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Objective To investigate the expression of heparanase (HPA) and NF-E2 associated factor (NRF2) in laryngeal squamous cell carcinoma.Methods We collected 81 cases of laryngeal squamous cell carcinoma in our hospital from February 2015 to February 2017 as group A,and then selected 77 cases of polyp of vocal cord pathological specimens as group B.The expression of HPA was detected by immunohistochemistry,and the expression of NRF2 was detected by western blot.Results The positive expression rate of HPA and the expression of NRF in the group A and B were 81.48％,19.48％ and 0.844±0.113,0.202±0.094,the difference was statistically significant (P＜ 0.05).The positive expression rates of HPA in patients with lymph node metastasis and TNM stage Ⅲ to Ⅳ were 93.02％ and 94.87％,which were significantly higher than those without lymph node metastasis and stage Ⅰ to Ⅱ (P＜0.05).The positive expression rates of HPA in patients with low and middle differentiation were 93.75％ and 100.00％,which were significantly higher than those with high differentiation (P＜0.05).The expression of NRF2 in patients with lymph node metastasis and TNM stage Ⅲ to Ⅳ were 0.901± 0.122 and 0.885 ± 0.105,which significantly higher than those without lymph node metastasis and stage Ⅰ to Ⅱ (P＜0.05).The expression of NRF2 in patients with moderate and low differentiation were 0.854± 0.101 and 0.878 ± 0.099,which were significantly higher than patients with stage Ⅰ to Ⅱ (P＜0.05).Conclusion The expression of HPA and NRF2 in laryngeal squamous cell carcinoma are significantly increased,which are related to lymph node metastasis,TNM stage and pathological grade.
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OBJECTIVE:To establish a method for content determination of thymosin α1 in Thymopolypeptides enteric-coated tablets.METHODS:HPLC-MS/MS method was adopted.The determination was performed on Luna C18(2) with mobile phase consisted of 0.1％ formic acid-acetonitrile (gradient elution) at the flow rate of 0.7 mL/min.The column temperature was set at 30 ℃,and sample size was 20 μL.ESI was used with ion spray voltage of 4.5 kV,sheath gas flow rate of 60 arb,aux gas flow rate of 30 arb,sweep gas flow rate of 10 arb and capillary temperature at 320 ℃.The working mode was positive ion monitoring mode.RESULTS:The linear range for thymosin α1 was 1-1 000 ng/mL (r=0.999 9).The limit of quantitation was 1 ng/mL.The limit of detection was 0.1 ng/mL.RSDs of precision,stability and reproducibility tests were all lower than 2.0％.The recoveries were 95.0％-98.0％ (RSD=1.2％,n=6),respectively.CONCLUSIONS:The method is simple,rapid,sensitive and accurate,and can be suitable for simultaneous determination of thymosin α1 in Thymopolypeptides enteric-coated tablets.
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Objective To assess clinical efficacy of comprehensive treatment on chronic sinusitises (CRS) with neutro?phils infiltration and eosinophilic infiltration as pathological features. Methods A total of 256 CRS patients whose symp?toms were not been improved after surgery (visual analog scale>6,3 months after surgery) were included in this study. Dif?ferent comprehensive treatments were given to the patients according to the different types of cell infiltration. The visual ana?log scale (VAS), Lund-Kennedy and nasal histopathological examination were observed after treatment in patients. Results After different comprehensive treatments, the VAS and Lund-Kennedy were improved in patients with eosinophils infiltra?tion, but the number of eosinophils was not reduced. The VAS, Lund-Kennedy and the number of neutrophils were signifi?cantly improved in patients with mainly neutrophils infiltration. Conclusion According to different immune pathological characteristics, patients of CRS should be given different comprehensive treatments. There is a obvious efficacy for patients with neutrophil infiltration.