Determination of the ratio of testosterone to epitestosterone (T/E) in urine is used to detect testosterone administration in athletes, with a ratio > 6 considered as evidence of an offense. We show that administration of ketoconazole, which inhibits testosterone biosynthesis, may be useful for differentiating between an athlete who is using testosterone and one who naturally gives a ratio > 6....

This paper presents the results of determination of activity concentration of 238U and 234U in urine samples of people living in Warsaw (capital of Poland) to evaluate background level of these radionuclides excretion rate (mBq day-1). The samples were taken from women and men in age between 3 and 97 years. The results obtained for 238U daily excretion rate were in range 0.44-30.54 mBq day-1 an...

Four orchardgrass diets ranging in cell wall content from 60 to 78% were fed to sheep, and relationships among intake, digestion, passage and ruminal measurements were determined. As cell wall concentration increased, dry matter intake, digestible energy intake, dry matter digestibility and excretion rate decreased, while cell wall intake rumen volume, rumen cell wall and retention time increas...

It has previously been shown that reducing sugars are frequently excreted in the urine by mature and premature newborn babies (Haworth and McCredie, 1956; Haworth and MacDonald, 1957). Other workers, using paper chromatographic methods, have also found small amounts of sugars in the urines of children and usually higher concentrations of lactose and galactose in urines from young babies (Woolf,...

This experiment was designed to explore whether brain norepinephrine (NE) serves as a specific reward system for the power drive. Previous research has indicated that 3-methoxy-4-hydroxyphenyl glycol (MHPG), a urinary metabolite reflecting central NE turnover, is positively correlated with features of assertiveness which one might expect of a person high in the need for power (n power) or in a ...

The blue catalase test is easy to perform and economical of materials. In a series of 529 adult female hospital patients it appeared to be a good screening test for pyuria and haematuria, detecting all but one of the specimens examined with more than 20 red and white cells combined per cubic millimetre of urine and 95.2% of those with more than 10 cells. It indicates a raised leucocyte or red c...

The determination of adjustment method of urinary mercury in spot urine is one of the important issues in assessing the health risks of mercury workers. But there have been debates about whether creatinine or other forms of correction for urinary concentration are better in reducing the variation of urinary mercury. We evaluated four adjustment methods-specific gravity, creatinine, log creatini...

OBJECTIVE The value of microalbuminuria (MA) in predicting renal disease and premature mortality in longer duration type 1 diabetes is unclear. RESEARCH DESIGN AND METHODS We followed 135 patients with long-standing type 1 diabetes (>30 years' duration) over a 7-year period, recording albuminuria and other clinical variables. Vital status was ascertained and cause of death was recorded. RES...

This study reports the effects of a short-term (60 min) low-dose (20 ng x kg(-1) x min(-1)) infusion of synthetic urodilatin (URO) in patients with liver cirrhosis. URO is a natriuretic peptide. A total of 15 cirrhotic patients with ascites and nine without ascites participated in a randomized, double-blind, placebo-controlled study in a crossover design. Renal hemodynamics were estimated by a ...

Initial studies showing an approximately 80% rate of progression from microalbuminuria (MA) to proteinuria in type 1 diabetic patients led to the broad acceptance of MA as a useful clinical predictor of increased diabetic nephropathy (DN) risk. Some MA patients, however, have quite advanced renal structural changes, and MA may, in these cases, be a marker rather than a predictor of DN. More rec...