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https://www.readbyqxmd.com/read/28441632/emergency-computed-tomography-in-patients-with-first-seizure
#1
Kaisa Kotisaari, Pekka Virtanen, Nina Forss, Daniel Strbian, Filip Scheperjans
PURPOSE: To determine the frequency of emergent imaging findings on head computed tomography (CT) in an adult population of first seizure (FS) patients presenting to an emergency department (ED); and to search for associations between clinical features and emergent imaging findings among these patients. METHODS: For this retrospective registry-based study, adult FS patients presenting to Helsinki University Hospital ED in 2006 were identified based on ICD-10 diagnosis...
April 17, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28440739/featured-article-pharmacological-postconditioning-with-delta-opioid-attenuates-myocardial-reperfusion-injury-in-isolated-porcine-hearts
#2
Maria Seewald, James A Coles, Daniel C Sigg, Paul A Iaizzo
Ischemic preconditioning has been utilized to protect the heart from ischemia prior to ischemia onset, whereas postconditioning is employed to minimize the consequences of ischemia at the onset of reperfusion. The underlying mechanisms and pathways of ischemic pre- and postconditioning continue to be investigated as therapeutic targets. We evaluated the administration of a delta opioid agonist or cariporide on various parameters associated with myocardial reperfusion injury upon reperfusion of isolated porcine hearts...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28438069/emerging-graft-protective-strategies-in-clinical-liver-transplantation
#3
Arash Nickkholgh, Daniel Maluf
There have been remarkable efforts to characterize the key responsible pathophysiologic mechanisms, as well as to ameliorate the organ preservation and ischemia reperfusion injury with the ultimate goal of expanding the donor pool and further improvement of the outcomes of the liver transplantation. Attempts to translate the experimental results from bench to bedside have yielded no valid protective concepts in the field of clinical liver transplantation yet. Nonetheless, there has been a considerable amount of ongoing clinical research to develop clinically relevant graft protective strategies...
April 24, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28424623/notch-signaling-in-ischemic-damage-and-fibrosis-evidence-and-clues-from-the-heart
#4
REVIEW
Silvia Nistri, Chiara Sassoli, Daniele Bani
Notch signaling is a major intercellular coordination mechanism highly conserved throughout evolution. In vertebrates, Notch signaling is physiologically involved in embryo development, including mesenchymal cell commitment, formation of heart tissues and angiogenesis. In post-natal life, Notch signaling is maintained as a key mechanism of cell-cell communication and its dysregulations have been found in pathological conditions such as ischemic and fibrotic diseases. In the heart, Notch takes part in the protective response to ischemia, being involved in pre- and post-conditioning, reduction of reperfusion-induced oxidative stress and myocardial damage, and cardiomyogenesis...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28424241/microbiota-induced-antibodies-are-essential-for-host-inflammatory-responsiveness-to-sterile-and-infectious-stimuli
#5
Daniel Cisalpino, Caio T Fagundes, Camila B Brito, Fernando R Ascenção, Celso M Queiroz-Junior, Angélica T Vieira, Lirlândia P Sousa, Flávio A Amaral, Leda Q Vieira, Jacques R Nicoli, Mauro M Teixeira, Danielle G Souza
The indigenous intestinal microbiota is frequently considered an additional major organ of the human body and exerts profound immunomodulating activities. Germ-free (GF) mice display a significantly different inflammatory responsiveness pattern compared with conventional (CV) mice, and this was dubbed a "hyporesponsive phenotype." Taking into account that the deposition of immune complexes is a major event in acute inflammation and that GF mice have a distinct Ig repertoire and B cell activity, we aimed to evaluate whether this altered Ig repertoire interferes with the inflammatory responsiveness of GF mice...
April 19, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28412216/hydroalcoholic-crude-extract-of-casearia-sylvestris-sw-reduces-chronic-post-ischemic-pain-by-activation-of-pro-resolving-pathways
#6
Anna P Piovezan, Ana P Batisti, Maria L A C S Benevides, Bruna L Turnes, Daniel F Martins, Luiz Kanis, Elisa C W Duarte, Alberto J Cavalheiro, Paula C P Bueno, Michael P Seed, Lucy V Norling, Dianne Cooper, Sarah Headland, Patrícia R P S Souza, Mauro Perretti
ETHNOPHARMACOLOGICAL RELEVANCE: Casearia sylvestris Sw. is widely used in popular medicine to treat conditions associated with pain. AIM OF THE STUDY: The present study investigated the influence of hydroalcoholic crude extract of Casearia sylvestris (HCE-CS) and contribution of pro-resolving mediators on mechanical hyperalgesia in a mouse model of chronic post-ischemia pain (CPIP). METHODS AND RESULTS: Male Swiss mice were subjected to ischemia of the right hind paw (3h), then reperfusion was allowed...
April 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28405326/von-willebrand-factor-and-alkaline-phosphatase-predict-re-transplantation-free-survival-after-the-first-liver-transplantation
#7
Andreas Wannhoff, Conrad Rauber, Kilian Friedrich, Christian Rupp, Wolfgang Stremmel, Karl Heinz Weiss, Peter Schemmer, Daniel N Gotthardt
BACKGROUND: After liver transplantation (LT), there are liver-related, infectious and cardiovascular complications that contribute to reduced graft survival. These conditions are associated with an increase in the Von Willebrand factor antigen (VWF-Ag), which was previously correlated with survival in cirrhotic patients. OBJECTIVE: Evaluate VWF-Ag as a predictive marker of re-transplantation-free survival in patients after LT. METHODS: We measured VWF-Ag in patients after first LT and then followed them prospectively with regard to the primary endpoint, namely re-transplantation-free survival...
February 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28404744/the-role-of-cb1-in-intestinal-permeability-and-inflammation
#8
Mustafa A Karwad, Daniel G Couch, Elena Theophilidou, Sarir Sarmad, David A Barrett, Michael Larvin, Karen L Wright, Jonathan N Lund, Saoirse E O'Sullivan
The endocannabinoid system has previously been shown to play a role in the permeability and inflammatory response of the human gut. The goal of our study was to determine the effects of endogenous anandamide (AEA) and 2-arachidonoyl glycerol (2-AG) on the permeability and inflammatory response of intestinal epithelium under normal, inflammatory, and hypoxic conditions. Human intestinal mucosa was modeled using Caco-2 cells. Human tissue was collected from planned colorectal resections. Accumulation of AEA and 2-AG was achieved by inhibiting their metabolizing enzymes URB597 (a fatty acid amide hydrolase inhibitor) and JZL184 (a monoacylglycerol lipase inhibitor)...
April 12, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28403128/an-oxygenated-and-transportable-machine-perfusion-system-fully-rescues-liver-grafts-exposed-to-lethal-ischemic-damage-in-a-pig-model-of-dcd-liver-transplantation
#9
Philippe Compagnon, Eric Levesque, Hassen Hentati, Mara Disabato, Julien Calderaro, Cyrille Feray, Anne Corlu, José Laurent Cohen, Ismail Ben Mosbah, Daniel Azoulay
BACKGROUND: Control of warm ischemia (WI) lesions that occur with donation after circulatory death (DCD) would significantly increase the donor pool for liver transplantation. We aimed to determine whether a novel, oxygenated and hypothermic machine perfusion device (HMP Airdrive system) improves the quality of livers derived from DCDs using a large animal model. METHODS: Cardiac arrest was induced in female large white pigs by IV injection of potassium chloride...
April 11, 2017: Transplantation
https://www.readbyqxmd.com/read/28389572/prognostic-value-of-noninvasive-cardiovascular-testing-in-patients-with-stable-chest-pain-insights-from-the-promise-trial
#10
Udo Hoffmann, Maros Ferencik, James E Udelson, Michael H Picard, Quynh A Truong, Manesh R Patel, Megan Huang, Michael J Pencina, Daniel B Mark, John F Heitner, Christopher B Fordyce, Patricia A Pellikka, Jean-Claude Tardif, Matthew J Budoff, George Nahhas, Benjamin J Chow, Andrzej S Kosinski, Kerry L Lee, Pamela S Douglas
Background -Optimal management of patients with stable chest pain relies on the prognostic information provided by noninvasive cardiovascular testing, but there are limited data from randomized trials comparing anatomic with functional testing. Methods -In the Prospective Multicenter Imaging Study for Evaluation of Chest Pain (PROMISE) trial, patients with stable chest pain and intermediate pre-test probability for obstructive coronary artery disease (CAD) were randomized to functional testing (exercise electrocardiography, nuclear stress, or stress echocardiography) or coronary computed tomography angiography (CTA)...
April 7, 2017: Circulation
https://www.readbyqxmd.com/read/28360090/testosterone-prevents-cutaneous-ischemia-and-necrosis-in-males-through-complementary-estrogenic-and-androgenic-actions
#11
Caroline Chenu, Marine Adlanmerini, Frederic Boudou, Elodie Chantalat, Anne-Laure Guihot, Celine Toutain, Isabelle Raymond-Letron, Patricia Vicendo, Alain-Pierre Gadeau, Daniel Henrion, Jean-Francois Arnal, Francoise Lenfant
OBJECTIVE: Chronic nonhealing wounds are a substantial medical concern and are associated with morbidity and mortality; thus, new treatment strategies are required. The first step toward personalized/precision medicine in this field is probably in taking sex differences into account. Impaired wound healing is augmented by ischemia, and we previously demonstrated that 17β-estradiol exerts a major preventive effect against ischemia-induced skin flap necrosis in female mice. However, the equivalent effects of testosterone in male mice have not yet been reported...
March 30, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28357099/spontaneous-regression-of-hepatocellular-carcinoma-in-a-caucasian-male-patient-a-case-report-and-review-of-the-literature
#12
Daniel P Noij, Petrus W G van Der Linden
Hepatocellular carcinoma (HCC) is the most common primary hepatic cancer. As it often presents at an advanced stage, it generally has a poor prognosis. Spontaneous regression is a rare finding in HCC, and is often associated with tumour ischemia or a systemic inflammatory response. We herein present the case of a Caucasian patient with spontaneous regression of advanced HCC, not associated with either mechanism. Our patient was a 74-year old Caucasian male who presented with advanced biopsy-proven HCC, with α-fetoprotein levels of >16,600 kU/l...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28327941/degree-of-vascular-encasement-in-sphenoid-wing-meningiomas-predicts-postoperative-ischemic-complications
#13
D Jay McCracken, Raymond A Higginbotham, Jason H Boulter, Yuan Liu, John A Wells, Sameer H Halani, Amit M Saindane, Nelson M Oyesiku, Daniel L Barrow, Jeffrey J Olson
BACKGROUND: Sphenoid wing meningiomas (SWMs) can encase arteries of the circle of Willis, increasing their susceptibility to intraoperative vascular injury and severe ischemic complications. OBJECTIVE: To demonstrate the effect of circumferential vascular encasement in SWM on postoperative ischemia. METHODS: A retrospective review of 75 patients surgically treated for SWM from 2009 to 2015 was undertaken to determine the degree of circumferential vascular encasement (0°-360°) as assessed by preoperative magnetic resonance imaging (MRI)...
January 28, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28323187/activation-of-cytotoxic-natural-killer-cells-after-aneurysmal-subarachnoid-haemorrhage
#14
Daniel Spitzer, Nina Johanna Spitzer, Monika Deininger, Christian Rainer Wirtz, Ralph König, Timo Burster, Thomas Kapapa
OBJECTIVE: Cell-mediated inflammation is critical in development of cerebrovascular complications after aneurysmal subarachnoid haemorrhage (aSAH). We analysed the course for activated CD16(bright)CD56(dim) cytotoxic NKCSF cells (NK) in cerebrospinal fluid (CSF) of 15 patients. METHODS: Patients were classified by occurrence of cerebral vasospasm and delayed cerebral ischemia. NK were monitored by flow cytometry between day 1 and 14 after haemorrhage. RESULTS: 12 (80%) patients developed CV with a mean day of detection at 3...
March 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28296641/root-cause-analysis-of-deaths-in-st-segment-elevation-myocardial-infarctions-treated-with-primary-pci-what-can-we-do-better
#15
Fredy El Sakr, Mohamad Kenaan, Daniel Menees, Milan Seth, Hitinder S Gurm
OBJECTIVE: Recent data demonstrate that mortality of patients with ST-elevation myocardial infarction (STEMI) has not changed despite dramatic reduction in door-to-balloon times. Identifying potential areas in care that can be further optimized to decrease mortality remains a priority. METHODS: We performed a root cause analysis of all patients who died following primary percutaneous coronary intervention (PCI) during index hospitalization from 2008 to 2013 at the University of Michigan...
May 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28295971/mid-term-outcomes-of-orbital-atherectomy-combined-with-drug-coated-balloon-angioplasty-for-treatment-of-femoropopliteal-disease
#16
T Raymond Foley, Ryan P Cotter, Damianos G Kokkinidis, Daniel D Nguyen, Stephen W Waldo, Ehrin J Armstrong
PURPOSE: To assess the intraprocedural and mid-term outcomes of orbital atherectomy (OA) combined with drug-coated balloon (DCB) angioplasty for the treatment of calcified femoropopliteal disease. METHODS: In this single-center cohort, 89 patients (139 lesions) were treated with DCB angioplasty for claudication or critical limb ischemia (CLI). Angiographic characteristics and procedural outcomes were reviewed for patients treated with or without adjunctive OA. Lesion calcification was graded using two previously published scoring systems, the angiographic calcium score (ACS) and the peripheral artery calcification scoring system (PACSS)...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28294064/knockdown-of-c-c-chemokine-receptor-5-ccr5-is-protective-against-cerebral-ischemia-and-reperfusion-injury
#17
Edna Constanza Gómez Victoria, Eliana Cristina de Brito Toscano, Ana Clara de Sousa Cardoso, Daniele Gonçalves da Silva, Aline Silva de Miranda, Lucíola da Silva Barcelos, Michelle Adriane Sugimoto, Lirlândia Pires Sousa, Isabel Vieira de Assis Lima, Antônio Carlos Pinheiro de Oliveira, Fátima Brant, Fabiana Simão Machado, Mauro Martins Teixeira, Antônio Lúcio Teixeira, Milene Alvarenga Rachid
BACKGROUND: Stroke is the second leading cause of death and a major cause of disability of adults worldwide. Inflammatory processes are known to contribute to the pathophysiology of cerebral ischemia, especially following reperfusion. Chemokines and their receptors are involved in migration of leukocytes and have been implicated in pathogenesis of ischemic stroke. OBJECTIVE: In the present study, we investigated the effects of C-C chemokine receptor type 5 (CCR5) deficiency on neurological outcome, brain damage and expression of pro-inflammatory chemokines: chemokine (C-X-C motif) ligand 1 (CXCL1), chemokine (CC motif) ligand 3 (CCL3) and chemokine (C-C motif) ligand 5 (CCL5), and the brain-derived neurotrophic factor (BDNF)...
March 13, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28288780/neuroprotective-effects-of-gabaergic-phenols-correlated-with-their-pharmacological-and-antioxidant-properties
#18
Leticia Delgado-Marín, Mariela Sánchez-Borzone, Daniel A García
AIMS: Various investigations have demonstrated the protective capacity of general anesthetics as neuroprotective agents. The effects of propofol against ischemia are known to reside in its antioxidant properties and its GABAergic activity. Other aromatic alcohols have also been reported as able to protect neurons against oxidative damage. The aim of this work is to evaluate the potential neuroprotective effect of some phenols, structurally analogues of propofol, with proven GABAergic activity...
April 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/28273223/endovascular-therapeutic-options-for-the-treatment-of-aortoiliac-aneurysms
#19
Bernardo Massière, Arno VON-Ristow, Alberto Vescovi, Daniel Leal, Lea Mirian Barbosa Fonseca
About 20% of patients with abdominal aortic aneurysms have associated iliac aneurysms. Distal sealing during the endovascular treatment of aortic-iliac aneurysms is a challenge that has led to the emergence of several technical options to achieve this goal over the years. Internal iliac artery embolization is associated with the risk of ischemic complications, such as gluteal necrosis, lower limb neurological deficit, colonic ischemia, impotence and gluteal claudication. This article summarizes the technical options for endovascular treatment of aortoiliac aneurysms with different approaches to preserving the patency of internal iliac arteries...
December 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28272306/akt2-blocks-nucleus-translocation-of-apoptosis-inducing-factor-aif-and-endonuclease-g-endog-while-promoting-caspase-activation-during-cardiac-ischemia
#20
Shuai Yang, Xinmei Zhao, Hui Xu, Fan Chen, Yitao Xu, Zhe Li, Daniel Sanchis, Liang Jin, Yubin Zhang, Junmei Ye
The AKT (protein kinase B, PKB) family has been shown to participate in diverse cellular processes, including apoptosis. Previous studies demonstrated that protein kinase B2 (AKT2(-/-)) mice heart was sensitized to apoptosis in response to ischemic injury. However, little is known about the mechanism and apoptotic signaling pathway. Here, we show that AKT2 inhibition does not affect the development of cardiomyocytes but increases cell death during cardiomyocyte ischemia. Caspase-dependent apoptosis of both the extrinsic and intrinsic pathway was inactivated in cardiomyocytes with AKT2 inhibition during ischemia, while significant mitochondrial disruption was observed as well as intracytosolic translocation of cytochrome C (Cyto C) together with apoptosis-inducing factor (AIF) and endonuclease G (EndoG), both of which are proven to conduct DNA degradation in a range of cell death stimuli...
March 6, 2017: International Journal of Molecular Sciences
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