1.Measurement of serum levels of angiogenic factors and inflammatory cytokines in patients w ith moyamoya disease by cytometric bead array
Xiangyang BAO ; Bing ZHU ; Yi LIU ; Bing LIU ; Lian DUAN
International Journal of Cerebrovascular Diseases 2016;24(2):108-113
Objective To detect the serum levels of angiogenic factors and inflammatory cytokines in patients w ith moyamoya disease and explore their roles in the pathogenesis of the disease. Methods The serum levels of vascular endothelial grow th factor (VEGF), angiopoietin -1 (Ang-1), interleukin-8 (IL-8), granulocyte colony stimulating factor (G -CSF), granulocyte-macrophage colony stimulating factor ( GM-CSF) and monocyte chemotactic protein 1 (MCP -1) in 56 patients w ith moyamoya disease and 26 healthy controls w ere measured by cytometric bead array. Results The serum levels of VEGF (2.81 ± 1.77 pg/ml vs.1.98 ±0.66 pg/ml; t = 3.081, P = 0.003 ) and IL-8 (0.89 ±0.69 pg/ml vs.0.63 ± 0.45 pg/ml; t'=2.0371, P < 0.05) in the moyamoya disease group w ere significantly higher than those in the healthy control group, and the serum level of Ang -1 in the moyamoya disease group w as significantly low er than that in the healthy control group (830.01 ±289.29 pg/ml vs.961.65 ±232.87 pg/ml; t =-2.032, P =0.045). Conclusions There are significant difference in serum levels of VEGF, Ang -1 and IL-8 betw een patients w ith moyamoya disease and healthy controls. The results indicate that angiogenic factors and inflammatory cytokines play some roles in the pathogenesis of moyamoya disease.
2.Neutrophil extracellular traps-induced endothelial cell damage in the pathogenesis of dermatomyositis-associated interstitial lung disease
Chinese Journal of Internal Medicine 2017;56(9):650-654
Objective To explore the role of neutrophil extracellular traps (NETs)-induced endothelial cell damage in the pathogenesis of dermatomyositis (DM)-associated interstitial lung disease (ILD).Methods Serum free DNA and krebs von den lungen-6 (KL-6) level were tested in healthy controls,dermatomyositis patients with or without interstitial lung disease (DM-ILD and DM-NILD).Subjects' peripheral blood neutrophils were stimulated with phorbol 12-myristate 13-acetate (PMA),then human umbilical vein endothelial cells (HUVECs) were co-cultured with NETs.The cell morphology was observed by the inverted phase contrast microscope.Cell viability was detected by cell counting kit-8 (CCK8).Results The concentration of serum free DNA in DM patients [(271.27 ± 76.53) μg/L] was significantly higher than that in health control (HC) [(152.89 ± 37.34) μg/L,P < 0.001].Moreover,free DNA level in DM-ILD patients [(302.67 ± 74.15) μg/L] was higher than that in DM-NILD patients [(235.59 ±63.55) μg/L,P <0.005].The concentration of KL-6in DM patients [(3.08 ±2.07) μg/L] was higher than that in HC [(0.87 ± 0.51) μg/L,P < 0.001].Similarly,KL-6 in DM-ILD patients [(4.00 ± 2.44) μg/L] was higher than that of DM-NILD patients [(2.03 ± 0.61) μg/L,P < 0.005].Free DNA and KL-6 were positively correlated (r =0.251,P < 0.05).The survival of endothelial cells in DM group (53 ± 11) % was lower than that of HC group [(70 ± 5) %,P < 0.001].Not surprisingly,the survival of endothelial cells in DM-ILD group (44 ±4) % was lower than that in DM-NILD group [(61 ± 8) %,P < 0.01].Conclusion NETs could play an important role in the pathogenesis of dermatomyositis associated interstitial lung disease,suggesting that NETs may be the potential therapeutic target.
3.Evaluation of degree of hepatocirrhosis with liver cell magong by SPECT
Xiao-Bing LIU ; Yi-Xiang FANG ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(08):-
Objective To evaluate the damaging degree of hepatic cell in the patients with hepatocirrhosis. Methods 25 cases of hepatocirrhosis and 13 eases of normal controls were performed the dynamic imaging with 99mTc-EHIDA.By the three compartmental model configurations,the time-activity curers of the liver cell,and the function indexes liver cell extraction and excretion were calculated.Results The peak time and mean residence time in the hepatocirrhosis group were higher than those in the normal controls(P<0.01).Compared to normal controls, the peak value,index of uptake,take slope,and excretion slope of the hepatocirrhosis were all lower(P<0.01).Con- clusion Liver cell imaging is a better method for reflecting the change of liver cell function,and may be used to analyse the degree of hepatocirrhosis.
4.Experimental study on relationship between pungent-hot herb property express and calmodulin.
Xin LIU ; Yan HU ; Yi-Ran CUI ; Xiao-Qing LIU ; Bing-Hua TANG ; Bing ZHANG
China Journal of Chinese Materia Medica 2014;39(5):873-878
OBJECTIVETo explain the essence of pungent-hot herb property express according to in vivo and in vitro studies on its effect on calmodulin on the base of the observation of the adjustment in hypothalamic-pituitary-gonad axis functions of Aconiti Lateralis Radix Praeparata, Curculiginis Rhizoma, Cinnamomi Cortex and bitter-cold herb Phellodendri Chinensis Cortex in rats under the state of yang deficiency.
METHODThe yang-deficient model was duplicated by intramuscularly injecting hydrocortisone sodium succinate powder injection. After the intervention with Aconiti Lateralis Radix Praeparata, Curculiginis Rhizoma, Cinnamomi Cortex and bitter-cold herb Phellodendri Chinensis Cortex for seven days, TSH, T3, T4, 17-OHCS, COR, T, E2 of hypothalamus-pituitary-target gland axis and other relevant indexes were detected. The calmodulin expression in livers and L02 cells cultured in vitro was detected by using Western blot.
RESULTPungent-hot herbs Aconiti Lateralis Radix Praeparata, Curculiginis Rhizoma, Cinnamomi Cortex can significantly correct indicators of hypothalamic-pituitary-gonad axis and calmodulin, whereas the bitter-cold herb Phellodendri Chinensis Cortex showed no obvious effect.
CONCLUSIONThe pungent-hot herb property expression may be closely related to calmodulin.
Animals ; Calmodulin ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Gonads ; drug effects ; metabolism ; Hypothalamo-Hypophyseal System ; drug effects ; metabolism ; Liver ; drug effects ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Yang Deficiency ; drug therapy ; metabolism
5.The influence of adenovirus latent infection on glutathione and antioxidative enzymes in rat alveolar epithelial cells
Yi FANG ; Bing LI ; Juan CHEN ; Qicai LIU ; Pixin RAN
Chinese Journal of Microbiology and Immunology 2008;28(5):416-420
Objective To analyze the influence of adenovirus latent infection on gamma-glutamylcysteine systhetase(γ-GCS) in rat alveolar epithelial cells. Methods The rat alveolar epithelial cells were stably transfected with the plasmid pE1Aneo and control plasmid. Glutathione(GSH) contents, the activity of γ-GCS were detected in oxidant stress. Then the leuel of protein expression, mRNA expression, and promoter transcriptional activity of glutamate-cysteine ligase catalytic subunit(GCLC) were further detected. Results GSH contents decreased because of adenovirus E1A expression in oxidant stress. E1A repressed the expression and activity of γ-GCS, messenger RNA expression, and promoter transcriptional activity of GCLC. Conclusion Adenovirus E1A decreased the activity of γ-GCS probably by repressed promoter transcriptional activity of GCLC. As a result, GSH contents were downregulated in oxidant stress. Thus Adenovirus latent infection amplified the oxidant/antioxidant imbalance in rat alveolar epithelial cells in oxidants stress, which may be an important mechanism of COPD.
7.Effects of continuons blood purification on patients with severe acute pancreatitis
Limin YANG ; Bing CHEN ; Yi LIU ; Hongye DING ; Liyu LI
Chinese Journal of Emergency Medicine 2012;21(6):633-637
ObjectiveTo explore the therapeutic effect of continuous veno-venous hemofiltration (CVVH) on the treatment of severe acute pancreatitis (SAP).MethodsAll data about forty-five patients with SAP admitted to the intensive care unit (ICU) from June 2005 through June 2010 were reviewed.These 45 patients were randomly (random number ) divided into routine treatment group (n =22 )and comprehensive treatment group ( n =23 ).In control group,patients were rapidly given with a suffficient liquid support,vasoactive drug to increase organ perfusion,trypsin secretion inhibitor,broad-spectrum antibiotics,enteral nutrition with intestine membrane protective agent in early stage.In the comprehensive treatment group,patients received CVVH integrated with routine treatment.On admission and 72 h posttreatment,the scores of acute physiology and chronic health evaluation Ⅱ ( APACHE Ⅱ ) and multiple organ dysfunction syndrome (MODS),and the results of standard bettery of biochemistry tests indcluding blood urea nitrogen (BUN),serum cratinine (Scr),total bilirubin (TBIL),alanine aminotransferase (ALT),amylase (AMS),C-reactive protein (CRP),TNF-α,IL-6,IL-8 were observed.Time of mechanical ventilation support,length of ICU stay,and survival rate were compared between two groups.ResultsOn admission between the two groups,no statistical significance was seen in the APACHE Ⅱ and MODS score,BUN,Scr,TBIL,ALT,AMS,CRP,TNF-α,IL-6,IL-8 (P > 0.05).But APACHE Ⅱ and MODS score were decreased significantly in comprehensive treatment group than in the routine treatment group,as well as the the level of BUN,Scr,TBIL,ALT,AMS,TNF-α,IL-6,IL-8 and CRP after 72h post-treatment (P<0.05 ).In routine treatment group and comprehensive treatment group,the time of respirator intervention and length of stay in ICU were (7.6±3.4) d vs.(11.5±4.7) d,(12.3±7.8) dvs.(17.6±9.2) d respectively,the statistical significance was shown ( P < 0.05 ).Compared to the comprehensive treatment group ( 86.96% ),the survival rate ( 59.09% ) were lower in routine treatment group ( P < 0.05 ).ConclusionsCVVH combined with routine treatment,which can remove inflammatory agents and toxins,maintain homoeostasis,and improve oxygenation,is effective in treatment of SAP and can improve patient survival rate.
8.Adenovirus latent infection enhances the oxidant/antioxidant imbalance in rat alveolar epithelial cells
Yi FANG ; Bing LI ; Juan CHEN ; Qicai LIU ; Pixin RAN
Chinese Journal of Pathophysiology 1989;0(06):-
AIM:To observe the influence of adenovirus latent infection on the oxidant/antioxidant balance in rat alveolar epithelial cells.METHODS:The rat alveolar epithelial cells were stably transfected with the plasmid pE1Aneo and control plasmid pneo.GSH and MDA contents,the activities of major anti-oxidative enzymes including SOD,CAT,GPx,GST and ?-GCS were detected in oxidant stress.RESULTS:Adenovirus E1A expression repressed the activity of ?-GCS,and decreased GSH contents in oxidant stress.As a result,the activity of GPx and GST was decreased.The contents of MDA maintained high in oxidant stress.CONCLUSION:Adenovirus latent infection amplifies the oxidant/antioxidant imbalance in rat alveolar epithelial cells in oxidants stress,and adenovirus E1A protein decreases the activity of ?-GCS,which plays an important role in this process.
9.Effect of Herba Cichorii Extracts in Reducing Serum Uric Acid and Blood Lipid
Yi SA ; Bing ZHANG ; Xiaoqing LIU ; Guohua YE
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(04):-
s:Objective To study the effect of Cichorii Extract(CE)N2 on quail with hyperuricemia and hypertriglyceridemia.Methods Quail models were established by feeding of yeast.Effect of CE N2 on biochemical parameters such as serum uric acid,triglyceride,nitric oxide(NO),xanthine oxidase(XOD),etc.were observed dynamically.Results As compared with the control group,CE N2 in three different dosages decreased serum uric acid,triglyceride and NO;CE N2 in high and low dosage could also lower the serum activity of XOD.Conclusion CE N2 can lower serum uric acid and triglycercide levels in quails with hyperuricemia and hypertriglyceridemia.
10.Analysis of benefit and cost on color ultrasonic devices
Zhongming WANG ; Lijie LIU ; Bing ZHANG ; Miti YI
Chinese Medical Equipment Journal 2004;0(08):-
Objective To find out the benefit and cost of color ultrasonic devices in our hospital after the drop of large equipment examine fee.Methods Data of benefit and cost on 7 color ultrasonic devices in using are collected and analyzed by using Benefit Cost Ratio(BCR) method.Results The higher valuable the equipments are,the more fixed cost they have with lower BCR.Conclusion Buying cheaper equipment is the only way to increase the pure benefit under the precondition of normal diagnosis by devices.