Javascript must be enabled to continue!
Effect of pentoxifylline on healing of segmental bone defects and angiogenesis
View through CrossRef
Abstract
Objective: The aim of this study was to determine the effect of pentoxifylline (PTX) on angiogenesis and the healing of a critical-sized segmental defect of the radius diaphysis in a rat model, using radiological and histological grading systems.
Methods: The study included 24 female Sprague-Dawley rats (weight: 300±20 g) divided into 4 groups. A critical-sized segmental defect was created in the radius diaphysis in all rats. In Group 1, morcellized iliac crest autografts were used to fill the segmental bone defect. In Group 2, segmental bone defects were filled using morcellized iliac crest autografts, and 25 mg/kg/day PTX was applied intraperitoneally. In Group 3, the segmental bone defects were not filled, and in Group 4 the segmental bone defects were left unfilled, and an intraperitoneal (IP) dose of 25 mg/kg/day PTX was applied. Rats were sacrificed at postoperative Week 8, and defects were evaluated using radiographic, histological and immunohistochemical methods.
Results: There were significant differences between Group 1 and 2 according to radiological evaluation (p=0.003) and quality of union at the defect site (p=0.01). Union quality was higher in Group 4 than Group 3 (p=0.01). Cluster of differentiation 31 (CD31) and vascular endothelial growth factor (VEGF) levels were higher in Group 2 than in Groups 3 and 4.
Conclusion: According to radiological and histological parameters, PTX appears to improve angiogenesis and healing of segmental cortical bone defects of the radius in a rat model.
DOI: 10.3944/AOTT.2015.15.0158
Özet
Amaç: Bu çalışmanın amacı; pentoksifilinin (PTX) anjiogenezis ve sıçan radius diafizi “critical-sized” segmenter kemik kaybı modelinde iyileşme üzerine etkisini radyolojik ve histolojik derecelendirme sistemleri kullanılarak değerlendirilmesidir.Çalışma planı: Bu çalışmaya 24 female Sprague Dawley sıçan (ağırlık: 300±20 gram) katılmıştır ve 4 gruba ayrılmıştır. Sıçanların radius diafizlerinde “critical-sized” segmenter kemik kaybı oluşturuldu. Grup 1’de morselize iliak krest otogreftleri segmenter kemik defektini doldurmada kullanıldı. Grup 2’de segmenter kemik defekti morselize iliak krest otogreftleri ile dolduruldu ve günlük intraperitoneal olarak 25 mg/kg PTX uygulandı. Grup 3’te kemik defekti doldurulmadı. Grup 4’te kemik defekti doldurulmadı ve günlük intraperitoneal olarak 25 mg/kg PTX uygulandı. Postoperatif sekizinci haftada sıçanlar feda edildi. Defektler radiografik, histolojik ve immünokimyasal metodlar ile değerlendirildi.Bulgular: Group 1 ve 2 arasında radyolojik değerlendirme sonucunda (p=0.003) ve defekt bölgesinde kaynama kalitesi açısından (p=0.01) belirgin farklılık izlendi. Kaynama kalitesi grup 4’te grup 3’e göre fazlaydı (p=0.01). CD-31 ve VEGF seviyeleri grup 2’de grup 3 ve 4’e göre fazlaydı.Çıkarımlar: Radyolojik ve histolojik parametrelere göre; pentoksifilinin angiogenezis ve sıçan radius diafizi “critical-sized” segmenter kemik kaybı modelinde iyileşme üzerine olumlu etkisi bulunmaktadır.Bu çalışmanın amacı; pentoksifilinin (PTX) angiogenesis ve sıçan radius diafizi “critical-sized” segmenter kemik kaybı modelinde iyileşme üzerine etkisini radyolojik ve histolojik derecelendirme sistemleri kullanılarak değerlendirilmesidir.Gereç ve yöntemBu çalışma üniversitemiz Etik kurul onayı alındıktan sonra Hayvan Araştırma Laboratuvarlarında yapılmıştır
AVES YAYINCILIK A.Ş.
Title: Effect of pentoxifylline on healing of segmental bone defects and angiogenesis
Description:
Abstract
Objective: The aim of this study was to determine the effect of pentoxifylline (PTX) on angiogenesis and the healing of a critical-sized segmental defect of the radius diaphysis in a rat model, using radiological and histological grading systems.
Methods: The study included 24 female Sprague-Dawley rats (weight: 300±20 g) divided into 4 groups.
A critical-sized segmental defect was created in the radius diaphysis in all rats.
In Group 1, morcellized iliac crest autografts were used to fill the segmental bone defect.
In Group 2, segmental bone defects were filled using morcellized iliac crest autografts, and 25 mg/kg/day PTX was applied intraperitoneally.
In Group 3, the segmental bone defects were not filled, and in Group 4 the segmental bone defects were left unfilled, and an intraperitoneal (IP) dose of 25 mg/kg/day PTX was applied.
Rats were sacrificed at postoperative Week 8, and defects were evaluated using radiographic, histological and immunohistochemical methods.
Results: There were significant differences between Group 1 and 2 according to radiological evaluation (p=0.
003) and quality of union at the defect site (p=0.
01).
Union quality was higher in Group 4 than Group 3 (p=0.
01).
Cluster of differentiation 31 (CD31) and vascular endothelial growth factor (VEGF) levels were higher in Group 2 than in Groups 3 and 4.
Conclusion: According to radiological and histological parameters, PTX appears to improve angiogenesis and healing of segmental cortical bone defects of the radius in a rat model.
DOI: 10.
3944/AOTT.
2015.
15.
0158
Özet
Amaç: Bu çalışmanın amacı; pentoksifilinin (PTX) anjiogenezis ve sıçan radius diafizi “critical-sized” segmenter kemik kaybı modelinde iyileşme üzerine etkisini radyolojik ve histolojik derecelendirme sistemleri kullanılarak değerlendirilmesidir.
Çalışma planı: Bu çalışmaya 24 female Sprague Dawley sıçan (ağırlık: 300±20 gram) katılmıştır ve 4 gruba ayrılmıştır.
Sıçanların radius diafizlerinde “critical-sized” segmenter kemik kaybı oluşturuldu.
Grup 1’de morselize iliak krest otogreftleri segmenter kemik defektini doldurmada kullanıldı.
Grup 2’de segmenter kemik defekti morselize iliak krest otogreftleri ile dolduruldu ve günlük intraperitoneal olarak 25 mg/kg PTX uygulandı.
Grup 3’te kemik defekti doldurulmadı.
Grup 4’te kemik defekti doldurulmadı ve günlük intraperitoneal olarak 25 mg/kg PTX uygulandı.
Postoperatif sekizinci haftada sıçanlar feda edildi.
Defektler radiografik, histolojik ve immünokimyasal metodlar ile değerlendirildi.
Bulgular: Group 1 ve 2 arasında radyolojik değerlendirme sonucunda (p=0.
003) ve defekt bölgesinde kaynama kalitesi açısından (p=0.
01) belirgin farklılık izlendi.
Kaynama kalitesi grup 4’te grup 3’e göre fazlaydı (p=0.
01).
CD-31 ve VEGF seviyeleri grup 2’de grup 3 ve 4’e göre fazlaydı.
Çıkarımlar: Radyolojik ve histolojik parametrelere göre; pentoksifilinin angiogenezis ve sıçan radius diafizi “critical-sized” segmenter kemik kaybı modelinde iyileşme üzerine olumlu etkisi bulunmaktadır.
Bu çalışmanın amacı; pentoksifilinin (PTX) angiogenesis ve sıçan radius diafizi “critical-sized” segmenter kemik kaybı modelinde iyileşme üzerine etkisini radyolojik ve histolojik derecelendirme sistemleri kullanılarak değerlendirilmesidir.
Gereç ve yöntemBu çalışma üniversitemiz Etik kurul onayı alındıktan sonra Hayvan Araştırma Laboratuvarlarında yapılmıştır.
Related Results
Frequency of Common Chromosomal Abnormalities in Patients with Idiopathic Acquired Aplastic Anemia
Frequency of Common Chromosomal Abnormalities in Patients with Idiopathic Acquired Aplastic Anemia
Objective: To determine the frequency of common chromosomal aberrations in local population idiopathic determine the frequency of common chromosomal aberrations in local population...
Poster 107: The Use of Coacervate Sustained Release System to Identify the Most Potent BMP for Bone Regeneration
Poster 107: The Use of Coacervate Sustained Release System to Identify the Most Potent BMP for Bone Regeneration
Objectives:
Bone morphogenetic proteins (BMPs) belong to the transforming growth factor superfamily that were first discovered by Marshall Urist. There are 14 B...
Oral Pentoxifylline in the Treatment of Venous Leg Ulcers: a Meta-Analysis
Oral Pentoxifylline in the Treatment of Venous Leg Ulcers: a Meta-Analysis
<p>Compression bandaging improves rates of healing in people with venous ulceration. Some ulcers appear resistant to compression therapy and may benefit from adjunctive thera...
Initiation of Acute Graft-Versus-Host Disease By Angiogenesis
Initiation of Acute Graft-Versus-Host Disease By Angiogenesis
Abstract
Angiogenesis and inflammation are two closely related processes and inhibition of angiogenesis can ameliorate inflammatory diseases by reducing the recruitm...
New Design of Plate Implant for Bone Healing Assessment Using Frequency Measurement: A Biomechanical Cadaveric Study
New Design of Plate Implant for Bone Healing Assessment Using Frequency Measurement: A Biomechanical Cadaveric Study
Abstract
This study is a biomechanical cadaveric investigation to assess bone healing by measuring frequency changes using a new plate design cal...
The irradiated human mandible
The irradiated human mandible
Mandibular bone is known to be susceptible to irradiation damage, especially when radiation dose exceeds 50 Gy. This can result in compromised wound healing and ultimately osteorad...
A comparative study of calcium sulfate artificial bone graft versus allograft in the reconstruction of bone defect after tumor curettage
A comparative study of calcium sulfate artificial bone graft versus allograft in the reconstruction of bone defect after tumor curettage
BackgroundCavity reconstruction after benign bone tumor removal is varied and controversial. Allograft is widely used but is associated with complications. New bone substitutes, su...
Treatment outcomes following alveolar cleft rehabilitation
Treatment outcomes following alveolar cleft rehabilitation
<p dir="ltr">Introduction: Alveolar cleft closure is typically done with bone grafting, and bone healing is assessed radiologically and clinically. However, there is no conse...

