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Plasma rich in platelets

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https://www.readbyqxmd.com/read/28922143/leukocyte-reduced-platelet-rich-plasma-stimulates-the-in-vitro-proliferation-of-adipose-tissue-derived-mesenchymal-stem-cells-depending-on-pdgf-signaling
#1
Siegmund Lang, Marietta Herrmann, Christian Pfeifer, Gero Brockhoff, Johannes Zellner, Michael Nerlich, Peter Angele, Lukas Prantl, Sebastian Gehmert, Markus Loibl
BACKGROUND: Platelet-rich Plasma (PRP) is suggested as xenoprotein-free cell-culture medium replacement for animal-derived supplements. OBJECTIVE: The aim of this study was to investigate PRP-triggered signaling in adipose derived mesenchymal stem cells (ASCs). METHODS: PRP was obtained from 4 male patients. We incubated ASCs in α-MEM with different Platelet derived growth factor (PDGF) subtypes or 10% or 20% pooled PRP or 20% fetal calf serum (FCS) prior to determination of the S-phase fraction (SPF)...
September 11, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28915522/comparison-of-platelet-rich-plasma-stromal-vascular-fraction-svf-or-svf-with-an-injectable-plga-nanofiber-scaffold-for-the-treatment-of-osteochondral-injury-in-dogs
#2
Samuel P Franklin, Aaron M Stoker, Chantelle C Bozynksi, Keiichi Kuroki, Kevin M Clarke, Jed K Johnson, James L Cook
No abstract text is available yet for this article.
September 15, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28904970/responders-to-platelet-rich-plasma-in-osteoarthritis-a-technical-analysis
#3
REVIEW
Christophe Milants, Olivier Bruyère, Jean-François Kaux
PURPOSE: To evaluate the similarities and differences between the variety of platelet-rich plasma (PRP) formulations, preparation, and uses to try to determine the best responses for the treatment of knee osteoarthritis. MATERIALS AND METHODS: A comparison of the outcomes of randomized controlled trials (RCTs) included in the 3 most recent and high-quality meta-analyses to classify the different studies in 2 groups (bad responders group (BRG) and very good responders group (VGRG))...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28904675/von-willebrand-s-disease-case-report-and-review-of-literature
#4
Hanae Echahdi, Brahim El Hasbaoui, Mohamed El Khorassani, Aomar Agadr, Mohamed Khattab
Von Willebrand Disease (VWD) is the most common human inherited bleeding disorder due to a defect of Von Willebrand Factor (VWF), which a glycoprotein crucial for platelet adhesion to the subendothelium after vascular injury. VWD include quantitative defects of VWF, either partial (type 1 with VWF levels < 50 IU/dL) or virtually total (type 3 with undetectable VWF levels) and also qualitative defects of VWF (type 2 variants with discrepant antigenic and functional VWF levels). The most bleeding forms of VWD usually do not concern type 1 patients with the mildest VWF defects (VWF levels between 30 and 50IU/dL)...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28902937/inside-out-and-standard-vein-grafts-associated-with-platelet-rich-plasma-prp-in-sciatic-nerve-repair-a-histomorphometric-study
#5
José Sidney Roque, Karina Torres Pomini, Rogério Leone Buchaim, Daniela Vieira Buchaim, Jesus Carlos Andreo, Domingos Donizeti Roque, Antonio de Castro Rodrigues, Geraldo Marco Rosa, Luis Henrique Rapucci Moraes, Fausto Viterbo
Purpose: To evaluated the tubulization technique with standard and inside-out vein, filled or not with platelet-rich plasma (PRP), in sciatic nerve repair. Methods: Seventy male Wistar rats were randomly divided into five groups: IOVNF (Inside-Out Vein with No Filling); IOVPRP (Inside-Out Vein filled with PRP); SVNF (Standard Vein with No Filling); SVPRP (Standard Vein filled with PRP); Sham (Control). The left external jugular vein was used as graft in a 10 mm nervous gap...
August 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28900553/treatment-of-partial-rotator-cuff-tear-with-ultrasound-guided-platelet-rich-plasma
#6
Vetrivel Chezian Sengodan, Sajith Kurian, Raghupathy Ramasamy
BACKGROUND: The treatment of symptomatic partial rotator cuff tear has presented substantial challenge to orthopaedic surgeons as it can vary from conservative to surgical repair. Researches have established the influence of platelet rich plasma in healing damaged tissue. Currently very few data are available regarding the evidence of clinical and radiological outcome of partial rotator cuff tear treated with ultrasound guided platelet rich plasma injection in English literature. MATERIALS AND METHODS: 20 patients with symptomatic partial rotator cuff tears were treated with ultrasound guided platelet rich plasma injection...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28900383/effects-of-platelet-rich-plasma-and-chondrocyte-co-culture-on-msc-chondrogenesis-hypertrophy-and-pathological-responses
#7
Rouhallah Ramezanifard, Mahboubeh Kabiri, Hana Hanaee Ahvaz
Regarding the inadequate healing capability of cartilage tissue, cell-based therapy is making the future of cartilage repair and regeneration. Mesenchymal stem cells (MSC) have shown great promise in cartilage regeneration. However, a yet-unresolved issue is the emergence of hypertrophic and pathologic markers during in vitro MSC chondrogenesis. Articular chondrocytes (AC) can suppress the undesired hypertrophy when co-cultured with MSC. On the other hand, platelet rich plasma (PRP), is considered potentially effective for cartilage repair and in-vitro chondrogenesis...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28895770/the-use-of-platelet-rich-plasma-prp-in-the-treatment-of-gastrocnemius-strains-a-retrospective-observational-study
#8
Paolo Borrione, Chiara Fossati, Maria Teresa Pereira, Silvana Giannini, Marco Davico, Carlo Minganti, Fabio Pigozzi
The aim of the present retrospective observational study was to evaluate the time of functional recovery following a specific combined therapeutic approach characterized by an active exercise therapy carried out immediately after Platelet-rich plasma (PRP) injections for the treatment of the muscular lesion of the distal musculotendinous junction of the gastrocnemius medial head.Medical records of 31 subjects treated with three PRP intra-lesional ultrasound guided injections and 30 patients treated with the standard therapeutic approach (control group) were analyzed...
September 12, 2017: Platelets
https://www.readbyqxmd.com/read/28887963/facile-one-pot-green-synthesis-antibacterial-antifungal-antioxidant-and-antiplatelet-activities-of-lignin-capped-silver-nanoparticles-a-promising-therapeutic-agent
#9
M B Marulasiddeshwara, S S Dakshayani, M N Sharath Kumar, R Chethana, P Raghavendra Kumar, S Devaraja
The current work portrays the green synthesis of Lignin Capped Silver Nanoparticles (LCSN) and their antibacterial, antifungal, antioxidant and antiplatelet potential. The LCSN was synthesized in water using a carbohydrate based polymer 'lignin' as the reducing and capping agents. The peak at 406nm (λmax) in the UV-Vis., spectrum and EDX analysis confirmed 1.68% (w/w) of silver was found to be loaded on lignin. The characteristic sharp peaks appeared in the PXRD spectrum showed fcc crystalline structure LCSN...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28887865/plasma-rich-plasma-the-ultimate-secret-for-youthful-skin-elixir-and-hair-growth-triggering
#10
REVIEW
Ebtisam Elghblawi
The clinical application of platelet-rich plasma (PRP) is based on the increase in the concentration of growth factors that are released from alpha-granule of the concentrated platelets and in the secretion of proteins which are able to capitalize on the healing process at the cellular level. It has been invented to restore the natural beauty by starting the natural rejuvenation process of the skin and aiming to make it function as a younger one and to keep the skin youthful and maintain it. Besides that, it is also emerged to include hairs as a new injectable procedure to enable stimulating hair growth locally and topically; preventing its fall; improving hair shaft, hair stem, and its caliber; increasing its shine, vitality, and pliability; and declining hair splitting and breakage...
September 8, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28886194/a-new-rabbit-model-of-impaired-wound-healing-in-an-x-ray-irradiated-field
#11
Kazutoshi Fujita, Soh Nishimoto, Toshihiro Fujiwara, Yohei Sotsuka, Maki Tonooka, Kenichiro Kawai, Masao Kakibuchi
Radiation is an important therapy for cancer with many benefits; however, its side effects, such as impaired wound healing, are a major problem. While many attempts have been made to overcome this particular disadvantage, there are few effective treatments for impaired wound healing in an X-ray-irradiated field. One reason for this deficiency is the lack of experimental models, especially animal models. We have previously reported a mouse model of impaired wound healing in which the irradiation area was restricted to the hindlimbs...
2017: PloS One
https://www.readbyqxmd.com/read/28881440/injectable-mussel-inspired-immobilization-of-platelet-rich-plasma-on-microspheres-bridging-adipose-micro-tissues-to-improve-autologous-fat-transplantation-by-controlling-release-of-pdgf-and-vegf-angiogenesis-stem-cell-migration
#12
Shaolong Zhou, Qiang Chang, Feng Lu, Malcolm Xing
Platelets-rich plasma (PRP) can produce growth factors (GFs) to improve angiogenesis. However, direct injection of PRP does not lead to highly localized GFs. The current study employs a mussel-inspired polydopamine to immobilize PRP on gelatin microspheres (GMs) with the purpose of bridging adipose micro-tissues to help implanted fat survive (GM-pDA-PRP). Enhanced PRP adhesion leads to a prolonged and localized production of GFs, which is verified by platelet counting and by ELISA of vascular endothelial growth factors (VEGFs) and of platelet derived growth factors (PDGFs)...
September 7, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28880362/cold-platelets-for-trauma-associated-bleeding-regulatory-approval-accreditation-approval-and-practice-implementation-just-the-tip-of-the-iceberg
#13
James R Stubbs, Sheryl A Tran, Richard L Emery, Scott A Hammel, De Anna L Haugen, Martin D Zielinski, Scott P Zietlow, Donald Jenkins
BACKGROUND: Laboratory and clinical evidence suggest that cold-stored platelets (CS-PLTs) might be preferable to room temperature platelets (RT-PLTs) for active bleeding. Ease of prehospital use plus potential hemostatic superiority led our facility to pursue approval of CS-PLTs for actively bleeding trauma patients. STUDY DESIGN AND METHODS: From November 18, 2013, through October 8, 2015, correspondence was exchanged between our facility, the AABB, and the US Food and Drug Administration (FDA)...
September 6, 2017: Transfusion
https://www.readbyqxmd.com/read/28875826/current-treatment-options-for-osteoarthritis
#14
Sevdalina Lambova, Walter Hermann, Ulf Müller-Ladner
BACKGROUND: Osteoarthritis (ОА) is the most common joint disease and a leading cause for impaired function and disability with significant treatment costs and socio-economic burden. Despite recent achievements in the knowledge on disease pathogenesis, the treatment is still a challenge and contrary to inflammatory joint diseases, no disease-modifying drugs are currently available for OA. OBJECTIVE: Different response in different localizations of the disease further complicates the therapeutic choice...
August 29, 2017: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/28873284/platelet-rich-plasma-ultrasound-guided-injection-in-the-treatment-of-carpal-tunnel-syndrome-a-placebo-controlled-clinical-study
#15
M-A Malahias, V S Nikolaou, E O Johnson, M-K Kaseta, S-T Kazas, G C Babis
PURPOSE: To demonstrate whether and to what extent a single injection of Platelet-Rich Plasma (PRP), under ultrasound guidance, can improve the clinical symptoms of patients with a mild to moderate carpal tunnel syndrome (CTS). METHODS: We conducted a prospective, randomized, clinical study including 50 patients suffering from mild to moderate CTS for a minimum duration of 3-months. Patients were randomly divided into two groups: A (26 patients) received an ultrasound-guided PRP injection into the carpal tunnel, whereas Group B (24 patients) was injected with placebo (0...
September 5, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28865187/sustained-release-of-multicomponent-platelet-rich-plasma-proteins-from-hydrolytically-degradable-peg-hydrogels
#16
Era Jain, Saahil Sheth, Andrew Dunn, Silviya P Zustiak, Scott A Sell
Platelet-rich plasma (PRP), an autologous blood derived product is a concentrated mix of multiple growth factors and cytokines. Direct injections of PRP are clinically used for treatment of various musculoskeletal disorders and in wound healing. However, PRP therapy has met with limited clinical success possibly due to unpredictable and premature bolus delivery of PRP growth factors. The objective of this study was to predictably control the bioavailability of PRP growth factors using a hydrolytically degradable polyethylene glycol (PEG) hydrogel...
September 2, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28863268/2-years-outcome-of-thread-lifting-with-absorbable-barbed-pdo-threads-innovative-score-for-objective-and-subjective-assessment
#17
Yasser Helmy Ali
BACKGROUND: Thread lifting rejuvenation procedures are re-evolved again, after developing of absorbable threads, with very popular spread among plastic surgeons and dermatologists but with little articles have been written in literature about absorbable threads. Objective to evaluate two years' outcome of absorbable barbed thread lifting used for facial rejuvenation. METHODS: Prospective comparative study both objectively and subjectively and follow up assessment for 24 months...
September 1, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28860871/first-in-man-intraglandular-implantation-of-stromal-vascular-fraction-and-adipose-derived-stem-cells-plus-platelet-rich-plasma-in-irradiation-induced-gland-damage-a-case-study
#18
Kristin Comella, Walter Bell
BACKGROUND: Stromal vascular fraction (SVF) is a mixture of cells which can be isolated from a mini-lipoaspirate of fat tissue. Platelet-rich plasma (PRP) is a mixture of growth factors and other nutrients which can be obtained from peripheral blood. Adipose-derived stem/stromal cells (ADSCs) can be isolated from fat tissue and expanded in culture. The SVF includes a variety of different cells such as ADSCs, pericytes, endothelial/progenitor cells, and a mix of different growth factors...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28859737/techniques-for-optimizing-surgical-scars-part-1-wound-healing-and-depressed-atrophic-scars
#19
Sailesh Konda, Kathryn Potter, Vicky Zhen Ren, Apphia Lihan Wang, Aditya Srinivasan, Suneel Chilukuri
Surgical management of benign or malignant cutaneous tumors may result in noticeable scars that are of great concern to patients, regardless of sex, age, or ethnicity. Techniques to optimize surgical scars are discussed in this three-part review. In part 1, an overview of the importance of preoperative planning, intraoperative technique, and pathophysiology of wound healing is followed by a discussion of scar revision options for depressed/atrophic scars. Scar revision options for these scars include dermabrasion, needling and subcision, punch excision and grafts, fillers, nonablative fractional lasers, ablative and fractional ablative lasers, and platelet-rich plasma (PRP)...
2017: Skinmed
https://www.readbyqxmd.com/read/28854761/platelet-rich-plasma-injections-as-a-treatment-for-refractory-patellar-tendinosis-a-meta-analysis-of-randomised-trials
#20
REVIEW
Leanne Dupley, Charalambos P Charalambous
Purpose: Patellar tendinosis (PT) is a common condition amongst athletes. In this study, we perform a meta-analysis on randomised controlled trials (RCTs) to evaluate the use of platelet-rich plasma (PRP) for refractory PT. Methods: A literature search was undertaken in various databases from their year of inception to October 2015. The primary outcome measure was the Victorian Institute of Sports Assessment-Patella (VISA-P) score. Results: We identified 2 RCTs comparing PRP injections to alternative treatment options (extracorporeal shockwave therapy [ESWT] and dry needling of the tendon)...
September 1, 2017: Knee Surgery & related Research
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