PURPOSE Identification of a novel rhodopsin mutation in a family with retinitis pigmentosa and comparison of the clinical phenotype to a known mutation at the same amino acid position. METHODS Screening for mutations in rhodopsin was performed in 78 patients with retinitis pigmentosa. All exons and flanking intronic regions were amplified by PCR, sequenced, and compared to the reference seque...

Retinitis pigmentosa (RP) is a severe hereditary eye disease characterized by progressive degeneration of photoreceptors and subsequent loss of vision. Retinitis pigmentosa (RP) is a clinically and genetically heterogeneous group of retinal diseases. Germline mutations of CNGB1 is associated with retinitis pigmentosa. We have identified and investigated a 34-year-old Chinese man with markedly h...

BACKGROUND About 37 genes have been reported to be involved in autosomal recessive retinitis pigmentosa, a hereditary retinal disease. However, causative genes remain unclear in a lot of cases. METHODS Two sibs of a Chinese family with ocular disease were diagnosed in Eye and ENT Hospital of Fudan University. Targeted sequencing performed on proband to screen pathogenic mutations. PCR combine...

INTRODUCTION Primary ciliary dyskinesia (PCD) is a rare disease classically transmitted as an autosomal recessive trait and characterised by recurrent airway infections due to abnormal ciliary structure and function. To date, only two autosomal genes, DNAI1 and DNAH5 encoding axonemal dynein chains, have been shown to cause PCD with defective outer dynein arms. Here, we investigated one non-con...

X-linked Retinitis Pigmentosa (XLRP) accounts for 10-20% of all RP cases, and represents the most severe subtype of this disease. Mutations in the Retinitis Pigmentosa GTPase Regulator (RPGR) gene are the most common causes of XLRP, accounting for over 70-75% of all XLRP cases. In this work, we analyzed all the exons of RPGR gene with Sanger sequencing in seven Chinese XLRP families, two of the...

BACKGROUND Several forms of ichthyosis are associated with neurologic manifestations, including Sjögren-Larsson syndrome, Refsum disease, and mental retardation-enteropathy-deafness-neuropathy-ichthyosis-keratoderma (MEDNIK) syndrome. We report a case of X-linked steroid sulfatase deficiency, ichthyosis, seizures, abnormal hair banding pattern, and unilateral polymicrogyria. OBSERVATIONS A 3-...

Retinitis pigmentosa (RP) is a blinding disease often associated with mutations in rhodopsin, a light-sensing G protein-coupled receptor and phospholipid scramblase. Most RP-associated mutations affect rhodopsin's activity or transport to disc membranes. Intriguingly, some mutations produce apparently normal rhodopsins that nevertheless cause disease. Here we show that three such enigmatic muta...

2 cases of laurence- moon-biedl syndrome are described in 2 rothers. they have 5 out of 6 cardinal symptoms of this syndrome i.e. : i) obesity ,2) genital dystrophia, 3) retinitis pigmentosa, 4)menal deficiency, 5) familial occurrence. besides, their only sister has ocular signs of beginning of retinitis igmentosa and one of their relatives had polydactylism and another ne cretinism. what is cu...