Navigation Links
Disinfectants can make bacteria resistant to treatment
Date:10/5/2008

Chemicals used in the environment to kill bacteria could be making them stronger, according to a paper published in the October issue of the journal Microbiology. Low levels of these chemicals, called biocides, can make the potentially lethal bacterium Staphylococcus aureus remove toxic chemicals from the cell even more efficiently, potentially making it resistant to being killed by some antibiotics.

Biocides are used in disinfectants and antiseptics to kill microbes. They are commonly used in cleaning hospitals and home environments, sterilizing medical equipment and decontaminating skin before surgery. At the correct strength, biocides kill bacteria and other microbes. However, if lower levels are used the bacteria can survive and become resistant to treatment.

"Bacteria like Staphylococcus aureus make proteins that pump many different toxic chemicals out of the cell to interfere with their antibacterial effects," said Dr Glenn Kaatz from the Department of Veterans Affairs Medical Center in Detroit, USA. "These efflux pumps can remove antibiotics from the cell and have been shown to make bacteria resistant to those drugs. We wanted to find out if exposure to biocides could also make bacteria resistant to being killed by the action of efflux pumps."

The researchers exposed S. aureus taken from the blood of patients to low concentrations of several biocides and dyes, which are also used frequently in hospitals. They looked at the effect of exposure on the bacteria and found that mutants that make more efflux pumps than normal were produced.

"We found that exposure to low concentrations of a variety of biocides and dyes resulted in the appearance of resistant mutants," said Dr Kaatz. "The number of efflux pumps in the bacteria increased. Because the efflux pumps can also rid the cell of some antibiotics, pathogenic bacteria with more pumps are a threat to patients as they could be more resistant to treatment."


'/>"/>

Contact: Lucy Goodchild
press@sgm.ac.uk
44-011-898-81843
Society for General Microbiology
Source:Eurekalert

Page: 1 2

Related biology news :

1. Shuttle brings space-grown strep bacteria back for study
2. The worlds oldest bacteria
3. Bacteria from sponges make new pharmaceuticals
4. Boston University biomedical engineers find chink in bacterias armor
5. University of Leicester scientists discover technique to help friendly bacteria
6. Spaceflight shown to alter ability of bacteria to cause disease
7. A tiny pinch from a z-ring helps bacteria cells divide
8. Legionnaires bacterial proteins work together to survive
9. Scripps research team blocks bacterial communication system to prevent deadly staph infections
10. NSF awards Stevens team $1 million for research on smart, bacteria-repellent nanohydrogels
11. Chemical compound present in detergents produce bacteria alterations in agricultural soils
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/1/2014)... CAMBRIDGE, Mass-- Conventional wisdom has long held that ... of coral reefs are passive organisms that ... substances, such as nutrients and oxygen. But now ... Science (WIS) in Israel have found that they ... sweep water into turbulent patterns that greatly enhance ...
(Date:9/1/2014)... AM EDT) It may be possible to train ... higher-calorie foods, according to new research by scientists at ... Aging (USDA HNRCA) at Tufts University and at Massachusetts ... Nutrition & Diabetes , a brain scan study in ... to reverse the addictive power of unhealthy food while ...
(Date:9/1/2014)... electron microscopy revealed the presence of tiny blob-like structures ... scientists still don,t know what they do even ... to be crucial to the life of a cell, ... treatment., In the Journal of Cell Biology , ... various backgrounds, from biophysics to cell biology, to focus ...
Breaking Biology News(10 mins):Nature's tiny engineers 2Nature's tiny engineers 3Training your brain to prefer healthy foods 2Scientists call for investigation of mysterious cloud-like collections in cells 2
... has named its awardee for this year,s Alan ... Brown University. Dunn,s work involves genome analyses ... He investigates the origins of biological complexity ... research holds clues about how complex multicellular organisms, ...
... This release is available in French . ... without exposing the healthy surrounding tissue to the medication,s toxic ... medical reality, thanks to the work of Professor Sylvain Martel, ... Known for being the world,s first researcher to have guided ...
... most controversial aspects in the sustainable management of golf courses. ... the practices relating to reclaimed water at one of the ... on the course receive 83% more water than they need. ... be justified from any perspective", Mara del Pino Palacios Daz, ...
Cached Biology News:Casey Dunn to receive NSF Waterman Award 2Casey Dunn to receive NSF Waterman Award 3World first -- Localized delivery of an anti-cancer drug by remote-controlled microcarriers 2Golf courses that reuse water irrigate too much 2Golf courses that reuse water irrigate too much 3
(Date:8/28/2014)... MA (PRWEB) August 28, 2014 “This kit ... test to screen from 0 to 150 ppb,” said Mark ... is a significant benefit to plant owners and USDA-GIPSA inspection ... and other commodities. Testing can take place in a matter ... only can the plant test the feed and grain before ...
(Date:8/28/2014)... in spintronics, an electronic which is not only ... on their spin and the spin-related magnetism. Spin-charge ... signals and vice versa. Recently, the research group ... Physics at Johannes Gutenberg University Mainz in collaboration ... has for the first time realised a new, ...
(Date:8/28/2014)... Willow Grove, PA (PRWEB) August 28, 2014 ... talent, and create a culture that will allow individuals ... that are becoming increasingly important for employers looking to ... life science industries are embracing this trend, as the ... the fabric of a company, which will have real ...
(Date:8/28/2014)... SunTrust Robinson Humphrey (STRH) today announced the ... research team in biotechnology and oilfield services.  ... demonstrates our commitment to providing our valued institutional ... decision making," said Biff Woodruff , Head ... significant investments in differentiated content at a time ...
Breaking Biology Technology:A new, tunable device for spintronics 2A new, tunable device for spintronics 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3
... Emmanuel Labourier , Ambion, Inc , ... from the same sample Enrich for , ... , for assessing siRNA or miRNA expression and ... (siRNAs) and , microRNAs (miRNAs) have emerged as ...
... , High ... Only ethically sourced tissue is used , Custom RNA isolations from tissue ... Begins at the Source , Use ... that you are getting the highest , quality ...
... In Vitro Translation Kit , ... of protein than reticulocyte , lysate systems , ... biological activity than other E. coli , lysate systems ... researchers studying protein function and , ...
Cached Biology Technology:Isolate It All: siRNA miRNA , Total RNA Native Protein 2Isolate It All: siRNA miRNA , Total RNA Native Protein 3Isolate It All: siRNA miRNA , Total RNA Native Protein 4Isolate It All: siRNA miRNA , Total RNA Native Protein 5Isolate It All: siRNA miRNA , Total RNA Native Protein 6Isolate It All: siRNA miRNA , Total RNA Native Protein 7Isolate It All: siRNA miRNA , Total RNA Native Protein 8Isolate It All: siRNA miRNA , Total RNA Native Protein 9High Quality RNA Isolation Services 2Increase Protein Activity and Yield 2Increase Protein Activity and Yield 3
...
... contains the basic components required for the ... and recombinant canine Monocyte Chemotactic Protein 1 ... Each kit contains sufficient materials to run ... that the following conditions are met:2 ...
Mouse monoclonal [LPL4A.1] to Plastin L ( Abpromise for all tested applications). SwissProtID: P13796...
Component of HyperMu™ Insertion Kit...
Biology Products: