Objective To develop a special seismic trauma database that could record and analyze the data including injuries, trauma cares and outcomes. Methods (1) The items and content of the database were determined based on the method of evidence-based medicine. (2)The fields, tables, items and options of the seismic trauma database were designed. (3) The database software was developed based on dot net framework platform, with C# as programming language. (4)The database was used to record and manage data of injuries caused by 5.12 earthquake. Results The Seismic Trauma Database Version 1.0 was developed with 728 fields (including 380 inner fields) and normative content and structure. The database software could record 10 aspects of the seismic patients including basic information, injuries, transfer and evacuation, clinical medical care, outcome and discharge. The database software had combination, custom queries and meta-analysis functions. Conclusions This database software can conveniently and normally record and manage the information of the seismic patients, can systemize and analyze the data conveniently and is an excellent data platform for trauma care research and epidemiologic study of seismic injuries.

Objective To document retrospectively long-term quality of life (QOF) and safety of living kidney donors.Methods A total of 219 living-related kidney donors which can be followed up had donated their kidneys between May 2004 and Sap.2011.The renal function,complications and QOF were estimaged.Results Donors included 104 men and 115 women with age from 19 to 66 years.Follow-up period was from 12 to 103 months.No cases died.The mean serum creatinine (Scr) was (84.0± 18.7) μmol/L and creatinine clearance (Ccr) was (1.23 ± 0.37) ml/s over 12 months postoperation.The average Ccr was lower in donors age over 50 years than in younger donors.The kidney function was still abnormal in 3 elder donors at end of the study.Thirty donors had hypertension including 5 newly cases.Microscopic hematuria was found in 4 cases.Hyperlipidemia developed in 3 cases.Mild anemia occurred in 2 cases.Femoral head necrosis occured in 1 case.Majority of 18.26％ donors (40 cases) reported weak healthy feeling (mild impact in 31 cases,moderate impact in 7 cases and severe impact in 2 cases).Thirty-five donors reported mild pain of incision (31 cases occasionally,and 4 cases frequently).Conclusion Living kidney donors have good long-term QOF and safety though there still exist risks of renal impact.Close follow-up is required especially in elderly donors.Compliance of donors needs to be further improved.

BACKGROUND: Based on our previous researches in mechanism studies and clinical applications of human hair keratin (HHK), a new concept "in vivol in situ tissue engineering" has been proposed. Under the guidance of this theory, a scaffold of HHK-collagan sponge (inner layer) combined with poly (2-hydroxyethyl methacrylate) (PHEMA) (outer layer as a drug delivery carrier) would be developed to investigate its feasibility to be as a dermal dressing. OBJECTIVE: To develop a scaffold composed of HHK-collagan sponge (inner layer) combined with PHEMA film containing polydatin(PD)(outer layer as a drug delivery carrier) and to evaluate the therapeutic efficacy of the HHK-collagen sponge-PHEMA/PD complex on burn wound healing. DESIGN, TIME AND SETTING: A randomized controlled animal experiment was performed at the Department of Histology and Embryology, Southern Medical University between March and December 2005. MATERIALS: Burn was induced in 15 male Sprague-Dawiey (SD) rats, Rat models of burn were evenly randomized to 3 groups: experimental, positive control, and negative control. METHODS: ①HHK-collagen sponge was prepared through combination of a HHK meshwork (1mm × 1 mm in size for each grid) made up of three components (determined according to biochemical procedures of various degrees, i.e., light, medial, and severe) at a ratio of 4:3:3 with primary collagen sponge extracted from bovine tendons in a mould. Sponge film (used as inner layer dressing) was made by vacuum freeze-drying. ② PHEMA was prepared by polymerization. Than PD was added to prepare PHEMNPD film (used as outer layer dressing).③ Degree Ⅱ burn wound models were established in SD rats by scalding, Superficial necrotic tissue was removed from burn wounds at postnatal 3 days and leave the denatured dermis remained. The wounds were either covered with human HHK-collagen- PHEMNPD complex in the experimental group, or with glutaraldehyde-treated porcine skin in the positive control group, and sterile absorbent gauze was used in the negative control group. MAIN OUTCOME MEASURES: ① Complete epithelization was taken as the standards, and at postoperative 7, 14, and 21 days, wound healing was respectively calculated. ② At postoperative 1, 2, 4, 6, and 8 weeks, the whole wound surface and its peripheral tissue were dissected for observing granulation tissue growing under an optical microscope and detecting the collagen fiber and elastic fiber in the newly formed tissue by immunohistochemical staining. RESULTS: ① Gross observation results revealed that in the experimental group, the volume of the diffusate under the ideal moisture was less compared with the positive control group; the healing time was slightly shorter in both the experimental group and the positive control group than in the negative control group (P= 0.000); At postoperative 7, 14, and 21 days, the healing rate was higher in the experimental and positive control groups than in the negative control group (P=0.000), in addition, the experimental group exhibited higher healing rate than the positive control group at postoperative 14 days ( P ＜ 0.05). ②Optical microscope results showed that at postoperative 2 weeks, a small quantity of collagen fibers were found in the wound granulation tissue in all 3 groups, in particular in the experimental group. Immunohistochemical staining results regarding collagen protein and elastin revealed that at postoperative 2 weeks, both the fine strip-like type Ⅰ collagen fibers and a few silk-like elastic fibers were stained yellowish-brown in the dermal matrix in the experimental group, which were weakly positive in the positive control group, while there was no elastin detectable in the negative control group; at postoperative 8 weeks, burn wounds in all the 3 groups werefully recovered. Remodeling of collagen fibers was more obvious in the experimental and positive control groups than in thenegative control group, while the tendency to scar formation with derangement of epithelial cells and collagen fibers in dermis was more prominent in the negative control group than in the remaining two groups.CONCLUSION: HHK-collagen sponge-PHEMA/PD complex may be a new burn dressing via in vivo construction of tissueengineered epidermis, in which PHEMA may be a feasible drug-delivery carrier.

Objective To analyze the influence of donating kidney of marginal donors on the early prognosis of living-related kidney transplant recipients.Methods Sixty-six cases of living-re-lated kidney transplant patients between February 2004 and September 2007 were divided into the marginal donors group(28 cases)and non-marginal donors group(38 cases).Serum creatinine before and after surgery,creatinine clearance after surgery and perioperation complications were compared respectivelv between the 2 groups.Results The serum creatinine levels in the marginal donors group and non-marginal donors group were 154,131,127μmol/L and 132,117,118 ttmol/L on 7th day,1st month and 3rd month after transplantation respectively,and there were no significant differences between the 2 groups(P＞0.05).The serum creatinine level in parent-child donating kidney of the 2 groups Was 160,131,126μmol/L and 132,129,126μtmol/L on 7th day,1st month and 3rd month after transplantation respectively,and there were no significant differences too(P＞0.05).There was no difference in the rate of perioperation complications and creatinine clearance after kidney transplantation between the 2 groups.Conclusions The early prognosis of marginal donors'recipients is ideal.The marginal donors could be selected as the living-related kidney transplant donors,especially between parent and child,as long as they are evaluated according to stricter criteria.But the long-term prognosis of the recipients should be further observed.

Objective To investigate the characteristics of post-transplantation diabetes mellitus and analyze its risk factors. Methods Extensive survey was carried out to understand the characteristics of post-transplantation diabetes mellitus in patients who received kidney grafting from February 1984 to December 2006. Results Three hundred forty-four post-transplantatian diabetes mellitus patients from 1872 ones after kidney grafting were found from February 1984 to December 2006. The prevalence of new onset post-transplant diabetes mellitus and impaired fasting glucose in kidney allograft recipients were 18. 4% and 12. 7% respectively, being significantly higher than that in general population and other inpatients. The options of immunosuppressants were significantly associated with the prevalence of post-transplantation diabetes mellitus. By multivariate logistic regression analysis, the baseline characteristics of the post transplantation diabetes mellitus patients were significantly associated with increased age(OR: 1. 309, P = 0. 049), elevated level of the triglyceride (OR: 1. 311, P = 0. 005), treatment with taerolimus (FK506) (OR: 1. 522, P = 0. 008), and large dose of intravenous pulsed prednisolane(OR: 1. 239, P = 0. 011), as compared with patients without post-transplantation diabetes mellitus. Besides, the number of patients with at least one acute rejection episode was significantly greater in the post-transplantation diabetic patients. Mycophenolate mofetil (OR: 0. 716, P = 0. 028) and diltiazem (OR: 0. 737, P =0. 015) were associated with lower risk of post-transplantation diabetes mellitus. Conclusions High prevalence of abnormal glucose metabolism in renal allograft recipients during hospitalization was observed. Many risk factors contributed to the development of post transplantation diabetes mellitus.

Objective To analyze the characteristics of extra-pulmonary tuberculosis in renal transplant recipients,and discuss its diagnosis and management. Methods From Jan.1991 to Apr.2007,37 cases of post-operational tuberculosis were identified out of the 2333 renal transplantations done in our center.Among them there were 19 cases with extra-pulmonary foci(51%),which involved allograft kidney in 5 cases,meninges in 4 cases,pleura in 4 cases,lymph node in 3 cases,soft issue in 2 cases,larynx,liver,vertebra and intestine in 1 case each.In 3 cases,there were 2 extrapulmonary sites involved at the same time.Most of the cases happened within one year post-transplant (53%).The most common clinical manifestation was fever. Results After anti-tuberculosis therapy,14 cases were cured and 5 were irresponsible and died.Eight cases (42%) experienced acute rejection and 4 cases(21%)had abnormal liver function during the treatment. Conclusions Extra-pulmonary tuberculosis had a high incidence and high mortality in post-renal-transplant population.Therefore,attention should be given to its differential diagnosis in clinical practice.Balancing anti-tuberculosis and anti-rejection therapy is important for this specific population.

Objectives To investigate the influence of cytomegalovirus infection after kidney transplantation on the recipients and the associated risk factors of cytomegalovirus infection .Methods Data of 892 kidney transplantation recipients from January 2000 to December 2004 in our department were analyzed retrospectively . All the recipients were divided into case group (with cytomegalovirus infection) and control group (without cytomegalovirus infection) . Log-Rank test was used to compare the 1-, 3-, 5-year survival of patients and grafts between two groups . The incidence of complications, the difference of regiment of immunosuppressant and anti-CMV drugs were compared as well . The independent risk factors of cytomegalovirus infection were assessed by Logistic regression analysis . Results One-, 3-, 5-year survival rates of patients in case group were 81 .3%, 72 .8% and 54 .8% respectively, while the patients in control group were 96 .4%,91 .4% and 79 .9% respectively, the prior was significantly lower than the latter (Log-Rank value=49 .62, P＜0 .01) . One-, 3-, 5-year survival rates of grafts in case group were 71 .0%, 66 .2% and 46 .1%, while the grafts in control group were 91 .5%, 86 .6% and 74 .5% respectively, the prior was significantly lower than the latter as well (Log-Rank value=44 .87, P＜0 .01) . The incidence of acute rejection in case group was 24 .9%, while it was 13 .9% in control group, with significant difference between two groups (x2=14 .49, P＜0 .01 ) . Logistic regression showed that acute rejection,mycophenolate mofetil dose more than 2 g, and usage of ATG/ALG or OKT3 were the independent risk factors of cytomegalovirus infection (OR=1 .464, 3 .097 and 2 .837, P＜0 .05 ) . Ganciclovir was the protective factor of cytomegalovirus infection (OR =0 .234, P ＜0 .01) . Conclusions Cytomegalovirus infection decreases the long-term survival of recipients and grafts in kidney transplantation . Acute rejection, high dose of mycophenolate mofetil, and ATG/ALG or OKT3 are the independent risk factors of cytomegalovirus infection . Prophylactic usage of ganciclovir after kidney transplantation can effectively reduce cytomegalovirus infection .

Objective To investigate the expression level of human epididymis protein 4 ( HE4 ) in se-rous ovarian cancer tissues and its relationship with clinicopathological features .Methods The expression level of HE4 in 140 serous ovarian cancer patients and its relationship with clinicopathological features were detected by immunohistochemistry.To compare the correlation between HE4 and CA125, the histological expressionOf CA125 was also detected by IHC .Results the positive expression rate of HE 4 and CA125 in moderately and poorly differentiated serous ovarian cancer tissues were respectively 89.76%and 81.89%;the positive expression rate in well differentiated group were respectively 46.61% and 15.38%,in the advanced stages were 92.44%and 83.19%,in the early stages were 47.62%and 33.33%.the positive expression rate of lymphatic metastasis were 95.65%and 84.35%,without lymphatic metastasis were 40.00%and 36.00%,the positive expression rate of peritoneal implantation were 90.00% and 87.27%, without peritoneal implantation were 70.00% and 33.33%;the positive expression rate of ascites were 89.76% and 79.53%,without ascites were 46.15% and 38.46%.Besides,the positive expression rates of HE4 and CA125 were 86%and 76%,the differences were sta-tistically significant.Both the positive expression in ovarian cancer are correlated positively (P<0.05).The ex-pression of HE4 and CA125 has nothing with the occurrence of pausimenia and the number of parity in patients with ovarian cancer(P>0.05).Conclusion The expression of HE4 in serous ovarian cancer is related with FI-GO stages,the degree of tumor differentiation ,lymph node metastasis and ascites .

Objeetive To analyze traffic accidents involving pedestrians in Chongqing from 2000 to 2006 so as to understand injury characteristics of the pedestrians. MethodsThe data of pedestrian road traffic crashes and injuries in three districts including one district in downtown,one in suburb and one in county of Chongqing from 2000 to 2006 were collected from road traffic crash and road traffic injury database to analyze severity of crashes,casualties,action and location of pedestrians in crashes. Results The road crashes led to 7 934 pedestrian injuries (24.74％) and 867 pedestrian deaths (49.46％).Intensity of the pedestrian road crashes in rural areas was higher than that in downtowns and suburbs.Of all pedestrian casualties,57.91％ were due to illegally crossing the driveway,and 15.43％ of the casualties were on the crosswalk.Most of the casualties occurred on the main roads,the third class highways and second main roads in Chongqing.But serious crashes occurred on the first and second class highways and substandard highways,which led to average 3.17,4.13 and 5.42 deaths,respectively.Pedestrians accounting for 52.46％ of the total severe injuries were more than the proportion among the minor to moderate injuries.Head injuries were the most common for the pedestrians and chest injuries were also usual among the severe injuries. Conclusions The intensity of pedestrian road crashes is higher than that of other crashes,especially in rural areas.It should be noticed that the main injuries of the pedestrians are head injuries,which is mainly resulted from illegally crossing driveway.It is worth noticing that a rather high proportion of pedestrians are impaired on the crosswalks,indicating that we should pay more attention to protect right of the pedestrians on the crosswalks during transportation law enforcement and safety education in the future.

Objective To explore pre-attentive information processing in undergraduate students with major depressive disorder(MDD) indexed by auditory mismatch negativity (MMN) and provide scientific theory basis for the diagnosis of MDD.Methods In the deviant-standard reverse oddball paradigm with deviant stimulus presentation probability of 20％,duration auditory MMN was obtained in 17 MDD university students and 17 gender-/age-matched healthy undergraduate students.All data were analyzed by statistics means of repeated measurement of F test.Results The amplitudes of 150 ms MMN over the frontal-central area were smaller in MDD undergraduate students((-0.34± 1.24) μV) than those in healthy undergraduate students ((-1.07± 1.55) μV,F=24.318,P=0.000).The 50 ms MMN did not differ between MDD students ((-1.96± 1.14) μV) and healthy undergraduate students ((-1.23 ± 1.97) μV,F =0.089,P =0.767).Conclusion Pre-attentive auditory information processing is impaired in MDD undergraduate students.