1.Exploring the significance of NET-1 gene in hepatocellular carcinoma.
Li CHEN ; De-chun LI ; York ZHU
Chinese Journal of Pathology 2005;34(9):596-597
Adult
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Aged
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Carcinoma, Hepatocellular
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metabolism
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pathology
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Female
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Humans
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Liver
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pathology
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Liver Neoplasms
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metabolism
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pathology
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Male
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Middle Aged
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Neoplasm Staging
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Oncogene Proteins
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genetics
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metabolism
2.Heterotopic brain tissue in the orbit.
Chinese Journal of Pathology 2005;34(3):190-191
Brain
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Choristoma
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metabolism
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pathology
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surgery
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Female
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Glial Fibrillary Acidic Protein
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metabolism
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Humans
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Infant
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Neurofilament Proteins
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metabolism
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Orbit
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pathology
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surgery
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Orbital Diseases
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metabolism
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pathology
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surgery
4.Study on HPLC fingerprint of Congrong Zonggan capsule.
Su-De YANG ; Wei WANG ; Jia-Chun LI ; Wei XIAO
China Journal of Chinese Materia Medica 2014;39(20):3955-3957
HPLC fingerprint of Congrong Zonggan capsule was established in order to provide basis for quality evaluation. With acteoside as the reference, HPLC was adopted for fingerprint analysis on Congrong Zonggan capsule. The chromatographic conditions wereas follows. Waters C18 column (4.6 mm x 150 mm, 5 μm) was used, with methylalcohol-0.1% formic acid as the mobile phase for gradient elution at the flow rate of 1.0 mL x min(-1). The detection wavelength was 330 nm, and the column temperature was 30 °C. This method was highly accurate and reproducible. All of the 13 components in tested samples reached the baseline resolved peak, and 15 batches of finished products showed the similarity of above 0.95. The method was accurate and feasible and could be used as a simple and effective method to evaluate the quality of the traditional Chinese medicines.
Capsules
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analysis
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Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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analysis
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Plants, Medicinal
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chemistry
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Quality Control
5.Effect of rehabilitation therapy on automatic nervous system of patients with stroke
De-chun SANG ; Tong LI ; Zhi-ming YUAN ; Shen TIAN
Chinese Journal of Rehabilitation Theory and Practice 2002;8(9):545-546
ObjectiveTo recover the effect of rehabilitation therapy on the automatic nervous system(ANS)of patients with stroke. MethodsThe multiple index measurement was applied to measure ANS after stroke in 31 patients. The therapy of the Bobath,Brunnstrom and Rood were used as the basic methods for 3 months.ResultsThe balance index of the automatic nerve after treatment by the rehabilitation therapy was higher markedly than before(P<0.01).There is a correlativity with recovery of the movement function. Conclusions The rehabilitation can improve the function of automatic nerve.
6.Infliximab versus placebo in rheumatoid arthritis patients receiving concomitant methotrexate:a randomized double blind phase Ⅲ trial in China
Yong HOU ; Feng-Chun ZHANG ; Feng HUANG ; Donghai WU ; Chun-De BAO ; Li-Qing NI ; Chen YAO ;
Chinese Journal of Rheumatology 2003;0(11):-
Objective To evaluate the efficacy and safety of infliximab plus methotrexate combination therpy in Chinese with rheumatoid arthritis patients.Methods This was a double-blind placebo-controlled phaseⅢclinical trial,173 patients who had active rheumatoid arthritis were randomised to placebo(n=86)or infliximab(n=87)group on a background of a stable dosage of methotrexate.Patients were assessed at weeks 0,2,6,14 and 18.Results At week 2,the American College of Rheumatology(20)response criteria,which represent a 20% improvement from baseline,the same results with swollen joint count,tender joint count,du- ration of morning stiffness,VAS score,CRP,ESR were achieved in 52.9% of patients,compared with 14.0% of patients receiving placebo plus methotrexate.A 20% improvement was achieved in 75.9% of infliximab plus methotrexate at week 18,compared with 48.8% of patients on placebo plus methotrexate(P=0.0003).A 50% improvement was achieved in 43.7% of infliximab plus methotrexate at week 18,compared with 25.6% of pa- tients on placebo plus methotrexate(P=0.011).Infliximab was well-tolerated;withdrawals for adverse events as well as the occurrence of serious adverse events or serious infections were similar to those in the placebo group.There was only one case of tuberculosis in the treatment group.Conclusion Treatment with infliximab plus methotrexate is more effective than methotrexate alone in patients with active rheumatoid arthritis.It has rapid onset of effect and the efficacy is persistent.
7.The effect of endostatin mediated by adenovirus on the inflammation and cytokines of arthritis rats
De-Qian MENG ; Yu ZHANG ; Wei-Gan SHEN ; Yong-Ji XUE ; Li-Chun XU ; Jian GU ;
Chinese Journal of Rheumatology 2003;0(12):-
Objective To investigate the effect of recombinant adenovirus mediatied human endostatin (rAD-GFP-ES)on rats with collagen typeⅡinduced arthritis(CIA),and explore the mechanism of inflamma- tion and cytokines inhibition on rats CIA.Methods The rAD-GFP-ES was amplified and purified.The model of rat CIA was induced by intradermal injection of typeⅡcollagen combined with complete Freund's adjuvant(CFA). On the second day after the injection,the therapeutic administration of rAD-GFP-ES(1?10~(11)pfu?kg~(-1)?week~(-1)?4 weeks)were performed to the rats.The mean arthritis index(AI)was scored every week since then.The relative concentrations of ES,IL-I?,TNF-?in sera collected at the fourth week were evaluated by western blotting. Results①The titer of the purified rAD-GFP-ES and rAD-GFP was 6.6?10~(12)pfu/ml and 4.8?10~(12)pfu/ml,re- spectively(A_(260nm)/A_(280nm)>1.3).②The concentration of ES in sera of the group treated with rAD-GFP-ES was 2.4-lold higher compared to the normal group.③The mean arthritis index of the group treated with rAD-GFP- ES was much lower than that of the model group.The administration of rAD-GFP-ES could significantly de- creas the production of IL-1?and TNF-?in sera.Conclusions①The rAD-GFP-ES is efficiently expressed in vivo.②The rAD-GFP-ES has an inhibitory effect on the arthritis index of rat CIA.③IL-1?and TNF-?are involved in the pathogenesis of RA.The rAD-GFP-ES has an inhibitory effect on the expression of IL-1?and TNF-?in rat CIA.
8.Expression of Hypoxia-Inducible Factor-1? in Cultured Cortical Neurons after Hypoxia-Ischemia
li, ZHANG ; li-hua, LI ; yi, QU ; xi-hong, LI ; chun-lei, YANG ; meng, MAO ; de-zhi, MU
Journal of Applied Clinical Pediatrics 2004;0(08):-
Objective To explore the expression of hypoxia-inducible factor-1?(HIF-1?) protein and its mRNA in cultured cortical neurons after hypoxia,ischemia or hypoxia-ischemia(HI) and explore the possibilities of HIF-1? gene therapy in HI neurons.Methods The in vitro models of HI,pure hypoxia and pure ischemia were established using embryonic day 16-18 rats cortical neurons.Immunohistochemical and in-situ hybridization were performed to examine the expression of HIF-1? protein and its mRNA at different reperfusion time points in neurons.Results The expression of HIF-1? protein was very week in normoxic cultured neurons,but was up-regulated while treated with hypoxia and(or) ischemia.HIF-1? expression reached peak at 4 to 8 h after reperfusion with HI,which were statistically significant higher than that at other time points(Pa=0),and decreased gradually at 12 h.Furthermore,HIF-1? protein expression was significantly higher in HI group compared with that in the pure hypoxia or ischemia group(Pa=0).HIF-1? mRNA reached peak immediately after HI,decreased gradually at 2 h,and returned to the baseline at 8 h after reperfusion.Conclusions HIF-1? expression on cortical neurons is regulated differently with hypoxia,ischemia or HI treatment,HIF-1? gene therapy for HI neurons maybe a useful method in the future studies.
9.Influence factors of adjacent segment degeneration after instrumented lumbar fusion.
Chun-de LI ; Zheng-rong YU ; Xian-yi LIU ; Hong LI
Chinese Journal of Surgery 2006;44(4):246-248
OBJECTIVETo investigate the influence factors of adjacent segment degeneration (ASD) after instrumented lumbar fusion.
METHODSThirty-three patients who had undergone an instrumented lumbar fusion from March 1998 to May 2002 were reviewed. The incidence, age, position, radiographic characteristics and clinical manifestations of ASD were studied. Then the relations between "floating fusion" and ASD were compared, the range of fusion and ASD and investigated the incidences of different adjacent segments.
RESULTSThe mean follow-up period for the patients was 4 years and 7 months (24 - 82 months). Adjacent segment degeneration mainly occurred in patients older than 60. Ten patients (10%) were found to have radiographic characteristics of ASD. Nine of the ten patients had ASD at cranial segments. Using "floating fusion" or not did not show difference in the risk of ASD. There was a trend of more ASDs after long-segment fusion than short-segment fusion. As an adjacent segment, L(2)/L(3) had a high risk of ASD, while L(5)/S(1) had a much lower risk.
CONCLUSIONSThe cranial segment has a higher degeneration risk than the caudal segment. If L(2)/L(3) has degenerative appearance and has chance to be the adjacent segment, we'd better fuse it. If there is no evidence of obvious degeneration, L(5)/S(1) should not be fused. During instrumented lumbar fusion, long-segment fusion should be avoided if possible.
Adult ; Aged ; Female ; Follow-Up Studies ; Humans ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Spinal Diseases ; etiology ; Spinal Fusion ; adverse effects ; methods
10.Preparation of curcumin-EC sustained-release composite particles by supercritical CO2 anti-solvent technology.
Wei-li BAI ; Ting-yuan YAN ; Zhi-xiang WANG ; De-chun HUANG ; Ting-xuan YAN ; Ping LI
China Journal of Chinese Materia Medica 2015;40(2):226-230
Curcumin-ethyl-cellulose (EC) sustained-release composite particles were prepared by using supercritical CO2 anti-solvent technology. With drug loading and yield of inclusion complex as evaluation indexes, on the basis of single factor tests, orthogonal experimental design was used to optimize the preparation process of curcumin-EC sustained-release composite particles. The experiments such as drug loading, yield, particle size distribution, electron microscope analysis (SEM) , infrared spectrum (IR), differential scanning calorimetry (DSC) and in vitro dissolution were used to analyze the optimal process combination. The orthogonal experimental optimization process conditions were set as follows: crystallization temperature 45 degrees C, crystallization pressure 10 MPa, curcumin concentration 8 g x L(-1), solvent flow rate 0.9 mL x min(-1), and CO2 velocity 4 L x min(-1). Under the optimal conditions, the average drug loading and yield of curcumin-EC sustained-release composite particles were 33.01% and 83.97%, and the average particle size of the particles was 20.632 μm. IR and DSC analysis showed that curcumin might complex with EC. The experiments of in vitro dissolution showed that curcumin-EC composite particles had good sustained-release effect. Curcumin-EC sustained-release composite particles can be prepared by supercritical CO2 anti-solvent technology.
Carbon Dioxide
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chemistry
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Cellulose
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administration & dosage
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analogs & derivatives
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chemistry
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Curcumin
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administration & dosage
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chemistry
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Delayed-Action Preparations
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Solubility
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Solvents
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Technology, Pharmaceutical