Urea rebound refers to an early postdialysis phenomenon in which urea returns to the systemic circulation, raising the blood level to a near plateau over a period of 0.5 to 1 hour [1]. The urea involved is believed to have come from either the intracellular compartment by means of diffusion resulting from the dialysis-induced concentration gradient [2,3], or tissues poorly perfused as a result ...

In Indonesia, pigeon is one who is familiar with humans, beside can be consumed, usually maintained for hobby or pleasure. One of the parasitic worms that infect the pigeon’s kidneys was Paratanaisia bragai (P. bragai). That worm can cause pathological changes in the renal pigeons. Evaluation of renal function can be done through checking of serum creatinine and urea. This study was conducted t...

ammonia is a toxic material for mammalians. it is detoxificated and converted to urea in the urea cycle in liver. each defect in the urea cycle cause increase in blood ammonia level. ornithine transcarbamylase enzyme (otc) is the second enzyme in the urea cycle that exists in mitochondria. otc deficiency is the most common hereditary disorder in the urea cycle. in this study, 45 hyper ammonia p...

Background: The purpose of this study was to ascertain the effects hot, dry spring and summer weather on endocrinological biochemical properties buffaloes with help physiological as well analysis. Methods: Like plasma glucose using GOD-POD kits, total protein Autospan Blood Urea Nitrogen MBK kits DAM assay, cortisol hormone by bovine enzyme linked immunosorbent assay kit etc. Result: During sea...

BACKGROUND Sequestration of creatinine, in both erythrocytes and other cells, has complicated the widespread application of creatinine kinetics in haemodialysis. The goal of this study was to determine whether creatinine kinetics could be described using a regional blood flow (RBF) model that also incorporated diffusion between intra- and extracellular fluids. METHODS Transport between intra-...

This study was carried out to investigate blood biochemical alteration in albino rats after cypermethrin treatment. Nitrogen contents of blood in the albino rats have been influenced by the amount of cypermethrin used for toxicity in the acute (1d) and sub chronic (7,14and21days) treatment in the present investigation. The free amino acid, total protein, urea, urea nitrogen, uric acid and creat...

A miniaturizedflow-injected thermal biosensor was developed for the determination of urea and L-lactate in undilutedblood in 1-L samples. The sensor employed a smallenzyme column constructedof stainlesssteeltubing and microbead thermistors. Urease and lactate oxidase/catalase were separately immobilized onto controlled-pore glass beads, which, in turn, were charged into the enzyme column. With ...

BACKGROUND A standardized practical method of post-dialysis blood sampling is required to improve the precision of using urea kinetics in the evaluation of haemodialysis dose and to permit comparative audit. The methods recommended in the Renal Association and Dialysis Outcomes Quality Initiative (DOQI) guidelines reduce the blood pump speed to a low rate at the end of haemodialysis before bloo...

We compared results for urea concentrations in plasma and serum as measured with the Kimble Blood Urea Nitrogen Analyzer method as the test method with those determined by continuous-flow analysis (AutoAnalyzer 1 method) as the comparison method. We evaluated accuracy and precision for patients' samples, National Bureau of Standards Standard Reference Material, College of American Pathologists ...

BACKGROUND AND PURPOSE Transport of urea across the blood-brain barrier is increased during postischemic cerebral reperfusion in the piglet. Ischemia/reperfusion also has been observed to increase apparent superoxide anion generation on the surface of the brain. The present study was designed to address the hypothesis that the increased transfer of urea into the brain after ischemia/reperfusion...