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Insights from 1096 clinical cases: pioneering a universal grading system for vernal keratoconjunctivitis management.
Br J Ophthalmol
January 2025
C J Shah Cornea Services, Sankara Nethralaya, Chennai, Tamil Nadu, India.
Aim: To analyse the clinical and demographic profiles of patients with vernal keratoconjunctivitis (VKC) and propose a grading for VKC based on corneal status and symptom periodicity rather than disease activity.
Methods: Retrospective observational study from January 2015 to January 2020 in India. VKC grading was based on past/present clinical signs and frequency of symptoms rather than disease activity.
RNA Methylation Homeostasis in Ocular Diseases: All Eyes on Me.
Prog Retin Eye Res
January 2025
Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, State Key Laboratory of Vision Health, China. Electronic address:
RNA methylation is a pivotal epigenetic modification that adjusts various aspects of RNA biology, including nuclear transport, stability, and the efficiency of translation for specific RNA candidates. The methylation of RNA involves the addition of methyl groups to specific bases and can occur at different sites, resulting in distinct forms, such as N6-methyladenosine (mA), N1-methyladenosine (mA), 5-methylcytosine (mC), and 7-methylguanosine (mG). Maintaining an optimal equilibrium of RNA methylation is crucial for fundamental cellular activities such as cell survival, proliferation, and migration.
View Article and Find Full Text PDFOcular inoculation of toad venom: toxic cataract and proteomic profiling.
Front Med (Lausanne)
January 2025
Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
Purpose: To report a singular case of cataract caused by toad venom inoculation and to scrutinize the pathological mechanisms through proteomic sequencing of the lens specimen.
Methods: A young Chinese male presented with progressively deteriorating vision in his right eye subsequent to a history of toad venom inoculation. He was diagnosed with a toxic cataract, and underwent phacoemulsification cataract surgery.
Vitamin A supply in the eye and establishment of the visual cycle.
Curr Top Dev Biol
January 2025
Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States. Electronic address:
Animals perceiving light through visual pigments have evolved pathways for absorbing, transporting, and metabolizing the precursors essential for synthesis of their retinylidene chromophores. Over the past decades, our understanding of this metabolism has grown significantly. Through genetic manipulation, researchers gained insights into the metabolic complexity of the pathways mediating the flow of chromophore precursors throughout the body, and their enrichment within the eyes.
View Article and Find Full Text PDFThe multifaceted roles of retinoids in eye development, vision, and retinal degenerative diseases.
Curr Top Dev Biol
January 2025
Center for Translational Vision Research, Department of Ophthalmology, Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA, United States; Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA, United States; Department of Chemistry, University of California Irvine, Irvine, CA, United States; Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA, United States. Electronic address:
Vitamin A (all-trans-retinol; at-Rol) and its derivatives, known as retinoids, have been adopted by vertebrates to serve as visual chromophores and signaling molecules, particularly in the eye/retina. Few tissues rely on retinoids as heavily as the retina, and the study of genetically modified mouse models with deficiencies in specific retinoid-metabolizing proteins has allowed us to gain insight into the unique or redundant roles of these proteins in at-Rol uptake and storage, or their downstream roles in retinal development and function. These processes occur during embryogenesis and continue throughout life.
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