Objective To analyze the effect of cigarette smoking on replantation of amputed digit, investigate the pathologic mechanism of vascular crisis(VC) caused by smoking. Methods 1)The replantation risk factor such as smoking to VC and blood insufficiency of replanted digit was reviewed in 1 685 cases of digit replantation. 2)The complications after digit replantation in short and long terms among patients smoking were compared with those not smoking after operation. The results of management and time of appearance VC was assayed. 3)The possible pathologic mechanism of VC caused by smoking was analyzed. Results 1)A significant correlation between the ratio of VC, blood insufficiency of replanted digit and smoking index(SI, the number of cigarette in a day multiplies the years of smoking) was found. 2)The rate of VC, wound infection and unhealing in short term and the feeling of pain, numbness and cool in the long term in patients smoking after operation (92.6%,55.6%,48.1% and 71.6%) was obviously more than that in non smoking patients(17.8%,9.3%,2.0% and 3.0%,P

Objective To study the relationship between the serum paraoxonase-1(PON1) activity, PON1Q/R192 polymorphism and atherosclerotic thrombotic cerebral infarction(ATCI) in Chinese Han people.Methods In 48 cases with ATCI and 55 normal controls (NC group), serum PON1 activity was assayed by infrared spectrophotometer;the PON1Q/R192 polymorphism was determined by polymerase chain reaction and restriction fragment length polymorphism.Results Serum PON1 acuivity in the ATCI group was significantly lower than that in NC group[(74.41?18.85) U/ml,(113.65?26.64) U/ml, P

Objective To explore the difference of two kinds of proteolytic enzymes (GLU-C and Lys-C trypsin),hemoglobin A1c were measured in mass spectrometry.Methods Based on the IFCC recommended hemoglobin A1c reference measurement method by mass spectrometry,the blood samples were preparied (the number of these blood samples:201201,201202,201203).Hemoglobin in the samples were enzymed respectively by two kinds of proteolytic enzymes (Glu-C and Lys-C),before the mass spectra which be used solid phase extraction method,under the optimal experimental conditions,hemoglobin A1c in the sample were measured by the liquid chromatography tandem mass spectrometry and screened of variant hemoglobin with sequest software.All results by mass spectrometry are required to use the Sequest software to search RAW file in the human IPI Database,retrieve four common hemoglobin variant published results and compare hemoglobin variant sites,using statistical software SPSS13.0 and Excel 2003 on the results in the correlation analysis,compare between groups by the independent sample t test.Results In the detection of hemoglobin A1c,respectively Glu-C and Lys-C blood which the samples were enzymed,results of hemoglobin A1c by Lys-C were (34.70 ± 2.80),(51.76 ± 1.60),(73.39 ± 1.11) mmol/mol,results of hemoglobin A1c by Glu-C were(33.12 ± 1.48),(54.54 ± 2.50),(75.40 ± 3.60) mmol/mol,the difference between groups was not statistically significant,the results of two methods of drawing curve,all R2 ＞ 0.995.Searching the human database with sequest software,four common hemoglobin variant were not be finded.Conclusions In the detection of hemoglobin A1c by the mass spectrometry,the application of the above two kinds of proteolytic enzyme in the blood samples,that can be more consistent results,test results of two methods have a good correlation.

OBJECTIVE: To explore the applications of imaging examination on rib fracture sites in forensic identification. METHODS: Features including the sites, numbers of the processed imaging examination and the first radiological technology at diagnosis in 56 cases of rib fractures from 163 injuries were retrospectively analyzed. RESULTS: The detection rate of the rib fractures within 14 days was 65.6%. The initial detection rate of anterior rib fracture proceeded by X-ray was 76.2%, then 90.5% detected at a second time X-ray, while the detection rate of CT was 66.7% and 80.0%, respectively. The initial detec- tion rate of rib fracture in axillary section proceeded by X-ray was 27.6%, then 58.6% detected at a second time X-ray, while the detection rate of CT was 54.3% and 80.4%, respectively. The initial detection rate of posterior rib fracture proceeded by X-ray was 63.6%, then 81.8% detected at a second time X-ray, while the detection rate of CT was 50.0% and 70.0%, respectively. CONCLUSION It is important to pay attention to the use of combined imaging examinations and the follow-up results. In the cases of suspicious for rib fracture in axillary section, CT examination is suggested in such false X-ray negative cases.
Aged ; Diagnostic Imaging ; Forensic Medicine ; Fractures, Bone/diagnostic imaging* ; Humans ; Image Processing, Computer-Assisted/methods* ; Retrospective Studies ; Rib Fractures/diagnostic imaging* ; Time Factors ; Tomography, X-Ray Computed

Objective To explore application value of blood flow ratio indexes in the diagnosis of Hashimoto's thyroiditis(HT) with different thyroid functions.Methods One hundred and four patients who were diagnosed clinically as HT were enrolled in the study.The patients were classified into three groups according to thyroid functions:the hyperthyroidism group,the hypothyroidism group and the euthyroidism group.Thirty-two volunteers with normal thyroid functions were enrolled as control group.All the cases were examined with ultrasound and five blood flow ratio indexes were calculated automatically.Their differences in the four groups were compared.Results ①Among the five blood flow ratio indexes,three indexes(mean ratio,maxratio and minratio) had significant differences between each two groups(P ＜ 0.001),the other two indexes didn't have any differences among the four groups.②Two receiver operating characteristic (ROC) curves on meanratio were drew:a)HT with hyperthyroidism and HT with euthyroidism;b) HT with euthyroidism and HT with hypothyroidism.The cutoff value as a result of the ROC analysis of HT with hyperthyroidism and HT with euthyroidism was 0.235 with the maxim of specificity and sensitivity.The cutoff value of HT with euthyroidism and HT with hypothyroidism was 0.113 with the maxim of specificity and sensitivity.Both Bland-Altamn scatter diagrams and high intraclass correlation coefficient(ICC) showed that blood flow ratio indexes have high repeatability.Conclusions Blood flow ratio indexes are promising quantitative indexes in reflecting the vascularity of thyroid parenchyma,and they are helpful in the differential diagnosis of HT with different thyroid functions.

Objective To establish the method of the GC fingerprints for Ligusticum chuanxiong essential oil and its quality control.Methods The temperature at both feed inlet and detector was 250℃,the carrier gas was nitrogen,and the flow rate was 2 mL/min.GC of the essential oil in ten batches of L.chuanxiong was analyzed by adopting temprature programmer and the fingerprint peaks were identified by GC-MS.Results To set up the GC fingerprints for L.chuanxiong essential oil,13 peaks were marked out altogether and the GC fingerprints were analyzed by similarity analysis.Conclusion The method is of high degree of presion,reproducibility,and stability.The resolving of each component in the essential oil is good.The established fingerprints could be used as one of the quality control index for L.chuanxiong essential oil.

Objective To study the effects of Chinese herb extracts on cell proliferation and glucose absorption in intestinal epithelial cell line(IEC-6 cells) of rats.Methods The extracts of four Chinese herbs,including Herba Agastaches(HA),Rhizoma Atractylodis(RA), Cortex Phellodendri(CP),and Gypsum Fibrosum(GF),were made.Their suitable concentration on the cell proliferation in IEC-6 cells was determined by MTT method,and glucose absorption and the activity of Na+,K+-ATPase in IEC-6 cells were assayed.A method of real time PCR was applied to the determination of SGLT1 and GLUT2 mRNA expression in the cells.Results Chinese herb extracts treatment altered the cell proliferation in a dose-dependent manner.Moreover,RA volatile oil(50 ?g/mL) and CP alkaloid(10 ?g/mL) treatment increased glucose absorption and the activity of Na+,K+-ATPase genes(P0.05).Conclusion The three extracts treatment,including RA volatile oil,CP aklaloid,and HA volatile oil,could increase glucose absorption and the expression of glucose transport carrier genes,but their regulative mechanism are not totally the same.

The study is to prepare taste masking and enteric-coated clarithromycin granules by melting and fluid bed coating technology. Clarithromycin and matrix materials were melted at a certain temperature, and then made into particles by fluidized bed coating. X-ray powder diffraction and scanning electron microscopy were used to identify the crystal and morphology of drug loading granules. In vitro dissolution method was used for the observation of the drug release behavior. The results showed that the drug particles size range was 0.2 - 0.6 mm; the crystal form of clarithromycin in the granule did not change; enteric-coated granules accumulated release in 0.1 mol L(-1) hydrochloric acid in 2 h was less than 10%, while in pH 6.8 phosphate buffer in 1 h was more than 80%. The taste masking and enteric-coated clarithromycin granules not only have good taste masking effect, but also have a good release behavior. It is expected to have better clinical application.

The use of electronic resources and needs of novel services in readers of our library and their suggestions for library website construction were investigated with questionnaires and suggestions were put forward for improving and deepening the information service in hospital library.

Objective To determine the minimum alveolar concentration (MAC) of sevoflurane in Chinese neonates.Methods Thirty ASA Ⅰ or Ⅱ neonates,aged ≤ 28 days,with normal body weight,scheduled for elective surgery under general anesthesia,were enrolled in the study.Anesthesia was induced with inhalation of 6.00％ sevoflurane in oxygen.The infants were tracheal intubated and mechanically ventilated.The inhaled concentration of sevoflurane was adjusted to achieve the preset end-tidal concentration and maintained at this level for 20 min.Skin incision was then performed.The concentration of sevoflurane was determined by modified Dixon's up-and-down method.The initial end-tidal concentration of sevofluren was 3.00％.Each time the concentration increased/decreased by 0.25 ％ in the next infant according to the infant's response.Successful skin incision was defined as no body movement during skin incision.The MAC,ED95 and 95 ％ confidence interval of sevoflurane were calculated using logistic regression analysis.Results The MAC and ED95 (95 ％ confidence interval) of sevoflurane required for successful skin incision were 2.82％ (2.66％-2.98％) and 3.39％ (2.89％-3.89％),respectively,in neonates.Conclusion The MAC of sevoflurane is 2.82 ％ in Chinese neonates and lower than the present reference values previously described in foreign reports.