Influence of Platelet-Derived Growth Factor-AB on Tissue Development in Autologous Platelet-Rich Plasma Gels

2011 ◽  
Vol 17 (13-14) ◽  
pp. 1891-1899 ◽  
Author(s):  
Simone Wirz ◽  
Maren Dietrich ◽  
Thomas C. Flanagan ◽  
Gudrun Bokermann ◽  
Wolfgang Wagner ◽  
...  
Author(s):  
Wafaa A. Abaid ◽  
◽  
Manal T. Al-Obaidi ◽  
Muayad S. Abood ◽  
◽  
...  

Despite developments in assisted reproductive technology, there is immaterial progress in the implantation and pregnancy rates. Intrauterine infusion (IUIF) of autologous platelet-rich plasma (PRP) might renew implantation rates through its paracrine properties by progression cytokines and growth factors which favor implantation. Here we determine whether the IUIF of autologous PRP had a role in pregnancy outcome through its outcome on epidermal growth factor and endometrial thickness. An overall of 43 patients where prospectively randomly dispersed into two groups subjected to a superovulation program using Letrozole® tablet orally 2.5 mg twice daily 12 hours apart from day 2 for 5 days for one cycle. 20 women were considered as control receiving the conventional intrauterine insemination (IUI) management while 23 of them were given PRP by IUIF on the day of human chorionic gonadotrophin injection. The IUI was done for both groups 36-48 hours after confirming ovulation. The blood samples were collected from both groups on the day of IUI for the valuation of epidermal growth factor and an ultrasound was done on the day of human chorionic gonadotrophin injection and day of IUI for assessment of endometrial thickness. The mean endometrial thickness in the PRP group at the day of IUI was significantly thicker than that of the control group and the difference in percentage change of endometrial thickness between PRP group and controls significantly higher in PRP group. The mean epidermal growth factor and the pregnancy rate were significantly superior in the PRP group than that of controls. In conclusion, autologous PRP IUIF was well-tolerated and resulted in a significant expansion in endometrial thickness, epidermal growth factor Level and, subsequent pregnancy rate in an infertile woman undergoing IUI.


Biomedicine ◽  
2021 ◽  
Vol 41 (2) ◽  
pp. 409-412
Author(s):  
Karina Karina ◽  
Krista Ekaputri ◽  
Johannes Albert Biben ◽  
Imam Rosadi ◽  
Iis Rosliana ◽  
...  

Introduction and Aim: Activated autologous platelet-rich plasma (aaPRP) is becoming a popular therapy to accelerate healing in the field of plastic surgery. Platelets, which are abundant in aaPRP, can release many growth factors including platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF). This study aims to examine the plasma levels of PDGF and VEGF in healthy subjects after intravenous administration of aaPRP.   Materials and Methods: Nine healthy patients with no prior history of metabolic disease were divided into two groups (control and experiment group). The treatment group which consists of six patients received intravenous aaPRP treatment. The preparation of aaPRP starts with the collection of 24 mL of whole blood in sodium citrate tubes followed a two-step centrifugation procedure and subsequent chemical activation. aaPRP was then administered intravenously to patients. Meanwhile, the control group received no intervention. Venous blood samples were taken before and one week after the treatment and the plasma PDGF and VEGF levels were determined by enzyme-linked immunosorbent assay (ELISA).   Results: The treatment group showed statistically significant increase in VEGF after 7 days compared to before aaPRP administration. However, the change in PDGF levels of the treatment group was unnotable.   Conclusion: The present findings indicate that intravenous administrations of activated aaPRP may increase plasma VEGF level up to 1 week after aaPRP administration.


Author(s):  
Nitika S. Deshmukh ◽  
Vasudha A. Belgaumkar ◽  
Sunil N. Tolat ◽  
R. B. Chavan ◽  
Chirag J. Vamja

<p class="abstract"><strong>Background:</strong> Platelet rich plasma (PRP) helps tissue re-modulation by its growth factors (GFs)– platelet derived growth factor (PDGF), transforming growth factor (TGF-β), epidermal growth factor (EGF), fibroblast growth factor (FGF-2), insulin-like growth factor (IGF). These GFs aid healing by attracting undifferentiated stem cells into newly formed matrix and triggering cell division; by promoting capillary growth and by attracting macrophages to improve tissue healing and regeneration.<strong> </strong>The aims and objectives of the study were to assess reduction in wound size of chronic non-healing ulcers by autologous platelet rich plasma and to evaluate the safety of autologous platelet rich plasma in treatment of chronic non healing ulcers.</p><p class="abstract"><strong>Methods:</strong> This was an experimental study conducted on ten patients of chronic non-healing ulcers of varied etiology. Autologous PRP was freshly prepared using 10 ml of patient’s own blood by differential centrifugation process and injected at the margins and base of each ulcer. Four such sittings were administered at weekly intervals for four weeks with a post-treatment follow-up period of one month. Total duration of our study was 8 weeks. Objective assessment of ulcer size was done using centimetre scale and documented by digital photographs.<strong></strong></p><p class="abstract"><strong>Results:</strong> While 40% of chronic ulcers healed completely, the remaining 60% cases showed signs of healing at the end of 8 weeks. Mean improvement in ulcer size was 69.38% over a period of 8 weeks. No side effect was encountered in any of our cases.</p><p><strong>Conclusions:</strong> Platelet rich plasma hastened the healing process of chronic non-healing ulcers. Being autologous, it has rare chances of hypersensitivity reactions. </p>


Author(s):  
Dennis Vaidakis ◽  
Eleni Sertedaki ◽  
Vasilios Karageorgiou ◽  
Charalampos S Siristatidis

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