کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9353971 | 1266795 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Increased concentrations of neuro-excitatory amino acids in rat anterior cruciate ligament-transected knee joint dialysates: a microdialysis study
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
ارتوپدی، پزشکی ورزشی و توانبخشی
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چکیده انگلیسی
Changes in excitatory amino acid (EAA) levels were examined in the knee joint dialysates of rats with early osteoarthritis (OA). Early OA was induced by anterior cruciate ligament (ACL) transection in one knee and the contralateral knee was used as the sham-operated control, the side for ACL transection being assigned randomly. Twenty weeks after operation, knee joint dialysates were collected by microdialysis and assayed for EAAs by high performance liquid chromatography. The rats were then sacrificed for histopathological examination. Hematoxylin/eosin and Safranin-O staining showed cartilage fibrillation, clustering of chondrocytes, and a reduction in matrix proteoglycans at week 20 in the ACL-transected knee, but not in the sham-operated knee. Levels of glutamate and aspartate in dialysates from the ACL-transected knee were significantly increased by 92 ± 20.3% or 57 ± 17.5%, respectively, compared to those in the contralateral sham-operated knee. This increase may contribute to the pathogenesis of early OA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Orthopaedic Research - Volume 23, Issue 3, May 2005, Pages 569-575
Journal: Journal of Orthopaedic Research - Volume 23, Issue 3, May 2005, Pages 569-575
نویسندگان
Yen-Hsuan Jean, Zhi-Hong Wen, Yi-Chen Chang, Guo-Shu Huang, Herng-Sheng Lee, Shih-Peng Hsieh, Chih-Shung Wong,