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Environment
コレクションと真菌 DNA の分析のための産業大気サンプルの抽出
コレクションと真菌 DNA の分析のための産業大気サンプルの抽出
JoVE Journal
Environment
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JoVE Journal Environment
Collection and Extraction of Occupational Air Samples for Analysis of Fungal DNA

コレクションと真菌 DNA の分析のための産業大気サンプルの抽出

Full Text
13,139 Views
12:02 min
May 2, 2018

DOI: 10.3791/56730-v

Angela R. Lemons1, William G. Lindsley1, Brett J. Green1

1Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health,Centers for Disease Control and Prevention

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Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

This protocol outlines a method for extracting DNA from occupational air samples to amplify and sequence fungal ITS regions. It aims to identify fungal diversity in environments, which is crucial for assessing potential health hazards in occupational settings.

Key Study Components

Area of Science

  • Occupational health
  • Environmental microbiology
  • Fungal diversity assessment

Background

  • Fungal exposure can lead to negative health effects in workers.
  • Traditional methods may overlook certain fungal species.
  • DNA sequencing offers a more comprehensive detection approach.
  • This method enhances occupational exposure assessments.

Purpose of Study

  • To identify potential fungal hazards in occupational environments.
  • To improve detection of fungal species using DNA sequencing.
  • To address key questions regarding worker exposure to fungi.

Methods Used

  • Air sampling using a NIOSH aerosol sampler.
  • Assembly of air-sampling filter cassettes.
  • DNA extraction from collected air samples.
  • Amplification and sequencing of fungal ITS regions.

Main Results

  • Identification of fungal species not detected by traditional methods.
  • Enhanced understanding of fungal diversity in occupational settings.
  • Potential health risks associated with specific fungal exposures.
  • Methodology validated for occupational health studies.

Conclusions

  • The protocol effectively identifies fungal hazards in work environments.
  • Sequencing-based methods provide a comprehensive assessment of fungal diversity.
  • This approach can inform health risk assessments and preventive measures.

Frequently Asked Questions

What is the main goal of this study?
The main goal is to identify potential fungal hazards in occupational settings through DNA extraction and sequencing.
How does this method improve fungal detection?
It allows for the identification of fungal species that traditional culture or microscopy methods may miss.
What are the key components of the air sampling method?
The method involves assembling filter cassettes, air sampling, and subsequent DNA extraction and sequencing.
Why is fungal diversity important in occupational health?
Understanding fungal diversity helps assess health risks associated with exposure to various fungal species.
What are the advantages of using DNA sequencing in this context?
DNA sequencing provides a more comprehensive view of fungal diversity compared to traditional methods.
Can this method be applied to other environments?
Yes, while focused on occupational settings, the method can be adapted for other environments to assess fungal diversity.

環境内で菌類の多様性を決定する、衛生学健康への危険を識別するために利用されている方法です。このプロトコルでは、真菌の ITS 領域の拡大そして配列の産業空気サンプルからの DNA 抽出について説明します。このアプローチは、伝統的な評価方法によって見落とされることができる多くの菌類の種組成を検出します。

このエアサンプリングおよびDNA抽出方法の全体的な目標は、職業環境内の潜在的な真菌の危険性を特定するために、増幅、配列決定、および分類学的に配置できる真菌ゲノムDNAを取得することです。この方法は、労働者が健康に悪影響を与える可能性のある真菌の危険性など、職業暴露評価分野の重要な質問に答えるのに役立ちます。この手法の主な利点は、培養法や顕微鏡法を使用して検出されないままの真菌種を、シーケンシングベースのアプローチを使用して解明できることです。

エアを組み立てるにはampフィルターカセットは、ベースピースの格子面にセルロースフィルターサポートパッドを置き、次にフィルター鉗子の助けを借りて、収集側を上に向けてフィルターサポートパッドの上にフィルターを置きます。組み立て後、延長カウルを挿入し、手動プレスまたは空気圧プレスでしっかりと均等に押し下げてフィルターカセットをシールします。次に、組み立てたカセットをNIOSHエアロゾルサンプラーの上に取り付け、できるだけ押し下げます。

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環境科学 問題 135 職業採取 微生物学 ゲノム DNA の抽出 真菌性有害性の特定 真菌内部転写スペーサー領域 真菌 DNA シーケンシング 産業空気汚染物質を空気

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