Scrubbing behind the ears and between the toes may help keep the skin in those regions healthy, new research suggests. The microbiome, or the collection of microbes living on and in the human body, are known to play a role in human health and the skin is no different. A new study has shown that the composition of the skin microbiome varies across dry, moist and oily regions of the skin.
Grandmother was right: Scrubbing behind the ears and between the toes may help keep the skin in those regions healthy, or so says a new study by a team at the George Washington University.
Keith Crandall, Director of the Computational Biology Institute and professor of biostatistics and bioinformatics at GW says his grandmother always instructed the kids in his family to"scrub behind the ears, between the toes and in the belly button." Crandall posited that these hotspots are normally washed less often compared to the skin on the arms or legs and thus may harbor different types of bacteria.
The students then learned how to extract and sequence the DNA in the skin samples in order to compare the microbes living in the hotspots to those in the control regions.The researchers found that forearms and calves which are often cleaned more thoroughly at bath time had a greater diversity and thus potentially a healthier collection of microbes compared to the samples taken in the hotspots.
This research, including an earlier study by the same team, is one of the first to look at the diversity of sites across the skin microbiome in healthy adult subjects and may provide a reference point for future research. Crandall says the study of how the collection of microbes on the skin leads to health or disease is in the early stages.ChicagoGeorge Washington University. . .
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