兔模型手术后骨修复的时间演变:一项[99m锝]锝-MDP闪烁成像研究。

IF 1.9 4区 医学 Q2 BIOLOGY
A Yoneda, K J C C de Lacerda, L Alexandre-Santos, E N Itikawa, P Louzada-Junior, L Wichert-Ana
{"title":"兔模型手术后骨修复的时间演变:一项[99m锝]锝-MDP闪烁成像研究。","authors":"A Yoneda, K J C C de Lacerda, L Alexandre-Santos, E N Itikawa, P Louzada-Junior, L Wichert-Ana","doi":"10.1590/1414-431X2024e12953","DOIUrl":null,"url":null,"abstract":"<p><p>Bone regeneration is crucial for repairing bone tissue following various injuries. Research techniques that enable the study of metabolic changes in bone tissue under different conditions are important for understanding bone repair and remodeling. This study used bone scintigraphy to evaluate osteogenesis secondary to osteotomy in a preclinical model of New Zealand rabbits. For this purpose, we conducted a longitudinal, prospective, case-control study in which scintigraphic variables were measured in both the right forearm (case-operated) and the left forearm (control - non-operated). The study sample consisted of 10 rabbits subjected to osteotomy, followed by a 12-week postoperative evaluation period, divided into six imaging stages at 1, 2, 3, 4, 8, and 12 weeks. We observed that the operated forearm showed significantly higher external radiation than the control side, using the pinhole collimator, denoting an increase in the biodistribution and tropism of the radiopharmaceutical to the operated forearm. Among the three evaluated time points, osteoblastic activity was highest in the second week and presented a significant decline in the 8th and 12th weeks, denoting regeneration and resolution of the surgical injury; the control forearm was also influenced by the inactivity imposed by the operated forearm. This fact was notably evidenced by the reduction in the metabolic activity of osteoblasts in the left forearm. Our study suggested that bone scintigraphy was sensitive enough to semi-quantitatively differentiate the metabolic activity of osteoblasts in the operated forearm in the three temporal landmarks evaluated in the study.</p>","PeriodicalId":9088,"journal":{"name":"Brazilian Journal of Medical and Biological Research","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10946240/pdf/","citationCount":"0","resultStr":"{\"title\":\"Temporal evolution of postsurgical bone repair in a rabbit model: A [99mTc]Tc-MDP scintigraphic study.\",\"authors\":\"A Yoneda, K J C C de Lacerda, L Alexandre-Santos, E N Itikawa, P Louzada-Junior, L Wichert-Ana\",\"doi\":\"10.1590/1414-431X2024e12953\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Bone regeneration is crucial for repairing bone tissue following various injuries. Research techniques that enable the study of metabolic changes in bone tissue under different conditions are important for understanding bone repair and remodeling. This study used bone scintigraphy to evaluate osteogenesis secondary to osteotomy in a preclinical model of New Zealand rabbits. For this purpose, we conducted a longitudinal, prospective, case-control study in which scintigraphic variables were measured in both the right forearm (case-operated) and the left forearm (control - non-operated). The study sample consisted of 10 rabbits subjected to osteotomy, followed by a 12-week postoperative evaluation period, divided into six imaging stages at 1, 2, 3, 4, 8, and 12 weeks. We observed that the operated forearm showed significantly higher external radiation than the control side, using the pinhole collimator, denoting an increase in the biodistribution and tropism of the radiopharmaceutical to the operated forearm. Among the three evaluated time points, osteoblastic activity was highest in the second week and presented a significant decline in the 8th and 12th weeks, denoting regeneration and resolution of the surgical injury; the control forearm was also influenced by the inactivity imposed by the operated forearm. This fact was notably evidenced by the reduction in the metabolic activity of osteoblasts in the left forearm. Our study suggested that bone scintigraphy was sensitive enough to semi-quantitatively differentiate the metabolic activity of osteoblasts in the operated forearm in the three temporal landmarks evaluated in the study.</p>\",\"PeriodicalId\":9088,\"journal\":{\"name\":\"Brazilian Journal of Medical and Biological Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2024-03-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10946240/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brazilian Journal of Medical and Biological Research\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1590/1414-431X2024e12953\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Medical and Biological Research","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1590/1414-431X2024e12953","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

骨再生对于修复各种损伤后的骨组织至关重要。能够研究不同条件下骨组织代谢变化的研究技术对于了解骨修复和重塑非常重要。本研究利用骨闪烁成像技术评估新西兰兔临床前模型中继发于截骨术的骨生成。为此,我们进行了一项纵向、前瞻性、病例对照研究,测量了右前臂(手术病例)和左前臂(对照组--非手术病例)的闪烁成像变量。研究样本包括 10 只接受截骨术的兔子,术后评估期为 12 周,分为 1、2、3、4、8 和 12 周六个成像阶段。我们观察到,使用针孔准直器时,手术前臂的外部辐射明显高于对照侧,这表明放射性药物在手术前臂的生物分布和滋养程度有所增加。在三个评估时间点中,成骨细胞活性在第二周最高,并在第 8 周和第 12 周显著下降,这表明手术损伤已经再生和愈合;对照组前臂也受到了手术前臂造成的不活动性的影响。左前臂成骨细胞代谢活性的降低明显证明了这一点。我们的研究表明,骨闪烁成像的灵敏度足以半定量地区分手术前臂在研究中评估的三个颞部地标中的成骨细胞代谢活性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Temporal evolution of postsurgical bone repair in a rabbit model: A [99mTc]Tc-MDP scintigraphic study.

Bone regeneration is crucial for repairing bone tissue following various injuries. Research techniques that enable the study of metabolic changes in bone tissue under different conditions are important for understanding bone repair and remodeling. This study used bone scintigraphy to evaluate osteogenesis secondary to osteotomy in a preclinical model of New Zealand rabbits. For this purpose, we conducted a longitudinal, prospective, case-control study in which scintigraphic variables were measured in both the right forearm (case-operated) and the left forearm (control - non-operated). The study sample consisted of 10 rabbits subjected to osteotomy, followed by a 12-week postoperative evaluation period, divided into six imaging stages at 1, 2, 3, 4, 8, and 12 weeks. We observed that the operated forearm showed significantly higher external radiation than the control side, using the pinhole collimator, denoting an increase in the biodistribution and tropism of the radiopharmaceutical to the operated forearm. Among the three evaluated time points, osteoblastic activity was highest in the second week and presented a significant decline in the 8th and 12th weeks, denoting regeneration and resolution of the surgical injury; the control forearm was also influenced by the inactivity imposed by the operated forearm. This fact was notably evidenced by the reduction in the metabolic activity of osteoblasts in the left forearm. Our study suggested that bone scintigraphy was sensitive enough to semi-quantitatively differentiate the metabolic activity of osteoblasts in the operated forearm in the three temporal landmarks evaluated in the study.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
4.00
自引率
0.00%
发文量
129
审稿时长
2 months
期刊介绍: The Brazilian Journal of Medical and Biological Research, founded by Michel Jamra, is edited and published monthly by the Associação Brasileira de Divulgação Científica (ABDC), a federation of Brazilian scientific societies: - Sociedade Brasileira de Biofísica (SBBf) - Sociedade Brasileira de Farmacologia e Terapêutica Experimental (SBFTE) - Sociedade Brasileira de Fisiologia (SBFis) - Sociedade Brasileira de Imunologia (SBI) - Sociedade Brasileira de Investigação Clínica (SBIC) - Sociedade Brasileira de Neurociências e Comportamento (SBNeC).
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信