Effect of platelet‐rich plasma on the outcome of mini punch grafting procedure in localized stable vitiligo: clinical evaluation and relation to lesional basic fibroblast growth factor

2021 ◽  
Author(s):  
Samar Abdallah M. Salem ◽  
Tabarek Abdulkhaleq Fezeaa ◽  
Nashwa El Khazragy ◽  
Marwa Y. Soltan
2016 ◽  
Vol 137 (6) ◽  
pp. 1048e-1049e ◽  
Author(s):  
Barbara Hersant ◽  
Jeremy Niddam ◽  
Frederic Picard ◽  
Jonathan Bouhassira ◽  
Simone la Padula ◽  
...  

2015 ◽  
Vol 136 (5) ◽  
pp. 931-939 ◽  
Author(s):  
Tatsuro Kamakura ◽  
Jiro Kataoka ◽  
Kazuhiko Maeda ◽  
Hideaki Teramachi ◽  
Hisayuki Mihara ◽  
...  

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Takeshi Kataoka ◽  
Yutaka Mifune ◽  
Atsuyuki Inui ◽  
Hanako Nishimoto ◽  
Takashi Kurosawa ◽  
...  

Abstract Introduction Excellent outcomes of arthroscopic rotator cuff repair for small and medium tears have been recently reported. However, re-tears after surgery have been a common complication after surgical repair of large and massive rotator cuff tears and often occur in early postoperative phase. It was previously reported that basic fibroblast growth factor and platelet-rich plasma enhanced rotator cuff tear healing. We hypothesized that this combined therapy could enhance rotator cuff healing after rotator cuff repair in a rat model. This study aimed to evaluate the efficacy of combined therapy of platelet-rich plasma and basic fibroblast growth factor with gelatin-hydrogel sheet. Methods To create a rotator cuff defect, the infraspinatus tendon of Sprague Dawley rat was resected from the greater tuberosity. The infraspinatus tendons were repaired and covered with gelatin-hydrogel sheet impregnated with PBS (control group), basic fibroblast growth factor (bFGF group), platelet-rich plasma (PRP group), or both basic fibroblast growth factor and platelet-rich plasma (combined group). Histological examinations were conducted using hematoxylin and eosin, safranin O, and immunofluorescence staining, such as Isolectin B4, type II collagen at 2 weeks postoperatively. For mechanical analysis, ultimate failure load of the tendon-humeral head complex was evaluated at 6 weeks postoperatively. Results In the hematoxylin and eosin staining, the tendon maturing score of the combined group was higher than that of the control group at postoperative 2 weeks. In the safranin O staining, stronger proteoglycan staining was observed in the combined group compared with the other groups at postoperative 2 weeks. Vascular staining with isolectin B4 in 3 treatment groups was significantly higher than that in the control group. Type II collagen expression in the combined group was significantly higher than those in the other groups. The ultimate failure load of the combined group was significantly higher than that of the control group. Conclusion Combined therapy of basic fibroblast growth factor and platelet-rich plasma promoted angiogenesis, tendon maturing and fibrocartilage regeneration at the enthesis, which could enhance the mechanical strength. It was suggested that combined basic fibroblast growth factor and platelet-rich plasma might enhance both tendon and bone–tendon junction healing, and basic fibroblast growth factor and platelet-rich plasma might be synergistic.


2021 ◽  
Author(s):  
Takeshi Kataoka ◽  
Yutaka Mifune ◽  
Atsuyuki Inui ◽  
Hanako Nishimoto ◽  
Takashi Kurosawa ◽  
...  

Abstract Introduction: Excellent outcomes of arthroscopic rotator cuff repair for small and medium tears have been recently reported. However, re-tears after surgery have been a common complication after surgical repair of large and massive rotator cuff tears andoften occur in early postoperative phase. It was previously reported that basic fibroblastgrowth factor and platelet-rich plasma enhanced rotator cuff tear healing. Wehypothesized that this combined therapy could enhance rotator cuff healing after rotatorcuff repair in a rat model. This study aimed to evaluate the efficacy of combined therapyof platelet-rich plasma and basic fibroblast growth factor with gelatin-hydrogel sheet.Methods: To create a rotator cuff defect, the infraspinatus tendon of Sprague Dawley ratwas resected from the greater tuberosity. The infraspinatus tendons were repaired andcovered with gelatin-hydrogel sheet impregnated with PBS (control group), basicfibroblast growth factor (bFGF group), platelet-rich plasma (PRP group), or both basicfibroblast growth factor and platelet-rich plasma (combined group). Histologicalexaminations were conducted using hematoxylin and eosin, safranin O, andimmunofluorescence staining such as Isolectin B4, type II collagen. For mechanicalanalysis, ultimate failure load of the tendon-humeral head complex was evaluated at41 weeks postoperatively.Results: In the hematoxylin and eosin staining, the tendon maturing score of the combined group was higher than that of the control group postoperativeat 2 weeks. Inthe safranin O staining, stronger proteoglycan staining was observed in the combinedgroup compared with the other groups at postoperative 2 weeks. Vascular staining withisolectin B4 in 3 treatment groups was significantly higher than that in the control group.Type II collagen expression in the combined group was significantly higher than those inthe other groups. The ultimate failure load of the combined group was significantly higherthan that of the control group.Conclusion: Combined therapy of basic fibroblast growth factor and platelet-rich plasmapromoted angiogenesis; tendon maturing and fibrocartilage regeneration at the enthesis,which could be enhance the mechanical strength. It was suggested that basic fibroblastgrowth factor and platelet-rich plasma enhance both tendon and bone-tendon junctionhealing, and basic fibroblast growth factor and platelet-rich plasma were synergistic.


2006 ◽  
Vol 68 (3) ◽  
pp. 248-250 ◽  
Author(s):  
Shuko OKADA ◽  
Takashi MASU ◽  
Takahiko TSUNODA ◽  
Ryuhei OKUYAMA ◽  
Setsuya AIBA

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