نتایج جستجو برای: background prp platelet

تعداد نتایج: 940924  

Journal: :Stem Cell Research & Therapy 2021

Abstract Background Wound healing is impaired in patients with diabetes due to the multifactorial etiology of disease, which limits therapeutic efficacy various approaches. This study hypothesizes that combination adipose-derived stem cells (ADSCs) and platelet-rich plasma (PRP) might achieve optimally efficient diabetic wound healing. Methods ADSCs were isolated from adipose tissues Sprague-Da...

Background: The purpose of this study was to create biomaterial scaffolds like platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) containing stromal cell-derived factor-1 (SDF1) as a chemokine to induce hyaline cartilage regeneration of rabbit knee in a full thickness defect.Methods: We created a full thickness defect in the trochlear groove of thirty-six bilateral knees of eighteen matu...

Journal: :iranian journal of medical sciences 0
soghra bahmanpour laboratory for stem cell research, department of anatomical sciences, school of medicine, shiraz university of medical sciences, shiraz, iran maryam ghasemi phd student in anatomical sciences, school of medicine, shiraz university of medical sciences, shiraz, iran mohsen sadeghi-naini tehran university of medical science, tehran, iran iraj ragerdi kashani department of anatomical sciences, school of medicine, tehran university of medical sciences, tehran, iran

background: the purpose of this study was to create biomaterial scaffolds like platelet-rich plasma (prp) and platelet-rich fibrin (prf) containing stromal cell-derived factor-1 (sdf1) as a chemokine to induce hyaline cartilage regeneration of rabbit knee in a full thickness defect. methods: we created a full thickness defect in the trochlear groove of thirty-six bilateral knees of eighteen mat...

2013
Andrew Carr Cushla Cooper Richard Murphy Bridget Watkins Kim Wheway Ines Rombach David Beard

BACKGROUND Platelet-rich plasma (PRP) is an autologous platelet concentrate. It is prepared by separating the platelet fraction of whole blood from patients and mixing it with an agent to activate the platelets. In a clinical setting, PRP may be reapplied to the patient to improve and hasten the healing of tissue. The therapeutic effect is based on the presence of growth factors stored in the p...

Journal: :The American journal of sports medicine 2011
Sophia Harrison Patrick Vavken Sherwin Kevy May Jacobson David Zurakowski Martha M Murray

BACKGROUND Platelet-rich plasma (PRP) has been increasingly used in sports medicine applications. Platelets are thought to release growth factors important in wound healing, including transforming growth factor (TGF-β1), platelet-derived growth factor (PDGF-AB), and vascular endothelial growth factor (VEGF). However, little is known about the effect of platelet activator choice on growth factor...

Journal: :The American journal of sports medicine 2012
Augustus D Mazzocca Mary Beth R McCarthy David M Chowaniec Evan M Dugdale Derek Hansen Mark P Cote James P Bradley Anthony A Romeo Robert A Arciero Knut Beitzel

BACKGROUND Clinical application of platelet-rich plasma (PRP) in the realm of orthopaedic sports medicine has yielded variable results. Differences in separation methods and variability of the individual may contribute to these variable results. PURPOSE To compare the effects of different PRP separation methods on human bone, muscle, and tendon cells in an in vitro model. STUDY DESIGN Contr...

Journal: :Circulation 1998
R F Storey R G Wilcox S Heptinstall

BACKGROUND Citrated platelet-rich plasma (PRP) turbidimetry is used for assessing pharmacodynamic effects of glycoprotein (GP) IIb/IIIa antagonists in clinical trials. However, citrate can enhance the potency of at least eptifibatide (Integrilin), and turbidimetry is insensitive to microaggregate formation. We compared PRP turbidimetry, as a measure of macroaggregate formation, with single-plat...

2018
Hannah L Holmes Brooke Wilson Julian P Goerger Jesse L Silverberg Itai Cohen Warren R Zipfel Lisa A Fortier

BACKGROUND Biologics containing growth factors are frequently used to enhance healing after musculoskeletal injuries. One mechanism of action is thought to be though the ability of biologics to induce homing and migration of endogenous mesenchymal stromal cells (MSCs) to a target tissue. However, the ability of biologics to stimulate chemotaxis (directed migration of cells) and chemokinesis (in...

Journal: :The Journal of bone and joint surgery. American volume 2014
Carola Cavallo Giuseppe Filardo Erminia Mariani Elizaveta Kon Maurilio Marcacci Maria Teresa Pereira Ruiz Andrea Facchini Brunella Grigolo

BACKGROUND Platelet-rich plasma (PRP) has been advocated as one treatment for cartilage tissue regeneration. To date, several different platelet-rich formulations have been available, but a deep knowledge of their composition and mechanism of action in a specific clinical use is needed. The aim of this study was to investigate the effect of various PRP formulations on human chondrocytes in vitr...

Ali Delpisheh, Hamed Tavan, Mina Mamizadeh, Sajad Hatami, Vahid Hatami,

Background: Healing involves complex processes that are not yet fully known. The wound healing process consists of three stages. In all these stages, normal wound healing requires platelet activation, release of cytokines and growth hormones, and chemotaxis and cell differentiation. Platelets play a key role in homeostasis and wound healing and growth factor production of more than 30 carried o...

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