Correlation of the composition of the urinary calculi with urine pH, especially of diurnal variation, and composition of urinary excretion was studied. Urine pH in the patients with uric acid stones was constantly low and urinary pH in the patients with apatite and struvite stones was always high. Diurnal variation was not observed. In patients with pure calcium oxalate stones, however, urinary...

BACKGROUND Peptidome profiling of human urine is a promising tool to identify novel disease-associated biomarkers; however, a wide range of preanalytical variables influence the results of peptidome analysis. Our aim was to develop a standardized protocol for reproducible urine peptidome profiling by means of magnetic bead (MB) separation followed by matrix-assisted laser desorption/ionization ...

Bolus application of epithelial Na + channel (EnaC) blockers causes marked and acute increases urine pH. Here, we provide evidence that the underlying mechanism involves direct inhibition H -K pump in collecting duct. This could a fundamental revision previously assumed suggested key role ENaC this response.

The performance of a prototype instrument, “CLINILAB Automated Urine Analyzer,” for automation and mechanization of urinalysis, was studied. Results of the chemical tests for which the instrument is used-pH, glucose, protein, ketone, bilirubin, and occult blood-were compared to those obtained on the same urine specimens by using “‘Bili-Labstix’ Reagent Strips.” Results for specific gravity obta...

This study describes optimization of headspace solid phase microextraction followed by gas chromatography equipped with a flame ionization detector for toluene at trace level in spiked urine. The parameters affecting the extraction and gas chromatographic determination of analytes were studied: extraction time and temperature; desorption time and temperature; addition of NaCl; and pH, volume an...

The health benefits of fruit and vegetable consumption are well recognized and a recent cancer prevention report suggested modifications to diet that included reductions in red meat and increases in plant foods. However, populations in the US and UK still do not meet the 5-A-Day target for a number of reasons, including motivational issues. A readily accessible measure or biomarker of dietary c...

There is increasing interest in source separation and treatment of urine so as to recover nitrogen and phosphate more efficiently than treating combined wastewater. Although previous studies primarily focused on struvite precipitation for the recovery of phosphorus, the composition of urine changes during storage. The present study compared the precipitation conditions for fresh urine and hydro...

I report how some adulterants affect results for drugs of abuse in urine as measured by Roche RIA, Syva emit d.a.u., and Abbott TDx fpia (fluorescence polarization immunoassay) for the following drugs: amphetamines, barbiturates, benzodiazepines, cannabinoids, cocaine, opiates, and phencyclidine (PCP). Sodium chloride interfered negatively with all of these drugs when assayed by emit and caused...

OBJECTIVES Histomorphologic studies have provided evidence of prostate-specific antigen (PSA)-producing tissue in the female urethra. Some urine samples from women in a small series were positive for PSA, but no systematic investigation of this subject has been done to date. METHODS In a prospective study, we analyzed whether PSA occurs in the urine of women and what factors induce detectable...

in this study, we determined the effects of replacing different levels of alfalfa with pistachio hull (ph) on feed intake, digestibility of nutrients, rumen fermentative parameters, blood metabolites and nitrogen metabolism in balochi male lambs. three male lambs (35±2 kg live weight) equipped with ruminal and abomasual cannulas were randomly assigned into a 3 × 3 latin square design. experimen...