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Résultats de la recherche - 13 results

Assessment of the Feasibility of a Future Integrated Larger-Scale Epidemiological Study to Evaluate Health Risks of Air Pollution Episodes in Children.

of a small-scale field study involving 42 children. This included the preparation, collection and storage of non-invasive samples (urine, saliva), the measurement of general and respiratory health ...

Controlled Human Infection Studies: Proposals for guidance on how to design, develop and produce a challenge strain.

regulatory or advisory bodies. This document is intended to discuss fundamental principles of selection, characterization, manufacture, quality control and storage of challenge agents for international ...

Production of Alternaria Toxins in Yellow Peach (Amygdalus persica) upon Artificial Inoculation with Alternaria alternate

surprise, high contents of AT s were produced under both storage conditions even though the fungal growth was suppressed. With an increase in the incubation time, the amounts of AT s showed a steady tendency ...

Influence of reduced levels or suppression of sodium nitrite on the outgrowth and toxinogenesis of psychrotrophic Clostridium botulinum Group II type B in cooked ham.

foreseeable conditions of use and storage i.e. for 14 days at 4 °C, followed by a cold chain break for 1 h at 20 °C then up to 33 days at 8 °C. Storage times and temperatures were used to mimic those commonly ...

Determinants of placental iodine concentrations in a mild-to-moderate iodine-deficient population: an ENVIRONAGE cohort study

a long-term storage supply, but studies on the determinants of long-term placental iodine load are limited. Methods The placental iodine concentrations were determined for 462 mother-neonate pairs from the ...

Development and validation of chromatographic methods for screening and subsequent quantification of suspected illegal antimicrobial drugs encountered on the Belgian market.

these 36 compounds within 18 min (including wash and equilibration step). It was validated for sensitivity, selectivity and matrix effects. Within an analysis time of 32 min, the UHPLC- DAD method could ...

Development and validation of chromatographic methods for screening and subsequent quantification of suspected illegal antimicrobial drugs encountered on the Belgian market

selectivity and matrix effects. Within an analysis time of 32 min, the UHPLC- DAD method could quantify 32 compounds (4 showed insufficient UV absorbance) and resulted in sufficient selectivity, necessary since ...

Towards the development of innovative multi-mycotoxin reference materials as promising metrological tool for emerging and regulated mycotoxin analyses.

decreases were observed only for T-2 contents at +24 °C, in contrast to the storage at-20 and +4 °C. For the other involved toxins, the candidate material was found to be stable at-20, +4, or +24 °C. Based on ...

Comparative study of seven commercial kits for human DNA extraction from urine samples suitable for DNA biomarker-based public health studies.

yield were also tested for the presence of PCR inhibitors. Further comparisons were performed regarding the sampling time and the storage conditions. Finally, as a proof-of-concept, an important gene ...

Effect of saliva stabilisers on detection of porcine reproductive and respiratory syndrome virus in oral fluid by quantitative reverse transcriptase real-time PCR.

Keywords: Animals Excipients Porcine respiratory and reproductive syndrome virus Real-Time Polymerase Chain Reaction Reverse Transcriptase Polymerase Chain Reaction RNA, Viral Saliva specimen handling Swine ...

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