1.Investigation on MR diffusion tensor imaging of non-pyramidal tracts in patients with amyotrophic lateral sclerosis
Yanwei XU ; Bingdi XIE ; Hui ZHAI
Journal of Clinical Neurology 1995;0(04):-
Objective Investigate MR resonance diffusion tensor im-aging (DTI) characteristics of non-pyramid tracts in the patients with amyotrophic lateral sclerosis(ALS). Methods 21 patients with ALS were served as case group.20 healthy volunteers were served as healthy controls. All subjects underwent a DTI sequence, chose region of interest (ROI) to measure fractional anisotropy (FA) and mean diffusivity (MD).Results In case group, FA decreased on the splenium of corpus callosum (0.73?0.087)(u=-2.004,P
2.Peroxisome proliferator-activated receptor γ nuclear translocation induced by focal cerebral ischemia-reperfusion in rats
Li SUN ; Yanwei XU ; Hao LIANG ; Guomin SUN ; Yan CHENG
Chinese Journal of Neurology 2010;43(7):512-515
objective To examine nuclear transIocation of peroxisome proliferator-activated receptor γ(PPARγ)in rats following focal cerebral ischemia/reperfusion(I/R),and to explore the significance of altered PPARγ,nuclear translocation in ischemic brain injury.Methods Healthy adult male SD rats underwent 60-min cerebral artery occlusion followed by reperfusion of 4,8,or 24 h,respectively.The cytoplasmic-to-nuclear shuttling of PPARγ was characterized by Western blot,immunohistochemical and immunofluoreseence staining.The effects of PPARγ agonist rosiglitazone (Ros) and antagonist GW9662 on I/R-induced PPARγ nuclear translocation were also examined in the present study. Furthermore,TTC staining war adopted to determine the change in cerebral infarction volume. Results (1)Western blot analysis revealed an increase of PPARγ in the nucleus and a simultaneous reduction in the cytosol following ischemia and reperfusion for 4 h(tcytosol=9.03,tmuclear=27.19,P=0.00).Prolonged the reperfusion further enhanced this I/R induced PPARγ translocation in a time-dependent manner.Using immunohistochemistry and immunofluorescence,nuclear PPAR γ positive staining increased from 48.3%in the sham control to 80.3% following ischemia and reperfusion for 24 h.(2)Western blot analysis revealed that PPARγ agonist Ros further increased I/R-induced nuclear enrichment of PPARγ,whereas PPARγ antagonist GW9662inhibited I/R-stimulated change in PPARγ.(3)When compared to the L/R group using TTC staining,Ros treatment significantly decreased the infarction volume by 48.40%(15.46±4.94 versus 29.96±3.39,t=5.93.P=0.00),whereas GW9662 increased by 58.95%(47.62±4.93 versus 29.96±3.39,t=7.23,P=0.00).Conclusions Cerebral I/R injury induces PPARγ translocation from the cytosol to the nucleus.This change may represent an intrinsic neuroprotective response against brain I/R injury.
3.Effects of an immune-enhancing enteral diet in gastrointestinal cancer patients
Guohao WU ; Hao WANG ; Yanwei ZHANG ; Jianmin XU ; Zhaohan WU ;
Parenteral & Enteral Nutrition 1997;0(01):-
Objectives:To evaluate if the administration of an enteral diet supplemented with glutamine,arginine and ? 3 fatty acids modulate the inflammatory and immune responses and the outcome after surgery. Methods:A prospective,randomized,double blind and clinical trial was performed.Eighty eight patients with gastrointestinal cancer were randomly divided itnto two groups.One group was given an isocaloric and isonitrogenous standard diet and the other was fed with the supplemented diet with glutamine, arginine and ? 3 fatty acids.Feedings were started within 48 hour after operation, and continued until day 8.All variables were measured before operation and on postoperative day 1,4 and 8.Blood was drawn at different time points to assess albumin, prealbumin and transferring.Immune responses was determined by phagocytosis ability,respiratory burst of polymorphonuclear cells, total lymphocytes, lymphocyte subsets, nitric oxide,cytokine concentration,immunoglobins,and inflammatory responses by plasma levels of C reactive protein and prostaglandin E 2. Results:Tolerance of both formula diets was excellent.There were significant differences in the immunological and inflammatory responses between the two groups.In supplemented group,the serum concentrations of IgA,IgG,IgM,phagocytosis and respiratory burst after surgery were higher and C reactive protein level was lower( P
4.Research progress of the patrolling monocytes in tumor
Ping FANG ; Ke XU ; Bin CHEN ; Hong GAO ; Yanwei ZHU
Journal of International Oncology 2017;44(5):366-368
Patrolling monocyte (PMo) is a subset of monocytes.Its main function is patrolling vascular endothelium and removing cellular debris from the microvasculature.Studies have revealed that PMo can inhibit the growth of tumor cells,recruiting NK cells to kill tumor cells.PMo can prevent tumor cells metastasis to the lung,which plays a role of immunosurveillance.PMo may be a target for cancer immunotherapy.
5.Pleiotropic protective effects of peroxisome proliferators-activated receptor γ in intracerebral hemorrhage
Li SUN ; Shanshan CAO ; Yanwei XU ; Yan CHENG
International Journal of Cerebrovascular Diseases 2016;24(3):248-253
Peroxisome proliferators-activated receptor γ (PPARγ) belongs to a nuclear receptor superfamily. Many studies have shown that PPARγ can help to improve the outcome of cerebrovascular disease. PPARγ can reduce inflammatory response, oxidative stress as wel as enhance the hematoma removal abilities of microglia and macrophages, and it plays an important protective role in intracerebral hemorrhage.
6.Clinical effect of argon-helium knife cryoablation combined with radioactive particle implantation in the treatment of non-small cell lung cancer
Feng WU ; Hongwei XU ; Hui GUO ; Hongjun QUAN ; Yanwei GUO
Chinese Journal of Geriatrics 2021;40(2):197-202
Objective:To investigate the clinical application value of argon-helium knife cryoablation combined with radioactive seed implantation in the treatment of non-small cell lung cancer(NSCLC).Methods:A total of 117 patients with NSCLC admitted to Oncology Department of Fifth Affiliated Hospital of Zhengzhou University from January 2015 to January 2017 were included in our study.And they were divided into the combination group(n=63)treated with CT guided argon-helium knife cryoablation combined with radioactive 125I seeds implantation and the control group(n=54)treated only with argon-helium knife ablation.The changes of blood routine indexes, tumor markers, tumor ablation target volume and CT value were observed before and 1, 3, 6 months after treatment.Adverse reactions during treatment and the evaluation results of efficacy were compared between the two groups.Patients were followed up for 24 months to observe the recurrence and survival rates between the two groups. Results:In the combination group, seeds of(12.49±4.91)were implanted, and the X-ray exposure was(123.16±42.75)Gy.There was no significant difference in general clinical data between the two groups before treatment( P>0.05). At 1, 3 and 6 months after treatment, as compared with control group the combination group showed the significantly decreased platelet count( t=3.154, 3.586, 2.233, P=0.027、0.019、0.034), while, there was no significant difference in white blood cell count, red blood cell count and hemoglobin level between the two groups(all P>0.05). The levels of carcinoembryonic antigen(CEA), neuron-specific enolase(NSE)and tumor volume were significantly lower in combination group than in control group at 3 and 6 months after treatment( t3=3.142, 2.926 and 4.281, t6=4.094, 5.382 and 4.535, all P<0.05), showing significant improvements of illness.While, the above levels showed no significant differences at 1 month after treatment between two groups( t=1.065, 1.037, P=0.197, 0.255). At each monitoring time, the CT value of tumor target area showed a steady downward trend( P<0.05). During the treatment, the incidence of thrombocytopenia was higher in the combination group than in the control group(47.6% or 30/63 vs.24.1% or 13/54, χ2=6.935, P=0.008), while there were no significant differences in the incidence of postoperative fever, pneumothorax, myoglobinuria, pain, bleeding and nausea and vomiting between the two groups(all P>0.05). After 6 months of treatment, the remission rate was higher in the combination group(73.0% or 46/63)than in the control group(48.1% or 26/54). The survival time and relapse-free time of the combination group were longer than those of the control group[(21.81±4.31)months vs.(18.93±5.94)months, (20.48±5.76)months vs.(16.93±7.14)months, Log Rank χ2=8.229 and 9.656, P=0.004 and 0.002)]. Conclusions:Argon-helium knife Cryoablation combined with radioactive seed implantation can effectively control the local progression of NSCLC, reduce the risk of tumor recurrence, and has high safety.
7.ECG characteristics of left and right ventricular origin in outflow tract premature ventricular contraction with V3 migration of precordial lead
Chenglong MIAO ; Jue WANG ; Lu XU ; Ru XING ; Yan JIA ; Liu HUANG ; Yanwei WANG ; Suyun LIU
Clinical Medicine of China 2021;37(3):243-249
Objective:To investigate the electrocardiographic characteristics of left and right ventricles origin of premature ventricular contractions(PVCs) during V3 transition of precordial leads, right ventricular outflow tract (RVOT) anterior septum and right coronary sinus (RCC), and RVOT middle-posterior septum and left coronary sinus (LCC).Methods:From January 2017 to September 2019, 91 patients with ventricular extrasystole of outflow tract who had V3 transition in precordial lead and had successful radiofrequency ablation in RVOT anterior septum, middle posterior septum, LCC and RCC were selected for retrospective case control study.The electrocardiography measurements of PVCs were compared between the anteroseptal RVOT group and RCC group, as well as the middle-posterior septal RVOT group and the LCC group, respectively.The measurements included the R-wave amplitude in lead Ⅰ, Ⅱ, Ⅲ and aVF, R amplitude ratio in leads Ⅲ to Ⅱ, Q-wave amplitude in lead aVL and aVR, Q amplitude ratio in leads aVL to aVR, R-wave and S-wave amplitude from leads V1 to V3, the V2S/V3R index, the transition zone index, and the V2 transition ratio.Results:Thirty-six cases originated from the anteroseptal RVOT, and 11 from the LCC.Lead I R-wave amplitude in anterior septal RVOT was higher than LCC group((0.22±0.25) mV vs.(-0.17±0.33) mV; P=0.003). R-wave amplitude in lead Ⅱ was lower than that in the LCC group((1.59±0.35) mV vs.(1.76±0.27) mV; P=0.035). R-wave amplitude in lead aVF was lower compared with the LCC group((1.53±0.35) mV vs.(1.78±0.39) mV; P=0.050). The V2S/V3R index showed a significant difference between these two groups(1.99±0.66 vs.0.76±0.38; P<0.001). The V2 transition ratio also appeared a significant difference between the two groups(0.69±0.43 vs.1.05±0.35; P=0.005). PVCs arose from the middle-posterior septal RVOT in 32 cases, and from the RCC in 12 cases.Compared with RCC group, lead Ⅰ R-wave amplitude showed lower ((0.25±0.31) mV vs.(0.57±0.12) mV; P<0.001); R amplitude ratio in leads Ⅲ to Ⅱ higher (0.89±0.14 vs.0.72±0.18; P=0.002); Q amplitude in lead aVL((0.72±0.24) mV vs.(0.51±0.16) mV; P=0.002)higher, and Q amplitude ratio in leads aVL to aVR higher in the middle-posterior septal RVOT(0.76±0.23 vs.0.50±0.21; P=0.002). Conclusion:Among the cases with lead V3 transition, PVCs originated from the anteroseptal RVOT show significantly different R wave in lead Ⅰ, Ⅱ, aVF, V2S/V3R index, and the V2 transition ratio compared with those from the LCC.The PVCs from the middle-posterior septal RVOT and the RCC have different R wave in lead Ⅰ, R amplitude ratio in leads Ⅱ and Ⅲ, Q amplitude ratio in leads aVL and aVR.Combined with its different characteristics, it can help to identify the origin of left and right ventricles.
8.Effects of Yifei Kangliu Oral Liquid on cell cycle and protein-nucleic acid synthesis of experimental lung cancer
Mingquan HAN ; Jiaxiang LIU ; Hong GAO ; Shanxiang CHEN ; Yanwei ZHU ; Ling XU
Journal of Integrative Medicine 2003;1(3):205-8
OBJECTIVE: To explore the effect of the traditional Chinese medicine Yifei Kangliu (YFKL) Oral Liquid on the proliferation, cell cycle and protein-nucleic acid synthesis of murine Lewis lung cancer cell and human lung adenocarcinoma cell line SPC-A-1. METHODS: The inhibiting rates of tumor growth were calculated by weighing the weight of tumor inoculated in vivo, combined by counting cancer cells in vitro. The ratio of the cell cycle and exponents of DNA, RNA, and protein were measured by flow cytometry (FCM). RESULTS: The inhibiting rate of tumor growth in the treated group with YFKL Oral Liquid was 30.38% (P<0.05). The proportion of cells in S phase of the treated groups with YFKL Oral Liquid was lower than that of the control group. In the group with most significant result, 72% of the cells were stagnated in G0/G1 phase. The inhibiting rates of DNA, RNA and protein in murine Lewis lung cancer were 7.4%, 23.73% and 23.31% respectively. In SPC-A-1 cell line, the inhibiting rates were 9.3%, 10.1% and 14.7% respectively, demonstrating amplified effects on lower levels. CONCLUSION: YFKL Oral Liquid significantly inhibited the proliferation of murine Lewis lung cancer cell and human lung adenocarcinoma cell line SPC-A-1 by blocking the cancer cells entering the proliferative phase resulted from its inhibition of DNA.
9.The relationship between bone mineral density and bone metabolic markers in patients with spine degeneration diseases needing surgery
Xu WANG ; Huiying ZHANG ; Luxin LOU ; Yanwei LYU ; Xinfeng WU ; Jun WU
Chinese Journal of Laboratory Medicine 2016;39(4):267-271
Objective The aims of this study were to evaluate the morbidity of osteoporosis and the relationship between bone mineral density ( BMD ) and bone metabolic markers in the patients with spine degeneration disease needing surgery, at the same time to observe the influence of type 2 diabetes mellitus on bone metabolism and BMD.Methods This retrospective analysis included 139 patients suffered by spine degeneration disease needing surgery from the October 2013 to October 2014 in Beijing Jishuitan Hospital. Lumbar BMD was measured by quantitative computed tomography ( QCT) before surgery.Serum N-terminal propeptide of type I procollagen ( PINP) , βC-terminal cross-linked telopeptide of type I collagen (β-CTX), osteocalcin (OC) , 25-hydroxyvitamin D[25(OH)D], parathyroid hormone (PTH), calcium and phosphorus were quantified simultaneously.The relationship between the results of lumbar BMD measured by QCT and bone metabolic markers was analyzed by partial correlation.The differences of bone metabolic markers among three groups classified according to BMD were performed by one-way ANOVA and analysis of covariance.The influence factors of lumbar BMD measured by QCT were analyzed by multifactor linear regression.T-test was used to analyze the differences of BMD and bone metabolic markers between two groups with and without type 2 diabetes mellitus.Results The average age of 139 patients was(62.74 ± 6.83) years old.Lumbar BMD revealed that the percentage of osteoporosis, osteopenia and normal BMD were 40.2%(56/139) , 43.8% (61/139) and 16% (22/139) separately.The percentage was 47%(66/139) in subjects with 25(OH)D below 30 nmol/L.The percentage of subjects with the concentrations of 25 ( OH ) D between 30-50 nmol/L was 40% ( 55/139 ) , while the percentage of subjects with the concentrations of 25(OH)D between 50-125 nmol/L was only 13% (18/139).Partial correlation analysis revealed that lumbar BMD measured by QCT was negatively correlated with PINP ( r=-0.352, P<0.01) ,β-CTX ( r=-0.356, P<0.01 ) and OC ( r=-0.276, P=0.001 ) with gender and type 2 diabetes mellitus as covariates.Along with the age of patients increasing and BMD reducing, the levels of PINP,β-CTX and OC increased gradually and the differences were statistically significant ( F=11.575, P<0.01;F=11.550, P<0.01; F=9.738, P<0.01).Multiple linear regression analysis revealed that age and PINP were the main factors that influenced the change of BMD in the patients with spine degeneration disease needing surgery (β=-1.863, t=-5.425, P<0.01;β=-0.393, t=-2.061, P=0.041) .Subjects were divided into diabetes group and non-diabetes group according to the clinical diagnosis and whether having abnormal serum glucose.The levels of PINP (36.56 ±14.56 versus 49.51 ±16.68μg/L) ,β-CTX (0.39 ±0.20 versus 0.52 ±0.21 μg/L) and OC (14.21 ±5.13 versus 20.74 ±6.84 μg/L) in serum between two groups had significant differences (t=3.648, P<0.01;t=2.754, P<0.01;t=4.573, P<0.01) .Conclusions There was prevalence of osteoporosis, osteopenia and vitamin D deficiency in the patients with spine degeneration disease needing surgery.The patients with high level of PINP and age were more prone to appear lower BMD which increasing the risk of osteoporosis.The patients combined with type 2 diabetes mellitus had suppressed bone markers which maybe the risk factor, independent of BMD, increasing fracture risk.
10.Expressions of miRNAs related to accelerating senescence in serum of patients with amnestic mild cognitive impairment and analysis on their biological information
Yanwei HUO ; Bing XIE ; Lei JIANG ; Rui ZHANG ; Mei SONG ; Lan WANG ; Xueyi WANG ; Shunjiang XU
Journal of Jilin University(Medicine Edition) 2017;43(2):322-327
Objective:To explore the expressions of miRNAs related to accelerating senescence in serum of the patients with amnestic mild cognitive impairment (aMCI), and to clarify their effects in the pathogenesis of aMIC.Methods:The levels of miRNAs related to accelerating senescence (miR-132, miR-193b, miR-130b, miR-20a, miR-296, miR-329 and miR-206) were measured in the serum of the patients with aMCI (aMCI group,n=66) and healthy controls(control group,n=76) using quantitative real-time PCR(qRT-PCR).The genes targeted by the altered miRNAs were predicted by TargetScan 6.0.DAVID was used to analyze the function of miRNA target genes.The serum levels of brain derived neurotrophic factor (BDNF) and silent in formation regulator 1(SIRT1) were measured by enzyme-linked immunosorbent assay (ELISA) method.Results:The expression levels of miR-206 and miR-132 in serum of the patients in aMCI group were significantly higher than those in control group (P<0.05).BDNF and SIRT1 were both target genes of miR-206 and miR-132.The levels of BDNF (29.50 μg·L-1± 3.13 μg·L-1) and SIRT1 (1.86 μg·L-1± 0.25 μg·L-1) in serum of the patients in aMCI group were both obviously lower than those in control group (BDNF: 32.29 μg·L-1±3.66 μg·L-1;SIRT1: 2.10 μg·L-1± 0.29 μg·L-1, P<0.05).Conclusion:The expression levels of miR-206 and miR-132 in serum of the aMCI patients are significantly up-regulated.Both of them might be involved in the pathogenesis of aMCI through inhibiting the BDNF and SIRT1 expressions.