Compared with conventional colonic preparation, the application of CRP as an adjunct could improve examinees' tolerance, decrease the incidence of adverse events, and maintain the quality of colonic cleansing.

We investigated dexamethasone therapy for preventing delayed encephalopathy after carbon monoxide (CO) poisoning. Eighty healthy male rats were exposed to CO and randomly divided into four groups: hyperbaric oxygen treatment (H), treatment (D), combined hyperbaric and dexamethasone treatment (C), and a control (M) group in which the rats inhaled CO to coma in the hyperbaric oxygen chamber, then were removed without further treatment. Twelve rats were put into the hyperbaric oxygen chamber and treated with air for 60 min (N) group. An eight arm maze was used to evaluate cognitive and memory abilities of these mice. Serum myelin basic protein (MBP) levels were evaluated using ELISA, and magnetic resonance imaging was used to observe brain demyelination and morbidity associated with delayed encephalopathy. A sample of the hippocampus from each group was examined by light microscopy. Cognitive and memory functions decreased in the control group M. Three days after CO poisoning, the serum MBP level of each group increased significantly. On Day 10 after CO poisoning, the MBP levels in groups C and D decreased significantly, but returned to normal on Day 18. MBP levels in the M and H groups were elevated at all time points. Brain MRIs showed significant differences among C, D, H and control M groups. Hematoxylin & eosin staining of the hippocampus showed greater damage in the control M and H groups. Early dexamethasone treatment may be useful for preventing delayed encephalopathy after CO poisoning and may reduce serum MBP levels.

No abstract

Tungsten oxide (WO3) and tin oxide (SnO2) nanostructures are hydrothermally synthesized in this research. Fabrication process is simple and inexpensive. The nanomaterials are analyzed and proved that they are with high purity and high crystallinity through different techniques. By combining these two nanomaterials, the SnO2/WO3 nanocomposite is made into an ethanol gas sensor. Not only large surface area but also a heterojunction between SnO2 and WO3 enhance the sensing ability of the sensor. It has high sensing response ratio of 262.61% to 100 ppm ethanol gas at 120 °C. Fast response and recovery times are also worth noting. The fabricated gas sensor can help detecting ethanol concentration in different fields.