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1.
Acta cir. bras ; 38: e381323, 2023. graf
Article in English | LILACS, VETINDEX | ID: biblio-1439117

ABSTRACT

Purpose: Acute mesenteric ischemia (AMI) is a condition in pediatric surgery that ranges from intestine necrosis to death. Ischemic postconditioning (IPoC) methods were developed to reduce the damage caused by revascularization. This study aimed to evaluate the efficacy of these methods in an experimental weaning rat model. Methods: Thirty-two 21-day-old Wistar rats were allocated into four groups according to the surgical procedure performed: control, ischemia-reperfusion injury (IRI), local (LIPoC) and remote IPoC (RIPoC). At euthanasia, fragments of the intestine, liver, lungs, and kidneys were submitted to histological, histomorphometric, and molecular analyses. Results: In the duodenum, intestines, and kidneys histological alterations promoted by IRI were reversed by remote postconditioning method. In the distal ileum, the histomorphometric alterations could be reversed by the postconditioning methods with more evident effects promoted by the remote method. The molecular analysis found that the levels of expression of Bax (proapoptotic) and Bcl-XL (antiapoptotic) genes in the intestine were increased by IRI. These alterations were equally reversed by the postconditioning methods, with more evident effects of the remote method. Conclusions: IPoC methods positively reduced the damage caused by IRI in weaning rats.


Subject(s)
Animals , Rats , Reperfusion Injury , Rats, Wistar , Ischemic Postconditioning/veterinary , Mesenteric Ischemia/veterinary , Antioxidants
2.
Rev. bras. parasitol. vet ; 25(4): 516-522, Sept.-Dec. 2016. tab, graf
Article in English | LILACS | ID: biblio-830043

ABSTRACT

Abstract The transplacental transmission is the primary route of Neospora caninum infection in bovine herds around the world. This study aimed to determine the frequency of transplacental transmission of the parasite in dairy cattle of Agreste region of Pernambuco through serological tests (IFAT and ELISA). Three hundred sixteen serum samples from cows and heifers and their offspring were analyzed. The transplacental transmission rate was 72.22% (13/18) for cows and 69.23% (9/13) for heifers by IFAT. ELISA test showed transplacental transmission rate of 43.58% (17/39) for cows and 50% (9/18) for heifers. The transplacental transmission rates were similar, in both groups in test, but a higher seropositivity was found in cows by IFAT. Data were statistically analyzed using the chi-square and Fisher’s exact test. A significant relationship of dependence between seropositivity of mothers and their offspring was found. The more frequent IFAT antibody titers and ELISA levels for N. caninum were, respectively, 200 and between four (cows) and five (heifers and offspring). In the Spearman correlation, no association was found between the magnitude of antibody titers for N. caninum between mothers and their offspring. The kappa test showed an index of 0.35, indicating a mild correlation between the serological tests used. The study suggests that cows and heifers are the main transmitters of N. caninum in the studied region and that vertical transmission is the major form of transmission in dairy herds of the Agreste region of Pernambuco.


Resumo A transmissão transplacentária é a principal via de infecção do Neospora caninum nos rebanhos bovinos em todo o mundo. O presente estudo teve como objetivo determinar a frequência da transmissão transplacentária do parasita em bovinos leiteiros do Agreste Pernambucano, por meio de testes sorológicos (RIFI e ELISA). Foram analisadas 316 amostras de soro de fêmeas bovinas (vacas e novilhas) e de suas crias. A taxa de transmissão transplacentária pela RIFI foi de 72,22% (13/18) para vacas e 69,23% (9/13) para as novilhas. O ELISA teste mostrou taxa de transmissão transplacentária de 43,58% (17/39) para as vacas e 50% (9/18) para as novilhas. As taxas de transmissão transplacentária foram similares para os dois testes em geral, porém uma maior soropositividade foi encontrada nas vacas pela RIFI. Os dados foram estatisticamente analisados pelo teste de qui-quadrado e teste exato de Fischer. Foi encontrada uma relação significativa de dependência entre a soropositividade das mães e de suas crias. Os títulos de anticorpos anti- N. caninum foi de 200 na RIFI e posicionados entre o nível quatro (vacas) e cinco (novilhas e bezerros) pelo ELISA. Pela correlação de Spearman, não foi observada associação entre a magnitude de títulos de anticorpos anti- N. caninum de fêmeas com o de suas crias. O teste de concordância kappa revelou um índice de 0,35, indicando uma concordância leve entre os testes sorológicos utilizados. O estudo sugere que vacas e novilhas são as principais transmissoras do N. caninum na região estudada, sendo a transmissão vertical, a principal forma de transmissão do agente em rebanhos leiteiros do Agreste de Pernambuco.


Subject(s)
Animals , Female , Pregnancy , Cattle , Cattle Diseases/transmission , Coccidiosis/transmission , Coccidiosis/veterinary , Neospora , Infectious Disease Transmission, Vertical/veterinary , Brazil/epidemiology , Enzyme-Linked Immunosorbent Assay , Antibodies, Protozoan/blood , Cattle Diseases/epidemiology , Pregnancy Complications, Parasitic/epidemiology , Coccidiosis/diagnosis , Coccidiosis/epidemiology , Neospora/isolation & purification
3.
Rev. bras. ciênc. vet ; 21(4): 156-159, out.-dez.2014. il.
Article in Portuguese | LILACS | ID: biblio-1017229

ABSTRACT

This report describes a case of polycystic kidney disease in a male, mixed breed bovine aged one year. On clinical examination revealed a poor nutritional status, pallid mucous membranes, moderated dehydration (8 to 10%), ulcers on the ventral portion of the tongue, multifocal areas of hypotrichosis covered with scabs throughout the entire body and permanent sternolateral decubitus. The blood exam revealed aregenerative anemia and leukocytosis (neutrophilia) with deviation to the left. The necropsy revealed enlarged, pallid kidneys with a finely irregular natural surface. The histological analysis revealed the nearly complete replacement of the renal cortex by numerous small cysts, distension of the Bowman space, tubular regeneration, fibrosis, edema and mild interstitial lymphoplasmacytic inflammatory infiltrate. Keywords: diseases of cattle, kidney disease, lesions uremia, nephropathy


Subject(s)
Cattle , Uremia , Cattle Diseases , Polycystic Kidney, Autosomal Recessive , Kidney Diseases
4.
Rev. bras. ciênc. vet ; 21(3): 156-159, jul.-set. 2014. ilus, tab
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1491587

ABSTRACT

Este relato descreve um caso de doença renal policística em um bovino, macho, mestiço, com um ano de idade. Ao exame clínicoobservou-se estado nutricional ruim, mucosas pálidas, desidratação moderada (8% a 10%), úlceras na região ventral da língua,áreas multifocais de hipotricose recobertas por crostas por todo o corpo e decúbito esterno-lateral permanente. Na avaliação dohemograma observou-se principalmente anemia arregenerativa e leucocitose devido à neutrofilia com desvio à [confirmar] esquerda.Na necropsia, os rins estavam aumentados de volume, pálidos e com a superfície natural finamente irregular. Histologicamente, haviasubstituição quase completa da cortical renal por múltiplos e pequenos cistos, distensão dos espaços de Bowman, regeneraçãotubular, fibrose, edema e leve infiltrado inflamatório linfoplasmocítico intersticial.


This report describes a case of polycystic kidney disease in a male, mixed breed bovine aged one year. On clinical examinationrevealed a poor nutritional status, pallid mucous membranes, moderated dehydration (8 to 10%), ulcers on the ventral portion ofthe tongue, multifocal areas of hypotrichosis covered with scabs throughout the entire body and permanent sternolateral decubitus.The blood exam revealed aregenerative anemia and leukocytosis (neutrophilia) with deviation to the left. The necropsy revealedenlarged, pallid kidneys with a finely irregular natural surface. The histological analysis revealed the nearly complete replacementof the renal cortex by numerous small cysts, distension of the Bowman space, tubular regeneration, fibrosis, edema and mildinterstitial lymphoplasmacytic inflammatory infiltrate.


Subject(s)
Male , Animals , Cattle , Polycystic Kidney Diseases/diagnosis , Polycystic Kidney Diseases/veterinary , Kidney Diseases/veterinary , Uremia/veterinary
5.
Rev. bras. ciênc. vet ; 21(2): 76-81, abr.-jun. 2014. tab, ilus
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1491570

ABSTRACT

A dilatação do ceco (DC) é um transtorno digestivo de natureza fermentativa com maior ocorrência em vacas de leite, sendopoucos os relatos sobre a sua ocorrência em bezerros. Portanto, este trabalho teve como objetivo relatar as manifestações clínicocirúrgicas,laboratoriais e anatomopatológicas da DC diagnosticada em quatro bezerros, atendidos na Clínica de Bovinos, CampusGaranhuns da Universidade Federal Rural de Pernambuco (UFRPE). Ao exame clínico dos animais constatou-se um quadro deapatia, desidratação, alteração no apetite, motilidade do rúmen, abomaso e intestinos diminuída e ainda, fezes escassas e diarreicas.Observou-se um aumento na região da fossa paralombar direita e na auscultação, com auxílio da percussão, verificou-se umaressonância timpânica (“tilintar”). O hemograma revelou uma leucocitose por neutrofilia com desvio para esquerda regenerativo,linfocitose e monocitose, e ainda, uma hiperfibrinogenemia. Na análise do fluido ruminal verificou-se uma elevação do teor decloretos (>30mEq/L). Foi indicada uma laparotomia exploratória na região do flanco direito, em dois dos bezerros, sendo possívelconfirmar a DC. Em função da gravidade da lesão e condição clínica precária todos os animais vieram a óbito. Na necropsia,além da DC, foram evidenciadas alterações secundárias a esta enfermidade. Ratifica-se neste trabalho que a DC em bezerrosé uma enfermidade de baixa ocorrência, podendo afirmar que o prognóstico é ruim na maioria dos casos, quando diagnosticadatardiamente.


Cecal dilatation is a fermentative disorder of the digestive tract that has a greater occurrence in dairy cows and few reports incalves. Therefore, this study aimed to report the clinical, surgical, laboratorial findings and pathological lesions of the cecal distentionin four calves that were diagnosticated and treated at the Clínica de Bovinos, Campus Garanhuns, Universidade Federal Ruralde Pernambuco (UFRPE). The clinical findings were apathy, dehydration, lack of appetite, decrease in ruminal, abomasal andintestinal motility and diarrheal and scarce feces. The abdomen was distended on the right side (paralumbar fossa) and there wasa tympanic resonance in the same area. The blood assays have shown leukocytosis with neutrophilia with a regenerative left shift,lymphocytosis and monocytosis, and also hyperfibrinogenemia. The ruminal fluid analysis showed a high content of chlorides(>30mEq/L). Exploratory laparotomy on the right flank was performed on two calves that confirmed cecal distention. The severityof the injury and poor clinical condition lead animals to death. At necropsy, in addition to DC, minor changes were observed inthis disease. Is ratified this study that DC is a disease in calves of low occurrence and can say that the prognosis is poor in mostcases, when diagnosed late.


Subject(s)
Animals , Cattle , Cecum , Cecal Diseases/veterinary , Digestive System Diseases/veterinary , Intestine, Large , Diagnosis
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