Objective To observe the effect of Yupingfeng Powder(YP) on IgE level and T lymphocyte subpopulations of CD4+ and CD8+ in cough-variant asthma patients at remission stage.Methods Seventy-four cough-variant asthma(CVA) patients at remission stage were randomized into two groups.The treatment group(N=36) received oral use of YP and the control group(N=38) received oral use of placebo,the treatment lasting 8 weeks.The changes of serum IgE level and T lymphocyte subpopulations of CD4+ and CD8+ were observed before and after treatment.Results After treatment,serum IgE level and CD4+ percentage were decreased,CD8+ percentage increased,and CD4+/CD8+ decreased in the treatment group(P0.05),but were significant between the control group and the treatment group after treatment(P

0.05). Conclusion The quality of life of SARS patients was not high one month after discharged. The patients needed the further rehabilitation treatment including restoration of function and appropriate psychological treatment.

This paper discusses the relationship between stimulating pulse width and the threshold of electrically evoked compound action potential (ECAP). Firstly, the rheobase and chronaxy from strength-duration curve of nerve fiber was computed using the shepherd's experiment results. Secondly, based on the relationship between ECAP and the action potential of nerve fiber, a mathematical expression to describe the relationship between stimulating pulse width and ECAP threshold was proposed. Thirdly, the parameters were obtained and the feasibility was proved to the expression with the results of experiment using guinea pigs. Research result showed that with ECAP compared to the action potential of nerve fiber, their threshold function relationship with stimulating pulse width was similar, and rheobase from the former was an order smaller in the magnitude than the latter, but the chronaxy was close to each other. These findings may provide meaningful guidance to clinical ECAP measurement and studying speech processing strategies of cochlear implant.
Action Potentials ; Animals ; Auditory Threshold ; Cochlear Implantation ; Cochlear Implants ; Electricity ; Evoked Potentials ; Guinea Pigs ; Neural Conduction