Prediction of poor prognosis in patients with acute cerebral infarction / 中国医师进修杂志

Objective:To explore the predictive values of serum monocyte chemoattractant protein-1 (MCP-1), high mobility protein B1 (HMGB1), adiponectin (APN) and oxidized low density lipoprotein (ox-LDL) levels on poor prognosis of patients with acute cerebral infarction(ACI).Methods:One hundred and sixty-fivepatients with ACI in Zibo Hospital, Shandong Guoxin Nursing Group from October 2018 to December 2020 were selected as the observation group, and 147 healthy people in the same period were selected as the normal control group. The levels of serum MCP-1, HMGB1, APN and ox-LDL were detected. In addition, the observation group was followed up for 3 months after discharge, and the observation group was divided into good prognosis group and poor prognosis group by modified Rankin Scale score. The levels of serum MCP-1, HMGB1, APN and ox-LDL between the poor prognosis group and the good prognosis group were compared. The influencing factors of poor prognosis in patients with ACI and the predictive value of serum MCP-1, HMGB1, APN and ox-LDL levels on poor prognosis were analyzed by Logistic multiple regression analysis and receiver operating characteristic (ROC) curve.Results:The levels of serum MCP-1, HMGB1 and ox-LDL in the observation group were higher than those in the normal control group: (322.61 ± 65.27) ng/L vs. (163.18 ± 15.12) ng/L, (6.61 ± 3.54) μg/L vs. (2.90 ± 0.41) μg/L, (481.11 ± 177.67) mg/L vs. (247.47 ± 27.13) mg/L; but the level of serum APN was lower than that in the normal control group: (10.63 ± 3.80) μg/L vs. (17.65 ± 2.87) μg/L, there were statistical differences ( P<0.05). After 3 months of follow-up, the incidence rate of poor prognosis in the observation group was 35.15%(58/165). The serum levels of MCP-1, HMGB1 and ox-LDL in the poor prognosis group were higher than those in the good prognosis group: (372.15 ± 71.33) ng/L vs. (295.76 ± 42.23) ng/L, (9.74 ± 3.96) μg/L vs. (4.91 ± 1.62) μg/L, (631.03 ± 196.84) mg/L vs. (399.85 ± 95.07) mg/L; but the serum APN level was lower than that in the good prognosis group: (7.62 ± 2.83) μg/L vs. (12.27 ± 3.22) μg/L, there were statistical differences ( P<0.05). The results of Logistic multiple regression analysis showed that age, hypertension, hyperlipidemia, infarct volume, nerve function defect score, time from onset to treatment and MCP-1, HMGB1, APN and ox-LDL levels were the influencing factors of poor prognosis in patients with ACI ( P<0.05). The results of ROC curve analysis showed that the sensitivity and area under the curve of serum MCP-1, HMGB1, APN and ox-LDL levels in combined predicting the poor prognosis were 98.28% and 0.954, which were higher than the single index evaluation ( P<0.05). Conclusions:The serum levels of MCP-1, HMGB1 and ox-LDL are closely related to the prognosis of ACI patients, and all of them have a certain predictive value for the poor prognosis of patients, but the combined prediction efficiency of four items is more higher.

Changes of biomarkers in plasma of patients with occupational silicosis and their diagnostic value / 中国职业医学

{L-End}Objective To analyze the changes of seven potential biomarkers in plasma of patients with occupational silicosis (hereinafter referred to as "silicosis"), and explore their clinical value in determining the stage of silicosis. {L-End}Methods A total of 100 male silicosis patients were selected as the silicosis group (63 cases in stage Ⅰ and 37 cases in stage Ⅱ subgroups), and 100 male healthy individuals were selected as the control group using the 1∶1 matched case-control study. Enzyme-linked immunosorbent assay was used to analyze the level of interleukin-17 (IL-17), monocyte chemoattractant protein-1 (MCP-1), matrix metalloproteinase-9 (MMP-9), Krebs von den Lungen-6 (KL-6), connective tissue growth factor (CTGF), platelet-derived growth factor (PDGF), and histone H4 in plasma. Their clinical value for diagnosing silicosis was evaluated using receiver operating characteristic (ROC) curve, discriminant analysis stepwise method, and Fisher discriminant function analysis. {L-End}Results The levels of IL-17, MCP-1, MMP-9, KL-6, CTGF, PDGF, and histone H4 in the plasma of the silicosis group, silicosis stage Ⅰ subgroups, and stage Ⅱ subgroups were higher than those in the control group (all P<0.05). The levels of IL-17, MCP-1, and MMP-9 in the plasma of the stage Ⅱ subgroup decreased (all P<0.05), while the levels of KL-6, CTGF and histone H4 increased (all P<0.05) compared with the stage Ⅰ subgroup. The area under the ROC curve for diagnosing silicosis using these seven potential biomarkers ranged from 0.761 to 1.000 (all P<0.01), with the sensitivity of 0.640-1.000, the specificity of 0.840-0.990, and the Youden index of 0.540-0.990. The Fisher discriminant function was formed by stepwise discriminant analysis, and the results showed that the coincidence rate was 99.5%, and the misdiagnosis rate was 0.5% for diagnosing and staging silicosis with these seven potential biomarkers. The coincidence rate of diagnosing control group, silicosis stageⅠsubgroup and the silicosis stage Ⅱ subgroup was 100.0%, 98.4% and 100.0%, respectively. {L-End}Conclusion IL-17, MCP-1, MMP-9, KL-6, CTGF, PDGF and histone H4 in plasma can be used as biomarkers for the diagnosis of silicosis, and the Fisher discriminant function based on the combination of these seven biomarkers can assist in staging silicosis.

Diagnostic accuracy of muscle ultrasound and plasma monocyte chemoattractant protein-1 for ICU-acquired weakness in patients with sepsis / 中华危重病急救医学

Objective:To explore the diagnostic accuracy of muscle ultrasound and plasma monocyte chemoattractant protein-1 (MCP-1) for ICU-acquired weakness (ICU-AW) in patients with sepsis.Methods:A prospective observational study was conducted. Patients with sepsis admitted to the intensive care unit (ICU) of Henan Provincial People's Hospital from April 2021 to October 2021 were enrolled. The demographic data were collected. The enrolled patients were evaluated with Medical Research Council (MRC) score every day until discharged from ICU. During this period, patients with total MRC score < 48 (for two consecutive times and a time interval of 24 hours) were divided into ICU-AW group, those with total MRC score ≥ 48 were served as non-ICU-AW group. On the 1st, 4th and 7th day following admission into ICU, ultrasound was used to measure the muscle linear thickness of the rectus femoris (RF-MLT), the cross sectional area of the rectus femoris (RF-CSA) and the muscle linear thickness of the vastus intermedius muscle (VI-MLT). And meanwhile, the plasmas samples of patients were collected to measure MCP-1 concentration by enzyme-linked immunosorbent assay (ELISA). The difference of each index was compared between the ICU-AW group and the non-ICU-AW group. The risk factors of ICU-AW in patients with sepsis were analyzed by binary Logistic regression. Besides, receiver operator characteristic curve (ROC curve) was plotted, the diagnostic value of ultrasound parameters and plasma MCP-1 level for ICU-AW in patients with sepsis was analyzed.Results:A total of 99 septic patients were enrolled, with 68 patients in the ICU-AW group and 31 patients in the non-ICU-AW group. Compared with the patients in the ICU-AW group, the patients in the non-ICU-AW group tended to be older, and had higher sequential organ failure assessment (SOFA) score, higher acute physiology and chronic health evaluation Ⅱ (APACHEⅡ) score, higher rates of septic shock, higher blood lactic acid and lower Glasgow coma score (GCS). Binary Logistic regression analysis showed that APACHEⅡ score and septic shock were the risk factors of ICU-AW for septic patients [odds ratio ( OR) and 95% confidence interval (95% CI) were 1.310 (1.138-1.509) and 0.232 (0.072-0.746), respectively, both P < 0.05]. The RF-MLT, RF-CSA and VI-MLT on the 1st, 4th and 7th ICU day was falling over time. Compared with the patients in the ICU-AW group, the patients in the non-ICU-AW group had smaller RF-MLT on the 7th day [cm: 0.32 (0.22, 0.47) vs. 0.45 (0.34, 0.63), P < 0.05] and higher 7-day RF-CSA atrophy rate [25.85% (10.37%, 34.28%) vs. 11.65% (2.28%, 22.41%), P < 0.05]. According to ROC curve analysis, 7-day RF-MLT had diagnostic value for ICU-AW of septic patients. Area under ROC curve (AUC) was 0.688 (95% CI was 0.526-0.849); when the cut-off value was 0.41 cm, the sensitivity and the specificity were 66.7% and 68.4%. The levels of plasma MCP-1 in the ICU-AW group were significantly higher than those in the non-ICU-AW group on the 1st, 4th and 7th day. ROC curve analysis showed that the plasma MCP-1 levels on the 1st, 4th and 7th day played a significant role to diagnose ICU-AW for septic patients, the AUC and 95% CI were 0.732 (0.629-0.836), 0.865 (0.777-0.953), 0.891 (0.795-0.986), respectively. When the cut-off values were 206.3, 410.9, 239.5 ng/L, the sensitivity was 87.1%, 64.0%, 82.4%, and the specificity was 54.4%, 96.1%, 86.2%, respectively. Conclusion:The muscle mass parameters on the 7th day of bedside ultrasound and plasma MCP-1 levels had certain diagnostic values for ICU-AW in patients with sepsis.

Effects of removable periodontal splint combined with minocycline on periodontal indexes and tooth aesthetics in patients with severe periodontal disease / 中国基层医药

Objective:To investigate the effects of removable periodontal splint combined with minocycline on periodontal indexes and tooth aesthetics in patients with severe periodontal disease.Methods:A total of 102 patients with severe periodontal disease treated in the School and Hospital of Stomatology, China Medical University from November 2018 to April 2020 were included in this study. They were randomly allocated into study and control groups ( n = 51/group). The control group was subject to repair with removable periodontal splint based on routine interventions. The study group was subject to medication with minocycline in addition to the treatments used in the control group. Clinical efficacy, periodontal status (sulcus bleeding index, plaque index, periodontal pocket depth) and gingival crevicular fluid inflammatory factors (transforming growth factor β, monocyte chemoattractant protein-1, interleukin-6, matrix metalloproteinase-8) and bone metabolism indexes [osteocalcin, N-terminal procollagen of type I (PINP), N-terminal propeptide of type I procollagen (PINP), C-terminal telopeptide of type I collagen (CTX) levels], comfort and aesthetics scores, and patient satisfaction were compared between the two groups. Results:Total response rate was significantly higher in the study group than in the control group [94.12% (48/51) vs. 80.39% (41/51), χ2 = 4.32, P < 0.05]. At 1 and 3 months after treatment, sulcus bleeding index (1.32 ± 0.41, 1.11 ± 0.36), plaque index (1.51 ± 0.44, 1.32 ± 0.51), periodontal pocket depth [(3.29 ± 0.70) mm, (2.51 ± 0.63) mm] were significantly lower in the study group than in the control group [1.65 ± 0.39, 1.45 ± 0.38, 1.92 ± 0.42, 1.88 ± 0.49, (5.05 ± 0.79) mm, (3.82 ± 0.86) mm, t = 4.16, 4.63, 4.81, 5.65, 11.90, 8.77, all P < 0.001]. At 1 and 3 months after treatment, the level of transforming growth factor β in the gingival crevicular fluid was significantly higher, and the level of matrix metalloproteinase-8 in the gingival crevicular fluid was significantly lower, in the study group compared with the control group (both P < 0.001). At 1 and 3 months after treatment, the level of osteocalcin in the gingival crevicular fluid was significantly higher, and the level of C-terminal telopeptide of type I collagen in the gingival crevicular fluid was significantly lower, in the study group compared with the control group ( t = -9.97, -10.71, -5.77, -7.40, 7.24, 16.11, all P < 0.001). At 1 and 3 months after treatment, the scores of comfort and aesthetics in the study group were significantly higher than those in the control group ( t = 7.49, 8.26, 7.84, 9.10, all P < 0.001). Patient satisfaction in the study group was significantly higher than that in the control group (94.12% vs. 80.39%, χ2 = 4.32, P < 0.05). Conclusion:Repair with a removable periodontal splint combined with minocycline can increase the therapeutic effects through reducing periodontal inflammation and regulating bone metabolism, thereby improving the periodontal condition, and improving tooth comfort and aesthetics and patient satisfaction in patients with severe periodontal disease.

Clinical significance of prognostic serum marker expression in older adult patients with sepsis-associated encephalopathy / 中国基层医药

Objective:To investigate the clinical significance of prognostic serum marker expression in older adult patients with sepsis-associated encephalopathy (SAE).Methods:The clinical data of 79 older adult patients with SAE who received treatment in The Second People's Hospital of Hefei from June 2019 to February 2021 (study group) and 121 sepsis patients without encephalopathy concurrently (control group) were retrospectively analyzed. The indexes with statistically significant difference between the two groups were subjected to multivariate binary logistic regression. Survival curve was plotted.Results:There were no significant differences in neuron specific enolase [NSE, (10.69 ± 4.31) μg/L vs. (24.84 ± 3.28) μg/L, t = 26.25, P < 0.01], S100β [(0.25 ± 0.06) μg/L vs. (0.53 ± 0.09) μg/L, t = 22.45, P < 0.01], monocyte chemoattractant protein-1 [MCP-1, (99.33 ± 4.87) ng/L vs. (179.99 ± 6.02) ng/L, t = 99.94, P < 0.01], malondialdehyde [MDA, (4.22 ± 0.08) nmol/L vs. (6.78 ± 0.11) nmol/L, t = 33.76, P < 0.01], glial fibrillary acidic protein [GFAP, (0.21±0.08) μg/L vs. (2.03 ± 0.47) μg/L, t = 33.76, P < 0.01], procalcitonin [(7.04 ± 2.50) ng/L vs. (16.23 ± 2.48) ng/L, t = 25.47, P < 0.01], interleukin-6 [(29.91 ± 4.51) ng/L vs. (69.22 ± 6.79) ng/L, t = 45.51, P < 0.01], Acute Physiology and Chronic Health Evaluation II (APACHE II) score [(18.33 ± 2.12) points vs. (28.89 ± 5.09) points, t = 17.53, P < 0.01], and sequential organ failure assessment score [(7.69 ± 1.50) points vs. (14.05 ± 1.55) points, t = 28.92, P < 0.01] between the control and study groups. N-terminal pro B-type natriuretic peptide was (868.38 ± 25.28) ng/L and (1 037.19 ± 25.34) ng/L in the control and study groups, respectively. Logistic regression analysis revealed that NSE, MCP-1, MDA, and GFAP were the independent risk factors for developing SAE in older adults (NSE: t = 8.42, P < 0.01; MCP-1: t = 4.16, P < 0.01; MDA: t = 18.4, P < 0.01; GFAP: t = 2.88, P < 0.01). The survival curve indicated that survival rate was significantly lower in the study group than in the control group. Conclusion:NSE, MCP-1, MDA, and GFAP are independent risk factors for developing SAE in older adults.

Role of monocyte chemoattractant protein-induced protein-1 in acute lung injury in septic rats / 中华麻醉学杂志

Objective:To evaluate the role of monocyte chemoattractant protein-induced protein-1 (MCPIP-1) in acute lung injury in septic rats.Methods:Forty-eight healthy male Sprague-Dawley rats, aged 8-12 weeks, weighing 230-270 g, were divided into 6 groups ( n=8 each) using the random number table method: sham operation group (S group), different doses of ubiquitin-proteasome inhibitor groups (M 1 and M 2 groups), cecal ligation and perforation (CLP) group, and different doses of ubiquitin-proteasome inhibitor + CLP groups (M 1-CLP and M 2-CLP group). Sepsis was induced by CLP in anesthetized animals.Ubiquitin-proteasome inhibitor MG-132 5 and 10 mg/kg were intraperitoneally injected at 30 min before sham operation in M 1 and M 2 groups, respectively.MG-132 5 and 10 mg/kg were intraperitoneally injected at 30 min before CLP in M 1-CLP and M 2-CLP groups, respectively.The rats were sacrificed at 6 h after operation, bronchoalveolar lavage (BALF) was collected for determination of the concentrations of tumor necrosis factor-alpha (TNF-α), interleukin-1beta (IL-1β) and IL-6 in BALF (by enzyme-linked immunosorbent assay) and lung tissues were obtained for microscopic examination of pathological changes which were scored and for determination of wet/dry lung weight ratio (W/D ratio) and expression of MCPIP-1 protein and mRNA (by Western blot and real-time polymerase chain reaction). Results:Compared with S group, the lung injury scores, W/D ratio, and concentrations of TNF-α, IL-1β and IL-6 in BALF were significantly increased in CLP group ( P<0.05), and no significant changes were found in the parameters mentioned above( P>0.05), and the expression of MCPIP-1 protein and mRNA in lung tissues was significantly up-regulated in M 1 and M 2 groups ( P<0.05), and no significant change was found in the expression of MCPIP-1 protein and mRNA in lung tissues in CLP group ( P>0.05). Compared with CLP group, the lung injury scores, W/D ratio, and concentrations of TNF-α, IL-1β and IL-6 in BALF were significantly decreased, and the expression of MCPIP-1 protein and mRNA in lung tissues was up-regulated in M 1-CLP and M 2-CLP groups ( P<0.05). Conclusions:MCPIP-1 exerts an endogenous protective mechanism during acute lung injury in septic rats.

Experimental study on the role of IL-10 in improving donor lung function after ex vivo lung perfusion in rats of cardiac death / 器官移植

Objective To evaluate the effect of interleukin (IL)-10 on donor lung function after ex vivo lung perfusion (EVLP) in rats of cardiac death. Methods Twenty adult male SD rats were randomly divided into the simple perfusion group (group A, n=10) and modified perfusion group (group B, n=10). Perfusate A (without IL-10) and perfusate B (supplemented with IL-10) was administered in group A and B, respectively. The EVLP rat models of cardiac death were established. The appearance of donor lung, dry-to-wet (D/W) ratio of donor lung tissues, the function and metabolism of donor lung, the morphology of donor lung and the levels of inflammatory markers of donor lung were statistically compared between two groups. Results After perfusion, evident edema of the whole donor lung, poor compliance and a large amount of edema fluid discharged from the airway were observed in group A, whereas no obvious edema and good compliance were found in group B. Compared with group A, the D/W ratio of lung tissues in group B was higher (P < 0.05). In both groups, the pulmonary vein partial pressure of oxygen reached the peak at 2 h after perfusion, which did not significantly differ between two groups (P > 0.05). In group B, the pulmonary artery pressure was increased at a lower speed and significantly lower after perfusion, and the lactic acid level in the perfusate was significantly lower than those in group A (all P < 0.05). In group A, the alveolar structure was largely destroyed and the cells was rare. In group B, the alveolar structure was relatively normal without evident cell edema. The incidence of cell apoptosis of donor lung was high in group A, whereas no obvious cell apoptosis of donor lung was noted in group B. After perfusion for 4 h, the levels of monocyte chemoattractant protein (MCP)-1 and IL-6 were significantly increased, the IL-4 levels were remarkably decreased (all P < 0.05), but the levels of tumor necrosis factor (TNF)-α, IL-1α and inducible nitric oxide synthase (iNOS) did not significantly change in both groups (all P > 0.05). Conclusions IL-10 may improve the function of donor lung after EVLP in rat of cardiac death by reducing cell apoptosis.

Effects of cytokine-induced neutrophil chemoattractant 3 on the survival and proliferation of neural stem cells / 中国组织工程研究

BACKGROUND: Our previous study was the first to find that bone marrow stromal cells could secrete neutrophil chemokine-3. Moreover, the expression of cytokine-induced neutrophil chemoattractant 3 (CINC-3) could be up-regulated by 1. 5 times during the differentiation of neural stem cells into neurons regulated by bone marrow stromal cells. These results suggest that CINC-3 may promote the proliferation and differentiation of neural stem cells. OBJECTIVE: To observe the effect of CINC-3 on survival and proliferation of hippocampal neural stem cells in neonatal rats. METHODS: Hippocampal neural stem cells from neonatal Sprague-Dawley rats were isolated and cultured in vitro, and passage 3 neural stem cells were divided into control and CINC-3 groups. The survival rate of the cells was measured by MTS method, cell survival and proliferation were observed using cell growth curve and live/dead cell staining, and the expression of Nestin in neural stem cells was detected by real-time PCR and immunofluorescence staining for observation of neural stem cell proliferation. RESULTS AND CONCLUSION: (1) When the concentration of CINC-3 increased from 1 to 20 μg/L, the survival rate of neural stem cells increased gradually. When the concentration of CINC-3 was 10 μg/L, the survival rate of neural stem cells was the highest and the cell viability was the best (P < 0. 05). When the concentration of CINC-3 further increased to 20 μg/L, there was no significant difference in the survival rate of neural stem cells. (2) The positive rate of Nestin in the CINC-3 group was significantly higher than that in the control group (P < 0. 05). (3) The expression of Nestin mRNA in the CINC-3 group was significantly higher than that in the control group (P < 0. 05). These findings indicate CINC-3 can promote the survival and proliferation of hippocampal neural stem cells.

Effects of PEDF on the expression of MCP-1 in mice retina of oxygen-induced retinopathy / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To observe the effect of pigment epithelium-derived factor(PEDF)on retinal neovascularization(RNV)and monocyte chemoattractant protein-1(MCP-1)expressions in mice retina of oxygen-induced retinopathy(OIR), and to investigate the protective effect of PEDF on ischemia hypoxia retinopathy and the possible mechanism. <p>METHODS: A total of 160 postnatal day(P)7 C57BL/6 mice were obtained. All mice except normal control group were exposed to(75±2)% oxygen environment for 5d and then kept in room air for another 5d to establish the OIR mice model. All mice in normal control group(40 mice)were exposed to room air only. At P12 and P14, respectively, mice in PEDF treatment group were injected intravitreously with recombinant human PEDF(2μg/eye,1μL)in the right eye, while mice in treatment control group were injected intravitreously with the same volume of vehicle [1μL, 10mmol/L phosphate buffered saline(PH7.4), PBS] in the right eye. All mice were euthanized at P17. Eyes were whole mounted and stained with Lectin to observe the growth of abnormal RNV; And retinal specimens were prepared for PEDF, MCP-1 protein and mRNA analysis by Western blot and real time RT-PCR respectively. <p>RESULTS: Changes of retinal vessels had been detected by fluorescence microscopy on flat-mounted retina. The relative RNV areas were significantly increased in OIR model group compared with those in normal control group(<i>P</i><0.01). However, the relative RNV areas were significantly reduced in PEDF treatment group compared with those in PBS treatment control group(<i>P</i><0.01). The specific expression of MCP-1 protein and mRNA in the OIR model group were higher than those of normal control group, presenting a statistically significance(both <i>P</i><0.05). The specific expression of PEDF protein and mRNA in the OIR model group showed a considerable decline in comparison with normal control group, presenting a statistically significance(both <i>P</i><0.01). And the specific expression of MCP-1 protein and mRNA in those of PEDF-treated group showed a considerable decline in comparison with PBS-treated group, and the differences were statistically significant(both <i>P</i><0.05). However, there were increase of the expression of MCP-1 protein and mRNA between normal control group and PEDF-treated group, presenting no statistically significance(both <i>P</i>>0.05). <p>CONCLUSION: PEDF could inhibit oxygen-induced retinal neovascularization and down-regulate retinal MCP-1 expression under hypoxia, which may underlie its anti-neovascularization effects and play a role of protection in ischemic retinopathy.

The levels of serum MCP-1 and IL-6 in patients with acute pancreatitis and its clinical significance / 国际检验医学杂志

Objective To explore the dynamic changes of serum monocyte chemoattractant protein-1 (MCP-1) and interleukin-6 (IL-6) in patients with acute pancreatitis (AP) and its clinical significance.Methods A total of 103patients with AP admitted to our hospital from June 2016to December 2017were selected, which were divided into mild AP (MAP group, n=62) and severe AP (SAP group, n=41) according to the condition of disease.The levels of serum MCP-1and IL-6at 1st, 3rd, 7th day after admission were determined by the radioimmunoassay.At the same time, a total of 40healthy volunteers as control group were randomly selected.The predictive value of serum MCP-1and IL-6on for AP was analyzed.Results The serum MCP-1, IL-6level and APACHEⅡscore of MAP group and SAP group at 1st day were higher than those of control group (P<0.05) .The serum MCP-1, IL-6level and APACHEⅡscore of MAP group and SAP group at 3rd, 7th day were higher than those at 1st, and which at 7th were lower than those at 3rd (P<0.05) .The serum MCP-1, IL-6level and APACHEⅡscore of SAP group at 1st, 3rd, 7th were higher than those of MAP group (P<0.05) .Among patients with AP, serum MCP-1and IL-6were positively associated with APACHEⅡscore (P<0.05) .The best cutoff value of serum MCP-1for AP was 31.6pg/mL, and the area under ROC curve was 0.852, and the sensitivity and specificity was 0.87and 0.82respectively, and the accuracy was 0.85.The best cutoff value of serum IL-6for AP was 35.9ng/L, and the area under ROC curve was 0.876, and the sensitivity and specificity were 0.91and 0.85respectively, and the accuracy was 0.87.Conclusion The serum MCP-1and IL-6of patients with AP abnormal changes, which were closely related to the severity and prognosis.Early detection of MCP-1and IL-6can help to judge condition and evaluate prognosis.

Role of monocyte chemoattractant protein 1 and its receptor in the progression of liver fibrosis / 临床肝胆病杂志

Liver fibrosis is a common reversible pathological change in chronic liver injury and may progress to liver cirrhosis, liver failure, and portal hypertension. In recent years, several studies have shown a significant change in chemokine profiles in patients with liver fibrosis, which is closely associated with the progression of liver fibrosis. Monocyte chemoattractant protein 1 (MCP-1) belongs to the family of CC chemokines and can induce the activation, recruitment, and migration of inflammatory cells during liver fibrosis. MCP-1 may be involved in the activation of hepatic stellate cells, the development of insulin resistance, and the progression to hepatocellular carcinoma. This article mainly reviews the potential role of MCP-1 and CC chemokine receptor in the progression of liver fibrosis and related therapies.

Gene Silencing of PTX3 by siRNA Inhibits Expression of Inflammatory Factors in Aortic Valve Interstitial Cells / 华中科技大学学报(医学版)

Objective@# To explore the role of lipopolysaccharide（LPS）in the pathogenesis of calcific aortic valve disease（CAVD）by detecting the expression of inflammatory factors in aortic valve interstitial cells（AVICs），and the expression of interleukin-6（IL-6），interleukin-8（IL-8），monocyte chemoattractant protein-1（MCP-1）after silencing pentraxin 3（PTX3）gene，to test the effect of PTX3 on the pathophysiological process of CAVD. @*Methods@#We obtained aortic valves for immunohistochemistry staining from 12 patients with CAVD，and from 12 patients without aortic valve disease receiving heart transplant operation as controlAVICs were cultured in vitro，different concentrations of LPS（0，50，100，200 ng/mL）treated cells for 24 h，and then the expression levels of IL-6，IL-8 and MCP-1 were analyzed by real-time polymerase chain reaction（real-time PCR）. After AVICs were transfected with PTX3 siRNA for 48 h to knockdown the expression of PTX3 protein，PTX3 was tested by Western blotting. The levels of IL-6，IL-8 and MCP-1 were detected by real-time PCR 24 h after treatment with LPS（100 ng/mL）in AVICs with PTX3 siRNA transfection. @*Results@#The calcific aortic valves significantly expressed PTX3 as compared with control.LPS dose-dependently increased IL-6，IL-8 and MCP-1 in AVICs. Compared with control groups，100 ng/mL LPS significantly increased IL-6，IL-8 and MCP-1 mRNA（P<0.05，P<0.01）. PTX3 siRNA markedly decreased the levels of PTX3 protein compared with control groups（P<0.01）. Levels of IL-6，IL-8 and MCP-1 were significantly reduced in LPS plus PTX3 siRNA group compared with controls（all P<0.05）.@*Conclusion@#The calcific aortic valves have a higher level of PTX3 than control valves.LPS stimulates the expression of IL-6，IL-8 and MCP-1 in AVICs，but silencing PTX3 gene significantly inhibits LPS-stimulated expression of IL-6，IL-8 and MCP-1. PTX3 may play a role in CAVD pathogenesis by regulating expression of inflammatory factors

Renal protective effect of quercetin on mice with systemic lupus erythematosus and its effect on TGF-β1 and monocyte chemoattractant protein-1 / 中华风湿病学杂志

Objective To study the protective effect of quercetin on the kidney of mice with systemic lupus erythematosus (SLE) and to explore its effect on transforming growth factor (TGF)-β1 and monocyte chemoattractant protein-1 (MCP-1).Methods Thirty BALB/c female mice were randomly divided into control group,model group and drug group according to the envelope method,with 10 mice in each group.A mouse model of SLE was established by intra-peritoneal injection of pristane method.The drug group was given quercetin treatment,and the control group and the model group were given the same dose of normal saline.The renal function index and autoanti-body level in each group of mice were compared.The pathological changes of renal tissues were observed by HE staining.The expressions of TGF-β1 and MCP-1 were determined by Western blotting and real-time fluorescence quantitative reverse transcription polymerase chain reaction (qRT-PCR).The renal function index,autoantibody level,TGF-β1,and MCP-1 expression were statistically analyzed by analysis of one-way analysis of variance (ANOVA).Results The levels of blood urea nitrogen (BUN),serum creatinine (Scr),24 h urine protein,kidney hypertrophy index,antinuclear antibody (ANA) antibody,anti-dsDNA antibody and anti-snRNP/Sm in the model group and the drug group were higher than those in the control group.Compared with the model group,the levels of BUN,Scr,24 h urine protein,kidney hypertrophy index,ANA antibody,anti-dsDNA antibody,anti-snRNP/Sm in the drug group were(11.3±1.1) mmol/L,(45±4) μmol/L,(25.7±2.6) mg/24 h,(4.3±0.4)×10-3,(30.3±3.1) ng/L,(472±48) μmol/L and (17.6±1.8) ng/L,which were decreased (q =10.678,6.698,14.948,14.412,9.226,4.691,8.226,P＜0.01).The glomerular score,tubulointerstitial score and tubulointer-stitial score of the model group were higher than those of the control group.The glomerular score,tubulointer-stitial score and tubular score of the drug group were lower than those of the model group (q=10.935,49.537,20.439,P＜0.01).HE staining showed that the kidney structure of the control group was no obvious damage.In the model group,the glomerular volume of the mice increased,and the inflammatory cells in the renal interstitial and renal tubules infiltrated.The pathological changes in the drug group were significantly reduced compared with the model group.Compared with the control group,the expression levels of TGF-β1,MCP-1 protein and mRNA in the model group and the drug group were significantly increased.Compared with the model group,TGF-β1 and MCP-1 protein and mRNA expression levels the mice in the drug group were significantly reduced.Conclusion Quercetin can improve renal function in mice with SLE by down-regulating the expression of TGF-beta 1 and MCP-1.

The level of chemokine C-C motif ligand 2 in systemic lupus erythematosus patients and its association with the 2518 A/G polymorphism in the CCL2 promoter region / 中华风湿病学杂志

Objective To explore the correlation between chemokine C-C motif ligand 2 (CCL2)-2518A/G polymorphism and the incidence of systemic lupus erythematosus (SLE),and investigate the effects of CCL2-2518A/G polymorphism on the expression of CCL2.Methods A total of 134 SLE patients and 56 sex and age matched healthy people were enrolled in this study.CCL2 plasma levels were measured by enzymelinked immunosorbent assay(ELISA).The 2518 A/G polymorphism in CCL2 promoter region was genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP),and then peripheral blood mononuclear cells (PBMCs) were cultured in vitro to explore the influence of the 2518A/G polymorphism in CCL2 promoter region on the expression of CCL2.Mann-Whitney U-test,Student's t test and chi-squared test were used for analysis.Results The plasma CCL2 level in the SLE group was 358.5 (500.1) pg/ml [median (four interval)],which was significantly higher than that in the control group 243.6(125.8) pg/ml (Z=3.892,P=0.000).Patients with high plasma CCL2 levels were more prone to have renal (x2=7.159,P=0.007) and der-matomucosal (x2=5.133,P=0.023) involvement,as well as much higher disease activity index (SLEDAI) scores (Z=2.012,P=0.047).The results of the analysis of individual CCL2-2518A/G polymorphic genotypes suggested that patients with the G/G genotype had the highest CCL2 levels 425.7 (608.8) pg/ml,followed by those with the G/A genotype 355.3(511.1) pg/ml and A/A genotype 327.8(367.9) pg/ml (x2=3.496,P=0.048).The results of in vitro experiment showed that after the stimulation of lipopolysaccharide,the expression of CCL2 in PBMCs with G/G homozygote increased more significantly than that with A/A homozygote (P＜0.05).Conclusion The increase of plasma CCL2 concentrations is associated with tissue injury and high SLEDAI,which suggests that CCL2 may play a crucial role in the pathogenesis of SLE.CCL2-2518A/G polymorphism is not related to the pathogenesis of SLE,but it can affect the condition of SLE by promoting the expression of CCL2 in inflammatory environment.

Effects of resveratrol on TNF-α-induced injury and expression of MCP-1 in isolated rat pulmonary artery endothelial cells / 中国病理生理杂志

AIM:To investigate the possible mechanism of resveratrol(Res)on tumor necrosis factor-α (TNF-α)-induced monocyte chemoattractant protein-1(MCP-1)expression in primary rat pulmonary artery endothelial cells(RPAECs).METHODS: RPAECs were randomly divided into 4 groups: control group, solvent(1% DMSO) group,TNF-αgroup and Res group.Each group was divided into 1 h,4 h and 8 h subgroups(n=6 per time point).The TNF-α+C1142(a rodent chimeric mAb that neutralizes rat MCP-1)group was set up at the 8 h time point.At each time point,the protein and mRNA expression of MCP-1 was measured by Western blot and real-time PCR.RESULTS: Pre-treatment of the RPAECs with C1142 significantly down-regulated the expression of MCP-1(P<0.05).The protein and mRNA expression of MCP-1 was markedly increased in TNF-αgroup(P<0.05).Notably,incubation with Res down-re-gulated the protein and mRNA expression of MCP-1,which was significantly lower than that in TNF-αgroup(P<0.05). CONCLUSION:MCP-1 was involved in the process of TNF-α-induced injury of RPAECs.Res down-regulates the expres-sion of MCP-1 in RPAECs,thus attenuating cell injury.

Expression of monocyte chemoattractant protein-1 in aqueous humor of patients with primary acute angleclosure glaucoma and its association with the patients' prognosis after trabeculectomy / 眼科新进展

Objective To measure the levels of monocyte chemoattractant protein-1 (MCP-1) in the aqueous humor of patients with acute primary angle-closure glaucoma (APACG),and its correlation with the patients' prognosis after trabeculectomy.Methods This retrospective case-control study included 19 patients with APACG who experienced a failed trabeculectomy (case group) and 57 age-and sex-matched patients with APAGG who underwent successful trabeculectomy (control group).Aqueous humor was collected before trabeculectomy for the detection of MCP-1 levels in the both groups by enzyme-linked immunosorbent assay.And finally,logistic regression analysis was applied to assess the risk factors for failed trabeculectomy.Results The MCP-1 concentration in aqueous humor was (5688.04 ± 2099.99)ng · L-1 in the case group and (2077.57 ± 568.44)ng · L-1 in the control group,and the difference between both groups were significant (P ＜ 0.001).Logistic regression analysis revealed MCP-1 level (OR =1.005;95％ CI =1.001-1.008) and a shallow anterior chamber after surgery (OR =31.430;95％ CI =1.577-57.350) were the independent risk factors for failed trabeculectomy procedures.Conclusion MCP-1 levels in aqueous humor are higher in APACG eyes with failed trabeculectomy than those with successful one during 1-year follow-up,so MCP-1 level is considered as an independent risk factor for failed trabeculectomy.

Effects of bone marrow mesenchymal stem cells on the expressions of inflammatory factors in rats with multiple organ dysfunction syndrome / 中华急诊医学杂志

Objective To investigate the effects of bone marrow mesenchymal stem cells (BMSC) on the expression of inflammatory factors in rats with multiple organ dysfunction syndrome (MODS). Methods BMSC extracted from the 4-week-old Sprague-Dawley (SD) rats was cultivated and identified in vitro, then the 4th passage of which was used in the experimental study. Sixty SD rats were randomly(random number) divided into three groups (n=20 in each group): Sham group (SG), MODS group (MG) and BMSC group (BG). Rats in the MG was injected by 1 mg/kg lipopolysaccaride (LPS) via great saphenous vein, rats in the SG injected with the same volume sterile phosphate buffer saline and rats in the BG infused by 1×106/cells BMSCs through the tail vein at 2 h after LPS injection. The survival rate, tissue pathological changes of the lung, liver and heart by hematoxylin and eosin (HE) staining, organ dysfunction measurement by blood gas analysis and biochemical indicators as well as the related inflammatory factors by protein microarray and enzyme linked immunosorbent assay (ELISA), were detected 72 h post operation. Multi-group quantitative data was analyzed by one way ANOVA, paired-comparisons by LSD-t test and the comparisons of survival curves in the three groups by Log-rank test. The value of P<0.05 was considered statistically significant. Results The survival rate in SG, MG and BG was 100％, 60％ and 80％, respectively. The survival curves showed that the survival rate of SG was higher than the MG and BG (SG vs. MG, χ2=9.798, P=0.0017; SG vs. BG, χ2=4.333, P=0.0374), but there was no significant difference comparing the BG to the MG (χ2=2.408, P=0.1207). The tissue congestion and edema, and inflammatory cells infiltration in the lung, liver, and heart of the MG were observed by HE staining, while these changes reduced in the BG. Compared with the SG, the levels of pH and PaCO2 and lactic acid (Lac) increased significantly (all P<0.01), the level of total bilirubin (TB) significantly increased [(0.801±0.501)U/L vs. (2.533±0.382)U/L, P=0.003], while the albumin(ALB) level decreased significantly[(35.471±4.015)U/L vs. (23.202±4.872)U/L, P<0.01], and creatine kinase (CK) level increased significantly in MG [(315.670±41.402) vs. (708.250±219.201), P=0.042]. After BMSC treatment, the organ function improved significantly (all P<0.05). Gamma interferon (IFN-γ) and monocyte chemotactic protein 1 (MCP-1) were the differential expression factors in protein chips. The results of ELISA were similar to the protein chips: compared with the SG, IFN-γ and MCP-1 expressions in the MG increased significantly (P<0.01). Compared with MG, the expressions of IFN-γ and MCP-1 decreased significantly in the BG (P<0.01). Conclusion BMSC administration could modulate the inflammatory response of MODS rats by inhibiting the levels of IFN-γ and MCP-1, and improve the organ function and the survival rate.

Spinal CCL2 Promotes Central Sensitization, Long-Term Potentiation, and Inflammatory Pain via CCR2: Further Insights into Molecular, Synaptic, and Cellular Mechanisms / 神经科学通报·英文版

Mounting evidence supports an important role of chemokines, produced by spinal cord astrocytes, in promoting central sensitization and chronic pain. In particular, CCL2 (C-C motif chemokine ligand 2) has been shown to enhance N-methyl-D-aspartate (NMDA)-induced currents in spinal outer lamina II (IIo) neurons. However, the exact molecular, synaptic, and cellular mechanisms by which CCL2 modulates central sensitization are still unclear. We found that spinal injection of the CCR2 antagonist RS504393 attenuated CCL2- and inflammation-induced hyperalgesia. Single-cell RT-PCR revealed CCR2 expression in excitatory vesicular glutamate transporter subtype 2-positive (VGLUT2) neurons. CCL2 increased NMDA-induced currents in CCR2/VGLUT2 neurons in lamina IIo; it also enhanced the synaptic NMDA currents evoked by dorsal root stimulation; and furthermore, it increased the total and synaptic NMDA currents in somatostatin-expressing excitatory neurons. Finally, intrathecal RS504393 reversed the long-term potentiation evoked in the spinal cord by C-fiber stimulation. Our findings suggest that CCL2 directly modulates synaptic plasticity in CCR2-expressing excitatory neurons in spinal lamina IIo, and this underlies the generation of central sensitization in pathological pain.

Effects of astragaloside-IV on the expression of inflammatory factor and proliferation of glomerular mesangial cells induced by angiotensin Ⅱ / 中国应用生理学杂志

OBJECTIVE@#To study the effects of astragaloside-IV (As-IV) on the expression of inflammatory factor and proliferation of glomerular mesangial cells (GMCs) induced by angiotensin Ⅱ(AngⅡ).@*METHODS@#The model of diabetic nephropathy(DN) was mimic by angiotensin Ⅱ (10mol/L)inducing GMCs injury. Then the GMCs were treated with As-IV at different concentrations(25,50,100 μmol/L)for 48 hours. The proliferation of GMCs was detected by MTT. The level of reactive oxidative species (ROS) was measured by flow cytometry. The expression of monocyte chemoattractant protein-1(MCP-1) protein in supernatant was detected by enzyme- linked immunosorbent assay (ELISA). The expression of transforming growth factor-β1(TGF-β1) in GMCs was measured by Western blot.@*RESULTS@#Compared with model group, the proliferation of GMCs was inhibited in As-IV group. As-IV decreased the level of intercellular ROS, down-regulated the secretion of MCP-1 and the expression of TGF-β1 proteins.@*CONCLUSIONS@#As-IV could inhibit cell proliferation and inflammatory factors expression on GMCs induced by AngⅡ.

MCP-1 Levels are Associated with Cardiac Remodeling but not with Resistant Hypertension / Níveis de MCP-1 estão Associados com Remodelamento Cardíaco mas não com Hipertensão Resistente

Abstract Background: Hypertension is a chronic, low-grade inflammation process associated with the release of cytokines and development of target organ damage. Deregulated monocyte chemoattractant protein-1 (MCP-1) levels have been associated with high blood pressure and cardiovascular complications; however, the mechanisms involved are complex and not fully understood. Objective: This study aimed to compare the levels of MCP-1 in patients with resistant (RH) versus mild-to-moderate (HTN) hypertension and their association with the presence or absence of left ventricular hypertrophy (LVH) in all hypertensive subjects. Methods: We enrolled 256 hypertensive subjects: 120 RH and 136 HTN, investigating the relationship between circulating MCP-1 levels and blood pressure, biochemical data, hematologic profile, and cardiac damage within the RH and HTN groups. Plasma MCP-1 levels were measured by ELISA and LVH was assessed by echocardiography. Results: We found no difference in MCP-1 levels between RH and HTN subjects. On the other hand, we encountered lower MCP-1 levels in patients with LVH (105 pg/mL [100 - 260 pg/mL] versus 136 pg/mL (100 - 200 pg/mL), p = 0.005, respectively] compared with those without LVH. A logistic regression model adjusted for body mass index (BMI), age, race, aldosterone levels, and presence of diabetes and RH demonstrated that median levels of MCP-1 (2.55 pg/mL [1.22 - 5.2 pg/mL], p = 0.01) were independently associated with LVH in the entire hypertensive population. Conclusion: Since MCP-1 levels were similar in both RH and HTN subjects and decreased in hypertensive patients with existing LVH, our study suggests a possible downregulation in MCP-1 levels in hypertensive individuals with LVH, regardless of hypertension strata.

Resumo Fundamentos: A hipertensão arterial é um processo crônico de baixo grau inflamatório, associado com liberação de citocinas e desenvolvimento de lesão em órgãos-alvo. A desregulação dos níveis de proteína quimiotática de monócitos-1 (MCP-1) tem sido associada com elevação da pressão arterial e complicações cardiovasculares; porém, os mecanismos envolvidos são complexos e ainda não foram inteiramente elucidados. Objetivo: O objetivo deste estudo foi comparar os níveis de MCP-1 em pacientes com hipertensão resistente (HR) versus pacientes com hipertensão de grau leve a moderado (HAS) e sua associação com a presença ou ausência de hipertrofia ventricular esquerda (HVE) em todos os indivíduos hipertensos. Métodos: Foram incluídos 256 indivíduos hipertensos: 120 com HR e 136 com HAS. Foi investigada a relação entre os níveis circulantes de MCP-1 e pressão arterial, dados bioquímicos, perfil hematológico e dano cardíaco nos grupos HR e HAS. Os níveis plasmáticos de MCP-1 foram medidos por ELISA e a HVE foi avaliada por ecocardiografia. Resultados: Não encontramos diferença nos níveis de MCP-1 entre indivíduos com HR e HAS. Por outro lado, encontramos níveis mais baixos de MCP-1 em pacientes com HVE (105 pg/mL [100 - 260 pg/mL] versus 136 pg/mL [100 - 200 pg/mL], respectivamente, p = 0,005] em comparação a pacientes sem HVE. Um modelo de regressão logística ajustado para o índice de massa corporal (IMC), idade, raça, níveis de aldosterona e presença de diabetes e HR mostrou que os níveis medianos de MCP-1 (2,55 pg/mL [1,22 - 5,2 pg/mL], p = 0,01) estiveram independentemente associados com HVE em toda a população de hipertensos. Conclusão: Como os níveis de MCP-1 foram semelhantes em indivíduos tanto com HR quanto HAS e estiveram diminuídos em pacientes hipertensos com HVE, nosso estudo sugere uma possível redução nos níveis de MCP-1 em indivíduos hipertensos com HVE, independe do grau da hipertensão.