Objective To investigate inhibitory effects of matrine (Ma) combined with vincristine (VCR), cytosine arabinoside (Ara-c), harringtonine (HRT), adriamycin (ADM), and daunorubicin (DNR) on proliferation of K562 cells. Methods MTT colorimetric assay was used to detect the inhibition rate of Ma combined with antineoplastic on K562 cells. Results The proliferation of K562 cells was inhibited by Ma at the concentration of 160 ?g/ml to 400 ?g/ml. The inhibitory rates of Ma combined respectively with VCR, Ara-c, HRT, ADM, and DNR were significantly higher than those of VCR, Ara-c, or HRT alone (P0.05). Conclusion Ma can inhibit the proliferation of K562 cells in a dose-dependent manner. The anti-proliferation effect of VCR, Ara-c, and HRT on K562 cells could be enhanced by Ma.

In order to provide reference for treatment of liver tumors using traditional Chinese medicine, we analyzed the research status of liver tumor treatment with traditional Chinese Medicine based on PubMed. By the bibliography information concurrence mining system (BICOMB 2013), the literature were collected and analyzed from PubMed database from the day of establishment to 31 October 2017. CytoScape3.6.1 software was used to draw the Co-occurrence analysis chart of high-frequency subject headings and the subheadings, and SPSS17 statistical software was used to cluster the high frequency subject headings. 365 literatures were collected in total. The amount of published articles is increasing year by year. The literatures were mainly in English. From the literature indicating the author's country, we found that 70％ of the top 10 countries and regions which published the most papers were from Asia. Among them, Chinese scholars ranked first. The top 5 of the high-frequency subject headings and the subheadings were Humans, Male, Animals, Liver Neoplasms/drug therapy and Carcinoma, and Hepatocellular/drug therapy. The research focused on the following 9 aspects: metabolism of liver cells, neoplasms, liver cancer pathology, pharmacological efficacy of liver cancer, relationship between cell proliferation and apoptosis and efficacy; xenograft model antitumor assays in mice, pharmacology of antitumor Chinese herbal medicine or phytogenic drugs, the effects of dose-response relationship, cellular activity and signal transduction on drug efficacy, therapeutic uses of traditional and phytotherapy and the outcome and mortality of liver tumor. By the bibliometric analysis in the field of traditional medicine for liver tumor, we can understand the research direction and development status of this field, which can be reference for prevention and treatment of liver cancer with TCM.

Objective:To investigate the normal range of exhaled nitric oxide (FeNO) in 6-18-year-old children in China, so as to provide a data base for the establishment of FeNO standards for Chinese children.Methods:A multi-center study was conducted on 5 949 children aged 6-18 (3 101 males and 2 848 females) in 16 pro-vinces of 7 administrative districts in China.According to the technical standard recommended by American Thoracic Society/European Respiratory Association, FeNO was measured, and the relationship of FeNO with the sex, age, height, weight, body mass index and region was discussed.Results:The geometric mean FeNO value of Chinese children aged 6-18 was 14.1 ppb, and its 95% confidence interval (skewness distribution) was 1.0-38.2 ppb.The geometric mean FeNO values of children aged 6-11 and 12-18 were 13.1 ppb and 15.7 ppb, respectively, and their 95% confidence intervals (skewness distribution) were 1.0-38.1 ppb and 2.0-38.2 ppb.For children at and under 11 years old, FeNO decreased with age, with a mean decline of 1 ppb per year.The multiple linear regression results suggested that there was a significant correlation between FeNO and age for children aged 6-11, and FeNO of children aged 12-18 was significantly correlated with the gender, height, and region(all P<0.01). Conclusions:FeNO values of Chinese children and adolescents in this study are higher than those obtained by the previous study conducted from 2010 to 2012.For children aged 12-18, 16 ppb is recommended as the clinical cut-off point.For children at or under 11 years old, the influence of age on FeNO should be considered, and the cut-off point of FeNO decreases by 1 ppb as the age is reduced by one year.