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aortic dissection plasma

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https://read.qxmd.com/read/30779466/upregulation-of-mir-146a-5p-is-associated-with-increased-proliferation-and-migration-of-vascular-smooth-muscle-cells-in-aortic-dissection
#1
Ling Xue, Songyuan Luo, Huanyu Ding, Yuan Liu, Wenhui Huang, Xiaoping Fan, Min Wu, Xuhua Jian, Cheng Huang, Jianfang Luo, Ruixin Fan
BACKGROUND: This study aimed to investigate whether miR-146a-5p was involved in the pathogenesis of thoracic aortic dissection (AD) via regulating the biological function of vascular smooth muscle cells (VSMCs). METHODS: Circulating miR-146a-5p level was measured by quantitative polymerase chain reaction (qPCR) in AD patients and healthy controls. Human dissected aortic samples were obtained from patients with thoracic AD Stanford type A undergoing surgical repair, and normal control samples were from organ donors who died from nonvascular diseases...
February 19, 2019: Journal of Clinical Laboratory Analysis
https://read.qxmd.com/read/30657332/interleukin-6-receptor-signalling-and-abdominal-aortic-aneurysm-growth-rates
#2
Ellie Paige, Marc Clément, Fabien Lareyre, Michael Sweeting, Juliette Raffort, Céline Grenier, Alison Finigan, James Harrison, James E Peters, Benjamin B Sun, Adam S Butterworth, Seamus C Harrison, Matthew J Bown, Jes S Lindholt, Stephen A Badger, Iftikhar J Kullo, Janet Powell, Paul E Norman, Julian A Scott, Marc A Bailey, Stefan Rose-John, John Danesh, Daniel F Freitag, Dirk S Paul, Ziad Mallat
BACKGROUND: The Asp358Ala variant (rs2228145; A>C) in the interleukin-6 receptor ( IL6R) gene has been implicated in the development of abdominal aortic aneurysms (AAAs), but its effect on AAA growth over time is not known. We aimed to investigate the clinical association between the IL6R-Asp358Ala variant and AAA growth, and to assess the effect of blocking the IL-6 signalling pathway in mouse models of aortic aneurysm rupture or dissection. METHODS: Using data from 2,863 participants with AAA from nine prospective cohorts, age- and sex-adjusted mixed-effects linear regression models were used to estimate the association between the IL6R-Asp358Ala variant and annual change in AAA diameter (mm/year)...
January 18, 2019: Circulation. Genomic and precision medicine
https://read.qxmd.com/read/30617563/a-phase-1-first-in-human-study-of-18-f-gp1-positron-emission-tomography-for-imaging-acute-arterial-thrombosis
#3
Sun Young Chae, Tae-Won Kwon, Soyoung Jin, Sun U Kwon, Changhwan Sung, Seung Jun Oh, Sang Ju Lee, Jungsu S Oh, Youngjin Han, Yong-Pil Cho, Narae Lee, Ji Young Kim, Norman Koglin, Mathias Berndt, Andrew W Stephens, Dae Hyuk Moon
BACKGROUND: 18 F-GP1 is a novel positron emission tomography (PET) tracer that targets glycoprotein IIb/IIIa receptors on activated platelets. The study objective was to explore the feasibility of directly imaging acute arterial thrombosis (AAT) with 18 F-GP1 PET/computed tomography (PET/CT) and to quantitatively assess 18 F-GP1 uptake. Safety, biodistribution, pharmacokinetics and metabolism were also evaluated. METHODS: Adult patients who had signs or symptoms of AAT or had recently undergone arterial intervention or surgery within 14 days prior to 18 F-GP1 PET/CT were eligible for inclusion...
January 7, 2019: EJNMMI Research
https://read.qxmd.com/read/30604664/perioperative-results-and-risk-factors-for-in-hospital-mortality-in-patients-with-stanford-type-a-aortic-dissection-undergoing-sun-s-procedure-a-single-center-study
#4
YuHui Wu, Rui Jiang, Ping Xu, Guanron Wang, Jianhu Wang, Sumi Yang
BACKGROUND: The study was to analyze the therapeutic effect and risk factors of in-hospital mortality in patients with acute Stanford type A aortic dissection operated by Sun's procedure. METHODS: From Jan. 2010 to March 2016, 72 patients whose data was fully accessible underwent Sun's procedure in our hospital due to acute Stanford type A aortic dissection. Patients were divided into the survival group and the death group, and the risk factors for in-hospital mortality were collected and analyzed...
November 6, 2018: Heart Surgery Forum
https://read.qxmd.com/read/30595182/thrombospondin-1-is-increased-in-the-aorta-and-plasma-of-patients-with-acute-aortic-dissection
#5
Tao Zeng, Jun Yuan, Jianting Gan, Yu Liu, Lei Shi, Zhengde Lu, Yan Xue, Rixin Xiong, Min Huang, Zicong Yang, Yingzhong Lin, Ling Liu
BACKGROUND: Previous studies have shown that thrombospondin 1 (TSP-1) is involved in cardiovascular diseases, such as atherosclerosis and abdominal aortic aneurysm. However, TSP-1 expression levels in human aortic dissection (AD) remain unknown. METHODS: TSP-1 levels were detected in aortas collected from control subjects and AD patients. The TSP-1, interleukin (IL) 6, matrix metalloproteinase (MMP) 2, and MMP9 levels in plasma from non-AD patients and AD patients were measured...
January 2019: Canadian Journal of Cardiology
https://read.qxmd.com/read/30594664/sestrin2-increases-in-aortas-and-plasma-from-aortic-dissection-patients-and-alleviates-angiotensin-ii-induced-smooth-muscle-cell-apoptosis-via-the-nrf2-pathway
#6
Ting Xiao, Le Zhang, Ying Huang, Ying Shi, Jing Wang, Qingwei Ji, Jing Ye, Yingzhong Lin, Hongtao Liu
BACKGROUND: Previous studies have demonstrated that oxidative stress is closely related to aortic dissection (AD). Sestrin2 (Sesn2) is an important antioxidant protein, and this study aimed to investigate whether Sesn2 participates in AD and the possible mechanisms. METHODS: Sesn2 expression was detected in aortas collected from AD patients and normal donors. In addition, blood samples were collected from AD patients and non-AD (NAD) patients, and the plasma Sesn2 levels were measured...
December 27, 2018: Life Sciences
https://read.qxmd.com/read/30391968/neovascularization-with-chronic-inflammation-characterizes-ascending-aortic-dissection
#7
Eetu Niinimäk, Ville Pynnönen, Ivana Kholova, Timo Paavonen, Ari Mennander
OBJECTIVE: Neovascularization of the aortic wall may be associated with aortic dissection (AD). Aortic wall endothelial CD31 deposition together with chronic inflammation indicates angiogenesis that may lead to tissue disruption. We studied the presence of neovascularization of the ascending aortic wall by characterizing CD31 positive endothelial cells. METHODS: Aortic wall routine histology and immunohistochemistry for CD31, T- and B-lymphocytes, plasma cells, macrophages, endothelial cells, smooth muscle cells, and cell proliferation were performed on 35 selected patients who underwent surgery for the ascending aorta, and the samples were grouped according to the presence of AD...
November 2018: Anatolian Journal of Cardiology
https://read.qxmd.com/read/30258282/circulating-th1-th2-th9-th17-th22-and-treg-levels-in-aortic-dissection-patients
#8
Jing Ye, Yuan Wang, Zhen Wang, Qingwei Ji, Ying Huang, Tao Zeng, Haiying Hu, Di Ye, Jun Wan, Yingzhong Lin
Background: Previous studies demonstrated that the subsets of CD4+ T helper (Th) cells are closely related to vascular diseases, including atherosclerosis and hypertension. This study is aimed at investigating the circulating Th1, Th2, Th9, Th17, Th22, and Treg levels in aortic dissection (AD) patients. Methods: Blood samples from AD ( n = 56) and non-AD (NAD, n = 24) patients were collected, and the circulating levels of Th1, Th2, Th9, Th17, Th22, and Treg cells and their transcription factors and functional cytokines were measured by flow cytometric analysis, quantitative polymerase chain reaction, and enzyme-linked immunosorbent assays, respectively...
2018: Mediators of Inflammation
https://read.qxmd.com/read/30212440/plasma-resistin-levels-in-patients-with-acute-aortic-dissection-a-propensity-score-matched-observational-case-control-study
#9
Xintian Liu, Xuan Zheng, Xi Su, Wei Tian, Yuanping Hu, Zhiping Zhang
BACKGROUND The aim of this observational case-control study was to compare the levels of plasma resistin between patients with acute aortic dissection and matched controls, and to use propensity score matching (PSM) to reduce case selection bias and clinical confounders. MATERIAL AND METHODS With the use of PSM, this study included 43 pairs of patients with acute aortic dissection (type-A and type-B dissection) and matched controls. Plasma resistin levels and other laboratory parameters were compared between the two groups, including white blood cell (WBC) count, glucose, high sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and D-dimer...
September 13, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://read.qxmd.com/read/30174843/changes-in-coagulation-factor-xii-and-its-function-during-aortic-arch-surgery-for-acute-aortic-dissection-a-prospective-observational-study
#10
Jiachen Li, Xinliang Guan, Ou Liu, Xiaolong Wang, Yuyong Liu, Haiyang Li, Feng Lan, Ming Gong, Hongjia Zhang
Background: Changes in the intrinsic coagulation pathway during aortic arch surgery in patients with acute aortic dissection (AAD) have not yet been reported. The aim of this study is to describe the changes in intrinsic coagulation factor XII, explore its function and find a new target for the treatment of coagulopathy during surgery. Methods: Eighty-eight patients undergoing emergent surgery for AAD were enrolled. Changes in the intrinsic and extrinsic coagulation pathways were evaluated at 5 different timepoints during the perioperative period by measuring intrinsic coagulation factor XII, extrinsic coagulation factor VII and some intrinsic upstream stimulating factors...
July 2018: Journal of Thoracic Disease
https://read.qxmd.com/read/29885944/cold-agglutinin-disease-complicating-management-of-aortic-dissection
#11
James Bras, Kelsey Uminski, Arjuna Ponnampalam
BACKGROUND: Cold agglutinin disease is characterized by acrocyanosis, hemolytic anemia, and occasionally, frank hemoglobinuria. Although cold agglutinins are commonly detected, they are rarely clinically significant due to subphysiologic temperatures at which agglutination occurs. Cardiovascular surgical procedures requiring hypothermia present a unique challenge for these patients, requiring modification of the conduct of cardiopulmonary bypass and cardioplegia. CASE REPORT: Herein we report a case of a patient with a prior history of symptomatic cold agglutinin disease and type A aortic dissection, presenting with dilation of his known diseased ascending aorta, requiring semi-urgent repair...
April 2018: Transfusion and Apheresis Science
https://read.qxmd.com/read/29863610/resuscitation-of-endotheliopathy-and-bleeding-in-thoracic-aortic-dissections-the-viper-octa-randomized-clinical-pilot-trial
#12
Jakob Stensballe, Annette G Ulrich, Jens C Nilsson, Hanne H Henriksen, Peter S Olsen, Sisse R Ostrowski, Pär I Johansson
BACKGROUND: Thoracic aorta dissection is an acute critical condition associated with shock-induced endotheliopathy, coagulopathy, massive bleeding, and significant morbidity and mortality. Our aim was to compare the effect of coagulation support with solvent/detergent-treated pooled plasma (OctaplasLG) versus standard fresh frozen plasma (FFP) on glycocalyx and endothelial injury, bleeding, and transfusion requirements. METHODS: Investigator-initiated, single-center, blinded, randomized clinical pilot trial of adult patients undergoing emergency surgery for thoracic aorta dissection...
October 2018: Anesthesia and Analgesia
https://read.qxmd.com/read/29848500/in-vivo-molecular-characterization-of-abdominal-aortic-aneurysms-using-fibrin-specific-magnetic-resonance-imaging
#13
René M Botnar, Julia Brangsch, Carolin Reimann, Christian H P Janssen, Reza Razavi, Bernd Hamm, Marcus R Makowski
BACKGROUND: The incidence of abdominal aortic aneurysms (AAAs) will significantly increase during the next decade. Novel biomarkers, besides diameter, are needed for a better characterization of aneurysms and the estimation of the risk of rupture. Fibrin is a key protein in the formation of focal hematoma associated with the dissection of the aortic wall and the development of larger thrombi during the progression of AAAs. This study evaluated the potential of a fibrin-specific magnetic resonance (MR) probe for the in vivo characterization of the different stages of AAAs...
May 30, 2018: Journal of the American Heart Association
https://read.qxmd.com/read/29685513/expression-of-platelet-derived-growth-factor-b-is-upregulated-in-patients-with-thoracic-aortic-dissection
#14
Weixin Meng, Shangdian Liu, Dandan Li, Zonghong Liu, Hui Yang, Bo Sun, Hongyu Liu
OBJECTIVE: Thoracic aortic dissection (TAD) is a serious condition requiring urgent treatment to avoid catastrophic consequences. The inflammatory response is involved in the occurrence and development of TAD, possibly potentiated by platelet-derived growth factors (PDGFs). This study aimed to determine whether expression of PDGF-B (a subunit of PDGF-BB) was increased in TAD patients and to explore the factors responsible for its upregulation and subsequent effects on TAD. METHODS: Full-thickness ascending aorta wall specimens from TAD patients (n = 15) and control patients (n = 10) were examined for expression of PDGF-B and its receptor (PDGFRB) and in terms of morphology, inflammation, and fibrosis...
April 20, 2018: Journal of Vascular Surgery
https://read.qxmd.com/read/29555322/increased-interleukin-11-levels-in-thoracic-aorta-and-plasma-from-patients-with-acute-thoracic-aortic-dissection
#15
Yao Xu, Jing Ye, Menglong Wang, Yuan Wang, Qingwei Ji, Ying Huang, Tao Zeng, Zhen Wang, Di Ye, Huimin Jiang, Jianfang Liu, Yingzhong Lin, Jun Wan
BACKGROUND: Interleukin (IL) 11 is closely related to tumor and hematological system diseases. Recent studies have demonstrated that IL-11 also participates in cardiovascular diseases, including ischemia-reperfusion mediated heart injury and acute myocardial infarction. This study aimed to investigate whether IL-11 is involved in acute thoracic aortic dissection (TAD). METHODS: Aortic tissue samples from normal donors and acute TAD patients were collected, and the expression of IL-11 in all aortic tissue was analyzed...
June 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://read.qxmd.com/read/29534905/oxygenation-impairment-after-total-arch-replacement-with-a-stented-elephant-trunk-for-type-a-dissection
#16
Yuwen Shen, Chuanzhen Liu, Changcun Fang, Jie Xi, Shuming Wu, Xinyan Pang, Guangmin Song
OBJECTIVE: To study the risk factors of oxygenation impairment in patients with type-A acute aortic dissection who underwent total arch replacement with a stented elephant trunk. METHODS: In this study, 169 consecutive patients were enrolled who were diagnosed with type-A acute aortic dissection and underwent a total arch replacement procedure at the Qilu Hospital of Shandong University between January 2015 and February 2017. Postoperative oxygenation impairment was defined as arterial oxygen partial pressure/inspired oxygen fraction ≤ 200 with positive end expiratory pressure ≥ 5 cm H2 O that occurred within 72 hours of surgery...
June 2018: Journal of Thoracic and Cardiovascular Surgery
https://read.qxmd.com/read/29392348/determinants-of-increased-aortic-diameters-in-young-normotensive-patients-with-turner-syndrome-without-structural-heart-disease
#17
A Uçar, Melike Tuğrul, Bülent Oğuz Erol, Ensar Yekeler, Banu Aydın, Seher Yıldız, Kemal Nişli, Firdevs Baş, Şükran Poyrazoğlu, Feyza Darendeliler, Nurçin Saka, Aylin Yetim Şahin, Yasin Yılmaz, Rüveyde Bundak
Factors associated with aortic dilation and dissection in patients with Turner syndrome (TS) remain unclear. We assessed magnetic resonance imaging-based aortic diameters at nine predefined anatomic positions and examined associations of increased aortic diameters with B-type natriuretic peptide (BNP), A-type NP (ANP), growth hormone treatment, insulin-like growth factor 1 (IGF1), and estrogen status. Forty-seven patients with TS aged 7.3-21 years and 34 healthy peers were enrolled in this study. Aortic diameters were higher in patients with TS at three positions than in controls (p < 0...
April 2018: Pediatric Cardiology
https://read.qxmd.com/read/29367209/the-complement-c3a-c3ar-axis-promotes-development-of-thoracic-aortic-dissection-via-regulation-of-mmp2-expression
#18
Weihong Ren, Yan Liu, Xuerui Wang, Chunmei Piao, Youcai Ma, Shulan Qiu, Lixin Jia, Boya Chen, Yuan Wang, Wenjian Jiang, Shuai Zheng, Chang Liu, Nan Dai, Feng Lan, Hongjia Zhang, Wen-Chao Song, Jie Du
Thoracic aortic dissection (TAD), once ruptured, is devastating to patients, and no effective pharmaceutical therapy is available. Anaphylatoxins released by complement activation are involved in a variety of diseases. However, the role of the complement system in TAD is unknown. We found that plasma levels of C3a, C4a, and C5a were significantly increased in patients with TAD. Elevated circulating C3a levels were also detected in the developmental process of mouse TAD, which was induced by β-aminopropionitrile monofumarate (BAPN) treatment, with enhanced expression of C1q and properdin in mouse dissected aortas...
March 1, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://read.qxmd.com/read/29360940/from-genetics-to-response-to-injury-vascular-smooth-muscle-cells-in-aneurysms-and-dissections-of-the-ascending-aorta
#19
Jean-Baptiste Michel, Guillaume Jondeau, Dianna M Milewicz
Vascular smooth muscle cells (vSMCs) play a crucial role in both the pathogenesis of Aneurysms and Dissections of the ascending thoracic aorta (TAAD) in humans and in the associated adaptive compensatory responses, since thrombosis and inflammatory processes are absent in the majority of cases. Aneurysms and dissections share numerous characteristics, including aetiologies and histopathological alterations: vSMC disappearance, medial areas of mucoid degeneration, and extracellular matrix (ECM) breakdown. Three aetiologies predominate in TAAD in humans: (i) genetic causes in heritable familial forms, (ii) an association with bicuspid aortic valves, and (iii) a sporadic degenerative form linked to the aortic aging process...
March 15, 2018: Cardiovascular Research
https://read.qxmd.com/read/29279461/immunoglobulin-g-subclass-4-related-lymphoplasmacytic-thoracic-aortitis-in-a-patient-with-acute-type-a-aortic-dissection
#20
Tetsuro Uchida, Azumi Hamasaki, Yoshinori Kuroda, Mitsuaki Sadahiro, Nobuyuki Tamazawa, Rintaro Ohe, Mitsunori Yamakawa
Immunoglobulin G subclass 4-related disease (IgG4-RD) is a recently recognized systemic inflammatory disease characterized by an elevated serum IgG4 level and an IgG4-positive lymphocyte infiltrate mainly in exocrine tissues. Previous reports documented IgG4-RD in several cardiovascular disorders. We present a case of type A aortic dissection associated with IgG4-RD. A 52-year-old man diagnosed with a type A aortic dissection was referred for surgical treatment. He underwent emergency hemiarch reconstruction with a prosthetic graft...
August 20, 2018: Annals of Thoracic and Cardiovascular Surgery
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