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https://www.readbyqxmd.com/read/28229409/endothelial-progenitor-cells-procedure-for-cell-isolation-and-applications
#1
Garikipati V N Srikanth, Raj Kishore
Bone marrow endothelial progenitor cells (EPCs) have shown a great promise to promote ischemic tissue neovascularization and to attenuate ischemic injury in a variety of animal models, which led to EPC-based clinical trials that yielded modest but promising results. Some of the variables in the use of EPCs relate to their differential isolation and characterization protocols since the EPC literature does not identify a unique marker for these vascular progenitors. In this chapter, we present step-by-step protocols for the isolation of EPCs, their characterization and culture conditions, and their potential use in basic and clinical research...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28229050/association-between-beta-fibrinogen-c148t-gene-polymorphism-and-risk-of-ischemic-stroke-in-a-north-indian-population-a-case-control-study
#2
Amit Kumar, Shubham Misra, Pradeep Kumar, Ram Sagar, Kameshwar Prasad
BACKGROUND AND PURPOSE: Stroke is a multifactorial disease influenced by both genetic and environmental factors. The aim of this case-control study was to determine the association between β-fibrinogen C148T (rs1800787) gene polymorphism and susceptibility to ischemic stroke (IS) in a North Indian population. METHODS: In the present case-control study, genotyping was performed using the PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) method on 250 IS patients and 250 age- and sex-matched controls...
January 2017: Pulse (Basel, Switzerland)
https://www.readbyqxmd.com/read/28228574/delays-in-door-to-needle-times-and-their-impact-on-treatment-time-and-outcomes-in-get-with-the-guidelines-stroke
#3
Noreen Kamal, Shubin Sheng, Ying Xian, Roland Matsouaka, Michael D Hill, Deepak L Bhatt, Jeffrey L Saver, Mathew J Reeves, Gregg C Fonarow, Lee H Schwamm, Eric E Smith
BACKGROUND AND PURPOSE: Despite quality improvement programs such as the American Heart Association/American Stroke Association Target Stroke initiative, a substantial portion of acute ischemic stroke patients are still treated with tissue-type plasminogen activator (alteplase) later than 60 minutes from arrival. This study aims to describe the documented reasons for delays and the associations between reasons for delays and patient outcomes. METHODS: We analyzed the characteristics of 55 296 patients who received intravenous alteplase in 1422 hospitals participating in Get With The Guidelines-Stroke from October 2012 to April 2015, excluding transferred patients and inpatient strokes...
February 22, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28226660/identifying-stereotypic-evolving-micro-scale-seizures-sems-in-the-hypoxic-ischemic-eeg-of-the-pre-term-fetal-sheep-with-a-wavelet-type-ii-fuzzy-classifier
#4
Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth, Hamid Abbasi, Laura Bennet, Alistair J Gunn, Charles P Unsworth, Charles P Unsworth, Laura Bennet, Hamid Abbasi, Alistair J Gunn
Perinatal hypoxic-ischemic encephalopathy (HIE) around the time of birth due to lack of oxygen can lead to debilitating neurological conditions such as epilepsy and cerebral palsy. Experimental data have shown that brain injury evolves over time, but during the first 6-8 hours after HIE the brain has recovered oxidative metabolism in a latent phase, and brain injury is reversible. Treatments such as therapeutic cerebral hypothermia (brain cooling) are effective when started during the latent phase, and continued for several days...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225291/-a-contribution-to-the-differential-diagnostics-of-sclerosing-cholangitides
#5
Martin Blaho, Petr Dítě, Martina Bojková, Martin Rydlo, Tomáš Kupka, Pavel Svoboda, Pavel Klvaňa, Arnošt Martínek
Sclerosing cholangitides represent a group of chronic biliary obstructive diseases which include primary sclerosing cholangitis (PSC), IgG4 associated sclerosing cholangitis (IgG4-SC) and secondary sclerosing cholangitis (SSC). The manifestations of the diseases are similar, but their asymptomatic course is also frequent. IgG4-SC belongs to the group of IgG4 associated diseases and it is the most frequently related to type 1 autoimmune pancreatitis. Diagnosing of IgG4-SC is based on typical histopathological images, shape changes revealed by diagnostic imaging, serological tests, concurrent impairment of other organs and response to therapy, where IgG4-SC responds well to treatment with corticoids, whereas the only possibility for the remaining units is endoscopic intervention or liver transplantation...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28224318/chemical-angioplasty-with-spasmolytics-for-vasospasm-after-subarachnoid-hemorrhage
#6
Aleš Hejčl, Filip Cihlář, Vojtěch Smolka, Petr Vachata, Robert Bartoš, Jan Procházka, Jiří Cihlář, Martin Sameš
BACKGROUND: Clinically symptomatic vasospasm leading to delayed ischemic neurological deficits occurs in up to 30% of patients with subarachnoid hemorrhage (SAH). Vasospasm can result in a serious decline in clinical conditions of patients with SAH, yet the algorithm for vasospasm treatment and prevention remains unclear. Intra-arterial administration of vasodilators is one of the modalities used for vasospasm therapy. METHODS: Over the last 7 years, we have treated 27 female and 7 male patients with vasospasm using intra-arterial administration of either nimodipine or milrinone; all had suffered aneurysm rupture...
February 21, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28224092/language-and-cognitive-outcome-for-high-risk-neonates-at-the-age-of-2-3-years-experience-from-an-arab-country
#7
Tamer Abou-Elsaad, Hesham Abdel-Hady, Hemmat Baz, Doaa ElShabrawi
AIM: To investigate the effect of different neonatal risk factors on different language parameters as well as cognitive abilities among Arabic speaking Egyptian children at the age of two to three years of life and to find out which risk factor(s) had the greatest impact on language and cognitive abilities. METHODS: This retrospective cohort study was conducted on 103 children with age range of 2-3 years (median age 31 mo). They were 62 males and 41 females who were exposed to different high-risk factors in the perinatal period, with exclusion of metabolic disorders, sepsis/meningitis, congenital anomalies and chromosomal aberrations...
February 8, 2017: World Journal of Clinical Pediatrics
https://www.readbyqxmd.com/read/28223156/electrophysiological-properties-of-computational-human-ventricular-cell-action-potential-models-under-acute-ischemic-conditions
#8
REVIEW
Sara Dutta, Ana Mincholé, T Alexander Quinn, Blanca Rodriguez
Acute myocardial ischemia is one of the main causes of sudden cardiac death. The mechanisms have been investigated primarily in experimental and computational studies using different animal species, but human studies remain scarce. In this study, we assess the ability of four human ventricular action potential models (Tentusscher et al., 2006; Grandi et al., 2010; Carro et al., 2011; O'Hara et al., 2011) to simulate key electrophysiological consequences of acute myocardial ischemia in single cell and tissue simulations...
February 18, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28223135/cell-physiology-regulation-by-hypoxia-inducible-factor-1-targeting-oxygen-related-nanomachineries-of-hypoxic-cells
#9
REVIEW
Morteza Eskandani, Somayeh Vandghanooni, Jaleh Barar, Hossein Nazemiyeh, Yadollah Omidi
Any dysfunctionality in maintaining the oxygen homeostasis by mammalian cells may elicit hypoxia/anoxia, which results in inescapable oxidative stress and possible subsequent detrimental impacts on certain cells/tissues with high demands to oxygen molecules. The ischemic damage in turn can trigger initiation of a number of diseases including organs ischemia, metabolic disorders, inflammatory diseases, different types of malignancies, and alteration in wound healing process. Thus, full comprehension of molecular mechanism(s) and cellular physiology of the oxygen homeostasis is the cornerstone of the mammalian cells metabolism, energetic pathways and health and disease conditions...
February 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28222226/arctic-ground-squirrel-hippocampus-tolerates-oxygen-glucose-deprivation-independent-of-hibernation-season-even-when-not-hibernating-and-after-atp-depletion-acidosis-and-glutamate-efflux
#10
Saurav Bhowmick, Jeanette T Moore, Daniel L Kirschner, Kelly L Drew
Cerebral ischemia/reperfusion (I/R) triggers a cascade of uncontrolled cellular processes that perturb cell homeostasis. The arctic ground squirrel (AGS), a seasonal hibernator resists brain damage following cerebral I/R caused by cardiac arrest and resuscitation. However, it remains unclear if tolerance to I/R injury in AGS depends on the hibernation season. Moreover, it is also not clear if events such as depletion of ATP, acidosis and glutamate efflux that are associated with anoxic depolarization are attenuated in AGS...
February 21, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28219791/full-title-bone-marrow-mesenchymal-stem-cells-conditioned-medium-enhances-vascular-remodeling-after-stroke-in-type-2-diabetic-rats
#11
Jie Xiang, Jinxia Hu, Tong Shen, Bin Liu, Fang Hua, Kun Zan, Jie Zu, Guiyun Cui, Xinchun Ye
Our previous studies have found that stem cells conditioned medium (CM) facilitated functional recovery after stroke in non-diabetics. However, whether bone marrow stromal cells conditioned medium (BMSCs-CM) treatment after stroke in type 2 diabetic (T2DM) rats improve functional outcomes remains unclear. T2DM rats were induced and subjected to stroke then treated with or without BMSCs-CM. Functional outcomes and blood-brain barrier (BBB) leakage were performed, the expression of Angiopoietin (Ang) 1 and tyrosine kinase (Tie) 2 were also assessed...
February 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28218210/optimal-timing-of-surgical-revascularization-for-myocardial-infarction-and-left-ventricular-dysfunction
#12
Rong Wang, Nan Cheng, Cang-Song Xiao, Yang Wu, Xiao-Yong Sai, Zhi-Yun Gong, Yao Wang, Chang-Qing Gao
BACKGROUND: The optimal timing of surgical revascularization for patients presenting with ST-segment elevation myocardial infarction (STEMI) and impaired left ventricular function is not well established. This study aimed to examine the timing of surgical revascularization after STEMI in patients with ischemic heart disease and left ventricular dysfunction (LVD) by comparing early and late results. METHODS: From January 2003 to December 2013, there were 2276 patients undergoing isolated coronary artery bypass grafting (CABG) in our institution...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28217986/the-effects-of-remote-ischemic-conditioning-in-patients-with-st-segment-elevation-myocardial-infarction-treated-with-primary-percutaneous-coronary-intervention-a-meta-analysis
#13
Jing Gao, Qingjie Chen, Fen Liu, Qian Zhao, Bangdang Chen, Yun Zhou, Qiang Zhao, Yitong Ma, Yining Yang
INTRODUCTION: Timely and successful reperfusion is effective at improving outcome in patients presenting with STEMI. However, abrupt restoration of blood flow may cause detrimental myocardial repercussion injury. Remote ischemic conditioning (RIC) is a potent activator of innate protection against ischemia-reperfusion injury. This study assessed remote ischemic conditioning in patients presenting with STEMI treated with primary PCI. EVIDENCE ACQUISITION: Relevant studies were identified through electronic literature search from PubMed, Medline, EMBASE, CNKI, WANFANG, and VIP...
February 17, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28217579/urinary-catheterization-from-benefits-to-hapless-situations-and-a-call-for-preventive-measures
#14
REVIEW
Gunjan Garg, Naveen Chawla, Atul Gogia, Atul Kakar
Catheter-associated complications are common, expensive, and often preventable by reducing unnecessary catheter usage. These complications range from most common nosocomial infection to uncommon conditions such as urethral diverticula and ischemic necrosis of the penis. Often, removal of a single known essential cause may be sufficient to prevent a disease. This review raises issues associated with urinary catheterization and emphasizes on the need of preventive measures a physician should take to reduce disappointing situations...
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28217295/anti-oxidative-aspect-of-inhaled-anesthetic-gases-against-acute-brain-injury
#15
REVIEW
Tuo Yang, Yang Sun, Feng Zhang
Acute brain injury is a critical and emergent condition in clinical settings, which needs to be addressed urgently. Commonly acute brain injuries include traumatic brain injury, ischemic and hemorrhagic strokes. Oxidative stress is a key contributor to the subsequent injuries and impedes the reparative process after acute brain injury; therefore, facilitating an anti-oxidative approach is important in the care of those diseases. Readiness to deliver and permeability to blood brain barrier are essential for the use of this purpose...
October 2016: Medical Gas Research
https://www.readbyqxmd.com/read/28216548/hyperglycemia-aggravates-decreases-of-pea-15-and-its-two-phosphorylated-forms-in-cerebral-ischemia
#16
Jin-Hee Sung, Phil-Ok Koh
Diabetes is a metabolic health disorder and an important risk factor for stroke. Phosphoprotein enriched in astrocytes 15 (PEA-15) is a multifunctional protein modulating cell proliferation, survival, apoptosis and glucose metabolism. This study investigated whether diabetes modulates the expression of PEA-15 and two phosphorylated forms (Ser 104 and Ser 116) in middle cerebral artery occlusion (MCAO)-induced brain injury. Male Sprague-Dawley rats were administrated with streptozotocin (40 mg/kg) and were underwent right middle cerebral artery occlusion (MCAO) 4 weeks after streptozotocin injection...
February 17, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28216514/diallyl-trisulfide-augments-ischemia-induced-angiogenesis-via-an-endothelial-nitric-oxide-synthase-dependent-mechanism
#17
Ryo Hayashida, Kazuhisa Kondo, Sumio Morita, Kazumasa Unno, Satoshi Shintani, Yuuki Shimizu, John W Calvert, Rei Shibata, Toyoaki Murohara
BACKGROUND: Hydrogen sulfide (H2S) exerts beneficial actions against the development of cardiovascular disease. Diallyl trisulfide (DATS) is an organic polysulfide found in garlic oil that liberates H2S under physiological conditions. This study investigated whether DATS modulates endothelial cell function, as well as revascularization processes in a mouse model of hind-limb ischemia.Methods and Results:Wild-type (WT), endothelial nitric oxide synthase-deficient (eNOS-KO) and Akt1-heterogenic deficient (Akt-Het) mice were subjected to unilateral hindlimb ischemia (HLI)...
February 17, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28216347/systemic-application-of-carbon-monoxide-releasing-molecule-3-protects-skeletal-muscle-from-ischemia-reperfusion-injury
#18
Aurelia Bihari, Gediminas Cepinskas, Thomas L Forbes, Richard F Potter, Abdel-Rahman Lawendy
OBJECTIVE: Ischemia-reperfusion (IR) is a limb- and life-threatening complication of acute limb ischemia and musculoskeletal trauma. Carbon monoxide-releasing molecules (CORMs) have recently been shown to protect microvascular perfusion and to reduce inflammation and injury in various ischemic animal models. The purpose of this study was to examine the effects of water-soluble CORM-3 on the extent of IR-induced muscle injury. METHODS: Wistar rats were randomized into three groups: sham (no ischemia), IR + CORM-3 (10 mg/kg intraperitoneally), and IR + inactive CORM-3 (iCORM-3; 10 mg/kg intraperitoneally)...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28210901/transplantation-of-lineage-negative-stem-cells-in-pterygopalatine-artery-ligation-induced-retinal-ischemia-reperfusion-injury-in-mice
#19
Gillipsie Minhas, Sudesh Prabhakar, Ryuichi Morishita, Munehisa Shimamura, Reema Bansal, Akshay Anand
Retinal ischemia is a condition associated with retinal degenerative diseases such as glaucoma, diabetic retinopathy, and other optic neuropathies, leading to visual impairment and blindness worldwide. Currently, there is no therapy available for ischemic retinopathies. Therefore, the aim of this study was to test a murine model of pterygopalatine artery ligation-induced retinal injury for transplantation of mouse bone marrow-derived lineage-negative (lin-ve) stem cells. The mouse external carotid artery and pterygopalatine artery were ligated for 3...
February 16, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28210876/effect-of-hyperhomocysteinemia-on-redox-balance-and-redox-defence-enzymes-in-ischemia-reperfusion-injury-and-or-after-ischemic-preconditioning-in-rats
#20
Martin Petráš, Anna Drgová, Mária Kovalská, Zuzana Tatarková, Barbara Tóthová, Oľga Križanová, Ján Lehotský
Increased level of homocysteine (hHcy) in plasma is an accompanying phenomenon of many diseases, including a brain stroke. This study determines whether hyperhomocysteinemia (which is a risk factor of brain ischemia) itself or in combination with ischemic preconditioning affects the ischemia-induced neurodegenerative changes, generation of reactive oxygen species (ROS), lipoperoxidation, protein oxidation, and activity of antioxidant enzymes in the rat brain cortex. The hHcy was induced by subcutaneous administration of homocysteine (0...
February 16, 2017: Cellular and Molecular Neurobiology
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