Growth studies with Lemna minor revealed the additive and synergistic growth-inhibiting properties of the canaline-urea cycle amino acids. Simultaneous canavanine and canaline treatment caused an additive reduction in frond production. Ureidohomoserine interacted with canaline or canavanine to affect synergistically L. minor growth by enhancing individual canavanine or canaline toxicity and inc...

Introduction: Obstructive uropathy (OU) is defined as an alteration in any level of the urinary tract that caused by abnormalities its system organs, or external pathological factors. Hydronephrosis and progressive renal impairment are signs upper-tract OU. OU accounted to be around 0,9% - 3,8% prevalence for etiology hydronephrosis. The aim trea...

A laboratory incubation experiment in a closed dynamic air flow system was conducted for 30 days to estimate the volatilization loss of NH3-N from 0, 1, 2 and 3% Nano-ZnO coated urea treated soil. The volatilized soil chambers collected titrated every 48 hours. Another carried out study effect coating with on inorganic nitrogen (NH4-N NO3-N) content soils at 2, 4, 8, 14 21 period. two experimen...

Glycolaldehyde, produced from cracking of glucose, was tested as a substitute for formaldehyde in urea-based wood adhesives. Initially, different parameters (water content, aldehyde/urea-ratio, curing temperature, and time) were screened to identify the optimal conditions providing highest bond strength. Afterwards, system reformulated 2-component compared urea-formaldehyde system, which showed...

The effect of urea as an electrophoretic buffer solution modifier on the ion-association (IA) capillary electrophoresis (CE) separation of four anionic metal complexes of Al(III), Co(III), Cr(III), and Fe(III) with 2,2'-dihydroxyazobenezene-5,5'-disulfonate (DHABS) using a hydrophobic ion-association agent, tetrapentylammonium bromide, was studied. The mutual separation of the four anionic meta...

in order to investigate the effect of diets contained urea and molasses on fattening performance and blood urea nitrogen (bun) density of male lambs, 72 arabic male lambs were used in a completely randomized design with a 3×4 factorial experiment, for 90 days. the experimental diets contained; 0, 0.5, 1 and 1.5% of urea each with 0, 7.5 and 15% of molasses, in isoprotein and isocalaric diets. t...

background: the risk of developing tuberculosis is high among chronic hemodialysis patients. the tuberculin skin test (tst) has been in use for diagnosing latent tb, but few data are available on tst in hemodialysis patients. objective: this study was done to identify the tst reactivity and frequency of booster effect in serial tst among hemodialysis patients. methods: a total of 100 patients i...

ROCH-RAMEL, FRANCOISE, J. DI~ZI, FRANGOISE CHOM~TY, PIERRETTE MICHOUD, AND G. PETERS. Disposal of large urea overloads by the rat kidney: a micropuncture study. Am. J. Physiol. 2 1 a(6) : 1524-1532. 1970.-In rats overloaded with urea, at plasma concentrations of 60-80 mM, the proximal fractional reabsorption of urea was not impaired, whereas the cortical tissue-to-plasma urea concentration rati...

Introduction The concentration of substances, including urea, creatinine, and uric acid, can be used as an index to measure toxic uremic solutes in the blood during dialysis and interdialytic intervals. The on-line monitoring of toxin concentration allows for the clearance measurement of some low-molecular-weight solutes at any time during hemodialysis.The aim of this study was to determine the...