Effect of Avocado/Soybean Unsaponifiables ASU on Osseointegration in Rats with Experimental Arthritis

Author(s)

Freitas de Paula, Luiz Guilherme ^[1] ; Pimentel Lopes de Oliveira, Guilherme Jose ^{[2, 3]} ; Pinotti, Felipe Eduardo ^[2] ; Grecchi, Bruna Biagioni ^[2] ; de Aquino, Sabrina Garcia ^[4] ; Chierici Marcantonio, Rosemary Adriana ^[2]

Affiliation

^[1] Univ Anapolis, Sch Dent, Periodontol, Anapolis, Go - Brazil

^[2] Sao Paulo State Univ UNESP, Sch Dent, Dept Diag & Surg, Campus Araraquara, Araraquara - Brazil

^[3] Univ Fed Uberlandia, Dent Sch, Dept Periodontol, Uberlandia, MG - Brazil

^[4] Univ Fed Paraiba, Dept Hlth Sci, Campus 1, Joao Pessoa, Paraiba - Brazil

• Document type: Journal article
• Source: INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS; v. 33, n. 3, p. 603-612, MAY-JUN 2018.
• Web of Science Citations: 0

Abstract

Purpose: To evaluate the influence of the use of avocado/soybean unsaponifiables (ASU) on osseointegration of implants in animals with experimental arthritis. Materials and Methods: One hundred twenty rats were randomly divided into four groups: CTR, healthy animals and saline solution administration; ASU, healthy animals and ASU administration; ART, arthritic animals and saline solution administration; and ART/ASU, arthritic animals and ASU administration. The solutions were administered daily by gavage, beginning 7 days before the surgical procedures until the completion of the experimental period (15, 30, and 60 days after the placement of the implants in the tibia). The osseointegration of the implants was evaluated by histometric analysis (bone-to-implant contact {[}% BIC], bone area between the threads {[}% BBT]) and biomechanical analysis. Microcomputed tomography (micro-CT) analysis was used to assess bone volume in the vicinity of the implant. Immunohistochemistry analysis was performed to assess the expression of osteocalcin and transforming growth factor beta 1 (TGF-beta 1). Results: The ART/ASU group showed a decreased percentage of bone in the area around the implant compared with the ASU and ART groups (15 and 30 days). The ART/ASU group showed increased removal torque values (30 days) and % BIC and % BBT (30 to 60 days) compared with the ART group. The ASU group had increased % BIC values compared with the ART and CTR groups (60 days). The CTR group had the highest expression of osteocalcin, while the ASU group presented the highest expression of TGF-beta 1 at 60 days. Conclusion: The ASU administration improved the osseointegration, particularly in animals with induced arthritis. (AU)

• FAPESP's process: 10/13029-9 - Effect of avocado and soybean unsaponifiables on induced periodontal disease and osseointegration. Histological, radiological and immunohistochemistry in rats.
• Grantee: Rosemary Adriana Chierici Marcantonio
• Support Opportunities: Regular Research Grants
• FAPESP's process: 09/17395-2 - Influence of avocado and soybean unsaponifiables in the induced periodontal disease and bone around integrated dental implants. Histological, radiographic and immuno-inflammatory analysis in rats.
• Grantee: Guilherme José Pimentel Lopes de Oliveira
• Support Opportunities: Scholarships in Brazil - Doctorate