A rapid method for authenticity detection of grapeseed oil was proposed based on Ion Mobility Spectrometry ( IMS) . After optimization, the inlet temperature was set at 170 ℃, drift tube temperature was set at 60 ℃. In this method, the oil sample was diluted in hexane (50-fold, V/V) and then directly analyzed in IMS. The detection time was 20 s. To establish an adulteration detection model, recursive Support Vector Machine ( R-SVM) was applied to classifying pure and adulterated grape seed oils. The result of 10-fold cross validation showed that the accuracy of discrimination was up to 91 . 2%. The results in study indicate that IMS method is a new, fast and convenient technique for the adulteration detection of edible oil.

Objective To explore the survival factors for oral squamous cell carcinoma (OSCC). Methods A total of 492 patients with OSCC were recruited from the First Affiliated Hospital of Fujian Medical University from June 2003 to December 2014. Then, 456 cases were included in the present study according to inclusion and exclusion criteria. Clinical and follow-up data were collected to evaluate survival factors of OSCC. Survival rates were calculated using the Kaplan-Meier method and compared using the Log-rank test. The Cox proportional hazards regression model was used to estimate the hazard ratio (HR) and 95% confidence intervals (CI) of survival factors. We also stratified by TNM Classification of Malignant Tumours stage and BMI to assess the association between treatments and OSCC outcomes. Results The age of the recruited patients was (57.89±11.61) years, and the proportions in TNM stagesⅠ,Ⅱ,Ⅲ, andⅣwere 14.0%(64), 23.7%(108), 16.1%(73) and 42.5%(194), respectively. The multivariate Cox regression indicated that the HR (95% CI) of the increase to mortality risk associated with stage T2-T3, T4(T1 as reference), stage N2-N3 (N0 as reference), poor-moderate differentiation, BMI<18.5 kg/m2 (compared with BMI 18.5-23.9 kg/m2), alcohol consumption≥20 g/d (compared with no alcohol) before treatment were 2.69 (1.21-5.95), 3.40 (1.54-7.53), 2.65 (1.17-6.00), 2.56 (1.39-4.71), 2.00 (1.15-3.50), 2.09 (1.11-3.93), and 1.68 (1.03-2.73), respectively. The stratification analysis demonstrated that, compared with surgery alone, surgery combined with radiotherapy reduced the mortality risk of stage Ⅲ-Ⅳ, HR (95% CI) 0.33 (0.12-0.93). Surgery combined with chemoradiotherapy reduced the mortality risk of OSCC with normal BMI, HR(95%CI) were 0.39 (0.17-0.87). Conclusions Clinical stage and histological grade are survival factors for patients with OSCC.

Objective To explore the survival factors for oral squamous cell carcinoma (OSCC). Methods A total of 492 patients with OSCC were recruited from the First Affiliated Hospital of Fujian Medical University from June 2003 to December 2014. Then, 456 cases were included in the present study according to inclusion and exclusion criteria. Clinical and follow-up data were collected to evaluate survival factors of OSCC. Survival rates were calculated using the Kaplan-Meier method and compared using the Log-rank test. The Cox proportional hazards regression model was used to estimate the hazard ratio (HR) and 95% confidence intervals (CI) of survival factors. We also stratified by TNM Classification of Malignant Tumours stage and BMI to assess the association between treatments and OSCC outcomes. Results The age of the recruited patients was (57.89±11.61) years, and the proportions in TNM stagesⅠ,Ⅱ,Ⅲ, andⅣwere 14.0%(64), 23.7%(108), 16.1%(73) and 42.5%(194), respectively. The multivariate Cox regression indicated that the HR (95% CI) of the increase to mortality risk associated with stage T2-T3, T4(T1 as reference), stage N2-N3 (N0 as reference), poor-moderate differentiation, BMI<18.5 kg/m2 (compared with BMI 18.5-23.9 kg/m2), alcohol consumption≥20 g/d (compared with no alcohol) before treatment were 2.69 (1.21-5.95), 3.40 (1.54-7.53), 2.65 (1.17-6.00), 2.56 (1.39-4.71), 2.00 (1.15-3.50), 2.09 (1.11-3.93), and 1.68 (1.03-2.73), respectively. The stratification analysis demonstrated that, compared with surgery alone, surgery combined with radiotherapy reduced the mortality risk of stage Ⅲ-Ⅳ, HR (95% CI) 0.33 (0.12-0.93). Surgery combined with chemoradiotherapy reduced the mortality risk of OSCC with normal BMI, HR(95%CI) were 0.39 (0.17-0.87). Conclusions Clinical stage and histological grade are survival factors for patients with OSCC.