document Type:

Journal Article

Collection(s):

CDC Public Access

Funding:

1R01OH008113/OH/NIOSH CDC HHS/United States
R01 DC010154/DC/NIDCD NIH HHS/United States

Main Document Checksum:

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Supporting Files:

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	nihms585441.nxml	application/octet-stream
	nihms585441f1.gif	image/gif
	nihms585441f1.jpg	image/jpeg
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