Taipei Veterans General Hospital

About: Taipei Veterans General Hospital is a healthcare organization based out in Taipei, Taiwan. It is known for research contribution in the topics: Population & Cancer. The organization has 11878 authors who have published 16478 publications receiving 363424 citations. The organization is also known as: Táiběi Róngmín Zǒngyī Yuàn.

Atopic dermatitis and risk of ischemic stroke: a nationwide population-based study.

Abstract: Background. Epidemiological studies have shown a strong association between systemic inflammatory diseases, particularly allergic diseases, and cardiovascular diseases. However, the relationship between atopic dermatitis (AD) and ischemic stroke remains unclear.Method. The study identified 20,323 AD patients and 20,323 comorbidity-matched subjects between 2005 and 2008. The two cohorts were followed until 31 December 2009. Ischemic stroke and other cardiovascular events were determined.Results. During the follow-up period, 301 (1.48%) patients in the AD cohort and 228 (1.12%) matched subjects experienced ischemic stroke. After multivariate adjustment, patients with AD had a 1.33-fold (95% confidence interval (CI), 1.12–1.59; P = 0.001) increased incidence of ischemic stroke. Adjusted hazard ratios for the risk of ischemic stroke in patients with mild, moderate, and severe AD were 1.20 (95% CI, 1.00–1.45; P = 0.052), 1.64 (95% CI, 1.23–2.19; P = 0.001), and 1.71 (95% CI, 1.15–2.56; P = 0.008), resp...

Revisiting the importance of virulence determinant magA and its surrounding genes in Klebsiella pneumoniae causing pyogenic liver abscesses: exact role in serotype K1 capsule formation.

Abstract: Background Mucoviscosity-associated gene A (magA) is proposed to play a decisive role in the pathogenesis of liver abscesses due to Klebsiella pneumoniae. Although some investigators consider MagA to be a putative O-antigen ligase, it is also reportedly associated with the K1 antigen. Methods Using magA-positive serotype K1 K. pneumoniae STL43 isolated from a patient with liver abscess, we constructed 3 bacterial mutants by targeting genes within the same transcription unit, including magA, wcaG, and rfbP. The virulence of these mutants was determined by neutrophil phagocytosis and inoculation of mice. Transmission electron microscopy and Western blot analysis were used to define their surface polysaccharides. Results STL43 was resistant, and all 3 mutants were highly susceptible, to phagocytosis. None of the mutant strains caused death in mice at the lethal dose of STL43. In contrast to previous reports, transmission electron microscopy revealed that all 3 mutants were nonencapsulated. Analysis of surface polysaccharides revealed that all 3 mutants retained their O antigen but lost their K antigen/capsule. Furthermore, amino acid analysis showed that MagA shared a conserved domain of Wzy, the serotype-specific capsular polysaccharide polymerase. Conclusions In accordance with the bacterial polysaccharide gene nomenclature (BPGN) scheme, MagA should be renamed Wzy(KpK1), the capsular polymerase specific to K. pneumoniae serotype K1.