some chemicals used by human such as food additives are mutagenic and mutagenicity effects analysis of them is very important because of considerable consumption by man. one of the most common methods used in the recognition of the chemicals' mutagenicity is salmonella typhimurium reverse mutation (ames) test. the purpose of the present study is mutagenicity effects analysis of sodium nitrite, ...

A new sensitive nitrite test, the SRN test, was evaluated for its suitability as a reliable screening technique for the detection of bacteriuria. The SRN test was compared to a currently available nitrite test, the Microstix nitrite test, and the results obtained with both nitrite tests were assessed in comparison with the results of the quantitative culture method. Of 158 cases of significant ...

In this issue of Hypertension is an article from several investigators in Stockholm, primarily of the Lundberg and Weitzberg groups at the Karolinska Institutet, which addresses one aspect of the potential use of orally ingested nitrite ions as therapies in humans for various diseases or, perhaps in food or food supplements, for some general improvement in cardiovascular or metabolic parameters...

For 422 male patients with symptoms indicative of a urinary tract infection, nitrite and leukocyte esterase activity dipstick test results were compared with results of culture of urine samples. The positive predictive value of a positive nitrite test result was 96%. Addition of results of the leukocyte esterase test did not improve the diagnostic accuracy of the nitrite test.

Objective: The purpose of this study is to evaluate the diagnostic value of nitrite test in comparison with urine culture (U/C) results in patients with Urinary tract infection (UTI) symptoms.Methods: This cross-sectional study was performed on 203 patients with UTI symptoms. Middle urine sample was taken into sterile plastic containers, and simultaneously the urine sample and the nitrite...

THOUGH ocular hypertension is one of the fundamental symptoms of glaucoma, we have as yet little clinical evidence for an evaluation of its pathological significance and real severity. The only elements at our disposal are those inferred by the study of the pressure curve both spontaneous and after miotic drugs. These studies show that at the onset of the disease the basic pressure may still be...

this study was aimed to evaluate the efficacy of dipstick tests (leukocyte esterase and nitrite) in diagnosis of spontaneous bacterial peritonitis (sbp) in cirrhotic patients. forty six children with ascites hospitalized between 2009 and 2010 in children medical center were enrolled in this study. reagent strip assays for leukocyte esterase and nitrite were performed on ascetic fluid and the re...

The Uriglox screening test was compared with the modified Griess Nitrite test and with standard urine cultures in the detection of significant bacteriuria on 400 ambulant and asymptomatic residents of the Athens Home for the Aged. The modified Nitrite test alone detected 62 %, and the Uriglox test 79 of the 103 cases with positive urine cultures in the examined group. There was significant over...