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1.
Arq. bras. med. vet. zootec. (Online) ; 71(5): 1488-1496, set.-out. 2019. tab
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1038649

ABSTRACT

A ordem dos Passeriformes é uma das mais pressionadas pelas ações antrópicas, especialmente as relativas ao tráfico de animais, que, devido às más condições de manejo e higiênico-sanitárias, favorecem a infecção dos espécimes por patógenos virulentos e zoonóticos, como cepas de Escherichia coli e Salmonella spp., cujo isolamento em suabes cloacais, bem como a análise dos genes de virulência das cepas de E. coli foram objetivos do estudo. Para isso, 120 Passeriformes silvestres nativos, recebidos pelo Cetas/CE, foram avaliados individualmente. As cepas isoladas foram submetidas a teste de disco difusão para determinação da sensibilidade aos antimicrobianos. Em etapa posterior, foi realizada PCR para a detecção de oito genes de virulência dos principais patotipos diarreiogênicos de E. coli. Quanto aos resultados, nenhuma cepa de Salmonella spp. foi isolada, no entanto a ocorrência de E. coli foi de 40,8%. Foi observada elevada resistência, principalmente aos antimicrobianos tetraciclina, ampicilina e sulfazotrim, ocorrendo multirresistência em 42,8% das cepas. Pela análise molecular, foram diagnosticados quatro entre os nove genes pesquisados, com a identificação de EPEC típicas, EPEC atípicas, ETEC, EHEC e EAEC. Os resultados apontam para a importância de Passeriformes como possíveis disseminadores de zoonoses.(AU)


The order Passeriformes is one of the most pressured by anthropic actions, especially those related to animal trafficking. Due to poor sanitary and hygienic conditions, the infection of the specimens is favored by virulent and zoonotic pathogens such as strains of Escherichia coli and Salmonella spp., whose isolation in cloacal swabs as well as the analysis of the virulence genes of E. coli strains were the objectives of the study. For this, 120 native wild Passeriformes, received by CETAS/CE were individually evaluated. The isolated strains were submitted to diffusion disc test to determine sensitivity to antimicrobials. In a later stage, PCR was performed for the detection of eight virulence genes from the main E. coli diarrhoeagenic pathogens. Regarding the results, no strain of Salmonella spp. was isolated; however, the occurrence of E. coli was 40.8%. High resistance was observed, mainly to the antimicrobials Tetracycline, Ampicillin and Sulfazotrim, with multi-resistance in 42.8% of the strains. By molecular analysis, four of the nine genes were diagnosed, identifying typical EPEC, atypical EPEC, ETEC, EHEC and EAEC. The results point to the importance of Passeriformes as possible disseminators of zoonoses.(AU)


Subject(s)
Salmonella/isolation & purification , Salmonella/pathogenicity , Passeriformes/parasitology , Escherichia coli/isolation & purification , Escherichia coli/pathogenicity , Animals, Wild/parasitology
2.
Arq. bras. med. vet. zootec. (Online) ; 70(3): 823-829, maio-jun. 2018. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-911518

ABSTRACT

This study aimed to identify serogroups of Escherichia coli important for human health in isolates from psittacine of illegal wildlife trade in Ceará State. In addition, hemolysis and production of Extended Spectrum Beta-Lactamases (ESBL) was assessed in the isolates. A total of 78 E. coli strains isolated from different Psittaciformes species from a wildlife rehabilitation center in Fortaleza, Brazil. The isolates used in this study were previously identified and stored. Serogroup identification was performed using polyvalent sera for EPEC (O55, O111, O119, O114, O125, O86, O126, O127, O128), EIEC (O136, O124) and EHEC (O157). ESBL detection was performed with double disk synergy method. For hemolysis detection, isolates were inoculated in blood agar base enriched with ovine blood. Only 31 (39.7%) isolates were seropositive and the most frequent were O127, O114, O128 and O111. There was no agglutination for serogroups O55, O124, O136 or O157. Considering both seropositive and seronegative isolates, 9 (11.5%) and 35 (44.9%) presented hemolysis and ESBL production, respectively. In conclusion, the investigated psittacine from illegal wildlife trade hosted ESBL-producing E. coli strains and some belong to important serogroups often linked to severe human infections.(AU)


Este trabalho teve como objetivo identificar sorogrupos de E. coli importantes para a saúde humana, oriundos de psitacídeos provenientes do tráfico no estado do Ceará, assim como detectar atividade hemolítica e produção de betalactamase de espectro estendido (ESBL). Foram testadas 78 cepas de Escherichia coli provenientes de psitaciformes do Centro de Triagem de Animais Silvestres, Fortaleza, CE. Para a identificação dos sorogrupos, utilizaram-se soros polivalentes EPEC (O55, O111, O119, O114, O125, O86, O126, O127, O128), EIEC (O136, O124) e EHEC (O157). Para detecção de ESBL, as cepas foram submetidas ao método de aproximação de disco e, para a detecção de hemolisina, foram plaqueadas em ágar sangue base enriquecido com sangue de carneiro. No geral, 31 (39,7%) das amostras foram soropositivas. Os sorogrupos mais frequentemente detectados foram O127, O114, O128 e O111. Não houve positividade para os sorogrupos O55, O124, O136 e O157. Considerando-se as amostras sororreagentes e não sororreagentes, observou-se que nove (11,5%) e 35 (44,9%) cepas de E. coli apresentaram produção de hemolisinas e de ESBL, respectivamente. Em conclusão, constatou-se que psitacídeos provenientes do tráfico de animais silvestres albergam cepas de E. coli produtoras de ESBL e providas de importantes sorogrupos implicados em graves infecções humanas.(AU)


Subject(s)
Animals , beta-Lactamases , Escherichia coli/isolation & purification , Parrots/microbiology , Hemolysin Proteins/analysis , Serogroup
3.
Arq. bras. med. vet. zootec ; 68(6): 1732-1736, nov.-dez. 2016. tab
Article in Portuguese | LILACS, VETINDEX | ID: biblio-827949

ABSTRACT

This study was conducted to detect enterobacteria in captive Grey-breasted parakeet from a commercial breeding located in the state of Ceara. 25 individual cloacal swabs were collected and this material was subjected to microbiological processing to obtain the bacterial isolation, identification, and evaluation of the sensitivity profile to antimicrobials. The bacterial isolation in ten samples was determined, belonging to the genera Enterobacter, Hafnia, Serratia, Escherichia, Pantoea and Klebsiella, in which these last three corresponded to the bacteria most isolated, with respective percentages of 28.6%, 21.4%, and 21.4%. As for the sensitivity profile, antibiotics to which the bacteria showed more resistance were trimethoprim-sulfamethoxazole (57%), tetracycline (21%), and azithromycin (43%). Thus, it was shown that the parakeets were carriers of Enterobacteriaceae with resistance characteristics.(AU)


Subject(s)
Animals , Disk Diffusion Antimicrobial Tests/veterinary , Drug Resistance, Bacterial , Enterobacteriaceae/isolation & purification , Parrots/microbiology
4.
Arq. bras. med. vet. zootec ; 66(5): 1435-1438, Sep-Oct/2014. tab
Article in English | LILACS | ID: lil-729781

ABSTRACT

The present study reports the isolation of Salmonella enterica in organs of free-living domestic pigeons. In the clinic examination, the presence of feces in the peri-cloacal and abdominal regions were observed, as well as symptoms such as cachexy, incoordination and opisthotonos. Before any therapeutic protocol was applied the bird died and a necropsy was then performed for the removal of spleen, liver, kidney and intestine for bacteriological examination and antibiotic sensitivity test. Salmonella enterica subsp.enterica (O:4,5:i-) and Salmonella enterica subsp. enterica serovar Typhimurium were isolated from the liver and intestine and the sensitivity test demonstrated that these strains are sensitive to several antibiotics...


O presente trabalho relata o isolamento de Salmonella enterica em órgãos de um pombo doméstico de vida livre. No exame clínico foi observada a presença de fezes pericloacal na região ventral, caquexia, incoordenação motora e opistótono. Antes de iniciar um protocolo terapêutico, a ave foi a óbito, e, em seguida, foi realizada uma necropsia para remoção do baço, fígado, rim e intestino para exame bacteriológico e teste de sensibilidade a antibióticos. Foi isolado Salmonella enterica subsp. enterica (O:4,5:i-) e Salmonella enterica subsp. enterica sorovar Typhimurium do fígado e intestino, e o teste de sensibilidade demonstrou que essas cepas são sensíveis a vários antimicrobianos...


Subject(s)
Animals , Columbidae , Salmonella enterica/isolation & purification , Microbial Sensitivity Tests/veterinary , Ataxia/veterinary , Autopsy/veterinary , Cachexia/veterinary , Feces
5.
Arq. bras. med. vet. zootec ; 66(3): 965-968, 06/2014. tab
Article in English | LILACS | ID: lil-718081

ABSTRACT

This study showed a low prevalence of Salmonella spp. in captive psittacines from zoos and a commercial establishment of Fortaleza. None of the isolated serotypes (S. Lexington, S. Saintpaul and S. Newport) have yet been reported in Amazona aestiva, Ara chloroptera or Melopsittacus undulatus. However, the fact that most birds presented negative for Salmonella spp. may not imply the absence of this pathogen in these birds, since the intermittent excretion is a well-known characteristic of this microorganism...


A manutenção de aves em cativeiro reúne condições que favorecem a disseminação de doenças infecciosas, sendo a Salmonella uma dessas doenças infecciosas que acomete os psitacídeos. Portanto o objetivo do presente estudo foi isolar e identificar Salmonella spp. em Psittaciformes mantidos em criatórios comerciais e conservacionistas da Região Metropolitana de Fortaleza. Para o estudo, foram coletados swabs cloacais de 182 psitacídeos clinicamente sadios. Os resultados mostraram que três psitacídeos avaliados (1,65%) foram positivos: Amazona aestiva (Salmonella Lexington), Ara chloroptera (Salmonella Saintpaul) e Melopsittacus undulatus (Salmonella Newport). De acordo com a literatura científica, não há registro desses sorotipos em psitacídeos. Esta pesquisa evidenciou uma baixa prevalência de Salmonella spp. em Psittaciformes mantidos em criatórios comerciais e conservacionistas da Região Metropolitana de Fortaleza...


Subject(s)
Animals , Psittaciformes/immunology , Psittaciformes/microbiology , Salmonella/isolation & purification , Birds/microbiology , Serotyping/veterinary
6.
Braz. j. med. biol. res ; 37(12): 1811-1818, Dec. 2004. ilus, tab
Article in English | LILACS | ID: lil-388068

ABSTRACT

Activation of NFkappaB plays a pivotal role in many cellular processes such as inflammation, proliferation and apoptosis. In Drosophila, nuclear translocation of the NFkappaB-related transcription factor Dorsal is spatially regulated in order to subdivide the embryo into three primary dorsal-ventral (DV) domains: the ventral presumptive mesoderm, the lateral neuroectoderm and the dorsal ectoderm. Ventral activation of the Toll receptor induces degradation of the IkappaB-related inhibitor Cactus, liberating Dorsal for nuclear translocation. In addition, other pathways have been suggested to regulate Dorsal. Signaling through the maternal BMP member Decapentaplegic (Dpp) inhibits Dorsal translocation along a pathway parallel to and independent of Toll. In the present study, we show for the first time that the maternal JAK/STAT pathway also regulates embryonic DV patterning. Null alleles of loci coding for elements of the JAK/STAT pathway, hopscotch (hop), marelle (mrl) and zimp (zimp), modify zygotic expression along the DV axis. Genetic analysis suggests that the JAK kinase Hop, most similar to vertebrate JAK2, may modify signals downstream of Dpp. In addition, an activated form of Hop results in increased levels of Cactus and Dorsal proteins, modifying the Dorsal/Cactus ratio and consequently DV patterning. These results indicate that different maternal signals mediated by the Toll, BMP and JAK/STAT pathways may converge to regulate NFkappaB activity in Drosophila.


Subject(s)
Animals , Male , Female , Pregnancy , Body Patterning , DNA-Binding Proteins/physiology , Drosophila Proteins/physiology , Drosophila/embryology , Nuclear Proteins/physiology , Protein-Tyrosine Kinases , Phosphoproteins/physiology , Trans-Activators/physiology , Transcription Factors/physiology , Body Patterning/genetics , DNA-Binding Proteins/genetics , DNA-Binding Proteins/metabolism , Drosophila Proteins/genetics , Drosophila Proteins/metabolism , Drosophila/genetics , Electrophoresis, Polyacrylamide Gel , Immunoblotting , NF-kappa B/physiology , Nuclear Proteins/genetics , Nuclear Proteins/metabolism , Protein-Tyrosine Kinases , Phosphoproteins/genetics , Phosphoproteins/metabolism , Signal Transduction , Trans-Activators/genetics , Trans-Activators/metabolism , Transcription Factors/genetics , Transcription Factors/metabolism
7.
Arq. biol. tecnol ; 39(4): 887-92, dez.1996. tab, graf
Article in English | LILACS | ID: lil-238885

ABSTRACT

Nineteen avaiable strains of Bradyrhizobium sp were used to test two forage legumes, Crotalaria juncea(Crotalaria) and Cajanus cajans (Guandu) for symbiotic N-fixation ability. Greenhouse experiments were conducted for nine weeks in order to evaluate shoot, root, and nodule dry weight, nodule number, and shoot nitrogen content. Nine strains presented relative nitrogen efficiency (RNE) over 100 per cent with Crotalaria cultivar, whereas only 3 strains were more efficient with Guandu. Strain 633 was the only which presented a high yield with both cultivars. Finally, plant dry weight accumulation followed N accumulation obtaining 0.6757 correlation coefficient for Crotalaria and Guandu, respectively


Subject(s)
beta-Galactosidase , Erwinia , Fermentation , Lactose
8.
Pediatria (Säo Paulo) ; 5(6): 353-70, 1983.
Article in Portuguese | LILACS | ID: lil-18943

ABSTRACT

Idades estatural, ponderal, ossea e dentaria de 734 meninas brancas, brasileiras, da regiao de Bauru, Estado de Sao Paulo, foram estimados com o objetivo de verificar o comportamento desses indices durante a puberdade. A amostra, cujas faixas etarias variaram de seis aos 16 anos, foi separada em individuos puberes e impuberes pela ocorrencia da menarca atraves do metodo retrospectivo. A idade ossea foi a que melhor discriminou as aceleracoes ou atrasos da puberdade. A idade dentaria acompanhou a idade cronologica. O estirao de crescimento em altura e peso teve seu maximo incremento aos 12 anos. As altas correlacoes dos varios indices entre si e com a idade cronologica encontradas na amostra global, sofreram significantes decrescimos nas faixas etarias mais envolvidas na puberdade. Ficou estabelecido que as tabelas de crescimento devem conter valores separados para individuos puberes e impuberes


Subject(s)
Child , Adolescent , Humans , Female , Body Height , Body Weight , Growth , Puberty
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