Effect of Danzhijiangtang capsule on monocyte chemoattractant protein-1 mRNA expression in newly diagnosed diabetes subclinical vascular lesions

AIM:To investigate the effect of Danzhijiangtang capsule(DJC) on monocyte chemoattractant protein-1(MCP-1) mRNA expression in newly diagnosed type 2 diabetes mellitus(T2DM) subclinical vascular lesions.METHODS:Sixty-two patients with newly diagnosed T2DM subclinical vascular lesions were randomly divided into a control group and treatment group of 31 cases each.Oral antidiabetic therapy with routine western medicine was conducted in both groups,and the treatment group was additionally treated with DJCs.The treatment course for both groups was 12 wk.Before and after treatment,the total efficiency and traditional Chinese medicine(TCM) syndrome score were calculated.The fasting plasma glucose(FPG),2-h plasma glucose(2hPG),fasting insulin(FINS),insulin resistance index(IRI),hemoglobin(Hb)A1c,blood lipids,and hemorheology indices were determined.In addition,the levels of vascular endothelial growth factors including thrombomodulin(TM),von Willebrand factor(vWF),P-selectin and MCP-1 mRNA were determined.RESULTS:After 12 wk of treatment,the TCM syndrome score was significantly decreased compared to before treatment in both groups.After treatment,FPG,2hPG,HbA1c,FINS,IRI,total cholesterol,triglycerides,low-density lipoprotein,high-density lipoprotein,whole blood low shear specific viscosity,plasma specific viscosity,TM,vWF,P-selectin and MCP-1 mRNA were significantly improved compared to before treatment in both groups.After treatment,the total efficiency and TCM syndrome score in the treatment group were better than in the control group.FINS,IRI,whole blood high shear specific viscosity,plasma specific viscosity,TM,vWF,P-selectin and MCP-1 mRNA level in the treatment group were significantly reduced after treatment compared with control group.CONCLUSION:DJCs are efficacious in supplementing qi,nourishing yin and invigorating blood circulation,and upregulate MCP-1 mRNA expression in patients with T2DM subclinical vascular lesions.

Molecular detection of monocyte chemotactic protein-1 polymorphism in spontaneous bacterial peritonitis patients

AIM: To investigate the association of the functional monocyte chemotactic protein-1(MCP-1) promoter polymorphism(A-2518G) with spontaneous bacterial peritonitis(SBP).METHODS: Fifty patients with post-hepatitis C liver cirrhosis and ascites were categorized into two groups; group Ⅰ included 25 patients with SBP and group Ⅱ included 25 patients free from SBP. In addition, a group of 20 healthy volunteers were included. We assessed the MCP-1 gene polymorphism and gene expression as well as interleukin(IL)-10 levels in both blood and ascitic fluid. RESULTS: A significant MCP-1 gene polymorphism was detected in groups Ⅰ and Ⅱ(P = 0.001 and 0.02 respectively). Group Ⅰ was associated with a significantly higher frequency of AG genotype [control 8(40%) vs SBP 19(76.0%), P < 0.001], and group Ⅱ was associated with a significantly higher frequency of GG genotype when compared to healthy volunteers [control 1(5%) vs cirrhotic 16(64%), P < 0.001]. Accordingly, the frequency of G allele was significantly higher in both groups(Ⅰ and Ⅱ) [control 10(25%) vs SBP 27(54%), P < 0.001 and vs cirrhotic 37(74.0%), P < 0.001, respectively]. The total blood and ascetic fluid levels of IL-10 and MCP-1 gene expression were significantly higher in group Ⅰ than in group Ⅱ. Group Ⅰ showed significant reductions in the levels of MCP-1 gene expression and IL-10 in the whole blood and ascetic fluid after therapy. CONCLUSION: MCP-1 GG genotype and G allele may predispose HCV infected patients to a more progressive disease course, while AG genotype may increase the susceptibility to SBP. Patients carrying these genotypes should be under supervision to prevent or restrict further complications.

Effects of Simvastatin on NF-κB-DNA Binding Activity and Monocyte Chemoattractant Protein-1 Expression in a Rabbit Model of Atherosclerosis

To observe the effects of simvastatin on nuclear factor kappaB （NF-kB）-DNA binding activity and on the expression of monocyte chemoattractant protein-1 （MCP-1） in atherosclerotic plaque in rabbits and to explore the anti-atherosclerotic properties beyond its lipid-lowering effects. Thirty-six New Zealand male rabbits were randomly divided into low-cholesterol group （LC）, high- cholesterol group （HC）, high-cholesterol＋ simvastatin group （HC＋S） and then were fed for 12 weeks. At the end of the experiment, standard enzymatic assays, electrophoretic mobility shift as- say （EMSA）, immunohistochemical staining, and morphometry were performed to observe serum lipids, NF-kB-DNA binding activity, MCP-1 protein expression, intirna thickness and plaque area of aorta respectively in all three groups. Our results showed that the serum lipids, NF-kB-DNA binding activity, expression of MCP-1 protein, intima thickness, and plaque area of aorta in the LC and HC＋S groups were significantly lower than those in the HC group （P〈0.05）. There was no significant difference in the serum lipids between the LC and HC＋S groups （P〉0.05）, but the NF-kB-DNA binding activity, the expression of MCP-1 protein and the intirna thickness and plaque area of aorta in the HC＋S group were significantly decreased as compared to the LC group （P〈0. 05）. This study demonstrated that simvastatin could decrease atherosclerosis by inhibiting the NF-kB-DNA binding activity and by reducing the expression of MCP-1 protein.

Expression of monocyte chemotactic protein-1/CCL2 in gastric cancer and its relationship with tumor hypoxia

AIM:To investigate the expression and prognostic value of CCL2 in gastric cancer,as well as its relationshipwith tumor hypoxia.METHODS:Tumor tissues from 68 gastric cancer patients(GC)were analyzed,and the expression of CCL2and hypoxia-inducible factor 1 alpha(HIF-1α)in tumortissues was detected by immunohistochemistry.Statistical evaluations that were used included univariate logrank tests of Kaplan-Meier curves and multivariate Coxregression model analysis.RESULTS:CCL2 was highly expressed in 66.2%(45/68)of gastric cancer specimens.The distribution of CCL2expression in tumor tissue was consistent with thatof HIF-1α.Patients with high CCL2 expression in GChad a lower overall survival rate[50.6 mo(95%CI:44.44-56.93)vs 64.6 mo(95%CI:60.27-68.94),P=0.013].CONCLUSION:CCL2 expression correlates closely with HIF-1αexpression in gastric cancer.CCL2 may be an independent prognostic marker for GC.

Plasma monocyte chemotactic protein-1 remains elevated after minimally invasive colorectal cancer resection

AIM: To investigate plasma Monocyte Chemotactic Protein-1 levels preoperatively in colorectal cancer(CRC) and benign patients and postoperatively after CRC resection.METHODS: A plasma bank was screened for minimally invasive colorectal cancer resection(MICR) for CRC and benign disease(BEN) patients for whom preoperative, early postoperative, and 1 or more late postoperative samples(postoperative day 7-27) were available. Monocyte chemotactic protein-1(MCP-1) levels(pg/mL) were determined via enzyme linked immuno-absorbent assay. RESULTS: One hundred and two CRC and 86 BEN patients were studied. The CRC patient's median preoperative MCP-1 level(283.1, CI: 256.0, 294.3) was higher than the BEN group level(227.5, CI: 200.2, 245.2; P = 0.0004). Vs CRC preoperative levels, elevated MCP-1 plasma levels were found on postoperative day 1(446.3, CI: 418.0, 520.1), postoperative day 3(342.7, CI: 320.4, 377.4), postoperative day 7-13(326.5, CI: 299.4, 354.1), postoperative day 14-20(361.6, CI: 287.8, 407.9), and postoperative day 21-27(318.1, CI: 287.2, 371.6; P < 0.001 for all). CONCLUSION: Preoperative MCP-1 levels were higher in CRC patients(vs BEN). After MICR for CRC, MCP-1 levels were elevated for 1 mo and may promote angiogenesis, cancer recurrence and metastasis.

Malarial pigment enhances heat shock protein-27 in THP-1 cells:new perspectives for in vitro studies on monocyte apoptosis prevention

Objective:To investigate the effect of malarial pigment(hemozoin,HZ) on expression of heat shock proteins(HSPs) and cell viability in human monocytes by using a stable cell line(THP-1 cells).Methods:THP-1 cells were fed with native HZ or treated with pro-apoptotic molecule gliotoxin for 9 h.Thereafter,the protein expression of HSP-27 and HSP-70 was evaluated by western blotting.Alternatively,HZ-fed cells were cultured up to 72 h and cell viability parameters(survival,apoptosis and necrosis rates) were measured by flow cytometric analysis. Results:HZ increased basal protein levels of HSP-27 without altering those of HSP-70 in THP-1 cells,and promoted long-term cell survival without inducing apoptosis.As expected,gliotoxin inhibited HSP-27 protein expression and promoted long-term cell apoptosis.Conclusions: Present data show that HZ prevents cell apoptosis and enhances the expression of anli-apoptotic HSP-27 in THP-1 cells,confirming the previous evidences obtained from HZ-fed immunopurified monocytes.Since the use of a stable cell line is pivotal to perform HSP-27 silencing experiments, monocytic THP-1 cells could be a good candidate line for such an approach,which is heavily required to clarify the role of HSP-27 in survival of impaired HZ-fed monocytes during falciparum malaria.

Expression of Monocyte Chemoattractant Protein-1 in Monocytes and Effects of Native and Oxidized Very Low Density Lipoproteins

Monocyte chemoattractant protein-1(MCP-1), a potent chemoattractant, is thought to play an important role in migration of monocytes into atherosclerotic lesions. The present study was designed to investigate the capacity of human peripheral blood monocytes to express MCP-1 and effects of native very low density lipoprotein (VLDL) and oxidized VLDL(OX-VLDL) on the expression. The total RNA was extracted from cultured monocytes, which were exposed to VLDL and OX-VLDL, and the media conditioned by monocytes were collected. MCP-1 mRNA expression was examined by Northern blot analysis. MCP-1 protein in conditioned media was determined by using sandwich ELISA. The results showed that monocytes can express MCP-1 after a 24 h incubation at 37℃，and the expression was markedly increased by a exposure to OX-VLDL, whereas the expression was slightly increased when exposed to VLDL. It suggests that the capacity of monocytes to produce MCP-1 that recruits and activates circulating monocytes may be of considerable importance in atherogenesis, and oxidation of VLDL enhances its potential to promote atherogenesis.

Monocyte chemotactic protein-1 gene polymorphism and spontaneous bacterial peritonitis

I read with great interest the article by Gbele et al published in issue 44 of World J Gastroenterol 2009.The results of their study indicate that-2518 Monocyte chemotactic protein-1(MCP-1)genotype AA is a risk factor for spontaneous bacterial peritonitis in patients with alcoholic cirrhosis.However,there are some items that need to be discussed.

Correlation of serum cyclophilin A and monocyte chemoattractant protein-1 levels with carotid atherosclerosis in patients with acute cerebral infarction

Objective:To study the correlation of serum cyclophilin A (CyPA) and monocyte chemoattractant protein-1 (MCP-1) levels with carotid atherosclerosis in patients with acute cerebral infarction.Methods: 106 patients with acute cerebral infarction who were hospitalized in our hospital between July 2011 and August 2015 were selected as observation group, and 50 cases of healthy persons who received physical examination in our hospital during the same period were selected as normal control group. The serum CyPA and MCP-1 contnets in two groups were determined. According to the median of CyPA and MCP-1 contents in observation group, they were divided into high CyPA group and low CyPA group as well as high MCP-1 group and low MCP-1 group, 53 cases in each group. Contents of lipid metabolism indexes and carotid atherosclerosis illness-related indicators were compared between acute cerebral infarction patients with different CyPA and MCP-1 contents.Results:Serum CyPA and MCP-1 contents in observation group were significantly higher than those in control group. Serum TC, LP(a) and LDL-C contents in high CyPA group and high MCP-1 group were higher than those in low CyPA group and low MCP-1 group while HDL-C contents were lower than those in low CyPA group and low MCP-1 group. Serum CysC, Hcy and UA contents in high CyPA group and high MCP-1 group were higher than those in low CyPA group and low MCP-1 group.Conclusion: Serum CyPA and MCP-1 contents in patients with acute cerebral infarction are higher than those in normal population, and the contents of CyPA and MCP-1 are positively correlated with the degree of carotid atherosclerosis.

The enhancement of astrocytic-derived monocyte chemoattractant protein-1 induced by the interaction of opiate and HIV tat in HIV-associated dementia

HIV-associated dementia(HAD)is a public health problem and is particularly prevalent in drug abusers.The neuropathogenesis of human immunodeficiency virus(HIV)infection involves a complex cascade of inflammatory events,including monocyte/macrophage infiltration in the brain,glial immune activation and release of neurotoxic substances.In these events,astrocytic-derived monocyte chemoattractant protein-1(MCP-1)plays an important role,whose release is elevated by HIV transactivator of transcription(HIV tat)and could be further elevated by opiates.This review will also consider some critical factors and events in MCP-1 enhancement induced by the interactions of opiate and HIV tat,including the mediating role of mu opioid receptor(MOR)and CCR2 as well as the possible signal transduction pathways within the cells.Finally,it will make some future perspectives on the exact pathways,new receptors and target cells,and the vulnerability to neurodegeneration with HIV and opiates.

Variation of Serum Monocyte Chemoattractant Protein-1 in Patients with Diabetes and Metabolic Syndrome

This study investigated the variation of serum monocyte chemoattractant protein-1（MCP-1） in patients with both diabetes mellitus（DM） and metabolic syndrome（MS）.Based on the International Diabetes Federation（IDF） diagnostic criteria,93 patients enrolled in this study were divided into four groups：normal control（NC）,simple DM,simple MS,and DM plus MS（DM-MS） groups.The main measures included height,weight,waist circumference（WC）,hip circumference,blood pressure,fasting blood glucose,insulin resistance index（HOMA-IR）,serum triglyceride（TG）,HDL-ch,LDL-ch,and MCP-1.The results showed that the serum levels of MCP-1 in the DM-MS group were significantly increased as compared with those in the DM and MS groups（P0.05）,and the increase in the MCP-1 level in the DM group was much higher than in the MS group（P0.05）.The DM-MS group had the highest HOMA-IR levels,followed by MS,DM and NC groups（P0.05）.Correlation tests showed that the association of MCP-1 with age,HDL-ch,or LDL-ch was insignificant,whereas that of MCP-1 with body mass index（BMI）,waist hip rate（WHR）,WC,systolic blood pressure（SBP）,diastolic blood pressure（DBP）,TG,and HOMA-IR was significantly positive.It was concluded that circulating MCP-1 was substantially increased in patients with both DM and MS as compared with that in the patients with DM or MS alone,and the central obese state may contribute to a more vicious proinflammatory condition and insulin resistance in patients with diabetes.

Monocyte chemoattractant protein-1 plays a key role in type 1 diabetes

Type 1 diabetes is an autoimmune dise as e resulting from the selective destruction of β cells in the pa ncreatic islets. In both human and rodent models of type 1 diabetes, the clinica l disease is preceded by a progressive mononuclear cell invasion of the pancreat ic islets (insulitis). In the early stage of insulitis,the major components are monocyte/macrophages, and the recruitment of mononuclear cells is a critical st ep in the pathogenesis of the type 1 diabetes. Studies have revealed that Monocy te chemoattractant protein-1(MCP-1) specifically recruits monocytes/ macrophag es into pancreas and plays an important role in the development of insulitis and diabetes.

Effect of Llinagliptin on tumor necrosis factor receptor and monocyte chemoattractant protein-1 in patients with diabetic nephropathy

Objective:To explore the effect of Linagliptin on tumor necrosis factor receptor and monocyte chemoattractant protein-1 in patients with diabetic nephropathy.Methods: A total of 98 patients with diabetic nephropathy admitted to the Hospital from January 2017 to September 2018 were enrolled. The patients were divided into two groups according to the random double-blind method, with 49 cases in each group. The control group was treated with Metformin, whereas the experimental group was treated with Linagliptin plus Metformin. After 3 months of continuous treatment, the renal function [urinary albumin excretion rate, 24 h urine protein quantitation and serum creatinine], glycolipids metabolic levels [glycated hemoglobin, fasting blood glucose, total cholesterol and triglycerides], monocyte chemoattractant protein-1, tumor necrosis factor receptor, high-sensitivity C-reactive protein, and adverse reactions were compared between the two groups.Results:After 3 months of treatment, the levels of UAER, 24 h Upor and Scr in the experimental group were shown to be lower than those in the control group, and the difference was statistically significant. After 3 months of treatment, the levels of HbA1c, FPG, TC and TG in the experimental group were shown to be lower than the control group, and the difference was statistically significant. After 3 months of treatment, the levels of MCP-1, sTNFR1 and hs-CRP in the experimental group were lower than those in the control group, and the difference was statistically significant. There was no significant difference in incidence of adverse reactions between the two groups.Conclusion: For patients with diabetic nephropathy, Linagliptin is with higher safety, which can help improve their glycolipids metabolic levels and renal function, reduce the inflammatory response and the levels of MCP-1 and sTNFR1, and yet incur fewer adverse reactions.

Role of monocytes and macrophages in experimental and human acute liver failure

Acute liver failure (ALF) is a devastating clinical syndrome characterised by progressive encephalopathy, coagulopathy, and circulatory dysfunction, which commonly leads to multiorgan failure and death. Central to the pathogenesis of ALF is activation of the immune system with mobilisation of cellular effectors and massive production of cytokines. As key components of the innate immune system, monocytes and macrophages are postulated to play a central role in the initiation, progression and resolution of ALF. ALF in humans follows a rapidly progressive clinical course that poses inherent difficulties in delineating the role of these pivotal immune cells. Therefore, a number of experimental models have been used to study the pathogenesis of ALF. Here we consider the evidence from experimental and human studies of ALF on the role of monocytes and macrophages in acute hepatic injury and the ensuing extrahepatic manifestations, including functional monocyte deactivation and multiple organ failure.

脂质过氧化诱导培养的内皮细胞表达白细胞介素-1

为探讨脂质过氧化能否诱导内皮细胞表达白细胞介素 - 1(IL - 1)及其是否具有对单核细胞的趋化活性 ,用不同浓度 (1、 5和 10 μmol/ L)的联胺诱发培养的内皮细胞脂质过氧化 ,用硫代巴比妥酸微量荧光测定法测定样品中的丙二醛含量 ;用免疫细胞化学检测 IL - 1β蛋白的表达 ;用单核细胞趋化实验观察脂质过氧化诱导的白细胞介素 - 1的趋化活性。结果显示 ,随着联胺浓度的增高 ,细胞内的丙二醛含量逐渐升高 ,分别为对照组的 2 .6 0倍、 5 .88倍和 11.6 7倍(F=12 9.10 ,P<0 .0 5 )。免疫细胞化学显示 ,正常内皮细胞可表达低水平 IL- 1β,加联胺后 ,各组 IL- 1β蛋白表达明显增加 ,分别为对照组的 1.78倍、 2 .70倍和 5 .0 2倍 (F=2 93.83,P<0 .0 5 )。趋化实验显示 ,经联胺刺激的条件培养基引起的单核细胞迁移距离明显大于非联胺条件培养基和随机移动组 (F=6 12 .5 5 ,P<0 .0 5 ) ,在联胺刺激的条件培养基中加入抗 IL - 1α或抗 IL - 1β抗体后 ,单核细胞迁移距离皆明显缩短 (F=4 37.0 3,P<0 .0 5 )。结果提示 ,联胺可诱发内皮细胞的脂质过氧化 ,诱导其表达和分泌 IL- 1,并初步证明 IL- 1可招引单核细胞迁移 ,从而在动脉内膜单核

麝香对颅骨骨缺损模型大鼠SCF和MCP-1 mRNA表达的影响及意义

目的分析干细胞因子(SCF)、单核细胞趋化蛋白1(MCP-1)在颅骨骨缺损模型大鼠中的作用及麝香对二者表达的影响。方法通过颅骨钻建立颅骨骨缺损模型,将模型大鼠随机分为给药组与模型组,再将给药组和模型组随机分为3小组,给药组灌服麝香,模型组灌服生理盐水,分别在干预后7 d、14 d、28 d通过酶联免疫吸附法(ELISA)检测各组大鼠血清中SCF表达及采用实时荧光定量PCR法检测颅骨骨缺损处MCP-1 mRNA含量的表达变化。结果与模型组比较,给药组第14天SCF表达最低,且无显著性,第7天和第28天其表达均比第14天升高,这两时间段与模型组比较差异均有统计学意义(P=0.0002、0.0025),但是第7天SCF表达增加更加显著;给药组在第7天MCP-1 mRNA表达水平最高,与模型组比较差异有统计学意义(P<0.05),第14天和第28天其表达持续降低,与模型组比较差异均无统计学意义(P=0.0633、0.1597)。结论SCF、MCP-1在颅骨骨缺损修复愈合过程中可能起重要作用,麝香通过增加模型大鼠血清中SCF的表达和颅骨骨缺损组织MCP-1 mRNA的表达,间接反映出骨缺损修复愈合机制可能与增加SCF和MCP-1 mRNA表达有关,麝香在加速骨缺损修复与愈合微环境中起着重要作用。

单核细胞趋化蛋白-1和血管内皮生长因子mRNA在急性甲醇中毒大鼠脑组织的表达

目的观察大鼠急性甲醇中毒后脑组织趋化因子单核细胞趋化蛋白1(MCP-1)及血管内皮生长因子(VEGF)mRNA水平的表达变化.方法健康成年SD大鼠75只,应用通有混合气体(N2O/O2)的密闭有机玻璃箱并灌胃相应剂量甲醇溶液复制急性高剂量甲醇中毒大鼠和急性低剂量甲醇中毒大鼠(n=5).分不同时段(2h,12 h,24 h,3 d,1周)取大鼠右心房静脉血,采用气相色谱法检测大鼠血液的甲醇浓度,取大鼠脑组织进行总RNA提取,经逆转录得cDNA,用SYBRGreen荧光实时定量PCR技术动态定量监测脑组织中MCP-1和VEGF mRNA在急性甲醇中毒后不同时间点表达的变化.结果 (1)甲醇浓度检测结果:低剂量组在2 h、12 h的血液甲醇浓度较生理盐水组显著升高(P<0.05),高剂量组在2 h、12 h、24 h的血液甲醇浓度较低剂量组和生理盐水组显著升高(P<0.05),各组在3 d和1周均未测出甲醇;(2)MCP-1 mRNA表达变化:在甲醇中毒后2 h明显升高,24 h达到高峰,各个时间点与对照组比较均有显著性差异(P<0.05),在2 h,3 d和1周高剂量组高于低剂量组;(3)VEGF mRNA表达变化:在甲醇中毒后2 h明显升高,24 h达到高峰,各个时间点与对照组比较均有显著性差异(P<0.05),在2 h和12 h高剂量组高于低剂量组.结论急性甲醇中毒后,MGP-1和VEGF mRNA的表达显著升高,程度与甲醇中毒剂量有关,可能在脑损伤形成和发展过程中起着重要作用.

尿液MCP-1浓度与小儿IgA肾病肾小管间质病变的相关性分析

目的探讨尿液中单核细胞趋化蛋白-1(MCP-1)与Ig A肾病肾小管间质病变的关系。方法选取2012年3月至2015年8月临沂市沂水中心医院小儿内三科进行肾穿刺活检确诊的98例原发性Ig A肾病患儿进行回顾性研究,根据活检病理肾小管间质的损害程度分为:无病变组11例、轻度组41例、中度组32例、重度组14例,检测各组患儿尿液中MCP-1及相关指标并进行分析。结果中度组、重度组Ig A肾病患儿的收缩压、舒张压水平均显著高于无病变组、轻度组患儿,差异均具有统计学意义(重度组与无病变组的收缩压、舒张压水平比较,t值分别为4.119、5.820;中度组与轻度组比较,t值分别为4.613、5.714;重度组与无病变组比较,t值分别为2.668、2.914;重度组与轻度组比较,t值分别为2.257、2.573,均P<0.05);无病变组、轻度组、中度组、重度组患儿的血肌酐、β2微球蛋白(β2-MG)、尿NAG、24h尿蛋白定量、尿MCP-1均呈逐渐升高的趋势,组间差异均具有统计学意义(F值分别为40.862、37.851、62.396、77.084、21.362,均P<0.05);肌酐清除率在无病变组、轻度组、中度组、重度组患儿中呈逐渐降低的趋势,组间差异具有统计学意义(F=43.396,P<0.05)。肾小管间质的损害Ig A肾病患儿的血肌酐、β2-MG、尿NAG、24h尿蛋白定量与尿M CP-1均呈显著的正相关关系(r值分别为0.671,0.598,0.664,0.692,均P<0.05),肌酐清除率与尿M CP-1呈显著的负相关关系(r=-0.720,P<0.05)。结论 M CP-1能反应Ig A肾病患儿肾小管间质病变的程度。

白藜芦醇对单核细胞表达CC类趋化因子受体2基因和内皮细胞分泌单核细胞趋化蛋白1的影响

目的探讨白藜芦醇对活化的人脐静脉内皮细胞分泌单核细胞趋化蛋白1及对人单核细胞株THP-1细胞表面CC类趋化因子受体2基因表达的影响。方法半定量逆转录聚合酶链反应法检测THP-1细胞CC类趋化因子受体2mRNA的表达;以肿瘤坏死因子α激活人脐静脉内皮细胞,酶联免疫吸附法测定活化的人脐静脉内皮细胞单核细胞趋化蛋白1的分泌。结果10μmol/L和50μmol/L白藜芦醇可以抑制THP-1细胞CC类趋化因子受体2mRNA的表达(0.19±0.02和0.06±0.02比0.73±0.15,P<0.01),且随着白藜芦醇剂量的升高(1、10、50μmol/L),基因表达抑制也逐渐加强(P<0.01);10μmol/L和50μmol/L白藜芦醇可减少活化的人脐静脉内皮细胞单核细胞趋化蛋白1的分泌(9663.33±927.38ng/L和2822.17±472.47ng/L比16595.67±1667.39ng/L,P<0.01),随着白藜芦醇剂量升高,单核细胞趋化蛋白1分泌逐渐减少(P<0.01)。结论白藜芦醇能剂量依赖性地抑制单核细胞CC类趋化因子受体2基因的表达,并减少活化的内皮细胞单核细胞趋化蛋白1的分泌,从而有效抑制单核细胞的趋化,发挥抗动脉粥样硬化的作用。

进展性缺血性脑卒中患者血清NGB、MCP-1、IMA的动态变化及临床意义

目的探讨进展性缺血性脑卒中(PIS)患者血清脑红蛋白(NGB)、单核细胞趋化蛋白1(MCP-1)、缺血修饰蛋白(IMA)的动态变化及临床意义。方法选择2017年10月至2019年2月沧州市中心医院神经内科收治的缺血性脑卒中患者120例,依据其是否为PIS分为PIS组58例和非PIS组62例。另选择同期本院健康体检者50例为健康对照组。PIS患者根据美国国立卫生研究院卒中量表(NIHSS)评分评价疾病严重程度分为轻度亚组、中度亚组、重度亚组,根据入院后第7天斯堪的纳维亚卒中量表(SSS)评价疾病进展程度分为轻型亚组、中型亚组、重型亚组。比较PIS组、非PIS组、健康对照组临床资料,分析血清NGB、MCP-1、IMA水平与疾病严重程度、进展程度的关系。结果PIS组、非PIS组入院后各时点血清NGB、MCP-1、IMA水平均高于健康对照组(均P<0.05)。PIS组入院各时点血清NGB、MCP-1、IMA水平均持续增高,且高于非PIS组,差异均有统计学意义(均P<0.05)。非PIS组入院后前3 d血清NGB、MCP-1、IMA水平均持续增高,但第7天低于第3天,差异均有统计学意义(均P<0.05)。重度及中度亚组血清NGB、MCP-1、IMA水平高于轻度亚组,重度亚组又高于中度亚组,差异均有统计学意义(均P<0.05)。重型、中型亚组血清NGB、MCP-1、IMA水平高于轻型亚组,重型亚组高于中型亚组,差异均有统计学意义(均P<0.05)。相关性分析结果显示PIS患者血清NGB、MCP-1、IMA水平均与NIHSS评分、SSS评分呈正相关(均P<0.05)。logistic回归分析结果显示血清LDL-C、NGB、MCP-1、IMA均是PIS发病的危险因素(均P<0.05)。结论PIS患者血清NGB、MCP-1、IMA水平明显高于非PIS患者。血清NGB、MCP-1、IMA水平升高可能与PIS发病和疾病进展有关。