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https://www.readbyqxmd.com/read/28645644/-antiplatelet-agents-and-transfusion
#1
P Gaussem, A-C Martin, T Belleville-Rolland, D Helley, C Bachelot-Loza, A Godier
Antiplatelet agents are at risk for bleeding complications, the management of which differs depending on the clinical situation and on the antiplatelet agent itself. Neutralization of antiplatelets is sometimes necessary, most often leading to platelet transfusion, although the benefit of this strategy is poorly documented. In addition, if platelet transfusion corrects the platelet inhibition induced by aspirin and probably by clopidogrel and prasugrel, it does not neutralize ticagrelor, as a consequence of its pharmacological properties...
June 20, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28641383/neuroprotection-in-stroke-the-importance-of-collaboration-and-reproducibility
#2
Ain A Neuhaus, Yvonne Couch, Gina Hadley, Alastair M Buchan
Acute ischaemic stroke accounts for 6.5 million deaths per year, and by 2030 will result in the annual loss of over 200 million disability-adjusted life years globally. There have been considerable recent advances in the gold standard of acute ischaemic stroke treatment, some aspects of which-aspirin to prevent recurrence, and treating patients in specialized stroke wards-are widely applicable. Recanalization of the occluded artery through thrombolysis and/or endovascular thrombectomy is restricted to only a small proportion of patients, due to contra-indications and the costs associated with establishing the infrastructure to deliver these treatments...
June 20, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28639101/prevention-and-treatment-of-cancer-targeting-chronic-inflammation-research-progress-potential-agents-clinical-studies-and-mechanisms
#3
REVIEW
Yong Zhang, Weijia Kong, Jiandong Jiang
Numerous experimental and clinical studies indicate that chronic inflammation is closely related to the initiation, progression, and spread of cancer, in which proinflammatory cytokines, such as interleukin (IL)-6, IL-1β, and tumor necrosis factor-α (TNF-α), and transcription factors, such as nuclear factor-κB (NF-κB), and signal transducer and activator of transcription 3 (STAT3), play pivotal roles. Stimulated by proinflammatory cytokines, NF-κB and STAT3 can modulate the expression of target genes, most of which are oncogenic ones, and promote the survival, proliferation, invasion, and metastasis of cancer cells...
May 29, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28637591/salicylate-induced-frequency-map-reorganization-in-four-subfields-of-the-mouse-auditory-cortex
#4
Yasutaka Yanagawa, Kengo Takasu, Hisayuki Osanai, Takashi Tateno
Salicylate is the active ingredient in aspirin, and in high-doses it is used as an experimental tool to induce transient hearing loss, tinnitus, and hyperacusis. These salicylate-induced perceptual disturbances are associated with tonotopic-map reorganization and neural activity modulation, and such neural correlates have been examined in the central auditory pathway, including the auditory cortex (AC). Although previous studies have reported that salicylate induces increases in noise-burst-evoked neural responses and reorganization of tonotopic maps in the primary AC, little is known about the effects of salicylate on other frequency-organized AC subfields such as the anterior auditory, secondary auditory, and dorsomedial fields...
June 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/28620089/development-and-validation-of-risk-prediction-equations-to-estimate-survival-in-patients-with-colorectal-cancer-cohort-study
#5
Julia Hippisley-Cox, Carol Coupland
Objective To develop and externally validate risk prediction equations to estimate absolute and conditional survival in patients with colorectal cancer. Design Cohort study.Setting General practices in England providing data for the QResearch database linked to the national cancer registry.Participants 44 145 patients aged 15-99 with colorectal cancer from 947 practices to derive the equations. The equations were validated in 15 214 patients with colorectal cancer from 305 different QResearch practices and 437 821 patients with colorectal cancer from the national cancer registry...
June 15, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28600460/standard-operating-procedures-improve-acute-neurologic-care-in-a-sub-saharan-african-setting
#6
Lamin E S Jaiteh, Stefan A Helwig, Abubacarr Jagne, Andreas Ragoschke-Schumm, Catherine Sarr, Silke Walter, Martin Lesmeister, Matthias Manitz, Sebastian Blaß, Sarah Weis, Verena Schlund, Neneh Bah, Jil Kauffmann, Mathias Fousse, Sabina Kangankan, Asmell Ramos Cabrera, Kai Kronfeld, Christian Ruckes, Yang Liu, Ousman Nyan, Klaus Fassbender
OBJECTIVE: Quality of neurologic emergency management in an under-resourced country may be improved by standard operating procedures (SOPs). METHODS: Neurologic SOPs were implemented in a large urban (Banjul) and a small rural (Brikama) hospital in the Gambia. As quality indicators of neurologic emergency management, performance of key procedures was assessed at baseline and in the first and second implementation years. RESULTS: At Banjul, 100 patients of the first-year intervention group exhibited higher rates of general procedures of emergency management than 105 control patients, such as neurologic examination (99...
June 9, 2017: Neurology
https://www.readbyqxmd.com/read/28600334/how-i-utilize-laboratory-monitoring-of-antiplatelet-therapies
#7
Alan D Michelson, Deepak L Bhatt
Antiplatelet therapy is of proven benefit in coronary artery disease and a number of other clinical settings. This article briefly reviews platelet function, molecular targets of antiplatelet agents and clinical indications for antiplatelet therapy before focusing on a frequent question to hematologists about the two most commonly used antiplatelet therapies: Could the patient be aspirin "resistant" or clopidogrel "resistant"? If so, should results of a platelet function test be used to guide the dose or type of antiplatelet therapy? Whether or not such guided therapy is of clinical benefit to patients has been a source of controversy...
June 9, 2017: Blood
https://www.readbyqxmd.com/read/28590311/aspirin-challenge-and-desensitization-how-when-and-why
#8
Gabriele Cortellini, Cristiano Caruso, Antonino Romano
PURPOSE OF REVIEW: To investigate the current approach to aspirin challenge (drug provocation) and/or desensitization in patients with histories of hypersensitivity reactions to it, particularly in those with cardiovascular diseases. RECENT FINDINGS: The literature indicates that patients with coronary artery disease (CAD), including those with an acute coronary syndrome, may safely undergo low-dose aspirin challenge and/or desensitization. Recently, flowcharts regarding challenge/desensitization procedures with aspirin in patients with CAD and histories of aspirin hypersensitivity reactions have become available...
June 5, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28579807/effects-of-chemopreventive-agents-on-the-incidence-of-recurrent-colorectal-adenomas-a-systematic-review-with-network-meta-analysis-of-randomized-controlled-trials
#9
Sajesh K Veettil, Nattawat Teerawattanapong, Siew Mooi Ching, Kean Ghee Lim, Surasak Saokaew, Pochamana Phisalprapa, Nathorn Chaiyakunapruk
BACKGROUND: Protective effects of several chemopreventive agents (CPAs) against colorectal adenomas have been well documented in randomized controlled trials (RCTs); however, there is uncertainty regarding which agents are the most effective. METHODS: We searched for RCTs published up until September 2016. Retrieved trials were evaluated using risk of bias. We performed both pairwise analysis and network meta-analysis (NMA) of RCTs to compare the effects of CPAs on the recurrence of colorectal adenomas (primary outcome)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28576397/the-contribution-of-clinical-and-pathological-predisposing-factors-to-severe-gastro-duodenal-lesions-in-patients-with-long-term-low-dose-aspirin-and-proton-pump-inhibitor-therapy
#10
Anca Negovan, Mihaela Iancu, Valeriu Moldovan, Kinga Sàrkàny, Simona Bataga, Simona Mocan, Ioan Țilea, Claudia Banescu
BACKGROUND: Preventive strategies developed to avoid the complications of antiplatelet therapies recommend the evaluation of risk factors for gastrointestinal events and indicated gastroprotective strategies. AIM: We aimed to assess the impact of predisposing factors - histological findings, concomitant drug consumption, comorbidities, symptoms, social habits, Helicobacter pylori infection - on severe gastro-duodenal lesions in patients with low-dose aspirin and concomitant protective therapy with proton pump inhibitors (PPI)...
May 30, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28573479/aspirin-and-the-primary-prevention-of-cardiovascular-diseases-an-approach-based-on-individualized-integrated-estimation-of-risk
#11
Massimo Volpe, Allegra Battistoni, Giovanna Gallo, Roberta Coluccia, Raffaele De Caterina
While the use of aspirin in the secondary prevention of cardiovascular (CVD) is well established, aspirin in primary prevention is not systematically recommended because the absolute CV event reduction is similar to the absolute excess in major bleedings. Recently, emerging evidence suggests the possibility that the assumption of aspirin, may also be effective in the prevention of cancer. By adding to the CV prevention benefits the potential beneficial effect of aspirin in reducing the incidence of mortality and cancer could tip the balance between risks and benefits of aspirin therapy in the primary prevention in favour of the latter and broaden the indication for treatment with in populations at average risk...
June 1, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28560760/oral-antiplatelet-therapy-impact-for-transfusion-medicine
#12
REVIEW
T Gremmel, S Panzer
Patients on antiplatelet therapy, be it aspirin only, or aspirin in combination with oral adenosine diphosphate (ADP) receptor inhibitors like clopidogrel, prasugrel and ticagrelor, or the protease-activated receptor-1 inhibitor vorapaxar, may develop bleeding or need transient reversal of platelet blockade for acute interventions. In this review, we summarize reports on patients with antiplatelet therapy receiving platelet concentrates due to bleeding, and in vitro experiments estimating the feasibility to restore platelet function by spiking blood from healthy individuals or patients on antiplatelet treatment with noninhibited platelets...
May 30, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28539172/influence-of-aspirin-and-non-aspirin-nsaid-use-on-ovarian-and-endometrial-cancer-summary-of-epidemiologic-evidence-of-cancer-risk-and-prognosis
#13
REVIEW
F Verdoodt, S K Kjaer, S Friis
Increasing evidence supports a role for aspirin use in reducing the incidence and mortality of several cancer types. This has spurred a new wave of interest in this widely used drug. In this review, we present and evaluate the epidemiologic evidence of the association between the use of aspirin and other non-steroidal anti-inflammatory drugs (NSAIDs) and the incidence and prognosis of ovarian and endometrial cancer. The evidence of a preventive effect of NSAID use on risk of ovarian or endometrial cancer is based primarily on results from observational studies and, consequently, is only suggestive...
June 2017: Maturitas
https://www.readbyqxmd.com/read/28537433/aspirin-mediated-acetylation-protects-against-multiple-neurodegenerative-pathologies-by-impeding-protein-aggregation
#14
Srinivas Ayyadevara, Meenakshisundaram Balasubramaniam, Ramani Alla, J L Mehta, Robert J Shmookler Reis
AIMS: Many progressive neurological disorders, including Alzheimer's, Huntington's, and Parkinson's diseases, are characterized by accumulation of insoluble protein aggregates. In prospective trials, the cyclooxygenase inhibitor aspirin (acetylsalicylic acid) reduced the risk of Alzheimer's and Parkinson's diseases, as well as cardiovascular events and many late-onset cancers. In view of previous evidence that inflammation promotes protein hyperphosphorylation and aggregation in neurodegenerative diseases, we asked whether aspirin's known ability to block phosphorylation may be secondary to its acetylation of protein targets...
May 24, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28526350/designing-novel-bioconjugates-of-hydroxyethyl-cellulose-and-salicylates-for-potential-pharmaceutical-and-pharmacological-applications
#15
Khawar Abbas, Muhammad Amin, Muhammad Ajaz Hussain, Muhammad Sher, Syed Nasir Abbas Bukhari, Ibrahim Jantan, Kevin J Edgar
This deals with fabrication of macromolecular prodrugs (MPDs) of salicylic acid (SA) and aspirin (ASP) based on a hydrophilic cellulose ether, hydroxyethyl cellulose (HEC). Degrees of substitution (DS) of SA and ASP per HEC repeating unit (HEC-RU) were achieved ranging from 0.60 to 2.18 and 0.53 to1.50, respectively. The amphiphilic HEC-SA conjugate 2 assembled into nanowire-like structures, while HEC-ASP conjugate 6 formed nanoparticles (diameter 300-00nm) at a water/DMSO interface. After oral administration in rabbit models, conjugates 2 and 6 showed plasma half-life of 6...
May 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28525374/the-effect-of-rapamycin-nvp-bez235-aspirin-and-metformin-on-pi3k-akt-mtor-signaling-pathway-of-pik3ca-related-overgrowth-spectrum-pros
#16
Yasuyo Suzuki, Yasushi Enokido, Kenichiro Yamada, Mie Inaba, Kumiko Kuwata, Naoki Hanada, Tsuyoshi Morishita, Seiji Mizuno, Nobuaki Wakamatsu
The phosphatidylinositol 3-kinase (PI3K)/AKT/mTOR signaling pathway is critical for cellular growth and metabolism. Recently, mosaic or segmental overgrowth, a clinical condition caused by heterozygous somatic activating mutations in PIK3CA, was established as PIK3CA-related overgrowth spectrum (PROS). In this study, we report a Japanese female diagnosed with PROS, who presented with hyperplasia of the lower extremities, macrodactyly, multiple lipomatosis, and sparse hair. Sequencing and mutant allele frequency analysis of PIK3CA from affected tissues revealed that the patient had a heterozygous mosaic mutation (c...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28520220/endothelial-damage-effects-of-circulating-microparticles-from-patients-with-stable-angina-is-reduced-by-aspirin-though-erk-p38-mapks-pathways
#17
Cheng Gong, Xue-Feng Shan, Xu-Lang Wang, Wei-Wei Dong, Zhe Li, D Xin-Hong Liu, Wei Zhang, Kun Xing, Feng-Jun Chang
INTRODUCTION: Platelet activation participate in the development of both coronary artery disease (CAD) and circulating microparticles (MPs). As a commonly used medicine for coronary heart disease, whether aspirin affects the function of MPs remains unclear. AIMS: This study was designed to test MPs from healthy subjects, stable angina (SA) patients before and after aspirin administration were obtained. MPs origins were tested by flow cytometry. Rat thoracic aortas were incubated with MPs (with or without aspirin) to determine the effects of MPs on expression of ERK1/2, JNKs and p38 MAPK...
May 18, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28511718/simultaneous-development-of-kawasaki-disease-following-acute-human-adenovirus-infection-in-monozygotic-twins-a-case-report
#18
Sayaka Fukuda, Shuichi Ito, Maya Fujiwara, Jun Abe, Nozomu Hanaoka, Tsuguto Fujimoto, Hiroshi Katsumori
BACKGROUND: The etiology of Kawasaki disease (KD) remains unknown. However, many studies have suggested that specific genetic factors and/or some infectious agents underlie the onset of KD. Previous studies have suggested that human adenovirus (HAdV) is one of the triggering pathogens of KD. Here, we report monozygotic twin boys who sequentially developed KD in conjunction with acute HAdV type 3 (HAdV-3) infection. CASE PRESENTATION: The patients were four-year-old monozygotic twin boys...
May 16, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28504994/preoperative-low-dose-aspirin-exposure-and-outcomes-after-emergency-neurosurgery-for-traumatic-intracranial-hemorrhage-in-elderly-patients
#19
Alex T Lee, Arni Gagnidze, Sharon R Pan, Pimwan Sookplung, Bala Nair, Shu-Fang Newman, Alon Ben-Ari, Ahmed Zaky, Kevin Cain, Monica S Vavilala, Irene Rozet
BACKGROUND: Antiplatelet medications are usually discontinued before elective neurosurgery, but this is not an option for emergent neurosurgery. We performed a retrospective cohort study to examine whether preoperative aspirin use was associated with worse outcomes after emergency neurosurgery in elderly patients. METHODS: We analyzed all cases of emergency neurosurgical procedures for traumatic intracranial hemorrhage from 2008 to 2012 at a level 1 trauma center...
May 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28503981/platelet-reactivity-influences-clot-structure-as-assessed-by-fractal-analysis-of-viscoelastic-properties
#20
Rebecca B Knowles, Matthew J Lawrence, Plinio M Ferreira, Melissa A Hayman, Lindsay A D'Silva, Sophie N Stanford, Ahmed Sabra, Arthur T Tucker, Karl M Hawkins, Phylip R Williams, Timothy D Warner, Phillip A Evans
Despite the interwoven nature of platelet activation and the coagulation system in thrombosis, few studies relate both analysis of protein and cellular parts of coagulation in the same population. In the present study, we use matched ex vivo samples to determine the influences of standard antiplatelet therapies on platelet function and use advanced rheological analyses to assess clot formation. Healthy volunteers were recruited following fully informed consent then treated for 7 days with single antiplatelet therapy of aspirin (75 mg) or prasugrel (10 mg) or with dual antiplatelet therapy (DAPT) using aspirin (75 mg) plus prasugrel (10 mg) or aspirin (75 mg) plus ticagrelor (90 mg)...
May 15, 2017: Platelets
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