Journals / Spor Hekimliği Dergisi / 2018 / Cilt: 53 - Sayı: 2

The Effect of PRGF on Healing of Clamp-Induced Tendinopathy in Animals

Klemp ile Tendinopati Oluşturulan Hayvanlarda PRGF Uygulamasının İyileşmeye Etkisi

Pages
51–58
Publication Date
2022-10-19
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

An intense increase in organelle levels was observed in PRGF groupfibroblasts.Conclusion: This data suggests that PRGF may provide a better healing response intendons with limited healing and circulation, which enhances the activation in the cells atthe beginning of the healing process.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: To investigate the effect of PRGF on the healing of the tendon damage in theAchilles tendinopathy model.Material and Methods: A preliminary study was designed to obtain more apparenttendinopathy changes in the subculture.
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Key Findings & Data:Histopathologically, second level compressionwith a clamp for 1 minute followed by releasing for 3 minutes applying the samemechanical stimulus procedure for four times, was defined as the optimal compressionmode for the most optimal damage in terms of tendinopathy.
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Conclusion & Impact:An intense increase in organelle levels was observed in PRGF groupfibroblasts.Conclusion: This data suggests that PRGF may provide a better healing response intendons with limited healing and circulation, which enhances the activation in the cells atthe beginning of the healing process.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: To investigate the effect of PRGF on the healing of the tendon damage in theAchilles tendinopathy model.Material and Methods: A preliminary study was designed to obtain more apparenttendinopathy changes in the subculture. Histopathologically, second level compressionwith a clamp for 1 minute followed by releasing for 3 minutes applying the samemechanical stimulus procedure for four times, was defined as the optimal compressionmode for the most optimal damage in terms of tendinopathy. Thirty-four female SpragueDowney type rats were divided into five separate groups and clamped tendon damage wasformed on unilateral (left) Acchilles tendons. The first group was a control group (Kontrol:CN); in the second group tissue specimens were taken from the rats immediately afterbeing clamped (K-0); from the group 3, tissue samples were taken 1 week after clamping(K-7). Immediately after the tendinopathy model was applied to the animals in the fourthgroup (PRGF), the PRGF injection was performed to the subjects from the blood that wasobtained from the control group, while an isotonic saline solution was injected into thesubjects in the fifth group (SF), and tissue samples from both groups were obtained 1week after.Results: The samples were examined by means of a transmission electron microscope. Inthe K-0 group among the collagenous fibers, vacuoles are observed in the cytoplasm ofthe edematous areas and fibrocytes, and in comparison, with K-7 and SF group there wasa significant increase in fibroblast and collagen fiber synthesis in the PRGF-treated group.Furthermore, fibroblast and new collagen synthesis were observed to be increased in K-7and SF groups. An intense increase in organelle levels was observed in PRGF groupfibroblasts.Conclusion: This data suggests that PRGF may provide a better healing response intendons with limited healing and circulation, which enhances the activation in the cells atthe beginning of the healing process.

Özet

Amaç: PRGF uygulamasının Aşil tendinopati modelinde tendon hasarı iyileşmesindeki etkisini incelemek Gereç ve Yöntemler: Bu çalışma öncesinde Aşil tendonunda tendinopatik değişikliklerin daha belirgin ortaya çıkmasını sağlamak amacıyla yapılan ön çalışmada; klemp ile ikinci dişli seviyesinde 1 dakika sıkıştırmayı takiben 3 dakika serbest bırakma şeklinde yapılan dört sıkıştırmanın tendinopati açısından en optimal hasarı yarattığı histopatolojik olarak gösterildi. 34 adet dişi Sprague Downey tipi sıçan, beş ayrı gruba ayrılarak tek taraflı (sol) aşil tendonlarına klemp ile tendon hasarı oluşturuldu. İlk gruba herhangi bir şey uygulamaksızın (Kontrol:CN) doku örnekleri alınırken, 2. gruptaki sıçanlardan klemp ile sıkıştırıldıktan hemen sonra (K-0), 3. gruptakilerden ise klemp ile sıkıştırıldıktan 1 hafta sonra (K-7) doku örnekleri alındı. 4. gruptaki hayvanlara (PRGF) tendinopati modeli uygulandıktan hemen sonra kontrol grubu deneklerden alınan kandan hazırlanmış PRGF enjeksiyonu yapıldı ve 1 hafta sonra doku örnekleri elde edilirken, son gruptaki hayvanlara (SF) klemp ile sıkıştırıldıktan hemen sonra serum fizyolojik enjeksiyonunu takiben 1. haftada feda edilerek doku örnekleri alındı. Bulgular: Örneklerin transmisyon elektron mikroskop ile yapılan incelemesinde; K-0 grubunda kollajen lifler arasında yer yer ödemli sahalar ve fibrositlerin sitoplazmalarında vakuoller izlenirken, K-7 ve SF grupları ile karşılaştırıldığında; PRGF uygulanan grupta fibroblastlarda ve kollajen lif sentezinde belirgin artış olduğu gözlendi. Bununla birlikte K-7 ve SF gruplarında da fibroblast ve yeni kollajen sentezi artmış olarak izleniyordu. PRGF grubu fibroblastlarında organel düzeyinde yoğun bir artış gözlendi. Sonuç: Bu veriler PRGF’in iyileşmeye erken dönemde katkısının hücrelerdeki aktivasyonu arttırarak gerçekleştirdiği, kısıtlı iyileşme ve döngüye sahip tendonlarda daha iyi bir iyileşme yanıtı sağlayabileceği şeklinde yorumlandı.

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Cite This Article

DORAL, M. N., DEMİREL, H. A., SARGON, M. F., DÖNMEZ, G., DİLİÇIKIK, U., BİRANT, E. (2022). The Effect of PRGF on Healing of Clamp-Induced Tendinopathy in Animals. Spor Hekimliği Dergisi, Cilt: 53 - Sayı: 2, 51–58. https://ajindex.com/articles/593297

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