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https://www.readbyqxmd.com/read/29332564/mesenchymal-stem-cell-therapy-in-intracerebral-haemorrhagic-stroke
#1
Gloria Bedini, Anna Bersano, Elisa R Zanier, Francesca Pischiutta, Eugenio A Parati
BACKGROUND: Spontaneous intracerebral haemorrhage (ICH) is a relatively common fatal disease, with an overall global incidence estimated at 24.6 per 100,000 person-years. Given the high degree of morbidity and mortality associated with ICH, therapies that may have neuroprotective effects are of increasing interest to clinicians. In this last context, cell therapies offer the promise of improving the disease course which cannot be addressed adequately by existing treatments. OBJECTIVE: The aim of this review is to evaluate the protective effects and molecular mechanisms of mesenchymal stem cells (MSCs) on haemorrhagic brain following ICH...
January 10, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29332028/possible-erythrocyte-contributions-to-and-exacerbation-of-the-post-thrombolytic-no-reflow-phenomenon
#2
Shang-Jen Yu, James P Buerck, Edgar A O'Rear, Thomas L Whitsett
BACKGROUND: Reperfusion injury often occurs with therapeutic intervention addressing the arterial occlusions causing acute myocardial infarction and stroke. The no-reflow phenomenon has been ascribed to leukocyte plugging and blood vessel constriction in the microcirculation. OBJECTIVE: To assess possible red cell contributions to post thrombolytic no-reflow phenomenon. METHODS: Blood clots were formed by recalcifying 1 ml of citrated fresh human venous blood and then lysed by adding 1,000 units of streptokinase (SK) at several intervals within 1 hour...
January 11, 2018: Biorheology
https://www.readbyqxmd.com/read/29330085/inflammation-following-acute-myocardial-infarction-multiple-players-dynamic-roles-and-novel-therapeutic-opportunities
#3
REVIEW
Sang-Bing Ong, Sauri Hernández-Reséndiz, Gustavo E Crespo-Avilan, Regina T Mukhametshina, Xiu-Yi Kwek, Hector A Cabrera-Fuentes, Derek J Hausenloy
Acute myocardial infarction (AMI) and the heart failure that often follows, are major causes of death and disability worldwide. As such, new therapies are required to limit myocardial infarct (MI) size, prevent adverse left ventricular (LV) remodeling, and reduce the onset of heart failure following AMI. The inflammatory response to AMI, plays a critical role in determining MI size, and a persistent pro-inflammatory reaction can contribute to adverse post-MI LV remodeling, making inflammation an important therapeutic target for improving outcomes following AMI...
January 9, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29329279/diosgenin-protects-rats-from-myocardial-inflammatory-injury-induced-by-ischemia-reperfusion
#4
Hong-Wei Wang, Hua-Jin Liu, Hua Cao, Zeng-Yong Qiao, Ya-Wei Xu
BACKGROUND Diosgenin, a phytosteroid sapogenin, has anti-inflammatory properties shown to reduce myocardial ischemia-reperfusion injury (MIRI). However, the specific mechanism by which this is achieved is not clear. This study investigated the protective effects of diosgenin on myocardial ischemia/reperfusion (I/R) and the potential anti-inflammatory mechanisms. MATERIAL AND METHODS Healthy adult male SD rats, body weight (b.w.) 250-280 g, were used to model ischemia-reperfusion injury (IRI) and were administered diosgenin (50 mg/kg and 100 mg/kg b...
January 12, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29328478/arctigenin-exerts-protective-effects-against-myocardial-infarction-via-regulation-of-inos-cox%C3%A2-2-erk1-2-and-ho%C3%A2-1-in-rats
#5
Yanmin Zhang, Yong Yang
The present study aimed to determine the protective effects of arctigenin against myocardial infarction (MI), and its effects on oxidative stress and inflammation in rats. Left anterior coronary arteries of Sprague‑Dawley rats were ligated, in order to generate an acute MI (AMI) model. Arctigenin was administered to AMI rats at 0, 50, 100 or 200 µmol/kg. Western blotting and ELISAs were performed to analyze protein expression and enzyme activity. Arctigenin was demonstrated to effectively inhibit the levels of alanine transaminase, creatine kinase‑MB and lactate dehydrogenase, and to reduce infarct size in AMI rats...
January 10, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29325945/impact-of-right-sided-aneurysm-rupture-status-and-size-of-aneurysm-on-perforator-infarction-following-microsurgical-clipping-of-posterior-communicating-artery-aneurysms-with-a-distal-transsylvian-approach
#6
Jun Tanabe, Tatsuya Ishikawa, Junta Moroi, Yoshinori Sakata, Hiromu Hadeishi
BACKGROUND: Posterior communicating artery (PCoA) aneurysms are among the most common aneurysms. Because blockage of the PCoA and perforators can cause adverse outcomes, occlusion of these arteries by surgical clipping should be avoided. The impact of factors on PCoA perforator infarction when using a distal transsylvian approach for PCoA aneurysms was examined. METHODS: A total of 183 patients underwent PCoA aneurysm clipping, excluding application of fenestrated clips...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325368/-the-effects-and-related-mechanism-of-salvianolate-on-rats-with-myocardial-ischemia-reperfusion-injury
#7
R C Yue, X L Yang, R Y Zhang, S Liu, J Liu, J Zeng, H Liang, W Wang, H X Hu, C Y Zeng
Objective: To investigate the effect and related mechanism of salvianolate on myocardial ischemia-reperfusion (I/R) injury in rats. Methods: Thirty-six adult Sprague-Dawley rats were divided into three groups (n=12 each) using random number table method: control group (coronary artery was not ligated) , I/R group (myocardial I/R model was established by ligation and opening of left anterior descending coronary artery) , and salvianolate+I/R group (5 mg/kg of salvianolate was injected through the tail vein at the time of reperfusion) ...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29321822/pursuing-meaningful-end-points-for-stem-cell-therapy-assessment-in-ischemic-cardiac-disease
#8
REVIEW
Maria Dorobantu, Nicoleta-Monica Popa-Fotea, Mihaela Popa, Iulia Rusu, Miruna Mihaela Micheu
Despite optimal interventional and medical therapy, ischemic heart disease is still an important cause of morbidity and mortality worldwide. Although not included in standard of care rehabilitation, stem cell therapy (SCT) could be a solution for prompting cardiac regeneration. Multiple studies have been published from the beginning of SCT until now, but overall no unanimous conclusion could be drawn in part due to the lack of appropriate end-points. In order to appreciate the impact of SCT, multiple markers from different categories should be considered: Structural, biological, functional, physiological, but also major adverse cardiac events or quality of life...
December 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/29321336/neuroimaging-identifies-patients-most-likely-to-respond-to-a-restorative-stroke-therapy
#9
Jessica M Cassidy, George Tran, Erin B Quinlan, Steven C Cramer
BACKGROUND AND PURPOSE: Patient heterogeneity reduces statistical power in clinical trials of restorative therapies. Valid predictors of treatment responsiveness are needed, and several have been studied with a focus on corticospinal tract (CST) injury. We studied performance of 4 such measures for predicting behavioral gains in response to motor training therapy. METHODS: Patients with subacute-chronic hemiparetic stroke (n=47) received standardized arm motor therapy, and change in arm Fugl-Meyer score was calculated from baseline to 1 month post-therapy...
January 10, 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29320889/the-cardiovascular-effect-of-incretin-based-therapies-among-type-2-diabetes-a-systematic-review-and-network-meta-analysis
#10
Shanshan Wu, Andrea Cipriani, Zhirong Yang, Jun Yang, Ting Cai, Yang Xu, Xiaochi Quan, Yuan Zhang, Sanbao Chai, Feng Sun, Siyan Zhan
OBJECTIVE: To evaluate the comparative cardiovascular safety of incretin-based therapies in patients with type 2 diabetes mellitus (T2DM). METHODS: Medline, Embase, the Cochrane Library and www.clinicaltrials.gov were searched for randomized controlled trials (RCTs) with duration≥12 weeks. Network meta-analysis was performed, followed by subgroup analysis and meta-regression. The Grading of Recommendations Assessment, Development and Evaluation system was used to assess the quality of evidence...
January 10, 2018: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/29319132/evaluation-of-changes-in-perfusion-defect-and-left-ventricular-systolic-function-using-tc-99m-tetrofosmin-single-photon-emission-computed-tomography-over-3-month-period-in-patients-of-acute-myocardial-infarction-undergoing-primary-angioplasty
#11
Anil Kumar Avs, P G Kumar, Ajay Swami, Yiteedra Dinker
BACKGROUND: After a primary transluminal coronary angioplasty (PTCA) following AMI (acute myocardial infarction), the perfusion defect and LV (left ventricular) function recover/change over a period of time. The analysis immediately after the procedure may not be true depiction of the exact success of the procedure. There is varying and scanty information available on the natural course of changes in these parameters after a successful PTCA. We hypothesized that majority of change occurs at 3-4 month period...
January 10, 2018: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/29318850/-effect-of-moxibustion-preconditioning-with-seed-sized-moxa-cones-on-myocardial-infarction-size-and-beclin-1-expression-in-myocardial-ischemia-reperfusion-injury-rats
#12
Hua Bai, Sheng-Feng Lu, Wan-Ying Chen, Ze-Hao Zhong, Yi-Huang Gu
OBJECTIVE: To observe the effect of moxibustion (Moxi) preconditioning with seed-sized moxa cones on myocardial ischemia-reperfusion injury (MI/RI) at different stages, and to analyze the correlation between this effect and the expression of autophagy related protein Beclin 1. METHODS: This study contains two parts: 1) changes of myocardial pathological injury and percentages of myocardial infarcted area at different time-points after modeling and Moxi intervention, and 2) effect of Moxi on contents of serum cardiac troponin T(cTnT) and expression of myocardial Bcl-2, Bax and Beclin 1 proteins...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29317977/stemi-due-to-big-ostial-left-main-thrombus-extending-into-aorta-challenging-situation-with-no-clear-guidelines
#13
Mohammady Shahin, Oliver Gaemperli, Patrick Siegrist, Jasmina Alibegovic
Extensive left main (LM) coronary artery thrombus is a rare and life-threatening angiographic finding with usual dramatic clinical presentation including hemodynamic instability and sudden cardiac death. The proper management of a big LM thrombus extending into aorta remains a challenging issue with no clear guidelines. In the following case report we present a 45-year-old patient with no apparent risk factors for coronary artery disease who presented with acute infero-lateral ST-elevation myocardial infarction (STEMI)...
December 2017: Cardiology Research
https://www.readbyqxmd.com/read/29315366/long-term-prognostic-value-of-single-photon-emission-computed-tomography-myocardial-perfusion-imaging-after-primary-pci-for-stemi
#14
Jeff M Smit, Maaike P Hermans, Aukelien C Dimitriu-Leen, Alexander R van Rosendael, Petra Dibbets-Schneider, Lioe-Fee de Geus-Oei, Bart J Mertens, Martin J Schalij, Jeroen J Bax, Arthur J Scholte
Aims: The aim of this study was to determine the long-term prognostic value of infarct size and myocardial ischaemia on single-photon emission computed tomography myocardial perfusion imaging (SPECT MPI) after primary percutaneous coronary intervention (PCI) for ST-segment elevation myocardial infarction (STEMI). Methods and results: In total, 1092 STEMI patients who underwent primary PCI and SPECT MPI within 1-6 months were included (median follow-up time of 6...
January 5, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29314656/mammalian-target-of-rapamycin-inhibition-attenuates-myocardial-ischaemia-reperfusion-injury-in-hypertrophic-heart
#15
Lei-Lei Ma, Xin Ma, Fei-Juan Kong, Jun-Jie Guo, Hong-Tao Shi, Jian-Bing Zhu, Yun-Zeng Zou, Jun-Bo Ge
Pathological cardiac hypertrophy aggravated myocardial infarction and is causally related to autophagy dysfunction and increased oxidative stress. Rapamycin is an inhibitor of serine/threonine kinase mammalian target of rapamycin (mTOR) involved in the regulation of autophagy as well as oxidative/nitrative stress. Here, we demonstrated that rapamycin ameliorates myocardial ischaemia reperfusion injury by rescuing the defective cytoprotective mechanisms in hypertrophic heart. Our results showed that chronic rapamycin treatment markedly reduced the phosphorylated mTOR and ribosomal protein S6 expression, but not Akt in both normal and aortic-banded mice...
January 4, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29314563/subadventitial-stenting-around-occluded-stents-a-bailout-technique-to-recanalize-in-stent-chronic-total-occlusions
#16
Lorenzo Azzalini, Aris Karatasakis, James C Spratt, Péter Tajti, Robert F Riley, Luiz F Ybarra, Stefan P Schumacher, Susanna Benincasa, Barbara Bellini, Luciano Candilio, Satoru Mitomo, Peter Henriksen, Francisco Hidalgo, Leo Timmers, Adriaan O Kraaijeveld, Pierfrancesco Agostoni, James Roy, David R Ramsay, James C Weaver, Paul Knaapen, Alexander Nap, Boris Starcevic, Soledad Ojeda, Manuel Pan, Khaldoon Alaswad, William L Lombardi, Mauro Carlino, Emmanouil S Brilakis, Antonio Colombo, Stéphane Rinfret, Kambis Mashayekhi
OBJECTIVES: To evaluate the outcomes of subadventitial stenting (SS) around occluded stents for recanalizing in-stent chronic total occlusions (IS-CTOs). BACKGROUND: There is little evidence on the outcomes of SS for IS-CTO. METHODS: We examined the outcomes of SS for IS-CTO PCI at 14 centers between July 2011 and June 2017, and compared them to historical controls recanalized using within-stent stenting (WSS). Target-vessel failure (TVF) on follow-up was the endpoint of this study, and was defined as a composite of cardiac death, target-vessel myocardial infarction, and target-vessel revascularization...
January 4, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29307080/inhibition-of-peroxynitrite-induced-mitophagy-activation-attenuates-cerebral-ischemia-reperfusion-injury
#17
Jinghan Feng, Xingmiao Chen, Binghe Guan, Caiming Li, Jinhua Qiu, Jiangang Shen
Activated autophagy/mitophagy has been intensively observed in ischemic brain, but its roles remain controversial. Peroxynitrite (ONOO-), as a representative of reactive nitrogen species, is considered as a critical neurotoxic factor in mediating cerebral ischemia-reperfusion (I/R) injury, but its roles in autophagy/mitophagy activation remain unclear. Herein, we hypothesized that ONOO- could induce PINK1/Parkin-mediated mitophagy activation via triggering dynamin-related protein 1 (Drp1) recruitment to damaged mitochondria, contributing to cerebral I/R injury...
January 6, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29306618/milrinone-induced-postconditioning-requires-activation-of-mitochondrial-ca2-sensitive-potassium-mbkca-channels
#18
Friederike Behmenburg, Lara Trefz, Marianne Dorsch, Martin Ströthoff, Alexander Mathes, Annika Raupach, André Heinen, Markus W Hollmann, Marc M Berger, Ragnar Huhn
OBJECTIVES: Cardioprotection by postconditioning requires activation of mitochondrial large-conductance Ca2+-sensitive potassium (mBKCa) channels. The involvement of these channels in milrinone-induced postconditioning is unknown. The authors determined whether cardioprotection by milrinone-induced postconditioning involves activation of mBKCa channels in the rat heart in vitro. DESIGN: Randomized, prospective, blinded laboratory investigation. SETTING: Experimental laboratory...
November 29, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29306465/prognostic-significance-of-qrs-fragmentation-and-correlation-with-infarct-size-in-patients-with-anterior-st-segment-elevation-myocardial-infarction-treated-with-percutaneous-coronary-intervention-insights-from-the-infuse-ami-trial
#19
Björn Redfors, Ioanna Kosmidou, Aaron Crowley, Akiko Maehara, Ori Ben-Yehuda, Arslan Arif, José M Dizon, Gary S Mintz, Gregg W Stone
BACKGROUND: QRS fragmentation (fQRS) is believed to reflect myocardial scar formation in patients with coronary disease. Whether early formation of fQRS in patients with ST-segment elevation myocardial infarction (STEMI) treated with percutaneous coronary intervention (PCI) is correlated with infarct size and prognosis is unknown. We assessed the prognostic value of fQRS at 60min post-PCI and its correlation with infarct size in patients with anterior STEMI managed with primary PCI. METHODS: The INFUSE-AMI trial enrolled 452 patients with anterior STEMI undergoing primary PCI...
February 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29305915/intraventricular-hemorrhage-due-to-subarachnoid-hemorrhage-does-the-severity-matter
#20
Marvin Darkwah Oppong, Oliver Gembruch, Annika Herten, Roman Frantsev, Mehdi Chihi, Philipp Dammann, Nicolai El Hindy, Michael Forsting, Ulrich Sure, Ramazan Jabbarli
OBJECT: Aneurysm rupture might be accompanied by intraventricular hemorrhage (IVH) that is associated with poor outcome of subarachnoid hemorrhage (SAH). The aim of this study was to analyze risk factors and clinical impact of IVH severity. MATERIAL AND METHODS: 995 consecutive SAH patients treated at our institution between January 2003 and June 2016 were eligible for this study. Clinical and radiological findings were correlated with the presence and severity of IVH assessed with the original Graeb score...
January 3, 2018: World Neurosurgery
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