Resistência antimicrobiana de Salmonella agona oriundas de várias regiões do Brasil

Solari, Claude André; Reis, Eliane Moura Falaviana dos; Dias, José Cavalcante de Albuquerque Ribeiro; Hofer, Ernesto

doi:10.1590/s0074-02761986000100002

Cited by 5 publications

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“…An increase in the occurrence of bacterial strains resistant to more than one commercial antibiotic isolated from natural environments is cause for concern. Increased resistance has typically been ascribed to the indiscriminate use of drugs with antibiotic properties on human beings, livestock protection and food production, resulting in the development of resistant strains 23 . Our data demonstrate that multiple resistance is frequently found in strains from environmental samples where this type of exposure seems unlikely.…”

Section: Discussionmentioning

confidence: 99%

Antibacterial activity of GUAVA, Psidium guajava Linnaeus, leaf extracts on diarrhea-causing enteric bacteria isolated from Seabob shrimp, Xiphopenaeus kroyeri (Heller)

Gonçalves¹,

Neto²,

Bezerra³

et al. 2008

Rev. Inst. Med. trop. S. Paulo

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SUMMARYGuava leaf tea of Psidium guajava Linnaeus is commonly used as a medicine against gastroenteritis and child diarrhea by those who cannot afford or do not have access to antibiotics. This study screened the antimicrobial effect of essential oils and methanol, hexane, ethyl acetate extracts from guava leaves. The extracts were tested against diarrhea-causing bacteria: Staphylococcus aureus, Salmonella spp. and Escherichia coli. Strains that were screened included isolates from seabob shrimp, Xiphopenaeus kroyeri (Heller) and laboratory-type strains. Of the bacteria tested, Staphylococcus aureus strains were most inhibited by the extracts. The methanol extract showed greatest bacterial inhibition. No statistically significant differences were observed between the tested extract concentrations and their effect. The essential oil extract showed inhibitory activity against S. aureus and Salmonella spp. The strains isolated from the shrimp showed some resistance to commercially available antibiotics. These data support the use of guava leaf-made medicines in diarrhea cases where access to commercial antibiotics is restricted. In conclusion, guava leaf extracts and essential oil are very active against S. aureus, thus making up important potential sources of new antimicrobial compounds.

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Section: Discussionmentioning

confidence: 99%

Antibacterial activity of GUAVA, Psidium guajava Linnaeus, leaf extracts on diarrhea-causing enteric bacteria isolated from Seabob shrimp, Xiphopenaeus kroyeri (Heller)

Gonçalves¹,

Neto²,

Bezerra³

et al. 2008

Rev. Inst. Med. trop. S. Paulo

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“…Os principais reservatórios de Salmonella são os suínos, aves e bovinos, 35 frequentemente envolvidos em surtos. 36,37 Os resultados de atividade antifúngica mostraram que o EBH de D. scabra apresentou atividade antifúngica contra as leveduras testadas, sendo mais efetivo contra Candida glabrata (CIM = 62,5 µg mL -1 ). Contra C. albicans e C. parapsilosis, os valores de CIM foram de 250 e 125 µg mL -1 , respectivamente.…”

Section: Avaliação Da Atividade Antimicrobianaunclassified

Evaluation of the Antimicrobial Potential of a "Yam" (Dioscorea scabra) Against Microorganisms that Cause Veterinary Infections

Tenfen¹,

Siebert²,

Zimtah³

et al. 2019

Rev. Virtual Quim

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The aim of this study was to evaluate the biological potential of the crude hydroalcoholic extract (EBH) and fractions (FAcOEt and FBuOH) from the roots of Dioscorea scabra. The EBH and its fractions were submitted to antimicrobial activity tests against bacteria with and without cell-wall, and yeasts from the Candida genus. The phytochemical profile of EBH was determined by colorimetric assays and analysis by HPLC in comparison to standard diosgenin. Phytochemical analysis showed the presence of phenols, tannins, flavonoids, xanthones, catechins, steroids, free triterpenoids and saponins, characteristics of the genus. By HPLC analysis, it was possible to identify the presence of diosgenin in the analysed extract. The species was active against all tested bacterial strains, being FBuOH the most active against Mycoplasma arginini species. In the antifungal activity test, samples showed activity against Candida albicans, C. parapsilosis and C. glabrata, with the EBH and FBuOH showing the best results.

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Antimicrobial resistance among Salmonella serovars isolated from different sources in Brazil during 1978?1983

Campos

Hofer

1989

Antonie van Leeuwenhoek

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A total of 748 Salmonella strains (97 serovars) isolated from human (291), animal (119), environmental (141), food (102) and animal feed (95) sources were examined for resistance to 9 antimicrobial agents. Most of the human isolates were from hospitalized patients (282). An overall resistance rate of 98.8% was determined with 100% for human and environmental isolates. Resistance to sulfadiazine (87.7%) was most common, followed by streptomycin (61.2%), ampicillin (39%) and trimethoprim-sulphamethoxazole (37.9%). Fifty one different resistance patterns were identified with Su (164 strains), Su-Sm (122) and Su-Sm-Tc-Cm-Km-Ap-Nx-Gm-Tm (95) predominating, the latter occurring only in human isolates. Multiple resistance was most frequently found among human isolates, particularly in S. derby and S. typhimurium strains. The relationship between antibiotic resistance, serovar and source of isolation of the Salmonella strains is discussed.

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Resistência antimicrobiana de Salmonella agona oriundas de várias regiões do Brasil

Cited by 5 publications

References 0 publications

Antibacterial activity of GUAVA, Psidium guajava Linnaeus, leaf extracts on diarrhea-causing enteric bacteria isolated from Seabob shrimp, Xiphopenaeus kroyeri (Heller)

Antibacterial activity of GUAVA, Psidium guajava Linnaeus, leaf extracts on diarrhea-causing enteric bacteria isolated from Seabob shrimp, Xiphopenaeus kroyeri (Heller)

Evaluation of the Antimicrobial Potential of a "Yam" (Dioscorea scabra) Against Microorganisms that Cause Veterinary Infections

Antimicrobial resistance among Salmonella serovars isolated from different sources in Brazil during 1978?1983

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