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https://www.readbyqxmd.com/read/28615133/platelet-rich-plasma-with-keratinocytes-and-fibroblasts-enhance-healing-of-full-thickness-wounds
#1
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/28596670/growth-factor-variation-in-two-types-of-autologous-platelet-biomaterials-prp-versus-prf
#2
Satyam Arora, Urvershi Kotwal, Mitu Dogra, Veena Doda
Autologous platelet biomaterials represent a key source of cytokines and growth factors extensively used for clinical and surgical applications involving tissue regeneration; wound healing and tissue repair. In this communication we discuss the growth factors released by activated platelet rich plasma (PRP) and platelet rich fibrin (PRF) releasate. Our study highlights that significantly higher growth factors (TGF-ß1) are released by activated PRP as compared to releasate of PRF. The various growth factors released by both platelet products are significantly higher than the baseline concentration in the whole blood and have different bio-mechanism hence should be individualized as per the clinical indication...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28587666/protocol-for-a-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
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/28578703/effects-of-platelet-rich-plasma-prp-on-human-gingival-fibroblast-osteoblast-and-periodontal-ligament-cell-behaviour
#4
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/28573093/hydrogel-and-platelet-rich-plasma-combined-treatment-to-accelerate-wound-healing-in-a-nude-mouse-model
#5
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/28501713/an-in-situ-photocrosslinkable-platelet-rich-plasma-complexed-hydrogel-glue-with-growth-factor-controlled-release-ability-to-promote-cartilage-defect-repair
#6
Xiaolin Liu, Yunlong Yang, Xin Niu, Qiuning Lin, Bizeng Zhao, Yang Wang, Linyong Zhu
The repair of articular cartilage injury is a great clinical challenge. Platelet-rich plasma (PRP) has attracted much attention for the repair of articular cartilage injury, because it contains various growth factors that are beneficial for wound repair. However, current administration methods of PRP face many shortcomings, such as unstable biological fixation and burst release of growth factors, all of which will bring troubles to its application in the repair of articular cartilage and compromise its therapeutic efficacy...
May 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28468229/effects-of-the-autologous-platelet-rich-plasma-in-nasal-pack-on-postoperative-quality-of-life
#7
Ihsan Kuzucu, Guclu Kaan Beriat, Hande Ezerarslan, Sedat Ozdemir, Sinan Kocaturk
AIM: The authors aimed to research the effects of autologous platelet-rich plasma, which is known for the positive effects on wound healing, on postoperatif living quality of the patients after using on nasal surgery. METHODS: Patients who undergo nasal operation according to randomized patient's choice have been injected with saline merocel pack and platelet-rich plasma (PRP) in their nasal path. Postoperative is followed by 1 month; Nose Obstruction Symptom Evaluation (NOSE) scala score, bleeding, pain, and crust rate have been compared between 2 groups...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28450960/feasibility-of-improving-platelet-rich-plasma-therapy-by-using-chitosan-with-high-platelet-activation-ability
#8
Hidemi Hattori, Masayuki Ishihara
Platelet-rich plasma (PRP) is blood plasma containing a high number of platelets that release growth factors for wound healing and tissue regeneration. In the present study, the feasibility of improving PRP therapy by using chitosan that exhibits high platelet activation ability was investigated. A total of 13 chitosan samples with different molecular weight (Mw) and degree of deacetylation (DDA) were individually added to blood samples of rats and the amount of growth factors, albumin and fibrinogen in plasma was measured...
March 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28450316/the-combined-use-of-kartogenin-and-platelet-rich-plasma-promotes-fibrocartilage-formation-in-the-wounded-rat-achilles-tendon-entheses
#9
J Zhang, T Yuan, N Zheng, Y Zhou, M V Hogan, J H-C Wang
OBJECTIVES: After an injury, the biological reattachment of tendon to bone is a challenge because healing takes place between a soft (tendon) and a hard (bone) tissue. Even after healing, the transition zone in the enthesis is not completely regenerated, making it susceptible to re-injury. In this study, we aimed to regenerate Achilles tendon entheses (ATEs) in wounded rats using a combination of kartogenin (KGN) and platelet-rich plasma (PRP). METHODS: Wounds created in rat ATEs were given three different treatments: kartogenin platelet-rich plasma (KGN-PRP); PRP; or saline (control), followed by histological and immunochemical analyses, and mechanical testing of the rat ATEs after three months of healing...
April 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28375976/advancing-keloid-treatment-a-novel-multimodal-approach-to-ear-keloids
#10
Michael E Jones, Jennifer McLane, Rachael Adenegan, JoAnne Lee, Christine A Ganzer
BACKGROUND/OBJECTIVE: Management of keloids of the pinna, in particular, those located in the helix and antihelix and lobule that occur as complications of ear piercing. MATERIALS AND METHODS: Retrospective analysis of 49 patients treated with extralesional surgical excision of keloids localized to the ear followed by the application of autologous platelet-rich plasma (PRP) to wound site and postoperative in-office superficial radiation therapy (SRT). Radiation protocol consisted of 1 to 3 fractions, with cumulative dosage ranging from 1,300 to 1,800 cGy...
April 3, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28355770/-effects-and-mechanism-of-allogeneic-platelet-rich-plasma-on-collagen-synthesis-in-wound-healing
#11
F C Chen, M C Chen, T T Yan, J J Hou, J G Yang
Objective: To investigate the effects and mechanism of allogeneic platelet rich plasma (PRP) on collagen in wound surface at different time. Methods: A total of 50 clean 7-week rats were selected for this study, including 10 rats for platelet-rich blood plasma preparation, 20 rats for PRP group and 20 rats for control group, 0.1 ml allogenic PRP and 0.1 ml saline were smeared respectively on wound surfaces of PRP and control group, wound regeneration and healing were examined. Cellular and histological morphology alteration was observed via Masson staining, type Ⅰ and type Ⅲ collagen protein and mRNA expression level were detected by Western blot and real-time PCR...
April 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28351189/effects-of-an-injectable-platelet-rich-fibrin-on-osteoblast-behavior-and-bone-tissue-formation-in-comparison-to-platelet-rich-plasma
#12
Xuzhu Wang, Yufeng Zhang, Joseph Choukroun, Shahram Ghanaati, Richard J Miron
Platelet-rich plasma (PRP) has been utilized for many years as a regenerative agent capable of inducing vascularization of various tissues using blood-derived growth factors. Despite this, drawbacks mostly related to the additional use of anti-coagulants found in PRP have been shown to inhibit the wound healing process. For these reasons, a novel platelet concentrate has recently been developed with no additives by utilizing lower centrifugation speeds. The purpose of this study was therefore to investigate osteoblast behavior of this novel therapy (injectable-platelet-rich fibrin; i-PRF, 100% natural with no additives) when compared to traditional PRP...
March 29, 2017: Platelets
https://www.readbyqxmd.com/read/28315407/controlled-delivery-of-platelet-derived-proteins-enhances-porcine-wound-healing
#13
Daniel W Long, Noah R Johnson, Eric M Jeffries, Hidetaka Hara, Yadong Wang
Platelet-rich plasma (PRP) is widely used for many clinical indications including wound healing due to the high concentrations of growth factors. However, the short half-life of these therapeutic proteins requires multiple large doses, and their efficacy is highly debated among clinicians. Here we report a method of protecting these proteins and releasing them in a controlled manner via a heparin-based coacervate delivery vehicle to improve wound healing in a porcine model. Platelet-derived proteins incorporated into the coacervate were protected and slowly released over 3weeks in vitro...
May 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28271918/platelet-rich-plasma-for-treatment-of-non-scarring-hair-loss-systematic-review-of-literature
#14
Azin Ayatollahi, Hamed Hosseini, Jaleh Gholami, Babak Mirminachi, FaridHossein Firooz, Alireza Firooz
BACKGROUND: Although there are many studies showing the role of platelet rich plasma (PRP) in bone grafts, teeth osteosynthesis, and wound healing, there have been little peer reviewed studies about the safety and efficacy of PRP application in the treatment of hair loss. MATERIALS AND METHODS: In this systematic review, we searched Ovid Medline, Scopus and Web of Knowledge till November 2015 for human studies evaluating the efficacy of PRP for the treatment of non-cicatricial alopecia...
March 23, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28246352/evaluation-of-subcutaneous-infiltration-of-autologous-platelet-rich-plasma-on-skin-wound-healing-in-dogs
#15
Haithem A Farghali, Naglaa A AbdElKader, Marwa S Khattab, Huda O Abubakr
Background: Platelet-rich plasma (PRP) is known to be rich in growth factors and cytokines which are crucial to the healing process. Objective: Studying the effect of subcutaneous infiltration of autologous PRP at the wound boundaries on wound epithelization and contraction. Material and Methods: Five adult male mongrel dogs were used. Bilateral acute full-thickness skin wounds (3cm diameter) were created on the thorax symmetrically. Right side wounds were subcutaneously infiltrated with activated PRP at day zero then every week for three consecutive weeks...
February 28, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28241824/treatment-of-chronic-non-healing-ulcers-using-autologous-platelet-rich-plasma-a-case-series
#16
Manish Suthar, Saniya Gupta, Suhail Bukhari, Venkatesh Ponemone
BACKGROUND: Non-healing ulcers are a major health problem worldwide and have great impact at personal, professional and social levels, with high cost in terms of human and material resources. Recalcitrant non-healing ulcers are inevitable and detrimental to the lower limb and are a major cause of non-traumatic lower limb amputations. Application of autologous Platelet Rich Plasma (PRP) has been a major breakthrough for the treatment of non-healing and diabetic foot ulcers, as it is an easy and cost-effective method, and provides the necessary growth factors that enhance tissue healing...
February 27, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28178104/effects-of-the-autologous-platelet-rich-plasma-in-nasal-pack-on-postoperative-quality-of-life
#17
Ihsan Kuzucu, Guclu Kaan Beriat, Hande Ezerarslan, Sedat Ozdemir, Sinan Kocaturk
AIM: The authors aimed to research the effects of autologous platelet-rich plasma, which is known for the positive effects on wound healing, on postoperatif living quality of the patients after using on nasal surgery. METHODS: Patients who undergo nasal operation according to randomized patient's choice have been injected with saline merocel pack and platelet-rich plasma (PRP) in their nasal path. Postoperative is followed by 1 month; Nose Obstruction Symptom Evaluation (NOSE) scala score, bleeding, pain, and crust rate have been compared between 2 groups...
February 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28168420/immediate-post-extraction-implants-with-or-without-pure-platelet-rich-plasma-a-5-year-follow-up-study
#18
Silvio Taschieri, Alessandra Lolato, Moses Ofer, Tiziano Testori, Luca Francetti, Massimo Del Fabbro
PURPOSE: The purpose of this study was comparison of clinical and radiographic outcomes of immediate post-extraction implants with or without the use of pure platelet-rich plasma (P-PRP) in the short- and medium-term follow-up. METHODS: A retrospective analysis was performed to assess soft tissue healing, implant and prosthesis survival, marginal bone level changes and biological complications. RESULTS: A total of 109 partially edentulous patients with 126 implants were included in this analysis...
June 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28154995/injectable-platelet-rich-fibrin-i-prf-opportunities-in-regenerative-dentistry
#19
Richard J Miron, Masako Fujioka-Kobayashi, Maria Hernandez, Umadevi Kandalam, Yufeng Zhang, Shahram Ghanaati, Joseph Choukroun
OBJECTIVES: Platelet rich plasma (PRP) has been utilized in regenerative dentistry as a supra-physiological concentrate of autologous growth factors capable of stimulating tissue regeneration. Despite this, concerns have been expressed regarding the use of anti-coagulants, agents known to inhibit wound healing. In this study, a liquid formulation of platelet rich fibrin (PRF) termed injectable-PRF (i-PRF) without the use of anti-coagulants was investigated. MATERIALS AND METHODS: Standard PRP and i-PRF (centrifuged at 700 rpm (60G) for 3 min) were compared for growth factor release up to 10 days (8 donor samples)...
February 2, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28119114/evaluation-of-platelet-rich-plasma-gel-potential-in-acceleration-of-wound-healing-duration-in-patients-underwent-pilonidal-sinus-surgery-a-randomized-controlled-parallel-clinical-trial
#20
Saeed Mohammadi, Shirzad Nasiri, Mohammad Hossein Mohammadi, Ashraf Malek Mohammadi, Mohsen Nikbakht, Mahdi Zahed Panah, Hiva Safar, Shayan Mostafaei, Amir Hossein Norooznezhad, Ahmad Reza Soroosh, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
OBJECTIVES: One of the most important surgical issues applied in the treatment of pilonidal sinus disease is wound healing. The aim of this study was to investigate the possible effect of platelet-rich plasma (PRP) gel on accelerating wound healing in these patients. METHODS: In this randomized, controlled, parallel group clinical trial, 110 patients were randomly allocated into two parallel groups with the same size (controls and treatment arm) after meeting inclusion and exclusion criteria...
April 2017: Transfusion and Apheresis Science
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