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https://www.readbyqxmd.com/read/29683452/laminar-flow-based-assays-to-investigate-leukocyte-recruitment-on-cultured-vascular-cells-and-adherent-platelets
#1
Tanja Vajen, Alexandra C A Heinzmann, Annemiek Dickhout, Zhen Zhao, Magdolna Nagy, Johan W M Heemskerk, Rory R Koenen
The recruitment of leukocytes upon injury or inflammation to sites of injury or tissue damage has been investigated during recent decades and has resulted in the concept of the leukocyte adhesion cascade. However, the exact molecular mechanisms involved in leukocyte recruitment have not yet been fully identified. Since leukocyte recruitment remains an important subject in the field of infection, inflammation, and (auto-) immune research, we present a straightforward laminar flow-based assay to study underlying mechanisms of the adhesion, de-adhesion, and transmigration of leukocytes under venous and arterial flow regimes...
April 9, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29682160/transplantation-of-bone-marrow-mesenchymal-stem-cells-prevents-radiation-induced-artery-injury-by-suppressing-oxidative-stress-and-inflammation
#2
Yanjun Shen, Xin Jiang, Lingbin Meng, Chengcheng Xia, Lihong Zhang, Ying Xin
The present study aims to explore the protective effect of human bone marrow mesenchymal stem cells (hBMSCs) on radiation-induced aortic injury (RIAI). hBMSCs were isolated and cultured from human bone marrow. Male C57/BL mice were irradiated with a dose of 18-Gy 6MV X-ray and randomly treated with either vehicle or hBMSCs through tail vein injection with a dose of 103 or 104 cells/g of body weight (low or high dose of hBMSCs) within 24 h. Aortic inflammation, oxidative stress, and vascular remodeling were assessed by immunohistochemical staining at 3, 7, 14, 28, and 84 days after irradiation...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29682110/igg4-related-arterial-disease
#3
REVIEW
Fuminori Kasashima, Kengo Kawakami, Yasushi Matsumoto, Masamitsu Endo, Satomi Kasashima, Atsuhiro Kawashima
Immunoglobulin G4-related diseases (IgG4-RD) are systemic inflammatory conditions, characterized by high serum IgG4 concentrations, and pathologically IgG4-positive plasmacytes infiltrations and storiform fibrosis. We described IgG4-related inflammatory abdominal aortic aneurysm in 2008, and revealed the existence of vascular lesions. IgG4-related vascular lesions frequently occur in the aorta and branching medium-sized arteries with or without aneurysmal change. The inflammatory lesion mainly involves in the adventitia, indicating remarkable adventitial fibrous thickening with infiltration of inflammatory cells...
March 25, 2018: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29681595/remission-of-palmoplantar-pustulosis-after-on-pump-coronary-artery-bypass-grafting-in-a-patient-with-titanium-allergy
#4
Takanori Kono, Takeshi Oda, Keiichi Akaiwa, Katsuhiko Nakamura, Kenya Sasaoka, Hiroyuki Tanaka
Metal allergy is an uncommon problem during surgery. Among them, titanium allergy is said to be rare, but can lead to serious complications, such as palmoplantar pustulosis (PPP). A 69-year-old woman was admitted to our hospital with a chief complaint of chest pain. Coronary angiography showed severe coronary artery disease that required coronary artery bypass grafting (CABG). The patient had a history of orthopedic surgery for left distal radius fracture 2 years previously, which resulted in inflammation on the left arm and PPP...
April 20, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29680826/inflammation-autophagy-and-apoptosis-after-myocardial-infarction
#5
Xianwei Wang, Zhikun Guo, Zufeng Ding, Jawahar L Mehta
BACKGROUND: There is evidence for inflammation, autophagy, and apoptosis in the ischemic heart. Autophagy is a physiologic process for tissue survival. Apoptosis, on the other hand, is a mechanism that serves to clear the debris in the setting of tissue injury. The balance between autophagy and apoptosis may be important in cell survival and cardiac function. METHODS AND RESULTS: We examined the interplay of inflammation and myocyte autophagy and apoptosis during the ischemic process...
April 21, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29680174/human-serum-albumin-in-cardiovascular-diseases
#6
REVIEW
Stephane Arques
Cardiovascular diseases are the leading cause of death worldwide. Endothelial dysfunction, inflammation and oxidative stress are at the forefront in the onset and development of atherosclerosis and many cardiovascular diseases. Epidemiological evidence is that low serum albumin levels are linked to incident ischemic heart disease, heart failure, atrial fibrillation, stroke and venous thromboembolism, independent of risk factors, body mass index and inflammation. Hypoalbuminemia has also emerged as an independent prognosticator in many cardiovascular diseases, such as coronary artery disease, heart failure, congenital heart disease, infective endocarditis and stroke, even after adjusting for usual causal factors and prognostic markers...
April 18, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29679171/pedicled-gastric-seromuscular-patch-for-one-stage-closure-of-a-bronchopleural-fistula-a-case-report
#7
Jun Suzuki, Hiroyuki Oizumi, Hirohisa Kato, Akira Hamada, Hikaru Watarai, Kenta Nakahashi, Takayuki Sasage, Mitsuaki Sadahiro
BACKGROUND: One-stage closure and fenestration are the available surgical options for bronchopleural fistula (BPF). One-stage closure may be applicable in cases with favorable infection control. Closing the bronchopleural stump is difficult due to thick adhesion caused by inflammation and a high risk of pulmonary artery injury. We report the successful closure of a BPF using a gastric seromuscular patch with an omental pedicle flap. CASE PRESENTATION: A 73-year-old man underwent right lower lobectomy with ND2a-2 lymph node dissection for lung adenocarcinoma...
April 20, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29676814/potential-of-carnosine-a-histamine-precursor-in-rat-model-of-bilateral-common-carotid-artery-occlusion-induced-vascular-dementia
#8
Nidhi Tiwari, Pankaj Bhatia, Amit Kumar, Amteshwar S Jaggi, Nirmal Singh
The present study investigates the potential of Carnosine a histamine precursor, in rat model of bilateral common carotid artery occlusion (BCCAo) induced vascular dementia (VaD). Wistar rats were subjected to BCCAo procedure under anesthesia to induce VaD. The rats were subjected to Morris water-maze (MWM) test (6th day onwards post-surgery). MWM test was employed to assess learning and memory of the animals whereby ELT (escape latency time), TSTQ (time spent in target quadrant) and Path length (distance travelled) taken as important parameters...
April 20, 2018: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29676644/air-pollution-exposure-with-fine-dust-responses-in-the-pulmonary-vasculature-and-the-right-heart
#9
Nedim Durmus, Gabriele Grunig
Detrimental effects of air pollution with fine dust (particulate matter ≤2.5 μm in aerodynamic diameter, or PM2.5 ) on the systemic circulation and the left heart have been studied intensely during the past decade. In comparison, knowledge regarding the effects of exposure to air pollution with PM2.5 on the pulmonary vasculature and the right heart lags far behind. A report on severe lung disease and right heart failure in coal miners was published nearly 170 years ago. However, today, we still do not have a clear picture of how the effect of air pollution on the pulmonary circulation or the right heart should be viewed from a clinical, mechanistic biological, therapeutic, or economic angle...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676623/nicotine-downregulates-the-compensatory-angiotensin-converting-enzyme-2-angiotensin-type-2-receptor-of-the-renin-angiotensin-system
#10
Xinping Yue, Tyler M Basting, Thomas W Flanagan, Jiaxi Xu, Thomas D Lobell, Nicholas W Gilpin, Jason D Gardner, Eric Lazartigues
RATIONALE: Smoking is a major risk factor for the development of cardiovascular and pulmonary diseases. The importance of the renin-angiotensin system in the development of cardiovascular and pulmonary disease is well established. Angiotensin-II, by means of its type 1 receptor (angiotensin type 1 receptor, AT1 R), promotes increased sympathetic activity, salt and water reabsorption, vasoconstriction, inflammation, and aldosterone and vasopressin release, contributing to tissue fibrosis, endothelium dysfunction, and hypertension...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29674495/platelet-munc13-4-regulates-hemostasis-thrombosis-and-airway-inflammation
#11
Eduardo I Cardenas, Keegan Breaux, Qi Da, Jose R Flores, Marco A Ramos, Michael J Tuvim, Alan R Burns, Rolando E Rumbaut, Roberto Adachi
Platelet degranulation is crucial for hemostasis and may participate in inflammation. Exocytosis in platelets is mediated by SNARE proteins and should be controlled by Munc13 proteins. We found that platelets express Munc13-2 and -4. We assessed platelet granule exocytosis in Munc13-2 and -4 global and conditional KO mice, and observed that deletion of Munc13-4 ablates dense granule release and indirectly impairs alpha granule exocytosis. We found no exocytic role for Munc13-2 in platelets, not even in the absence of Munc13-4...
April 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29673854/silencing-of-non-pou-domain-containing-octamer-binding-protein-stabilizes-atherosclerotic-plaque-in-apolipoprotein-e-knockout-mice-via-nf-%C3%AE%C2%BAb-signaling-pathway
#12
Kai Zhang, Fang Zhang, Jian-Min Yang, Jing Kong, Xiao Meng, Meng Zhang, Cheng Zhang, Yun Zhang
BACKGROUND: It remains unknown whether Non-POU-domain-containing octamer-binding protein (NonO) plays a causative role in plaque destabilization. We hypothesized that NonO gene silencing may stabilize atherosclerotic plaque by increasing P4Hα1 expression and inhibiting the inflammation. METHODS AND RESULTS: Vulnerable atherosclerotic plaques were induced in ApoE-/- mice by high fat diet, perivascular collar placement and mental stress. Compared with normal carotid arteries, those contained vulnerable plaques had high NonO expression...
April 7, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29673574/carotid-contrast-enhanced-ultrasonography-and-multimodal-imaging-in-a-case-of-tipic-syndrome
#13
REVIEW
R El Nawar, N Villain, J-M Baud, M De Malherbe, F Pico
Transient perivascular inflammation of the carotid artery (TIPIC) syndrome, previously referred to as 'carotidynia', is an unclassified clinicoradiological entity associating atypical acute neck pain, eccentric perivascular infiltration on imaging and improvement of symptoms either spontaneously or with anti-inflammatory treatment. This case report presents a patient with TIPIC syndrome who underwent five different types of imaging modality, including contrast-enhanced ultrasonography (CEUS) of the carotids, and describes the CEUS appearances of TIPIC syndrome...
April 16, 2018: Revue Neurologique
https://www.readbyqxmd.com/read/29673292/relationship-between-inflammation-and-progression-of-an-abdominal-aortic-aneurysm-in-a-rabbit-model-based-on-18f-fdg-pet-ct-imaging
#14
Mao-Xiao Nie, Xue-Hui Zhang, Yun-Feng Yan, Quan-Ming Zhao
Objective To explore the relationship between abdominal aortic aneurysm development and inflammation in the rabbit through the establishment of a rabbit infrarenal abdominal aortic aneurysm model and the use of 18F-FDG PET/CT imaging. Methods Twenty male New Zealand rabbits were administered an elastase intracavity perfusion to induce an infrarenal abdominal aortic aneurysm model. Prior to surgery, the rabbits underwent abdominal aorta ultrasonic testing and blood collection from the ear veins. Of the original 20 rabbits, 10 rabbits were euthanized two weeks after the operation following ultrasonic testing, PET/CT scanning and blood collection, and their arterial tissue samples were prepared for pathological and immunohistochemical staining...
January 1, 2018: Vascular
https://www.readbyqxmd.com/read/29672222/macrophage-derived-extracellular-vesicles-mediates-smooth-muscle-hyperplasia-role-of-altered-mirna-cargo-in-response-to-hiv-infection-and-substance-abuse
#15
Himanshu Sharma, Mahendran Chinnappan, Stuti Agarwal, Pranjali Dalvi, Sumedha Gunewardena, Amy O'Brien-Ladner, Navneet K Dhillon
Our previous studies consistently demonstrate enhanced pulmonary vascular remodeling in HIV-infected intravenous drug users, and in simian immunodeficiency virus-infected macaques or HIV-transgenic rats exposed to opioids or cocaine. Although we reported an associated increase in perivascular inflammation, the exact role of inflammatory cells in the development of pulmonary vascular remodeling remains unknown. In this study, HIV-infected and cocaine (H+C)-treated human monocyte derived macrophages released a higher number of extracellular vesicles (EVs), compared to HIV-infected or uninfected cocaine-treated macrophages, with a significant increase in the particle size range to 100-150 nm...
April 19, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29671019/lixisenatide-a-novel-glp-1-analog-protects-against-cerebral-ischemia-reperfusion-injury-in-diabetic-rats
#16
Rania G Abdel-Latif, Gehan H Heeba, Ashraf Taye, Mohamed M A Khalifa
Type 2 diabetes mellitus (T2DM) is a major risk factor for ischemic stroke accompanied by vascular dysfunction and poor cerebrovascular outcome. Lixisenatide is a glucagon like peptide-1 (GLP-1) analog that is recently used for T2DM treatment with established neuroprotective properties. This study investigated and compared the neuroprotective effect of lixisenatide against glimepiride on diabetic rats subjected to global cerebral ischemia/reperfusion (I/R) injury. T2DM-induced adult male Wistar rats were administered lixisenatide or glimepiride prior to induction of global cerebral I/R-induced injury...
April 18, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29670076/cathelicidins-prime-platelets-to-mediate-arterial-thrombosis-and-tissue-inflammation
#17
Joachim Pircher, Thomas Czermak, Andreas Ehrlich, Clemens Eberle, Erik Gaitzsch, Andreas Margraf, Jochen Grommes, Prakash Saha, Anna Titova, Hellen Ishikawa-Ankerhold, Konstantin Stark, Tobias Petzold, Thomas Stocker, Ludwig T Weckbach, Julia Novotny, Markus Sperandio, Bernhard Nieswandt, Alberto Smith, Hanna Mannell, Barbara Walzog, David Horst, Oliver Soehnlein, Steffen Massberg, Christian Schulz
Leukocyte-released antimicrobial peptides contribute to pathogen elimination and activation of the immune system. Their role in thrombosis is incompletely understood. Here we show that the cathelicidin LL-37 is abundant in thrombi from patients with acute myocardial infarction. Its mouse homologue, CRAMP, is present in mouse arterial thrombi following vascular injury, and derives mainly from circulating neutrophils. Absence of hematopoietic CRAMP in bone marrow chimeric mice reduces platelet recruitment and thrombus formation...
April 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29669944/neutrophil-subsets-and-their-gene-signature-associate-with-vascular-inflammation-and-coronary-atherosclerosis-in-lupus
#18
Philip M Carlucci, Monica M Purmalek, Amit K Dey, Yenealem Temesgen-Oyelakin, Simantini Sakhardande, Aditya A Joshi, Joseph B Lerman, Alice Fike, Michael Davis, Jonathan H Chung, Martin P Playford, Mohammad Naqi, Pragnesh Mistry, Gustavo Gutierrez-Cruz, Stefania Dell'Orso, Faiza Naz, Taufiq Salahuddin, Balaji Natarajan, Zerai Manna, Wanxia L Tsai, Sarthak Gupta, Peter Grayson, Heather Teague, Marcus Y Chen, Hong-Wei Sun, Sarfaraz Hasni, Nehal N Mehta, Mariana J Kaplan
BACKGROUND: Systemic lupus erythematosus (SLE) is associated with enhanced risk of atherosclerotic cardiovascular disease not explained by Framingham risk score (FRS). Immune dysregulation associated to a distinct subset of lupus proinflammatory neutrophils (low density granulocytes; LDGs) may play key roles in conferring enhanced CV risk. This study assessed if lupus LDGs are associated with in vivo vascular dysfunction and inflammation and coronary plaque. METHODS: SLE subjects and healthy controls underwent multimodal phenotyping of vascular disease by quantifying vascular inflammation (18F-fluorodeoxyglucose-PET/CT [18F-FDG-PET/CT]), arterial dysfunction (EndoPAT and cardio-ankle vascular index), and coronary plaque burden (coronary CT angiography)...
April 19, 2018: JCI Insight
https://www.readbyqxmd.com/read/29669783/vasoactive-intestinal-peptide-ameliorates-acute-myocarditis-and-atherosclerosis-by-regulating-inflammatory-and-autoimmune-responses
#19
Raquel Benitez, Virginia Delgado-Maroto, Marta Caro, Irene Forte-Lago, Mario Duran-Prado, Francisco O'Valle, Andrew H Lichtman, Elena Gonzalez-Rey, Mario Delgado
Vasoactive intestinal peptide (VIP) is a neuropeptide that exerts various vascular and cardioprotective functions and regulates immune function and inflammatory response at multiple levels. However, its role in inflammatory cardiovascular disorders is largely unknown. Myocarditis and atherosclerosis are two inflammatory and autoimmune cardiovascular diseases that cause important adverse circulatory events. In this study, we investigate the therapeutic effects of VIP in various well-established preclinical models of experimental autoimmune myocarditis and atherosclerosis...
April 18, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29669571/sex-differences-in-pulmonary-arterial-hypertension-role-of-infection-and-autoimmunity-in-the-pathogenesis-of-disease
#20
REVIEW
Kyle A Batton, Christopher O Austin, Katelyn A Bruno, Charles D Burger, Brian P Shapiro, DeLisa Fairweather
Registry data worldwide indicate an overall female predominance for pulmonary arterial hypertension (PAH) of 2-4 over men. Genetic predisposition accounts for only 1-5% of PAH cases, while autoimmune diseases and infections are closely linked to PAH. Idiopathic PAH may include patients with undiagnosed autoimmune diseases based on the relatively high presence of autoantibodies in this group. The two largest PAH registries to date report a sex ratio for autoimmune connective tissue disease-associated PAH of 9:1 female to male, highlighting the need for future studies to analyze subgroup data according to sex...
April 18, 2018: Biology of Sex Differences
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