Objective:To investigate the response of mandibular condylar chondroprogenitors to flow fluid shear stress(FFSS).Methods:Chondroprogenitors were in vitro cultured and stimulated with FFSS that can cause cell degeneration,and treated with sec-ond-generation high-throughput RNA sequencing.Differential gene expression was screened using DESeq2 software for gene ontology(GO)functional enrichment analysis,kyoto encyclopedia of genes and genomes(KEGG)pathway enrichment analysis and protein-protein interaction(PPI)network analysis.qRT-PCR was performed to validate the core genes screened by PPI.Results:A total of 1996 differentially expressed genes were obtained,mainly including inflammatory response and cell cycle related molecules.Among them,Actal,Atf3,Ccl2,116,Nfkbia,Ret and Vcaml were identified as the core genes.Conclusion:FFSS stimulation affects chondroprogenitor function by acting on inflammatory responses and cell cycle-related signaling pathways in chondroprogenitors.

In recent years, chimeric antigen receptor T-cell (CAR-T) therapy has shown a certain value in the treatment of malignant hematological tumors, especially for patients with relapsed/ refractory B-cell lymphoma. Currently, 18F-FDG PET-CT has proved its great clinical values in the diagnosis and treatment of lymphoma. There are relatively few studies using 18F-FDG PET-CT to evaluate B-cell lymphoma treated by CAR-T therapy, but some good results have also been achieved. This paper reviews the current research progress of 18F-FDG PET-CT in CAR-T therapy for B-cell lymphoma.

Objective:To analyze the trend of disease burden of oral cancer attributable to smoking in China from 1990 to 2019, and predict the mortality trend of oral cancer from 2020 to 2034, providing scientific basis for formulating targeted oral cancer prevention and treatment strategy to achieve the goal of "Healthy China 2030".Methods:Using partial data on the global burden of disease in China in 2019, attributive death and disability adjusted life year (DALY) were used to describe. The trend of changes in the burden of oral cancer disease attributed to smoking was analyzed by using the Joinpoint regression model to estimate the annual average percentage change (AAPC) of age standardized mortality and DALY rates. Meanwhile, the Bayesian age-period- cohort model is used to predict oral cancer deaths and DALY trends attributed to smoking over the next 15 years.Results:The age-standardized mortality rate and DALY rate in China from 1990 to 2019 showed an overall upward trend, with an average annual increase of 1.49% (95 %CI: 1.34%-1.65%, P<0.001) and 1.41% (95 %CI: 1.24%-1.59%, P<0.001) respectively, higher than around the earth and in regions with different socio-demographic index (SDI). In 2019, 46.74% (10 584/22 642) of oral cancer deaths in China were attributed to smoking. Compared to 1990, the number of attributed deaths in 2019 increased by 293.75% (7 896/2 688), while DALY increased by 257.97% (189 039/73 280). Moreover, the growth rates of attributed deaths and DALY in males [304.95% (7 584/2 487) and 265.60% (183 349/69 033), respectively] were significantly higher than those in females [154.73% (311/201) and 133.95% (5 690/4 248), respectively] ( P<0.001). The age group results showed that the proportion of deaths and DALY gradually transitioned towards the elderly (>60 years old). The expected number of deaths would increase from 10 731 in 2020 to 14 125 in 2034, with a rise of 31.63% (3 394/10 731). Simultaneously, DALY would increase from 267 064 person years in 2020 to 326 634 person years in 2034, with a rise of 22.31% (59 570/267 064). Conclusions:From 1990 to 2019, the burden of oral cancer diseases attributed to smoking in China showed an increasing trend, with a higher growth rates than in the global and different SDI regions. There were differences in gender and age, and the burden of oral cancer diseases attributed to smoking in China would continue to increase in the next 15 years. It is necessary to educate on the adverse effects of tobacco consumption and to conduct vigilant oral self-examination among high-risk groups to help early detection and intervention at the same time.

Objective To compare the effects of ticagrelor and clopidogrel on platelet aggregation rate, myocardial perfusion and prognosis in patients with acute myocardial infarction. Methods One hundred and sixty-nine patients with acute ST segment elevation myocardial infarction (STEMI) and emergency percutaneous coronary intervention (PCI) were recruited and randomly divided into ticagrelor group (85 cases) and clopidogrel group (84 cases). The TIMI blood flow before and after PCI was recorded, and the ST segment fall rate of 1 h ECG after PCI was calculated. The platelet aggregation rate was measured. After 12 months' follow-up, the incidence of major adverse cardiac events (MACE) was recorded. The Logistic regression analysis was used to discover the factors of MACE. Results One hundred and sixty-nine patients with acute STEMI were recruited including 85 cases treated with ticagrelor and 84 cases in clopidogrel group. The ECG ST segment fall rate after PCI in ticagrelor group was significantly higher than that in clopidogrel group: (61.3 ± 30.7)％ vs. (47.8 ± 26.6)％, P<0.05. The platelet aggregation rate 2 h, 24 h and 7 d after PCI in ticagrelor group was significantly lower than that in clopidogrel group (P<0.05). MACE occurred in 19 cases (22.4％) in ticagrelor group and in 21 cases (25.0％) in clopidogrel group, and there was no significant difference (P > 0.05). Multiple Logistic regression analysis revealed that age and ECG ST segment fall rate were independent risk factors for MACE (P<0.05). Conclusions Compared with clopidogrel, ticagrelor can effectively reduce platelet aggregation rate and accelerate ST segment fall in STEMI patients, but their long-term prognosis is similar.

Objective To explore the change and clinical significance of the serum carcinoembryonic antigen (CEA)and carbohydrate antigen 724(CA724)in patients with rectal cancer before and after neoadjuvant ra-diotherapy and chemotherapy.Methods The serum levels of CEA and CA724 of 30 patients with rectal carci-noma were detected by electrochemiluminescence method and were compared with those in 30 healthy people. Results The serum levels of CEA and CA724 in rectal carcinoma patients before neoadjuvant radiotherapy and chemotherapy were significantly higher than those in the healthy people,the difference was statistically significant(P<0.05).The serum levels in complete remission and partial remission patients after eight-week neoadjuvant radiotherapy and chemotherapy were significantly lower than those before treatment,the differ-ence was statistically significant(P<0.05),and the reduction levels were obviously higher than those in the stable group,the difference was statistically significant(P< 0.05).The CEA and CA724 levels in the stable treatment patients were also lower than those of before neoadjuvant radiotherapy and chemotherapy,the difference was statistically significant(P<0.05).The serum levels in the progression group were higher than those of before treatment(P<0.05).The serum levels of CEA and CA724 before neoadjuvant radiotherapy and chemotherapy existed a positive correlation(r=0.862,P=0.000).Conclusion The serum levels of CEA and CA724 in rectal cancer are highly expressed,suggesting that both of them are closely related to the occur-rence and development of rectal carcinoma,the measurement of the serum level changes of CEA and CA724 in patients with rectal cancer before and after treatment contributes to estimate the efficacy of neoadjuvant radio-therapy and chemotherapy and tumor progression.

Objective To investigate the effects of tripterygium glycosides combined with methotrexate in treatment of rheumatoid arthritis (RA) curative effect and peripheral blood of patients with IL-6, effects of IL-10 and TNF- alpha. Methods 80 patients with RA from February 2014 to August 2016 in our hospital were retrospectively analyzed. According to the different treatment methods by for the observation group, the control group (40 cases). To compare and analyze the curative effect before and after short-term treatment and treatment of patients in the 2 groups were the main clinical symptoms and signs of change and ESR, RF, CRP, IL-6, TNF- alpha, IL-10 index. Results The total effective rate of observation group (92.50％) was significantly higher than the control group (77.50％), the difference was statistically significant (P<0.05), 2 groups of patients before treatment of main clinical symptoms and signs, there was no significant difference, after treatment, clinical symptoms and signs of 2 groups of patients were compared with those before treatment was statistically significant to alleviate the differences (P<0.05), and the observation group of main clinical symptoms and signs were lower than the control group and the remission (down), the difference was statistically significant (P<0.05).Before ESR, the treatment of 2 patients with RF, CRP, TNF- IL-6, alpha, IL-10 index level, no statistical significance, the 2 groups after treatment in patients with ESR, RF, CRP, IL-6, TNF- alpha, IL-10 index level than before treatment with significant difference (P<0.05), and the observation group ESR, RF, CRP, TNF- alpha, IL-6 average index of water compared with the control group decreased significantly, IL-10 index increased significantly than the control group. The difference was statistically significant (P<0.05). Conclusion Tripterygium glycosides combined with methotrexate in treatment of rheumatoid arthritis And it can effectively inhibit the expression of peripheral serum L-6 and TNF- alpha, promote the expression of IL-10 and alleviate the inflammatory reaction

Objective To investigate the expression of circulating tumor cells (CTC) in peripheral blood of patients with different stages of colorectal cancer (CRC), and to evaluate its significance in early diagnosis of colorectal cancer metastasis. Methods Sixty patients with CRC (42 inⅡ-Ⅲstage and 18 in IV stage ) and 30 patients with benign rectal disease were recruited from January 2014 to December 2015. The CTC in peripheral blood was purified with Immunomagnetic Separation Technologie, and detected by immunofluorescence in situ hybridization (imFISH). The serum levels of CEA were detected by electrochemiluminescence method meanwhile. The correlation between CTC and CEA was analyzed. Results CTC positive rates in CRC patients were significantly higher than those in benign rectal disease controls. CTC positive rates inⅣstage were significantly higher than those inⅡ-Ⅲ stage. The expression of CTC was significantly correlated with CEA (r = 0.6652, P < 0.01). Conclusions The expression of CTC in CRC patients is significantly higher than that in benign rectal disease control group. It is closely related to clinical stages. Detection of peripheral blood CTC has important clinical significance in the early diagnosis of CRC metastasis.