Chronic relapsing experimental allergic encephalomyelitis in the Lewis rat.
Chronic relapsing experimental allergic encephalomyelitis (CR-EAE) was induced in rats with an emulsion of guinea-pig spinal cord tissue (GPSC) in complete Freund's adjuvant (CFA) enriched with Mycobacterium tuberculosis H37RA (Tbc). 78% of the sensitized rats developed a CR-EAE showing 2 to 3 clinical relapses during the first 40 days. After 60-80 days, approximately half of the rats with CR-EAE had a further relapse which was followed by complete recovery in only 35% of the cases. The remaining 65% of these animals showed a progressive state of the disease, characterized by paralysis or severe motor deficit, eventually leading to death. CR-EAE in rats showed some similarities to multiple sclerosis in man (MS) and it may be a useful model for the study of this disease.
D000818:Animals; D004681:Encephalomyelitis, Autoimmune, Experimental / Q000209:etiology* / Q000473:pathology; D005260:Female; D006168:Guinea Pigs; D009420:Nervous System / Q000473:pathology; D051381:Rats; D011917:Rats, Inbred Lew; D012008:Recurrence