Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes no. 3900, Ribeirão Preto - SP, Brazil.
Braz J Otorhinolaryngol. 2012 Dec;78(6):40-6. doi: 10.5935/1808-8694.20120031.
In an attempt to improve the quality of life of patients with vitreous humor disease, ophthalmologists began offering steroid-eluting biodegradable implants to their patients. These implants can be used as an alternative treatment for CRS and this is why this experimental study was carried out on rabbit maxillary sinuses.
This study aims to assess the histology of the mucosa of the maxillary sinuses of rabbits after the placement of a prednisolone-eluting biodegradable implant.
Eighteen rabbits were randomly divided into two groups: group 1 - subjects had drug-eluting implants placed on their left maxillary sinuses; group 2 - subjects had non-drug-eluting implants placed on their left maxillary sinuses. The right maxillary sinuses served as the controls. After seven, 14, and 28 days three rabbits in each group were randomly picked to have their tissue inflammatory response assessed.
Levels of mucosal inflammation were not significantly different between the groups with and without drug-eluting implants and the control group, or when the groups with drug-eluting implants and non-drug-eluting implants were compared.
Signs of toxicity or mucosal inflammation were not observed in the maxillary sinuses of rabbits given prednisolone-eluting implants or non-drug-eluting implants.
本研究旨在评估兔上颌窦黏膜在放置泼尼松龙洗脱可生物降解植入物后的组织学变化。
18 只兔子被随机分为两组:第 1 组 - 实验组将药物洗脱植入物置于左侧上颌窦;第 2 组 - 对照组将非药物洗脱植入物置于左侧上颌窦。右侧上颌窦作为对照。每组在第 7、14 和 28 天随机抽取 3 只兔子进行组织炎症反应评估。
在有和没有药物洗脱植入物的组以及对照组之间,或者在有和没有药物洗脱植入物的组之间进行比较时,黏膜炎症水平没有显著差异。
给予兔泼尼松龙洗脱植入物或非药物洗脱植入物后,上颌窦未观察到毒性或黏膜炎症迹象。