Background: Irritative symptoms including prolonged urgency and dysuria after GreenLight laser photoselective vaporization (PVP) of benign prostatic hyperplasia (BPH) are common complication. We aimed to compare the incidence of postoperative irritative symptoms of GreenLight XPS (GL-XPS) 180W laser system with GreenLight KTP (GL-KTP) 80W laser system for the treatment of BPH and evaluate the r...

The effect of poly(N-vinylpyrrolidone) (PVP) concentration on the synthesis and properties of silver nanoparticles (AgNPs) was investigated. Nanoparticles have been prepared by a chemical reduction method from the aqueous solution of silver nitrate and PVP as a stabilizing agent in the presence of sodium borohydride as a reducing agent. The nanosized silver colloids have been characterized usin...

The potential capabilities and analytical performance of lab-on-valve (LOV) manifold as a front end to amperometry have been explored for the on-line determination of morin. Meanwhile, the electrochemical behaviors of morin were investigated based on polyvinylpyrrolidone- (PVP-) doped carbon paste electrode (CPE), which found that PVP can significantly improve its oxidation peak current. The ex...

A study was carried out to assess the effect of Stress Coat® on slime production in goldfish (Carassius auratus) and koi (Cyprinus carpio). The study also investigated histological changes that might be associated with slime producing cells, and wound healing in koi. Several formulations of Stress Coat® were investigated and the results showed that polyvinylpyrrolidone (PVP), also known as povi...

Protein amyloids are characterized by aggregates that usually consist of fibres containing misfolded proteins and having a cross β-sheet conformation. These aggregates can eventually lead to several degenerative diseases like Alzheimer's disease, amyotrophic lateral sclerosis (ALS), Huntington's disease and Parkinson's disease. The present study describes the effect of chemically synthesized po...

We earlier observed a positive correlation between portal venous pressure (PVP) and the concentration of laminin in serum. Here we investigated whether the diagnostic efficacy could be improved by considering additional analytes and application of multivariate statistical analysis. In 102 patients with fibrotic liver disease of various etiologies we measured PVP as the gradient of the wedged an...

A novel formulation containing polyvinylpyrrolidone (PVP) K(30)-coated norcantharidin (NCTD) chitosan nanoparticles (PVP-NCTD-NPs) was prepared by ionic gelation between chitosan and sodium tripolyphosphate. The average particle size of the PVP-NCTD-NPs produced was 140.03 ± 6.23 nm; entrapment efficiency was 56.33% ± 1.41%; and drug-loading efficiency was 8.38% ± 0.56%. The surface morphology ...

BACKGROUND As an alternative to transurethral resection of the prostate (TURP), photoselective vaporization of the prostate (PVP) provides a bloodless, relatively painless relief of lower urinary tract symptoms for men with benign prostatic hyperplasia. Following a review of the evidence in 2006, the Ontario Health Technology Advisory Committee recommended that a study be conducted to evaluate ...

working in the potential region where the film is not active toward the substrate employed. When the electrocatalyst employed (first coating) is very efficient, is can be. evaluated by using eq 7 ( i K is large and the third term can be neglected). Then quantities iA and iL are obtained from the limiting currents of the current-potential curves recorded with singleand double-coated electrodes (...

Polyvinylidene fluoride/polyvinylpyrrolidone (PVDF/PVP) hollow fiber membranes were fabricated by dry-jet wet-spinning process. The correlated effects of the air gap length and PVP concentration ((1) the air gap length effect at the low and high PVP concentration in the dope solutions, as well as (2) the effect of the PVP concentration at the same air gap length) on the cross-section structure ...