Publications by authors named "Shigeyasu Kazama"

Article Synopsis
  • Exfoliation syndrome is a systemic disorder characterized by the buildup of abnormal protein aggregates in the eye, leading to increased risk of glaucoma and potential blindness.
  • The study aimed to explore the association between exfoliation syndrome and rare genetic variants that could affect protein function, using whole-exome sequencing on participants from 14 countries over 20 years.
  • Results showed that individuals with exfoliation syndrome were more likely to have harmful genetic variants in the CYP39A1 gene compared to those without the condition, indicating a potential genetic factor in the disorder.
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Article Synopsis
  • Exfoliation syndrome (XFS) is a significant risk factor for secondary glaucoma, contributing to blindness globally, with known genetic variants in LOXL1 and CACNA1A linked to the condition.
  • Researchers conducted a study analyzing samples from multiple countries, discovering a rare protective allele at LOXL1 and refining its association, which had been previously inconsistent across different populations.
  • A genome-wide association study identified seven significant genetic loci related to XFS, providing new insights into its biological mechanisms and emphasizing the role of rare LOXL1 variants in the disease's development.
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Exfoliation syndrome (XFS) is a common, age-related, systemic fibrillinopathy. It greatly increases risk of exfoliation glaucoma (XFG), a major worldwide cause of irreversible blindness. Coding variants in the lysyl oxidase-like 1 (LOXL1) gene are strongly associated with XFS in all studied populations, but a functional role for these variants has not been established.

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Article Synopsis
  • Exfoliation syndrome (XFS) is a common cause of a type of eye disease called open-angle glaucoma.
  • Researchers studied the DNA of nearly 1,500 people with XFS and compared it to over 1,100 healthy people from Japan, and then looked at even more data from around the world.
  • They found a new gene that seems to increase the chances of getting XFS and confirmed another gene that behaves differently in people from different backgrounds.
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Purpose: To determine the retinal thickness (RT), after vitrectomy with internal limiting membrane (ILM) peeling, for an idiopathic macular hole (MH) or an epiretinal membrane (ERM). Also, to investigate the effect of a dissociated optic nerve fiber layer (DONFL) appearance on RT.

Methods: A non-randomized, retrospective chart review was performed for 159 patients who had successful closure of a MH, with (n = 148), or without (n = 11), ILM peeling.

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Clinical findings and treatment of keratomycosis caused by Beauveria bassiana, an entomopathogenic filamentous fungus, are described for an 80-year-old woman, who was referred to the hospital for ocular pain and redness on the 9th day after an ocular injury caused by the frame of her glasses. She had a long history of recurrent diabetic iritis and continuously used topical antibiotics and corticosteroids. At her first visit, a slit-lamp examination indicated a corneal ulcer confined within the superficial stromal layer, along with a slight infiltration and edema.

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