Brown Frog Skin Contains Powerful Antibiotics To Fight Against salmonella, staphylococcus Bacteria

Frog in bucket of milk produces potential new antibiotics

6:49 AM, 6th February 2013
Brown Frog Skin as Powerful Antibiotics
Secretions from the skin of the Russian brown frog, once used to preserve fresh milk, promise new antibiotics.

 

WASHINGTON DC, US: Following up on an ancient Russian way of keeping milk from going sour, by putting a frog in the bucket of milk, scientists have identified a wealth of new antibiotic substances in the skin of the Russian Brown frog. The study appears in ACS’ Journal of Proteome Research.

Researcher A T Lebedev and colleagues explained that amphibians secrete antimicrobial substances called peptides through their skin. These compounds make up the majority of their skin secretions and act as a first line of defense against bacteria and other microorganisms that thrive in the wet places frogs, toads, salamanders and other amphibians live. A previous study identified on the skin of the Russian Brown frog 21 substances with antibiotic and other potential medical activity. Lebedev’s team set out to find more of these potential medical treasures.

They used a sensitive laboratory technique to expand the list of such substances on the frogs’ skin, identifying 76 additional substances of this kind. They describe lab tests in which some of the substances performed as well against Salmonella and Staphylococcus bacteria as some prescription antibiotic medicines. “These peptides could be potentially useful for the prevention of both pathogenic and antibiotic resistant bacterial strains while their action may also explain the traditional experience of rural populations,” the scientists concluded.

© American Chemical Society News

 

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