ArticleTranslational vision science & technology2022
Noninvasive Ophthalmic Imaging Measures Retinal Degeneration and Vision Deficits in Ndufs4-/- Mouse Model of Mitochondrial Complex I Deficiency.
Article in Translational vision science & technology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 4 citations in OpenAlex.
- Mouse predation is dependent on a population of POU6F2-positive retinal ganglion cells.iScience · 2026Article
- Cell-intrinsic vulnerability and immune activation cooperate to drive degeneration in a mitochondrial complex I deficiency model of optic neuropathy.Journal of neuroinflammation · 2026Article
- Comparative transcriptomic analysis of retinal response to diverse cellular stresses reveals relative contributions of different cell death processes and signalling networks.Cell death & disease · 2025Article
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5 authors at 1 institution in 1 country.
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Abstract
Purpose: To characterize postnatal ocular pathology in a Ndufs4-/- mouse model of complex I deficiency using noninvasive retinal imaging and visual testing. Methods: Ndufs4-/- mice and wild-type (WT) littermates were analyzed at 3, 5, and 7 weeks postnatal. Retinal morphology was visualized by optical coherence tomography (OCT). OCT images were analyzed for changes in retinal thickness and reflectivity profiles. Visual function was assessed by electroretinogram (ERG) and optomotor reflex (OMR). Results: Ndufs4-/- animals have normal OCT morphology at weaning and develop inner plexiform layer atrophy over weeks 5 to 7. Outer retinal layers show hyporeflectivity of the external limiting membrane (ELM) and photoreceptor ellipsoid zone (EZ). Retinal function is impaired at 3 weeks, with profound deficits in b-wave, a-wave, and oscillatory potential amplitudes. The b-wave and oscillatory potential implicit times are delayed, but the a-wave implicit time is unaffected. Ndufs4-/- animals have normal OMR at 3 weeks and present with increasing acuity and contrast OMR deficits at 5 and 7 weeks. Physiological thinning of inner retinal layers, attenuation of ELM reflectivity, and attenuation of ERG b- and a-wave amplitudes occur in WT C57BL/6 littermates between weeks 3 and 7. Conclusions: Noninvasive ocular imaging captures early-onset retinal degeneration in Ndufs4-/- mice and is a tractable approach for investigating retinal pathology subsequent to complex I deficiency. Translational Relevance: Ophthalmic imaging captures clinically relevant measures of retinal disease in a fast-progressing mouse model of complex I deficiency consistent with human Leigh syndrome.
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