Immunostaining results for Prelp, Type III collagen, and Fibromodulin.

Prelp = proline-arginine-rich end leucine-rich repeat protein. Sections from 3 DMM and 4 sham control animals at 16 weeks after surgery were graded on a scale from no immunopositivity (−) to marked immunopositivity (++++). The results presented are the consensus grades from all animals evaluated. The degenerate/fibrillated cartilage was only present in the DMM animals.

Prelp，即富含脯氨酸-精氨酸的C端亮氨酸富集重复蛋白（proline-arginine-rich end leucine-rich repeat protein）。本研究对术后16周的3只内侧半月板失稳术（destabilization of the medial meniscus, DMM）模型动物与4只假手术对照动物的组织切片进行免疫阳性评分，评分标尺设置为无免疫阳性（−）至强免疫阳性（++++）。本次呈现的结果为所有受试动物的共识评分。退变/纤维化软骨仅见于DMM模型动物组中。