To estimate the influence of the digestive tract luminal ammonia pool on acute toxic effects of cyclophosphamide, the dynamics of blood ammonia, glutamine and urea level, symptoms of toxic action and the survival time have been studied in rats, intraperitoneally treated with cyclophosphamide, at the background of the gavage with non-lethal dose of ammonium acetate (12 mmol/kg, i.e., 0.35 LD50)....

PURPOSE To evaluate and compare the toxicological profiles of two quaternary ammonium compounds (QAC), benzalkonium chloride (BAK), and cetalkonium chloride (CKC), in standard solution or cationic emulsion formulations in rabbit eyes using newly developed in vivo and ex vivo experimental approaches. METHODS Seventy eyes of 35 adult male New Zealand albino rabbits were used in this study. They...

The objectives were to verify the effects of lack cytokinins (CKs), comparing tomato cv. Micro-Tom (MT, wild type) MT CKX2 (transgenic with less CKs) fed nitrate (NO3?) and ammonium (NH4+), in presence absence silicon (Si); if attenuation NH4+ toxicity by Si depends on increase CKs MT; 6-benzyladenine (6-BA) attenuates MT. Three experiments performed treatments via nutrient solution. First, gro...

Ammonia accumulation in biogas plants reactors is becoming more frequently encountered, resulting reduced methane (CH4) production. toxicity occurs when N-rich substrates represent a significant part of the plant’s feedstock. The aim this study was to develop an estimation method for effect ammonia on CH4 production plants. Two periods where plant operated at 3200 mg·L−1 (1st period) and 4400 (...

Sodium and Ammonium Lauryl Sulfate are anionic surfactants used in cosmetics as cleansing agents. In absorption, metabolism, and excretion studies, Sodium Lauryl Sulfate had a degenerative effect on the cell membranes because of its protein denaturing properties. Low levels of skin penetration may occur at high use concentration. Sodium Lauryl Sulfate had an LD50 of 0.8 to 1.10 g/kg in rats. A ...

The result indicates the possibility of creating methods to stimulate growth rate microalgae by extremely high frequency electromagnetic radiation (EHF EMF). Pollution quarry waste water with inorganic nitrogen compounds (ammonium, nitrate, nitrite) is an important problem in mining industry. Biological treatment use plant organisms and microorganisms show efficiency require less financial labo...