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Puerarin prevents vascular endothelial injury through suppression of NF-κB activation in LPS-challenged human umbilical vein endothelial cells.

In the present study, we aimed to explore the effects of puerarin on vascular endothelial cell injury induced by lipopolysaccharide (LPS) and its underlying mechanisms.

1334 related Products with: Puerarin prevents vascular endothelial injury through suppression of NF-κB activation in LPS-challenged human umbilical vein endothelial cells.

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Dachengqi Decoction Attenuates Intestinal Vascular Endothelial Injury in Severe Acute Pancreatitis in Vitro and in Vivo.

Dachengqi decoction (DCQD) is a well-known traditional Chinese herbal drug with strong anti-inflammatory effects. Angiopoietin-1 (Ang-1) plays a vital role in maintaining the stability and integrity of the vascular wall and prevents vascular leakage due to inflammatory mediators. Our previous work found that DCQD protects against pancreatic injury in rats with severe acute pancreatitis (SAP). This study aims to investigate the effects of DCQD on intestinal endothelial damage in both damaged human umbilical vein endothelial cells (HUVECs) and SAP rats.

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Effect of the Diabetic Environment On the Expression of MiRNAs in Endothelial Cells: Mir-149-5p Restoration Ameliorates the High Glucose-Induced Expression of TNF-α and ER Stress Markers.

This study aimed to screen microRNAs and their corresponding target genes that are associated with vascular injury in type two diabetes mellitus (T2DM), investigate the effects of differentially expressed miRNAs and their target genes on high glucose-induced vascular injury and establish the mechanism underlying these effects.

1811 related Products with: Effect of the Diabetic Environment On the Expression of MiRNAs in Endothelial Cells: Mir-149-5p Restoration Ameliorates the High Glucose-Induced Expression of TNF-α and ER Stress Markers.

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Lipoprotein-associated phospholipase A2, myeloperoxidase and vascular endothelial growth factor - predictors of high vascular risk in respiratory bacterial infections.

Respiratory bacterial infections are associated with important coagulation disturbances that amplify the pulmonary lesions and determine a more severe course of the disease. The aim of our study was to investigate the correlation between the evolution of the general clinical parameters and the occurrence of thrombotic events on one side, and plasma levels of selected proteins involved in inflammation and coagulation on the other side, with the intent to establish and to validate a laboratory test panel for the assessment of the vascular risk in patients with bacterial respiratory infections. The study included 111 patients (divided into two groups, 61 without thrombosis and 50 with thrombosis) with bacterial respiratory infections and 30 healthy controls, age and gender-matched. The baseline evaluation of the patients included clinical, biological, and respiratory examination. LpPLA2 and MPO activities were measured by the spectrophotometric method. VEGF was quantified with an ELISA kit. The collected data showed a correlation between the occurrence of superimposed thrombosis in respiratory infection patients, and the intensity of the inflammatory process, reflected by the increased MPO activity, and the dynamics of LpPLA2 and VEGF. Bacterial respiratory infections associate thrombotic vascular events of various degrees of severity, which correlate with the intensity of the inflammatory process, and the severity of endothelium dysfunction at the level of microcirculation. Starting from the recorded data, and based on the established severity scales in use, it is possible to compute a vascular risk score that takes into consideration the values of the three biomarkers under investigation. COPD = chronic obstructive pulmonary disease,hsCRP = high sensitivity C reactive protein,EC = endothelial cells, ICAM-1 = intercellular adhesion molecule1, LpPLA2 = lipoprotein-associated phospholipase A2, MPO = myeloperoxidase,NK cells = natural killer cells,VEGF = vascular endothelial growth factor, VCAM-1 = vascular cell adhesion molecule 1.

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Dendritic cell vaccination enhances antiangiogenesis induced by endostatin in rat glioma.

It has been verified that dendritic cell (DC) vaccination can improve the prognosis of malignant glioma. However, recent evidence suggests the problems with DC vaccines lies, at least in part, with the cancers ability to induce an immunosupressive response that suppresses any vaccine-mediated active immunity. Our previous studies indicate that subcutaneous vaccine can restrain the cancer cells implanted in the brain, but the effect is limited on vascularized tumor in the brain. Furthermore, vascular endothelial growth factor (VEGF) and vascular cell adhesion molecule (VCAM) play an important role in immunoevasion.

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Effects of desloratadine citrate disodium injection on rat models of ovalbumin-induced allergic rhinitis: involvement of T-cell responses modulation.

Allergic rhinitis (AR) is a very common worldwide problem; patients display a number of symptoms, such as sneezing, nasal itching, and rhinorrhea, and their lifestyle is affected. Desloratadine is a novel, long-acting inhibitor of histamine. However, very little is known about the effect of desloratadine citrate disodium injection (DLC injection) on AR, and the underlying mechanisms are yet unexplored. Herein, we sought to explore the effects and mechanisms of actions of DLC injection in ovalbumin (OVA)-induced immune responses in a rat model of AR.

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Transglutaminase 2 expressed in mast cells recruited into skin or bone marrow induces the development of pediatric mastocytosis.

Mastocytosis is characterized by a pathological increase in mast cells in organs such as skin and bone marrow. Transglutaminase 2 (TG2) expressed in mast cells contributes to allergic diseases, but its role in mastocytosis has not been investigated. This study aimed to investigate whether TG2 contributes to pediatric mastocytosis.

1766 related Products with: Transglutaminase 2 expressed in mast cells recruited into skin or bone marrow induces the development of pediatric mastocytosis.

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Sesamin inhibits lipopolysaccharide-induced proliferation and invasion through the p38-MAPK and NF-κB signaling pathways in prostate cancer cells.

Sesamin, a lipid-soluble lignan, is one of the major constituents of sesame. Previous studies have reported that sesamin induces growth inhibition in human cancer cells, particularly prostate cancer cells. In the present study, we mainly explored the mechanism underlying the protective effect of sesamin on prostate cancer cell proliferation and invasion induced by lipopolysaccharide (LPS). We found that the proliferation of PC3 cells, as determined using the MTT assay, and the expression of cyclin D1, COX-2, Bcl-2 and survivin proteins elevated by LPS were distinctly inhibited by sesamin in a dose-dependent manner. Meanwhile, the ability of PC3 cell invasion, as determined using the Transwell assay and the expression of matrix metalloproteinase 9 (MMP-9), intercellular adhesion molecule-1 (ICAM-1) and vascular endothelial growth factor (VEGF) proteins increased by LPS were obviously reduced by sesamin in a dose-dependent manner. In addition, the accumulation of TGF-α and interleukin-6 (IL-6) production induced by LPS in the culture supernatant was found to be decreased dose-dependently with sesamin pretreatment in PC3 cells using the enzyme-linked immunosorbent assay (ELISA) kit. Furthermore, phosphorylation of the p38 protein and nuclear factor (NF)-κB activity in the PC3 cells were enhanced by LPS and further inhibited with sesamin, SB203580 pretreatment or p38-siRNA transfection, respectively. Sesamin or SB203580 pretreatment obviously inhibited PC3 cells-derived tumor growth induced by LPS in vivo. Taken together, these results suggest that the potential ability of sesamin to downregulate the secretion of cytokines and the expression of cell proliferative- and invasive-related gene products induced by LPS was shown to be via the p38 mitogen-activated protein kinase (p38-MAPK) and NF-κB signaling pathways, which may be one of the mechanisms of the anticancer activity of this sesamin agent in prostate cancer cells.

2159 related Products with: Sesamin inhibits lipopolysaccharide-induced proliferation and invasion through the p38-MAPK and NF-κB signaling pathways in prostate cancer cells.

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Attenuation of cardiac hypertrophy by G-CSF is associated with enhanced migration of bone marrow-derived cells.

Granulocyte-colony stimulating factor (G-CSF) has been shown to promote mobilization of bone marrow-derived stem cells (BMCs) into the bloodstream associated with improved survival and cardiac function after myocardial infarction. Therefore, the aim of the present study was to investigate whether G-CSF is able to attenuate cardiac remodelling in a mouse model of pressure-induced LV hypertrophy focusing on mobilization and migration of BMCs. LV hypertrophy was induced by transverse aortic constriction (TAC) in C57BL/6J mice. Four weeks after TAC procedure. Mice were treated with G-CSF (100 μg/kg/day; Amgen Biologicals) for 2 weeks. The number of migrated BMCs in the heart was analysed by flow cytometry. mRNA expression and protein level of different growth factors in the myocardium were investigated by RT-PCR and ELISA. Functional analyses assessed by echocardiography and immunohistochemical analysis were performed 8 weeks after TAC procedure. G-CSF-treated animals revealed enhanced homing of VLA-4(+) and c-kit(+) BMCs associated with increased mRNA expression and protein level of the corresponding homing factors Vascular cell adhesion protein 1 and Stem cell factor in the hypertrophic myocardium. Functionally, G-CSF significantly preserved LV function after TAC procedure, which was associated with a significantly reduced area of fibrosis compared to control animals. Furthermore, G-CSF-treated animals revealed a significant improvement of survival after TAC procedure. In summary, G-CSF treatment preserves cardiac function and is able to diminish cardiac fibrosis after induction of LV hypertrophy associated with increased homing of VLA-4(+) and c-kit(+) BMCs and enhanced expression of their respective homing factors VCAM-1 and SCF.

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Involvement of activation of C-met signaling pathway in CD151-induced HUVECs angiogenesis.

CD151 is a member of the tetraspanin family that is implicated as a promoter of pathological or physiological angiogenesis. C-Met is expressed on a variety of cells including vascular endothelial cells (VECs) and up-regulated during angiogenesis. In this study, we investigated whether CD151 regulated migration, proliferation, tube formation and angiogenesis of human umbilical VECs (HUVECs) with activation of C-Met. Moreover, we studied whether CD151 could affect the angiogenic molecules such as nitric oxide (NO), vascular cell adhesion molecule-1 (VCAM-1) and vascular endothelial growth factor (VEGF). The expression of CD151 was determined by Western blotting. The cell proliferation assay was performed using the cell counting kit-8 (CCK-8) method and cell migration was assessed in microchemotaxis chambers by using fetal bovine serum (FBS) as the chemotactic stimulus. The angiogenic molecules were evaluated using ELISA. The NO level was detected using NO detection kit. The potential involvement of various signaling pathways was explored using relevant antibodies. We found that proliferation, migration and tube formation of HUVECs were promoted by CD151 with activation of C-Met, FAK and CDC42, while they were suppressed with CD151 knockdown by RNAi. Similarly, the levels of NO, VCAM-1 and VEGF in HUVECs were increased by CD151, but they were inhibited with CD151 knockdown by RNAi. These data suggested that CD151 could promote migration, proliferation, tube formation and angiogenesis of HUVECs, which was possibly related to the C-Met signaling pathways.

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