Publications by authors named "Feng-Qin Rao"

Background: Neurodegenerative retinal diseases such as retinitis pigmentosa are serious disorders that may cause irreversible visual impairment. Ferroptosis is a novel type of programmed cell death, and the involvement of ferroptosis in retinal degeneration is still unclear. This study aimed to investigate the related ferroptosis genes in a mice model of retinal degeneration induced by light damage.

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  • The study focuses on the loss of retinal photoreceptors associated with ciliopathy disorders and explores the effects of a homozygous Cep250 knockout mouse model.
  • Researchers utilized various methods, including untargeted metabolomics and imaging techniques, to investigate retinal degeneration and found significant changes in the outer nuclear layer and scotopic responses.
  • Results indicated a mislocalization of proteins linked to arginine metabolism in Cep250-/- mice, suggesting that disrupted arginine pathways play a crucial role in retinal degeneration in these conditions.
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Background: Age-related macular degeneration (AMD) is one of the major causes of vision loss. Early AMD needs to be taken seriously, but the causal effects of lipid biomarkers on early AMD remain unclear.

Methods: In this study, two-sample Mendelian randomization (MR) analysis was performed to systematically assess the causal relationships between seven serum lipid biomarkers (apolipoprotein A (ApoA), apolipoprotein B (ApoB), total cholesterol (CHOL), high-density lipoprotein cholesterol (HDL-C), direct low-density lipoprotein cholesterol (LDL-C), lipoprotein A [Lp(a)], and triglycerides (TG)) and risk of early AMD.

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  • The study investigated the role of miR-96, a member of the retinal microRNA-183 cluster, in the development and function of photoreceptors in mice using CRISPR/Cas9 technology to create a mutant model.
  • Findings showed that miR-96 mutant mice experienced a delay in cone development, with mislocalization of cone-specific markers and alterations in retinal structure and function observable through ERG and OCT tests.
  • Despite the initial developmental delays, the study concluded that the absence of miR-96 does not completely halt photoreceptor development, indicating its critical role in the maturation of cones in the retina.
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Strictly anaerobic bacteria are important to both human health and industrial usage. These bacteria are sensitive to oxygen, therefore, it is preferable to manipulate these microbes in an anaerobic chamber. However, commercial anaerobic chambers (CACs) are expensive, making them less accessible to scientists with a limited budget, especially to those in developing countries.

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Purpose: Familial exudative vitreoretinopathy (FEVR) is a severe hereditary retinal disorder characterized by defects in retinal vascular development. To date, six genes have been reported to be responsible for this disease, including LRP5, FZD4, TSPAN12, NDP, ZNF408, and KIF11. The purpose of our study was to investigate the genetic defects in Chinese patients with FEVR through mutational analyses of 31 pedigrees.

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Purpose: Inherited retinal diseases (IRDs) are a clinically and genetically heterogeneous group of Mendelian disorders that plays a crucial role in the etiology of blindness across the world. Molecular genetic diagnosis of IRD remains extremely complex and challenging because mutations are only detected in 40% to 60% of cases. In this study, we aimed to dissect the contributions of copy number variations (CNVs) in IRD patients.

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