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首页> 外文期刊>Journal of Neuroscience Methods >A robust model of adjuvant-induced chronic unilateral arthritis in two mouse strains.
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A robust model of adjuvant-induced chronic unilateral arthritis in two mouse strains.

机译:两种小鼠品系中佐剂诱导的慢性单侧关节炎的稳健模型。

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We have developed a model of unilateral adjuvant-arthritis that is reproducible across two mouse strains. DBA/1 and C57BL/6 male mice were injected intra-articularly into a stifle joint with FCA (5渭g in 5渭l) once per week for 4 weeks. Measurements of joint diameter and joint histopathology were used to monitor the course of the arthritis. Inflammatory hyperalgesia was assessed as the pressure causing a limb withdrawal. FCA injection into the mouse stifle joint caused a pronounced increase in joint diameter when compared to the contralateral limb or vehicle controls. There was also a significant decrease in the pressure required to elicit a withdrawal of the injected limb. Histology showed arthritic changes, including synovial hypertrophy and polymorphonuclear neutrophil infiltration. In established chronic inflammation, seven days of treatment with either indomethacin (NSAID) or prednisolone (steroid) caused a significant decrease in joint inflammation and associated hyperalgesia. FCA induces a long-lasting joint inflammation in DBA/1 and C57BL/6 mice, which is restricted to the injected joint and exhibits some of the pathology associated with an arthritic condition. This model will be useful in examining the effect of joint inflammation on nociceptor sensitisation in both normal and transgenic mice.
机译:我们已经开发了一种可在两种小鼠品系之间重现的单侧佐剂性关节炎模型。每周一次将DBA / 1和C57BL / 6雄性小鼠关节内注射到带有FCA(5μg/5μl)的窒息关节中,持续4周。关节直径和关节组织病理学的测量用于监测关节炎的进程。炎性痛觉过敏被评估为导致四肢退缩的压力。与对侧肢体或媒介物对照相比,将FCA注射到小鼠窒息关节中会导致关节直径明显增加。引起注射肢体退缩所需的压力也显着降低。组织学显示关节炎改变,包括滑膜肥大和多形核中性粒细胞浸润。在确定的慢性炎症中,用消炎痛(NSAID)或泼尼松龙(类固醇)治疗7天可使关节炎症和相关的痛觉过敏明显减少。 FCA在DBA / 1和C57BL / 6小鼠中诱导持久的关节发炎,这种炎症仅限于注射的关节,并表现出一些与关节炎相关的病理学。该模型将用于检查正常和转基因小鼠中关节炎症对伤害感受器敏化的影响。

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