title: Collared pecary (Tayassu tajacu) as a new model of renal ischemic injury induced by clamping the renal artery.
abstract: OBJECTIVE
  The use of the collared peccary as an experimental model for ischemic nephropathy.
  
  
  METHODS
  A total of 12 collared peccary (Tayassu tajacu) was used and ischemic nephropathy was induced in six of these animals that constituted the experimental group (G1) while the other six formed the control group (G2). Ischemic nephropathy was induced surgically by partial occlusion of the left renal artery. The disease course was assessed by hematological tests, serum chemistry, urinalysis, ultrasound (US) and doppler ultrasound function of the renal artery before induction, and at five, 10, 15 and 20 days after surgery. Twenty days after the occlusion, unilateral nephrectomy and histopathological examination were performed to assess renal morphology.
  
  
  RESULTS
  Statistical analysis by Fischer's test showed a significant difference (p<0.05) between the control group and the experimental group. The histopathological examination showed glomerular, tubular and interstitial lesions. In the experimental group, 83.3% (5 /6) showed moderate renal lesions and only 16.7% (1/6) were classified with no lesions. The ultrasound examination of the right kidney presented statistical difference between day 5 and day 10 post occlusion.
  
  
  CONCLUSIONS
  The collared peccary as a good experimental model for ischemic renal disease, because it could be manipulated during the research time without death, with health conditions that permit any subsequent procedure for disease therapy.
authors.affiliation: Veterinary Morphophisiology Department, Federal University of Piaui, Teresina, PI, Brazil.
authors.forename: Dayseanny de Oliveira
authors.initials: Dde O
authors.lastname: Bezerra
authors.affiliation: Veterinary Morphophisiology Department, UFPI, Teresina, PI, Brazil.
authors.forename: Matheus Levi Tajra
authors.initials: ML
authors.lastname: Feitosa
authors.affiliation: Veterinary Morphophisiology Department, UFPI, Teresina, PI, Brazil.
authors.forename: Hatawa Melo de
authors.initials: HM
authors.lastname: Almeida
authors.affiliation: Veterinary Clinical and Surgery Department, UFPI, Teresina, PI, Brazil.
authors.forename: Francisco Assis Lima
authors.initials: FA
authors.lastname: Costa
authors.affiliation: Veterinary Patology Department, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
authors.forename: Juliana Fortes Vilarinho
authors.initials: JF
authors.lastname: Braga
authors.affiliation: Veterinary Clinical and Surgery Department, UFPI, Teresina, PI, Brazil.
authors.forename: Francisco de Assis Leite
authors.initials: Fde A
authors.lastname: Souza
authors.affiliation: Veterinary Morphophisiology Department, UFPI, Teresina, PI, Brazil.
authors.forename: Flávio Ribeiro
authors.initials: FR
authors.lastname: Alves
authors.affiliation: Veterinary Morphophisiology Department, UFPI, Teresina, PI, Brazil.
authors.forename: Gerson Tavares
authors.initials: GT
authors.lastname: Pessoa
authors.affiliation: Veterinary Morphophisiology Department, UFPI, Teresina, PI, Brazil.
authors.forename: Maria Acelina Martins de
authors.initials: MA
authors.lastname: Carvalho
mesh_terms: D000818:Animals; D003250:Constriction; D004195:Disease Models, Animal; D007511:Ischemia / Q000209:etiology*; D007668:Kidney / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008297:Male; D009336:Necrosis; D009393:Nephritis / Q000209:etiology / Q000473:pathology; D012016:Reference Values; D012077:Renal Artery / Q000473:pathology / Q000601:surgery; D012078:Renal Artery Obstruction / Q000209:etiology* / Q000473:pathology; D015203:Reproducibility of Results; D013552:Swine; D013997:Time Factors; D014463:Ultrasonography