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https://www.readbyqxmd.com/read/29146831/stent-assisted-coiling-of-cerebral-aneurysms-a-single-center-clinical-and-angiographic-analysis
#1
Jun Wang, Jan Vargas, Alejandro Spiotta, Imran Chaudry, Raymond D Turner, Jonathan Lena, Aquilla Turk
OBJECTIVE: This study retrospectively compared the clinical and angiographic outcomes of treating cerebral aneurysms with Neuroform (NEU), Enterprise (EP), and Low-profile Visualized Intraluminal Support (LVIS/LVIS Jr) stents. MATERIALS AND METHODS: We conducted a retrospective analysis of a procedural database. All aneurysm procedures using any of the three types of self-expanding nitinol stents (NEU, EP and LVIS/LVIS Jr) were included. Intra-procedure complications, post-procedure complications, and angiographic results (Raymond-Roy grade scale, RRGS) were analyzed retrospectively...
November 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29146054/lymphocytic-thrombophilic-arteritis-a-distinct-inflammatory-type-i-interferon-and-c5b-9-mediated-subcutaneous-endovasculitis
#2
Cynthia M Magro, Jad Saab
BACKGROUND: Lymphocytic thrombophilic arteritis is a recently recognized subcuticular larger vessel vasculitis characterized by striking vascular luminal thrombosis. METHODS: The clinical features, histopathology and phenotypic profile of ten patients with lymphocytic thrombophilic arteritis were explored in an attempt to better define the entity from a clinical and pathophysiologic perspective. RESULTS: The patients were all female (mean age of 43) presenting with generally asymptomatic lower and upper extremity hyperpigmented macules...
December 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29141786/intraluminal-thrombus-is-associated-with-early-rupture-of-abdominal-aortic-aneurysm
#3
Stephen J Haller, Jeffrey D Crawford, Katherine M Courchaine, Colin J Bohannan, Gregory J Landry, Gregory L Moneta, Amir F Azarbal, Sandra Rugonyi
BACKGROUND: The implications of intraluminal thrombus (ILT) in abdominal aortic aneurysm (AAA) are currently unclear. Previous studies have demonstrated that ILT provides a biomechanical advantage by decreasing wall stress, whereas other studies have associated ILT with aortic wall weakening. It is further unclear why some aneurysms rupture at much smaller diameters than others. In this study, we sought to explore the association between ILT and risk of AAA rupture, particularly in small aneurysms...
November 12, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29141596/effects-of-angiotensin-receptor-blockers-on-neointimal-characteristics-in-angina-patients-requiring-stent-implantation-optical-coherence-tomography-analysis
#4
Jae Young Cho, Soon Jun Hong, Do-Sun Lim
BACKGROUND: Angiotensin receptor blockers (ARBs) are known for its anti-inflammatory and anti-proliferative effects. The aim of the study was to evaluate long-term effects of ARBs on morphologic characteristics of stent restenosis in patients with coronary artery disease requiring stent implantation by optical coherence tomography (OCT). METHODS: Patients with coronary artery disease having history of drug-eluting stent implantation (n = 407) were analyzed on the basis of ARB therapy as the ARB group (n = 162) and the non-ARB group (n = 245)...
November 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29140882/extravascular-migratory-metastasis-pericytic-mimicry-in-sarcomatoid-squamous-cell-carcinoma-of-the-vulva-a-report-of-2-cases
#5
M H Eleanor Koay, Colin J R Stewart
Extravascular migratory metastasis (EVMM), also known as pericytic mimicry or angiotropism, is a mechanism of angiocentric tumor spread that has been investigated mainly in cutaneous malignant melanoma where it has been associated with an increased risk of metastasis. In EVMM, the tumor cells spread along the external (ablumenal) aspect of vessels without breaching the endothelium, a process that is therefore distinct from the more widely recognized intraluminal invasion. Although EVMM has also been reported in a limited range of other tumor types, to our knowledge it has not been described in squamous cell carcinoma (SCC)...
November 14, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29140431/microvascular-adaptations-to-exercise-protective-effect-of-pgc-1-alpha
#6
Andrew O Kadlec, Chad Barnes, Matthew J Durand, David D Gutterman
BACKGROUND: Sedentary behavior and obesity are major risk factors for cardiovascular disease. Regular physical activity has independent protective effects on the cardiovascular system, but the mechanisms responsible remain elusive. Recent studies suggest that the protein peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) participates in the response to exercise training. We hypothesized that the arterioles of athletes maintain dilation to flow despite combined inhibition of multiple vasodilators, but loss of PGC-1α renders these vessels susceptible to inhibition of a single vasodilator pathway...
November 11, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/29136947/the-effect-of-the-dipeptidyl-peptidase-4-inhibitor-sitagliptin-on-gentamicin-nephrotoxicity-in-mice
#7
Yousuf M Al Suleimani, Aly M Abdelrahman, Turan Karaca, Priyadarsini Manoj, Mohammed Ashique, Abderrahim Nemmar, Badreldin H Ali
This study aimed at investigating the possible ameliorative effects of sitagliptin in mice with gentamicin (GEN) nephrotoxicity. Sitagliptin was given to the animals at an oral dose of 10mgkg(-1) per day for 10days, and in some of these mice, GEN was injected intraperitoneally at a dose of 100mgkg(-1) per day during the last seven days of the treatment. Nephrotoxicity was evaluated histopathologically by light microscopy and biochemically by measuring several indices in plasma, urine and renal cortex homogenates...
November 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29136128/the-proton-activated-receptor-gpr4-modulates-intestinal-inflammation
#8
Yu Wang, Cheryl de Vallière, Pedro H Imenez Silva, Irina Leonardi, Sven Gruber, Alexandra Gerstgrasser, Hassan Melham, Achim Weber, Katharina Leucht, Lutz Wolfram, Martin Hausmann, Carsten Krieg, Koray Thomasson, Onur Boyman, Isabelle Frey-Wagner, Gerhard Rogler, Carsten A Wagner
BACKGROUND AND AIMS: During active inflammation tissue intraluminal intestinal pH is decreased in patients with inflammatory bowel disease (IBD). Acidic pH may play a role in IBD pathophysiology. Recently, proton sensing G-protein coupled receptors were identified, including GPR4, OGR1 (GPR68), and TDAG8 (GPR65). We investigated whether GPR4 is involved in intestinal inflammation. METHODS: The role of GPR4 was assessed in murine colitis models: chronic dextran sulphate sodium (DSS) administration and by crossbreeding into an IL-10 deficient background for development of spontaneous colitis...
November 9, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29134503/short-and-long-term-outcomes-of-endoscope-assisted-laparoscopic-wedge-resection-for-gastric-submucosal-tumors-adjacent-to-esophagogastric-junction
#9
Xin Ye, Jianchun Yu, Weiming Kang, Zhiqiang Ma, Zhigang Xue
BACKGROUND: Laparoscopic wedge resection (LWR) is used to treat gastric submucosal tumors (SMTs). However, LWR can injure the cardia if tumors are near the esophagogastric junction (EGJ), resulting in gastric stenosis. This study's purpose was to summarize our experience with endoscope-assisted LWR for gastric SMTs within 3 cm of the EGJ and to verify the procedure's feasibility and safety. METHODS: Data from 91 consecutive patients with gastric SMTs within 3 cm of the EGJ who underwent endoscope-assisted LWR at our hospital from 2007 to 2017 were obtained from a prospectively maintained database...
November 13, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29132938/endovascular-management-of-extracranial-occlusions-at-the-hyperacute-phase-of-stroke-with-tandem-occlusions
#10
Marc-Antoine Labeyrie, Vittorio Civelli, Peggy Reiner, Emmanuel Cognat, Armand Aymard, Annouk Bisdorff, Jean-Pierre Saint-Maurice, Emmanuel Houdart
BACKGROUND AND PURPOSE: The management of cervical artery occlusions in hyperacute stroke with tandem cervical/intracranial occlusions has not yet become standardized, especially when the circle of Willis is effective. METHODS: We retrospectively analyzed the safety and accuracy of current approaches to manage the cervical occlusion in consecutive patients with tandem occlusions addressed for intracranial mechanical thrombectomy(MT) in our department from January 2012 to May 2017...
November 10, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/29125824/intraluminal-valves-development-function-and-disease
#11
REVIEW
Xin Geng, Boksik Cha, Md Riaj Mahamud, R Sathish Srinivasan
The circulatory system consists of the heart, blood vessels and lymphatic vessels, which function in parallel to provide nutrients and remove waste from the body. Vascular function depends on valves, which regulate unidirectional fluid flow against gravitational and pressure gradients. Severe valve disorders can cause mortality and some are associated with severe morbidity. Although cardiac valve defects can be treated by valve replacement surgery, no treatment is currently available for valve disorders of the veins and lymphatics...
November 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29123158/inhibition-of-phosphatidylinositol-3-kinease-suppresses-formation-and-progression-of-experimental-abdominal-aortic-aneurysms
#12
Jing Yu, Rui Liu, Jianhua Huang, Lixin Wang, Wei Wang
Accumulating evidence suggests an important role of Phosphatidylinositol 3-kinease (PI3K) pathway in inflammatory cells infiltration. Given  the essential role of inflammatory cells infiltration during the formation and progression of abdominal aortic aneurysm (AAA), to investigate the possibility of preventing AAA formation and progression via targeting PI3K is anticipated. Here, experimental AAAs was created in rats by transient intraluminal porcine pancreatic elastase (PPE) infusion into the infrarenal aorta firstly...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29121843/bifurcated-stent-technique-a-viable-option-for-treatment-of-patients-with-unusual-anatomy-presenting-with-combined-chronic-mesenteric-ischemia-and-diffuse-ischemic-gastric-ulcers
#13
Jesse Manunga
Treatment of chronic mesenteric ischemia has evolved over the last two decades. Endovascular therapy is now the treatment of choice for patients with lesions amenable to such an approach. Open revascularization remains the standard of care but is frequently being reserved for lesions containing intraluminal thrombus or severe calcification. In most cases, celiac axis (CA) stenting is not needed since revascularization of the superior mesenteric artery (SMA) alone results in symptomatic resolution. This report describes a case of a patient with chronic mesenteric ischemia and diffuse gastric ulcers found to have a common origin of the SMA and CA that was treated endovascularly using a bifurcated stent technique...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29119844/symptom-relief-and-health-related-quality-of-life-in-globus-patients-a-prospective-study
#14
Pia Järvenpää, Assi Laatikainen, Risto P Roine, Harri Sintonen, Perttu Arkkila, Leena-Maija Aaltonen
Globus may be a persistent symptom impairing patients' quality of life. Diagnostics and treatment are controversial but some globus patients may benefit from reassurance and attention. We investigated how globus symptoms change during a short-term follow-up without any treatment after an examination by an ear, nose and throat (ENT) physician and further diagnostic procedures. We also surveyed whether patients with persistent globus suffer from simultaneous voice problems. The study comprised 30 consecutive globus patients referred to Helsinki University Hospital, Department of Otorhinolaryngology - Head and Neck Surgery...
November 9, 2017: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/29115002/clinical-and-radiological-features-of-pulmonary-artery-sarcoma-a-report-of-nine-cases
#15
Xin Pu, Man Song, Xiaoyong Huang, Guangfa Zhu, Dong Chen, Huili Gan, Lianjun Huang
OBJECTIVE: To improve our understanding and facilitate early diagnosis of pulmonary artery sarcoma (PAS). METHODS: The clinical and radiological features of 9 histopathologically confirmed PAS patients were retrospectively analyzed. RESULTS: Our PAS cohort consisted of 5 males and 4 females, with insidious presentation, the main symptoms were dyspnea (88.9%), syncope (33.3%), palpitations (22.2%), chest pain (22.2%), hemoptysis (11.1%) and constitutional symptoms, including fever (44...
November 8, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29108953/investigating-the-function-of-gdt1p-in-yeast-golgi-glycosylation
#16
Eudoxie Dulary, Shin-Yi Yu, Marine Houdou, Geoffroy de Bettignies, Valérie Decool, Sven Potelle, Sandrine Duvet, Marie-Ange Krzewinski-Recchi, Anne Garat, Gert Matthijs, Yann Guerardel, François Foulquier
The Golgi ion homeostasis is tightly regulated to ensure essential cellular processes such as glycosylation, yet our understanding of this regulation remains incomplete. Gdt1p is a member of the conserved Uncharacterized Protein Family (UPF0016). Our previous work suggested that Gdt1p may function in the Golgi by regulating Golgi Ca(2+)/Mn(2+) homeostasis. NMR structural analysis of the polymannan chains isolated from yeasts showed that the gdt1Δ mutant cultured in presence of high Ca(2+) concentration, as well as the pmr1Δ and gdt1Δ/pmr1Δ strains presented strong late Golgi glycosylation defects with a lack of α-1,2 mannoses substitution and α-1,3 mannoses termination...
November 3, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29105602/a-new-low-profile-visualized-intraluminal-support-lvis-device-lvis-blue-laboratory-comparison-between-old-and-new-lvis
#17
Joonho Chung, Yoshikazu Matsuda, Jessica Nelson, Kiffon Keigher, Demetrius K Lopes
Objectives The Low-profile Visualized Intraluminal Support (LVIS) device is a flexible intracranial stent. The first generation of this system had significant challenges in consistently providing good wall apposition and aneurysm neck coverage. A new modified LVIS, LVIS Blue (Blue), has been developed to address these issues. The purpose of this study is to report a laboratory comparison of wall apposition and aneurysm neck coverage between the original LVIS and Blue. Methods In bench-top experiments, we noted the visual appearance of the devices and evaluated changes in stent cell angles, neck coverage surface area (%), and stent cell crossing profile for microcatheters using a fusiform aneurysm model...
November 5, 2017: Neurological Research
https://www.readbyqxmd.com/read/29105577/comparative-assessment-of-patient-outcomes-with-intraluminal-or-subintimal-crossing-of-infrainguinal-peripheral-artery-chronic-total-occlusions
#18
Ananya Kondapalli, Haekyung Jeon-Slaughter, Hua Lu, Hao Xu, Houman Khalili, Anand Prasad, Ehrin J Armstrong, Emmanouil S Brilakis, Subhash Banerjee
This study compares procedural complications and clinical outcomes between subintimal crossing versus intraluminal crossing during endovascular treatment of infrainguinal peripheral artery chronic total occlusions (CTO). We identified 1335 CTO interventions in 1001 patients from the multicenter Excellence in Peripheral Artery Disease (XLPAD) registry from January 2005 to October 2015. Outcomes included 30-day and 12-month all-cause death, non-fatal myocardial infarction or stroke, peripheral artery stent, or vessel, thrombosis (ST), need for any target limb endovascular or surgical revascularization, target limb major amputation and procedural complications...
November 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/29102265/does-elevated-wall-tension-cause-aortic-aneurysm-rupture-investigation-using-a-subject-specific-heterogeneous-model
#19
Timothy K Chung, Erasmo S da Silva, Suresh M L Raghavan
OBJECTIVE: To investigate whether peak wall tension in abdominal aortic aneurysm occurs at the site of rupture to test for a causative relationship. METHODS: Four ruptured and nine unruptured AAA were harvested whole from cadavers, followed by regional measurements of wall thickness, elastic parameters and failure tension. Finite element models were developed with subject-specific load-free AAA morphology and heterogeneous properties interpolated using a geodesic distance weighted approach from the measurements...
October 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29101679/simple-and-quick-method-to-obtain-a-decellularized-functional-liver-bioscaffold
#20
Matteo Ghiringhelli, Alessandro Zenobi, Stefano Brizzola, Fulvio Gandolfi, Valentino Bontempo, Sandro Rossi, Tiziana A L Brevini, Fabio Acocella
The development of new approaches for organ transplantation has become crucial in the last years. In particular, organ engineering, involving the preparation of acellular matrices that provide a natural habitat for reseeding with an appropriate population of cells, is an attractive although technically demanding approach. We here describe a method that allows for the derivation of functional in vitro hepatic organoids and that does not require a previous selection of all the parenchymal hepatocytes and non-parenchymal cells, namely, Kupffer cells, liver endothelial cells, and hepatic stellate cells...
November 4, 2017: Methods in Molecular Biology
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