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Related Concept Videos

The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):

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Related Experiment Video

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High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
12:33

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

[Not Available].

Torsten Schulz1, Klaus Senkpiel, Helge Ohgke

  • 1Institut für Medizinische Mikrobiologie und Hygiene der Universität zu Lübeck, Lübeck.

Mycotoxin Research
|April 23, 2013
PubMed
Summary

Mould spore extracts showed inhibitory effects in cytotoxicity tests. However, only one extract contained detectable mycotoxins, indicating varied toxicity among mould strains.

Area of Science:

  • Mycology
  • Toxicology
  • Cell Biology

Context:

  • Moulds produce various secondary metabolites, including mycotoxins, which can pose health risks.
  • Cytotoxicity assays are crucial for evaluating the toxic potential of biological substances.
  • Assessing mould spore toxicity is important for public health and safety.

Purpose:

  • To evaluate the toxic potential of mould spore extracts using multiple cytotoxicity assays.
  • To compare the sensitivity of different assays (MB-assay, MTT-assay, pollen tube growth test) to mycotoxins.
  • To determine the extent to which mycotoxins contribute to the observed cytotoxic effects.

Summary:

  • Eight mould spore extracts were tested for toxicity using human lung cell carcinoma (A549) with the MB-assay and MTT-assay, and a plant-based pollen tube growth test.

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  • The sensitivity of these assays to known mycotoxins was established prior to testing the extracts.
  • All extracts exhibited inhibitory effects, but only one extract was confirmed to contain mycotoxins via High-Performance Liquid Chromatography (HPLC).

    • Impact:

    • Highlights the need for sensitive and specific methods to detect mould-induced toxicity.
    • Suggests that non-mycotoxin compounds in mould spores may also contribute to cytotoxicity.
    • Informs risk assessment strategies for mould exposure in indoor environments and food safety.