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Objective@#To investigate the serum levels of interleukin (IL)-6 and -8 in patients with chronic periodontal disease and acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and the possible relationship between IL-6 and IL-8 with two diseases.@*Methods@#A total of 40 cases of healthy subjects (control group 1) from graduate school of Anhui Medical University, and 120 cases (40 cases in each of the 3 groups) of eligible patients were collected, of which 40 were patients with chronic periodontal disease and AECOPD (experimental group) from Department of Respiratory Medicine, The First Affiliated Hospital of Anhui Medical University and Anhui NO.2 Provincial People's Hospital, 40 were patients with chronic periodontal disease (control group 2) from Department of Stomatology, The First Affiliated Hospital of Anhui Medical University, 40 were patients with AECOPD (control group 3) from Department of Respiratory Medicine, The First Affiliated Hospital of Anhui Medical University. The clinical indicators of all subjects were collected, including tooth mobility degree, probing depth (PD), bleeding index (BI), attachment level (AL), vital capacity max (VC Max), forced expiratory volume in first second (FEV1) and forced expiratory volume in first second to forced vital capacity (FEV1/FVC) ratio. Enzyme linked immunosorbent assay (ELISA) was used to detect the serum levels of IL-6 and IL-8 in the subjects of four groups.@*Results@#The attachment levels had no significant differences between experimental group and control group 2 (P>0.05). The pulmonary function indices of experimental group including VC MAX% pre[(56.1±11.1)%], FEV1 %pre [(44.8±12.2)%], FEV1/FVC(%) [(56.8±11.4)%] were significantly different from those in control group 3 [(66.3±10.1)%, (53.0±10.4)%, (66.5±8.2)%, respectively]. The IL-6 levels of experimental group, control groups 1, 2 and 3 were (14.4±3.9), (2.1±1.1), (4.8±1.9) and (8.6±1.4) ng/L, respectively. And the IL-8 levels were (35.3±33.3), (4.8±1.7), (9.7±3.3) and (15.6±9.6) ng/L. In experimental group the IL-6 and IL-8 levels were significantly higher than those in control groups 1, 2, and 3 (P<0.01). In control group 2 and 3 the IL-6 and IL-8 levels were significantly higher than that in control group 1 (P< 0.01).@*Conclusions@#The IL-6 and IL-8 levels of experimental group were significantly increased. IL-6 and IL-8 may be associated with the development of periodontal disease and AECOPD closely.
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Purpose To evaluate the effectiveness of exfoliative cytology in chronic oral ulcers diagnosis.Methods To examined 107 cases of chronic oral ulcers which were difficult to determine the nature of the ulcer in exfoliaticve cytology,and compared postoperative histopathological results or clinical results,and made the final diagnosis with cytology.Results The qualitative diagnostic accuracy of cytology was 95.3％.The sensitivity and specificity for benign and malignant lesions was 94.6％ and 100％,respectively.False positive rate was 0,and false negative rate was 5.4％,and the coincidence rate of cytological examination with the final pathology was 67.0％.Conclusion Exfoliative cytology has important reference value in chronic oral ulcer diagnosis.It is characterized by simple,rapid procedure and less trauma.Doctors can develop next treatment plan based on the results of exfoliative cytology.
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Objective To evaluate the root canal deviations in vitro teeth curved root with TF and Protaper instru-ments by cone beam computer tomography( CBCT) . Methods 40 teeth in vitro in the standard collection were ran-domly assigned to two groups, prepared with the crown-down method, the TF group ready to 0. 06/#25; the Pro-taper group ready to F2 . CBCT scans were taken to measure the mesial and distal thicknesses of the tube wall in vitro teeth before and after preparation. The root canal deviation and the rate of shaft center were measured with ref-erence to the formula proposed by Gambill. Results The TF group need less time in preparation and has more effi-ciency(P<0. 05) than the Protaper group; both TF and Protaper devices appeared deformation after 5 root canal preparations in average, no instruments broken. Comparing the offset of the internal and external wall of root canal in 3, 5, 7 mm from the apex, the root canal deviation prepared by the TF group was less than the Protaper group, and its rate of axis center was greater than the Protaper group, closer to 1. Conclusion TF can maintain original root canal morphology in preparing curved root canal, also has higher efficiency;under the noninvasive condition, the root canal forming ability of preparation instruments can be evaluated by CBCT.
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Objective To measure the changes of total factor productivity (TFP)of Zhejiang medical facilities for decision makers to promote their service efficiency.Methods Collecting the panel data of 2005-2010(four input indexes and five output indexes)from medical facilities in Zhejiang province and measuring with Malmquist index of DEA programs of DEAP2.1.Results The average annual TFP growth rate in the period is 2.0％.A further decomposition found that the average annual growth rate of technology progress is 1.8 ％,while that of technical efficiency and pure technical efficiency is only 0.2％respectively.In the meantime,no scale efficiency growth was found.Conclusion The average annual growth of total factor productivity of Zhejiang medical institutions is substantially low in the period,with technology recession found as well.To maximize productivity of the medical sector,the allocation and internal management should be strengthened to stimulate technical efficiency and scale efficiency while encouraging technology innovation.