PMID- 16332382 OWN - NLM STAT- MEDLINE DCOM- 20060615 LR - 20061115 IS - 0034-5288 (Print) IS - 0034-5288 (Linking) VI - 81 IP - 1 DP - 2006 Aug TI - Pathological and aetiological studies of multifocal interstitial nephritis in wasted pigs at slaughter. PG - 92-8 AB - Multifocal interstitial nephritis in pigs has been associated with several infectious agents. The objective of the present study was to investigate several different potential infectious agents associated with "white-spotted" kidneys in pigs suffering from wasting at slaughter (aged 6-8 months). Twenty-nine case kidneys (with a "white-spotted" gross appearance) classified into 3 macroscopic lesional grades, and 15 control kidneys (lacking gross lesions), were obtained from a pig abattoir. Laboratory analyses to detect potential associations with the aforementioned pathological condition with Leptospira spp., porcine circovirus type 2 (PCV2), porcine parvovirus (PPV), porcine reproductive and respiratory syndrome virus (PRRSV), and bacteria, were carried out. Microscopically, interstitial nephritis with a lymphofollicular inflammatory pattern (follicular nephritis) was observed in both case and control kidneys, with a higher frequency seen in the former ones. No leptospires were identified, although antibodies to the Pomona and Bratislava serovars were detected. Some pyogenic bacteria were also isolated from both case and control kidneys. PCV2 nucleic acid was only detected in 1 case kidney. PRRSV antigen was not found in any tested sample. Some pigs were tested positive for PPV by serology. Apparently, none of the studied agents were specifically associated as being the potential cause of the renal lesions in the studied wasted pigs. The fact that these chronic lesions may have been the consequence of a previous infection with one of these studied microorganisms, or more, and eventually with other non-tested infectious agents during the growing-finishing period, cannot be ruled out. FAU - Martinez, J AU - Martinez J AD - Departmento de Atencion Sanitaria, Salud Publica y Sanidad Animal (Histologia y Anatomia Patologica), Facultad de Ciencias Experimentales y de la Salud, Universidad Cardenal Herrera-CEU, Edificio Seminario, s/n, 46113 Moncada, Valencia, Spain. FAU - Segales, J AU - Segales J FAU - Aduriz, G AU - Aduriz G FAU - Atxaerandio, R AU - Atxaerandio R FAU - Jaro, P AU - Jaro P FAU - Ortega, J AU - Ortega J FAU - Peris, B AU - Peris B FAU - Corpa, J M AU - Corpa JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20051205 PL - England TA - Res Vet Sci JT - Research in veterinary science JID - 0401300 SB - IM MH - Abattoirs MH - Animals MH - Case-Control Studies MH - Kidney/microbiology/pathology/virology MH - Nephritis, Interstitial/microbiology/*pathology/*veterinary/virology MH - Swine MH - Swine Diseases/microbiology/*pathology/virology MH - Wasting Syndrome/microbiology/*pathology/*veterinary/virology EDAT- 2005/12/08 09:00 MHDA- 2006/06/16 09:00 CRDT- 2005/12/08 09:00 PHST- 2005/07/26 00:00 [received] PHST- 2005/10/12 00:00 [revised] PHST- 2005/10/17 00:00 [accepted] PHST- 2005/12/08 09:00 [pubmed] PHST- 2006/06/16 09:00 [medline] PHST- 2005/12/08 09:00 [entrez] AID - S0034-5288(05)00201-8 [pii] AID - 10.1016/j.rvsc.2005.10.005 [doi] PST - ppublish SO - Res Vet Sci. 2006 Aug;81(1):92-8. doi: 10.1016/j.rvsc.2005.10.005. Epub 2005 Dec 5.