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biofilms in Medical News

Chemical engineering researchers identify biofilms that cause infections

COLLEGE STATION June 11, 2008 Understanding the way bacterial cells "talk" to each other could lead to more effective methods for fighting the often persistent and serious infections caused by the biofilms they form, says a Texas A&M University professor of chemical engineering who not only has d...

Syracuse University researchers build a new surface material that resists biofilm growth

...cky, slimy buildup on almost any kind of surface. biofilms can corrode the hulls of ships, produce green slim...r scientists to gain a better understanding of how biofilms are formed and use that knowledge to develop surfa...urface technology that scientists can use to study biofilms in ways that were not previously possible. In ...

IADR and GlaxoSmithKline Consumer Healthcare announce winners of 2009 Innovation in Oral Care Awards

...olds and his team have patented its use for the treatment of periodontal diseases. Once the efficacy of Oxantel against periodontopathogenic bacterial biofilms has been demonstrated, it should be possible to develop a professional product that will result in improved oral health for persons with periodontitis...

E. coli persists against antibiotics through HipA-induced dormancy

...tein called HipB. Persistence is common in "biofilms," bacterial colonies that become attached to a surface in a supportive matrix. Drug-resistant biofilms cause about 60 percent of infections in the developed world, the researchers note. Overexpression of HipA previously had been associated with cell ...

A Honey of a Sinusitis Treatment

...l meeting in Chicago. In the laboratory, Marsan's team applied honey to biofilms made up of the bacteria that cause sinusitis. They found that honey was...he Sidr honey from Yemen, have a powerful killing action on these bacterial biofilms that is far superior to the most powerful anti-microbials used in medicine ...

American Chemical Society's Weekly PressPac -- June 4, 2008

... and chemically communicate in communities termed biofilms has sparked a global scientific effort to control...er story, Senior Editor Lisa M. Jarvis points that biofilms are the major culprit behind hospital-acquired inf...ted States, claiming thousands of lives each year. biofilms also cause other problems ranging from dental plaq...

Derma Sciences Announces Numerous Clinical Presentations on MEDIHONEY(TM) Wound & Burn Dressings at Upcoming WUWHS Conference

...ns, Ireland. Dr. Cooper will present information on the mechanisms of action of Active Leptospermum Honey, as well as her findings on activity against biofilms and the inability of organisms to select for resistance. Dr. Gethin will present clinical evidence derived from her randomized controlled study compar...

Dr. Arnold Klein Warns of Dangers With Permanent and Longer Lasting Injectable Fillers

...tissue, all of these products can cause foreign body reactions," Klein warned, "in which the body's immune system attacks these implants and bacterial biofilms can encase them, causing hard, red, painful and sometimes oozing nodules." Klein continued, "In the case of Artefill, a permanent filler, we have scie...

Superbug genome sequenced

...e patients. The key questions that need to be addressed are: How does Steno stick to surfaces like catheters and ventilator tubes" How does it form biofilms and so survive attempts to decontaminate and clean" Why is it resistant to antibiotics" Dr Lisa Crossman from the Sanger Institute and first author...

Irradiation Almost Erases Risk of Food Poisoning

... Irradiation, however, reduced the level of E. coli by 99.99 percent in lettuce and by 99.9 percent in spinach, the researchers found. In tests of biofilms that contained salmonella or E. coli, those that contained salmonella died more easily when exposed to radiation, while E. coli was a little bit more ...
biofilms in Medical Technology

Nanoemulsion Kills Highly Resistant Bacteria Found in Patients With Cystic Fibrosis

...ons. But systemic drugs often fail to reach the airways with sufficient strength to subdue the bacteria or to penetrate the thick sputum and bacterial biofilms that coat the bacteria. The rising prevalence of drug-resistant strains of bacteria has also reduced the efficacy of frontline antibiotics, both oral ...

BASF Officially Launches the Collaborative Advanced Research Initiative at Harvard University

... celebrated with an inaugural two-day Symposium on biofilms held in Cambridge, Massachusetts. The decisive d...ort to better society." The two-day Symposium on biofilms at the Norton's Woods Conference Center at the Ame...cience, to share their knowledge about the life of biofilms and their interaction with surfaces. George Whites...

Oritavancin Demonstrates Potent and Rapid In Vitro Activity Against MRSA, VRE and Other Strains of Resistant Bacteria

...le concentrations of oritavancin and other comparators tested against in vitro models of slow-growing and biofilm S. aureus. Slow-growing bacteria and biofilms are notoriously tolerant to antibiotics. In this study, time-kill studies were performed using oritavancin, linezolid and vancomycin on stationary-pha...
biofilms in Medical Dictionary

Sinus

... Sinus venosus, a cavity in the heart of embryos ... 2.1 Sinus headache. 2.2 Migraine misdiagnosis. 3 Predisposing factors. 3.1 Role of biofilms ... was the most common bacterial agent to cause sinus infections. ... Learn about sinus infection, or sinusitis, causes, symptoms, diagn...

Gingivitis

...or gingival diseases affecting the gingiva (gums). As generally used, the term gingivitis refers to gingival inflammation induced by bacterial biofilms adherent to tooth surfaces. Describes the earliest form of periodontal disease, including its symptoms, treatment, and possible complications. ...
biofilms in Biological News

Bacterial biofilms as fossil makers

BLOOMINGTON, Ind. -- Bacterial decay was once viewed as fossilization's mortal enemy, but new research suggests bacterial biofilms may have actually helped preserve the fossil record's most vulnerable stuff -- animal embryos and soft tissues. A team of 13 scientists led by Indiana University Bl...

MSU biofilms research helps set standards for everyday products

BOZEMAN -- Montana State University scientist Darla Goeres knows that there is more than one way to grow a biofilm, a fact that she uses to make sure that when a product claims it kills "99 percent" of bacteria, it really does the job. Biofilms are the extremely common communities of bacteria ...

Microbial biofilms evoke Jekyll & Hyde effects

Microbes such as bacteria tend to live in complex colonies called biofilms, where there can resist antibiotics and cause more problems for the immune system. Biofilms comprising millions of bacteria are at the root of many serious chronic infectious diseases such as cystic fibrosis and periodontal...

Turning on cell-cell communication wipes out staph biofilms

University of Iowa researchers have succeeded in wiping out established biofilms of Staphylococcus aureus (staph) by hijacking one of the bacteria's own regulatory systems. Although the discovery is not ready for clinical application, the findings offer insight into a dispersal mechanism for staph...

New research program BioInterfaces launched

...diseases that affect muscle, the retina or the central nervous system. In addition, BioInterfaces aims to control or inhibit bacterial cells that form biofilms on man-made surfaces, another area of immense technical relevance. "The basic philosophy of the BioInterfaces programme is to learn from nature and...

Two-pronged model could help foil tough cystic fibrosis infections

...a to breed and cluster in slimy communities called biofilms that become increasingly drug resistant and damagi...lts: "We were first to show iron is definitive for biofilms forming on live human airway cells. And the highe... what we've shown to be barely enough to eradicate biofilms on airway cells," Moreau-Marquis said. The team...

Sugar on bacteria surface serves as base for a web of resistance

...any antibiotics target actively growing cells, but biofilms go into a dormant mode of growth. This comes into ...dy, Wozniak noted. Surfaces to which bacterial biofilms can attach are key to their success, meaning that ...iful nutrients and easy access to the human mouth, biofilms are also responsible for tooth decay. These microc...

Corrosion-inhibiting coatings containing 'good' bacteria

...big safety and financial problem caused by the production of damaging substances such as hydrogen sulphide by sulphate-reducing micro-organisms within biofilms on the surfaces. Overall it is estimated that corrosion costs the UK around 3-4% of GDP. Existing anti-corrosion treatments are costly, ineffective an...

Genes that make bacteria make up their minds

...e explained that it is important to understand how biofilms form as they are often the basis of chronic infect... detailed information on how bacteria develop into biofilms will allow scientists to work on alternative strat...s investigated the genes and proteins required for biofilms to develop. She has shown that a protein called De...

Queen's scientists find new way to battle MRSA

...e shown that when pitted against the ionic liquids we developed and tested, biofilms offer little or no protection to MRSA, or to seven other infectious microor...colonies of bacteria that cause hospital acquired infections." Microbial biofilms are not only problematic in hospitals, but can also grow inside water pipes...
biofilms in Biological Technology

Otonomy Introduces Scientific Advisory Board

...ge of Medicine and the Army Reserve otolaryngology consultant to the Army Surgeon General. Dr. Post's research interests include the role of bacterial biofilms in otitis media, human gene discovery, the genetics of human performance, and scarless wound healing. He has completed a pediatric otolaryngology fell...

Collegiate Inventors Competition(R) Recognizes Top Student Inventors

...y Lu, Harvard Medical School and Massachusetts Institute of Technology (Advisor: J.J. Collins) Combating Antibiotic-resistant Bacteria and Bacterial biofilms with Engineered Bacteriophage and Synthetic Gene Sensors - An engineered bacteriophage - a virus that infects bacteria-that works in conjunction with ...

Microscopic 'clutch' puts flagellum in neutral

...assively communal, stationary assemblage called a biofilm. The stability of biofilms can be jeopardized by hyperactive bacterial cells whose flagella continue t...ether the cells are mobile or stationary. Although B. subtilis is harmless, biofilms are often associated with infections by pathogenic bacteria. Understanding ...

QuoNova Global Executive Appointments

...in order to organize their social behaviour, and co-ordinate the production of virulence factors, such as the release of toxins and biofilm formation. biofilms are complex matrices produced by colonies of micro-organisms, and are very difficult to eradicate as they protect themselves against the immune system...

QSB Anti-Virulence Platform Inhibits Biofilm Formation by Staphylococcus Aureus MRSA and Candida sp

...in order to organize their social behaviour, and co-ordinate the production of virulence factors, such as the release of toxins and biofilm formation. biofilms are complex matrices produced by colonies of micro-organisms, and are very difficult to eradicate as they protect themselves against the immune system...

Separation of 16S rRNA PCR Products From a Model Community Using Temporal Temperature Gradient Gel Electrophoresis, Rev A

...tion of bacterial species from membrane biofilms has been a microbiological challenge. A vast major...(>90%) of bacterial cells from membrane biofilms cannot be cultivated by standard microb...ns, microbial populations from membrane biofilms have not currently been well characterized. ...
biofilms in Biological Dictionary

Microbial mats

... Kane Caves Macroinvertebrate Page. Macroinvertebrate Webpage. Diversity of Microbial Communities. White Mats . Black Mats . Red Mats . Cave-Wall biofilms ... may have accumulated under the influence of microbial mats . ... shallow water environments, microbial mats may also have ... zones, mi...
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