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Platelet reach plasma

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https://www.readbyqxmd.com/read/29725383/therapeutic-effect-of-radiofrequency-ablation-on-children-with-supraventricular-tachycardia-and-the-risk-factors-for-postoperative-recurrence
#1
Chunli Li, Libo Jia, Zhenzhou Wang, Ling Niu, Xinjiang An
The present study investigated the therapeutic effect of radiofrequency ablation on children with supraventricular tachycardia (SVT), and explored the risk factors for postoperative recurrence. A total of 312 patients with pediatric SVT were selected in the Affiliated Children's Hospital of Xuzhou Medical University from April, 2011 to March, 2017. All the patients were subjected to radiofrequency ablation, and clinical data were retrospectively analyzed. Tilt table test was performed before and after treatment, and heart rate, systolic and diastolic blood pressure before and after treatment were compared...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29713693/clot-stability-as-a-determinant-of-effective-factor-viii-replacement-in-hemophilia-a
#2
L Leong, I N Chernysh, Y Xu, D Sim, C Nagaswami, Z de Lange, S Kosolapova, A Cuker, K Kauser, J W Weisel
Background: Factor VIII (FVIII) replacement is standard of care for patients with hemophilia A (HemA); however, patient response does not always correlate with FVIII levels. We hypothesize this may be in part due to the physical properties of clots and contributions of fibrin, platelets, and erythrocytes, which may be important for hemostasis. Objective: To understand how FVIII contributes to effective hemostasis in terms of clot structure and mechanical properties...
October 2017: Research and Practice in Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29684380/sustained-or-higher-levels-of-growth-factors-in-platelet-rich-plasma-during-7-day-storage
#3
Ying-Hao Wen, Wan-Ying Lin, Chi-Jui Lin, Yu-Chen Sun, Pi-Yueh Chang, Hsin-Yao Wang, Jang-Jih Lu, Wen-Lin Yeh, Tzong-Shi Chiueh
BACKGROUND: The effectiveness of platelet-rich plasma (PRP) for treating soft tissue injuries is still controversial. Most of PRPs were prepared simply by concentrating in volume and were injected right after preparation in physician offices. Neither platelet count nor growth factors were quantitated in advance. We prepared and stored leukocyte and platelet-rich plasma (L-PRP) by regular separation protocols for blood components in the blood bank. And we investigated the dynamic change of growth factors in the L-PRPs over the period of storage...
April 20, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29512167/ovine-leukocyte-microparticles-generated-by-the-centrimag-ventricular-assist-device-in-vitro
#4
Ina Laura Pieper, Gemma Radley, Abigail Christen, Sabrina Ali, Owen Bodger, Catherine A Thornton
Ventricular assist devices (VADs) are a life-saving form of mechanical circulatory support in heart failure patients. However, VADs have not yet reached their full potential due to the associated side effects (thrombosis, bleeding, infection) related to the activation and damage of blood cells and proteins caused by mechanical stress and foreign materials. Studies of the effects of VADs on leukocytes are limited, yet leukocyte activation and damage including microparticle generation can influence both thrombosis and infection rates...
March 7, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29445176/thermally-conductive-and-mechanically-robust-graphene-nanoplatelet-reinforced-uo-2-composite-nuclear-fuels
#5
Tiankai Yao, Guoqing Xin, Spencer Michael Scott, Bowen Gong, Jie Lian
Low thermal transport behavior along the radial direction of nuclear fuel pellets and pellet-cladding mechanical interaction significantly impact fuel performance and the safety of current nuclear energy systems. Here we report a new strategy of advanced fuel design in which highly thermally-conductive and mechanically-robust graphene nanoplatelets are incorporated into UO2 fuel matrix to improve fuel thermal-mechanical properties. The 2D geometry of the graphene nanoplatelets enables a unique lamellar structure upon fuel consolidation by spark plasma sintering...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29441013/%C3%AE-synuclein-aggregated-with-tau-and-%C3%AE-amyloid-in-human-platelets-from-healthy-subjects-correlation-with-physical-exercise
#6
Simona Daniele, Deborah Pietrobono, Jonathan Fusi, Annalisa Lo Gerfo, Eugenio Cerri, Lucia Chico, Caterina Iofrida, Lucia Petrozzi, Filippo Baldacci, Chiara Giacomelli, Fabio Galetta, Gabriele Siciliano, Ubaldo Bonuccelli, Maria L Trincavelli, Ferdinando Franzoni, Claudia Martini
The loss of protein homeostasis that has been associated with aging leads to altered levels and conformational instability of proteins, which tend to form toxic aggregates. In particular, brain aging presents characteristic patterns of misfolded oligomers, primarily constituted of β-amyloid (Aβ), tau, and α-synuclein (α-syn), which can accumulate in neuronal membranes or extracellular compartments. Such aging-related proteins can also reach peripheral compartments, thus suggesting the possibility to monitor their accumulation in more accessible fluids...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29433485/safety-and-efficacy-of-platelet-rich-plasma-in-treatment-of-carpal-tunnel-syndrome-a-randomized-controlled-trial
#7
Seyed Ahmad Raeissadat, Afshin Karimzadeh, Masoud Hashemi, Leila Bagherzadeh
BACKGROUND: Carpal tunnel syndrome is the most common peripheral entrapment neuropathy, for which conservative treatments are the first measures taken. However, these measures are not usually sufficient. Recently major attention has been drawn to platelet-rich plasma for its possible effects on axon regeneration and neurological recovery. Although few studies have evaluated the effects of this treatment in carpal tunnel syndrome, further investigation is required to reach concrete conclusion...
February 13, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29415616/platelet-rich-plasma-for-the-spinal-fusion
#8
Moon Soo Park, Seong-Hwan Moon, Tae-Hwan Kim, Jae Keun Oh, Won Yong Yoon, Ho Guen Chang
There has been a wide interest in using platelet-rich plasma (PRP) as a therapeutic agent to enhance spinal fusion. There are two review articles based only on clinical studies regarding the effect of PRP on spinal fusion. However, with regard to both animal model studies and clinical studies, there is no review studies regarding its effect on spinal fusion and no review studies focusing on the platelet count and the concentration of the growth factor in the PRP. The purpose is to review the literatures about the effect of PRP on spinal fusion according to the animal model studies and clinical studies, focusing on the effect of the platelet count and the concentration of the growth factor in the PRP...
January 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29412186/cyclic-rgd-functionalized-liposomes-encapsulating-urokinase-for-thrombolysis
#9
Nengpan Zhang, Chunlin Li, Dayong Zhou, Chen Ding, Yaqing Jin, Qingmei Tian, Xiangzhou Meng, Kefeng Pu, Yimin Zhu
Thrombosis, a critical event in blood vessels, not only is associated with myocardial infarction and stroke, but also accounts for considerable morbidity and mortality. Thrombolytic drugs are usually applied to the treatment of acute myocardial infarction, acute cerebral infarction and pulmonary embolism. However, thrombolytic drugs show limited efficacy in clinical practice because of the short half-life in plasma and systemic side effects. In this study, the cyclic RGD (cRGD) functionalized liposomes were prepared to encapsulate urokinase, a cheap and widely used thrombolytic drug in clinic and better thrombolysis efficacy was achieved...
April 1, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29369904/efficacy-of-lyophilised-platelet-rich-plasma-powder-on-healing-rate-in-patients-with-deep-second-degree-burn-injury-a-prospective-double-blind-randomized-clinical-trial
#10
Chi-Yung Yeung, Pai-Shan Hsieh, Lin-Gwei Wei, Li-Chuan Hsia, Lien-Guo Dai, Keng-Yen Fu, Niann-Tzyy Dai
Platelet-rich plasma (PRP) is a kind of plasma that is rich in platelets after processing. It includes various growth factors and cytokines, which speed up the process of wound healing and hemostasis. The PRP solution used in this study is diluted from lyophilized PRP powder, which decreased the possibility of contamination, facilitated the storage, and prolonged the storage life. From in vitro fibroblast proliferation testing, the numbers of PRP supplement were performed for 1, 4, and 7 times by continuous replacement of culture medium each day...
February 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29316749/-effects-of-baicalin-on-the-changes-in-hemorheology-of-acute-respiratory-distress-syndrome-in-rats
#11
Z M Zhao, Y M Zheng, Y L Zhang, S Q Li
Objective: To investigate the effect of baicalin on the changes in hemorheology and its mechanism during the development of Acute Respiratory Distress Syndrome(ARDS) induced by oleic acid (OA) in rats. Methods: Rats were randomized into 3 groups: control, ARDS (OA induction, 0.12 mg/kg) and ba-icalin-treated group (300 mg/kg). The blood samples were collected at 30 min, 1, 2, 3, 6, 12 and 6 h after OA injection. The whole blood viscosity, plasma viscosity, Maximum erythrocyte deformability index (DImax) were detected...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29302119/teg-directed-transfusion-in-complex-cardiac-surgery-impact-on-blood-product-usage
#12
Kevin Fleming, Roberta E Redfern, Rebekah L March, Nathan Bobulski, Michael Kuehne, John T Chen, Michael Moront
Complex cardiac procedures often require blood transfusion because of surgical bleeding or coagulopathy. Thrombelastography (TEG) was introduced in our institution to direct transfusion management in cardiothoracic surgery. The goal of this study was to quantify the effect of TEG on transfusion rates peri- and postoperatively. All patients who underwent complex cardiac surgery, defined as open multiple valve repair/replacement, coronary artery bypass grafting with open valve repair/replacement, or aortic root/arch repair before and after implementation of TEG were identified and retrospectively analyzed...
December 2017: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/29145170/perioperative-thrombocytopenia-predicts-poor-outcome-in-patients-undergoing-transcatheter-aortic-valve-implantation
#13
Maciej Mitrosz, Remigiusz Kazimierczyk, Malgorzata Chlabicz, Bozena Sobkowicz, Ewa Waszkiewicz, Anna Lisowska, Slawomir Dobrzycki, Wlodzimierz J Musial, Tomasz Hirnle, Karol A Kaminski, Agnieszka M Tycinska
PURPOSE: To determine the time point at which thrombocytopenia after TAVI procedure is an indicator of the worst prognosis, with special consideration of perioperative platelet and coagulation activation as its potential causes. METHODS: Thirty two patients (mean age 78.5±7.9years, 62% females) qualified for TAVI procedure were prospectively evaluated. Platelet counts were assessed at baseline and for the next three postoperative (POD) days. Platelet activation was evaluated by P-selectin (PS, serum, ELISA) and platelet factor 4 (PF-4, CTAD plasma), and blood coagulation activation by prothrombin fragments 1+2 (F1+2, plasma, ELISA)...
November 13, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/29142450/autologous-intrauterine-platelet-rich-plasma-instillation-for-suboptimal-endometrium-in-frozen-embryo-transfer-cycles-a-pilot-study
#14
Sunita R Tandulwadkar, Manasi V Naralkar, Akash D Surana, M Selvakarthick, Avinash H Kharat
Introduction: This pilot study was to evaluate the effectiveness of intrauterine infusion of autologous platelet-rich plasma (PRP) in infertile women undergoing frozen embryo transfer cycles with suboptimal endometrium. Material and Methods: Intrauterine instillation of autologous PRP was done in 68 women between 22 and 40 years, over 8 months, with suboptimal endometrial growth, and patients with repeated cycle cancellations, in addition to Estradiol valerate. Frozen embryo transfer was performed when the endometrium reached an optimal pattern in terms of thickness, appearance, and vascularity...
July 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29126476/high-throughput-human-plasma-n-glycan-analysis-using-dna-analyzer-and-multivariate-analysis-for-biomarker-discovery
#15
Hua-Tao Feng, Siying Lim, Anna Karen Carrasco Laserna, Pingjing Li, Xuejiao Yin, Erhan Simsek, Shaheer H Khan, Shiaw-Min Chen, Sam F Y Li
Carbohydrates form the majority of organic compounds found in nature and their presence on proteins influences many important bioactivities. Therefore, glycan profiling shows potential in clinical applications. This work demonstrates the use of a high-throughput GlycanAssure™ sample preparation technology and multi-capillary DNA analyzer for the analysis of the major N-linked glycans (N-glycans) found in human plasma. The application involves two biomarker studies: (1) in profiling patients with chronic kidney disease and (2) in differentiating heart disease patients with normal controls in response to an antiplatelet drug from hypo-responders...
December 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29122407/three-dimensional-poly-lactic-co-glycolic-acid-scaffold-containing-autologous-platelet-rich-plasma-supports-keloid-fibroblast-growth-and-contributes-to-keloid-formation-in-a-nude-mouse-model
#16
Chunlin Chen, Haibin Wang, Guozhang Zhu, Zhongsheng Sun, Xiang Xu, Fangwei Li, Shengkang Luo
BACKGROUND: There is a lack of proper animal models to study keloid formation. AIM: To create three-dimensional poly lactic-co-glycolic acid (PLGA) scaffolds containing autologous platelet-rich plasma (PRP) as an in vitro culture environment for keloid fibroblasts (KL), and to study their implantation into nude mice to mimic the process of keloid formation. METHODS: Normal fibroblasts (FB) and KL cells were isolated from surgical specimens and transduced with lentivirus loaded with green fluorescent protein (GFP) and luciferase genes...
January 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29118521/a-proposal-of-an-effective-platelet-rich-plasma-protocol-for-the-treatment-of-androgenetic-alopecia
#17
Juan Ferrando, Sandra Cecilia García-García, Ana Cecilia González-de-Cossío, Lola Bou, Esperanza Navarra
Background: Platelet-rich plasma (PRP) has emerged as a promising treatment for androgenetic alopecia (AGA). In spite of the several studies previously reported, to date, a standardized protocol for PRP preparation and application, as well as a standard method for evaluating results has not been established. Aims: The aim of this study is to propose a standardized method for preparation and application of PRP for male AGA (MAGA) and female AGA (FAGA) and assess its safety and efficacy as a co-adjuvant therapy...
October 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/29076239/use-of-epidermal-skin-grafts-in-chronic-wounds-a-case-series
#18
Peter Am Everts, Marco Warbout, Diana de Veth, Merel Cirkel, Nicole E Spruijt, Jaap Buth
In stalled, chronic wounds, more aggressive and proactive wound closure efforts are needed. We describe adjunctive use of epidermal grafting in patients with chronic wounds. Wound bed preparation consisted of surgical necrotectomy or sharp debridement, hyperbaric oxygen therapy, negative pressure wound therapy, compression therapy, platelet-rich plasma therapy and/or heparan sulphate agents. Epidermal grafts were harvested from the patient's thigh and applied to the wound. Wound and donor site healing was monitored...
December 2017: International Wound Journal
https://www.readbyqxmd.com/read/28952692/-investigation-of-mechanisms-of-action-of-growth-factors-of-autologous-platelet-rich-plasma-used-to-treat-erectile-dysfunction
#19
M V Epifanova, M E Chalyi, A O Krasnov
AIM: To determine the quantitative and qualitative composition of growth factors (PDGF-AA, PDGF-BB, VEGF, VEGF-D, FGF-acid, FGF-basic) and platelets in various modifications of APRP. MATERIALS AND METHODS: Blood of 12 male volunteers (control group) and 12 patients with ED was used to prepare APRP and the subsequently determine the concentration of growth factors. The growth factor concentrations (FGF acid, FGF basic, PDGF-AA, PDGF-BB, VEGF, VEGF-D) was determined using a flow cytometry-based xMAP Luminex (Gen-Probe) system...
September 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28941974/management-of-ulnar-collateral-ligament-injury-in-throwing-athletes-a-survey-of-the-american-shoulder-and-elbow-surgeons
#20
Daniel J Hurwit, Grant H Garcia, Joseph Liu, David W Altchek, Anthony Romeo, Joshua Dines
BACKGROUND: Amid evidence that the number of ulnar collateral ligament (UCL) reconstructions performed annually is on the rise, there continues to be significant variation among surgeons in the management of UCL injuries. The purpose of this paper was to survey the members of the American Shoulder and Elbow Surgeons (ASES) to assess current trends related to the comprehensive treatment of athletes presenting with UCL injury. METHODS: An online survey was distributed to the active members of the ASES...
November 2017: Journal of Shoulder and Elbow Surgery
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