Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0013911 (emaciation)
 1,059 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In a sheep which was euthanased because of severe emaciation and weakness, slight thickening of the ileum was seen grossly. Microscopically there was a granulomatous ileitis with obliterative lymphangitis and lymphangiectasis. Granulomatous lesions were also present in the liver and some mesenteric lymph nodes. Large numbers of acid-fast bacilli were present within epithelioid macrophages in the lamina propria of the ileum. Although the identity of the Mycobacterium spp. involved was not established, the possibility of paratuberculosis is discussed. The apparent rarity of this disease in sheep in South Africa is considered. Particular attention is drawn to the absence of diarrhoea in this case, to the slightness of the gross changes and to the importance of submitting material for mycobacterial culture.
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PMID:A mycobacteriosis in a sheep resembling paratuberculosis (Johne's disease). 727 75

The role that wildlife may play in the transmission of Mycobacterium avium subspecies paratuberculosis (Map), the causative agent of Johne's disease (JD), and the potential consequences of infection in these populations are being given increasing consideration. A yearling male Rocky Mountain bighorn sheep (Ovis canadensis canadensis) from southwestern Alberta, Canada, was found infected with Map in August 2009. Clinical signs of emaciation and diarrhea and histologic findings of diffuse granulomatous enteritis of the distal ileum, lymphadenitis of the mesenteric lymph nodes, and lymphangitis of the ileum were similar to previously described cases of JD in bighorn sheep. Infection with Map was confirmed by bacterial isolation through fecal culture, acid-fast staining, and polymerase chain reaction (PCR) of IS900. The Map1506 gene was sequenced, and the isolate was identified as a Cattle (Type II) strain. In a follow-up herd-level survey, three of 44 fecal samples (7%) from individual bighorn sheep from the same herd as the index case were PCR-positive and identified as Type II Map strains. Twenty-five samples from a distant bighorn population were negative. Additional strain typing of the isolates from the index case and the positive fecal samples was done by sequencing three discriminatory short sequence repeat (SSR) regions. All four SSR profiles differed from one another, suggesting multiple introductions or a long-existing circulation of Map within this bighorn population. Detailed molecular analyses are essential for understanding and managing diseases at the wildlife-livestock interface.
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PMID:Occurrence, diagnosis, and strain typing of Mycobacterium avium subspecies paratuberculosis infection in Rocky Mountain bighorn sheep (Ovis canadensis canadensis) in southwestern Alberta. 2224 68