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https://www.readbyqxmd.com/read/28106161/cold-spells-and-ischaemic-sudden-cardiac-death-effect-modification-by-prior-diagnosis-of-ischaemic-heart-disease-and-cardioprotective-medication
#1
Niilo R I Ryti, Elina M S Mäkikyrö, Harri Antikainen, M Juhani Junttila, Eeva Hookana, Tiina M Ikäheimo, Marja-Leena Kortelainen, Heikki V Huikuri, Jouni J K Jaakkola
Sudden cardiac death (SCD) is the leading cause of death. The current paradigm in SCD requires the presence of an abnormal myocardial substrate and an internal or external transient factor that triggers cardiac arrest. Based on prior mechanistic evidence, we hypothesized that an unusually cold weather event (a cold spell) could act as an external factor triggering SCD. We tested potential effect modification of prior diagnoses and select pharmacological agents disrupting pathological pathways between cold exposure and death...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105895/prefrontal-cortex-dysfunction-in-hypoxic-ischaemic-encephalopathy-contributes-to-executive-function-impairments-in-rats-potential-contribution-for-attention-deficit-hyperactivity-disorder
#2
Patrícia Maidana Miguel, Bruna Ferrary Deniz, Iohanna Deckmann, Heloísa Deola Confortim, Ramiro Diaz, Daniela Pereira Laureano, Patrícia Pelufo Silveira, Lenir Orlandi Pereira
OBJECTIVES: The attention-deficit/hyperactivity disorder (ADHD) compromises the quality of life of individuals including adaptation to the social environment. ADHD aetiology includes perinatal conditions such as hypoxic-ischaemic events; preclinical studies have demonstrated attentional deficits and impulsive-hyperactive outcomes after neonatal hypoxic and/or ischaemic intervention, but data are missing to understand this relationship. Thus, the aim of this study was to evaluate executive function (EF) and impulsivity, and tissue integrity and dopaminergic function in the prefrontal cortex (PFC) of rats submitted to hypoxia-ischaemia (HI)...
January 20, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28098043/-the-effects-of-smoking-on-health-growth-of-knowledge-reveals-even-grimmer-picture
#3
J P Mackenbach, R A M Damhuis, J V Been
- In this article we give a short overview of new insights into the effects of smoking on health, both on smokers themselves and on those who are exposed to other people's tobacco smoke.- The number of diseases and conditions that are known to be caused by active smoking has now risen to over thirty.- The risk of premature death is not, as previously thought, twice as high in smokers as in non-smokers, but actually three times as high.- Passive smoking too has been shown to have a whole range of negative effects on health...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28089622/serum-procalcitonin-correlates-with-colonoscopy-findings-and-can-guide-therapeutic-decisions-in-postoperative-ischemic-colitis
#4
C Cossé, C Sabbagh, M Fumery, E Zogheib, F Mauvais, F Browet, L Rebibo, J M Regimbeau
BACKGROUND: Postoperative ischaemic colitis (POIC) is a life-threatening vascular gastrointestinal condition. Serum procalcitonin (PCT) levels be of value in the detection of necrosis. AIMS: To evaluate the correlation between serum PCT levels and the colonoscopic assessment of the severity of POIC. METHODS: Between January 2007 and November 2014, 150 patients with POIC and PCT data were included in the study. The main outcome measure was the correlation between serum PCT and the colonoscopy-based assessment of the severity of POIC (according to Favier's classification: stage 1/2 without multi-organ failure vs...
December 15, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28069702/remote-ischemic-conditioning-provides-humoural-cross-species-cardioprotection-through-glycine-receptor-activation
#5
Juan José Alburquerque-Béjar, Ignasi Barba, Laura Valls-Lacalle, Marisol Ruiz-Meana, Michela Pecoraro, Antonio Rodríguez-Sinovas, David García-Dorado
AIMS: Remote ischaemic conditioning (RIC) releases a humoural factor able to exert cross-species cardioprotection when plasma dialysate is applied to isolated hearts. However, the exact chemical nature of this factor is currently unknown. METHODS AND RESULTS: RIC (4 × 5min femoral occlusion/5min reperfusion) was applied to 10 male pigs, and blood was taken before and after the manoeuvre. Discriminant analysis of (1)H-NMR spectra (n = 10-12) obtained from plasma dialysates (12-14 kDa cut-off) allowed to demonstrate a different metabolic profile between control and postRIC samples, with lactate (2...
January 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28042893/the-experiences-of-myocardial-infarction-patients-readmitted-within-six-months-of-primary-percutaneous-coronary-intervention
#6
H Iles-Smith, C Deaton, M Campbell, C Mercer, L McGowan
AIM AND OBJECTIVES: This study explored the experiences of patients readmitted due to potential ischaemic heart disease (p-IHD) symptoms within 6 months of Primary Percutaneous Coronary Intervention (PPCI). BACKGROUND: Following myocardial infarction (MI) and PPCI, some patients experience p-IHD symptoms that may lead to readmission. Symptoms may be related to cardiac ischaemia, reduced psychological health or a comorbid condition. DESIGN: A qualitative study involving semi-structured, in-depth interviews conducted once, mean 196 (50 to 384) days following readmission (at least 6 months following original STEMI and PPCI)...
January 2, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28042670/the-genetic-basis-of-cerebral-palsy
#7
REVIEW
Michael C Fahey, Alastair H Maclennan, Doris Kretzschmar, Jozef Gecz, Michael C Kruer
Although prematurity and hypoxic-ischaemic injury are well-recognized contributors to the pathogenesis of cerebral palsy (CP), as many as one-third of children with CP may lack traditional risk factors. For many of these children, a genetic basis to their condition is suspected. Recent findings have implicated copy number variants and mutations in single genes in children with CP. Current studies are limited by relatively small patient numbers, the underlying genetic heterogeneity identified, and the paucity of validation studies that have been performed...
January 1, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28028069/remote-ischaemic-conditioning-reduces-infarct-size-in-animal-in-vivo-models-of-ischaemia-reperfusion-injury-a-systematic-review-and-meta-analysis
#8
Daniel I Bromage, Jack M J Pickard, Xavier Rossello, Oliver J Ziff, Niall Burke, Derek M Yellon, Sean M Davidson
AIMS: The potential of remote ischaemic conditioning (RIC) to ameliorate myocardial ischaemia-reperfusion injury (IRI) remains controversial. We aimed to analyse the pre-clinical evidence base to ascertain the overall effect and variability of RIC in animal in vivo models of myocardial IRI. Furthermore, we aimed to investigate the impact of different study protocols on the protective utility of RIC in animal models and identify gaps in our understanding of this promising therapeutic strategy...
October 23, 2016: Cardiovascular Research
https://www.readbyqxmd.com/read/28004056/fc-saxatilin-a-snake-venom-disintegrin-suppresses-hypoxia-induced-vascular-leakage-by-regulating-endothelial-occludin-expression
#9
Hyun-Jung Choi, Il Kwon, Na-Eun Kim, Jayoung Kim, Sunho An, Sungsoo Kang, Sung-Yu Hong, Hyo Suk Nam, Ji Hoe Heo
Vascular leakage due to compromised integrity of the endothelial barrier is closely associated with brain damage in several neurological disorders, including ischaemic stroke. Saxatilin, a snake venom disintegrin containing the Arg-Gly-Asp (RGD) motif, exerts thrombolytic and antiplatelet effects by interacting with multiple integrins on platelets. Integrin signalling is indispensable for regulation of endothelial permeability. Saxatilin may play a role in vascular leakage after ischaemia because it has high affinity for endothelial integrins...
December 22, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28003901/bilateral-anterior-ischaemic-optic-neuropathy-in-a-child-on-continuous-peritoneal-dialysis-case-report-and-literature-review
#10
Abdullah Al-Kaabi, Agha S Haider, Mohammed O Shafeeq, Mohammed A El-Naggari, Ibtisam El-Nour, Anuradha Ganesh
Non-arteritic anterior ischaemic optic neuropathy (NAION) is a serious complication of continuous peritoneal dialysis (CPD) which can lead to poor vision and blindness. We report a five-year-old girl who had undergone a bilateral nephrectomy at the age of one year and was on home CPD. She was referred to the Paediatric Ophthalmology Unit of Sultan Qaboos University Hospital, Muscat, Oman, in 2013 with acute bilateral vision loss, preceded by a three-day history of poor oral intake. At presentation, the patient had severe systemic hypotension...
November 2016: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28003833/combined-msc-and-glp-1-therapy-modulates-collagen-remodeling-and-apoptosis-following-myocardial-infarction
#11
Elizabeth J Wright, Nigel W Hodson, Michael J Sherratt, Moustapha Kassem, Andrew L Lewis, Christine Wallrapp, Nadim Malik, Cathy M Holt
Background. Mesenchymal stem cells (MSCs) and glucagon-like peptide-1 (GLP-1) are being tested as treatment strategies for myocardial infarction (MI); however, their mechanisms in the heart are not fully understood. Methods. We examined the effects of MSCs, either native, or engineered to secrete a GLP-1 fusion protein (MSCs ± GLP-1), on human cardiomyocyte apoptosis in vitro. The effect on cardiac remodeling when encapsulated in alginate beads (CellBeads-MSC and CellBeads-MSC + GLP-1) was also evaluated in a pig MI model, whereby pigs were treated with Empty Beads, CellBeads-MSC, or CellBeads-MSC + GLP-1 and sacrificed at one or four weeks following MI...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27990740/hypertensive-eye-disease-a-review
#12
REVIEW
Samantha Fraser-Bell, Richard Symes, Anagha Vaze
Hypertension is a risk factor for a number of vision-threatening eye conditions including retinal vascular occlusion, retinal macroaneurysm and non arteritic anterior ischaemic optic neuropathy. In addition, hypertension may exacerbate the vision-threatening effects of diabetic retinopathy and has been implicated in the pathogenesis of age-related macular degeneration. The effects of sustained hypertension are directly visible in the eye as hypertensive retinopathy and choroidopathy, reflecting a pathological process occurring throughout the body...
December 19, 2016: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/27943613/synergic-effects-of-vegf-a-and-sdf-1-on-the-angiogenic-properties-of-endothelial-progenitor-cells
#13
Gabriela Odent Grigorescu, Ana-Maria Rosca, Mihai Bogdan Preda, Raluca Tutuianu, Maya Simionescu, Alexandrina Burlacu
Here we investigated the impact of hypoxic environment on the angiogenic properties of early-outgrowth endothelial progenitor cells (EPCs), with particular focus on the role of secreted vascular endothelial growth factor-A (VEGF-A) and stromal derived factor-1 (SDF-1) in mediating these effects. We found that cultured EPCs secreted factors with paracrine effects on chemotaxis, migration, proliferation and tube formation of mature endothelial cells (ECs), and these properties were not affected by hypoxia. Depletion of VEGF-A did not change the ability of EPC-conditioned medium (CM) to promote EC migration and tube formation in vitro, suggesting that the pro-angiogenic paracrine effects of EPCs did not totally rely on the presence of VEGF-A...
December 12, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27943459/protective-roles-of-melatonin-in-central-nervous-system-diseases-by-regulation-of-neural-stem-cells
#14
REVIEW
Xin Yu, Zheng Li, Heyi Zheng, Jeffery Ho, Matthew T V Chan, William Ka Kei Wu
Neural stem cells (NSCs) are immature precursors of the central nervous system (CNS), with self-renewal and multipotential differentiation abilities. Their proliferation and differentiation are dynamically regulated by hormonal and local factors. Alteration in neurogenesis is associated with many neurological disorders. Increasing evidence suggests that modulation of NSCs can be a promising therapeutic approach for neural injury and neurodegenerative disorders. Melatonin, a pineal gland-derived hormone, regulates the neuroimmuno-endocrine axis and is functionally important to the circadian rhythm, tumour suppression and immunity...
December 12, 2016: Cell Proliferation
https://www.readbyqxmd.com/read/27940627/automatic-identification-of-type-2-diabetes-hypertension-ischaemic-heart-disease-heart-failure-and-their-levels-of-severity-from-italian-general-practitioners-electronic-medical-records-a-validation-study
#15
Rosa Gini, Martijn J Schuemie, Giampiero Mazzaglia, Francesco Lapi, Paolo Francesconi, Alessandro Pasqua, Elisa Bianchini, Carmelo Montalbano, Giuseppe Roberto, Valentina Barletta, Iacopo Cricelli, Claudio Cricelli, Giulia Dal Co, Mariadonata Bellentani, Miriam Sturkenboom, Niek Klazinga
OBJECTIVES: The Italian project MATRICE aimed to assess how well cases of type 2 diabetes (T2DM), hypertension, ischaemic heart disease (IHD) and heart failure (HF) and their levels of severity can be automatically extracted from the Health Search/CSD Longitudinal Patient Database (HSD). From the medical records of the general practitioners (GP) who volunteered to participate, cases were extracted by algorithms based on diagnosis codes, keywords, drug prescriptions and results of diagnostic tests...
December 9, 2016: BMJ Open
https://www.readbyqxmd.com/read/27935900/-thromboangiitis-obliterans-buerger-s-disease-state-of-the-art
#16
D D Zerbino, E A Zimba, N N Bagry
Thromboangiitis obliterans (Buerger's disease) is systemic vasculitis with predominant development of thrombotic occlusions of small-to-medium diameter arteries of distal portions of both upper and lower limbs. A distinctive feature of Buerger's disease from other vasculitides is the involvement of the venous bed into the pathological process in the form of migrating thrombophlebitis. The disease is encountered more often in young adult males, predominantly tobacco smokers. The clinical pattern is presented by symptoms of increasing insufficiency of blood supply of tissues of extremities...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/27935884/-use-of-the-multitask-device-while-performing-endarterectomy-from-iliac-arteries
#17
I P Mikhailov, G A Isaev, L S Kokov, I M Gol'dina
AIM: The study was aimed at assessing efficacy of using the "MultiTASK" device manufactured by the Le Maitre Company while performing extended endarterectomy from iliac arteries in patients presenting with multilevel atherosclerotic lesions of the arterial bed and chronic ischaemia of lower extremities. PATIENTS AND METHODS: We analysed the outcomes of surgical management of a total of 37 patients presenting with multilevel atherosclerotic lesions of the common and external iliac arteries and arteries below the inguinal ligament over the period from 2012 to 2015 at the Department of Emergency Vascular Surgery of the Scientific Research Institute of Emergency Ambulance Care named after N...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/27923204/case-report-of-the-surgical-management-of-small-bowel-and-colonic-ischaemia-associated-with-anorexia-nervosa-binge-purge-subtype
#18
Ann T Foran, Cillian Clancy, Tom F Gorey
INTRODUCTION: Anorexia Nervosa affects up to 1% of the population and can present with binge/purge episodes. A paucity of literature exists regarding small bowel and colonic ischaemia relating to this common condition. We report our own experience and management of a patient with anorexia nervosa binge/purge subtype with small bowel and colon ischaemia and review existing cases in the literature. PRESENTATION OF CASE: A 32year old female self-presented to the emergency department complaining of abdominal pain, abdominal distension and vomiting on a background history of binge/purge subtype eating disorder, following consumption of a large amount of carbohydrates...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27903562/validity-of-self-reported-myocardial-infarction-and-stroke-in-regions-with-sami-and-norwegian-populations-the-saminor-1-survey-and-the-cvdnor-project
#19
Bent-Martin Eliassen, Marita Melhus, Grethe S Tell, Kristin Benjaminsen Borch, Tonje Braaten, Ann Ragnhild Broderstad, Sidsel Graff-Iversen
OBJECTIVE: Updated knowledge on the validity of self-reported myocardial infarction (SMI) and self-reported stroke (SRS) is needed in Norway. Our objective was to compare questionnaire data and hospital discharge data from regions with Sami and Norwegian populations to assess the validity of these outcomes by ethnicity, sex, age and education. DESIGN: Validation study using cross-sectional questionnaire data and hospital discharge data from all Norwegian somatic hospitals...
November 30, 2016: BMJ Open
https://www.readbyqxmd.com/read/27899144/hypoxia-induced-responses-by-endothelial-colony-forming-cells-are-modulated-by-placental-growth-factor
#20
Michelle B Hookham, Imran H A Ali, Christina L O'Neill, Emer Hackett, Melanie H Lambe, Tina Schmidt, Reinhold J Medina, Sara Chamney, Bharathi Rao, Eibhlin McLoone, David Sweet, Alan W Stitt, Derek P Brazil
BACKGROUND: Endothelial colony-forming cells (ECFCs), also termed late outgrowth endothelial cells, are a well-defined circulating endothelial progenitor cell type with an established role in vascular repair. ECFCs have clear potential for cell therapy to treat ischaemic disease, although the precise mechanism(s) underlying their response to hypoxia remains ill-defined. METHODS: In this study, we isolated ECFCs from umbilical cord blood and cultured them on collagen...
November 29, 2016: Stem Cell Research & Therapy
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