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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

Virginia Commonwealth University

AUCTUS: The Journal of Undergraduate Research and Creative Scholarship

2018

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

Adherence Mechanism Analysis: The Role Of Prsa Gene In Lactobacillus Acidophilus And Other Infectious Microorganisms, Nujuma Moussa Jan 2018

Adherence Mechanism Analysis: The Role Of Prsa Gene In Lactobacillus Acidophilus And Other Infectious Microorganisms, Nujuma Moussa

AUCTUS: The Journal of Undergraduate Research and Creative Scholarship

No abstract provided.


Investigation Into The Role Of Manganese In The Growth Of The Opportunistic Pathogen Streptococcus Sanguinis, Brittany Spivey Jan 2018

Investigation Into The Role Of Manganese In The Growth Of The Opportunistic Pathogen Streptococcus Sanguinis, Brittany Spivey

AUCTUS: The Journal of Undergraduate Research and Creative Scholarship

While Streptococcus sanguinis plays a beneficial role in the oral cavity as a competitor of Streptococcus mutans and Streptococcus sobrinus, the bacteria that produce dental caries, it can cause deadly infective endocarditis if given the opportunity to colonize the vegetations that form over damaged endocardial tissue. Pre-existing heart conditions, surgery, and intravenous drug use predispose individuals to endocarditis. S. sanguinis growth and consequential virulence is significantly impeded by restriction to manganese. This is due to the resulting overwhelming oxidative stress and formation of reactive oxygen species which damage DNA and other cellular components. Manganese is essential for S. sanguinis proteins …