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Absorbent Microbiopsy Sampling and RNA Extraction for Minimally Invasive, Simultaneous Blood and Skin Analysis

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Published on: February 21, 2019

Comparing different sample collection and storage methods for field-based skin microbiome research.

Melissa B Manus¹, Sahana Kuthyar^1,2, Ana Gabriela Perroni-Marañón³

¹Department of Anthropology, Northwestern University, Evanston, Illinois, USA.

American Journal of Human Biology : the Official Journal of the Human Biology Council

|March 1, 2021

Summary

This summary is machine-generated.

This study found that skin microbiome sample collection and storage methods impact bacterial diversity. Ethanol storage is a viable option for field studies, but body site variation is a key factor to consider.

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Area of Science:

Microbiology
Human Biology
Environmental Science

Background:

The skin microbiome is crucial for human health and environmental interaction.
Standardized methods are needed for reliable skin microbiome research.
Field studies require adaptable sample collection and storage techniques.

Purpose of the Study:

To evaluate the impact of different skin microbiome sample collection and storage methods.
To assess the feasibility of field-based skin microbiome studies.
To inform future study designs for accurate microbial analysis.

Main Methods:

Collected 99 skin microbiome samples from infants using wet and dry swabs.
Applied two storage methods: 95% ethanol and -20°C freezer.
Analyzed bacterial diversity and composition using 16S rRNA sequencing and statistical models.

Main Results:

Both collection and storage methods influenced skin bacterial communities.
Body site variation had a stronger effect on microbial composition than treatment methods.
Wet versus dry swab collection impacted diversity more than ethanol versus freezer storage.

Conclusions:

Ethanol storage is a practical method for skin microbiome research in resource-limited settings.
Future studies must account for significant inter-body site microbial variation.
Standardized protocols are essential for consistent skin microbiome data acquisition.