1.The effect of cementless total hip arthroplasty in the treatment of patients with alcoholic necrosis of femoral head
Xinyong HU ; Yuan LV ; Huaqing YANG
Orthopedic Journal of China 2006;0(18):-
[Objective]To study the mid-term outcomes about cementless total hip arthroplasty in the treatment of patients with alcoholic osteonecrosis of the femoral head.[Method]From March 1997 to June 2002,41patients(47 hips) was treatmented by cementless total hip arthroplasty,the mid-term (equal to or more than 5 years) results were evaluated both clinically and radiographically.Clinical outcomes were evaluated according to Harris evaluation score. Components migration,bone changes around the implant were measured radiologically. Kaplan-Meier analysis was performed to evaluate the surviving rate of the femoral and acetabulum components. End point was radiographical loosening or revision of the acetabular and femoral component for any reason.[Result]Forty-seven hips in 41 patients were followed up at least 5 years. The mean Harris hip score increased from preoperation(42.4?6.4)points to (91.8?4.4) points at the time of final follow up. No component was loose,No component was revised. The focal area of pelvic osteolysis in 2 hips and small focal area of femoral osteolysis in 6 hips were found. The surviving rate of the femoral and acetabulum components,was 1.0(95% confidence interval,0.98 to 1.00).[Conclusion]The mid-term outcomes about cementless total hip arthroplasty in the treatment of patients with alcoholic necrosis of femoral head had been satisfactory. Because the wear of component,osteolysis can not be avoided,clinical and radiographical follow-up for cementless total hip arthroplasty must be carried out persistently.
2.Tegaserod can resume colonic electricity and motion of visceral hypersensitive rat.
Yuan-Jun YIN ; Bin LV ; Wu-Ming YANG
Chinese Journal of Applied Physiology 2008;24(2):174-183
Animals
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Colon
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physiology
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Female
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Indoles
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pharmacology
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Male
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Myoelectric Complex, Migrating
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Rats
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Rats, Wistar
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Viscera
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physiology
3.The protective effects of erythropoietin on cardiomyocytes against hypoxia/reoxygenation injury
Dicheng YANG ; Mingdi XIAO ; Zhongxiang YUAN ; Chengbao LV ; Zhiqian LV ; Liang DUAN ;
Chinese Journal of Emergency Medicine 2006;0(06):-
Objective To explore the protective effects of erythropoietin (EPO) on cardiomyocytes against hypoxia/reoxygenation (HR) injury. Method Isolated and cultured rat eardiomyocytes were subjected to 2-hour hypoxia followed by 1 hour reoxygenation to establish model of HR injury. Cardiomyocytes were randomly divided into 4 groups: sham group, HR group, HR + EPO-treated group (EPO 10 U/ml), and HR + EPO + UO126-treated group (U0126 10?mol/L). The concentration of lactate dehydrogenase (LDH) in culture medium was detected by automatic biochemical analyzer; viability of eardiomyocytes was measured by MTT assay; apoptosis ratio was determined by TUNEL technology and Annexin-V-FITC with flow cytometer (FCM); level of extracellular signal- regulated kinase 1/2 (ERK_(1/2)) and phospho-ERK_(1/2) were measured by Western-blot analysis. Results EPO significantly decreased the leakage of LDH, enhanced activity, reduced apoptosis ratio, and increased level of phospho-ERK_(1/2).However, the effects were blocked by U0126, an inhibitor of MAPK. Conclusions EPO has the protective effects on cardiomyocytes against HR injury possibly via the mechanism of activation of ERK_(1/2) and inhibition of apoptosis.
4.Preparation of PEI-RGD/~(125)I-(α_v)ASODN and its inhibitory effect on invasive ability of HepG2 cells
Haidong CAI ; Yu QIAO ; Xueyu YUAN ; Yuehua YANG ; Shidong YUAN ; Ming SUN ; Zhongwei LV
Chinese Journal of Cancer Biotherapy 2009;16(6):609-613
Objective:To study the effects of ~(125)I-(α_v)ASODN on the in vitro invasive ability of heptocellular carcino-ma cell line(HepG2) through PEI-RGD-mediated receptor process. Methods: Intergrin α_v-specific antisense oligonucle-otide was labeled with ~(125)I, and PEI-RGD/~(125)I-(α_v)ASODN complex was prepared by combining ~(125)I-(α_v)ASODN with polyethyleneimine derivative PEI-RGD. PEI-RGD/~(125)I-(α_v)ASODN complex was transferred into HepG2 cells through the receptor-mediated process. The effect of PEI-RGD/~(125)I-(α_v)ASODN complex on the invasive ability of HepG2 cells was examined by Boyden chamber invasive assay. Results: (1) The labeling yield and radiochemical purity of ~(125)I-(α_v) ASODN were(73.78±4.09)% and(96.68±1.38)%, respectively, and the labeled compound had a good stability in vitro after 48 h at 37℃; (2) The ability of HepG2 cells to uptake PEI-RGD/~(125)I-(α_v)ASODN reached its peek ([12.77±0.85] % ) when PEI-RGD/~(125)I-(α_v)ASODN was at 4 μl/2 μg ([12.77±0.85] %), and then gredually decreased thereafter. So the dosage of PEI-RGD/~(125)I-(α_v)ASODN for the following experiment was chosen as 2 μl/1 μg; (3) The invasive capacity of HepG2 cells was significantly reduced in PEI-RGD/~(125)I-(α_v)ASODN group compared with those in other experiment and control groups (P <0.01 ). Conclusion: ~(125)I-(α_v)ASODN mediated by PEI-RGD can effectively inhibit the invasive capacity of HepG2 cells.
5.Effect of vasoactive intestinal peptide (VIP) on the content of IL-17A in the brain tissue of rats with experimental autoimmune encephalomyelitis (EAE)
Yuan YANG ; Zhengzhou YUAN ; Zhiyu LV ; Shujiang ZHANG ; Xiaohong LI ; Zuoxiao LI
Chinese Journal of Comparative Medicine 2016;26(10):32-35,68
Objective To explore the effect of vasoactive intestinal peptide (VIP) on the content of IL-17A in the brain tissue of rat models of experimental autoimmune encephalomyelitis ( EAE) .Methods Sixty healthy female Wistar rats were randomly divided into normal control group, EAE control group, low-dose VIP group and high-dose VIP group. Ten healthy guinea pigs were used to prepare anti-IL-17A antibody.Myelin basic protein ( MBP) +complete adjuvant ( CFA) were used to establish the EAE model.Since the first day of modelling, the low-dose and high-dose VIP groups received intraperitoneal injection of VIP 4 nmol/kg (0.2 mL) and 16 nmol/kg (0.8 mL), respectively, every other day for 10 consecutive days.The normal control group and EAE group were injected with 0.8 mL saline instead of VIP.The incubation period, progression and the peak of neurological dysfunction scores ( NDS) of the rats were recorded.The levels of IL-17A in the brain tissue was determined by ELISA assay, and the GFAP+astrocyte activation in brain at morbidity peak in the rats was examined using anti-GFAP ( glial fibrillary acidic protein) antibodies.Results The incubation period were extended, the progression period was shortened and the peak neuological dysfunction score ( NDS) was decreased in the VIP-treated groups, in a dose-response relationship.The cytokine levels of IL-17A and the astrocyte activation degree in brain tissue were reduced in each VIP dose group, in a dose-response relationship.Conclusions VIP exerts therapeutic effect on experimental autoimmune encephalomyelitis through lowering the IL-17A content and inhibition of astrocyte activation in the brain tissue.
6.Advance in studies on effective components in wheat bran and their pharmacological activities.
Yi ZHANG ; Yu LI ; Jian WANG ; Ya-Li YANG ; Lv-Jiang YUAN
China Journal of Chinese Materia Medica 2014;39(2):175-180
Wheat bran, as the testa of wheat, has a long history of medication. Modern studies have discovered that wheat bran contains dietary fiber, phenolic compounds, proteins, vitamins, minerals and many other compounds, and boasts wide pharmacological activities such as blood glucose reduction, hypertension reduction, lipid reduction, anti-oxidation, anti-bacteria, anti-inflammatory, antivirus, prevention of colon cancer and mutations, immunomodulation and adsorption of heavy metals. With great development and utilization values, wheat bran has long attracted wide attention from Chinese and foreign scholars. The paper summarizes the latest advance in domestic and foreign studies on effective components in wheat bran and their pharmacological effect, and gives a brief introduction of the limiting factors in the comprehensive development and utilization of wheat bran, in order to provide new preference for the development and utilization of abundant wheat bran resources in China.
Animals
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Dietary Fiber
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analysis
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pharmacology
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Humans
7.The effect of single anterior approach for pinching cervical spondylotic myelopathy
Ying ZHANG ; Xinwei WANG ; Huajiang CHEN ; Lili YANG ; Shengming XU ; Bitao LV ; Jing ZHANG ; Wen YUAN
Chinese Journal of Orthopaedics 2012;32(8):714-720
Objective To investigate effect of single anterior decompression and fusion for pinching cervical spondylosis myelopathy.Methods 82 patients with pinching cervical spondylosis myelopathy,treated with single anterior decompression and fusion,were analyzed,including 43 males and 39 females,with an average age of 54.4 years (range,33-79 years).Occupying rate,anterior occupying rate and posterior occupying rate were measured on pre- and post-operative midsagittal MRIs.Multiple regression analysis was performed between preoperative occupying rate,intervertebral space height,postoperative imaging changes and neural function recovery.Results All patients were followed up for an average of 25.8 months (range,9-72 months).Significant differences were found between pre- and postoperative Japanese Orthopaedic Association (JOA) scores,anterior occupying rate,posterior occupying rate,and intervertebral space height,respectively.Pre- and post-operative posterior occupying rate was averagely 29.0%±10.5% and 19.9%+11.6%,respectively,and improvement rate of posterior occupying rate was 9.0%±6.1%.Regression analysis found that preoperative intervertebral space height did not relate to posterior occupying rate,while preoperative posterior occupying rate related to improvement rate of posterior occupying rate.JOA scores improved significantly after operation in patients with preoperative posterior occupying rate between 20% and 40%.However,the decompression results were poor in patients with preoperative posterior occupying rate ≥40%.Conclusion Anterior decompression and fusion can achieve satisfactory results in patients with pinching cervical spondylotic myelopathy.For patients with preoperative posterior occupying rate between 20% and 40%,the decompression results are better.
8.Preparation and Application of Immunoaffinity Column for Multi-mycotoxins
Tingting YANG ; Yi LV ; Dongsheng ZHANG ; Ye TANG ; Yi YUAN ; Haitao ZHANG ; Haifeng WANG
Chinese Journal of Analytical Chemistry 2016;(8):1243-1249
The three-in-one immunoaffinity column ( IAC ) for the determination of aflatoxin B1 ( AFB1 )-zearalenone (ZEN)-deoxynivalenol (DON) was prepared with rProtein A-sepharose 4B as the column matrix. The comprehensive performance ( such as nonspecific adsorption, column blank, column capacity, column efficiency and sample standard addition recovery rate) was evaluated and investigated. The results showed that, the column capacities of AFB1 , ZEN, DON were 295 ng per 0. 25 mL gel, 905 ng per 0. 25 mL gel, 2342 ng per 0. 25 mL gel, respectively, and the column blank was 0. The average recoveries of AFB1 , ZEN and DON were 97. 4%, 98. 0% and 98. 4%, respectively. By optimizing conditions, the samples were extracted using the mixture of methanol and water (80:20, V/V), and diluted with phosphate buffered saline (contain 0. 1% Tween-20, PBST). The detection results of FAPAS (Food Analysis Performance Assessment Scheme) by different batch three-in-one columns were close to the target value. The prepared three-in-one immunoaffinity column which could take the place of conventional single immunoaffinity column was able to meet the requirement for treatment of food and feed samples, and lay a foundation for one step enrichment, purification and detection of multi-mycotoxins.
9.Association of peroxisome proliferators-activated receptor-γ coactivator 1 Gly482Ser with apolipoprotein E and the longevity and metabolic traits of Hans in Guangxi Yongfu
Liang SUN ; Chenguang ZHENG ; Zeping LV ; Caiyou HU ; Zezhi HUANG ; Qinghua LIANG ; Shaoke CHEN ; Ke CHEN ; Xin FAN ; Yuan LV ; Ze YANG
Chinese Journal of Geriatrics 2013;(3):300-304
Objective To explore the association of peroxisome proliferators-activated receptor-γ coactivator-1 (PPARGC1) Gly482Ser with apolipoprotein E (ApoE) variations in longevity (aged above 90 yrs) Hans in Guangxi Yongfu and to explore the potential association between the variations and metabolic traits.Methods Based on our survey in Guangxi Yongfu in 2008-2011,212 elderly cases (aged 90~105 years) were included as longevity group and 207 cases without longevity history were included as control group.By household survey,we collected the longevity related parameters,blood glucose,blood lipid,blood pressure and other related metabolic traits.Peripheral blood was collected to extract DNA,the gene variations of Gly482Ser and ApoE were genotyped,and the database with genome and traits information were set up.By univariate analysis and multivariate genetic statistical analysis,the association between the variations and longevity and metabolic traits was assessed.Results Compared with the control group,the levels of fasting blood glucose,total cholesterol and low density lipoprotein were lower in the longevity group.Gly482Ser was genotyped in all samples and fully fulfilled the Hardy Weinberg equilibrium.After the Bonferroni correction,recessive model failed to find association between GG genotype and longevity.Stratified analyses by ApoEε4 allele revealed that,in the subgroup with no ApoEε4,PPARGC-1 GG genotype was positively associated with longevity in the recessive model,even after Bonferroni correction (OR =1.72,P<0.05).In addition,longevity group with Gly482Ser GG genotype seemed to have relativelower fasting blood glucose (P < 0.05) and higher high density lipoprotein levels (P < 0.05).Conclusions Longevity Hans in Guangxi Yongfu preserve better metabolic state compared with the control group.GG genotype of Gly482Ser in PPARGC-1 is positively associated with longevity,which depends on not carrying the risk allele of ApoE ε4.
10.UPLC fingerprint spectra for discrimination of Aucklandiae radix and Vladimiriae radix.
Lu-Yang LV ; Ji-Zhong ZHANG ; Zhi-Feng ZHANG ; Yuan LIU ; Rui ZENG ; Jian-Mei LU ; Huan-Ming REN
China Journal of Chinese Materia Medica 2014;39(14):2699-2703
It's difficult to identify Aucklandiae Radix and Vladimiriae Radix because of their similar composition. In this paper, UPLC method was used to establish their UPLC fingerprint to identify them with the mobile of acetonitrile -0. 05% phosphoric acid water solution by gradient elution at the detection wavelength of 238 nm. Clustering analysis and principal components analysis showed that Vladimiriae Radix was significantly different from Aucklandiae Radix. Eight common peaks and twelve common peaks were defined respectively in Aucklandiae Radix and Vladimiriae Radix herbs by fingerprint analysis. Six of them were identified as syringoside, chlorogenic acid, isochlorogenic acid A, isochlorogenic acid B, costunolide and dehydrocostuslactone by comparing with standard references. There are four peaks in all of Vladimiriae Radix samples and in none of Aucklandiae Radix samples. So UPLC fingerprint can be used to identify these two herbs.
Asteraceae
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chemistry
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classification
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Chromatography, High Pressure Liquid
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Cluster Analysis
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Drugs, Chinese Herbal
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analysis
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chemistry