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https://www.readbyqxmd.com/read/28444843/evaluation-of-two-automated-cell-counters-for-the-analysis-of-hematopoietic-progenitor-cell-apheresis-products
#1
S Gils, B Cauwelier, H Devos, I Vanlaere, S Roggeman, J Emmerechts
INTRODUCTION: Routine hematology parameters in hematopoietic progenitor cell apheresis products (HPC-A) are usually determined using automated cell counters. These instruments, however, are designed to analyze whole blood samples, that differ considerably from HPC-A in blood cell composition. This study evaluates the performance of two automated cell counters for the analysis of HPC-A. METHODS: Routine hematology parameters [red blood cells (RBC), hematocrit (HCT), mean corpuscular volume (MCV), white blood cells (WBC), WBC differentiation, and platelets (PLT)] were determined on the Unicel DxH 800 instrument (Beckman Coulter) and the XN-350 instrument (Sysmex)...
April 26, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28442518/the-relationship-of-mean-platelet-volume-platelet-distribution-width-and-duodenal-ulcer-perforation
#2
Zhe Fan, Chengjun Zhuang
BACKGROUND: Duodenal ulcer perforation (DUP) is a severe acute abdominal disease. Mean platelet volume (MPV) and platelet distribution width (PDW) are two platelet parameters, participating in many inflammatory processes. This study aims to investigate the relation of MPV/PDW and DUP. METHODS: A total of 165 patients were studied retrospectively, including 21 females and 144 males. The study included two groups: 87 normal patients (control group) and 78 duodenal ulcer perforation patients (DUP group)...
March 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28441034/thrombus-formation-at-high-shear-rate
#3
Lauren D C Casa, David N Ku
The final common pathway in myocardial infarction and ischemic stroke is occlusion of blood flow from a thrombus forming under high shear rates in arteries. A high-shear thrombus forms rapidly and is distinct from the slow formation of coagulation that occurs in stagnant blood. Thrombosis at high shear rates depends primarily on the long protein von Willebrand factor (vWF) and platelets, with hemodynamics playing an important role in each stage of thrombus formation, including vWF binding, platelet adhesion, platelet activation, and rapid thrombus growth...
April 24, 2017: Annual Review of Biomedical Engineering
https://www.readbyqxmd.com/read/28439902/concentrated-lyophilized-plasma-used-for-reconstitution-of-whole-blood-leads-to-higher-coagulation-factor-activity-but-unchanged-thrombin-potential-compared-with-fresh-frozen-plasma
#4
Giacomo E Iapichino, Martin Ponschab, Janne Cadamuro, Susanne Süssner, Christian Gabriel, Benjamin Dieplinger, Margot Egger, Christoph J Schlimp, Soheyl Bahrami, Herbert Schöchl
BACKGROUND: During massive hemorrhage, it is recommended to transfuse red blood cells, platelet concentrate, and fresh-frozen plasma in a ratio close to 1:1:1. To avoid the thawing process of fresh frozen plasma, lyophilized plasma (LP) is increasingly used. Evidence is limited on the activity of coagulation factors in reconstituted blood using LP and concentrated LP versions. STUDY DESIGN AND METHODS: Whole blood from ten healthy volunteers was separated into red blood cell, fresh frozen plasma, and platelet concentrate units...
April 25, 2017: Transfusion
https://www.readbyqxmd.com/read/28436074/an-evaluation-of-the-mixed-pediatric-unit-for-blood-loss-replacement-in-pediatric-craniofacial-surgery
#5
Stefan Mogensen, Norbert Lubenow, Pelle Nilsson, Henrik Engquist, Folke Knutsson, Per Enblad, Daniel Nowinski, Peter Frykholm
BACKGROUND: Surgical correction for craniosynostosis is often associated with significant perioperative hemorrhage. We implemented a transfusion strategy with a strict protocol including transfusion triggers, frequent assessment of coagulation tests, and the use of a novel transfusion unit, the mixed pediatric unit. AIM: The aim of the study was to evaluate if the applied transfusion strategy could reduce total blood loss and number of blood donors. METHODS: Children <1 year old admitted for craniosynostosis surgery were included for the study...
April 23, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28433992/the-aachen-minipig-phenotype-genotype-hematological-and-biochemical-characterization-and-comparison-to-the-g%C3%A3-ttingen-minipig
#6
Kerstin Pawlowsky, Lisa Ernst, Julia Steitz, Thaddäus Stopinski, Babette Kögel, Anna Henger, Reinhart Kluge, René Tolba
BACKGROUND: The pig is one of the most frequently used large animal models for biomedical research, especially in the field of translational research and surgical models. While standard livestock breeds are used in short-term and acute studies, minipig breeds are the preferred breeds in long-term and chronic studies due to their limited growth and body weight. OBJECTIVE: In consideration of the 3R principle (refinement, reduction, replacement) and the increasing demand, the aim of this study was to generate a new, robust, non-specific-pathogen-free minipig breed, the Aachen minipig...
April 22, 2017: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/28433472/the-influence-of-platelet-rich-plasma-on-synovial-fluid-volumes-protein-concentrations-and-severity-of-pain-in-patients-with-knee-osteoarthritis
#7
Carl P C Chen, Chih-Hsiu Cheng, Chih-Chin Hsu, Hsin-Chin Lin, Yi-Rong Tsai, Jean-Lon Chen
Knee pain is commonly seen in orthopedic and rehabilitation outpatient clinical settings. Patients with knee osteoarthritis (OA) are often complicated with joint soreness, swelling, weakness, and pain. These complaints are often caused by the excessive amount of synovial fluid (SF) accumulated in the bursae around the knee joint. This study was aimed to evaluate the effectiveness of platelet rich plasma (PRP) in treating patients with minor to moderate knee osteoarthritis (OA) combined with supra-patellar bursitis using a proteomic approach and clinical evaluation tool...
April 19, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28430955/measurement-of-platelet-counts-and-volume-using-magnesium-sulfate-as-an-anticoagulant-%C3%A2-comparison-of-impedance-and-light-scatter-technology
#8
Steffen Mannuß, Peter Kohlschein, Katrin Dreißiger, Peter Schuff-Werner
Objectives: Magnesium sulfate (MgSO 4 ) was recently reported as an alternative in vitro anticoagulant in pseudo-thrombocytopenia. Its suitability as an anticoagulant for the determination of reliable platelet parameters is the subject of this study. Methods: Platelet count and mean platelet volume were measured in blood samples anticoagulated with EDTA and MgSO 4 and compared. The platelet parameters were determined by impedance (XE 5000 [Sysmex, Norderstedt, Germany]; DxH 800 [Beckman-Coulter, Krefeld, Germany]) and laser light-scatter technology (Advia 120 [Siemens Healthcare Diagnostics, Eschborn, Germany])...
November 1, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28429138/prothrombotic-state-in-asthma-is-related-to-increased-levels-of-inflammatory-cytokines-il-6-and-tnf%C3%AE-in-peripheral-blood
#9
Stanislawa Bazan-Socha, Lucyna Mastalerz, Agnieszka Cybulska, Lech Zareba, Romy Kremers, Michal Zabczyk, Grazyna Pulka, Teresa Iwaniec, Coenraad Hemker, Anetta Undas
Recently, we have reported that asthma is associated with enhanced plasma thrombin formation and impaired fibrinolysis. The mechanisms underlying the prothrombotic state in this disease are unknown. Our aim was to investigate whether prothrombotic alterations in asthmatics are associated with inflammation. We studied 164 adult, white, stable asthmatics and 72 controls matched for age, sex, body mass index (BMI), and smoking. Plasma tumor necrosis factor α (TNFα), interleukin (IL)-6, and serum periostin were evaluated using ELISAs, and their associations with thrombin generation, fibrinolytic capacity, expressed as clot lysis time (CLT), and platelet markers were later analyzed...
April 20, 2017: Inflammation
https://www.readbyqxmd.com/read/28428720/can-mean-platelet-volume-play-a-role-in-evaluating-the-severity-of-acute-pancreatitis
#10
Jing-Jing Lei, Li Zhou, Qi Liu, Can Xiong, Chun-Fang Xu
AIM: To investigate serum mean platelet volume (MPV) levels in acute pancreatitis (AP) patients and assess whether MPV effectively predicts the disease severity of AP. METHODS: We included 117 consecutive patients with AP as the AP group and 34 consecutive patients with colorectal polyps (before endoscopic treatment) as the control group. Complete blood counts, liver function, platelet indices (MPV), coagulation parameters, lactate dehydrogenase (LDH) and C-reactive protein (CRP) were measured on days 1, 2, 3 and 7 after admission...
April 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28428025/adipokines-as-atherothrombotic-risk-factors-in-obese-subjects-associations-with-haemostatic-markers-and-common-carotid-wall%C3%A2-thickness
#11
É Csongrádi, M Káplár, B Nagy, C A Koch, A Juhász, L Bajnok, Z Varga, I Seres, Z Karányi, M T Magyar, L Oláh, A Facskó, J Kappelmayer, G Paragh
BACKGROUND AND AIMS: Some crucial associations between obesity-related altered adipokine levels and the main factors of atherosclerotic, atherothrombotic processes are not fully known. We analysed the relationships of classic adipokines, namely leptin, resistin, adiponectin, tumour necrosis factor-alpha (TNF-α), interleukin 6 (IL-6) with the markers of platelet activation, including mean platelet volume (MPV), platelet surface/soluble P-selectin, platelet-derived microparticles (PMPs), the parameters of coagulation abnormalities and common carotid intima-media thickness (IMT) in obese patients with or without atherosclerotic comorbidities in comparison to age- and sex-matched controls...
March 8, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28427477/plasma-chitotriosidase-activity-versus-ccl18-level-for-assessing-type-i-gaucher-disease-severity-protocol-for-a-systematic-review-with-meta-analysis-of-individual-participant-data
#12
Tatiana Raskovalova, Patrick B Deegan, Ruby Yang, Elena Pavlova, Jérome Stirnemann, José Labarère, Ari Zimran, Pramod K Mistry, Marc Berger
BACKGROUND: Gaucher disease (GD) is an autosomal recessive lysosomal storage disorder caused by deficiency in acid beta-glucosidase. GD exhibits a wide clinical spectrum of disease severity with an unpredictable natural course. Plasma chitotriosidase activity and CC chemokine ligand 18 (CCL18) have been exchangeably used for monitoring GD activity and response to enzyme replacement therapy in conjunction with clinical assessment. Yet, a large-scale head-to-head comparison of these two biomarkers is currently lacking...
April 20, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28427217/mean-platelet-volume-platelet-distribution-width-and-carcinoembryonic-antigen-to-discriminate-gastric-cancer-from-gastric-ulcer
#13
Zhi-Yuan Yun, Na Li, Xin Zhang, Huan Zhang, Yue Bu, Yuxiang Sun, Tiemin Liu, Rui-Tao Wang, Kai-Jiang Yu
Activated platelets are involved in cancer development and progression. Mean platelet volume (MPV) and platelet distribution width (PDW) are early indexes of platelet activation. The objectives of this study were to investigate the ability of MPV, PDW and carcinoembryonic antigen (CEA) individually or in combination, to distinguish between gastric cancer and gastric ulcer. The study involved 194 patients with gastric cancer, 191 patients with gastric ulcer, and 185 control subjects. Subjects' characteristics and hematologic tests data at initial diagnosis were collected...
March 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425248/the-effect-of-transcatheter-aortic-valve-implantation-on-mean-platelet-volume
#14
Mehmet Burak Özen, Hüseyin Ayhan, Hacı Ahmet Kasapkara, Telat Keleş, Tahir Durmaz, Kemal Eşref Erdoğan, Bilge Duran Karaduman, Serdal Baştuğ, Cenk Sari, Abdullah Nabi Aslan, Engin Bozkurt
BACKGROUND/AIM: Transcatheter aortic valve implantation (TAVI) is an innovative approach to the treatment of aortic stenosis (AS) as an alternative to surgery in high-risk patients. Mean platelet volume (MPV) is considered an indicator of endothelial dysfunction, platelet function, and activation. In this study, we aimed to investigate MPV changes in patients undergoing TAVI. MATERIALS AND METHODS: This study included 100 patients diagnosed with symptomatic severe AS and treated with TAVI between July 2011 and August 2013...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424562/immunological-and-hematological-reference-intervals-among-hiv-seronegative-pregnant-women-in-northwest-ethiopia
#15
Meaza Genetu, Debasu Damtie, Meseret Workineh, Biniam Mathewos Tebeje, Bamlaku Enawgaw, Tekalign Deressa
BACKGROUND: Pregnancy is a state characterized by profound physiological hematological changes. However, hematological reference intervals being used in clinical practice in Ethiopia are derived from nonlocal general populations, despite the significant variations reported previously. The aim of this study was to determine the immunological and hematological reference intervals in healthy pregnancy among HIV-seronegative pregnant women in northwest Ethiopia. MATERIALS AND METHODS: A total of 200 healthy, HIV-seronegative pregnant women were enrolled from February 2015 to June 2015 in a cross-sectional study setting at Gondar University Hospital...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28422834/feasibility-and-safety-of-emergency-laparoscopic-partial-splenectomy-a-retrospective-analysis
#16
Hongyu Li, Yonggang Wei, Bing Peng, Bo Li, Fei Liu
The increased awareness of asplenia-related life-threatening complications has led to the development of parenchyma sparing splenic resections in past few years. The aim of this study is to retrospectively analyze the feasibility and safety of laparoscopic partial splenectomy (LPS) in selected emergency patients.From January 2013 to December 2015, there were 46 emergency patients, diagnosed with splenic rupture, admitted in our department. Selection criteria for LPS: (1) Preoperative CT scan revealed single pole rupture without spleen pedicle injury; (2) BP>90/60 mm Hg and heart rates <120 bpm; (3) No sigh of multiple organ injury...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422358/is-mean-platelet-volume-a-better-biomarker-in-pre-eclampsia
#17
Gustavo Vilchez, Moraima Lagos, Komal Kumar, Pedro Argoti
AIM: Platelet activation and destruction is a well recognized feature of pre-eclampsia, but the current literature is contradictory regarding the role of mean platelet volume (MPV) in the diagnosis of this condition. We investigated whether MPV, compared with other routine laboratory markers such as platelet count, is a more significant biomarker of pre-eclampsia, giving special attention to the intrapartum period. METHODS: Biochemical and hematological markers along pregnancy including MPV were compared retrospectively between pre-eclampsia and matched controls...
April 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28421831/a-novel-automated-slide-based-technology-for-visualization-counting-and-characterization-of-the-formed-elements-of-blood-a-proof-of-concept-study
#18
James W Winkelman, Milenko J Tanasijevic, David J Zahniser
CONTEXT: - A novel automated slide-based approach to the complete blood count and white blood cell differential count is introduced. OBJECTIVE: - To present proof of concept for an image-based approach to complete blood count, based on a new slide preparation technique. A preliminary data comparison with the current flow-based technology is shown. DESIGN: - A prototype instrument uses a proprietary method and technology to deposit a precise volume of undiluted peripheral whole blood in a monolayer onto a glass microscope slide so that every cell can be distinguished, counted, and imaged...
April 19, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28420171/pannexin-and-connexin-mediated-intercellular-communication-in-platelet-function
#19
REVIEW
Filippo Molica, Florian B Stierlin, Pierre Fontana, Brenda R Kwak
The three major blood cell types, i.e., platelets, erythrocytes and leukocytes, are all produced in the bone marrow. While red blood cells are the most numerous and white cells are the largest, platelets are small fragments and account for a minor part of blood volume. However, platelets display a crucial function by preventing bleeding. Upon vessel wall injury, platelets adhere to exposed extracellular matrix, become activated, and form a platelet plug preventing hemorrhagic events. However, when platelet activation is exacerbated, as in rupture of an atherosclerotic plaque, the same mechanism may lead to acute thrombosis causing major ischemic events such as myocardial infarction or stroke...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28416783/predictive-and-prognostic-role-of-mean-platelet-volume-in-patients-with-first-ever-acute-ischemic-stroke
#20
Ugur Lok, Umut Gulacti, Burcu Ekmekci, Taner Bulut, Murat Celik
OBJECTIVE: To investigate any possible effects of mean platelet volume (MPV) on short-term stroke prognosis and functional outcome in patients with first-ever acute ischemic stroke (FEAIS). METHODS: This retrospective cross-sectional study included 798 FEAIS patients admitted to the emergency department of a tertiary care hospital in Adiyaman, Turkey between January 2013 and June 2015. The data were evaluated according to whether alive or dead, MPV levels, modified Rankin scale (MRS) scores, National Institutes of Health Stroke Scale (NIHSS) scores...
April 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
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