نتایج جستجو برای: congenital stationary night blindness
تعداد نتایج: 223938 فیلتر نتایج به سال:
Rhodopsin kinase (RK), a rod photoreceptor cytosolic enzyme, plays a key role in the normal deactivation and recovery of the photoreceptor after exposure to light. To date, three different mutations in the RK locus have been associated with Oguchi disease, an autosomal recessive form of stationary night blindness in man characterized in part by delayed photoreceptor recovery [Yamamoto, S., Sipp...
Retinal neural transmission represents a key function of the eye. Identifying the molecular components of this vital process is helped by studies of selected human genetic eye disorders. For example, mutations in the calcium channel subunit gene CACNA1F cause incomplete X-linked congenital stationary night blindness (CSNB2 or iCSNB), a human retinal disorder with abnormal electrophysiological r...
PURPOSE To report the clinical and genetic findings of one family with autosomal recessive cone dystrophy (CD) and to identify the causative mutation. METHODS An institutional study of three family members from two generations. The clinical examination included best-corrected Snellen visual acuity measurement, fundoscopy, the Farnsworth D-15 color vision test, a full-field electroretinogram (...
PURPOSE Mutations in the CACNA1F gene encoding the L-type calcium channel pore-forming Ca(v)1.4 (alpha1F) subunit in humans result in an incomplete form of congenital stationary night blindness (CSNB2) with residual photoreceptor function. It has been postulated that this residual function, at least in part, may be mediated by another L-type calcium channel subunit, Ca(v)1.3 (alpha1D), expresse...
Purpose To assess clinical characteristics, foveal structure, mutation spectrum, and prevalence rate of Åland eye disease (AED)/incomplete congenital stationary night blindness (iCSNB). Methods A retrospective survey included individuals diagnosed with AED at a national low-vision center from 1980 to 2014. A subset of affected males underwent ophthalmologic examinations including psychophysic...
Mutations in the CACNA1F gene (voltage-dependent L-type calcium channel alpha1F subunit) encoding retinal Ca(v)1.4 L-type Ca2+ channels cause X-linked recessive congenital stationary night blindness type 2 (CSNB2). Many of them are predicted to yield nonfunctional channels. Complete loss of Ca(v)1.4 function is therefore regarded as a pathogenetic mechanism for the impaired signaling from photo...
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