ABSTRACT
Objective To observe the effect of supplemental Revolvin D1 (RvD1) on Toll-like receptor 4 (TLR4) in skeletal muscle of type 2 diabetic mice.Methods 35 male C57BL/6 mice were randomly divided into control group (NC group) and high glucose and high fat diet group.After 8 weeks,mice in high glucose and high fat diet group were given intraperitoneal injection of streptozotocin (STZ) 100 mg/ kg.Then they were randomly divided into two groups:Type 2 diabetes group (T2DM group) and type 2 diabetes + RvD1 intervention group (T2DM + RvD1 group).Mice in T2DM group mice were injected with phosphate buffer saline 0.2 ml and T2DM + RvD1 group mice were injected with Revolvin D1 100 ng/day respectively.The levels of fasting blood glucose,serum insulin and inflammatory factors were detected.The mRNA expression level of TLR4 was detected by real-time quantitative polymerase chain reaction (RT-qPCR) method,and the expression of TLR4 protein was detected by Western blot.Results The levels of insulin resistance index,interleukin(IL)-6 and tumor necrosis factor-α (TNF-α) in T2DM group and T2DM + RvD1 group increased (P ＜ 0.05).Compared with the T2DM group,the levels of insulin resistance index,IL-6 and TNF-α in T2DM + RvD1 group decreased (P ＜0.05).The expression of TLR4 protein in T2DM group and T2DM + RvD1 group was higher than that in NC group (P ＜ 0.05).The expression of TLR4 protein in T2DM + RvD1 group,was lower than that in T2DM group (P ＜0.05).The mRNA level of TLR4 in mice was consistent with the above results by RT-qPCR.Conclusions Moderate supplementation of RvD1 can not only decrease the level of inflammatory factors in type 2 diabetic mice,but also reduce the expression of TLR4 and insulin resistance in skeletal muscle of type 2 diabetic mice.
ABSTRACT
Objective To evaluate the value of stroke prognostication using age and National Institute of Health Stroke Scale index (SPAN) for outcome after early endovascular treatment for anterior circulation large vessel occlusion.Methods The patients who underwent early endovascular treatment were prospectively,sequentially collected in Yijishan Hospital of Wannan Medical College from December 2014 to September 2017 and Jinling Hospital from March 2014 to March 2017.Individuals whose age in years plus NIHSS score was greater than or equal to 100 were designated as SPAN-100-positive patients,while those with a score less than 100 were designated as SPAN-100-negative patients.We compared the baseline data and perioperative data between the two groups.The 90 days modified Rankin Scale score≤2 was regarded as favorable outcome.Single factor and multivariable Logistic regression analyses were used to determine the association between SPAN-100 and outcomes.Results One hundred and ninety patients were enrolled,20 (10.5％) of which were SPAN-100 positive,and 170(89.5％) were SPAN-100 negative.There were no significant differences between the two groups on postoperative intracerebral hemorrhage and 90 days mortality.Ninety days independence rates were higher in SPAN-100-negative patients (77/170,45.3％) than in SPAN-100 positive patients (4/20,20.0％;x2 =4.681,P =0.030).Multi-factor Logistic regression analysis showed that the higher preoperation systolic pressure (OR =1.030,95％ CI 1.008-1.052,P =0.007),the lower Alberta Stroke Program Early CT Score (OR =1.609,95％ CI 1.056-2.453,P =0.027) and poor collateral circulation(OR =5.714,95％ CI 1.668-19.570,P =0.006) were the independent risk factors of outcomes.Conclusion SPAN-100 is not an independent predictor of favorable outcome after adjusting for factors of outcomes in patients with anterior circulation large vessel occlusion.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of emodin on proliferation and cell cycle distribution of human oral squamous carcinoma cells in vitro.</p><p><b>METHODS</b>Cultured human oral squamous carcinoma Tca8113 cells were treated with 2.5, 5, 10, 20, 40, 60 and 80 µmol/L emodin for 24, 48 or 72 h, with the cells treated with 0.1% DMSO as control. MTT assay and flow cytometry were used to evaluate the changes in cell proliferation and cell cycle distribution, respectively. Western blotting was employed to analyze the changes in the expression levels of the cell cycle-related proteins CDK2, cyclin E and P21 after emodin treatment.</p><p><b>RESULTS</b>Emodin significantly inhibited the growth and proliferation of Tca8113 cells within 72 h in a time- and dose-dependent manner, and caused cell cycle arrest in G0-G1 phase. Western blotting revealed that emodin treatment significantly lowered the expression levels of CDK2, cyclin E and P21 proteins in Tca8113 cells (P<0.05).</p><p><b>CONCLUSION</b>Emodin can inhibit the proliferation of Tca8113 cells and affect their cell cycle distribution possibly by inhibiting the signaling pathways of cell cycle regulation.</p>
Subject(s)
Humans , Carcinoma, Squamous Cell , Pathology , Cell Cycle , Cell Line, Tumor , Cell Proliferation , Cyclin E , Metabolism , Cyclin-Dependent Kinase 2 , Metabolism , Cyclin-Dependent Kinase Inhibitor p21 , Metabolism , Emodin , Pharmacology , Mouth Neoplasms , Pathology , Oncogene Proteins , Metabolism , Signal TransductionABSTRACT
Objective:To investigate the relationship of H pylori with cholecystolithiasis,to collect the evidence of Hp existing in biliary tract,and to study the detective method of Hp DNA in billiary tract.Methods:Hp which existing in bile,mucosa and gallstone of 120 cholecystolithiasis patients were cultured according to the literature.Then they were amplified by the primer of Ure A and cagA.Amplified products were analyzed.Results:All of the 120 samples were negative.No Hp grew in the medium.No Hp DNA and Hp Cag A antibody were found with PCR method.Conclusion:(1) It was restricted by many factors that Hp DNA in bile and gallstone wereexamined with PCR.(2) Hp maybe entered biliary tract regressively through Oddi's sphincter andhad no relationship with cholecystolithiasis.
ABSTRACT
Objective:To investigate the effects of Genistein and Tyrphostin AG1478 on the proliferation of colon cancer cell HT-29 and its possible mechanism.Methods:The effect of two tyrosine kinase inhibitors (TKIs) on HT-29 cell lines was studied by using MTT assay.Immunocytochemical staining was performed with PCNA polyclonal antibody in HT-29 cells.Western blot assay was used to detect the expression of ERK-1 and pERK.Results:Both Genistein and Tyrphostin AG1478 significantly inhibit the growth of HT-29 cells and showed concentration dependence.Two tyrosine kinase inhibitors suppressed PCNA expression.Western blot revealed that Genistein and Tyrphostin not inhibit ERK-1 expression but inhibit phosphorylation of ERK.Conclusion:Tyrosine kinase inhibitors Genistein and Tyrphostin AG1478 can inhibit the growth of HT-29 colon cancer cells,the anti-proliferation mechanism may be related to down-regulate the expression of pERK.