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https://www.readbyqxmd.com/read/28648478/imaging-vulnerable-plaques-by-targeting-inflammation-in-atherosclerosis-using-fluorescent-labeled-dual-ligand-microparticles-of-iron-oxide-and-magnetic-resonance-imaging
#1
Joyce M S Chan, Claudia Monaco, Marzena Wylezinska-Arridge, Jordi L Tremoleda, Jennifer E Cole, Michael Goddard, Maggie S H Cheung, Kishore K Bhakoo, Richard G J Gibbs
OBJECTIVE: Identification of patients with high-risk asymptomatic carotid plaques remains an elusive but essential step in stroke prevention. Inflammation is a key process in plaque destabilization and a prelude to clinical sequelae. There are currently no clinical imaging tools to assess the inflammatory activity within plaques. This study characterized inflammation in atherosclerosis using dual-targeted microparticles of iron oxide (DT-MPIO) as a magnetic resonance imaging (MRI) probe...
June 22, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28646244/increased-soluble-vcam-1-and-normal-p-selectin-in-cystic-fibrosis-a-cross-sectional-study
#2
Jan K Nowak, Irena Wojsyk-Banaszak, Edyta Mądry, Andrzej Wykrętowicz, Patrycja Krzyżanowska, Sławomira Drzymała-Czyż, Agata Nowicka, Andrzej Pogorzelski, Ewa Sapiejka, Wojciech Skorupa, Mariusz Szczepanik, Aleksandra Lisowska, Jaroslaw Walkowiak
PURPOSE: As life expectancy in cystic fibrosis (CF) increases, questions regarding its potential impact on cardiovascular health arise. Soluble vascular cell adhesion molecule 1 (sVCAM-1), P-selectin (sP-selectin) are proposed as biomarkers of cardiovascular disease. We aimed to: compare their concentrations in clinically stable CF patients and healthy subjects (HS) and verify whether they independently correlate with CF characteristics. METHODS: Serum sVCAM-1 and sP-selectin levels were measured using ELISA...
June 23, 2017: Lung
https://www.readbyqxmd.com/read/28646109/bone-morphogenetic-protein-bmp-9-and-bmp10-enhance-tumor-necrosis-factor-%C3%AE-induced-monocyte-recruitment-to-the-vascular-endothelium-mainly-via-activin-receptor-like-kinase-2
#3
Claudia-Gabriela Mitrofan, Sarah L Appleby, Gerard B Nash, Ziad Mallat, Edwin R Chilvers, Paul D Upton, Nicholas W Morrell
Bone morphogenetic proteins 9 and 10 (BMP9/BMP10) are circulating cytokines with important roles in endothelial homeostasis. The aim of this study was to investigate the roles of BMP9 and BMP10 in mediating monocyte-endothelial interactions using an in vitro flow adhesion assay. Herein, we report that while BMP9/BMP10 alone had no effect on monocyte recruitment, at higher concentrations both cytokines synergised with Tumor necrosis factor-α (TNFα) to increase recruitment to the vascular endothelium. The BMP9/BMP10-mediated increase in monocyte recruitment in the presence of TNFα was associated with upregulated expression levels of E-selectin, VCAM-1 and ICAM-1 on endothelial cells...
June 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28641786/association-of-apolipoprotein-ciii-apoc-iii-endothelium-dependent-vasodilation-and-peripheral-neuropathy-in-a-multi-ethnic-population-with-type-2-diabetes
#4
Sharon Li Ting Pek, Chee Fang Sum, Lee Ying Yeoh, Simon Biing Ming Lee, Wern Ee Tang, Su Chi Lim, Subramaniam Tavintharan
BACKGROUND: Diabetic peripheral neuropathy (DPN) is a common complication of Type 2 diabetes (T2D). Apart from hyperglycemia, its pathogenesis is poorly understood. Apolipoprotein-CIII (apoC-III) associated with triglyceride metabolism, is a risk factor for cardiovascular disease. Its role in DPN is not well-established. We studied the associations of apoC-III, endothelial function and DPN. METHODS: In patients with T2D, anthropometric data, fasting blood, and urine were collected for biochemistry and urine albumin/creatinine measurements (uACR)...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28638152/combination-of-a-high-fat-diet-with-sweetened-condensed-milk-exacerbates-inflammation-and-insulin-resistance-induced-by-each-separately-in-mice
#5
Laureane Nunes Masi, Amanda Roque Martins, Amanda Rabello Crisma, Cátia Lira do Amaral, Mariana Rodrigues Davanso, Tamires Duarte Afonso Serdan, Roberta Dourado Cavalcante da Cunha de Sá, Maysa Mariana Cruz, Maria Isabel Cardoso Alonso-Vale, Rosângela Pavan Torres, Jorge Mancini-Filho, Joice Naiara Bertaglia Pereira, Marta Maria da Silva Righetti, Edson Aparecido Liberti, Sandro Massao Hirabara, Rui Curi
Obesogenic diets increase body weight and cause insulin resistance (IR), however, the association of these changes with the main macronutrient in the diet remains to be elucidated. Male C57BL/6 mice were fed with: control (CD), CD and sweetened condensed milk (HS), high-fat (HF), and HF and condensed milk (HSHF). After 2 months, increased body weight, glucose intolerance, adipocyte size and cholesterol levels were observed. As compared with CD, HS ingested the same amount of calories whereas HF and HSHF ingested less...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637896/technical-advance-new-in-vitro-method-for-assaying-the-migration-of-primary-b-cells-using-an-endothelial-monolayer-as-substrate
#6
Phillip J Stewart-Hutchinson, Taylor P Szasz, Emily R Jaeger, Michael D Onken, John A Cooper, Sharon Celeste Morley
Migration of B cells supports their development and recruitment into functional niches. Therefore, defining factors that control B cell migration will lead to a better understanding of adaptive immunity. In vitro cell migration assays with B cells have been limited by poor adhesion of cells to glass coated with adhesion molecules. We have developed a technique using monolayers of endothelial cells as the substrate for B cell migration and used this technique to establish a robust in vitro assay for B cell migration...
June 21, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28632765/ctrp3-is-a-novel-biomarker-for-diabetic-retinopathy-and-inhibits-hghl-induced-vcam-1-expression-in-an-ampk-dependent-manner
#7
Zheyi Yan, Jianli Zhao, Lu Gan, Yanqing Zhang, Rui Guo, Xiaoming Cao, Wayne Bond Lau, Xin Ma, Yajing Wang
OBJECTIVES: Diabetic retinopathy (DR) is a severe complication of chronic diabetes. The C1q/TNF-related protein family (CTRPs) has been demonstrated to exert protective effects against obesity and atherosclerosis in animal studies. Heretofore, the association between circulating CTRPs and DR patients has been unexplored. In the current study, we attempt to define this association, as well as the effect of CTRPs upon DR pathophysiology. DESIGN: The present investigation is a case control study that enrolled control subjects and type 2 diabetes mellitus (T2DM) patients diagnosed with DR...
2017: PloS One
https://www.readbyqxmd.com/read/28629534/heparin-derived-oligosaccharide-inhibits-vascular-intimal-hyperplasia-in-balloon-injured-carotid-artery
#8
Jie-Ru Liu, Jie Wu, Xin-Chao Yu, Xuan Qian, Rui Xiong, Hui-Fang Wang, Dan-Feng Yu, Fei-Fei Liu, Shu-Ying He
The aims of the present study were to determine the effects of heparin-derived oligosaccharides (HDOs) on vascular intimal hyperplasia (IH) in balloon-injured carotid artery and to elucidate the underlying mechanisms of action. An animal model was established by rubbing the endothelia within the common carotid artery (CCA) in male rabbits. The rabbits were fed a high-cholesterol diet. Arterial IH was determined by histopathological changes to the CCA. Serum lipids were detected using an automated biochemical analysis...
June 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28628621/time-course-of-vcam-1-expression-in-reperfused-myocardial-infarction-in-swine-and-its-relation-to-retention-of-intracoronary-administered-bone-marrow-derived-mononuclear-cells
#9
André Uitterdijk, Bianca C W Groenendijk, Charlotte Gorsse-Bakker, Anna Panasewicz, Stefan Sneep, Dennie Tempel, Esther H van de Kamp, Daphne Merkus, Willem J van der Giessen, Dirk J Duncker
BACKGROUND: Intracoronary infusion of autologous bone marrow-derived mononuclear cells (BMMNC), after acute myocardial infarction (AMI), has been shown to improve myocardial function. However, therapeutic efficacy is limited, possibly because cell retention rates are low, suggesting that optimization of cell retention might increase therapeutic efficacy. Since retention of injected BMMNC is observed only within infarcted, but not remote, myocardium, we hypothesized that adhesion molecules on activated endothelium following reperfusion are essential...
2017: PloS One
https://www.readbyqxmd.com/read/28627266/anti-inflammatory-effect-of-a-powder-formulation-of-coconut-inflorescence-sap-against-ox-ldl-induced-inflammatory-responses-in-human-peripheral-blood-mononuclear-cells-by-modulating-tlr-nf-%C3%B2-b-signaling-pathway
#10
Ratheesh M, Svenia P Jose, Asha S, Sandya S, Girish Kumar B, Krishnakumar Im
An inflammatory response induced by oxidized low density lipoprotein (ox-LDL) was reported to play an important role in the pathogenesis of atherosclerosis. The purpose of this study was to explore the anti-inflammatory effect of a novel powder formulation of coconut inflorescence sap (CSP) against ox-LDL induced inflammatory responses in human peripheral blood mononuclear cells (hPBMCs). The hPBMCs were isolated from healthy human volunteers and cultured in collagen coated plates at 37°C. The cells were grouped as Group I (Control), Group II (ox-LDL treated) and Group III (ox-LDL+CSP treated)...
June 19, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28626366/current-developments-in-mobilization-of-hematopoietic-stem-and-progenitor-cells-and-their-interaction-with-niches-in-bone-marrow
#11
REVIEW
Rudolf Richter, Wolfgang Forssmann, Reinhard Henschler
The clinical application of hematopoietic stem and progenitor cells (HSPCs) has evolved from a highly experimental stage in the 1980s to a currently clinically established treatment for more than 20,000 patients annually who suffer from hematological malignancies and other severe diseases. Studies in numerous murine models have demonstrated that HSPCs reside in distinct niches within the bone marrow environment. Whereas transplanted HSPCs travel through the bloodstream and home to sites of hematopoiesis, HSPCs can be mobilized from these niches into the blood either physiologically or induced by pharmaceutical drugs...
June 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/28624443/inhibitory-effect-of-trans-caryophyllene-tc-on-leukocyte-endothelial-attachment
#12
Zhen Zhang, Chunfeng Yang, Xinlun Dai, Yu Ao, Yumei Li
trans-Caryophyllene (TC) is a major component found in the essential oils of many spices and foods/medicinal plants. It is a natural sesquiterpene and has been the subject of numerous studies. However, the effects of TC on vascular inflammation remain unknown. In this study, we reported that TC treatment in human umbilical vein endothelial cells (HUVECs) prevented attachment of monocytic leukemia cell line THP-1 cells to endothelial cells. In addition, in vivo results indicate that TC inhibited macrophage infiltration to the aortic surface and reduced total serum levels of cholesterol and triglycerides...
June 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28620995/effects-of-tilianin-on-proliferation-migration-and-tgf-%C3%AE-smad-signaling-in-rat-vascular-smooth-muscle-cells-induced-with-angiotensin-ii
#13
Wenjiang Cao, Na Hu, Yong Yuan, Jiang Cheng, Xinhong Guo, Yanfang Wang, Xinchun Wang, Ping Hu
Flavonoid Tilianin was isolated from Dracocephalum moldavica, and its pharmacological mechanism on proliferation, migration and the TGF-β/Smad signaling pathway in rat vascular smooth muscle cells (VSMCs) induced with Angiotensin II (Ang II) was systematically evaluated. Primary rat VSMCs were stimulated with Ang II to induce proliferation. The cells were then treated with Tilianin for 24 or 48 h. MTT assay and Transwell assays were used to evaluate the effects of Tilianin on proliferation and migration. The expression of intracellular proliferating cell nuclear antigen (PCNA), intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) were measured by immunohistochemistry as verification of effects on proliferation and migration...
June 16, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28600848/dj-1-alleviates-angiotensin-ii-induced-endothelial-progenitor-cell-damage-by-activating-the-ppar%C3%AE-ho-1-pathway
#14
Tao Han, Meihan Liu, Songbai Yang
There is evidence that angiotensin II (Ang II) may impair the functions of endothelial progenitor cells (EPCs). It was revealed that DJ-1 could resist oxidative stress. In this study, we investigated whether DJ-1 could protect EPCs against Ang II-induced cell damage. The proliferation and migration of EPCs were strongly reduced in the Ang II group and were increased by overexpression of DJ-1. Western blotting indicated that the increased expression of the senescence marker β-galactosidase and decreased expression of adhesion molecules (ICAM-1, VCAM-1) induced by Ang II were reversed after Ad-DJ-1 transfection...
June 10, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28596825/kv1-3-channel-blocker-imktx88-maintains-blood-brain-barrier-in-experimental-autoimmune-encephalomyelitis
#15
Jie Huang, Song Han, Qi Sun, Yipeng Zhao, Junchen Liu, Xiaolu Yuan, Wenqian Mao, Biwen Peng, Wanhong Liu, Jun Yin, Xiaohua He
BACKGROUND: Disruption of blood-brain barrier (BBB) and subsequent infiltration of auto-reactive T lymphocytes are major characteristics of multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE). Kv1.3 channel blockers are demonstrated potential therapeutic effects on MS patients and EAE models, maybe via reducing activation of T cells. However, it remains to be explored whether Kv1.3 channel blockers maintain integrity of BBB in MS model. RESULTS: In this study, ImKTx88, a highly selective Kv1...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28596375/nlrp3-inflammasome-inhibition-by-mcc950-reduces-atherosclerotic-lesion-development-in-apolipoprotein-e-deficient-mice
#16
Thomas van der Heijden, Eva Kritikou, Wouter Venema, Janine van Duijn, Peter J van Santbrink, Bram Slütter, Amanda C Foks, Ilze Bot, Johan Kuiper
OBJECTIVE: Inflammasomes are multiprotein complexes, and their activation has been associated with cardiovascular disease. Inflammasome activation leads to secretion of caspase-1 by innate immune cells, resulting in the activation of interleukin-1β. Recently, a potent and selective inhibitor of the NLRP3 inflammasome, MCC950, was described. In this study, we investigated the effect of MCC950 on atherosclerotic lesion development in apoE(-/-) mice. APPROACH AND RESULTS: First, we determined the efficacy of MCC950 in vitro...
June 8, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28594820/serum-proteins-mediate-depression-s-association-with-dementia
#17
Donald R Royall, Safa Al-Rubaye, Ram Bishnoi, Raymond F Palmer
The latent variable "δ" (for "dementia") uniquely explains dementia severity. Depressive symptoms are independent predictors of δ. We explored 115 serum proteins as potential causal mediators of the effect of depressive symptoms on δ in a large, ethnically diverse, longitudinal cohort. All models were adjusted for age, apolipoprotein E, education, ethnicity, gender, hemoglobin A1c, and homocysteine, and replicated in randomly selected 50% subsets. Alpha1-antitrypsin (A1AT), FAS, Heparin-binding EGF-like Growth Factor (HB-EGF), Insulin-like Growth Factor-1 (IGF-1), Luteinizing Hormone (LH), Macrophage Inflammatory Protein type 1 alpha (MIP-1α), Resitin, S100b, Tissue Inhibitor of Metalloproteinase type 1 (TIMP-1), and Vascular Cell Adhesion Molecule type 1 (VCAM-1) each were partial mediators of depression's association with δ...
2017: PloS One
https://www.readbyqxmd.com/read/28593025/ziziphus-nummularia-inhibits-inflammation-induced-atherogenic-phenotype-of-human-aortic-smooth-muscle-cells
#18
Manal Fardoun, Tuqa Al-Shehabi, Ahmed El-Yazbi, Khodr Issa, Fouad Zouein, Dina Maaliki, Rabah Iratni, Ali H Eid
Cardiovascular disease (CVD) continues to be the leading cause of death worldwide. Atherosclerosis is a CVD characterized by plaque formation resulting from inflammation-induced insults to endothelial cells, monocytes, and vascular smooth muscle cells (VSMCs). Despite significant advances, current treatments for atherosclerosis remain insufficient, prompting the search for alternative modalities, including herbal medicine. Ziziphus nummularia is an herb commonly used in the amelioration of symptoms associated with many health conditions such as cold, diarrhea, cancer, and diabetes...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28587983/ophiopogonin-d-and-eets-ameliorate-ang-ii-induced-inflammatory-responses-via-activating-ppar%C3%AE-in-huvecs
#19
Xiaoyan Huang, Yuguang Wang, Zhaoyan Zhang, Yuan Wang, Xiangmei Chen, Yi Wang, Yue Gao
CYP2J2 is highly expressed in cardiovascular tissue including the heart and vascular endothelial cells. CYP2J2 and the EETs have been shown owning diverse biological effects. Our previous study found that ophiopogonin D (OP-D) suppressed drug-induced endoplasmic reticulum (ER) stress by upregulating the levels of CYP2J3/EETs in cardiomyocytes. The aim of this research was to investigate whether CYP2J2/EETs-PPARα pathway involved in endothelium protective effects of OP-D in human umbilical vein endothelial cells (HUVECs)...
June 3, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28587659/glutaminyl-cyclase-activity-correlates-with-levels-of-a%C3%AE-peptides-and-mediators-of-angiogenesis-in-cerebrospinal-fluid-of-alzheimer-s-disease-patients
#20
Claire Bridel, Torsten Hoffmann, Antje Meyer, Sisi Durieux, Marleen A Koel-Simmelink, Matthias Orth, Philip Scheltens, Inge Lues, Charlotte E Teunissen
BACKGROUND: Pyroglutamylation of truncated Aβ peptides, which is catalysed by enzyme glutaminyl cyclase (QC), generates pE-Aβ species with enhanced aggregation propensities and resistance to most amino-peptidases and endo-peptidases. pE-Aβ species have been identified as major constituents of Aβ plaques and reduction of pE-Aβ species is associated with improvement of cognitive tasks in animal models of Alzheimer's disease (AD). Pharmacological inhibition of QC has thus emerged as a promising therapeutic approach for AD...
June 6, 2017: Alzheimer's Research & Therapy
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