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Cited by 223

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

OPA1 Mutation and Late‐Onset Cardiomyopathy: Mitochondrial Dysfunction and mtDNA Instability

Open access
Chen, Le, Liu, Tingting, Tran, Alice, Lu, Xiyuan, Tomilov, Alexey A., Davies, Vanessa, Cortopassi, Gino, Chiamvimonvat, Nipavan, Bers, Donald M., Votruba, Marcela, Knowlton, Anne A.·2012·Journal of the American Heart Association

Abstract

Background: Mitochondrial fusion protein mutations are a cause of inherited neuropathies such as Charcot–Marie–Tooth disease and dominant optic atrophy. Previously we reported that the fusion protein optic atrophy 1 ( OPA 1) is decreased in heart failure. Methods and Results: We investigated cardiac function, mitochondrial function, and mtDNA stability in a mouse model of the disease with OPA 1 mutation. The homozygous mutation is embryonic lethal. Heterozygous OPA +/− mice exhibit reduced mtDNA copy number and decreased expression of nuclear antioxidant genes at 3 to 4 months. Although initial cardiac function was normal, at 12 months the OPA 1 +/− mouse hearts had decreased fractional shortening, cardiac output, and myocyte contraction. This coincided with the onset of blindness. In addition to small fragmented mitochondria, aged OPA 1 +/− mice had impaired cardiac mitochondrial function compared with wild‐type littermates. Conclusions: OPA 1 mutation leads to deficiency in antioxidant transcripts, increased reactive oxygen species, mitochondrial dysfunction, and late‐onset cardiomyopathy.

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Metadata

Authors
Chen, L., Liu, T., Tran, A., Lu, X., Tomilov, A. A., Davies, V., Cortopassi, G., Chiamvimonvat, N., Bers, D. M., Votruba, M., & Knowlton, A. A.
Venue
Journal of the American Heart Association
Published
2012-09-26
Volume
1
Issue
5
Pages
e003012-e003012
ISSN
2047-9980 (ISSN-L)
OpenAlex
W2099905877
Cited by
223
References
10
FWCI
5.11
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: OPA1 Mutation and Late‐Onset Cardiomyopathy: Mitochondrial Dysfunction and mtDNA Instability. https://app.cochat.ai/papers/10.1161/jaha.112.003012
The paper
Chen, L., Liu, T., Tran, A., Lu, X., Tomilov, A. A., Davies, V., Cortopassi, G., Chiamvimonvat, N., Bers, D. M., Votruba, M., & Knowlton, A. A. (2012). OPA1 Mutation and Late‐Onset Cardiomyopathy: Mitochondrial Dysfunction and mtDNA Instability. Journal of the American Heart Association. https://doi.org/10.1161/jaha.112.003012

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.