1.Prevalence of dyslipidemia and correlation between blood lipid and metabolic factors among urbanized region residents in Hangzhou
Chengcheng MA ; Wenyun DAI ; Wei DING ; Fang HU ; Hongjie ZHOU
Chinese Journal of General Practitioners 2015;14(5):345-350
Objective To provide rationales for preventing and treating dyslipidemia by understanding the current status of lipids and related metabolic factors.Methods A total of 2 590 permanent residents aged ≥ 18 years were selected by random cluster sampling from three urbanized communities of Sijiqing Street.And the rate of abnormal lipid metabolism was calculated for different ages and genders.Spearman's correlation analyses were conducted for the levels of total cholesterol (TC),total triglyceride (TG),low density lipoprotein-cholesterol (LDL-C),high density lipoprotein-cholesterol (HDL-C),body mass index (BMI),waist circumference (WC),systolic blood pressure (SBP),diastolic blood pressure (DBP),fasting plasma glucose (FPG),glycated hemoglobin (HbA 1 c) and uric acid (UA) levels.Both x2 test and logisic regression were employed to examine the correlations between dyslipidemia and overweight/obesity,hypertension,hyperglycemia and hyperuricemia.Results ① The total rate of abnormal lipid metabolism was 60.0% (1 554/2 590) with a standardized rate of 57.2%.High TC rate was 42.9% (1 111/2 590) with a standardized rate of 40.5%.And the edge incremental rate was 31.7% (822/ 2 590),the standardized rate 30.5%,the incremental rate 11.2% (289/2 590) and the standardized rate 10.0%.High TG rate was 33.0% (855/2 590) with a standardized rate of 30.7%.And the edge incremental rate was 15.3% (397/2 590),the standardized rate 14.3%,the incremental rate 17.7% (458/2 590) and the standardized rate 16.4%.High LDL-C rate was 30.4% (787/2 590) with a standardized rate of 28.4%.And the edge incremental rate was 22.9% (594/2 590),the standardized rate 21.7%,the incremental rate 7.5% (193/2 590) and the standardized rate 6.7%.Low HDL-C rate was 12.6% (327/2 590) with a standardized rate of 12.8%.The rates of high TC,high TG,high LDL-C,low HDL-C and abnormal lipid metabolism among gender showed no statistically significant difference (P > 0.05);② For both males & females,high TC rate,high TG rate,high LDL-C rate and total rate of abnormal lipid metabolism increased with age (P < 0.01) while low HDL-C rate did not change with age (P > 0.05);③Spearman's correlation analysis showed that the levels of TC,TG and LDL-C were positively correlated with BMI,WC,SBP,DBP,FBG,HbA1C and UA (all P <0.01) while the level of HDL-C had negative correlations with BMI,WC,SBP,DBP,FBG,HbA1 c,and UA (all P < 0.05);④The total rate of abnormal lipid metabolism and various types of abnormal lipid metabolism increased with a rising level of BMI in the upward trend (trend test P < 0.01),various types of abnormal lipid metabolism rate between different groups (elevated & non-elevated) of blood pressure,glucose and uric acid also were statistically significant (all P < 0.05);⑤ Non-conditional logistic regression analysis showed that,after adjusting for age and gender,overweight or obesity and hypertension were risk factors of high TC and high LDL-C;overweight or obesity,hyperuricemia was a risk factor for low HDL-C;overweight or obesity,hypertension,hyperglycemia and hyperuricemia were risk factors for high TG and total abnormal blood lipid.Conclusions Urbanized community groups have a high rate of dyslipidemia.And abnormal lipid metabolism is affected by overweight or obesity,hypertension,hyperglycemia and hyperuricemia.The target population should be regularly monitored and comprehensively controlled.
2.An ERP Study on Visual Illusory Motion
Xiaopan DING ; Xiumei YU ; Jianhong MA ; Huamin HU ; Genyue FU
Space Medicine & Medical Engineering 2006;0(01):-
Objective To explore the neural basis of the visual illusory motion using the event-related potential(ERP).Methods One hundred trials(each duration 2 000 ms)of a visual illusory motion figure,rippling wheat pattern made by Akiyoshi Kitaoka,and a visual static figure made of modified rippling wheat pattern were randomly presented with equal probability.Ten healthy right handed undergraduate students as subjects were asked to judge the stimulus whether motional or not.The EEG was recorded from 128 scalp sites using with electrodes mounted in HydroCel GSN cap(Electrical Geodesics Incorporated,Oregon,USA).Results 1)The C1 component of ERP could be evoked by both visual illusory motion pattern and static pattern in POz.The peak of C1 component was presented about 75 ms after each stimulus.C1 component evoked with visual illusory motion was negative,but it's static pattern to be positive.2)P100 and P200 components could be obviously evoked by both kinds of stimuli,but in O2 the amplitudes of P100 evoked by different stimuli were significant different and in T3 the amplitudes of P200 were significant different too.Conclusion The visual illusory motion is formed at the primary visual cortex.It may be related to the organized mode of perception.
3.Discriptive systematic review for the application of problem-based learning in education of health service management
Ying MA ; Jie SHI ; Run ZHOU ; Zhi HU ; Hong DING
Chinese Journal of Medical Education Research 2017;16(1):22-27
Objective To systematically evaluate the application of problem-based learning (PBL)in the teaching process of health management major in China.Methods Databases including CNKI (1979 to December the 2015),VIP (1989 to December the 2015),Wanfang (1982 to December the 2015) and PubMed were systematically retrieved.Any literature about PBL of health management major was included.Seffdeveloped data extraction form was used for collecting the information.Data were input and analyzed using Excel 2007.Results 15 papers were included in the analysis.The first author mainly came from the northeast region of China (7).Most (10) papers did not get the funding support.No paper was published in the journals contained in the Guide to the Core Journals of China.6 papers of experimental studies compared the performance difference of students of the PBL and lecture-based learning (LBL),which was statistically significant.Conclusion PBL is superior to the LBL.However,due to the large difference in the quality of literature,more studies were needed to determine the effect of PBL.Moreover,we should pay attention to the combination of PBL and LBL.
4.Logistic regression analysis on risk factors of overweight and obesity in preschool children
Xinyan CHEN ; Xiumei XIN ; Xuehan WANG ; Jiangwei MA ; Yang ZHU ; Lanying HU ; Yanan KONG ; Hong DING
Chinese Journal of Health Management 2017;11(2):144-147
Objective To analyze the early risk factors of overweight and obesity in preschool children.Methods Using stratified cluster sampling,the data of 1 335 preschool children's physical examination in High-tech Zone,Urumqi,Xinjiang were collected,and the case group had 153 overweight and obese children,the control group had 1 182 non-overweight and obese children;a case-control study was conducted.The basic data of mothers and the basic data of neonatal birth were analyzed retrospectively.The univariate and unconditional multivariate logistic regression analysis was performed.Results The prevalence of overweight and obesity in preschool children in High-tech Zone in Urumqi was 11.5%.Non-conditional multivariate logistic regression analysis showed that children's age (OR=1.31,95% CI:1.07-1.61),mother's pre-pregnancy BMI (OR=1.11 95 %,CI:1.06-1.17) and whether mothers had gestational hypertension (OR=1.99 95%,CI:1.03-3.85) were the risk factors for overweight and obesity in preschool children (P<0.05).Conclusion In Urumqi high school district preschool children's overweight and obesity rate was high;mothers with high BMI before pregnancy,and those with high blood pressure during pregnancy can increase the risk of overweight and obesity in children,preschool children's increased age may increase the risk of overweight and obesity in children.
5.Progress of Research on Nanopore-macromolecule Detection
Kejian DING ; Haiyan ZHANG ; Honggang HU ; Hongmin ZHAO ; Weijun GUAN ; Yuehui MA
Chinese Journal of Analytical Chemistry 2010;38(2):280-285
After Human Gene Project, studying the kinetics of DNA translocation through a nanopore, and developing a novel fast DNA sequencing technology by using nanopore have become one of the hot in gene-research). This contribution provides an overview of nanopore macromolecular identification,including bionanopore and solid-state nanopore, while the perspective of these research are also summarized.
6.Proteasome inhibitors sensitize ovarian cancer cells to paclitaxel induced apoptosis
Danhui WENG ; Yan LI ; Yanfei KONG ; Liangsheng FAN ; Yi HU ; Xiaohong SONG ; Hui XING ; Shixuan WANG ; Ding MA
Chinese Journal of Obstetrics and Gynecology 2008;43(10):770-773
Objective To explore the semitivity of ovarian cancer cell line SKOV3 to paclitaxel,oroteasome inhibitors,bortezomib,and their combination.Methods The methyl thiazolyl tetrazolitim (MTT)assay was applied to examine the cell viability after treatment.The annexin V-propidium iodide apoptosis detection kit was used to determine the apoptosis rate of different groups.Western blot assay was used to evaluate the expression levels of phosphorylated protein kinase B(AKT)and glycogen synthase kinase-3 beta(GSK-3β).Results In MTT assay,the cell viability ratios of the combination group at serial time points from 12,24,36,48 and 72 hours Were(65.2±5.8)%,(58.3±14.4)%,(35.3±5.0)%,(19.2±1.5)%,and(11.4 ±2.5)%,which were significantly lower than those of the paclitaxel group (P<0.05).After arug treatments,apoptosis rates of paclitaxel group,bortezomib group and the combination group were (14.7±0.5)%,(15.1±0.8)%and(20.5±0.7)%respectively.The rate of the combination group was significantly higher than that of non-treated group and paclitaxel group(P<0.05).Western blot assay showed the changes in expression levels of phosphorylated AKT and GSK-3β,which were decreased significantly after paclitaxd and bortezomib combination treatment [(3.2±0.8)%,(19.3±0.4)%;P<0.05].Conclusions The lethal effect of paclitaxel on tumor cells could be increased significantly by its combination with proteasome inhibitors,bertezomib.The AKT/GSK-3β signaling pathway plays an important role in the molecular mechanism of the combination treatment.
7.Therapeutic effects of B and T lymphocyte attenuator extracellular domain and heat shock protein 70 antigen peptide on cervical cancer in mouse model
Lingfei HAN ; Weimin QIU ; Cheng HU ; Ling WANG ; Hongxia YAO ; Shiyi XIONG ; Meng MENG ; Yong FANG ; Ding MA
Chinese Journal of Obstetrics and Gynecology 2010;45(8):603-608
Objective To investigate the synergistic therapy effects of B and T lymphocyte attenuator(BTLA) extracellular domain in combination with heat shock protein 70 (HSP70)-TC-1 antigen peptide complex on the mouse model of cervical cancer and the related immunological mechanisms. Methods(1)Detecting the BTLA and herpesvirus entry mediator (HVEM) gene expression in the tumor microenvironment after C57BL/6 mice were inoculated with TC-1 tumor cells by realtime PCR; BTLA,HVEM expression on tumor infiltrating lymphocytes cell surface were detected by flow cytometry (fluorescence intensity). (2) According to different treatments, tumor-bearing mice were divided into 5 groups, which was injected with pcDNA3. 1 (empty vector plasmid as control), psBTLA (vector plasmid which expresses BTLA extracellular domain), HSP70 (HSP70-TC-1 cell peptide complex), HSP70 +pcDNA3.1 or HSP70 + psBTLA, respectively. The weight of tumor was recorded. The expression of immunoregulatory genes in tumor microenvironment were detected. The change of lymphocyte amount and cytotoxicity were detected too; lymphocyte proliferation activity was measured by tritium thymidine incorporation assay; the concentration of interleukin (IL) 2 and interferon-γ(IFN-γ) in supernatants of spleen lymphocyte were measured by enzyme-linked immunosorbent assay (ELISA). Results (1) BTLA gene expression was gradually increased after tumor cells inoculation. The highest expression level was 2. 83 + 0. 35 at 14th day, which had statistical significance difference with the 7th day expression of 1.66±0. 25 (P < 0. 05). While HVEM mRNA expression did not change significantly (P > 0. 05). The 7th and 14th day after TC-1 cells inoculation, the average fluorescence intensity of BTLA expression on the surface of tumor infiltrating lymphocytes was 33.5 and 51.8, respectively, in which there was statistically significant difference (P <0. 05); while the difference of HVEM expression was not statistically significant (57. 2 vs 49. 3 ,P >0. 05). (2)The 28th day after inoculation, tumor inhibition rate of HSP70 + psBTLA group was 88%, which was significantly higher than other treatment groups (P <0. 05). The 28th day after TC-1 cells inoculation, combination therapy not only promoted IFN-γ and IL-2 gene (3. 12 + 0.71,3.20 + 0. 62)expression but also reduced transforming growth factor-β (TGF-β), Foxp3 and IL-10 expression (0. 25±0. 03,0. 19 +0. 03,0. 31 +0. 04;P <0. 05). It also promoted CD8+ T lymphocyte infiltration(52 +6)/high power field, cytotoxicity (65.5±2.4) %, proliferation (15.0 × 103 cpm) and cytokine IL-2 , IFN-γsecretion(824±51), (1096±112) pg/ml, which were all significantly higher than other groups (P <0. 05). Conclusion The effect of immunotherapy on tumor can be augmented by the combination of psBTLA which expresses extracellular domain of BTLA and HSP70-TC-1 tumor antigen peptide complex,which could improve the expression of the related immunoregulatory genes to establish a much better microenvironment in favor of anti-tumor immune response against the mice model of the cervix carcinoma.
8.Proteasome inhibitors sensitize ovarian cancer cells to cisplatin
Yan LI ; Danhui WENG ; Fanfei KONG ; Liangsheng FAN ; Yi HU ; Xiaohong SONG ; Hui XING ; Wei WANG ; Ding MA ; Shixuan WANG
Chinese Journal of Obstetrics and Gynecology 2010;45(6):445-448
Objective To explore the sensitivity and the molecular mechanism of cisplatinresistance ovarian cancer cell line C13 to proteasome inhibitors and the combination with cisplatin. Methods After different treatments, methyl thiazolyl tetrazolium (MTT) assay was applied to examine the cell viability, annexin-V/propidium iodide(PI) apoptosis detection kit was used to determine the apoptosis rate of different groups, western blot assay was introduced to evaluate the expression levels of Fas-associated death domain-like interleukin-1 beta converting enzyme inhibitory protein (cFLIPs), and the activity of caspase-8 was examined. Results MTT assay shown that the cell viability ratios of combination group at serial time points from 12, 24, 36, 48, 60, 72 hours were ( 56.0 ± 8.4 ) %, (44.7 ± 7.3 ) %, ( 33.7 ±11.2) %, (27.6 ± 8.0) %, (27. 6 ± 7.6) % and (28.1 ± 2.4) %, which were much lower than those of cisplatin group (P <0.05). After treated for 24 hours, apoptosis rates of cisplatin group, bortezomib group and combination group were ( 16.7 ± 1.7) %, (23.4 ± 2.1 ) % and (26.9 ± 1.6) %, respectively. The rate of combination group was much higher than that of non-treated group and that of cisplatin group or bortezomib group ( P < 0.05 ). Western blot assay showed the changes of expression levels of cFLIPs, which were downregulated seriously after cisplatin, bortezomib or combination treatment [ (43.2 ± 2.3 )% vs( 75.7 ± 3.0)%vs (67.9 ± 2.1 ) %, P < 0.05 ]. The caspase-8 activity of combination group was (5.6 ± 1.6) folds than that of non-treated group, which was higher than those of other two groups [ ( 2.3 ± 1.0) and (4.2 ± 0.9 ) folds,P < 0.05 ]. Conclusions The tumor cell lethal effect of cisplatin could be increase significantly by the combination application of proteasome inhibitors, bortezomib. And the cFLIPs/caspase-8 signaling pathway may be play an important role in the molecular mechanism of the combination treatment.
9.Preparation of human papillomavirus 16 E7 peptide vaccine and its effectiveness in vitro and in vivo
Shujie LIAO ; Xiaoji HU ; Lingfei HAN ; Xuefeng JIANG ; Xi XIA ; Wei WANG ; Yunping LU ; Shixuan WANG ; Ding MA
Chinese Journal of Obstetrics and Gynecology 2009;44(12):903-908
Objective To prepare the human papillomavirus (HPV) 16 peptide vaccine and explore the effect in vitro and in vivo. Methods (1) Prediction of the major histocompatibility complex (MHC) class I restricted T cell epitopes by bioinformatics target at transporter associated with antigen processing (TAP) and named by E7Pa, E7Pb, E7Pc separately. (2)In vivo, the C57BL/6 mice were divided into five groups with same amounts randomly after loading with TC-1 cells (HPV 16 positive tumor cells from C57BL/6 mouse), named as E7Pa + CpG,E7Pb + CpG,E7Pc + CpG (as experiment groups, and added 50 μg/ml E7Pa, E7Pb, E7Pc, respectively), CpG(as positive control group and added Con A with 12 mg/L final concentration) and blank control group (without any treatment). The T cell proliferation was detected by methyl thiazolyl tetrazolium (MTT) assay at different time points;the lactate dehydrogenase (LDH) delivery method was used to test the cytolytie T lymphocyte (CTL) activity of mouse splenic lymphocyte in different ratio of effector cells and target cells (E:T);the related cytokines in tumor tissue and mouse peripheral blood were evaluated by real-time PCR and enzyme-linked immunosorbent assay (ELISA), respectively. The tumor volumes were measured to contrast the therapeutic effect in different groups. Results (1) Three peptide named E7Pa, E7Pb, E7Pc were successfully preparated which had high affinity and specificity. (2) After vaccination of 24, 48, 72,96 hours, MTT results shown that the proliferation rate in E7Pa + CpG group were(131±32)%, (302±15)%, (552±28)%, (731±24)% individually, which were much higher than those in blank control [(72± 15) %, (120 ± 57) %, (176 ±41)%, (288±29)% ;P<0.01], and the other groups i. e. E7Pb + CpG,E7Pc +CpG and CpG groups all proliferated much higher than those in blank control group with statistic signification (P<0. 05), but there was no significant difference between groups(P>0.05);the LDH delivery assay showed that when the ratio of E:T was 100:1, the activity of CTL in the E7Pa + CpG group was most powerful than the other groups with statistic signification (P<0. 01). Meanwhile, the ratio of E:T was concentration-dependent. Compared E7Pb + CpG, E7Pc + CpG or CpG groups with blank control group, there were significantly difference(P<0. 05) ,while there was no significant difference between groups(P >0. 05). The mRNA levels of interferon γ (IFN-γ), interleukin-2 (IL-2) in tumor tissue and peripheral blood in E7Pa + CpG group were significantly higher than those in blank control group (P<0. 01), which was the similar results when compared E7Pb + CpG, E7Pc + CpG or CpG groups with control group (P < 0. 05), and without significant difference between groups(P > 0. 05). The tumor volumes were suppressed obviously in all the experiment groups, especially at the 60th days, the volumes in ETPa + CpG group were much smaller than that in blank control group with statistic signification (P < 0. 01),which was the similar results that E7Pb + CpG, E7Pc + CpG or CpG groups had difference than blank control group with statistic signification (P < 0. 05), and without significant difference between groups(P >0. 05). Conclusion The HPV16 E7 peptide target at TAP combination with CpG as a vaccine could treat effectively the HPV16 E7 positive tumor in experiment.
10.Arthroscopic reconstruction of the anterior cruciate ligament using multi-strands of hamstring tendons
Yong DING ; Yunsheng HU ; Yucai WANG ; Siguo SUN ; Bo LIAO ; Zhao LI ; Lequn SHAN ; Yan CHEN ; Baoai MA
Journal of Chinese Physician 2008;10(6):752-754
Objective To investigate the clinical effect of arthroscopic anterior cruciate ligament(ACL) reconstruction using autologous multi-strands of hamstring tendon.Method From May 2002 to Dec.2006,arthroscopic reconstruction of the anterior cruciate ligament using multi-strands of hamstring tendon was performed on 39 patients.Among them,28 cases were followed up for 7 to 48 months(average 13.5±2.3 months).Result The median Lysholm knee score was improved from 47.3±3.6 to 91.3±2.9 after operation.Conclusion Arthruscopic reconstruction of the anterior cruciate ligament using muhi-strands of hamstring tendons is a good alternative method with minimal invasion and convenient tendon harvesting and fewer complication and reliable clinical effect.