کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2438788 1107746 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultrastructural Differences in Cranial Cruciate Ligaments from Dogs of Two Breeds with a Differing Predisposition to Ligament Degeneration and Rupture
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Ultrastructural Differences in Cranial Cruciate Ligaments from Dogs of Two Breeds with a Differing Predisposition to Ligament Degeneration and Rupture
چکیده انگلیسی

SummaryCranial (anterior) cruciate ligament (CCL) samples were obtained from dogs of the Labrador retriever (LR) and greyhound (GH) breeds, of which the former but not the latter is predisposed to CCL rupture. Electron microscopy revealed that the collagen fibril diameters of GHs were larger than those of LRs (P=0.03). Histological examination revealed a “fibrocartilaginous” appearance of CCLs in seven of eight GHs, and, to a lesser extent, in three of eight LRs. The formation of fibrocartilage is clearly not a disadvantage to the healthy racing GH, and cannot be regarded as a pathological degeneration in this breed. It is suggested that fibrocartilage is formed as a beneficial physiological adaptation to the compression of CCLs caused by tensile stress as a result of the tightening of two twisted bands. Fibrocartilage would appear to protect CCLs in the GH, but it may be indicative of a mild degenerative change, which may eventually lead to rupture in the LR.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Comparative Pathology - Volume 134, Issue 1, January 2006, Pages 8–16
نویسندگان
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