کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3382221 1220294 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The canine ‘groove’ model of osteoarthritis is more than simply the expression of surgically applied damage
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ایمونولوژی، آلرژی و روماتولوژی
پیش نمایش صفحه اول مقاله
The canine ‘groove’ model of osteoarthritis is more than simply the expression of surgically applied damage
چکیده انگلیسی

SummaryObjectiveRecently a new canine model of osteoarthritis (OA; the ‘groove’ model) has been described. This model is based on surgically applied mechanical damage of the articular cartilage followed by transient forced loading of the affected joint. Ten weeks after surgery this model shows characteristics of OA, mimicking human OA. To establish whether the observed characteristics of degeneration in this model represent the surgically applied damage, or are the results of progressive features of OA, we evaluated this ‘groove’ model shortly after surgery.MethodsIn 20 female Beagle dogs, articular cartilage of the weight-bearing areas of the femoral condyles in the right knee was damaged without affecting the underlying bone. After surgery dogs were let out on a patio 5 days/week for 4 h/day. The dogs were forced to load the experimental joint by fixing the contralateral control limb to the trunk 3 days/week. The severity of OA was evaluated at 3 (n = 10) or 10 weeks (n = 10) after surgery. Synovial inflammation, cartilage damage and cartilage matrix turnover were determined.ResultsTen weeks after surgery osteoarthritic features were found, as described previously. Proteoglycan (PG) synthesis, percentage release of newly formed PG, and that of total amount of PG were enhanced, whereas PG content was significantly diminished (all P < 0.05). Importantly, 3 weeks after surgery these characteristics of OA were not yet evident.ConclusionsThe present results clearly show that the characteristics observed 10 weeks after induction of joint degeneration in the groove model are not just the expression of the surgically applied damage but are the result of progressive features of (experimental) OA.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Osteoarthritis and Cartilage - Volume 14, Issue 1, January 2006, Pages 39–46
نویسندگان
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