Expression and bioactivity analysis of Staphylococcal enterotoxin M and N

Protein Expression and Purification, Journal Year: 2007, Volume and Issue: 56(2), P. 286 - 292

Published: Aug. 27, 2007

Language: Английский

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Influence of Subinhibitory Concentrations of Honey on Toxic Shock Syndrome Toxin -1 (TSST-1) Production by Two Strains of Staphylococcus Aureus

Food Science and Technology, Journal Year: 2015, Volume and Issue: 3(2), P. 29 - 36

Published: May 1, 2015

Antibiotic resistant bacteria are a worldwide health concern and it is essential to develop new antimicrobial agents kill these reduce the use of antibiotics.Staphyloccus aureus (S.aureus) an important medical pathogen responsible for many wound infections up 25% all strains produce toxic shock syndrome toxin (TSST-1) which stimulates release inflammatory cytokines cause fever shock.Here we report on inhibition two penicillin TSST-1 producing S.aureus by seven different honeys.Bacterial growth was reduced after 24 hours at 37 o C, from 10.0 log 10 in TSB control less than 1.0 Highland, Chilean Manuka honey.TSST-1 production 256ng/ml 30 ng/ml sub inhibitory concentrations honeys.

Language: Английский

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ACUTE TOXICITY OF SOME BIOPESTICIDES AND THEIR EFFECT ON ACETYLCHOLINESTERASE OF HONEY BEE (Apis mellifera) WORKERS

Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology, Journal Year: 2011, Volume and Issue: 2(10), P. 805 - 827

Published: Oct. 1, 2011

Biopesticides are increasingly applied throughout Egypt.However, negative effects of these compounds on the honey bee (Apis mellifera L.), most important pollinator for cultivated ecosystem, remained poorly investigated.The objective our study was to evaluate potential side five biopesticides; bioarch (Bacillus megaterium), biofly (Beauveria bassiana), biozed (Trichoderma album), protikto BTK thuringiensis kurstaki), and spintor (spinosad) mortality acetylcholinesterase activity workers.The treated workers determined after 24 h application, lethal concentrations that caused 50% mortalities (LC50) were estimated.The impacts (AChE) in vivo 48 head, thorax abdomen surviving bees.Our results indicated spinosad showed toxic action adult with LC50 11.60 mg L -1 followed by 114.12 , lower degrees toxicity obtained (LC50 = 87,412 ), 49,766 ) 15,785 ).In addition, all tested biopesticides various inhibition AchE (after application) body region concentration.On contrary, there different activation AChE application biopesticides, except bioarch, inhibitions activities obtained.

Language: Английский

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Raw Milk as a Potential Source of Food Poisoning Outbreaks

Journal of Environmental Bioremediation and Toxicology, Journal Year: 2021, Volume and Issue: 4(2), P. 23 - 26

Published: Dec. 31, 2021

In Africa, the use of poor and unhygienic methods for animal milking milk processing that leads to spoilage by microbes affects production dairy products, especially in small scale local plants. This study was conducted analyze quality safety raw collected from six different towns Kwami government area Gombe State, Nigeria. The samples were serially diluted using ten-fold dilution used aliquot 1 ml inoculate appropriate media pour plate technique. total viable count bacteria CFU/ml on agar (PCA) highest sample E U/Anchau with an average 3.8x104 CFU/ml, followed 3.0x104 B (Dirri), then 2.8x104 D Burakosuma, 2.5x104 F Dun urji, 2.3x104 C Zanbe least A at Bele as 1.8x104 CFU/ml. Five (5) bacterial species public health importance isolated identified biochemical tests namely; Enterobacter sp., Yersinia enterocolitica, Escherichia coli, Staphylococcus aureus Salmonella sp.. Out organisms isolated, sp. had occurrence 93% (n=280), enterocolitica 90% (n=270), E. coli 70% (n=210), S. 57% (n=170), finally 23% (n=70). Based microbiological outcomes, preventive measures focus training farmers employees improvement hygiene chain should be defined.

Language: Английский

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Estudo genotípico e fenotípico de estafilococos coagulase positiva potencialmente enterotoxigênicos isolados de linhas de produção de queijo minas frescal no estado de São Paulo

Published: Jan. 23, 2014

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Caracterização molecular de isolados de Staphylococcus aureus resistentes à meticilina (MRSA) obtidos de colonização e infecção de pacientes hepatopatas e transplantados hepáticos

Published: Oct. 30, 2014

Tabela -Comparação entre os resultados das culturas dos swabs nasais e

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The Role of Innate and Adaptive Immunity in Staphylococcal Scalded Skin Syndrome: A Systematic Literature Review

Scientific Journal of Dermatology and Venereology, Journal Year: 2023, Volume and Issue: 1(2), P. 35 - 39

Published: Oct. 10, 2023

The innate immune system provides immediate protection in the event of an infection, while adapted a more specific response and has ability to remember pathogens, thereby protecting body from similar infections future. This study aimed present role adaptive immunity staphylococcal scalded skin syndrome (SSSS). literature search process was carried out on various databases (PubMed, Web Sciences, EMBASE, Cochrane Libraries, Google Scholar) regarding syndrome. follows preferred reporting items for systematic reviews meta-analysis (PRISMA) recommendations. In conclusion, combination systems work together overcome SSSS infections. rapid initial defense, form memory.

Language: Английский

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Diagnostico da contaminação por bacterias patogenicas em uma industria processadora de queijo de coalho e detecção de genes associados a fatores de virulencia

Published: Aug. 25, 2006

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Caracterização molecular de >i<Staphylococcus aureus>/i< isolados de queijos artesanais da Serra da Canastra

Published: July 14, 2022

caracterização molecular é uma ferramenta importante para avaliar a população microbiana do alimento e direcionar aplicação

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