The 24-hour urinary output of 3-methoxy-4-hydroxy mandelic acid (V.M.A.) has been determined in 20 normal adults, 150 hypertensive patients, and four cases of phaeochromocytoma. In this last group estimations of urinary catecholamines and total urinary methylated amines were also performed and the overall results have been compared with the urinary excretory pattern of catecholamines and their ...

The objective of this study was to test the hypothesis that serum biotin concentration and biotin balance (consumed - [urinary output + fecal output]) measured as total avidin-binding substances (biotin + biotin metabolites) are responsive to changes in the proportions of dietary alfalfa meal and concentrate fed to sheep. Eight sheep (initial BW = 40 kg) consumed a pelleted alfalfa meal-based d...

OBJECTIVE We examined the hypothesis that higher cerebral oxygen saturation (rSO2) during RCP is correlated with urinary output. METHODS Between December 2002 and August 2006, 12 patients aged 3 to 61 days and weighing 2.6 to 3.4 kg underwent aortic arch repair with RCP. Urinary output and rSO2 were analyzed retrospectively. Data were assigned to either of 2 groups according to their correspo...

Increasing the urinary output of free thiol groups protects against cyclophosphamide-induced bladder toxicity. In the present study, intact rats, isolated perfused kidneys, and freshly isolated cells from various rat organs are used to compare the efficacy of N-acetylcysteine and sodium 2-mercaptoethane sulfonate (mesna) as sources of urinary thiols. In intact rats given a single i.v. dose of m...

Nitric oxide is biosynthesized from the amino acid L-arginine by the enzyme nitric oxide synthase. Nitric oxide is a vasodilator, a neurotransmitter, and may modulate immune function. The experiments presented here were performed to determine whether the synthesis of nitric oxide is increased following experimental burn injury in rats. After a 30% total body surface area burn in 300-g Lewis rat...

This study was conducted to determine the effect of experimentally increased glucose demand on voluntary consumption of molasses by dairy calves. Three-week-old calves received 0.365 g of phlorizin by s.c. injection. Urinary output and molasses consumption were measured hourly, and urinary glucose concentration was screened. Molasses consumption for the 24 h after treatment was (mean +/- SE) 72...

To the Editor Monitoring urine output remains essential to the care of adult patients admitted to the hospital. In acute, decompen-sated heart failure, ongoing assessment of urine output is required to adjust diuretic dosing in keeping with current recommendations for hospitalized patients. [1] In patients with acute kidney injury, assessment of urine output is essential for diagnosis and manag...