Learn More
PURPOSE To assess the prevalence of refractive error and visual impairment in school-age children in a metropolitan area of southern China. METHODS Random selection of geographically defined clusters was used to identify children 5 to 15 years of age in Guangzhou. Children in 22 clusters were enumerated through a door-to-door survey and examined in 71(More)
Forkhead box O3 (FoxO3a) is a forkhead family transcription factor playing important roles in non-neuronal differentiation, metabolism, proliferation, and survival, but its role in neuronal differentiation remains unclear. In the present study, we investigated the role of FoxO3a in neuronal differentiation and its underlying mechanisms. Our results showed(More)
Epithelial-mesenchymal transition (EMT) of retinal pigment epithelium (RPE) cells is a major pathologic change in the development of proliferative vitreoretinopathy (PVR), which leads to severe visual impairment. ERK1/2 pathway has been reported to play a key role in the carcinogenesis, cancer metastasis, and multiple fibrotic diseases. We hypothesized that(More)
PURPOSE To determine whether the overexpression of the proteasome catalytic beta5 subunit (PSMB5) can induce the expression of the catalytic subunits beta1 and beta2, enhance proteasome activity, and exert a cytoprotective effect in lens epithelial cells. METHODS Cells from the human lens epithelial cell line SRA01/04 (LECs) were stably transfected either(More)
A bounded-degree-1 set S in an undirected graph G = (V, E) is a vertex subset such that the maximum degree of G[S] is at most one. Given a graph G, the Maximum Bounded-Degree-1 Set problem is to find a bounded-degree-1 set S of maximum size in G. A notion related to bounded-degree sets is that of an s-plex used to define the cohesiveness of subgraphs in(More)
Cystatin C (CysC) is a cysteine protease inhibitor and previous studies have demonstrated that increasing endogenous CysC expression has therapeutic implications on brain ischemia, Alzheimer’s disease, and other neurodegenerative disorders. Our previous reports have demonstrated that the autophagy pathway was activated in the brain after experimental(More)
BACKGROUND Studies have demonstrated that autophagy pathways are activated in the brain after experimental subarachnoid hemorrhage (SAH) and this may play a protective role in early brain injury. However, the contribution of autophagy in the pathogenesis of cerebral vasospasm (CVS) following SAH, and whether up-regulated autophagy may contribute to(More)
Proliferation and epithelial-mesenchymal transition (EMT) of lens epithelium cells (LECs) may contribute to anterior subcapsular cataract (ASC) and posterior capsule opacification (PCO), which are important causes of visual impairment. Histone deacetylases (HDACs)-mediated epigenetic mechanism has a central role in controlling cell cycle regulation, cell(More)
The human lens is comprised largely of crystallin proteins assembled into a highly ordered, interactive macro-structure essential for lens transparency and refractive index. Any disruption of intra- or inter-protein interactions will alter this delicate structure, exposing hydrophobic surfaces, with consequent protein aggregation and cataract formation.(More)
PURPOSE To identify the mutation and the underlying mechanism of cataractogenesis in a five-generation autosomal dominant congenital lamellar cataract family. METHODS Nineteen mutation hot spots associated with autosomal dominant congenital cataract have been screened by PCR-based DNA sequencing. Recombinant wild-type and mutant human alphaB-crystallin(More)