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PRP platelet rich plasma

Walid Ben-Nafa, Wendy Munro
INTRODUCTION: Lateral epicondylitis is a common musculoskeletal disorder of the upper limb. Corticosteroid injection has been widely used as a major mode of treatment. However, better understanding of the pathophysiology of the disease led to a major change in treating the disease, with new options including platelet-rich plasma (PRP) are currently used. Objectives/research aim: To systematically evaluate the effect of corticosteroid versus PRP injections for the treatment of LE. HYPOTHESIS: PRP injections provide longer-term therapeutic effect and less rate of complications compared to corticosteroid injection...
2018: SICOT-J
Ilaria Giusti, Marianna Di Francesco, Sandra D'Ascenzo, Paola Palumbo, Anna Rughetti, Luigi Dell'Orso, Paola Annunziata Varasano, Gabriella Lucidi Pressanti, Vincenza Dolo
The clinical use of platelet-rich plasma (PRP) containing or deprived of leukocytes remains a subject of debate and a controversial issue. It is not yet clear whether leukocyte content has a positive or negative effect on tissue healing processes. Several studies, conducted mainly in the orthopedic field, support the use of leukocyte-poor (LP) PRP, whereas other studies have not identified any significant differences between the use of LP and leukocyte-rich PRP. In the present study, the role of leukocytes contained in PRP was assessed to verify their in vitro effect on fibroblasts and endothelial cells, which have a leading role in the biological processes associated with wound healing (including angiogenesis and matrix remodeling)...
April 2018: Experimental and Therapeutic Medicine
Caroline J Reddel, Gabrielle J Pennings, Jennifer L Curnow, Vivien M Chen, Leonard Kritharides
Platelets play an important role in diseases such as cardiovascular disease and cancer, especially through their release of extracellular vesicles (EVs) and role in thrombosis. The effects of the anti-inflammatory drug colchicine on platelets are not well understood. We investigated the effect of colchicine on the release of pro-coagulant EVs from platelets under low-level activation. Citrated platelet-rich plasma (PRP) from healthy donors was incubated with 2 mM colchicine or vehicle at 37°C for 30 minutes with gentle rotation...
March 19, 2018: Thrombosis and Haemostasis
Hieronymus P Stevens, Simone Donners, Julia de Bruijn
Background: Androgenetic alopecia (AGA) is characterized by miniaturization of the hair follicles gradually causing conversion of terminal hairs into vellus hairs, leading to progressive reduction of the density of hair on the scalp. Approved therapeutic options are limited and show side effects. Objectives: To evaluate injections of stromal vascular fraction (SVF), which is rich in adipose-derived stromal cells (ASCs) in combination with platelet-rich plasma (PRP) in the upper scalp as a new autologous treatment option for AGA...
March 15, 2018: Aesthetic Surgery Journal
José M Vilar, Maria E Manera, Angelo Santana, Giuseppe Spinella, Oliver Rodriguez, Mónica Rubio, José M Carrillo, Joaquín Sopena, Miguel Batista
The goal of this study was to objectively assess the effect of a platelet-rich plasma (PRP) derivate in English bulldogs with stifle degenerative joint disease secondary to cranial cruciate ligament rupture (CCLR). We used a force platform and affixed electrogoniometers to measure peak vertical force (PVF), vertical impulse (VI), stance time (ST), and angular range of motion (AROM), from 12 lame client-owned English bulldogs with post-CCLR stifle joint abnormalities. The 12 affected subjects were treated with 4 intra-articular injections of PRP, at 30-day intervals...
2018: PloS One
Hua-Feng Zhang, Chen-Guang Wang, Hui Li, Yu-Ting Huang, Zhi-Jun Li
Purpose: Platelet-rich plasma (PRP) and hyaluronic acid (HA) have been increasingly used in recent years to treat knee osteoarthritis (OA). However, whether PRP is superior to HA is controversial. Methods: We conducted an electronic search of PubMed, Embase, ScienceDirect, and Cochrane library. The pooled data were analyzed using RevMan 5.1. Results: Three prospective and ten randomized trials were identified. PRP injections reduced pain more effectively than HA injections in OA of the knee at 6 months (mean difference [MD]=-14...
2018: Drug Design, Development and Therapy
Matthew T Houdek, Cody C Wyles, Mark S Collins, Benjamin M Howe, Andre Terzic, Atta Behfar, Rafael J Sierra
BACKGROUND: Randomized trials have shown the benefits of injecting bone marrow-derived mesenchymal stem cells (BmMSCs) after standard hip decompression in patients with osteonecrosis of the femoral head. However, the combination of BmMSCs and platelet-rich plasma (PRP) injected into the femoral head after decompression has not been reported previously. This study reports the results in a preliminary series of patients with osteonecrosis of the femoral head treated with BmMSCs plus PRP...
February 2018: Clinical Orthopaedics and related Research
Mohamed Hussein Medhat El-Komy, Noha Adly Saleh, Marwah Adly Saleh
Oral erosions of pemphigus vulgaris (PV) represent a therapeutic challenge. In this work we compared intralesional injection of steroids (ILS) and autologous platelet-rich plasma (PRP) treatment of oral erosions of PV. In this split-mouth randomized double blind study, one side of the buccal mucosa of 11 PV patients was injected with 10 mg/ml triamcinolone and the opposite side was injected with 1 millilitre of autologous PRP every 14 days for 3 months. The percentage of clinical improvement, pemphigus disease area index and pain score were recorded before and after therapy...
March 10, 2018: Archives of Dermatological Research
Mohammad-Hossein Beigi, Atefeh Atefi, Hamid-Reza Ghanaei, Sheyda Labbaf, Fatemeh Ejeian, Mohammad-Hossein Nasr-Esfahani
In the current study the effect of superimposing platelet-rich plasma (PRP) on different culture mediums in a three-dimensional (3D) alginate scaffold encapsulated with adipose mesenchymal stem cells (ADSCs) for cartilage tissue repair is reported. The 3D alginate scaffolds with co-administration of PRP and/or chondrogenic supplements had a significant effect on the differentiation of ADSCs into mature cartilage, as assessed by evaluation of the expression of cartilage related markers of Sox9, Collagen II, Aggrecan and collagen and glycosaminoglycan assays...
March 9, 2018: Journal of Tissue Engineering and Regenerative Medicine
Jenny F López, Jertta-Riina Sarkanen, Outi Huttala, Ilkka S Kaartinen, Hannu O Kuokkanen, Timo Ylikomi
Growth factors are the key elements in wound healing signaling for cell migration, differentiation and proliferation. Platelet-rich plasma (PRP), one of the most studied sources of growth factors, has demonstrated to promote wound healing in vitro and in vivo. Adipose tissue is an alternative source of growth factors. Through a simple lipoaspirate method, adipose derived growth factor-rich preparation (adipose tissue extract; ATE) can be obtained. The authors set out to compare the effects of these two growth factor sources in cell proliferation and migration (scratch) assays of keratinocyte, fibroblast, endothelial and adipose derived stem cells...
March 6, 2018: Cytotechnology
Ricardo Bastos, Marcelo Mathias, Renato Andrade, Raquel Bastos, Alex Balduino, Vinicius Schott, Scott Rodeo, João Espregueira-Mendes
PURPOSE: To compare the effectiveness and safety of intra-articular injections of autologous expanded mesenchymal stromal stem cells alone (MSCs), or in combination with platelet-rich plasma (MSCs + PRP), in patients with knee osteoarthritis. METHODS: Eighteen patients (57.6 ± 9.6 years) with radiographic symptomatic knee osteoarthritis (Dejour grades II-IV) were randomized to receive intra-articular injections of MSCs (n = 9) or MSCs + PRP (n = 9)...
March 6, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Eun Young Ko, Shivraj Hariram Nile, Yi-Sook Jung, Young Soo Keum
In this study, we reported the potential of various methanol fractions of onion (MFO) and its components quercetin and quercetin glucosides on platelet aggregation and antioxidant activity. The onion extracts were separated into several fractions using methanol and water. Further, these extracts were analyzed using simple high-performance liquid chromatography-diode array detector method to separate quercetin (Q), quercetin-4'- O -monoglucoside and quercetin-3, 4'- O -diglucoside from onion sample. It was observed that the bioactive compounds were accumulated in the non-polar portions rather than in the polar one...
March 2018: 3 Biotech
S Guner, S I Guner, M A Gokalp, M F Ceylan, S S Unsal, H Demir
OBJECTIVE: In view of the high occurrence of avascular necrosis of the femoral head (ANFH) after femoral neck fracture and the difficulties in the treatment, our work aimed to explore the effects of platelet-rich plasma (PRP) combined with tri-calcium phosphate (TCP) on the repair of ANFH after femoral neck fracture and to provide reference for clinical treatment. MATERIALS AND METHODS: Thirty New Zealand white rabbits were randomly divided into control group, TCP group, and PRP+TCP group...
February 2018: European Review for Medical and Pharmacological Sciences
X-L Zhang, Y-M Wang, K Chu, Z-H Wang, Y-H Liu, L-H Jiang, X Chen, Z-Y Zhou, G Yin
OBJECTIVE: In view of the high occurrence of avascular necrosis of the femoral head (ANFH) after femoral neck fracture and the difficulties in the treatment, our work aimed to explore the effects of platelet-rich plasma (PRP) combined with tri-calcium phosphate (TCP) on the repair of ANFH after femoral neck fracture and to provide reference for clinical treatment. MATERIALS AND METHODS: Thirty New Zealand white rabbits were randomly divided into control group, TCP group, and PRP+TCP group...
February 2018: European Review for Medical and Pharmacological Sciences
Jeevitaa Kshersagar, Ravi Kshirsagar, Shashikant Desai, Raghvendra Bohara, Meghnad Joshi
Direct application of amnion has greater risk of immunological rejection and infection. Decellularization is an effective method to lower the risk of immune complications and infections. The bioreactor assembly with multiple cassettes was designed for decellurization of multiple amnions with different cell types simultaneously in single run. A detergent-based protocol was modified to remove all cellular components from amnion and diminish the DNA content to render it non-immunogenic. Amnion (n = 10) were treated with 2% sodium dodecyl sulphate (SDS), 5% dimethyl sulfoxide (DMSO) and 2% sodium deoxycholeate (SD)...
March 5, 2018: Cell and Tissue Banking
Sirada Srihirun, Barbora Piknova, Nathawut Sibmooh, Alan N Schechter
Nitrite is recognized as a bioactive nitric oxide (NO) metabolite. We have shown that nitrite inhibits platelet activation and increases platelet cGMP levels in the presence of partially deoxygenated erythrocytes. In this study, we investigated the effect of nitrite on phosphorylation of vasodilator-stimulated phosphoprotein on residue serine 239 (P-VASPSer239), a marker of protein kinase G (PKG) activation, in human platelets. In platelet-rich plasma (PRP), nitrite itself had no effect on levels of P-VASPSer239 while DEANONOate increased P-VASPSer239...
2018: PloS One
Mohammad-Reza Mahmoudian-Sani, Fatemeh Rafeei, Razieh Amini, Massoud Saidijam
INTRODUCTION: Mesenchymal stem cells (MSCs) are multipotent stem cells that have the potential of proliferation, high self-renewal, and the potential of multilineage differentiation. The differentiation potential of the MSCs in vivo and in vitro has caused these cells to be regarded as potentially appropriate tools for wound healing. After the burn, trauma or removal of the tumor of wide wounds is developed. Although standard treatment for skin wounds is primary healing or skin grafting, they are not always practical mainly because of limited autologous skin grafting...
March 4, 2018: Journal of Cosmetic Dermatology
Go Kubota, Hiroto Kamoda, Sumihisa Orita, Kazuhidee Inage, Michihiro Ito, Masaomi Yamashita, Takeo Furuya, Tsutomu Akazawa, Yasuhiro Shiga, Seiji Ohtori
Study Design: Retrospective case series. Purpose: To examine the efficacy of platelet-rich plasma (PRP) for bone fusion in transforaminal lumbar interbody fusion (TLIF) using local bone grafting. Overview of Literature: Several authors have reported the efficacy of PRP for bone union in animal models. However, the use of PRP for bone fusion in TLIF surgery has not been fully explored. Methods: Twenty patients underwent single-level TLIF surgery because of L4 spondylolisthesis...
February 2018: Asian Spine Journal
Marzie Farimani, Jalal Poorolajal, Soghra Rabiee, Maryam Bahmanzadeh
Background: Platelets contain a significant amount of growth factors that have positive effects on local tissue repair and endometrial receptivity. Case: Here we present a 45-yr-old woman with primary infertility and two failed in vitro fertilization (IVF) cycles who was candidate to receive donor eggs. Five consecutive frozen-thawed embryo transfer cycles with good quality embryos were performed within 2 yr. With the diagnosis of recurrent implantation failure (RIF), the patient was treated for improving endometrial receptivity with intrauterine administration of autologous platelet-rich plasma (PRP), 24 hr before embryo transfer...
December 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
E Scott Sills, Natalie S Rickers, Xiang Li, Gianpiero D Palermo
Platelets modulate clinically relevant yet incompletely understood tissue regeneration processes, and platelet rich plasma (PRP) has been previously used with some success in various non-reproductive medical contexts. Here, we extended PRP application to ovarian tissue with a view to document impact on ovarian reserve among women attending for infertility treatment. PRP was freshly isolated from patients (n= 4) with diminished ovarian reserve as determined by at least one prior IVF cycle canceled for poor follicular recruitment response or estimated by serum AMH and/or FSH, no menses for ≥1 year...
February 28, 2018: Gynecological Endocrinology
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