Late-onset retinal degeneration (LORD) is a rare autosomal dominant ocular disease characterized by onset in the fifth to sixth decade with night blindness and punctate yellow-white deposits between the retinal pigment epithelium (RPE) and Bruch's membrane, progressing to severe central and peripheral degeneration, with choroidal neovascularization and chorioretinal atrophy. LORD is caused by a mutation in the CTRP5 (C1QTNF5) gene, which encodes a short-chain collagen, changing a highly conserved serine to arginine (Ser163Arg). The mutation results in abnormal high molecular weight aggregate formation which may alter its higher-order structure and interactions.
Category
Nervous system disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
09 Diseases of the visual system
Disorders of the eyeball posterior segment
Disorders of the retina
9B70 Inherited retinal dystrophies
H01130 Late-onset retinal degeneration
Hayward C, Shu X, Cideciyan AV, Lennon A, Barran P, Zareparsi S, Sawyer L, Hendry G, Dhillon B, Milam AH, Luthert PJ, Swaroop A, Hastie ND, Jacobson SG, Wright AF
Title
Mutation in a short-chain collagen gene, CTRP5, results in extracellular deposit formation in late-onset retinal degeneration: a genetic model for age-related macular degeneration.
