The data analysis of food supervision needs to reflect the integration of food safety and possible trend based on the fun-damental test data of stressed foods and their products. With the assessment and analysis on potential resources of hazard elements, the integrate management support of food safety could be achieved. The data management could be organized and evaluated through plan, collection, treatment and display, which might be assisted to establish data-link with process mining to enforce the prospect of food safety background and trend and to provide the support of food safety management.

Objective:To establish an HPLC method to determine vanillin in 18 dairy products. Methods:The samples were sep-arated on a C18 column (250 mm × 4. 6 mm, 5 μm) with the mobile phase of methanol and water (35∶65) at the flow rate of 1. 0 ml ·min-1 . The detection wavelength was 275 nm. Results:The LOD ( limit of detection) of vanillin was 0. 45 μg·ml-1 . Excellent linearity was obtained within the concentration range of 1.990-99.500 μg·ml-1(r=1.000 0). The average recovery of vanillin in different dairy products with low, medium and high levels varied between 96. 26% and 100. 81% with RSD of 0. 15%-2. 22%. Con-clusion:The method is simple and reproducible, which can be applied in the rapid analysis of vanillin in dairy products.

Objective To assess the effect of polygonum peffoliatum L on the expression of Hypoxia inducible factor-1 (HIF-1α) and vascular endothelia growth factor (VEGF) in hepatic fibrosis rats induced by Dimethylnitrosamine (DMN) . Methods Seventy-two SD rats were randomly divided into six groups, after the model of HF rat induced by DMN and intervened by different concentrations of Polygonum perfoliatum L. Conventional flaking of liver and HE were used to observed histopathological change. Immunohistochemstry was used to detect HIF-1αand VEGF in hepatic tissues of hepatic fibrosis rats. Results The expression of HIF-1α and VEGF in hepatic fibrosis rats of the high dose of Polygonum perfoliatum L from (-) to (3 +) were one , nine, one, zero and one, eight, two, zero, respectively. The expression of HIF-1α and VEGF in hepatic fibrosis rats of the middle dose of Polygonum perfoliatum L from (-) to (3 +)were one , seven, two, zero and one, six, three, zero, respectively. Compared with the model group, the high and middle dose of Polygonum perfoliatum L can reduce the expression of HIF-1 oand VEGF in hepatic fibrosis rats (P ＜ 0. 01). Conclusions Polygonum peffoliatum L has a good curative effect of anti hepatic fibrosis. Its therapeutic mechanism mainly maybe due to adjust the metabolism of extracellular matrix by decreasing HIF-1 αand VEGF expression.

Objective To study the short-term(≤1 year) effect of video-thoracoscope in the treatment of chronic obstructive pulmonary diseases (COPD) accompanied with pneumothorax.Methods 52 COPD cases with pneumothorax from June 2005 to June 2007 were divided into thoracoscope group(n=28) and open heart group(n=24).The patients were followed up at 1,6 and 12 month after surgery,for determination of BODE index,including body mass index,air block,difficulty in respiratory and motor ability.Results No operative death and servere complicatins occurred.Pneumothorax did not relapse.One month after surgery,air block was[(58.62±15.73)% vs (50.12±11.38)%],difficulty in respiratory was[(1.04±0.37)s vs( 1.72±0.45)s] and motor ability was [(387.32±52.07)m vs (318.35±61.52)m] in thoracoscope group and open heart group (P<0.05).At the six month after surgery,body mass index was[(27.19±2.18)kg/m2 vs (20.90±2.35)kg/m2] in thoracoscope group and open heart group(P<0.05);At the 12 month after operation,there was no significant difierence in BODE index between the two groups(P>0.05).Conclusions Video-thoracoscope in treating COPD with pneumothorax can remarkably improve the quality of life early after surgery.

Objective To observe the clinical efficacy of Huoxue Bitong Plaster on lumbar osteoarthritis with blood stasis and cold-dampness blocking collaterals syndrome. Methods Totally 120 patients were randomly divided into treatment group (60 cases) and control group (60 cases). Huoxue Bitong Plaster was applied externally in the treatment group, while Goupigao Plaster was used externally in the control group, once a day, for two weeks. The clinical efficacy was evaluated by observing TCM symptom scores, VAS, Oswestry dability index (ODI), and onset time in both groups before and after treatment. Results The total effective rate was 86.67%(52/60) in treatment group, and 85.00% (51/60) in the control group, with no statistical significance (P>0.05). TCM symptom scores of both groups decreased after treatment (P<0.05). For the effect of relieving back pain and morning stiffness, the treatment group was superior to control group (P<0.05). For the effect of relieving waist heaviness, the control group was better than the treatment group (P<0.05). Besides, VAS and ODI of the treatment group were lower than the control group after treatment (P<0.05). The onset time of lightening back pain, morning stiffness in the treatment group was quicker than control group (P<0.05). For waist heaviness, the onset time in control group was quicker than treatment group (P<0.05). Conclusion Huoxue Bitong Plaster has good efficacy for lumbar osteoarthritis with blood stasis and cold-dampness blocking collaterals syndrome.

One case of periprosthetic infection after artificial joint replacement caused by Coxiella burnetii was reported. The patient was admitted to hospital due to joint pain and sinus formation after artificial knee replacement. Through medical history, physical examination, imaging examination and gene detection, it was confirmed that the infection around the prosthesis was caused by Coxiella burnetii. The patient was treated with two-stage revision surgery combined with sensitive antibiotics. Through literature review, a total of 9 cases of Coxiella burnetii infection after artificial joint replacement were reported, including 6 cases of hip joint and 3 cases of knee joint; 4 cases had clear pathogen exposure history; only one case was found protheses loosening on imaging; 7 cases with positive IgG antibody against Coxiella burnetii; 7 cases were positive for gene detection; 8 cases were negative in etiological examination, and 1 case was not cultured. All patients were treated with doxycycline and hydroxychloroquine. The serological index of 1 case without Q fever symptom turned negative after treatment. 1 case with multiple system organ dysfunction relieved symptoms after treatment, and serological antibody indicators and nuclear medicine results turned negative. All 7 patients were cured after secondary revision surgery. Coxiella burnetii infection after total joint arthroplasty is rare and lacks typical imaging manifestations and clinical features. The diagnosis of Coxiella burnetii infection after total joint arthroplasty mainly depends on gene detection and serological detection. Two-stage revision surgery combined with sufficient and long-term sensitive antibiotics is the main method of treatment.