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<p><b>OBJECTIVE</b>To investigate interleukin-33 (IL-33) in the arterial vascular endothelium of rabbits infected with Porphyromonas gingivalis (P. gingivalis), and to explore the relationship between P. gingivalis and atherosclerosis.</p><p><b>METHODS</b>A total of 24 rabbits were randomly divided into control and experimental groups. The experimental group received intravenous injection of P. gingivalis once a week for 12 weeks to establish a coronary atherosclerosis model. The rabbits in the control group were injected with equal volume of physiological saline. All the rabbits were killed after 13 weeks. The IL-33 expression levels in the arterial vascular endothelium of the rabbits were detected through immunohistochemistry, reverse transcription polymerase chain reaction, and Western blot analysis. The effects of P. gingivalis on the IL-33 expression in the arterial vascular endothelium of the rabbits were analyzed.</p><p><b>RESULTS</b>The relative expression levels of IL-33 mRNA in the vascular endothelium cells were 58.244±2.407, and the relative expression levels of IL-33 protein were 1.863±0.171 in the experimental group. The relative expression levels of IL-33 mRNA were 3.143±0.805, and the relative expression levels of IL-33 protein were 0.537± 0.028 in the control group. The expression levels of IL-33 mRNA and protein of vascular endothelium cells in the experimental group were significantly higher than those of the control group (P<0.01).</p><p><b>CONCLUSIONS</b>P. gingivalis infection promotes IL-33 expression levels in vascular endothelial cells and may regulate the occurrence and development of atherosclerosis. .</p>
Subject(s)
Animals , Humans , Rabbits , Atherosclerosis , Endothelial Cells , Endothelium , Endothelium, Vascular , Interleukin-33 , Interleukins , Porphyromonas gingivalisABSTRACT
Objective In this research,the relationship between blood estrogen level and salivary glands of female rat was studied.Methods Thirty-two female Wister rats were randomly divided into four groups:control group,sham operation group,ovariectomized and injected estradiol benzoate group and ovariectomized group.Menopausal rat model was established by ovariectomy.By testing E2,histological examination and examing Cu,Zn-SOD expression through immunochemical staining,we studied the effects of estrogen decreasing on female rat salivary.Results Compared with control group,sham operation group,ovariectomized and injected estradiol benzoate group,a significant decrease in scrum estrogen level was observed in ovariectomized group(P
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Objective To investigate the relationship of serum uric acid level to the risk of coronary artery disease in young adults.Methods One hundred and fifty six young adults(≤45 years) hospitalized in Peking University First Hosipital during January 2005 to April 2008 were divided into coronary heart disease(CHD) group(96 cases) and control group(60 cases),according to coronary angiography.The CHD group was then sub-divided into 3 groups: single-vessel group(n=55),double-vessel group(n=21) and multi-vessel group(n=20).The relationship of serum uric acid level to the risk of CHD was analyzed.Results The serum uric acid level in CHD group was higher than that in control group(347.3?77.8 ?mol/L vs 306.1?76.6 ?mol/L,P
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360 min,the risk of no-reflow phenomenon was decreased in patients with SOTB≤360 min(OR=0.2,95% CI:0.0-1.0,P=0.045).(2) Obesity was identified as an independent risk factor for peak concentration of CK-MB(?=117.3,95% CI:12.1-222.6,P=0.029).(3) Age(above 60 years old),obesity,and preprocedural Killip classification were identified as independent risk factors for postprocedural LVEF.Old age(?=-6,95% CI:-9.7--2.2,P=0.002) and obesity(?=-3.8,95% CI:-7.6--0.1,P=0.044)were associated with low LVEF but preprocedural cardiac function of Killip Class Ⅰ was associated with high LVEF(?=4.9,95% CI:0.4～9.4,P=0.033).(4) Preprocedural Killip classification and multivessel disease were independent predictors for major adverse cardiac event in the follow-up period.The risk of major adverse cardiac event during follow-up decreased in patients with preprocedural Killip class I compared with patients with Killip class Ⅱ~Ⅳ(OR=0.1,95% CI:0.0-0.7,P=0.022),but the risk increased in patients with multivessel disease compared with those who had single vessel disease(OR=10.5,95% CI:1.1-99.4,P=0.041).Conclusion The clinical outcomes and prognosis of patients with AMI treated with primary PCI were associated with a variety of risk factors including age,obesity,multivessel disease,and preprocedural cardiac function.In addition,SOTB was related to postprocedural TIMI flow in patients with AMI undergoing primary PCI.