Objective To observe effect of Dermlin and silver zinc emulsion in treatment of phase Ⅱ and Ⅲ pressure ulcer, and explore a new method which is easy to operate, safe and easily accepted by elderly patients. Methods 38 elderly patients with pressure ulcer from July, 2007 to June,2010 were selected and divided into the treatment group and the control group with 19 patients in each group. The treatment group adopted Dermlin and silver zinc emulsion, while the control group used Comfeel dressing. The treatment effect and cure time of the two groups were compared. Results The treatment effect of the treatment group was better than that of the control group, time used to achieve significant effect was also less in the treatment group. Conclusions Application of Dermlin and silver zinc emulsion in treatment of phase Ⅱ and Ⅲ pressure ulcer can achieve better effect than comfeel dressing, besides it is easy to operate and worthy of clinical practice.

Objective To develop the contents of Family Type Integration of Medical Care and Health Services in Hangzhou based on the Guiding Opinion on Promoting Integration of Medical Care and Pension issued by the State Council,Promotion Measures of Integration of Medical Care and Health Services in Hangzhou issued by the municipal government,and needs of health services for the elderly living in community.Methods The draft was formulated based on literature review,semi-structured interviews and expert meeting.Then,Delphi technique was used to identify the indicators through two rounds of expert consultation among 16 experts.Results The experts' authority coefficient was 0.790,the coefficient of determination was 0.906,and the familiar coefficient was 0.675.The contents of the Family Type Integration of Medical Care and Health Services in Hangzhou consisted of 8 firstlevel indicators,47 second-level indicators.The coordination coefficients of indicators were 0.341,0.222,and 0.426.Coordination of experts opinion had statistical significance (P＜0.01).Conclusion The contents of the Family Type Integration of Medical Care and Health Services in Hangzhou is reliable and scientific,which can be used as a basis for the formulation of items of the family type integration of medical care and health services in Hangzhou.

BACKGROUND: Undergraduates from military medical universities face many psychological stresses. Poor coping style might affect the status of mental health. Mental health might also be associated with social support and personality.OBJECTIVE: To investigate the correlation of social support and coping style with mental health among undergraduates from military medical universities.DESIGN: Cluster sampling and questionnaire investigation.SETTING: The Center of Basic Medicine Eexperiment, School of Basic Medicine and School of Preventive Medicine of Fourth Military Medical University of Chinese PLA, and Xi'an Hospital of Sports Trauma.PARTICIPANTS: Totally 352 freshmen of a military medical university were chosen by cluster sampling in October 2004 as the subjects.METHODS: Investigationwas performed on subjects with Symptom checklist-90 (SCL-90), social support rating scale (SSRS), coping style questionnaire (CSQ) and revised Eysenck's personality questionnaires short scale for Chinese (EPQ-RSC).SCL-90 consists of 90 items, including 10 factors. SSRS consists of subjective support, objective support and the utilization of support 3 factors as well as total score of social support. CSQ consists of problem solving, self-reproach, asking for help, keeping out of the way, fancy, rationalization 6 factors. EPQ-RSC mainly consisted of extraversion-introversion (E), neuroticism (N), psychoticism/tough mindedness (P) and lie/social diserability (L) 4 dimensions. Data were performed statistical management with t test and correlation analysis.MAIN OUTCOME MEASURES: ①Comparison of the scores of various factors of social support, coping style and personality among undergraduates with different mental health levels from military medical universities. ② Correlation of different social supports, copying styles and personalities with SCL-90. ③ Comparison of scores of mental health,coping style and personality of military medical undergraduates under different social supports.RESULTS: Totally 352 questionnaires were handed out and all of them were retrieved and eligible, with responding rate of 100%. ① The total scores of SRSS were taken as the grouping index, and 25% of the undergraduates who had the highest scores and the lowest scores were respectively chosen as severe symptom group and mild symptom group.Total scores of social support, subjective support and the utilization of support were higher in the mild symptom group than in the severe symptom group, but no difference in the objective support existed between two groups; Compared with mild symptom group, self-reproach, fancy, keeping out of the way and other immature coping styles were more significantly used, but asking for help was less, the scores of E were lower, but those of N were higher in the severe symptom group. ② Various factors of mental health were significantly negatively correlated with the total scores of support, the utilization of support, asking for help, E and L (r=-0.131 to -0.306 ,P ＜ 0.05 or P ＜ 0.01 ), but positively correlated with self-reproach,fancy, keeping out of the way, rationalization and N (r=0.141-0.450, P＜ 0.05 or P ＜ 0.01). ③ Total scores of support was used as the grouping index, 27% of the subjects who had the highest scores and lowest scores were chosen respectively as high support group and low support group.Mental health level was superior in the high support group to in the low support group; Most of the undergraduates of high support group preferred active coping styles, and those of low support group preferred passive coping styles; Scores of E of high support group were higher than those of low support group, and the scores of N and P were lower than those of low support group (P ＜ 0.05).CONCLUSION: Social support, coping style and EPQ-RSC interact and co-influence mental health.

Objective To study the differences in the inclination of lower incisors among the female patients with beautiful profiles in different vertical skeletal types so as to provide the clinical treatment design for a certain guiding. Methods 137 cephalometric films of female patients with beautiful profiles were selected and divided into three groups based on the vertical facial types(∠SNMP):small degree(n = 31),average degree(n = 89) and larger degree groups(n=17). The angles of∠L1/MP and∠L1/A-Pog were measured and treated with covari-ance analysis for detecting the differences between the groups. Results The index of L1-MP(°)was the smallest in the larger degree group,the largest in the small degree group and average in the average group,with significant differences between the three groups(F = 17.38,P < 0.001). There was no significant differences in ∠L1/A-Pog (°)(F=2.61,P>0.05). Conclusion Lower incisors have compensatory inclined lingually in the group of higher mandible angle,but labially in the group of lower mandible angle.

OBJECTIVETo observe the impacts of doxapram on anesthetic efficacy and respiratory and circulatory functions during anesthesia with remifentanil given by target-controlled infusion (TCI) combined with propofol in painless artificial abortion.

METHODSA total of 120 ASA I women requiring voluntarily painless artificial abortion were randomized into two equal groups. One group was given remifentanil by TCI at 2 ng/ml and propofol 1mg/kg (group I), and the other given remifentanil by TCI, propofol, and doxapram 0.6 mg/kg (group II). The anesthetic efficacy and respiratory and circulatory suppression during anesthesia were observed.

RESULTSBoth of the two groups showed satisfactory anesthetic efficacy with comparable the BIS values (P>0.05). No significant difference was noted in the induction time and awaking time between the two groups (P>0.05), but group I had more serious respiratory and circulatory depression than group II (P<0.05).

CONCLUSIONDoxapram may attenuate respiratory and circulatory depression during anesthesia with remifentanil given by TCI combined with propofol in painless artificial abortion, and provide comparable anesthetic efficacy.

Abortion, Induced ; Adolescent ; Adult ; Anesthetics, Combined ; Doxapram ; administration & dosage ; Female ; Humans ; Infusions, Intravenous ; Middle Aged ; Piperidines ; administration & dosage ; Propofol ; administration & dosage ; Treatment Outcome

Objective To compare the analytical result of different kinds of film dose analysis software for the same gamma knife,analyze the reasons of difference caused,and explore the measurements and means for quality control and quality assurance during testing gamma knife and analyzing its result.Methods To test the Moon Deity gamma knife with Kodak EDR2 film and γ-Star gamma knife with GAFCHROMIC(R) EBT film,respectively.All the validation films are scanned to proper imagine format for dose analysis software by EPSON PERFECTION V750 PRO scanner.Then imagines of Moon Deity gamma knife are analyzed with Robot Knife Adjuvant 1.09 and Fas-09 1.0,and imagines of γ-Star gamma knife with Fas-09 and MATLAB 7.0.Results There is no significant difference in the maximum deviation of radiation field size ( Full Width at Half Maximum,FWHM) and its nominal value between Robot Knife Adjuvant and Fas-09 for Moon Deity gamma knife (t = -2.133,P ＞0.05).The analysis on the radiation field' s penumbra region width of collimators which have different sizes indicated that the differences are significant (t = - 8.154,P ＜ 0.05 ).There is no significant difference in the maximum deviation of FWHM and its nominal value between Fas-09 and MATLAB for γ-Star gamma knife ( t = - 1.384,P ＞0.05 ).However,following national standards,analysis of φ4 mm width of collimators can obtain different results according to the two kinds software,and the result of Fas-09 is not qualified while MATLAB is qualified.The analysis on the radiation field' s penumbra region width of collimators which have different sizes indicates that the differences are significant ( t = 3.074,P ＜ 0.05 ).The imagines are processed with Fas-09.The analysis of imagine in the pre-and the post-processing indicates that there is no significant difference in the maximum deviation of FWHM and its nominal value ( t = 0.647,P ＞ 0.05 ),and the analytical result of the radiation field' s penumbra region width indicates that there is no significant difference as well ( t = -0.627,P ＞ 0.05 ).Conclusion The study shows that different kinds of film dose analysis software may have some differences in analysis of the same gamma knife validation film,and the results may lead to the different decisions in accordance with national standard.

Objective To construct the KU80 inhibition cell model by RNAi in U2OS cell and to explore the relationship between the Ku80,telomeres and radiosensitivity in telomerase-negative tumor cells.Methods U2OS cells were transfected with the recombinant plasmids of pshRNA-K80 by the lipofectamine,and the stable transfected cell clones were selected by G418.After the selection,the cells were collected and analyzed by the flow cytometry.RT-PCR and Western blot were used to measure the expression of Ku80 and Real-time PCR was used to detect the length of telomeres.The radiosensitivity of U2OS was determined by clone formation array.Results The transfection efficiency of the positive cell clones detected by the flow cytometry was (83.23 ± 7.63) ％.The inhibition rate of the Ku80 gene transcription in the cell group with recombinant plasmid was(68.09 ± 1.16)％ and the inhibition rate of the Ku80 protein expression in the same group was (11.03 ± 2.45) ％.The results of Real-time PCR showed that the telomere length of the cell group with recombinant plasmid (1.07 ± 0.07) was significantly shorter than that of the control group (4.42 ± 1.30,F =38.58,P ＜ 0.05) and that of the empty plasmid group (4.11 ±0.84,F =38.58,P ＜ 0.05).Compared to the control group,the telomere length of the empty plasmid group did not changed(4.42 ±0.84 vs.4.11 ±0.84).U2OS cells with Ku80 expression suppressed had lower SF2 than that of the control cells (F =1089.61,P ＜0.05),and resulted in the SER of 1.47.Conclusions The Ku80 inhibition cell model in telomerase-negative U2OS cell line is successfully established which has the shorter telomere length,and is more sensitive to radiation.Telomere shortening caused by pshRNA-of Ku80 is likely to be one of the mechanisms of radiosensitization in this kind of cell model.

ObjectiveTo investigate the CT number linearity of the cone-beam CT (CBCT) images at the different spatial locations in the scanning area.MethodsThe CatphanS04 phantom at the different locations are scanned repeatcdly using the CBCT on the Varian 23EX linear accelerator.The phantom is located the isocenter point,eccentric 3 cm,eccentric 6 cm,and different points on the z-axis successively on the accelerator.The scanned mode is the standard head mode.The reconstructive thickness is 2.5 cm.The different densities inserts of CTP404 module on the different locations are measured via Eclips treatment planning system (TPS) and computed by Matlab 7.0 and the CT linear fitting are then processed.In order to understand better the linear distribution along with the value of CT in the spatial distribution the results are compared with the fan-beam CT.ResultsPhantom studies show that:CBCT has good linearity performance not only under the standard header (body) of the scanning conditions,but also on such locations including the cross-sectional,the sagittal,the coronal plane and the eccentric position ( R2 ＞ 0.953 ).Bowtie filtration device does not change the CT finearity but changes the value of CT.ConclusionsThe linearity of X-ray CBCT on the Varian linear accelerator is favorable.CBCT will be used in the TPS dose calculation via further correction of the CT value.

OBJECTIVETo investigate the correlative factors influencing the stability of orthodontic treatment out of retention.

METHODSPre-treatment, post-treatment and 2 approximately 8 years out of retention study models of 74 cases with malocclusion were assessed by the PAR (Peer Assessment Rating) index.

RESULTS(1) Out of retention, the relapse rate was 13.01% in weighted PAR total scores and the relapse rate was 6.38%, 15.56%, 28.86%, 22.41% in alignment, overjet, overbite and transverse buccal occlusion respectively. (2) The rate of great improvement was decreased from 77.03% after treatment to 64.86% out of retention. The PAR score increased in 53 cases (71.62%), unchanged in 6 cases (8.11%) and reduced in 15 cases (20.27%) out of retention. (3) The weighted total scores in the Begg appliance were higher than that in Edgewise out of retention (P < 0.05). (4) The alignment and PAR total scores out of retention were higher in class II malocclusion than in class I malocclusion (P < 0.05). (5) The weighted PAR total scores post-retention were higher in unilateral extraction than in other groups (P < 0.01).

CONCLUSIONS(1) There was a trend that teeth relapsed to original position out of retention. The relapse rate was greater in alignment, overjet, overbite and transverse buccal occlusion. (2) The stability out of retention was not related to patient's age and sex, but was related to the types of appliance, malocclusion and extraction.

Adolescent ; Adult ; Age Factors ; Child ; Female ; Follow-Up Studies ; Humans ; Male ; Malocclusion ; pathology ; therapy ; Orthodontics, Corrective ; methods ; Recurrence ; Sex Factors ; Time Factors ; Treatment Outcome

Objective To establish the mitochondrial DNA depleted cell line (ρ0 cells) of lung cancer cell A549 and to observe the radiosensitivity difference between ρ0 cells and normal A549 cells (ρ + cells).Methods The ρ0 cells were depleted of mitochondrial DNA by culturing chronically in the presence of low concentration of ethidium bromide (EB),and then the cell model was confined.Radiosensitivity of both ρ0 cells and ρ + cells was detected using the cologenic formation assay.After 6 MV X-ray irradiation in vitro,cell cycle distribution and reactive oxygen species (ROS) level were analyzed by flow cytometry and fluorescence microplate reader,respectively.Results A ρ0 cell line was successfully established and had a lower radiosensitivity than ρ + cells (t =12.57,P ＜ 0.01).After irradiation with a dose of 8 Gy,compared to ρ+ cells,ρ0 cells showed prolonged G2 arrest with less cells in G2 (t =6.82,P ＜ 0.01) and had lower increase of ROS level (t =14.51,P ＜ 0.01).Conclusions ρ0 cells have a lower radiosensitivity than ρ + cells,in which the reduction of ROS production and the prolongation of G2 arrest post-irradiation may be involved.