Application of Pd-Sn modified Ru-Ir electrode for treating high chlorine ammonia-nitrogen wastewater.

Electro-catalytic technology is a promising approach for wastewater treatment, owing to its easy operation, minimal generation of secondary pollution, small foot-print and rapid start-up. In this work, the chlorine evolution potential of the Pd-Sn modified ruthenium(Ru)-iridium(Ir) electrode was investigated for the electro-catalytic treatment of high chlorine ammonia-nitrogen wastewater. The effect of reaction conditions on the removal of ammonia-nitrogen, kinetics and apparent activation energy of ammonia-nitrogen removal were studied.

[Comparison of pain thresholds of acupoints on the leg in healthy volunteers].

Objective: To detect the pain threshold of acupoints on the leg in healthy volunteers so as to analyze the sensory specificity of different acupoints.

Methods: A total of 66 healthy volunteers (34 male and 30 female) aged from 19 to 64 years were recruited in the present study. Pain thresholds of acupoints on the lower leg were detected by using an Electronic Von Frey Anesthesiometer after constructing an anthropometric diagram about the cutaneous division of the lower leg.

[Effects of acupuncture on the expression of Cx43 in different acupoints of rats].

Objective: To observe the differences of the expression of Cx43 in rats' acupoints and sham-acupoint when needled blocks, and explore the relatively specificity of acupoints.

Method: Twenty Wistar rats were randomly divided into two groups: an acupuncture group and a control group, ten in each group. The rats in the control group were not treated and sacrificed directly to by air embolism; the rats in the acupuncture group were needled at "Neiguan (PC 6)", "Zusanli (ST 36)", "Dazhui (GV 14)" and "Guanyuan (CV 4)", Sham-acupoints were on 1 cm next to each of the above acupoints and "Yongquan (KI 1)" were needled by hand manipulation, retented needles for 30 min, then all the rats were sacrificed by air embolism.

Simvastatin protects osteoblast against H2O2-induced oxidative damage via inhibiting the upregulation of Nox4.

Statins, 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, have been used clinically as a cholesterol-lowering drug to treat hyperlipidemia. In recent years, accumulating evidence indicates the possible beneficial effect of statins on osteoporosis. However, the underlying molecular mechanism remains to be elucidated.