Publications by authors named "Szu-Wen Chen"

Purpose: The purpose of this study was to conduct a large-scale genome-wide association study (GWAS) and construct a polygenic risk score (PRS) for risk stratification in patients with dry eye disease (DED) using the Taiwan Biobank (TWB) databases.

Methods: This retrospective case-control study involved 40,112 subjects of Han Chinese ancestry, sourced from the publicly available TWB. Cases were patients with DED (n = 14,185), and controls were individuals without DED (n = 25,927).

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Purpose: Retinal detachment (RD) is a sight-threatening ocular disease caused by separation of the neurosensory retina from the underlying retinal pigment epithelium layer. Its genetic basis is unclear because of a limited amount of data. In this study, we aimed to identify genetic risk loci associated with RD in participants without diabetes mellitus and to construct a polygenic risk score (PRS) to predict the risk of RD.

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To elucidate the role of the C-terminal portion of Gag in the incorporation of human immunodeficiency virus type 1 (HIV-1) Gag-Pol into virus particles, a series of HIV-1 Gag-Pol mutants with deletions in the C-terminal gag sequence was constructed and viral incorporation of the Gag-Pol deletion mutants was analyzed using co-transfecting 293T cells with a Pr55(gag) expression plasmid. The biological function of the incorporated HIV-1 pol gene product was tested using an infectivity assay of the released virus particles which were pseudotyped with the murine leukemia virus Env. Analysis indicated that Gag-Pol deletion mutants, with a removal of the matrix (MA) and/or nucleocapsid (NC) or of the N-terminal two thirds of the gag coding sequence, could be incorporated efficiently into virus particles and produce significant amounts of infectious virions when assayed in a single-cycle infection assay.

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We have previously demonstrated that a human immunodeficiency virus (HIV) chimeric Gag protein containing a partial replacement of the matrix domain by the viral protease domain (PR) could undergo autoprocessing with no virus particle production [J. Virol. 74 (2000) 3418].

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