Effect of osmium tetroxide and 198Au in normal and arthritic rabbit knee joints. 1978

K M Ahlberg, and A S Henricson, and H T Telhag, and F A Wollheim

Antigen-induced arthritis (AIA) was induced in adult rabbit knee joints, using ovalbumin as antigen. After 4 weeks, intra-articular injections of 0.3 ml 1% osmium tetroxide or 100 muCi 198Au were given. The same injections were also given to normal animals. The animals were observed for up to 12 weeks. In the normal animals, no affection of articular cartilage could be seen by light microscopy. In the arthritic animals, however, severe destruction of articular cartilage was seen. The degree of destruction in the osmium tetroxide-treated animals was similar to or even worse than that of the controls, whereas the 198Au-treated animals showed a lesser degree of destruction than both controls and osmium tetroxide-treated animals. Autoradiograms, using 3H-thymidine, showed affection articular cartilage in all groups, i.e. both normal and arthritic.

UI MeSH Term Description Entries
D007596 Joints Also known as articulations, these are points of connection between the ends of certain separate bones, or where the borders of other bones are juxtaposed. Joint
D009992 Osmium A very hard, gray, toxic, and nearly infusible metal element, atomic number 76, atomic weight 190.2, symbol Os.
D011817 Rabbits A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes. Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D002358 Cartilage, Articular A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact. Articular Cartilage,Articular Cartilages,Cartilages, Articular
D004353 Drug Evaluation, Preclinical Preclinical testing of drugs in experimental animals or in vitro for their biological and toxic effects and potential clinical applications. Drug Screening,Evaluation Studies, Drug, Pre-Clinical,Drug Evaluation Studies, Preclinical,Drug Evaluations, Preclinical,Evaluation Studies, Drug, Preclinical,Evaluation, Preclinical Drug,Evaluations, Preclinical Drug,Medicinal Plants Testing, Preclinical,Preclinical Drug Evaluation,Preclinical Drug Evaluations,Drug Screenings,Screening, Drug,Screenings, Drug
D006050 Gold Radioisotopes Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes. Radioisotopes, Gold
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001168 Arthritis Acute or chronic inflammation of JOINTS. Oligoarthritis,Polyarthritis,Arthritides,Oligoarthritides,Polyarthritides
D001345 Autoradiography The making of a radiograph of an object or tissue by recording on a photographic plate the radiation emitted by radioactive material within the object. (Dorland, 27th ed) Radioautography

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