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aortic dissection marker

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https://www.readbyqxmd.com/read/29777298/aortic-elasticity-deterioration-proves-intrinsic-abnormality-of-the-ascending-aorta-in-pediatric-turner-syndrome-unrelated-to-the-aortic-valve-morphology
#1
Christiane Pees, Julian A Heno, Gabriele Häusler, Diana-Alexandra Ertl, Talin Gulesserian, Ina Michel-Behnke
Turner syndrome (TS) is a common genetic disorder in females with high incidence of ascending aortic dilatation and even dissection occurring as early as in the second decade. Known risk factors (RF) are bicuspid aortic valves (BAV), coarctation of the aorta (CoA), and arterial hypertension. Since 10% of dissections occur in patients without RF, an intrinsic aortic wall abnormality has been postulated. This study aimed to investigate the elasticity of the ascending aorta as a surrogate marker of aortic wall texture...
May 18, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29680298/experimental-evaluation-of-homemade-distal-stent-graft-fenestration-for-thoracic-endovascular-aortic-repair-of-type-a-dissection-by-a-transapical-approach
#2
Thomas Gandet, Anis Seghrouchni, Baris Ata Ozdemir, Guillaume Captier, Roland Demaria, Pierre Alric, Bernard Albat, Ludovic Canaud
OBJECTIVE: The use of off-the-shelf stent grafts for thoracic endovascular aortic repair of type A dissections is limited by variability in both the length of the ascending aorta and the location of the proximal intimal tear. This experimental study aimed to assess the feasibility of using a physician-modified thoracic aortic stent graft to treat acute type A dissection by a transapical cardiac approach. METHODS: The experiments were performed on six cadaveric human heart, ascending aorta, aortic arch, and descending aorta specimens...
April 18, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29642385/micrornas-as-potential-mediators-for-cigarette-smoking-induced-atherosclerosis
#3
Yuka Yokoyama, Nathan Mise, Yuka Suzuki, Saeko Tada-Oikawa, Kiyora Izuoka, Lingyi Zhang, Cai Zong, Akira Takai, Yoshiji Yamada, Sahoko Ichihara
Smoking increases the risk of atherosclerosis-related events, such as myocardial infarction and ischemic stroke. Recent studies have examined the expression levels of altered microRNAs (miRNAs) in various diseases. The profiles of tissue miRNAs can be potentially used in diagnosis or prognosis. However, there are limited studies on miRNAs following exposure to cigarette smoke (CS). The present study was designed to dissect the effects and cellular/molecular mechanisms of CS-induced atherosclerogenesis. Apolipoprotein E knockout (ApoE KO) mice were exposed to CS for five days a week for two months at low (two puffs/min for 40 min/day) or high dose (two puffs/min for 120 min/day)...
April 6, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29627025/cerebrovascular-imaging-of-cerebral-ischemia-in-acute-type-a-aortic-dissection
#4
Soichiro Matsubara, Masatoshi Koga, Tomoyuki Ohara, Yasuyuki Iguchi, Kenji Minatoya, Yoshio Tahara, Tetsuya Fukuda, Yuichi Miyazaki, Katsufumi Kajimoto, Yuki Sakamoto, Naoki Makita, Naoki Tokuda, Kazuyuki Nagatsuka, Yukio Ando, Kazunori Toyoda
BACKGROUND AND PURPOSE: Stanford type A aortic dissection (AAD) sometimes causes acute ischemic stroke (AIS) or transient ischemic attack (TIA). There is little understanding of cerebrovascular imaging of AIS or TIA in patients with AAD. METHODS: Consecutive AIS/TIA patients with AAD who were admitted within 4.5 h of onset were reviewed. We compared findings of MRI/MRA between these and consecutive AIS/TIA patients without AAD within 4.5 h of onset. RESULTS: Seventeen AAD and 249 non-AAD patients were identified...
May 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29525729/immunophenotypic-analysis-of-the-chronological-events-of-tissue-repair-in-aortic-medial-dissections
#5
Silvia D Visonà, Onno J de Boer, Claire Mackaaij, Hans H de Boer, Kartika R Pertiwi, Ruben W de Winter, Antonio Osculati, Allard C van der Wal
Acute medial dissection of aorta can occur in the context of a sudden and unexpected death. For medico-legal reasons it is important to estimate as accurately the histological age of dissections. We evaluated the additional value of a systematic application of immunohistochemistry, compared with conventional histology only, in determining chronological steps of injury and repair. Thirty two paraffin embedded specimens of aortic dissection were retrospectively allocated to one of four defined stages: acute (I), subacute (II), early organizing (III) and scarring (IV) using Hematoxylin and Eosin and Elastica van Gieson stained sections...
May 2018: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/29471108/redox-stress-in-marfan-syndrome-dissecting-the-role-of-the-nadph-oxidase-nox4-in-aortic-aneurysm
#6
Francesc Jiménez-Altayó, Thayna Meirelles, Eva Crosas-Molist, M Alba Sorolla, Darya Gorbenko Del Blanco, Judit López-Luque, Aleksandra Mas-Stachurska, Ana-Maria Siegert, Fabio Bonorino, Laura Barberà, Carolina García, Enric Condom, Marta Sitges, Fernando Rodríguez-Pascual, Francisco Laurindo, Katrin Schröder, Joaquim Ros, Isabel Fabregat, Gustavo Egea
Marfan syndrome (MFS) is characterized by the formation of ascending aortic aneurysms resulting from altered assembly of extracellular matrix fibrillin-containing microfibrils and dysfunction of TGF-β signaling. Here we identify the molecular targets of redox stress in aortic aneurysms from MFS patients, and investigate the role of NOX4, whose expression is strongly induced by TGF-β, in aneurysm formation and progression in a murine model of MFS. Working models included aortae and cultured vascular smooth muscle cells (VSMC) from MFS patients, and a NOX4-deficient Marfan mouse model (Fbn1C1039G/+ -Nox4-/- )...
April 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29433109/pathogenesis-of-aortic-wall-complications-in-marfan-syndrome
#7
Nimrat Grewal, Adriana C Gittenberger-de Groot
BACKGROUND: Patients with Marfan (MFS) syndrome and patients with a bicuspid aortic valve (BAV) are more prone to develop aortic dilation and dissection compared to persons with a tricuspid aortic valve (TAV). To elucidate potential common as well as distinct pathways of clinical relevance, we compared the histopathological substrates of aortic pathology. PATIENT AND METHODS: Ascending aortic wall specimen were divided in five groups: BAV (n=36) and TAV (n=23) without and with dilation and non-dilated MFS (n=8)...
March 2018: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/29203969/cardiovascular-disease-in-ageing-an-overview-on-thoracic-aortic-aneurysm-as-an-emerging-inflammatory-disease
#8
REVIEW
Calogera Pisano, Carmela Rita Balistreri, Alessandro Ricasoli, Giovanni Ruvolo
Medial degeneration associated with thoracic aortic aneurysm and acute aortic dissection was originally described by Erdheim as a noninflammatory lesion related to the loss of smooth muscle cells and elastic fibre fragmentation in the media. Recent evidences propose the strong role of a chronic immune/inflammatory process in aneurysm evocation and progression. The coexistence of inflammatory cells with markers of apoptotic vascular cell death in the media of ascending aorta with aneurysms and type A dissections raises the possibility that activated T cells and macrophages may contribute to the elimination of smooth muscle cells and degradation of the matrix...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29146682/magnitude-of-soluble-st2-as-a-novel-biomarker-for-acute-aortic-dissection
#9
Yuan Wang, Xin Tan, Hai Gao, Hui Yuan, Rong Hu, Lixin Jia, Junming Zhu, Lizhong Sun, Hongjia Zhang, Lianjun Huang, Dong Zhao, Pei Gao, Jie Du
BACKGROUND: Misdiagnosis of acute aortic dissection (AAD) can lead to significant morbidity and death. Soluble ST2 (sST2) is a cardiovascular injury-related biomarker. The extent to which sST2 is elevated in AAD and whether sST2 can discriminate AAD from other causes of sudden-onset severe chest pain are unknown. METHODS: We measured plasma concentrations of sST2 (R&D Systems assay) in 1360 patients, including 1027 participants in the retrospective discovery set and 333 patients with initial suspicion of AAD enrolled in the prospective validation cohort...
January 16, 2018: Circulation
https://www.readbyqxmd.com/read/29108310/significance-of-the-thrombo-inflammatory-status-based-novel-prognostic-score-as-a-useful-predictor-for-in-hospital-mortality-of-patients-with-type-b-acute-aortic-dissection
#10
Dongze Li, Lei Ye, Jing Yu, Lixia Deng, Lianjing Liang, Yan Ma, Lei Yi, Zhi Zeng, Yu Cao, Zhi Wan
Background: Inflammation and thrombosis are associated with development and progression of acute aortic dissection (AAD). The aim of this study was to assess the prognostic significance of Simplified Thrombo-Inflammatory Prognostic Score (sTIPS), in patients with early phase type B AAD. Methods: We retrospectively reviewed 491 patients with type B AAD between November 2012 and September 2015. sTIPS was calculated from the white blood cell count (WBC) and mean platelet volume to platelet count (MPV/PC) ratio, at the time of admission...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29104039/increased-levels-of-interleukin-22-in-thoracic-aorta-and-plasma-from-patients-with-acute-thoracic-aortic-dissection
#11
Jing Ye, Menglong Wang, Huimin Jiang, Qingwei Ji, Ying Huang, Jianfang Liu, Tao Zeng, Yao Xu, Zhen Wang, Yingzhong Lin, Jun Wan
BACKGROUND: Interleukin (IL)-22 plays important roles in the development of arterial disease, including atherosclerosis and hypertension. However, the relationship between IL-22 and acute thoracic aortic dissection (TAD) remains unknown. METHODS: Blood samples were collected from patients with chest pain who underwent computed tomography angiography of the thoracic aorta but had no known preoperative diagnosis of coronary artery disease, peripheral artery disease, arthritis, and/or membranous nephropathy...
November 3, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29080094/is-there-a-role-for-biomarkers-in-thoracic-aortic-aneurysm-disease
#12
Damian Balmforth, Amer Harky, Benjamin Adams, John Yap, Alex Shipolini, Neil Roberts, Rakesh Uppal, Mohamad Bashir
Thoracic aortic aneurysm (TAA) represents a major cause of mortality and morbidity in Western countries. The natural history of TAA is indolent, with patients usually being asymptomatic until a catastrophic event such as rupture or dissection ensues. As such, early diagnosis is crucial and the search is ongoing for a biomarker that can indicate the presence of TAA with sufficient accuracy to act as a screening tool. To date, no such marker has been developed for the diagnosis of non-familial or 'sporadic' TAA...
October 28, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28987425/thoracic-aortic-syndromes
#13
REVIEW
Reuben J Strayer
Aortic dissection (AD) is a lethal, treatable disruption of the aortic vessel wall. It often presents without classic features, mimicking symptoms of other conditions, and diagnosis is often delayed. Established high-risk markers of AD should be sought and indicate advanced aortic imaging with CT, MRI, or TEE. Treatment is immediate surgical evaluation, aggressive symptom relief, and reduction of the force of blood against the aortic wall by control of heart rate, followed by blood pressure.
November 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/28883797/genetic-bases-of-bicuspid-aortic-valve-the-contribution-of-traditional-and-high-throughput-sequencing-approaches-on-research-and-diagnosis
#14
REVIEW
Betti Giusti, Elena Sticchi, Rosina De Cario, Alberto Magi, Stefano Nistri, Guglielmina Pepe
Bicuspid aortic valve (BAV) is a common (0.5-2.0% of general population) congenital heart defect with increased prevalence of aortic dilatation and dissection. BAV has an autosomal dominant inheritance with reduced penetrance and variable expressivity. BAV has been described as an isolated trait or associated with syndromic conditions [e.g., Marfan Marfan syndrome or Loeys-Dietz syndrome (MFS, LDS)]. Identification of a syndromic condition in a BAV patient is clinically relevant to personalize aortic surgery indication...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28727149/aortic-microcalcification-is-associated-with-elastin-fragmentation-in-marfan-syndrome
#15
Shaynah Wanga, Stijntje Hibender, Yanto Ridwan, Cindy van Roomen, Mariska Vos, Ingeborg van der Made, Nicole van Vliet, Romy Franken, Luigi Amjg van Riel, Maarten Groenink, Aeilko H Zwinderman, Barbara Jm Mulder, Carlie Jm de Vries, Jeroen Essers, Vivian de Waard
Marfan syndrome (MFS) is a connective tissue disorder in which aortic rupture is the major cause of death. MFS patients with an aortic diameter below the advised limit for prophylactic surgery (<5 cm) may unexpectedly experience an aortic dissection or rupture, despite yearly monitoring. Hence, there is a clear need for improved prognostic markers to predict such aortic events. We hypothesize that elastin fragments play a causal role in aortic calcification in MFS, and that microcalcification serves as a marker for aortic disease severity...
November 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28725213/can-brain-natriuretic-peptides-and-osteoprotegerin-serve-as-biochemical-markers-for-the-detection-of-aortic-pathology-in-children-and-adolescents-with-turner-syndrome
#16
REVIEW
Meenal Mavinkurve, Clodagh S O'Gorman
Turner syndrome (TS) is a chromosomal disorder that affects 1:2,000 females. It results from either the complete or partial loss of the X chromosome as well as other aberrations. Clinical features of TS include short stature, delayed puberty, and congenital cardiac malformations. TS children also have an increased prevalence of cardiometabolic risk factors, which predisposes them to complications like coronary artery disease, cerebrovascular-related deaths, and aortic dissection. Early cardiac imaging, such as echocardiography and cardiac magnetic resonance imaging, are recommended to detect underlying aortic pathology...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28671869/prognostic-value-of-neutrophil-to-lymphocyte-ratio-and-risk-factors-for-mortality-in-patients-with-stanford-type-a-aortic-dissection
#17
Kursad Oz, Taner Iyigun, Zeynep Karaman, Ömer Çelik, Ertan Akbay, Okan Akınc, Okan Akınc, Korhan Erkanli
BACKGROUND: Neutrophil to lymphocyte ratio (NLR) is a prognostic predictor in a wide range of cardiovascular disease. Acute aortic dissection (AD) is an uncommon but fatal cardiovascular disease. In this study, we investigated both prognostic factors in patients with AD and whether NLR can be a predictor for mortality. Methods: We analyzed retrospectively the data of 57 patients with AD who had undergone emergent surgery in our hospital and included 128 consecutive patients with chest pain admitted to the emergency room as a control group...
June 30, 2017: Heart Surgery Forum
https://www.readbyqxmd.com/read/28667053/microrna-124-controls-human-vascular-smooth-muscle-cell-phenotypic-switch-via-sp1
#18
Yangfeng Tang, Shangyi Yu, Yang Liu, Jiajun Zhang, Lin Han, Zhiyun Xu
Phenotypic switch of vascular smooth muscle cells (VSMCs) plays an important role in the pathogenesis of atherosclerosis and aortic dissection. However, the mechanisms of phenotypic modulation are still unclear. MicroRNAs have emerged as important regulators of VSMC function. We recently found that microRNA-124 (miR-124) was downregulated in proliferative vascular diseases that were characterized by a VSMC phenotypic switch. Therefore, we speculated that the aberrant expression of miR-124 might play a critical role in human aortic VSMC phenotypic switch...
September 1, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28625769/mechanisms-of-aortic-dissection-smooth-muscle-cell-phenotype-switch
#19
Zhao An, Yang Liu, Zhi-Gang Song, Hao Tang, Yang Yuan, Zhi-Yun Xu
OBJECTIVE: To investigate the expression of Nanog homeobox (NANOG) in thoracic aortic dissection (TAD) and the role of NANOG in regulating human aortic vascular smooth muscle cells (VSMCs) phenotype switch. METHODS: Aortic specimens were collected from 20 patients undergoing TAD and 10 controls. VSMCs were isolated by adherent cultivation approach. The expression of NANOG, osteopontin (OPN), and VSMCs phenotype markers were determined by quantitative real-time polymerase chain reaction, Western blot, immunohistochemistry, and immunofluorescence...
May 25, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28619541/can-renal-resistive-index-predict-acute-kidney-injury-after-acute-type-a-aortic-dissection-repair
#20
Hai-Bo Wu, Huai Qin, Wei-Guo Ma, Hong-Lei Zhao, Jun Zheng, Jian-Rong Li, Li-Zhong Sun
BACKGROUND: This study sought to determine whether assessment of the renal resistive index (RRI) can predict the short-term reversibility of acute kidney injury (AKI) after repair of acute type A aortic dissection (TAAD). METHODS: This prospective study included 62 patients undergoing repair of acute TAAD. Doppler-based RRIs were obtained preoperatively, immediately after the surgical procedure, and 6, 24, and 48 hours postoperatively. The occurrence of AKI was evaluated daily according to Acute Kidney Injury Network criteria...
November 2017: Annals of Thoracic Surgery
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