Human articular cartilage and fibrocartilage: a study with high-angle x-ray diffraction.
High-angle x-ray diffraction was applied to the study of four meniscal fibrocartilages and 11 articular cartilages from patients suffering from various articular disorders. In eight samples microcrystals were seen, apatite most frequently, CaHPO4 in two instances, calcium pyrophosphate dihydrate (CPPD) in one. These results confirm the association of various crystals in a single joint, and favour their heterogenous partition on collagen fibres.
D000328:Adult; D000368:Aged; D000818:Animals; D001172:Arthritis, Rheumatoid / Q000378:metabolism; D002130:Calcium Phosphates / Q000032:analysis; D002131:Calcium Pyrophosphate / Q000032:analysis; D002356:Cartilage / Q000032:analysis*; D002358:Cartilage, Articular / Q000032:analysis; D002805:Chondrocalcinosis / Q000378:metabolism; D003094:Collagen / Q000032:analysis; D005260:Female; D006621:Hip Joint; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000378:metabolism; D011817:Rabbits; D014961:X-Ray Diffraction
D002130:Calcium Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; C485838:calcium phosphate, monobasic, anhydrous; D003094:Collagen; C020243:calcium phosphate; C485829:calcium phosphate, dibasic, anhydrous; D002131:Calcium Pyrophosphate