The current study was aimed at isolating and identifying the halophilic and halotolerant bacteria which can produce mercuric reductase in Gavkhuni wetland in Iran. Moreover, tracking and sequencing merA gene and kinetic properties of mercuric reductase in the selected strain were performed in this study. Soil samples were taken from Gavkhuni wetland and cultured in nutrient agar medium...

In 325 cases of industrial chemical cyanosis notified to Her Majesty's Factory Inspectorate for 1961-80 the incidence of poisonings showed considerable seasonal variation with substantially greater numbers occurring in the summer months. A correlation between the number of poisonings in any one year and the hotness of that summer was also shown. The vast majority of incidents occurred during th...

Nitrite is an intermediate in the oxidation of ammonium to nitrate. An elevated ambient nitrite concentration is a potential problem for freshwater fish since nitrite is actively taken up across the gills in competition with chloride. Nitrite is a well-known toxicant for fish as well as a disrupter of multiple physiological functions including ion regulatory, respiratory, cardiovascular, endocr...

Comparison of the concentrations and activities of components in the oxidative-antioxidative system between blood plasma and serum. Blood plasma and serum samples were obtained from 38 healthy adults to evaluate malondialdehyde concentration, the total antioxidative capacity, superoxide dismutase activity, protein and non-protein sulphydryl groups, ascorbate, haemoglobin, methaemoglobin and pro...

Winter climate change has great potential to affect the functioning of terrestrial ecosystems. In particular, increased soil frost associated with reduced insulating snow cover may impact nitrogen (N) dynamics in cold ecosystems, but little is known about variability these effects among aggregates. A manipulation experiment was conducted investigate absence on N cycling within aggregates a spru...

Trazpiroben (TAK-906), a peripherally selective dopamine D2/D3 receptor antagonist, is being developed for the treatment of patients with gastroparesis. The potential trazpiroben to act as perpetrator or victim cytochrome P450 (CYP)- transporter- mediated drug–drug interactions (DDIs) was evaluated following latest regulatory guidelines.In vitro studies revealed that metabolised mainly through ...

A 39-year-old man presented to the emergency department after falling downstairs after he consumed a large quantity of alcohol. On examination, he had altered mental state (GCS 14), central cyanosis and low oxygen saturation of 86%, despite 100% oxygen being administered. His arterial blood gas confirmed diagnosis of methaemoglobinaemia with a methaemoglobin percentage of 14.08. He was treated ...

Seventy males (40 smokers and 30 non-smokers) between the ages of 35 to 70 years were selected for this study. A detailed medical and smoking history was taken and a thorough medical examination was done. Smokers included had history of smoking 10 or more cigarettes per day for at least 5 years. None of the subjects were found to have diabetes, liver or respiratory disease, congestive cardiac f...

The in vivo and in vitro oxygen-binding capacity of haemoglobin was determined on 10 occasions in nine patients who required mechanical ventilation. The in vitro sample was tonometered with 97% oxygen for 10 min and then with air, while the in vivo sample was obtained after 20 min of lung ventilation with pure oxygen. Subsequent laboratory procedures were identical for both samples. The mean ox...

In forest ecosystems, variations in aboveground litter input caused by global changes, substantially alter soil N cycling. field-grown plants, few studies have directly measured root exudation rates and quantified their effects on transformations under manipulation. We transformation rate responses to manipulation a Pinus massoniana plantation, unravelled the effect of transformations. situ P. ...