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Objective To investigate the relationship between serum levels of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMP) and the mortality in patients with malignant middle cerebral artery infarction.Methods A total of 74 patients with malignant middle cerebral artery infarction (MMCAI) was assigned to research group,74 healthy volunteers were recruited to serve as healthy controls,and 242 patients with other cerebral infarction were recruited to serve as case controls.Quality-of-life questionnaire and clinical examination were used to collect the information of participants.Endpoint was 30-day mortality.Results The research group showed higher serum levels of MMP-9,MMP-10,and TIMP-1 relative to the case control group,and the case control group showed higher serum levels of MMP-9,MMP-10,and TIMP-1 relative to the healthy control group (P ＜ 0.05).Compared to survivor ones,non-surviving MMCAI patients showed lower Glasgow Coma Scale score (P ＜ 0.05),higher serum levels of tumor necrosis factorα (TNF-α),MMP-9,MMP-10,and TIMP-1 (P ＜ 0.05).Multiple logistic regression analysis showed that serum levels of TNF-α,MMP-9,MMP-10,and TIMP-1 were associated with 30-day mortality,and the OR were 1.09,1.18,1.13,and 1.32,respectively.Conclusions Serum levels of MMP-9,MMP-10,and TIMP-1 levels in MMCAI patients were associated with mortality,and could be used as an auxiliary index of mortality in MMCAI patients.
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Objective To observe the effect of tetramethylpyrazine (TMP) on serum interleukin 8 (IL-8),interleukin 12 ( IL-12) and interleukin 33 ( IL-33) levels and MMP-10 and NF-κB protein expression in joint synovial tissues in rats with collagen-induced arthritis ( CIA) ,and further to investigate the mechanism for treating rheumatoid arthritis. Methods Rats were randomly divided into normal control group( n=10) ,model control group,dexamethasone group,low-dose of TMP and high-dose of TMP groups ( n=9 each) . The CIA model was established in all the groups except for the normal control group. Rats of dexamethasone group were give 2 mg.kg-1 of dexamethasone;Rats of low-dose and high-dose of TMP group were given 50,100 mg.kg-1 of TMP, respectively.The toe volume and arthritis index (AI) were used to evaluate joint inflammation. The levels of IL-8,IL-12 and IL-33 in the serum of rats were detected by ELISA. The expression levels of MMP-10 and NF-κB in joint synovial were detected by Western blotting. Results Compared with CIA group,the toe volume and AI were significantly reduced in high-dose of TMP groups and dexamethasone groups,and levels of IL-8,IL-12 and IL-33 and the expression levels of MMP-10 and NF-κB were decreased significantly (P0.05). Conclusion TMP at 100 mg.kg-1 showed obvious inhibition on CIA rats. The mechanism may be correlated to balancing the effect of proinflammatory factor and anti-inflammatory cytokines,improving immune function in rats,reducing joint synovial inflammation,and alleviating the destruction of the articular cartilage.
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Objective Matrix metalloproteinase-10 (MMP-10) has been shown to be highly associated with atherosclerosis.Recent studies showed that levels of MMP-10 were elevated in infarcted tissues in acute ischemic stoke.However,serum levels of MMP-10 in patients with acute ischemic stroke have never been studied previously.This study aims to investigate the serum levels of MMP-10 in patients with acute ischemic stroke,and evaluate the association of serum levels of MMP-10 with stroke subtypes based on Trial of Org 10 172 in acute stroke treatment classifications,the severity of stroke,risk factors and carotid artery plaque.Methods The circulating levels of MMP-10 were measured by enzyme linked immunosorbent assay in 194 subjects,including 109 patients who were diagnosed as acute ischemic stroke in the Department of Neurology,Shengjing Hospital,China Medical University from April to December 2012,and the 85 healthy controls.Results Patients with acute ischemic stroke had higher serum levels of MMP-10 compared with healthy controls (6.59 (6.07,7.31) μg/L vs 5.16 (3.87,5.94) μg/L,Z =8.33,P ＜ 0.01).NIHSS score had positive correlation with serum levels of MMP-10 (r =0.204,P =0.037).Classified by risk factors,we compared the MMP-10 levels of subsets,and results displayed that statistically significant difference existed between dyslipidemia subset and non-dyslipidemia subset (Z =2.07,P =0.042).MMP-10 levels had positive correlation with serum levels of LDL-cholesterol (r =0.248,P =0.040),but negative correlation with thrombin-activatable fibrinolysis inhibitor (TAFI;r =-0.208,P =0.030).The subset with unstable plaques had higher MMP-10 levels than that with stable plaque (6.62 (6.13,7.36) μg/L) vs 6.10 (6.00,6.46) μg/L,Z =2.12,P =0.034),implying the relationship of MMP-10 and atherosclerosis.Conclusions Patients with acute ischemic stroke have higher serum levels of MMP-10 compared with the healthy controls,and MMP-10 levels have positive correlation with the severity of stroke.MMP-10 is associated with the subtypes of stroke classified by risk factors,and dyslipidemia subset has higher levels of MMP-10 than that of non-dyslipidemia subset.MMP-10 has positive correlation with LDL-cholesterol,but negative correlation with TAFI.MMP-10 may be involved in the process of formation and disruption of unstable plaques,which contribute to the stenosis of arteries and onset of acute ischemic stroke.
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Objective To explore the expression of matrix metalloproteinase-3 (MMP-3) and matrix metalloproteinase-10 (MMP-10) in normal endometrium, atypical hyperplasia and endometrial adenocarcinoma. We aimed to study the relationship of MMP-3 and MMP-10 expressions with infiltration depth, histologic grade and clinical phase in order to explore the role of MMP-3 and MMP-10 in the occurrence, infiltration and metastasis of endometrial adenocarcinoma. Methods The expressions of MMP-3 and MMP-10 were measured by immunohistochemistry in 12 cases of normal endometrium, 12 cases of atypical hyperplasia and 42 cases of endometrial adenocarcinoma. Results The expression of MMP-3 was 73.8% (31/42), 25.0% (3/12) and 8.3% (1/12) in endometrial adenocarcinoma, atypical hyperplasia and normal endometrium, respectively, whereas the expression of MMP-10 was 76.2% (32/42), 33.3% (4/12) and 0(0/12), respectively. Both MMP-3 and MMP-10 expressions exhibited a pattern of decreased intensity in endometrial carcinoma, atypical hyperplasia and normal endometrium. Furthermore, the statistical analysis showed that the expression of both proteins was significantly greater in endometrial carcinoma than in atypical hyperplasia and normal tissue (P<0.01). Expressions of MMP-3 and MMP-10 had a significant correlation with such clinical parameters as histologic grade, depth of myometrial infiltration and clinical stage (P<0.01). Conclusion MMP-3 and MMP-10 can be used as tumor markers of endometrial carcinoma, and the combined detection of them can increase the detection rate of endometrial carcinoma.