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Prp effect

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https://www.readbyqxmd.com/read/28629466/intra-articular-injection-in-the-knee-of-adipose-derived-stromal-cells-stromal-vascular-fraction-and-platelet-rich-plasma-for-osteoarthritis
#1
Himanshu Bansal, Kristin Comella, Jerry Leon, Poonam Verma, Diwaker Agrawal, Prasad Koka, Thomas Ichim
BACKGROUND: Stromal vascular fraction (SVF) can easily be obtained from a mini-lipoaspirate procedure of fat tissue and platelet rich plasma (PRP) can be obtained from peripheral blood. We evaluated the safety and preliminary efficacy of administering SVF and PRP intra-articularly into patients with osteoarthritis grade 1 and 2. METHODS: A total of ten patients underwent a local tumescent liposuction procedure to remove approximately 100 ml of fat tissue from the abdomen...
June 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28629420/comparison-of-the-effects-of-platelet-rich-or-growth-factor-rich-plasma-on-intestinal-anastomosis-healing-in-pigs
#2
Gessica Giusto, Cristina Vercelli, Selina Iussich, Massimiliano Tursi, Giovanni Perona, Marco Gandini
BACKGROUND: The use of autologous platelet-rich plasma (PRP) and plasma rich in growth factors (PRGF) has been proposed for the treatment of several acute and chronic syndromes, such as corneal epithelial defects and dry eye syndrome, gum bleeding during oral surgery, and in orthopaedic surgery. We hypothesized that PRGF, rather than PRP, could be more effective because of its intrinsic characteristics in promoting the healing of intestinal anastomosis. The purpose of the present study was to evaluate and compare the effects of PRP and PRGF on various parameters of anastomotic healing in a swine model...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28625328/platelet-rich-plasma-for-the-treatment-of-photodamage-of-the-skin-of-the-hands
#3
J O Cabrera-Ramírez, A G Puebla-Mora, A González-Ojeda, D García-Martínez, J A Cortés-Lares, A R Márquez-Valdés, G I Contreras-Hernández, J Bracamontes-Blanco, J A Saucedo Ortiz, C Fuentes-Orozco
BACKGROUND: Platelet-rich plasma (PRP) provides growth factors that stimulate fibroblast activation and induce the synthesis of collagen and other components of the extracellular matrix. The objective of this study was to evaluate the effect of PRP in the treatment of photodamage of the skin of the hands. MATERIAL AND METHODS: This was an experimental study. Eighteen patients with aging of the skin of the dorsum of the hands (type III of the Glogau photoaging scale or class II of the Fitzpatrick wrinkle and elastosis scale) were included...
June 15, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28623810/platelet-granule-release-is-associated-with-reactive-oxygen-species-generation-during-platelet-storage-a-direct-link-between-platelet-pro-inflammatory-and-oxidation-states
#4
Mehran Ghasemzadeh, Ehteramolsadat Hosseini
BACKGROUND: Upon platelet stimulation with agonists, reactive oxygen species (ROS) generation enhances platelet activation and granule release. Whether ROS generation during platelet storage could be directly correlated with the expression of proinflammatory molecules and granule release has been investigated in this study. MATERIAL AND METHOD: PRP-platelet concentrates were subjected to flowcytometry analysis to assess the expression of platelet activation marker, P-selectin and CD40L during storage...
June 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28615133/platelet-rich-plasma-with-keratinocytes-and-fibroblasts-enhance-healing-of-full-thickness-wounds
#5
Jia Xian Law, Shiplu Roy Chowdhury, Aminuddin Bin Saim, Ruszymah Bt Hj Idrus
Advances in tissue engineering led to the development of various tissue-engineered skin substitutes (TESS) for the treatment of skin injuries. The majority of the autologous TESS required lengthy and costly cell expansion process to fabricate. In this study, we determine the possibility of using a low density of human skin cells suspended in platelet-rich plasma (PRP)-enriched medium to promote the healing of full-thickness skin wounds. To achieve this, full-thickness wounds of size 1.767 cm(2) were created at the dorsum part of nude mice and treated with keratinocytes (2 × 10(4) cells/cm(2)) and fibroblasts (3 × 10(4) cells/cm(2)) suspended in 10% PRP-enriched medium...
June 7, 2017: Journal of Tissue Viability
https://www.readbyqxmd.com/read/28610571/erratum-to-effects-of-platelet-rich-plasma-prp-on-human-gingival-fibroblast-osteoblast-and-periodontal-ligament-cell-behaviour
#6
Eizaburo Kobayashi, Masako Fujioka-Kobayashi, Anton Sculean, Vivianne Chappuis, Daniel Buser, Benoit Schaller, Ferenc Dőri, Richard J Miron
No abstract text is available yet for this article.
June 13, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28610547/human-plasma-rich-in-growth-factors-improves-survival-and-neurite-outgrowth-of-spiral-ganglion-neurons-in-vitro
#7
Michael Stolle, Jennifer Schulze, Ariane Römer, Thomas Lenarz, Martin Durisin, Athanasia Warnecke
BACKGROUND: Platelet-rich and platelet poor plasma (PRP and PPP) are autologous preparations from peripheral blood and contain several growth factors and cytokines involved in tissue repair. Although their neuroprotective and -regenerative properties have been already described, little is known about their effects in the inner ear. We therefore examined the effects of PRP and PPP on spiral ganglion neurons (SGN) in vitro. RESULTS: For all experiments, spiral ganglia were isolated from neonatal rats and were cultured in serum-free medium...
June 13, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28592806/platelet-rich-plasma-respectively-reduces-and-promotes-adipogenic-and-myofibroblastic-differentiation-of-human-adipose-derived-stromal-cells-via-the-tgf%C3%AE-signalling-pathway
#8
Bérengère Chignon-Sicard, Magali Kouidhi, Xi Yao, Audrey Delerue-Audegond, Phi Villageois, Pascal Peraldi, Patricia Ferrari, Yves Rival, David Piwnica, Jérôme Aubert, Christian Dani
Autologous fat grafting is a gold standard therapy for soft tissue defects, but is hampered by unpredictable postoperative outcomes. Fat graft enrichment with adipose-derived stromal cell (ASCs) was recently reported to enhance graft survival. Platelet-rich plasma (PRP) has also emerged as a biologic scaffold that promotes fat graft viability. Combined ASC/PRP fat grafting enrichment is thus a promising new regenerative medicine approach. The effects of PRP on ASC proliferation are well documented, but the impact of PRP on ASC differentiation has yet to be investigated in depth to further elucidate the PRP clinical effects...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28590091/an-update-on-the-protocols-and-biologic-actions-of-platelet-rich-fibrin-in-dentistry
#9
Rucha Shah, Triveni M G, Raison Thomas, Dhoom Singh Mehta
Platelet rich fibrin (PRF) is a surgical biologic additive that is prepared by manipulation of autologous blood. It has now evolved to become one of the most widely used platelet concentrate in dentistry. It has almost replaced Platelet rich plasma (PRP) for usage owing to its advantages such as being 100% autogenous, easy technique, time and cost effectiveness, superior & prolonged growth factor release. It finds varied applications in dentistry including management of gingival recession, for guided bone regeneration in periodontal, peri-implant and endodontic bone defects...
June 2017: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28589973/the-effect-of-a-membrane-mimicking-environment-on-the-interactions-of-cu-2-with-an-amyloidogenic-fragment-of-chicken-prion-protein
#10
Aleksandra Hecel, Sara Draghi, Daniela Valensin, Henryk Kozlowski
Prion proteins (PrP) from different species have the ability to tightly bind Cu(2+) ions. Copper coordination sites are located in the disordered and flexible N-terminal region which contains several His anchoring sites. Among them, two His residues are found in the so called amyloidogenic PrP region which is believed to play a key role in the process leading to oligomer and fibril formation. Both chicken and human amyloidogenic regions have a hydrophobic C-terminal region rich in Ala and Val amino acids. Recent findings revealed that this domain undergoes random coil to α-helix structuring upon interaction with membrane models...
June 7, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28587666/protocol-for-a-systematic-review-of-the-efficacy-of-fat-grafting-and-platelet-rich-plasma-for-wound-healing
#11
Oliver J Smith, Muholan Kanapathy, Ankur Khajuria, Max Prokopenko, Nadine Hachach-Haram, Haroon Mann, Ash Mosahebi
BACKGROUND: The use of fat grafting as a reconstructive surgical option is becoming much more common. Adipose-derived stem cells found in fat grafts are believed to facilitate wound healing via differentiation into fibroblasts and keratinocytes and the release of pro-healing growth factors. Several small studies have shown a positive effect of fat grafting in healing of wounds of a variety of aetiologies. When fat is combined with autologous platelet-rich plasma (PRP), there may be enhanced healing effects...
June 6, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28587096/the-effect-of-platelet-rich-fibrin-calcium-sulfate-hemihydrate-platelet-rich-plasma-and-resorbable-collagen-on-soft-tissue-closure-of-extraction-sites
#12
Lisa M Yerke, Amal Jamjoom, Talal M Zahid, Robert E Cohen
Rapid and complete soft tissue healing after tooth extraction minimizes surgical complications and facilitates subsequent implant placement. We used four treatment methods and assessed changes in soft tissue socket closure following tooth extraction in humans. The effects of platelet-rich fibrin-calcium sulfate hemihydrate (PRF-CSH), platelet-rich plasma-calcium sulfate hemihydrate (PRP-CSH), a resorbable collagen dressing (RCD), and no grafting material were compared in a randomized, controlled pilot study with a blinded parallel design (N = 23)...
May 25, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28584745/autologous-platelet-rich-plasma-versus-corticosteroid-in-the-management-of-elbow-epicondylitis-a-randomized-study
#13
Ankit Varshney, Rajesh Maheshwari, Anil Juyal, Atul Agrawal, Prabhnoor Hayer
INTRODUCTION: Elbow epicondylar tendinitis is a common problem for patients whose activities require strong gripping or repetitive wrist movements in the day-to-day activities of life. Histologic specimens from chronic cases confirm that tendinitis is not an acute inflammatory condition but rather a failure of the normal tendon repair mechanism associated with angiofibroblastic degeneration. Tendon regeneration may be improved by injecting autologous growth factors obtained from the patient's own blood...
April 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28580343/effectiveness-of-thymoquinone-zeolite-and-platelet-rich-plasma-in-model-of-corrosive-oesophagitis-induced-in-rats
#14
Gökhan Karaca, Oktay Aydin, Faruk Pehlivanli, Canan Altunkaya, Hafize Uzun, Osman Güler
PURPOSE: The effectiveness of platelet-rich plasma (PRP), thymoquinone, and zeolite in corrosive esophageal burns was investigated in a rat model. METHODS: Four groups were comprised as containing 10 rats in each group. For group I, oesophagitis was induced and no other procedure was performed (control group). For group II, oesophagitis was induced and thymoquinone was administered for 1 week via oral gavage once a day (thymoquinone group). For group III, oesophagitis was induced for 1 week via oral gavage once a day (PRP group)...
June 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28579963/olesoxime-inhibits-cardioplegia-induced-ischemia-reperfusion-injury-a-study-in-langendorff-perfused-rabbit-hearts
#15
Aida Salameh, Maren Keller, Ingo Dähnert, Stefan Dhein
Objective: During cardioplegia, which is often used in cardiac surgery, the heart is subjected to global ischemia/reperfusion injury, which can result in a post-operative impairment of cardiac function. Mitochondria permeability transition pores (MPTP) play a key role in cardiomyocyte survival after ischemia/reperfusion injury. It was shown in clinical settings that blockers of MPTP like cyclosporine might have a positive influence on cardiac function after cardioplegic arrest. Olesoxime, which is a new drug with MPTP blocking activity, has been introduced as a neuroprotective therapeutic agent...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28578703/effects-of-platelet-rich-plasma-prp-on-human-gingival-fibroblast-osteoblast-and-periodontal-ligament-cell-behaviour
#16
Eizaburo Kobayashi, Masako Fujioka-Kobayashi, Anton Sculean, Vivianne Chappuis, Daniel Buser, Benoit Schaller, Forenc Dőri, Richard J Miron
BACKGROUND: The use of platelet rich plasma (PRP, GLO) has been used as an adjunct to various regenerative dental procedures. The aim of the present study was to characterize the influence of PRP on human gingival fibroblasts, periodontal ligament (PDL) cells and osteoblast cell behavior in vitro. METHODS: Human gingival fibroblasts, PDL cells and osteoblasts were cultured with conditioned media from PRP and investigated for cell migration, proliferation and collagen1 (COL1) immunostaining...
June 2, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28576047/optimally-designed-collagen-polycaprolactone-biocomposites-supplemented-with-controlled-release-of-ha-tcp-rhbmp-2-and-ha-tcp-prp-for-hard-tissue-regeneration
#17
WonJin Kim, Chul Ho Jang, GeunHyung Kim
Collagen has been widely used as a very promising material to regenerate various tissues. It is a chief component of the extracellular matrix, and encourages various biological effects conducive to tissue regeneration. However, poor mechanical stability, low processability, and high level of water absorption can lead to impaired control of growth factor release and have impeded the use of collagen as a functional biomedical scaffold. Here, to overcome the shortcomings of collagen scaffolds, we have additively manufactured collagen/polycaprolactone (PCL) biocomposites supplemented with a bioceramic (hydroxyapatite (HA)/β-tricalcium-phosphate (TCP)) and two growth factors (recombinant human bone morphogenetic protein-2 [rhBMP-2] and platelet-rich plasma [PRP])...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28573093/hydrogel-and-platelet-rich-plasma-combined-treatment-to-accelerate-wound-healing-in-a-nude-mouse-model
#18
Yu Gil Park, In Ho Lee, Eun Soo Park, Jin Young Kim
BACKGROUND: Platelet-rich plasma (PRP) contains high concentrations of growth factors involved in wound healing. Hydrogel is a 3-dimensional, hydrophilic, high-molecular, reticular substance generally used as a dressing formulation to accelerate wound healing, and also used as a bio-applicable scaffold or vehicle. This study aimed to investigate the effects of PRP and hydrogel on wound healing, in combination and separately, in an animal wound model. METHODS: A total of 64 wounds, with 2 wounds on the back of each nude mouse, were classified into 4 groups: a control group, a hydrogel-only group, a PRP-only group, and a combined-treatment group...
May 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28567426/treatment-of-subacromial-impingement-syndrome-platelet-rich-plasma-or-exercise-therapy-a-randomized-controlled-trial
#19
Parisa Nejati, Armita Ghahremaninia, Farrokh Naderi, Safoora Gharibzadeh, Ali Mazaherinezhad
BACKGROUND: Subacromial impingement syndrome (SAIS) is the most common disorder of the shoulder. The evidence for the effectiveness of treatment options is inconclusive and limited. Therefore, there is a need for more evidence in this regard, particularly for long-term outcomes. HYPOTHESIS: Platelet-rich plasma (PRP) would be an effective method in treating subacromial impingement. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28567002/iron-restricted-diet-affects-brain-ferritin-levels-dopamine-metabolism-and-cellular-prion-protein-in-a-region-specific-manner
#20
Jessica M V Pino, Marcio H M da Luz, Hanna K M Antunes, Sara Q de Campos Giampá, Vilma R Martins, Kil S Lee
Iron is an essential micronutrient for several physiological functions, including the regulation of dopaminergic neurotransmission. On the other hand, both iron, and dopamine can affect the folding and aggregation of proteins related with neurodegenerative diseases, such as cellular prion protein (PrP(C)) and α-synuclein, suggesting that deregulation of iron homeostasis and the consequential disturbance of dopamine metabolism can be a risk factor for conformational diseases. These proteins, in turn, are known to participate in the regulation of iron and dopamine metabolism...
2017: Frontiers in Molecular Neuroscience
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