Good Bacteria Can Push Out Deadly Invaders
News Jun 10, 2015
Staphylococcus aureus, also known as the dreaded Staph bacteria that can cause lethal infections, is commonly found in the human nose. The germ is also estimated to cause infections killing 18,000 people every year in the U.S.
But the potentially deadly unwelcome guests are a product of environment, not genes – and can be pushed out by benign bacteria, according to an international study of twins.
“This is study is important because it suggests that the bacteria in the nose are not defined by our genes and that we may be able to introduce good bacteria to knock out bad bugs like Staph,” said Lance Price, the director of the Translational Genomics Research Institute’ Center for Microbiomics and Human Health. “Using probiotics to promote gut health has become common in our culture. Now we’re looking to use these same strategies to prevent the spread of superbugs.”
The nasal microbiome is the collection of bacteria and germs living deep within the nose. The scientific team – which included the Statens Serum Institut and the Milken Institute at George Washington University – analyzed 46 identical twins and 43 fraternal twins through the famed Danish Twin Registry.
They found there is “no genetically inherent cause for specific bacteria in the nasal microbiome,” said Paal Skytt Anderson, of the Statens Serum Institut.
Instead, the bacteria appear to be determined by the environment. Other bacteria could be cultivated, instead, to prevent the buildup of Staph, the scientists believe.
They also found, contrary to previous studies, that men are not at higher risk for Staph nasal colonization.
“We believe this study provides the early evidence that the introduction of probiotics could work to prevent or knock out Staph from the nose,” said Cindy Liu, a pathology resident at Johns Hopkins Schools of Medicine, who was also the study’s lead author. “This was a surprising finding.”
Stanford investigators first recognized that about a third of all people carry significant amounts of Staph deep in their nasal passages, in a 2013 study. Another third occasionally carry the germ, and the remaining third appear to never carry the bacteria in their noses, they found.
Major international Summit in Belfast to Tackle Escalating Problem of Food IntegrityNews
Food-security experts from all over the world will converge on Belfast from 28-31 May 2018 for a major Summit on how to feed a growing global population - amid massive challenges such as climate change, Brexit, labyrinthine food-supply chains and food fraud on a global scale.READ MORE
Harvard Bioengineers’ Biomaterial-Based Cancer Immunotherapies to be Developed by NovartisNews
The Wyss Institute for Biologically Inspired Engineering at Harvard University and the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) announced today that Novartis will have access to commercially develop their therapeutic, biomaterial-based, cancer vaccine technology that promotes anti-cancer immunity.READ MORE
Rechargable Antibacterial Coating - Just Add Bleach!News
Stainless steel is the gold standard for kitchen appliances and cookware, described as modern and sleek. But bacteria can grow on stainless steel surfaces, contaminating food. Current coatings available on the market are pricey and potentially harmful, so scientists have now developed an affordable specialized polymer coating for such surfaces that they can recharge with bleach treatments.READ MORE