scholarly journals Optimal double-spin method for maximizing the concentration of platelets in equine platelet-rich plasma

2020 ◽  
Vol 31 (4) ◽  
pp. 105-111
Author(s):  
Kentaro FUKUDA ◽  
Atsutoshi KUWANO ◽  
Taisuke KURODA ◽  
Norihisa TAMURA ◽  
Hiroshi MITA ◽  
...  
Keyword(s):  
Platelet Rich Plasma ◽  
Double Spin

Comparison of efficacy of topical 5% minoxidil alone versus topical 5% minoxidil with autologous Platelet Rich Plasma (PRP) therapy in treatment of androgenetic alopecia: A randomised open label study

2021 ◽  
Vol 7 (2) ◽  
pp. 107-114
Author(s):  
Bela Padhiar ◽  
Sruthy Raveendran
Keyword(s):  
Platelet Rich Plasma ◽  
Androgenetic Alopecia ◽  
Androgenic Alopecia ◽  
Open Label ◽  
Hair Density ◽  
Convenience Sample ◽  
Double Spin ◽  
Autologous Platelet Rich Plasma ◽  
Group B ◽  
Autologous Platelet

Androgenic alopecia (AGA) is a type of progressive hairloss, where there is androgen mediated conversion of susceptible terminal hairs into vellus hairs, in genetically predisposed individuals. To compare efficacy of Topical 5% Minoxidil alone versus Topical 5% Minoxidil with Autologous Platelet Rich Plasma (PRP) therapy in patients with Androgenetic Alopecia.This is aProspective study conducted in Department of Dermatology GMERS Medical College, Gandhinagar, Gujarat. A convenience sample of 62 men in the age group of 20-40 with Grade 2-5 AGA according to Hamilton- Norwood Grading were selected and was divided into 2 groups of 31 each. Presitting digital photographs and dermoscopic photos were taken. Autologous PRP was prepared using 18 ml of patients blood after double spin centrifugation and injected by Nappage technique. Results were assessed at the baseline and at the end of each sitting on the basis of change in hair density, photographic evaluation and patient’s self satisfaction. Highly significant increase in hair density was achieved after 4 months of treatment. At T4 (Fourth Session of treatment) Group B showed higher hair density (42.97± 8.96) as compared to Group A (36.94 ± 11.57) which was statistically significant at P = 0.03Group B showed better improvement as compared to Group A.PRP treatment has a positive therapeutic effect on male Androgenetic alopecia without major side effects.

A Split Scalp Study of Single versus Double Spin Platelet-rich plasma Injections in Treatment of Female Pattern Hair Loss: Clinical Effect and Relation to Vascular Endothelial Growth Factor in PRP

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Samar A Salem ◽  
Rania M Elhusseiny ◽  
Haitham M Saleh
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Hair Loss ◽  
Platelet Rich Plasma ◽  
Intradermal Injection ◽  
Vascular Endothelial ◽  
Single Spin ◽  
Double Spin ◽  
Female Pattern Hair Loss ◽  
The Right ◽  
Endothelial Growth Factor

Abstract Background Female pattern hair loss (FPHL) is the most common hair loss disorder in women. Platelet-rich plasma (PRP) provides an option for patients recalcitrant to the currently approved therapies. As there are many methods for the preparation of PRP, the most suitable for AGA therapy is not yet clear. Aims To compare the efficacy between single and double spin PRP injections in treatment of FPHL and to assess the relationship between the concentrations of vascular endothelial growth factor (VEGF) in the PRP preparation and the treatment results obtained. Patients and Methods 15 female patients with FPHL were enrolled. Each patient was subjected to intradermal injection of PRP (prepared by double-spin method) into the right half of the scalp, in addition to intradermal injection of PRP (prepared by singlespin method) into the left half of the scalp in the form of three treatment sessions three weeks apart. Evaluation of treatment response was done through comparing patients' global photographs, assessment of patients' satisfaction and folliscopic assessment before and after treatment. Results Our results showed clinically significant improvement by comparing patients' photographs in most of the treated patients. In addition, folliscopy revealed significant change of the terminal hair density in the right half of the scalp following treatment sessions.VEGF concentration didn't differ significantly between double-spin and single-spin prepared PRP, also it didn't differ significantly upon calcium activation. Conclusions PRP is an effective treatment modality for FPHL. Double-spin prepared PRP could yield better results in the treatment of FPHL than the single-spin method. However, adding Calcium gluconate prior to PRP injection is of no benefit as it didn't significantly increase the release of VEGF. Yet, further studies discussing different PRP preparation protocols and involving a larger number of cases are needed to minimize statistical errors and to detect the most accurate PRP preparation method with the greatest yield of growth factors.

scholarly journals A Simple Double-Spin Closed Method for Preparing Platelet-Rich Plasma

Cureus ◽  
2022 ◽  
Author(s):  
Edilson S Machado ◽  
Fabiano P Soares ◽  
Roberta S Yamaguchi ◽  
William K Felipone ◽  
Robert Meves ◽  
...  
Keyword(s):  
Platelet Rich Plasma ◽  
Double Spin

scholarly journals Effect of intralesional platelet rich plasma in chronic localized vitiligo

2018 ◽  
Vol 4 (4) ◽  
pp. 550 ◽  
Author(s):  
Rashmi Mahajan ◽  
Kishan Ninama ◽  
Hinal Shah ◽  
Freny Bilimoria
Keyword(s):  
Platelet Rich Plasma ◽  
Topical Therapy ◽  
Calcineurin Inhibitors ◽  
Severity Index ◽  
Response To Treatment ◽  
Double Spin ◽  
Systemic Corticosteroids ◽  
Intralesional Injections ◽  
Autologous Platelet Rich Plasma ◽  
Destruction Of Melanocytes

<p class="abstract"><strong>Background:</strong> Vitiligo is a disease caused by destruction of melanocytes in lesional skin. It occurs worldwide in occurance of 0.1 to 2.0 percent. It is a multifactorial polygenic disease with complex pathogenesis. Several treatments, old and new are advocated for such patients. The first line of treatment includes topical corticosteroids and calcineurin inhibitors, and phototherapy (NBUVB, PUVA). The second line of treatment includes systemic corticosteroids, topical calcipotriol 0.005%, lasers such as excimer laser (308 nm).  The aim of the study was to evaluate the efficacy of platelet rich plasma in 40 cases of stable vitiligo with less than or equal to 1% body surface area involvement.</p><p class="abstract"><strong>Methods:</strong> 40 cases of stable vitiligo not responding to adequate topical therapy for more than 1 year were included in the study. They were subjected to intralesional injections of freshly prepared autologous platelet rich plasma (PRP) by double spin technique. Each patient was given injections every 2 weekly interwals for a total of 6 injections. Results were evaluated using the vitiligo area severity index (VASI) score.<strong></strong></p><p class="abstract"><strong>Results:</strong> Out of 40 patients15 Patients showed good response, 12 patients showed Average response and13 patients showed no response to treatment according to VASI score.</p><p class="abstract"><strong>Conclusions:</strong> PRP may be considered as an additional therapy in patients not responding adequately to traditional therapies. Our patients were not subjected to histopathology. It was also felt that patients might require more than 6 sittings for complete repigmentation.</p>

scholarly journals A randomized, double blind, placebo controlled, split patch study to evaluate the effects of platelet rich plasma on alopecia areata

2018 ◽  
Vol 6 (8) ◽  
pp. 2696
Author(s):  
Bushra Khan ◽  
Ramesh Sharma ◽  
Milind A. Borkar
Keyword(s):  
Alopecia Areata ◽  
Small Volume ◽  
Platelet Rich Plasma ◽  
Patch Area ◽  
Self Assessment ◽  
Double Blind ◽  
Double Spin ◽  
Gradual Loss ◽  
Normal Hair ◽  
Patient Self Assessment

Background: Alopecia Areata is a T-cell–mediated autoimmune, often reversible disease in which the gradual loss of protection provided by immune privilege of the normal hair follicle plays an important role. It manifests as smooth, slightly erythematous (peach color) or normal-colored alopecic patches with short broken hair at the margins. It involves scalp most commonly, although other regions of body may be affected. Platelet rich plasma is an autologous concentration of platelets with a greater count in a small volume of plasma. Study aimed to evaluate the safety and efficacy of PRP therapy in Alopecia Areata.Methods: In this randomised, placebo controlled, split patch study, 30 patients of AA were recruited and injected with 1-1.5ml of autologous PRP made by double spin method into half the bald patch area and other half with placebo using insulin syringe once a month for 3 months. Outcome was assessed at the end of study by clinical photographs as regrowth of hair, dermoscopy findings as reduction in black dots, yellow dots and exclamation hair and Physician and patient self-assessment score.Results: Administration of autologous PRP has led to observable improvement in 20% case of PRP and only 3.3% of control cases. Decrease in number of dystrophic hair and hair regrowth with PRP was seen in 20% cases and in 17% patches.Conclusions: PRP in our setting was found to be minimally effective, but more efficacious than no treatment, and safe for AA patients.

Safety and Efficacy of Intra-articular Injection of Platelet-Rich Plasma in Patients With Ankle Osteoarthritis

2017 ◽  
Vol 38 (6) ◽  
pp. 596-604 ◽  
Author(s):  
Taisuke Fukawa ◽  
Satoshi Yamaguchi ◽  
Yorikazu Akatsu ◽  
Yohei Yamamoto ◽  
Ryuichiro Akagi ◽  
...  
Keyword(s):  
Adverse Effects ◽  
Early Stage ◽  
Platelet Rich Plasma ◽  
Case Series ◽  
Level Of Evidence ◽  
Safety And Efficacy ◽  
Double Spin ◽  
Scale Scores ◽  
Ultrasonographic Guidance

Background: An intra-articular injection of platelet-rich plasma (PRP) may be an effective treatment for osteoarthritis (OA). However, its efficacy in ankle OA has not been investigated yet. The purpose of this study was to assess the safety and efficacy of an intra-articular injection of PRP in patients with ankle OA during a 24-week period. Methods: Twenty ankles of 20 patients with varus-type ankle OA who received intra-articular injections of PRP were evaluated. PRP was extracted from whole blood by using the double-spin technique. Three injections of 2-mL PRP were administered to the ankle at an interval of 2 weeks under ultrasonographic guidance. Adverse events and efficacy were assessed at 4, 12, and 24 weeks after the last injection. Clinical outcomes were assessed by using the visual analog scale (VAS) for pain, the Japanese Society for Surgery of the Foot (JSSF) ankle/hindfoot scale, and the Self-Administered Foot Evaluation Questionnaire (SAFE-Q). Results: No serious adverse effects were observed during the follow-up period. The VAS and JSSF scale scores significantly decreased from baseline to 4, 12, and 24 weeks after treatment ( P < .001). The mean score in the pain-related subscale of the SAFE-Q significantly improved from baseline to 12 weeks after treatment ( P = .04). Overall, the amount of pain reduction was maximal at 12 weeks after the last injection, and the effect was reduced at 24 weeks. The patients with late-stage OA had worse scores in all outcomes than those with early-stage OA. Conclusion: Intra-articular injections of PRP resulted in no serious adverse effects and significantly reduced pain in the patients with ankle OA. PRP treatment can be safe and effective and may be an option in the treatment of ankle OA. Level of Evidence: Level IV, case series.

scholarly journals Comparison of Two Preparation Methods for Platelet-Rich Plasma Eye Drops for Release of Growth Factors and De-Epithelization Rabbit Model

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Tatsuhiko Kobayashi ◽  
Takashi Suzuki ◽  
Tomohiko Saito ◽  
Takashi Itokawa ◽  
Yuichi Hori
Keyword(s):  
Growth Factors ◽  
Corneal Epithelium ◽  
Platelet Rich Plasma ◽  
Rabbit Model ◽  
Corneal Stroma ◽  
Cell Junctions ◽  
Eye Drops ◽  
Preparation Methods ◽  
Double Spin ◽  
Epithelium Thickness

Purpose. To compare two platelet-rich plasma (PRP) preparation methods (double spin (D-PRP) and TriCell PRP (T-PRP)) for eye drops, concentration yields of platelets and other cells, release of growth factors, and efficacy of the de-epithelization rabbit model. Methods. PRP was extracted by D-PRP and T-PRP from 30 ml blood from healthy adults. After extraction, platelets and leukocytes were counted. D-PRP and T-PRP were preserved during A: 1 h storage at room temperature, B: 1 h storage at −20°C, C: 24 h storage at 4°C, and D: 24 h storage at −20°C. Platelet-derived growth factor (PDGF) was measured. Freezing/thawing PRP eye drops and control were instilled in the de-epithelization rabbit model four times per day for 5 days. Histology was compared between eyes treated with control, D-PRP, and T-PRP. Results. 14 ml of D-PRP and 4 ml of T-PRP were extracted from 30 ml whole blood samples. D-PRP and T-PRP had 41.36 ± 8.43 × 104 and 67.02 ± 13.55 × 104 platelets and 0.41 ± 0.24 × 103/ml and 10.09 ± 4.29 × 103/ml leucocytes, respectively. In the four storage methods, PDGF concentrations in T-PRP were higher than those in D-PRP eye drops. Freezing/thawing D-PRP and T-PRP increased PDGF concentrations. Histology showed corneal epithelium thickness in T-PRP-treated eyes after healing (38.41 ± 9.10 μm) was significantly higher than that in control-treated (27.77 ± 4.76 μm) and D-PRP-treated eyes (18.32 ± 3.14 μm) ( P  < 0.05). There was no corneal damage with inflammation in corneal stroma and epithelium of all tested groups. Electron microscopy revealed strong adhesion between cell junctions in T-PRP-treated eyes. Conclusions. Freezing/thawing of PRP extracted with the T-PRP kit may result in high platelet and leukocyte concentration and produce high PDGF concentration. PRP eye drops including leucocytes could increase thickness of corneal epithelium without corneal inflammation.

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