Pathological evaluation of effect of anti-rheumatic drugs on type II collagen-induced arthritis in Lewis rats. 1997

M Takeshita, and T Sugita, and I Takata
Marugo Research Service, Tanabe Seiyaku Co., Ltd., Osaka, Japan.

The effects of anti-rheumatic drugs (dexamethasone 0.1 mg/kg and naproxen 5 mg/kg) were evaluated immunologically and histopathologically on type II collagen-induced arthritis in Lewis rats. Increased paw volume in the hind limbs was significantly suppressed in the groups treated with dexamethasone or naproxen, but noticeable retardation of body weight gain was observed in the group treated with dexamethasone. Serum anti-type II collagen IgG was significantly suppressed in the group treated with dexamethasone but not naproxen. Histopathological evaluation by our grading system, classification of the stages in arthritic lesion development, revealed suppression of the inflammatory changes in the tarsal joints of the animals treated with dexamethasone or naproxen. From our results, histopathological evaluation is considered to be more suitable for assessment of the efficacy of anti-rheumatic drugs on type II collagen-induced arthritis, an animal model for human rheumatoid arthritis.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D009288 Naproxen An anti-inflammatory agent with analgesic and antipyretic properties. Both the acid and its sodium salt are used in the treatment of rheumatoid arthritis and other rheumatic or musculoskeletal disorders, dysmenorrhea, and acute gout. Aleve,Anaprox,Methoxypropiocin,Naprosin,Naprosyn,Naproxen Sodium,Proxen,Sodium Naproxenate,Synflex,Naproxenate, Sodium,Sodium, Naproxen
D011917 Rats, Inbred Lew An inbred strain of rat that is used in BIOMEDICAL RESEARCH. Rats, Inbred Lewis,Rats, Lew,Inbred Lew Rat,Inbred Lew Rats,Inbred Lewis Rats,Lew Rat,Lew Rat, Inbred,Lew Rats,Lew Rats, Inbred,Lewis Rats, Inbred,Rat, Inbred Lew,Rat, Lew
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D003907 Dexamethasone An anti-inflammatory 9-fluoro-glucocorticoid. Hexadecadrol,Decaject,Decaject-L.A.,Decameth,Decaspray,Dexasone,Dexpak,Hexadrol,Maxidex,Methylfluorprednisolone,Millicorten,Oradexon,Decaject L.A.
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
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

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