1.Ursolic acid inhibits migration and invasion of human lung cancer A549 cells by targeting miRNA-133a
Chinese Journal of Pathophysiology 2016;32(12):2239-2244
AIM:To investigate the effects of ursolic acid ( UA) on the migration and invasion of human lung cancer cell line A549, and to explore its mechanism .METHODS:The cell viability was detected by MTT assay .The ex-pression of miRNA-133a was detected in the A549 cells treated with UA by real-time PCR.The miRNA-133a mimics and inhibitor were transfected into the A 549 cells, and the transfection efficiency was analyzed by real-time PCR.The cell mi-gratory and invasive abilities were determined by wound healing and Transwell methods , respectively .RESULTS:The via-bility of the human lung cancer A549 cells was significantly inhibited by UA in a dose-dependent manner (P<0.05).IC50 of UA (24 h) for lung cancer A549 cells was 31.04 μmol/L.UA treatment significantly inhibited the migratory and inva-sive abilities of A549 cells in a concentration-dependent manner , accompanied by significantly elevation of miRNA-133a expression.The mimics and inhibitor of miRNA-133a significantly upregulated and downregulated the expression of miRNA -133a in the transfected A549 cells, respectively.In addition, the viability of the A549 cells was decreased extremely after tansfected with the miRNA-133a mimics (P<0.01), so did the results of the cell migration and invasion test .The A549 cells tansfected with the miRNA-133a inhibitor showed an opposite changes of the cell viability , migration and invasion . CONCLUSION:UA inhibited the viability , migration and invasion of lung cancer A 549 cells by elevating the expression of miRNA-133a.
2.The effects of the Seven Acupoints of the Cranial Base on health related quality of life for patients with Parkinson’s disease:a randomized controlled trial
International Journal of Traditional Chinese Medicine 2014;(7):613-616
Objectives To evaluate the effects of“the Seven Acupoints of the Cranial Base”(SACB) in improving quality of life(QOL)of patients with PD. Methods The study Subjects were seventy(70)patients with a diagnosis of Parkinson's disease. The Subjects were divided into two groups, i.e. acupuncture group and drug group.The former was treated by SACB every two days,while the latter took Levodopa and Benserazide Tablet250mg tid. The subjects all received treatment for 6 months. PDQ-39,UPDRSⅡand PDSS were adopted to measure quality of life at 4 time points. Results The total effective rate of the treatment group was 85.71%, the control group was 71.43%. And there was a statistical difference of level distribution between the two groups(P<0.01). The total score of PDQ-39, UPDRSⅡ and PDSS of patients in the treatment group [(20.41± 11.64), (9.09±5.02), (126.31±8.37)]were significantly improved compared with the control group[(27.48± 8.69), (10.29±4.93), (109.94±8.11), P<0.01]. The 5 dimension score of PDQ-39, and the 4 single item score of UPDRSⅡ in the treatment group[(8.60±5.07), (3.20±2.08), (2.34±1.73), (1.20±1.68), (1.63±1.96),(1.31±0.68), (0.77±0.94), (0.91±0.74), (0.77±0.65)]were significantly improved compared with the control group[(11.69±4.11), (5.09±3.72), (5.37±1.99), (2.86±2.33), (2.74±2.08), (1.74±0.98), (1.31±0.93), (1.43±0.78), (1.20±0.68), P<0.01 or 0.05]. Conclusion SACB can markedly and multi-dimensionally improve the QOL of patients with PD and has a higher efficacy than Levodopa and Benserazide Tablet.
3.Effectiveness of integrative medicine for preventing postoperative recurrence of primary hepatic carcinomas: a systematic review.
Zi-yao CHEN ; Jian LIANG ; Xin DENG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(6):671-675
OBJECTIVETo systematically evaluate the effectiveness of integrative medicine (IM) for preventing postoperative recurrence of primary hepatic carcinomas (PHC).
METHODSSuch databases as The Cochrane Library, PubMed, EMbase, China National Knowledge Infrastructure (CNKI), VIP Database, Wan-fang Database were retrieved to collect randomized controlled trials (RCTs) on preventing postoperative recurrence of PHC by IM. The retrieval period started from database establishment to June 2013. Literature screening, data extraction, and quality evaluation were performed by two reviewers strictly according to inclusion criteria. Meta-analysis was conducted using RevMan 5.2 Software.
RESULTSA total of 5 RCTs involving 367 patient cases were included. Results of Meta-analysis showed that the IM group was superior to the Western medicine (WM) group in the 1-, 2-, and 3-year recurrence rates (P < 0.05).
CONCLUSIONIn the prevention of postoperative recurrence of PHC, the effectiveness of IM was more significant, when compared with treatment of Western medicine.
Drugs, Chinese Herbal ; therapeutic use ; Humans ; Integrative Medicine ; Liver Neoplasms ; prevention & control ; Neoplasm Recurrence, Local ; prevention & control ; Postoperative Period ; Randomized Controlled Trials as Topic ; Treatment Outcome
4.A clinical study on the correlation between the unstability of carotid plaques by ultrasonic examination and ischemic cerebrovascular diseases
Jianping WANG ; Liang CHEN ; Xin LI
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective To explore the correlation between the unstability of carotid plaques and ischemic cerebrovascular diseases. Methods 112 cases were divided into 6 types according to their carotid ultrasonic examination, counted the focus of ischemic stroke by CT of each patient, then compared the difference of the quantities a-mong the 6 types. Results There were significant differences between the stable and unstable types in the quantities of focus. Conclusion There is a closed relationship between the unstability of carotid plaques by ultrasonic and ischemic cerebrovascular diseases.
5.Baculoviruses as Vectors in Mammalian Cells
Chang-yong, LIANG ; Xin-wen, CHEN
Virologica Sinica 2007;22(2):148-157
The Baculoviridae are a large family of enveloped DNA viruses exclusively pathogenic to arthropods. Baculoviruses have been extensively used in insect cell-based recombinant protein expression system and as biological pesticides. They have been deomostrated to be safe to mammals, birds and fish. Recently, baculoviruses has been shown to transduce different mammalian cells in spite of the fact that they cannot replicate in mammalian cells (11, 73, 76). This has resulted in the development of baculoviruses as mammalian expression systems and even as vestors for gene therapy.
6.Feasibility of magnetic resonance diffusion-weighted intravoxel incoherent motion imaging and its reproducibility in normal liver
Shilin CHEN ; Xin CHEN ; Lishan ZHONG ; Zaiyi LIU ; Changhong LIANG
Journal of Practical Radiology 2014;(4):623-626
Objective To investigate the feasibility of magnetic resonance diffusion-weighted intravoxel incoherent motion (DW-IVIM)imaging and its reproducibility in normal liver.Methods Thirty-five young healthy volunteers underwent liver DW-IVIM ex-amination twice on a 1 .5 Tesla Philips MR scanner.Parameter maps of D,D* and f were generated by using a manufacturer-sup-plied software.Six Region-of-interests (ROIs)(3 ROIs in left and right liver lobe,respectively)were drawn on three consecutive middle slices,respectively.The average values of D,D* and f were measured and compared between the left and right liver lobe. The reproducibility of D,D* and f measurement were assessed with Bland-Altman method.Results The values of D,D* and f of left liver lobe [D(×10-3 mm2/s):1.250±0.210,D*(×10-3 mm2/s):101.906±15.063 ,f(%):22.954±5.268]were statistically higher than those of right liver lobe[D(×10-3 mm2/s):1.039±0.124,D*(×10-3 mm2/s):100.127±20.757,f(%),18.317± 3.671](D,f,P<0.001,D*,P<0.232-0.605),however ,their reproducibility of left liver lobe [limit of agreement(LOA):22.55%,51.05%,39.3%,respectively]were lower than those of right liver lobe (LOA:20.3%,39.25%,33.9%).The D values had the best reproducibility in both the left and right liver lobe.Conclusion The liver DW-IVIM is feasible.The values of D,D*and f in left liver lobe were higher that those in right liver lobe but with worse reproducibility of measurement.The D value was most reproducible in both liver lobes.
7.Effect of Two Different 1.5T MRI Scanners on the Apparent Diffusion Coefifcient Measurement and its Reproducibility in Diffusion Weighted Imaging of the Liver
Shilin CHEN ; Xin CHEN ; Lishan ZHONG ; Zaiyi LIU ; Changhong LIANG
Chinese Journal of Medical Imaging 2013;(12):916-919
Purpose To investigate the effect of two different 1.5T MRI scanners on the apparent diffusion coefficient (ADC) measurement and its reproducibility in diffusion weighted imaging (DWI) of the liver. Materials and Methods Two groups of volunteers (33 people in each group) underwent liver DWI examination twice by using the same DWI sequence with b value of 0 and 800 s/mm2 on different MRI scanners (1.5T Siemens Espree and 1.5T Philips Achieva). On ADC maps, two region of interests were placed on three central slices of the left and right liver lobes, respectively. The ADC measurements of six region of interests on left and right liver lobes were averaged to represent the mean ADC values of the left and right liver lobe, respectively. The reproducibility of the ADC measurements was assessed by Bland-Altman method. Results The ADC values of the left and right liver lobes measured on Siemens MRI scanner were significantly higher than those on Philips MRI scanner (t=2.045-2.713, P<0.05); on both scanners, the ADC values of the left liver lobe were significantly higher than those of the right liver lobe (t=-10.561--7.263, P<0.001). The Bland-Altman results showed that the reproducibility of ADC measurement was similar on both MRI scanners, and both displayed higher reproducibility of right liver lobe than that of left liver lobe (on Siemens MRI scanner: the agreement were 16.65% and 7.55% for the left and right liver lobe, respectively;and on Philips MRI scanner:16.30%and 7.85%, respectively. Conclusion Different MRI scanners may have influence on ADC values, but does not affect its reproducibility. Therefore, when ADC values obtained on different MR scanners are compared in clinical analysis, this influence should be considered.
8.Baculovirus-mediated Expression of p35 Confers Resistance to Apoptosis in Human Embryo Kidney 293 cells
Jian-hua, SONG ; Chang-yong, LIANG ; Xin-wen, CHEN
Virologica Sinica 2007;22(5):389-396
Baculovirus has many advantages as vectors for gene transfer. We demonstrated that recombinant baculovirus vectors expressing p35 (Ac-CMV-p35) and eGFP (Ac-CMV-GFP) could be transduced into human kidney 293 cells efficiently. The level of transgene expression was viral dose dependent and high-level expression of the target gene could be achieved under the heterogonous promoter. MTT assay suggested that both Ac-CMV-p35 and Ac-CMV-GFP did not have cytotoxic effect on human embryo kidney 293 cells. Cell growth curve showed the Ac-CMV-p35 and Ac- CMV-GFP transduced and non-transduced cells had similar proliferation rate, so baculovirus-mediated p35expression had no adverse effect on cell proliferation. In addition, baculovirus-mediated p35 gene expression protected human embryo kidney 293 cells against apoptosis induced by various apoptosis inducers such as Actinomycin D, UV or serum-free media. These results suggested that the baculovirus vector mediated p35 gene expression was functional and it could be widely used in molecular research and even gene therapy.
9.Posterior cervical open-door expansive laminoplasty with mini-titanium plate:correlation between cervical sagittal alignment and repair effect
Yong GU ; Qiang WANG ; Tianwen XIN ; Huilin YANG ; Liang CHEN
Chinese Journal of Tissue Engineering Research 2016;20(44):6570-6576
BACKGROUND:Posterior cervical open-door expansive laminoplasty is one of the simple and effective methods to treat cervical spinal diseases, has satisfactory results but low complications. However, the imbalance of sagittal plan, loss of lordosis or axial pain is often reported recently. OBJECTVE:To analyze the correlation between cervical sagittal alignment and clinical outcomes after laminoplasty. METHODS:Between January 2011 and June 2015, 122 cases of cervical spinal disease, who were treated with open-door expansive laminoplasty with mini-titanium plate, were retrospectively analyzed. Clinical outcomes were evaluated by Japanese Orthopaedic Association, Neck Disability Index and Visual Analogue Scale. Radiographic results were assessed by C2-7 Cobb angle, C2-7 sagittal vertical axis and C7 slope. The correlation between sagittal alignment and clinical outcomes were analyzed. RESULTS AND CONCLUSION:(1) Al patients were fol owed up for 7-32 months. (2) Japanese Orthopaedic Association, Neck Disability Index and Visual Analogue Scale scores were improved in the final fol ow-up (al P<0.001). No significant difference in upper limb Visual Analogue Scale scores was determined (P=0.142). In the final fol ow-up, C2-7 sagittal vertical axis increased (P=0.036), but neither the C2-7 Cobb angle nor the C7 slope significantly changed (P=0.092, P=0.184). (3) There were no correlations between sagittal alignment parameters (C2-7 Cobb angle, C2-7 sagittal vertical axis and C7 slope) and clinical outcomes (Japanese Orthopaedic Association, Neck Disability Index and Visual Analogue Scale) (al P>0.05). (4) These findings indicated that posterior cervical open-door expansive laminoplasty with mini-titanium plate can significantly improve the neurological function of patients. However, there is no correlation between cervical sagittal alignment and clinical outcomes.
10.Preparation and evaluation of intra-articular injectable sinomenine hydrochloride-loaded in situ liquid crystals.
Yulin CHEN ; Shuangying GUI ; Xin LIANG ; Shengmei WANG ; Xiaojing JIANG
Acta Pharmaceutica Sinica 2016;51(1):132-9
Phytantriol (PT), ethanol (ET) and water were used to prepare in situ cubic liquid crystal (ISV2). The pseudo-ternary phase diagram of PT-ET-water was constructed and isotropic solution formulations were chosen for further optimization. The physicochemical properties of isotropic solution formulations were evaluated to optimize the composition of ISV2. In situ hexagonal liquid crystals (ISH2) were prepared based on the composition of ISV2 with the addition of vitamin E acetate (VitEA) and the amount of VitEA was optimized by in vitro release behavior. The phase structures of liquid crystalline gels formed by ISV2 and ISH2 in excess water were confirmed by crossed polarized light microscopy and small angle X-ray scattering, respectively. Rheological properties of ISV2 and ISH2 were studied by a DHR-2 rheometer. In vitro drug release studies were conducted by using a dialysis membrane diffusion method. Pharmacokinetics was investigated by determination of sinomenine hydrochloride (SMH) concentration in synovial membrane after intra-articular injection of SMH-loaded ISH2 in adjuvant-induced arthritis rats. The optimal ISV2 (PT/ET/water, 64 : 16 : 20, w/w/w) loaded with 6 mg x g(-1) of SMH showed a suitable pH, injectable and formed a cubic liquid crystalline gel in situ with minimum water absorption in the shortest time. The optimal ISV2 was able to sustain the drug release for 144 h. The optimal ISH2 system was prepared by addition of 5% VitEA into PT in the optimal ISV2 system. This ISH2 (PT/VitEA/ET/water, 60.8 : 3.2 : 16 : 20, w/w/w/w) was an injectable isotropic solution with suitable pH. The new ISH2 was able to sustain the drug release for more than 240 h. Local pharmacokinetics study indicated that the retention time and AUC(0-∞) of ISH2 group were increased significantly compared with that of SMH solution group and the AUC(0-∞) of ISH2 group was 6.01 times higher than that of SMH solution group. The developed ISH2 was suitable for intra-articular injection that may apply to patients in the treatment of rheumatoid arthritis.