Objective To analyze the characteristics of lymphocyte subsets and interleukin-2 re-ceptor (CD25) in patients with severe fever with thrombocytopenia syndrome (SFTS) in Zhoushan island. Methods Automated blood analyzer , automatic biochemical analyzer and flow cytometry were used to meas-ure hematological parameters , biochemical parameters and lymphocyte subsets in patients with SFTS before and after treatment .The dynamic changes and correlation analysis were statistically analyzed .Results The counts of white blood cells (WBCs), platelets, total T cells and CD4+T cells in patients with SFTS before treatment were significantly lower than those in healthy subjects .The counts of WBCs and platelets were sig-nificantly increased after ten days of treatment , and the level of CD25+cells was higher than that in control group, but the level of total T cells and CD 4+T cells were still lower than those in healthy subjects ( P<0.05).Patients died of SFTS had significantly lower counts of total T cells , CD4+T cells, CD8+T cells and CD25+cells than cured patients (P<0.05).The level of CD25+cells and B cells were positively correlated with WBC level (P<0.05).Platelet level was positively correlated with the percentage of CD 4+T cells (P<0.05).The level of alanine aminotransferase and creatine kinase were positively correlated with the number of CD3+T and CD8+T cells (P<0.05).Conclusion SFTS virus infection affected the percentage of body′s immune cells, especially the level of CD4+T cells.The imbalanced immune system was correlated with the counts of WBCs , platelets and various enzymes in serum and it might be one of the factors causing extensive damage of multiple organs and tissues .

AIM:To investigate the role of anti-miR-21 oligonucleotide ( AMO) in the anti-leukemic activity of decitabine (DCA) in vitro.METHODS:AMO and scramble oligonucleotide (SCR) were constructed and transfected into HL-60 cells.The miR-21 expression was analyzed by real-time PCR to identify the transfection efficiency .The cells were treated with DCA at gradient concentrations (0.5, 2.0 and 4.0 μmol/L) for 48 h.The mRNA expression of human period circadian protein 3 (hPer3) was detected by real-time PCR.The early apoptotic rates were determined by flow cy-tometry with Annexin V/PI staining.Mean fluorescence intensities ( MFI) of CD117 and CD11b were also measured by flow cytometry.RESULTS:The miR-21 relative expression level in AMO group was significantly lower than that in blank group and SCR group (P<0.01).IC50 of DCA in AMO group was significantly lower than that in blank group and SCR group (P<0.01).With the same concentration of DCA, the early apoptotic rate, the mRNA expression of hPer3 and the MFI of CD11b in AMO group were significantly higher than those in blank group and SCR group (P<0.01).The MFI of CD117 in AMO group were significantly lower than those in blank group and SCR group ( P<0.01 ) .CONCLUSION:Activation of hPer3 expression plays an important role in enhanced anti-leukemic activity of decitabine by AMO in vitro.

Objective To explore the effect of SIRT1 gene silencing on the radiosensitivity of diffuse large B-cell lymphoma (DLBCL) cells.Methods Immunohistochemistry was used to measure the protein expression of SIRT1 in DLBCL tissues.Western blot was used to measure the expression of SIRT1 in DLBCL cell lines (OCI-Ly3,SU-DHL-2,and SU-DHL-4) and the immortalized B cell line HMy2.CIR.After SU-DHL-4 cells were transfected with si-SIRT1 and si-NC using Lipofectamine 2000,the expression of SIRT1 was determined by Western blot.MTT assay and colony-forming assay were used to assess the cell growth and colony formation ability of SU-DHL-4 cells treated with radiation.The group t-test or univariate analysis of variance was used for comparison between groups.Results The expression rate of SIRT1 in DLBCL tissues was 72.6%(103/140),which was significantly higher than that in reactive lymphoid hyperplasia (RLH) tissues (26.5%,8/25)(P=0.001).The SIRT1 expression was significantly higher in DLBCL cells than in HMy2.CIR cells (P=0.020).After SIRT1 gene silencing by si-SIRT1,the expression of SIRT1 was significantly reduced in SU-DHL-4 cells (P=0.008).Besides,SIRT1 gene silencing significantly reduced the growth rate and colony formation ability of SU-DHL-4 cells treated with radiation (P=0.030).Conclusions SIRT1 gene silencing enhances the radiosensitivity of DLBCL cells,providing a novel target for the radiotherapy of DLBCL.

The surveyof the situation of medical treatment for foreign students in Chongqing shows that there are certain problems in schools,hospitals and students etc.To strengthen the public health building,to improve conditions of medical services,to provide the necessary guide for medical treatment,and to enhance foreign students'self-adaptive capacities and so on may help solve these problems and improve the foreign students'health quality.

Objective To analyze the changes of hematological parameters and coagulatory function in sever fever with thrombocytopenia syndrome (SFTS) in Zhoushan island.Methods Automated blood analyzer and automatic coagulation analyzer were used to measure hematological parameters and coagulatory function in SFTS patients before and after ten days treatment.Results The counts of white blood cells (WBC),neutrophils and lymphocytes and platelets of the 27 cases with SFTS were significantly lower than those of normal controls (P ＜ 0.05) ; Moreover,the counts of platelets was significantly higher in the cases who recovered as compared with those who died (P ＜ 0.05).Prothrombin time (PT),activated partial thromboplastin time (APTT) and thrombin time (TT) of SFTS patients before treatment were longer than normal controls,whereas fibrinogen (FIB) was lower (P ＜ 0.05).Pearson correlation analysis showed that APTT and platelet (PLT) of SFTS patients before treatment had significantly negative correlation (P ＜ 0.05),as well as PT,APTT and TT were negatively correlated with PLT of SFTS patients with 10 d treatment.Conclusion Paying close attention to the hematological parameters and coagulation function,especially PLT and APTT,has important clinical significance in diagnosis and monitoring of disease progression in patients with SFTS.

Objective To investigate the role and mechanism of circular RNA-vimentin (circ-VIM) in the proliferation and apoptosis of colorectal cancer cells.Methods From December 2016 to December 2017, at Department of General Surgery of The First Affiliated Hospital of Zhengzhou University, the clinical data of 100 patients who underwent radical resection of colorectal cancer and were confirmed by pathological examination after operation were collected.The tumor tissues and corresponding paracancerous tissues (negative control) were also collected.The expression of circ-VIM in the colorectal cancer tissues was determined by quantitative real-time polymerase chain reaction (qRT-PCR).The proliferation of HCT-116 and HT29 colorectal cancer cells was detected by cell counting kit-8 assay.The ratio of apoptosis of HCT-116 and HT29 cells was measured by annexin Ⅴ/propidium iodide double staining assay.The mitochondrial membrane potential of HCT-116 and HT29 cells was examined by 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethyl-imidacarbocyanine iodide (JC-1) assay.The expression changes of protein kinase B and mammalian target of rapamycin were tested by Western blotting.The target miRNA of circ-VIM was predicted by miRDB software.T-test and chi-square test were performed for statistical analysis. Results The expression of circ-VIM in colorectal cancer tissues was 2.387 ±0.536, which was higher than that in corresponding paracancerous tissues (1.110 ±0.134), and the difference was statistically significant (t =23.096, P <0.01).And the expression levels of circ-VIM were significantly different in patients with different tumor size, TNM stage and lymph node metastasis (all P <0.05).The proliferation of HCT-116 cells and HT29 cells in lenti-circ-VIM group was 0.737 ±0.023 and 0.835 ±0.025, respectively, which were both higher than those in control group (0.449 ±0.020 and 0.531 ±0.019), and the differences were statistically significant (t =20.706 and-15.374, both P <0.01).The proliferation of HCT-116 cells and HT29 cells in lenti-circ-VIM-shRNA group was 0.236 ±0.027 and 0.243 ±0.019, which were lower than those in control group, and the differences were statistically significant (t =24.557 and -23.197, both P <0.01).The ratio of apoptosis of HCT-116 cells and HT29 cells in lenti-circ-VIM-shRNA group was (18.00 ±1.82)％ and (20.80 ±0.61)％, which was higher than those in control group ((6.64 ±2.01)％ and (7.35 ±1.36)％), and the differences were statistically significant (t =8.826 and 17.454, both P <0.01).The fluorescence intensity ratio of JC-1 aggregate and JC-1 monomer of HCT-116 cells and HT29 cells in lenti-circ-VIM-shRNA group was 2.21 ±0.12 and 1.40 ±0.11, which was lower than those in control group (14.54 ±1.00 and 9.24 ±1.18), and the differences were statistically significant (t =-19.558 and-15.685, both P <0.01), which indicated mitochondrial membrane potential decreased.After treated with lenti-circ-VIM-shRNA, the expression of phosphorylated protein kinase B, phosphorylated mammalian target of rapamycin, B-cell lymphoma-2 and mitochondrial cytochrome C at protein level were all down-regulated, however the expression of cytoplasmic cytochrome C, B-cell lymphoma-2 associated X protein and cleaved caspase-3 at protein level were all up-regulated.When the expression of circ-VIM was up-regulated, the expression of miRNA-147b, miRNA-4447 and miRNA-3656 was down-regulated.When the expression of circ-VIM was down-regulated, the expression of miRNA-147b, miRNA-4447 and miRNA-3656 was up-regulated.Conclusion The expression of circ-VIM in colorectal cancer is abnormally increased, which is involved in the proliferation and apoptosis of colorectal cancer cells.

Objective: To explore the influence of adverse childhood experiences (ACEs) on pubertal development of boys and girls and to provide a reference for the development of intervention measures. Methods: A stratified cluster sampling method was used to select a total of 1 156 students in grades three and four in the boarding school system and public primary schools in Huangshan City and surrounding towns in September 2018, using the Childhood Trauma Questionnaire (CTQ) and the Pubertal Development Scale (PDS). For the baseline self-assessment survey, according to different dimensions, abuse children score no exposure groups. Children were divided into an exposure group and a high exposure level group, according to their childhood experiences. PDS self-report questionnaire was administered two years later, and an analysis of ACE type and severity of the continuous impact of youth development was conducted. Results: In the baseline survey, there were 53 girls (11.32%) and 51 boys (7.41%) who developed earlier. The rate of early development in girls was higher than that of boys, and the difference was statistically significant(χ 2=5.21, P<0.05). Univariate analysis showed gender differences in the effects of type and severity of ACEs and abuse on adolescent development at both baseline and follow-up. There were gender differences in the rate of early development between boys and girls at baseline and at follow-up between the exposure groups. Regression analysis showed that the higher the degree of emotional abuse, emotional neglect, and sexual abuse in girls, the higher the PDS score(B=0.22, 0.15, 0.08, P<0.05). In boys, the more severe the emotional abuse experienced, the higher the PDS score, and the more severe the physical abuse experienced, the lower the PDS score(B=0.20, 0.04, P<0.05). Conclusion Attention should be paid to the influence of ACEs and gender differences during youth development among male and female students, and more longterm studies should also be carried out.

Objective:To investigate the effect and molecular mechanism of circular RNA-UBXN7 (circ_UBXN7) on the proliferation, migration and apoptosis of hepatocellular carcinoma cells.Methods:Circ_UBXN7 expression in the tissues and cells of hepatocellular cancer was detected by quantitative real-time polymerase chain reaction (qRT-PCR), and the relationship between circ_UBXN7 expression and clinicopathological features, including age, gender, tumor volume, pathological classification, staging, and lymph node metastasis was analyzed. The full-length sequence of circ_UBXN7 with lentivirus carrying lenti circ_UBXN7 and lenti circ_UBXN7 shRNA was constructed to transfect hepatocellular cell lines (HepG2 and Huh-7), respectively. CCK-8 experiments were performed to detect the ability of up- or down-regulation of circ_UBXN7 on the proliferation of HEPG2 and HUH-7 cells. Annexin V / PI experiment was used to detect the changes in apoptosis of HEPG2 and HUH-7 cells after up-regulation or down-regulation of circ_UBXN7 expression. JC-1 assay was used to detect the changes in mitochondrial potential energy of HEPG2 and HUH-7 cells after up-regulation or down-regulation of circ_UBXN7 expression. Transwell was used to detect the migration ability of HEPG2 and HUH-7 cells after up-regulation or down-regulation of circ_UBXN7 expression. Western blotting was used to detect the expressional change of TWIST, E-cadherin, N-cadherin and vimentin. Statistical analysis: The expression levels of circ_UBXN7 and clinicopathological features were measured by chi-square test. Two groups were compared by t-test and three groups and above were compared by single factor analysis of variance. LSD method was used for comparison between groups.Results:The expression of circ_UBXN7 in liver cancer tissues was significantly higher than adjacent tissues, and its expression level was significantly positively correlated with tumor volume, stage, and lymph node metastasis ( P < 0.05). Lenti-circ_UBXN7 had up-regulated the expression of circ_UBXN7 in HEPG2 and HUH-7 cells and promoted cell proliferation. Lenti-circ_UBXN7-shRNA had down-regulated the expression of circ_UBXN7 and induced apoptosis. Lenti-circ_UBXN7-shRNA had reduced the mitochondrial membrane potential of cells. Lenti-circ_UBXN7 had promoted cell migration, while lenti-circ_UBXN7-shRNA had inhibited cell migration. Lenti-circ_UBXN7 had induced increased expression of Twist, N-cadherin, and Vimentin proteins, and reduced the expression of E-cadherin protein. Lenti-circ_UBXN7-shRNA had opposite effects on the expression levels of each protein. Starbase V2.0 software showed that miR-203a and circ_UBXN7 had potential binding sites, and miR-203a and circ_UBXN7 expression levels were negatively correlated in HEP ??G2 and HUH-7 cells. Conclusion:circ_UBXN7 plays an important role in promoting the occurrence and development of liver cancer, and is expected to become a potential target for the treatment of liver cancer.

Objective:To establish the Ultra-High Performance Liquid Chromatography (UPLC) characteristic chromatogram of different parts of Alpinia oxyphylla Miq., and to compare different parts of the chemical components based on multivariate statistical analysis. Methods:The UPLC was used to establish the fingerprint of Alpinia oxyphylla Miq. . The chromatograms were matched to generate the UPLC charactersistic chromatogram of different parts. Based on the variance analysis of single factor, combined with the Principal Component Analysis (PCA) ,Cluster Analysis (CA) and the Partial Orthogonal Least Square Discriminant Analysis (OPLS-DA) to analyze the differences of different medicinal parts of Alpinia oxyphylla Miq.. Results:16 common peaks of Alpinia oxyphylla Miq. were demarcated in crude drugs, compared with the medicinal materials of Alpinia oxyphylla Miq., the peak 13 (tectochhrysin) was lost in the decoction pieces, and the shell were missing peak 5 and peak 6. The results of PCA and CA showed that 15 batches of different medicinal parts of Alpinia oxyphylla Miq. can be broadly divided into 3 categories. The OPLS-DA result showed that the value of the peak area of peaks 14 (Nootkatone), 4, 7 and 12 were the main factors affecting the chemical composition of different parts of Alpinia oxyphylla Miq. .Conclusion:The fingerprint determination method established in this study is stable and controllable, which could distinguish the different parts of Alpinia oxyphylla Miq. .

Non-coding RNAs(ncRNAs) are special RNAs that they don't have protein coding function, but they can affect chromosome structure, gene transcription and participate in the processes of epigenetic modifications. ncRNAs include long non-coding RNAs, microRNA, etc. In recent years, it has been found that these ncRNAs can maintain bone remodeling by adjusting bone resorption and formation in osteoporosis(OP). In the future, it may be a key target of the drug action screening which is clarifying the regulatory mechanism of ncRNAs in the occurrence and development of OP. OP belongs to bone rheumatism category in traditional Chinese medicine, according to the theory of “the kidney generating marrow and dominating bone” in traditional Chinese medicine, kidney tonifying and bone strengthening formulas are used to treat the OP in clinic, and the curative effect is remarkable. It has been found that kidney tonifying and bone strengthening prescriptions can enhance the proliferation of osteoblasts or inhibit the differentiation of osteoclasts by up-regulating or down-regulating the expression of ncRNA, and finally maintain OP bone homeostasis, thus exerting therapeutic effect. However, the specific molecular mechanism is still in its exploratory stage. Therefore, this paper summarized the molecular mechanism of kidney tonifying and bone strengthening prescriptions regulating ncRNAs in the treatment of OP in recent years, in order to provide the new ideas for the screening of the key therapeutic targets of OP drugs and the prevention and treatment of OP with traditional Chinese medicine.