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Amyloid β (Aβ) has emerged as a pathophysiological driver in age-related macular degeneration (AMD), emphasizing its significance in the aetiology of this prevalent sight-threatening condition. The multifaceted nature of AMD pathophysiology, presumably involving diverse retinal cascades, corresponds with the complexity of Aβ-induced retinopathy. Therefore, targeting a broad array of pathogenic processes holds promise for therapeutic intervention in AMD-associated retinal pathology.
View Article and Find Full Text PDFGlipizide inhibits the glycation of alpha-crystallin: A combined in vitro and in silico approach in retinopathy management.
J Mol Graph Model
January 2025
Department of Refraction, Baoji Aier Eye Hospital, Bao'ji, 721000, China. Electronic address:
In human eye, structural proteins, known as crystallins, play a crucial role in maintaining the eye's refractive index. These crystallins constitute majority of the total soluble proteins found in the eye lens. Among them, α-crystallins (α-CR) is one of the major components.
View Article and Find Full Text PDFSafety and Vision Outcomes Following Gene Therapy for Bietti Crystalline Dystrophy: A Nonrandomized Clinical Trial.
JAMA Ophthalmol
January 2025
Xiamen Eye Center of Xiamen University, Xiamen, Fujian, China.
Importance: Bietti crystalline dystrophy (BCD) is a severe genetic retinopathy caused by variants in the CYP4V2 gene. Currently, there is no approved treatment for BCD.
Objective: To evaluate safety and vision outcomes following gene therapy with adeno-associated virus (AAV) encoding CYP4V2 (rAAV-hCYP4V2, NGGT001 [Next Generation Gene Therapeutics]).
Long-term sequelae of stage 4A ROP after successful management with lens-sparing vitrectomy.
BMJ Case Rep
December 2024
Department of Ophthalmology, Government Medical College and Hospital, Chandigarh, Chandigarh, India.
We present an unusual case of a macular lesion, possibly a spontaneously closed macular hole, at a 4-year follow-up visit, after lens-sparing vitrectomy (LSV) in stage 4A retinopathy of prematurity (ROP). Optical coherence tomography scans of the macula were suggestive of a spontaneously closed macular hole and fibrovascular proliferation at the equator. We hypothesise that tangential traction by residual posterior hyaloid could lead to late macular hole formation after LSV in ROP.
View Article and Find Full Text PDFNovel mTORC2/HSPB4 Interaction: Role and Regulation of HSPB4 T148 Phosphorylation.
Cells
December 2024
Department of Ophthalmology & Visual Sciences, The University of Michigan, Ann Arbor, MI 48109, USA.
HSPB4 and HSPB5 (α-crystallins) have shown increasing promise as neuroprotective agents, demonstrating several anti-apoptotic and protective roles in disorders such as multiple sclerosis and diabetic retinopathy. HSPs are highly regulated by post-translational modification, including deamidation, glycosylation, and phosphorylation. Among them, T148 phosphorylation has been shown to regulate the structural and functional characteristics of HSPB4 and underlie, in part, its neuroprotective capacity.
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