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https://www.readbyqxmd.com/read/28088807/posterior-versus-anterior-circulation-stroke-in-young-adults-a-comparative-study-of-stroke-aetiologies-and-risk-factors-in-stroke-among-young-fabry-patients-sifap1
#1
Bettina von Sarnowski, Ulf Schminke, Ulrike Grittner, Christian Tanislav, Tobias Böttcher, Michael G Hennerici, Turgut Tatlisumak, Jukka Putaala, Manfred Kaps, Franz Fazekas, Christian Enzinger, Arndt Rolfs, Christof Kessler
BACKGROUND: Although 20-30% of all strokes occur in the posterior circulation, few studies have explored the characteristics of patients with strokes in the posterior compared to the anterior circulation so far. Especially data on young patients is missing. METHODS: In this secondary analysis of data of the prospective multi-centre European sifap1 study that investigated stroke and transient ischemic attack (TIA) patients aged 18-55 years, we compared vascular risk factors, stroke aetiology, presence of white matter hyperintensities (WMH) and cerebral microbleeds (CMB) between patients with ischaemic posterior circulation stroke (PCS) and those having suffered from anterior circulation stroke (ACS) based on cerebral MRI...
January 14, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28081464/tumor-angiogenesis-of-sclc-inhibited-by-decreased-expression-of-fmod-via-downregulating-angiogenic-factors-of-endothelial-cells
#2
Zhi Ao, Shilong Yu, Pin Qian, Wenhong Gao, Ruiling Guo, Xiaoxiao Dong, Jianping Xu, Ruijie Zhang, Chaowen Jiang, Fuyun Ji, Guisheng Qian
Fibromodulin (FMOD), an ECM small leucine-rich proteoglycan (SLRP), was reported to promote angiogenesis not only during wound healing, but also in optical and cutaneous angiogenesis-dependent diseases. However, whether it plays important roles in tumor angiogenesis remains unclear. To explore the role of FMOD in tumor angiogenesis of human small cell lung cancer (SCLC), initially the study analyzed the relationship of FMOD expression in cancer tissues of SCLC with clinical characteristics. The analysis revealed that the positive FMOD expression was significantly associated with extensive stage of SCLC and higher vascular density...
January 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28069505/end-point-immobilization-of-heparin-on-plasma-treated-surface-of-electrospun-polycarbonate-urethane-vascular-graft
#3
Xuefeng Qiu, Benjamin Li-Ping Lee, Xinghai Ning, Niren Murthy, Nianguo Dong, Song Li
: Small-diameter synthetic vascular grafts have high failure rate due to primarily surface thrombogenicity, and effective surface chemical modification is critical to maintain the patency of the grafts. In this study, we engineered a small-diameter, elastic synthetic vascular graft with off-the-shelf availability and anti-thrombogenic activity. Polycarbonate-urethane (PCU), was electrospun to produce nanofibrous grafts that closely mimicked a native blood vessel in terms of structural and mechanical strength...
January 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28062909/paediatric-anti-neutrophil-cytoplasmic-antibody-anca-associated-vasculitis-an-update-on-renal-management
#4
REVIEW
Lucy A Plumb, Louise Oni, Stephen D Marks, Kjell Tullus
The anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are a group of disorders characterized by necrotizing inflammation of the small to medium vessels in association with autoantibodies against the cytoplasmic region of the neutrophil. Included in this definition are granulomatosis with polyangiitis (GPA, formerly known as Wegener's granulomatosis), microscopic polyangiitis (MPA) and eosinophilic granulomatosis with polyangiitis (formerly known as Churg-Strauss syndrome). AAV are chronic, often relapsing diseases that can be organ or life threatening...
January 6, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28062495/therapeutic-targeting-of-rna-polymerase-i-with-the-small-molecule-cx-5461-for-prevention-of-arterial-injury-induced-neointimal-hyperplasia
#5
Qing Ye, Shu Pang, Wenjing Zhang, Xiaotong Guo, Jianli Wang, Yongtao Zhang, Yang Liu, Xiao Wu, Fan Jiang
OBJECTIVE: RNA polymerase I (Pol I)-dependent rRNA synthesis is a determinant factor in ribosome biogenesis and thus cell proliferation. The importance of dysregulated Pol I activity in cardiovascular disease, however, has not been recognized. Here, we tested the hypothesis that specific inhibition of Pol I might prevent arterial injury-induced neointimal hyperplasia. APPROACH AND RESULTS: CX-5461 is a novel selective Pol I inhibitor. Using this tool, we demonstrated that local inhibition of Pol I blocked balloon injury-induced neointima formation in rat carotid arteries in vivo...
January 5, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28062430/rare-and-unusual-case-of-polyarteritis-nodosa-involving-the-gastrointestinal-tract-leading-to-bowel-gangrene
#6
Arvind Vashdev Jagwani, Nik Qisti Fathi, Ruhi Fadzlyana Jailani, Andee Dzulkarnaen Zakaria
Polyarteritis nodosa (PAN) is a systemic necrotising vasculitis preferentially targeting medium-sized arteries and not related with glomerulonephritis or small vessel involvement. Clinical manifestations of PAN are multisystem. The gastrointestinal, renal, cardiac, musculoskeletal, skin and central nervous systems may be involved. The aetiology remains unknown, and the ensuing vasculitis may lead to aneurysm formation and thrombosis in any organs of the body with resultant ischaemia. PAN of the intestines is a relatively common manifestation of this disease but rarely causes bowel ischaemia resulting in necrosis...
January 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28059659/antiplatelet-therapy-for-the-prevention-of-peri-coiling-thromboembolism-in-high-risk-patients-with-ruptured-intracranial-aneurysms
#7
Nancy J Edwards, Wesley H Jones, Aditya Sanzgiri, Juan Corona, Mark Dannenbaum, Peng Roc Chen
OBJECTIVE The most frequent procedural complication of the endovascular treatment of intracranial aneurysms is a thromboembolic event (TEE); in a subset of patients, such events will cause permanent neurological disability. In patients with unruptured aneurysms, increasing evidence supports the use of periprocedural antiplatelet therapy to prevent TEEs. The object of this study was to evaluate whether patients with ruptured aneurysms and subarachnoid hemorrhage would also benefit from periprocedural antiplatelet therapy...
January 6, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28059035/the-sdldl-reduces-mrc1-expression-level-and-secretion-of-histamine-in-differentiated-m2-macrophages-from-patients-with-coronary-artery-stenosis
#8
Ameneh Yarnazari, Mohammad Najafi, Parisa Hassanpour, Syed Reza Hosseini-Fard, Abdollah Amirfarhangi
The macrophage polarization is proposed to be involved in initial events and remodeling of atherosclerosis plaques. Mannose receptor, C type 1 (MRC1) is a trans-membrane glycoprotein participating in phagocytosis and, is highly expressed in the M2 macrophages. The aim of this study was to investigate the effects of sdLDL (small dense LDL) on the MRC1 gene expression level and secretion of histamine in the differentiated M2 macrophages from monocytes of patients with coronary artery stenosis and healthy subjects...
January 5, 2017: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/28056474/-granulomatosis-with-polyangiitis
#9
Anja Kerstein, Konstanze Holl-Ulrich, Antje Müller, Gabriela Riemekasten, Peter Lamprecht
Granulomatosis with polyangiitis (GPA) is a potentially life-threatening, rare disease. The etiology is unknown. GPA is histomorphologically characterized by extravascular necrotizing granulomatous inflammation and a systemic necrotizing vasculitis of small to medium-sized vessels. Clinically, a pulmonary-renal syndrome with pulmonary infiltrates, alveolar hemorrhage and a rapidly progressive glomerulonephritis is seen in about 80% of the cases with generalized disease. GPA is associated with proteinase 3-specific anti-neutrophil cytoplasmic autoantibodies (PR3-ANCA)...
January 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28052946/dabigatran-related-leukocytoclastic-vasculitis
#10
Josiah An, Rohan Garje, Karolyn A Wanat, José Pablo Leone
Dabigatran is a non-vitamin K antagonist oral anticoagulant that has been approved for atrial fibrillation and prevention of venous thromboembolism. Its use has been increasing in the USA since serum drug levels do not need monitoring. To date, no significant skin side effects have been reported other than 4 cases of non-specific skin lesion and 2 cases of leukocytoclastic vasculitis (LCV), which is a small vessel inflammatory disease that presents as palpable purpura in lower extremities. We present a man aged 57 years with chronic deep vein thrombosis who developed palpable purpura, petechiae, swelling in lower extremities, torso and distal upper extremities on the third day after dabigatran initiation...
January 4, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28052272/ischemic-stroke-in-young-adults-of-northern-china-characteristics-and-risk-factors-for-recurrence
#11
Fang Li, Li Yang, Rui Yang, Wei Xu, Fu-Ping Chen, Nan Li, Jin-Biao Zhang
BACKGROUND: Young adults accounted for 10-14% of ischemic stroke patients. The risk factors may differ in this population from elder patients. In addition, the factors associated with stroke recurrence in this population have not been well investigated. OBJECTIVE: The study aimed to investigate the characteristics and risk factors associated with recurrence of ischemic stroke in young adults. METHODS: Clinical data of 1,395 patients of age 18-45 years who were treated between 2008 and 2014 in 3 centers located in northern China was reviewed...
January 5, 2017: European Neurology
https://www.readbyqxmd.com/read/28048943/modeling-small-angle-x-ray-scattering-data-for-low-density-lipoproteins-insights-into-the-fatty-core-phase-packing-and-transition
#12
Selma Maric, Tania Kjellerup Lind, Jeppe Lyngsø, Marite Cardenas, Jan Skov Pedersen
Atherosclerosis and its clinical consequences are the leading cause of death in the west. While many studies throughout the last decades have aimed at understanding the disease, the clinical markers in use today still fail to accurately predict the risks. The role of the main clinical indicator of today, the low density lipoprotein (LDL), in depositing fat to the vessel wall is believed to be the onset of the process. However, many subfractions of the LDL, which differ both in structure and composition, are present in the blood and amongst different individuals...
January 3, 2017: ACS Nano
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#13
S Rudin
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048454/we-de-207a-00-advances-in-image-guided-neurointerventions-clinical-pull-and-technology-push
#14
Jeffrey Siewerdsen, Rebecca Fahrig
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047800/we-de-207a-01-parallels-in-the-evolution-of-x-ray-angiographic-systems-and-devices-used-for-minimally-invasive-endovascular-therapy
#15
C Strother
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047144/we-de-207a-02-advances-in-cone-beam-ct-anatomical-and-functional-imaging-in-angio-suite-to-enable-one-stop-shop-stroke-imaging-workflow
#16
G Chen
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046482/we-de-207a-03-recent-advances-in-devices-used-in-neuro-interventions
#17
M Gounis
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045898/transcriptional-and-post-transcriptional-regulation-of-thrombospondin-1-expression-a-computational-model
#18
Chen Zhao, Jeffrey S Isenberg, Aleksander S Popel
Hypoxia is an important physiological stress signal that drives angiogenesis, the formation of new blood vessels. Besides an increase in the production of pro-angiogenic signals such as vascular endothelial growth factor (VEGF), hypoxia also stimulates the production of anti-angiogenic signals. Thrombospondin-1 (TSP-1) is one of the anti-angiogenic factors whose synthesis is driven by hypoxia. Cellular synthesis of TSP-1 is tightly regulated by different intermediate biomolecules including proteins that interact with hypoxia-inducible factors (HIFs), transcription factors that are activated by receptor and intracellular signaling, and microRNAs which are small non-coding RNA molecules that function in post-transcriptional modification of gene expression...
January 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28042517/rust-on-the-brain-from-microbleeds-and-its-relevance-to-alzheimer-studies-invited-commentary-on-cacciottolo-neurobiology-of-aging-2016
#19
M Cacciottolo, T E Morgan, C E Finch
Cerebral microbleeds (MB) and small vessel disease (SVD) with congophilic arterial angiopathy (CAA) are increasingly recognized as a variable factor in AD cognitive impairments. This commentary on our recent report on sex-ApoE interactions in MBs published this February, briefly explores three aspects of MBs that could not be fully discussed therein: I, A possible gap between the prevalence of MBs as detected by MRI and post mortem analysis; II, The role of hemoglobin-degradation products in amyloid-attributed neurodegenerative changes; and III, Possible assessment of MB by cerebrospinal fluid (CSF) assays for iron-related markers to better screen patient subgroups for AD interventions...
November 2016: Journal of Alzheimer's Disease and Parkinsonism
https://www.readbyqxmd.com/read/28041720/atrial-fibrillation-is-a-major-cause-of-stroke-in-apneic-patients-a-prospective-study
#20
M Poli, P Philip, J Taillard, S Debruxelles, P Renou, J M Orgogozo, F Rouanet, I Sibon
OBJECTIVES: Large prospective studies have established that sleep-disordered breathing (SDB) is associated with an increased incidence of cardiovascular and cerebrovascular diseases. Heterogeneous results have been published about SDB and ischaemic stroke mechanism. The aim of this study was to evaluate the relationship between poststroke apneic syndrome and stroke aetiologies according to the ASCO classification. METHODS: A total of 134 patients with acute ischaemic cerebrovascular events were prospectively included...
March 4, 2016: Sleep Medicine
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