Lattice corneal dystrophy type I
Ultimo aggiornamento 18 Ago 2020
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Lattice corneal dystrophy type I is an eye disorder that affects the clear, outer covering of the eye called the cornea. The cornea must remain clear for an individual to see properly; however, in lattice corneal dystrophy type I, protein clumps known as amyloid deposits cloud the cornea, which leads to vision impairment. The cornea is made up of several layers of tissue, and in lattice corneal dystrophy type I, the deposits form in the stromal layer. The amyloid deposits form as delicate, branching fibers that create a lattice pattern.
Descrizione
Lattice corneal dystrophy type I is an eye disorder that affects the clear, outer covering of the eye called the cornea. The cornea must remain clear for an individual to see properly; however, in lattice corneal dystrophy type I, protein clumps known as amyloid deposits cloud the cornea, which leads to vision impairment. The cornea is made up of several layers of tissue, and in lattice corneal dystrophy type I, the deposits form in the stromal layer. The amyloid deposits form as delicate, branching fibers that create a lattice pattern.
Affected individuals often have recurrent corneal erosions, which are caused by separation of particular layers of the cornea from one another. Corneal erosions are very painful and can cause sensitivity to bright light (photophobia). Lattice corneal dystrophy type I is usually bilateral, which means it affects both eyes. The condition becomes apparent in childhood or adolescence and leads to vision problems by early adulthood.
Modelli di ereditarietà
The source lists the following possible inheritance patterns: Autosomal dominant. More than one pattern can apply in different cases.
Related genes
Altri nomi
Biber-Haab-Dimmer dystrophy
Related patient information and medicines
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Problemi agli occhi
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Problemi visivi
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Disordini di accumulo di glicogeno
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Test genetici
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Ulteriori letture e riferimenti
- Lattice corneal dystrophy type I; MedlinePlus, National Library of Medicine.
- Kannabiran C, Klintworth GK. TGFBI gene mutations in corneal dystrophies. Hum Mutat. 2006 Jul;27(7):615-25. doi: 10.1002/humu.20334.
- Klintworth GK. Corneal dystrophies. Orphanet J Rare Dis. 2009 Feb 23;4:7. doi: 10.1186/1750-1172-4-7.
- Liu Z, Wang YQ, Gong QH, Xie LX. An R124C mutation in TGFBI caused lattice corneal dystrophy type I with a variable phenotype in three Chinese families. Mol Vis. 2008 Jun 30;14:1234-9.
- Munier FL, Korvatska E, Djemai A, Le Paslier D, Zografos L, Pescia G, Schorderet DF. Kerato-epithelin mutations in four 5q31-linked corneal dystrophies. Nat Genet. 1997 Mar;15(3):247-51. doi: 10.1038/ng0397-247.
- Schmitt-Bernard CF, Chavanieu A, Derancourt J, Arnaud B, Demaille JG, Calas B, Argiles A. In vitro creation of amyloid fibrils from native and Arg124Cys mutated betaIGH3((110-131)) peptides, and its relevance for lattice corneal amyloid dystrophy type I. Biochem Biophys Res Commun. 2000 Jul 5;273(2):649-53. doi: 10.1006/bbrc.2000.2955.
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