Sentences with phrase «of quorum sensing»

They can shift the microbiome to restore normal commensal gut flora, suppress pathogenic overgrowths like Clostridia, and squelch opportunistic pathogens through the use of quorum sensing.

Disruption of a Quorum Sensing mechanism triggers tumorigenesis: a simple discrete model corroborated by experiments in mammary cancer stem cells

In each situation, the researchers found that the level and location of quorum sensing depended on the three - dimensional shape of the physical space combined with the flow conditions.

To explore the health consequences of quorum sensing in the crypts, the researchers introduced into the flow a molecule that acts as an antagonist to turn off quorum sensing in chambers colonized by the well - known scourge of hospitals, methicillin - resistant S. aureus, or MRSA.

Subsequent tests confirmed the role of quorum sensing and virulence.

Not exact matches

S. praecaptivus, on the other hand, uses quorum sensing to ensure that virulence is only deployed at the onset of infection, to ensure successful establishment.

Likewise, mutants of S. praecaptivus that lacked quorum sensing but also lacked genes for insecticidal toxins were less harmful towards their hosts.

The mutation affected a regulatory system called «quorum sensing,» which allows bacteria to sense the size of their own population in the insect.

This phenomenon, called quorum sensing, allows the bacteria to adjust behaviours according to the numbers of other bacteria around.

Within the bacteria's quorum sensing system there are four types of peptides and each group is detected by corresponding Agr receptor kinases.

In these real - world situations, fluid flow can interfere with the delivery of the chemical messengers used in quorum sensing, said co-corresponding author Howard Stone, Princeton's Donald R. Dixon»69 and Elizabeth W. Dixon Professor of Mechanical and Aerospace Engineering.

Sheltered from flow at the bottom of the crypt, quorum - sensing molecules can travel between bacteria, but molecules near the top of the crypt are carried away.

To explore the health consequences of bacterial quorum sensing in the crypts, the researchers experimented with an antagonist to turn off quorum sensing in chambers colonized by methicillin - resistant S. aureus (MRSA), an antibiotic - resistant strain of bacteria that causes human infection.

Instead, they scupper what is known as quorum sensing, i.e, a system used by bacteria to communicate with the help of messenger substances that results in the formation of biofilms.

«According to our findings, this activity further insulates S. aureus from flow, which is a mechanism that presumably enables quorum - sensing control of pathogenicity, specifically inside crypts.»

Cells that receive these quorum - sensing messages can then kick off a gene - expression program that enables bacteria to break free of the biofilm, travel via the flowing fluid to new sites and potentially spread infection to new sites.

«Inside crypts, the bacteria engage in quorum sensing and activate the production of a toxin called enterotoxin B, which functions to increase the depth of the crypt,» Kim said.

To achieve this, the researchers took advantage of a phenomenon known as quorum sensing, which is used by many species of bacteria to coordinate gene regulation in response to their population density.

In addition, quorum - sensing molecules at the base of biofilms are protected from fluid flow and can be detected by neighboring cells, the researchers observed.

Co-author François Ingremeau, a former postdoctoral researcher in mechanical and aerospace engineering at Princeton who is now at the University of Grenoble in France, also conducted significant experimental and modeling work related to quorum - sensing response to fluid flow.

On a yellow pad, Blackwell draws a portrait for me of a prototypical quorum - sensing signal molecule: a ring of carbon atoms attached to some hydrogen, nitrogen, and oxygen atoms, trailing off in a long tail composed of more carbon atoms.

But now, after seven years of fundamental research on quorum sensing in bacteria, she and her group are starting to study the way living plants respond to signals given off by bacteria, as well as to synthetic signals brewed in the lab.

A series of such experiments suggests that virulence can be tuned — turned on or off, exaggerated or attenuated — by modulating the genes for quorum sensing.

CrvA expression is activated by quorum sensing and increases as the population density of bacteria grows, the researchers found.

In their more recent work, Bassler and her colleagues are searching for ways to scramble the quorum - sensing signals of cholera germs.

«This counting of heads is called quorum sensing,» Bassler explains.

The project, says bioengineer Chueh Loo Poh of Nanyang Technological University in Singapore, was «inspired by nature,» particularly by quorum sensing, the ability of some bacteria to detect the number of microorganisms — either of their own species or others — in their environment.

Nox2 modification of LDL is essential for optimal apolipoprotein B - mediated control of agr type III Staphylococcus aureus quorum - sensing.

Researchers called this phenomenon quorum - sensing — the bacteria communicate to determine the size of their community.

Also MCP (modified citrus pectin) is great at inhibiting quorum sensing and to chelate a lot of heavy metals (I believe iron also, but I'd had to check), and even more potent if combined with Quercetin and Ellagic acid.

Europe: Thomas Bayrle at Institut d'Art Contemporain, Villeurbanne; Mark Manders: Cose in Corso at Collezione Maramotti, Reggio Emilia; Playtime at Lenbachhaus, Munich; Lina Selander: Silphium at Kunsthall, Trondheim; Richard Wright: Nine Chains to the Moon (Chapter 1) at BQ, Berlin; Viktor Rosdahl: Quorum Sensing at Johan Berggren Gallery, Malmö; Benjamin Sabatier: Storage at Jousse Entreprise, Paris; Matthew Benedict: The Lost Island at Mai 36 Galerie, Zürich; Krystian Jarnuszkiewicz: Hard Asleep Under an Oak Tree at Pola Magnetyczne, Warsaw; Flora Borsi: Pieces of My Mind at ART350), Istanbul.