It has been suggested that hemodynamic instability and impaired vascular reactivity during combined ultrafiltration-hemodialysis are related to bioincompatibility factors such as dialysate-derived contaminants or the dialyzer. The study presented here investigated whether vascular reactivity could be improved by the use of sterile dialysate. Forearm vascular resistance and venous tone (measured...

BACKGROUND Although modest seasonal variations in blood biochemical composition have been reported in end-stage renal disease patients treated with haemodialysis, there have been no adequate explanations. The current study aimed to explore whether these phenomena are present in peritoneal dialysis patients and to discuss these variations. METHODS This was a retrospective study with an enrollm...

A photobioreactor system has been designed, constructed and implemented to achieve high photosynthetic rates in high-density photoautotrophic algal cell suspensions. This unit is designed for efficient oxygen and biomass production rates, and it also can be used for the production of secreted products. A fiber-optic based optical transmission system that is coupled to an internal light distribu...

INTRODUCTION The infectious syndrome associated with peritoneal dialysis is the most important complication of this substitution method of the renal function, also being the main cause of method failure. Refractory peritonitis can cause real problems in the differential diagnosis with secondary peritonitis, which can delay the surgical intervention and endanger the patient's life. MATERIALS A...

The article deals with the study of processing quality of milk-protein concentrates obtained by ultrafiltration. Creaming ability of milk-protein concentrates obtained by ultrafiltration is inevitably associated with the presence of rehydrated proteins in its composition. With increasing temperature, the ability of proteins to absorb on the plasma-gas interface is reduced, as evidenced by a dec...

Modified ultrafiltration (MUF) has been widely used for the removal of extracellular water in the immediate postcardiopulmonary bypass (CPB) period. The reported benefits of this technique are improved hematological status and hemodynamic stability post-CPB, as well as a decrease in blood utilization during the operation. MUF has also been associated with improved pulmonary status along with en...

in the present study, the growth of phospholipids' micelles in canola oil by chemical pretreatment and their separation by using membrane technology was investigated. aqueous solutions of calcium chloride (1% w/w) and edta (150 mm) were added to canola oil miscella before ultrafiltration process. ultrafiltration was conducted by a flat sheet pvdf membrane with two different mwcos (50 kda, m116,...

Fouling has become the main problem in long-term application of ultrafiltration (UF) membrane for water and wastewater treatment, significantly reducing productivity. In this paper, fouling on polysulfone-based was analyzed using Hermia’s model during textile treatment. The UF been prepared by blending polysulfone (PSf), acetone, PEG400 DMAc, with ZnO nanoparticles at a concentration 1% weight ...