The transcript encoding 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) was discovered from the transcriptome data of Huperzia serrata. The transcript contained an open reading frame with length of 1,440 bp and coded 479 amino acids. The full length of HsDXR1 had been cloned using RT-PCR method. Ac-cording the bioinformatic analysis, the molecular weight of HsDXR1 protein was 51.4961 kDa and the pI was 6.44. No signal peptide and transmembrane site was discovered in HsDXR1, and the protein was most likely to be located in chloroplast. HsDXR1 had the same domain similar to the DXR protein of Arabidopsis and Oryza sativa. The expression level of HsDXR1 was most abundantly in H. serrata stem, followed by root and leaf. This study cloned and analyzed HsDXR1 gene from H. serrata for the first time. The result will provide a foundation for exploring the mechanism of terpene biosynthesis in H. serrata plants.

Cai which are stem or heartwood of trees or stem of woody liana are a kind of medicinal plant resources traditionally used by Li Minoriy. Ethnobotanical methods were adopted for the investigation on traditional utilization of cai. Totally, 44 species in 26 families and 30 genera were reported to be used as cai. Most of the species were applied as decoction (70.5%) and medicinal liquor (27.3%) to treat a wide range of diseases, such as rheuma-toid arthritis (34.1%), liver diseases (18.2%), injuries and weak (15.9% respectively). Through literature survey, it was found that 7 species (15.9%) were used by Li Minority only. Besides, 13 species (29.5%) were used differently compared with that of Traditional Chinese Medicine. Consequently, it is indicated that indigenous knowledge of using medicinal plants by Li Minority is unique.

Objective To establish the system of inducement, subculture, and plantlets regeneration of callus from Salvia miltiorrhiza. Methods Compared with the effect of different explants, basic media, and plant growth regulator on the inducement, subculture of callus, and the differentiation of buds. Results MS+6-BA 2 mg/L+NAA 0.2—2 mg/L was propitious to the inducement of callus and the ratio of induced callus, for both the leafstalk and lamina, was 100%, but quantity of induced callus was more of The ratio of buds differentiation was 55.6% on the medium of MS+6-BA 2 mg/L, and it could grown into buds directly. B5+6-BA 1 mg/L+2, 4-D 1 mg/L was the better subculture medium of callus. ConclusionSo for the callus inducement, the better explant and medium are leafstalk and MS+6-BA 2 mg/L+NAA 0.2—2 mg/L, respectively; For the buds differentiation, the better explant and medium are lamina and MS+6-BA 2 mg/L, respectively; For the subculture of callus, B5+6-BA 1 mg/L+2, 4-D 1 mg/L is better.

Objective To explore the fixed-effects of the treatment using transarticular screw joint lateral mass screw unilateral bi-direction fixation through posterior midline approach.Methods 16 patients,12 patients with traumatic fracture-dislocation and 4 patients with cervical disc herniation with spinal stenosis,were treated with transarticular screw(caudad) joint lateral mass screw (cephalad)unilateral bi-direction fixation in the posterior cervical.Results 32 transarticular screws were implanted,including C4-5 8 pieces,C5-6 12 pieces,C6-7 12 pieces;36 lateral mass screws were implanted,including C2 13 pieces,C3 14 pieces,C4 9 pieces.All screws were successfully implanted in operation,without injuries and other complications in vertebral artery,nerve root and spinal cord.16patients were followed up for averaged 18 months ( 10 - 30 months).Surgical incisions reduced by half than traditional ,fusion time were 2.0 to 4.5 months for an average of 3.1 months.Conclusions When through theposterior fixed cervical spine,used transarticular screw joint lateral mass screw unilateral bi-direction fixation,fixed simply and reliably,reduced internal fixation materials for implantation,reduced operative time,increased bone bed area,the bone fusion rate was high,reduced the length of surgical incision,reduced the blood vessels,nerve root injury risk ,reduced complications such as axial symptoms ,saved medical expenses,achieved good results.

The treatment of hepatocellular carcinoma (HCC) has always been a hot spot of medical research worldwide. At present, surgical resection is the main therapy for HCC, supplemen-ted by interventional therapy, chemotherapy, radiotherapy, etc. Although the overall survival of HCC has been significantly improved in recent years, the overall effect is still unsatisfactory. New systemic therapeutic drugs are constantly emerging and applied to clinical practice, which bring new opportunities and challenges for the treatment of HCC. However, too many diagnosis and treatment topics bring obvious contradiction between the division system and the orderly and standardized HCC treatment. In the future, how to realize unified and standardized homogeneous diagnosis and treatment is the key problem to be solved urgently. The authors summarize the current status of diagnosis and treatment of HCC and propose the long-term management concept for HCC according to their own clinical experience and the current advances of the diagnosis and treatment at home and abroad, and carry out new practice and investigation on the patients with HCC by constructing a hepatobiliary multi-technical team.

ObjectiveTo screen out the mRNAs involved in the resistance of hepatoma cells to anlotinib using ceRNA microarray. MethodsHigh-dose shock combined with low-dose induction was used to culture hepatoma cells resistant to anlotinib, and CCK8 assay was used to verify the difference in the proliferation of drug-resistant hepatoma cells treated by anlotinib. The ceRNA microarray was used to screen out the differentially expressed genes between drug-resistant hepatoma cells and normal hepatoma cells, and real-time PCR was used to verify the differentially expressed genes detected by some microarrays. the independent samples t-test was used for comparison of continuous data between two groups, and the Kaplan-Meier method was used to analyze the overall survival of hepatoma cells samples, and the log-rank test was used to compare survival rates. Fisher’s exact test was used for chip screening. ResultsThere was a significant difference in gene expression between drug-resistant hepatoma cells and normal hepatoma cells, and 10 genes with the greatest difference were screened out for analysis by reducing the range. There were 4 genes associated with drug resistance and tumor growth, i.e., BIRC2, BIRC7, ABCC2, and MAPK8. There were significant reductions in the expression levels of BIRC2, ABCC2, and MAPK8 (P=0001 4, 0001 2, and 0.011 8), and there was a significant increase in the expression of BIRC7 (P＜0.001). The results of real-time PCR were consistent with those of microarray (t=10.74,32.65,18.34, and 2.80; P=0.000 4, 0.000 1, 0.000 1, and 0.044 8). The high expression of BIRC7 and the low expression of MAPK8 were associated with the significant reduction in survival time (P=0.022 0 and 0.005 6). ConclusionBIRC2, BIRC7, ABCC2, and MAPK8 are differentially expressed between anlotinib-resistant hepatoma cells and normal hepatoma cells and may be involved in the resistance of hepatoma cells to anlotinib.

Radical resection is the only measurement to cure patients of hepatobiliary and pancreatic tumors. The comprehensive application of endoscopy, interventional therapy, radiotherapy and systemic therapy can not only significantly improve the early diagnosis rate of the disease, and successfully transform some borderline resectable tumors into radical resectable states, but also reduce the recurrence rate of tumors after surgery, thus prolonging the survival time of patients. In recent years, the continuous emergence of new systemic therapeutic drugs has brought new opportunities for patients with hepatobiliary and pancreatic malignancies, but the number of doctors participating in diagnosis and treatment has also increased accordingly. Therefore, the contradiction between the division system based on treatment methods and the orderly and standardized treatment is becoming more and more prominent. According to the latest progress of hepatobiliary and pancreatic cancer research at home and abroad, and combined with our clinical experience, we proposed a long-term management concept based on hepatobiliary and pancreatic comprehensive multi-technical team. Based on this concept, we have carried out new thought and practice on the diagnosis and treatment of patients with hepatobiliary and pancreatic malignant tumors.