ABSTRACT
Objective To investigate the multidrug-resistant bacteria infection in pediatrics of our hospital and guide the rational usage of antibiotic,Methods The retrospective survey method was adopted to analyze the multidrug-resistant bacteria infection of 591 patients in paediatrics from 2009 to 2011.Results There were no statistical differences of multidrug resistance bacteria infection rates in the three years (x2 =0.028,P =0.986).Among 591 patients,17 patients were with multidrug-resistant bacteria infection,the positive rate was 2.87％,82.4％ origin of society area,64.7％ was respiratory tract infection,58.8％ resistance bacteria including Klebsiella pneumoniae and Escherichia coli,appear multidrug resistance bacteria infection previous all used antibiotic drugs.Conclusion The multidrug resistance bacteria infection is related to occur in paediatrics abuse and unrationaly use of antibiotics.Its should be strengthened to supervise and manage.
ABSTRACT
Objective To study the changes of the transient outward K+ current (Ito),delayed rectifier K+ current(IkDR) and the inward rectifier K+ current(Ik1) of the rat bone mesenchymal stem cells (MSCs) induced by 5-Azacytidine(5-Aza) during proliferating and differentiating process in vitro. Methods MSCs were cultured according to related articles for two weeks and then some of the cells were induced by 5-Azacytidine.The experiment was divided into uninduced(cultured for 6w) and induced(1,2,3 and 4w) cell groups. Each week had twenty cells random tested by the whole-cell patch clamp technology and the K+ currents were identified by corresponding ionic blockers.Results The detection rate of the same type of K+ current during test weeks had no significant deviation;The three types of K+ current intensity were gradually augmented after being inducing cultured for 1,2,3 and 4 weeks(P