Osteoinductivity potential of rhBMP-2 associated with two carriers in different dosages

Autor(es)

Fernandes Abdala, Priscilla Maria ^[1] ; Iyomasa, Mamie Mizusaki ^[1] ; Sato, Sandra ^[2] ; Lopes Badra Bentley, Maria Vitoria ^[3] ; Pitol, Dimitrius Leonardo ^[1] ; Hallak Regalo, Simone Cecilio ^[1] ; Siessere, Selma ^[1] ; Mardegan Issa, Joao Paulo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Morphol Oral Med & Physiol, Fac Dent, BR-14040904 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Dept Dent Mat & Prosthodont, Fac Dent Ribeirao Preto, BR-14040904 Sao Paulo - Brazil

^[3] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, BR-14040903 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ANATOMICAL SCIENCE INTERNATIONAL; v. 85, n. 4, p. 181-188, DEC 2010.
• Citações Web of Science: 7

Resumo

The objective of this study was to evaluate bone formation after application of different doses of recombinant human bone morphogenetic protein-2 (rhBMP-2) combined with monoolein or poloxamer gels, in critical bone defects of rats. Forty-five Wistar rats were divided into nine treatment groups with five animals each: I: application of 1 A mu g rhBMP-2 + monoolein; II: 3 A mu g rhBMP-2 + monoolein; III: 7 A mu g rhBMP-2 + monoolein; IV: 1 A mu g rhBMP-2 + poloxamer; V: 3 A mu g rhBMP-2 + poloxamer; VI: 7 A mu g rhBMP-2 + poloxamer; VII: monoolein only; VIII: poloxamer only; and IX: critical bone defect only. A critical-sized defect of 6 mm diameter was produced in the left parietal bone and it was filled with gels of the above mentioned treatments. After 2 weeks, the calvarial bones were removed for histological processing. Bone formation in the groups that received poloxamer gel and rhBMP-2 was not significantly different from the control group (IX). Groups receiving monoolein and rhBMP-2 (1 and 3 A mu g) and those that received only the carriers (VII and VIII) had less bone formation in relation to the control. The association of rhBMP-2 to both poloxamer and monoolein did not exhibit any significant differentiation in bone formation in comparison with the control group. (AU)

• Processo FAPESP: 07/58338-6 - Análise do potencial de osteoindutividade da proteína morfogenética rhBMP-2 associada a diferentes dosagens e carreadores, em ratos Wistar
• Beneficiário: Priscilla Maria Fernandes Abdala
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica