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https://www.readbyqxmd.com/read/29772339/wound-healing-effects-of-a-curcuma-zedoaria-polysaccharide-with-platelet-rich-plasma-exosomes-assembled-on-chitosan-silk-hydrogel-sponge-in-a-diabetic-rat-model
#1
Ning Xu, Lili Wang, Junjie Guan, Chao Tang, Ning He, Wei Zhang, Shiping Fu
One homogeneous polysaccharide (ZWP) was successfully isolated and purified from the rhizomes of Curcuma zedoaria and the aim of present study was to determine the potential of chitosan/silk hydrogel sponge loaded with platelet-rich plasma exosomes (PRP-Exos), ZWP or PRP-Exos/ZWP on wound-healing in diabetic rats. An in vivo diabetic wound healing study showed that separate or combined treatments all resulted in a wound contraction in diabetic rats, as evidenced by a decrease of ulcer and an increase of epidermal thickness, but PRP-Exos/ZWP combination therapy was more successful in wound closing than either PRP-Exos or ZWP single administration...
May 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29766749/enhanced-sternal-healing-via-platelet-rich-plasma-and-biodegradable-gelatin-hydrogel
#2
Masafumi Shibata, Gen Takagi, Mitsuhiro Kudo, Jiro Kurita, Yoko Kawamoto, Yasuo Miyagi, Mikimoto Kanazashi, Takashi Sakatani, Zenya Naito, Yasuhiko Tabata, Masaaki Miyamoto, Takashi Nitta
Platelet-rich plasma (PRP) contains numerous growth factors and promotes bone fracture healing. The aim of this study was to evaluate the effectiveness of the controlled release of PRP from biodegradable gelatin hydrogel for promoting healing in a rabbit ischemic sternal model. PRP was prepared from the whole blood of a Japanese white rabbit. Sixteen rabbits were randomized into four groups (each n = 4) and all underwent median sternotomy and bilateral internal thoracic artery removal. Before the sternum was closed, the following solutions were applied between the sternum incisions in three of the groups: 30 mg of gelatin hydrogel incorporating 300 μL of phosphate-buffered saline, 300 μL of a solution form of PRP, or 30 mg of gelatin hydrogel incorporating 300 μL of PRP (PRP+Gel)...
May 16, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29745047/systematic-review-of-the-efficacy-of-fat-grafting-and-platelet-rich-plasma-for-wound-healing
#3
Oliver J Smith, Muholan Kanapathy, Ankur Khajuria, Max Prokopenko, Nadine Hachach-Haram, Haroon Mann, Ash Mosahebi
Adipose-derived stem cells found in fat grafts may have significant healing properties. When fat is combined with autologous platelet-rich plasma (PRP), there may be enhanced healing effects due to the pro-angiogenic and anti-inflammatory effects of PRP. This study aimed to evaluate the current evidence on fat grafting in combination with PRP for wound healing to establish the efficacy of this technique. A comprehensive search in the MEDLINE, EMBASE, CENTRAL, Science Citation Index, and Google Scholar databases (to March 2017) was conducted to identify studies on fat grafting and PRP for wound healing...
May 9, 2018: International Wound Journal
https://www.readbyqxmd.com/read/29713597/the-role-of-prp-and-adipose-tissue-derived-keratinocytes-on-burn-wound-healing-in-diabetic-rats
#4
Navid Hosseini Mansoub, Mehmet Gürdal, Elif Karadadaş, Hilal Kabadayi, Seda Vatansever, Gulinnaz Ercan
Introduction: Diabetic burn wounds and ulcers are significant complications of diabetic patients. The aim of this study is to investigate the use of platelet rich-plasma (PRP) and/or keratinocyte-like cells (KLCs) in diabetic thermal wound rat model and to evaluate EGF, FGF-2, TGF-β1, COL1α2, MCP-1 and VEGF-α as wound healing markers at gene expression level. Method: In this study, we used adipose tissue as the source of mesenchymal stem cells (MSCs) and differentiated MSCs into KLCs. KLCs were characterized and transferred to the burn areas on the dorsum of streptozotocine (STZ)-induced diabetic rats...
2018: BioImpacts: BI
https://www.readbyqxmd.com/read/29700554/platelet-rich-plasma-as-an-additional-therapeutic-option-for-infected-wounds-with-multi-drug-resistant-bacteria-in-vitro-antibacterial-activity-study
#5
Rıza Aytaç Çetinkaya, Ercan Yenilmez, Patrizio Petrone, Soner Yılmaz, Bayhan Bektöre, Berksan Şimsek, Tuğba Kula Atik, Mustafa Özyurt, Aytekin Ünlü
PURPOSE: Infected wounds, such as diabetic foot infections, are mostly polymicrobial and microorganisms have high resistance rates to antimicrobials. Infected wounds in diabetic patients have high cost, morbidity, and mortality rates. Based on these facts, there is a need for supportive localized treatment options such as platelet-rich plasma (PRP) implementations. Demonstrating the in vitro antimicrobial effect, our aim was to lead up to clinical trials of localized PRP implementations in infected wounds such as diabetic foot infections...
April 26, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29604139/preliminary-observations-of-a-new-approach-to-tissue-repair-periphearal-blood-mononuclear-cells-in-platelet-rich-plasma-injected-into-skin-graft-area
#6
Catuscia Orlandi, Elena Bondioli, Michela Venturi, Davide Melandri
Our purpose was accelerating the physiologic wound healing, stimulating tissue regeneration and the reparative tissue processes in resistant skin ulcers as in a case of an erosive lichen planus of the soles and after a surgical treatment as for severe Darier disease. The challenge was to establish an effective therapy to enhance tissue healing by the injection of a mixture of peripheral blood mononuclear cells (PB-MNCs) and platelet-rich plasma (PRP) into a skin autograft area. This new perioperative biotechnological approach enriches PRP with the effects of PB-MNCs...
March 31, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29556269/leukocyte-depletion-does-not-affect-the-in-vitro-healing-ability-of-platelet-rich-plasma
#7
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
https://www.readbyqxmd.com/read/29527422/cellular-prion-protein-and-%C3%AE-synuclein-overexpression-in-ls-174t-colorectal-cancer-cell-drives-endothelial-proliferation-to-differentiation-switch
#8
Sing-Hui Ong, Kai-Wey Goh, Cornelius Kwang-Lee Chieng, Yee-How Say
Background: Tumor-induced angiogenesis is an imperative event in pledging new vasculature for tumor metastasis. Since overexpression of neuronal proteins gamma-synuclein (γ-Syn) and cellular prion protein (PrPC ) is always detected in advanced stages of cancer diseases which involve metastasis, this study aimed to investigate whether γ-Syn or PrPC overexpression in colorectal adenocarcinoma, LS 174T cells affects angiogenesis of endothelial cells, EA.hy 926 (EA). Methods: EA cells were treated with conditioned media (CM) of LS 174T-γ-Syn or LS 174T-PrP, and their proliferation, invasion, migration, adhesion and ability to form angiogenic tubes were assessed using a range of biological assays...
2018: PeerJ
https://www.readbyqxmd.com/read/29511946/adipose-tissue-extract-shows-potential-for-wound-healing-in-vitro-proliferation-and-migration-of-cell-types-contributing-to-wound-healing-in-the-presence-of-adipose-tissue-preparation-and-platelet-rich-plasma
#9
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
https://www.readbyqxmd.com/read/29508105/decellularized-amnion-scaffold-with-activated-prp-a-new-paradigm-dressing-material-for-burn-wound-healing
#10
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
https://www.readbyqxmd.com/read/29504236/the-effect-of-mesenchymal-stem-cells-combined-with-platelet-rich-plasma-on-skin-wound-healing
#11
REVIEW
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
https://www.readbyqxmd.com/read/29486615/first-data-on-in-vitro-fertilization-and-blastocyst-formation-after-intraovarian-injection-of-calcium-gluconate-activated-autologous-platelet-rich-plasma
#12
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
https://www.readbyqxmd.com/read/29482651/effects-of-platelet-rich-plasma-on-the-activity-of-human-menstrual-blood-derived-stromal-cells-in-vitro
#13
Siwen Zhang, Pingping Li, Zhengwei Yuan, Jichun Tan
BACKGROUND: Human menstrual blood-derived stromal cells (MenSCs) are highly proliferative and show multiple differentiation capacity. The convenience and non-invasiveness make MenSC a novel cell source for regenerative medicine applications. Platelet-rich plasma (PRP) contains abundant growth factors which are beneficial to wound healing. However, the influence of PRP on MenSCs remains elusive. Here, we evaluated the role of PRP in MenSCs proliferation and assessed the effects of PRP on endometrial receptivity regulation in vitro...
February 26, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29457008/a-review-of-platelet-rich-plasma-history-biology-mechanism-of-action-and-classification
#14
REVIEW
Rubina Alves, Ramon Grimalt
Platelet-rich plasma (PRP) is currently used in different medical fields. The interest in the application of PRP in dermatology has recently increased. It is being used in several different applications as in tissue regeneration, wound healing, scar revision, skin rejuvenating effects, and alopecia. PRP is a biological product defined as a portion of the plasma fraction of autologous blood with a platelet concentration above the baseline. It is obtained from the blood of patients collected before centrifugation...
January 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29457005/effectiveness-of-platelet-rich-plasma-for-androgenetic-alopecia-a-review-of-the-literature
#15
REVIEW
Jessica Cervantes, Marina Perper, Lulu L Wong, Ariel E Eber, Alexandra C Villasante Fricke, Tongyu Cao Wikramanayake, Joaquin J Jimenez
Androgenetic alopecia (AGA) is a hair loss disorder affecting 80% of men and 50% of women throughout their lifetime. Therapies for AGA are limited and there is no cure. There is a high demand for hair restoration. Platelet-rich plasma (PRP), a treatment modality shown to promote wound healing, has also been explored as a treatment for AGA. This literature review was conducted to assess the effectiveness of PRP treatment for AGA. Twelve studies conducted from 2011 to 2017 were evaluated and summarized by study characteristics, mode of preparation, and treatment protocols...
January 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29451945/the-effects-of-platelet-rich-plasma-and-activated-collagen-on-wound-healing-in-primary-total-joint-arthroplasty
#16
David C Evans, Bruce G Evans
Wound healing remains a concern in primary total joint arthroplasty, given the risk of deep infections arising from hematomas, wound separations, and superficial infections. If wound additives can prevent these early complications, their universal application would be cost-effective. This study examined whether 2 wound additives, platelet-rich plasma (PRP) and activated collagen, would improve postoperative wound healing and reduce complications in primary total joint arthroplasty. A prospective, randomized controlled study was conducted using 3 cohorts with 30 patients each (group 1: PRP; group 2: activated collagen; and group 3: control)...
March 1, 2018: Orthopedics
https://www.readbyqxmd.com/read/29442539/platelets-in-wound-healing-and-regenerative-medicine
#17
Julia Etulain
Although platelets are widely recognized as having a critical role in primary hemostasis and thrombosis, increasing experimental and clinical evidence identifies these enucleated cells as relevant modulators of other physiopathological processes including inflammation and tissue regeneration. These phenomena are mediated through the release of growth factors, cytokines, and extracellular matrix modulators that sequentially promote (i) revascularization of damaged tissue through the induction of migration, proliferation, differentiation, and stabilization of endothelial cells in new blood vessels; (ii) restoration of damaged connective tissue through migration, proliferation, and activation of fibroblasts; and (iii) proliferation and differentiation of mesenchymal stem cells into tissue-specific cell types...
February 14, 2018: Platelets
https://www.readbyqxmd.com/read/29404863/in-vitro-evidence-that-platelet-rich-plasma-stimulates-cellular-processes-involved-in-endometrial-regeneration
#18
Lusine Aghajanova, Sahar Houshdaran, Shaina Balayan, Evelina Manvelyan, Juan C Irwin, Heather G Huddleston, Linda C Giudice
PURPOSE: The study aims to test the hypothesis that platelet-rich plasma (PRP) stimulates cellular processes involved in endometrial regeneration relevant to clinical management of poor endometrial growth or intrauterine scarring. METHODS: Human endometrial stromal fibroblasts (eSF), endometrial mesenchymal stem cells (eMSC), bone marrow-derived mesenchymal stem cells (BM-MSC), and Ishikawa endometrial adenocarcinoma cells (IC) were cultured with/without 5% activated (a) PRP, non-activated (na) PRP, aPPP (platelet-poor-plasma), and naPPP...
February 5, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29380387/platelet-sequestration-with-a-new-generation-autotransfusion-device
#19
Timo F Seyfried, Fabian Streithoff, Michael Gruber, Christoph Unterbuchner, Nina Zech, Martin Kieninger, Ernil Hansen
BACKGROUND: Autologous platelet-rich plasma (PRP) can be used either to prevent platelets (PLTs) from lesions during extracorporeal circulation or for wound therapy, when processed into PLT gel. The aim of this study was to evaluate the PLT sequestration abilities of a new-generation autotransfusion device. STUDY DESIGN AND METHODS: In this experimental study the discontinuous, new-generation autotransfusion device XTRA was evaluated using fresh donor blood. The blood was processed in four different size bowls (X55, X125, X175, X225 [bowls' size in mL]) using the device's built-in "PLT sequestration program...
April 2018: Transfusion
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
#20
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
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