0.05).Conclusions The local cell-mediated immunity of PTC is in the status of obviously suppressed.But the local impaired immune response against carcinoma is not associated with lymph node metastasis of PTC.

Objective To describe the characteristics of organizational culture,to identify the level of quality of work life,and to explore the relationship between each dimension of organizational culture and quality of work life among nurses in tertiary hospitals in Yunnan Province,China.Methods The subjects were 416 nurses from six tertiary hospitals in Yunnan Province.Research instruments were the Organizational Culture Profile (OCP) and the Quality of Work Life Scale (QWLS).Results The results of this study showed that four dimensions of organizational culture including competitiveness (3.56 ± 0.49);performance orientation (4.08 ± 0.22);stability (3.68 ± 0.43) and social responsibility (3.95 ± 0.37) were prominent.The other 3 dimensions,namely supportiveness (3.19 ± 0.79);innovation (3.21 ±.0.62) and emphasis on rewards were perceived (2.42 ± 0.79) as less prominent.The overall mean score of quality of work life was at a moderate level (57.46 ± 15.17).Conclusion There are positive significant correlation between each dimension of organizational culture and quality of work life (P＜ 0.01).Improvement of organizational culture can enhance quality of work life among nurses,and then guarantee the nursing quality.

Objective To develop a novel method for treating complete heart block by autotransplantation of simus node node cells to right ventricular anterior wall.Methods Twenty healthy mongrel dogs were involved in the present study.The dogs were randomly assigned to transplant group or control group(n=10).The sinus node (SN)was harvested and isolated in vitro after an electronic pacemaker was implanted and complete heart bolck was introduced.The SN cells from dogs of transplant group were injected to autogenic right ventricular wall.Commensurable culture medium was implanted to ghe same position of dogs in control group.Two weeks later,detailed electropohysiological study was performed.For investigating the variation of the rhythm,epinephrine was administrated through femoral vein to dogs of transplant group.Results Most of isolated SN cells from dogs were thin-spindle shape,and cell activity was fine.The SNs by VG stained displayed typical structural feature.2 weeks after cell autotransplantation,higher heart rates were achieved from transplant group than that in control group(P＜0.05).This rhythm was stable in 4 weeks and became faster remarkably after administration of eninephrine(P＜0.05).Conclusion SN cell of dogs tutorgrfted into right ventricular anterior wall can form new pacemaker site in ventrcle and improve ventricular rate of complete heart bolck.This pacemaker site can also be regulated by epinephrine.