1.Investigation on cognitive misunderstandings in English learning among the students with traditional Chinese medicine (TCM) majors in TCM universities
Huan JIN ; Xiangguo KONG ; Min XIONG
International Journal of Traditional Chinese Medicine 2017;39(4):355-359
To investigate the current condition of cognitive misunderstandings of English learning among students with traditional Chinese medicine majors, in order to put forward strategies for English learning in TCM universities.The investigation was carried out by the method of questionnaires among the students with TCM majors. Another investigation was carried out by interviews with TCM students, English teachers and experts, TCM teachers and experts. Cognitive misunderstandings of English learning among students with TCM majors occurred, such as low participation of English extracurricular learning, wrong learning motivation, weak awareness of self-learning and international exchange and communication. There were 3 ways for solving cognitive misunderstandings, including that students could improve the correct learning attitude and self-learning awareness and practice, that English and TCM teachers and experts could give students some advice of career development and TCM internationalization, and that TCM universities could reinforce English and bilingual teacher team construction, improve educational environment.
2.Role of transcription factor DEC1 in the initiation and progression of malignant tumors
Huan YANG ; Jing XIONG ; Wenjing LUO ; Tao XI
Journal of China Pharmaceutical University 2015;(5):541-547
DEC1 is a basic helix-loop-helix(bHLH)transcription factor involved in the regulation of cell prolif-eration;cell differentiation;lymphocytes maturation;circadian rhythms;immune response and response to hypoxia.Recent studies have revealed that the expression of DEC1 is abnormally high in various tumor tissues and cells.In addition;the expression of DEC1 in the tumor tissue is related to the malignancy of various cancer types.This paper;therefore;focuses on the relationship between DEC1 and proliferation;apoptosis;cellular senes-cence;invasion and metastasis of tumor cells;in order to elaborate the role of DEC1 in the pathogenesis and pro-gression of tumor.
3.Nodal marginal zone B-cell lymphoma with monocional IgM:2 cases report and review of literatures
Huan WANG ; Xiaoge ZHOU ; Mei XIONG ; Zhao WANG
Journal of Leukemia & Lymphoma 2009;18(3):160-162
Objective To elucidate the clinical and pathological features, diagnosis, treatment and prognosis of nodal marginal zone B-cell lymphoma (NMZL). Methods 2 patients, with NMZL who has extremely elevated monoclonal IgM were analyzed and review were included. Results The common pathological diagnosis caused by the association of monoclonal gammopathy with indolent B-cell non-Hodgkin lymphomas was marginal zone lymphoma or B small cell lymphocytic lymphoma/B-cell chronic lymphocytic leukemia. According to our cases and literatures, the main distribution of involved sites in NMZL were lymph nodes, spleen and bone marrow. Sixty percent of the NMZL patients presented with advanced stage with, high risk of IPI. The diagnosis of NMZL was based on pathology of the lymph node. The proliferation and distribution of the differentiation monocytoid cell had a specified significance. Prognosis of early stage ( I or Ⅱ) NMZL were much better than that of advanced stage NMZL even the patients had received chemotherapy.Conclusion NMZL mainly involved lymph nodes, bone marrow and spleen, sporadically associated with the elevated monoclonal IgM. Most of the NMZL patients presented with advanced stage.The prognoses were poor.
4.Content determination of Podophyllotoxin in two preparations
Xiaohong JIANG ; Huan HUANG ; Xiong HUANG ; Chensheng JIN
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(03):-
Objective:To develop a HPLC method for determination of Podophyllotoxin in two preparations.Methods:HPLC was carried out,using a Dikma diamonsil C18 column(4.6mm?150mm,5?m)with a column temperature at 25℃,the methanol-water as mobile phase(using gradient)with flowing rate 1.0 mL/min.The detection wavelength was at 292 nm.Results:The method had good linear relationship within the range of 11.8-590?g/mL for Podophyllotoxin,with the correlation coefficients 0.9999.The results of the average recovery of Youdi liniment and Podophyllotoxin tincture were 99.38%,99.62%.Conclusion:The rapid,accurate and reproducible RP-HPLC method was useful for quantification of Podophyllotoxin in Youdi Liniment and Podophyllotoxin Tincture.
5.The role of miR-301 in colon cancer cell proliferation and apoptosis
Zhonglai ZHANG ; Huan XIONG ; Bing ZHANG ; Peiqian ZHU
China Oncology 2013;(6):432-438
Background and purpose: The miR-224 in a variety of malignant tumors is overexpression, however, its expression and function in colon cancer are not clear. The aim of this study was to investigate the expression of miR-301 in colon cancer tissues and demonstrate the regulative effects of miR-301 ASO on the proliferation and apoptosis of colon cancer cell in vitro and in vitro. Methods:The expression of miR-301 in 120 colon cancer tissues and their adjacent tissues was detected by real-time quantitative PCR method. After transfection with miR-301ASO, the biological effects of miR-301 in SW620 cells were measured by MTT assay, the colony formation experiment, flow cytometry and the in vivo experiment. Results: The expression level of miR-301 was found to be overexpressed in 63.33% (76/120) of the colon cancer cases (P<0.05). miR-301 expression in SW620 cells (transfection with miR-301 ASO, 0.09±0.01) was significantly less than control group (0.50±0.07, P=0.00). MTT assay results showed that SW620 cells survived rate at 24, 48 and 96 h decreased greatly after transfection with miR-301ASO (P=0.00). Clone formation assay revealed that miR-301 ASO group colony formation rate (5.33%±0.74%) was significantly lower than the control group (33.33%±8.38%, P=0.00). In vivo study further confirmed that miR-301ASO could inhibit the proliferation of SW620 cells (P<0.05), and miR-301ASO group grew substantially slow compared with the negative control group (P=0.00). Flow cytometry indicated that the apoptotic index in miR-301 ASO group (15.68±1.46) was significantly higher than the control group (3.36±0.88, P=0.02). In addition, the Bcl2 mRNA and protein were significantly decreased after reduce the expression of miR-301 (P=0.00, P=0.00). Conclusion:MiR-301 was overexpressed in human colon cancer. Reduce the expression of miR-301 can effectively inhibit the growth of colon cancer cells and promote apoptosis. MiR-301 may become a new target for the regulation of gene expression in colon cancer.
6.Gene expression of matrix metalloprotease and their inhibitors in liver tissue of rats with Vibrio vulnificus sepsis
Jingrong LI ; Shudao XIONG ; Huan HANG ; Zhongqiu LU
Chinese Journal of Clinical Infectious Diseases 2009;2(4):214-217
Objective To investigate gene expressions of matrix metalloprotease (MMP-2, MMP-9) and tissue inhibitor of metalloproteinase-2 (TIMP-2) and RECK ( reversion inducing cysteine-rich protein with Kazal motifs) in the liver tissue of rats with Vibrio vulnificus sepsis. Methods Vibrio vulnificus sepsis model was induced by injection of 1 mL/100 g Vibrio vulnificus (9 × 106 cfu/mL) at hind limbs in 50 Sprague-Dawley male rats of clean grade, each time 10 animals were sacrificed at 2, 6, 9, 12 and 16 h after injection and liver samples were taken. Ten rats served as control group. The ethological changes were observed. The total RNA was extracted from liver tissue and the gene expressions of MMP-2, MMP-9, TIMP-2 and RECK were evaluated by semi-quantitative RT-PCR. Results The rats manifested shortness of breath, fever and swelling in hind limbs at 4 h after injection of Vibrio vulnificus. These symptoms gradually deteriorated, and the rats presented cyanosis and convulsion at 12 h. The gene expressions of MMP-2 and MMP-9 were markedly up-regulated, while those of TIMP-2 and RECK were down-regulated. Conclusion The study suggests that the elevation of MMP-2 and MMP-9 and down-regulation of TIMP-2 and RECK is associated with the development of Vibrio vulnificus sepsis.
8.Changes and its clinical significance of the plasma growth differentiation factor-15 in patients with chronic congestive heart failure
Ping MA ; Huan XU ; Yehua XU ; Qingbin XU ; Aiqin XIONG
Tianjin Medical Journal 2016;44(6):736-739
Objective To investigate the changes and clinical significance of the plasma growth differentiation factor-15 (GDF-15) in patients with chronic congestive heart failure (CHF). Methods A total of 100 patients with CHF were in?cluded in this study (CHF group), and 30 healthy persons were used as control group. CHF group was divided into heart func? tionⅡgrade (n=35),Ⅲgrade (n=32),Ⅳgrade (n=33) groups in accordance with New York Heart Association (NYHA). And CHF group was also divided into left ventricular ejection fraction (LVEF)<0.4 grade (n=52) and LVEF≥0.4 grade (n=48) groups in accordance with LVEF of patients. The plasma GDF-15 and brain natriuretic peptide (BNP) levels were detected by ELISA. The values of LVEF, left ventricular end-diastolic diameter (LVDd), left ventricular systolic diameter (LVDs) and left ventricular fractional shortening (LVFS) were detected by echocardiography. The correlation of GDF-15, NYHA classifi?cation, BNP and index of echocardiography was analyzed between groups. Results Compared with control group, the levels of BNP, GDF-15, LVDd and LVDs were significantly higher in heart failure group, and values of LVEF and LVFS were sig?nificantly lower (P<0.05). The plasma levels of BNP, GDF-15, LVDd and LVDs were in turn increased in control group, LVEF≥0.4 grade group and LVEF<0.4 grade group. The plasma levels of LVFS were in turn decreased, in control group, LVEF≥0.4 grade group and LVEF<0.4 grade group (P<0.05). There were positive correlations between the plasma levels of GDF-15 and BNP, NYHA, LVDd and LVDs (r=0.524, 0.286, 0.453 and 0.531, P<0.05). The plasma level of GDF-15 was negatively correlated with LVEF and LVFS (r=-0.592,-0.587,P<0.05). Conclusion The plasma level of GDF-15 can be used as a new marker for diagnosis, treatment and prognosis in patients with chronic congestive heart failure.
9.Expression and significance of HER2 in 108 cases of colon carcinoma
Huan XIONG ; Zhonglai ZHANG ; Bin LAI ; Hongliang LUO ; Peiqian ZHU
Chongqing Medicine 2014;(2):185-187,190
Objective To detect the expression of HER2 in clinical colon carcinoma tissue ,to investigate its correlation with the clinicopathological characteristics and to analyze its influence on the proliferation and cell cycle in colon carcinoma cell lines .Methods 108 specimens of colon carcinoma and corresponding paracancerous tissues were collected .The hybridization in situ and real-time quantitative polymerase chain reaction were used to detect the HER 2 expression in those specimens .The relationship between HER2 expression and the clinicopathologic features was analyzed .The expression of HER2 in colon carcinoma cells(SW480 and Lo-Vo) was reduced by using the antisense technology .The MTT assay and the flow cytometry were used to investigate the HER2 in-fluences on the cell proliferation and cell cycles .Results The hybridization in situ results showed that the HER2 positive expres-sion rate was 66 .67% in colon carcinoma and 10 .19% in the paracancerous tissues ,the difference between them was statistically significant(P<0 .05) .The real-time fluorescent quantitative PCR results further showed that HER2 was found to be overexpressed in 61 .11% of the colon carcinoma tissue(P<0 .05);the expression of HER2 was gradually increased with the progress of colon cancer .(P<0 .05);the expression of HER2 in the colon tissue with lymph node metastasis was also significantly higher than that without lymph node metastasis in colon carcinoma (P<0 .05);siRNA-HER2 could significantly reduce the expression of HER2 in colon cancer cell lines(SW480 and LoVo) ,the growth of colon carcinoma cell lines was also significantly inhibited and the propor-tion of cells in G0/G1 phase was increased ,while the proportion of cells in S phase and G2/M phase was decreased .Conclusion HER2 is closely related with the occurrence and development of colon carcinoma ,its mechanism could regulate the grow th of colon carcinoma cells via mediating the transition of G1/S phase ,which may provide a new target for the treatment of colon carcinoma .
10.Therapeutic Observation of Blood-letting and Cupping at Fengchi (GB 20) plus Acupuncture for Peripheral Facial Paralysis in Acute Stage
Chang SHE ; Huan ZHONG ; Jian XIONG ; Xiaorong CHANG
Shanghai Journal of Acupuncture and Moxibustion 2017;36(1):38-40
Objective To observe the clinical efficacy of bloodletting and cupping at Fengchi (GB 20) plus acupuncture in treating peripheral facial paralysis in acute stage.Method Sixty patients with peripheral facial paralysis in acute stage (disease duration ≤7 d) were randomized into a treatment group and a control group, 30 cases in each group. The treatment group was intervened by bloodletting and cupping at Fengchi (GB 20) plus acupuncture, while the control group was treated with ordinary acupuncture. The two groups were treated once a day, 5 times a week, 2 weeks as a treatment course and 3 treatment courses in total. The House-Brackmann (H-B) facial nerve grading system was observed before and after the intervention, and the clinical efficacies in the two groups were compared. Result The total effective rate was 96.7% in the treatment group versus 93.3% in the control group, and the difference was not statistically significant (P>0.05). There were statistically significant differences in the H-B score between the two groups respectively after 2 and 3 treatment courses (P<0.05).Conclusion Bloodletting and cupping at Fengchi (GB 20) plus acupuncture is an effective approach in treating peripheral facial paralysis in acute stage.