Navigation Links
Scientists offer way to address 'age-old' questions
Date:9/7/2011

werful ways. For instance, we found that how frequently a given age is observed along lineages is a direct reporter of how important that age is to the population's growth rate. This would allow us to predict the success or failure of mutant bacteria, which age differently from normal ones."

Using experimental data from laboratory populations of E. coli, the researchers confirmed several theoretical predictions. The article's other co-authors were Yuichi Wakamoto of the University of Tokyo and the Japan Science and Technology Agency and Alexander Grosberg, a professor in NYU's Department of Physics and its Center for Soft Matter Research.

The work builds upon a previously published paper in the Proceedings of the National Academy of Sciences, in which Kussell and co-author Stanislas Leibler of Rockefeller University offered a way to infer the behavior of individual cells from population-level measurements.

One of the behaviors they considered is known as stochastic switching, a strategy in which cells randomly activate certain genes in order to survive. Notably, pathogenic bacteria, which cause disease in both humans and animals, engage in stochastic switching, resulting in alternative cellular states that improve the bacteria's ability to survive. The cells best suited for given conditions survive while others die offanother example of selection within populations. Understanding what prompts this type of cellular change in bacteria, and which strains are more sustainable than others, could then lead to alternative methods to curb bacterial growth.

The study centered on understanding two types of cellular strategiesresponsive switching, in which cells change their state by reacting to environmental change, and stochastic switching, in which cells randomly activate certain genes, independent of external forces. Within a population, however, it is difficult to detect which strategy is being usedwhen cells change behavior, are they
'/>"/>

Contact: James Devitt
james.devitt@nyu.edu
212-998-6808
New York University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/14/2014)... inevitable consequence of aging? , Although it is widely ... the risk of developing several common cancers decreases with ... apparent decrease with age in the risk of developing ... this puzzle was presented in a recent paper published ... James P. Brody of the Department of Biomedical Engineering ...
(Date:7/14/2014)... developed a technology that could overcome a major ... a fuel that could replace expensive and environmentally ... a novel catalyst that performs almost as well ... use electric currents to split water molecules into ... far more efficient than less-expensive catalysts investigated to-date. ...
(Date:7/13/2014)... French . , ... led by the Research Institute of the McGill University ... oral medication is showing significant progress in restoring vision ... this inherited retinal disease that causes visual impairment ranging ... The study is published today in the scientific journal ...
Breaking Biology News(10 mins):Rutgers chemists develop technology to produce clean-burning hydrogen fuel 2MUHC researcher unveils novel treatment for a form of childhood blindness 2
... early stages, prostate cancer requires androgens (hormones that promote ... growth, and current first-line therapies target the receptor for ... However, advanced prostate cancers are often androgen-independent, ... sure how this shift occurs as prostate cancer advances. ...
... JERUSALEM , July 6, 2010 IDenta Corp.,(PINKSHEETS: IDTA) CEO Yaacov Shoham ... The IDenta,s BTK- Bullet Hole ... , , ... , http://www.lasvegassun.com/news/2008/jul/08/gee-whiz-packed-metro-csi-tru , ...
... just yet, but if you,re taking antioxidants because you hope ... the June 2010 issue of the journal GENETICS ... stress to our tissues shortens lifespan. That,s because researchers from ... genes of worms (genes believed to have counterparts in humans) ...
Cached Biology News:UNC team finds new target for treatment of advanced prostate cancer 2International Drug & Explosives Detection Company IDenta Corp Reports on BTK- Bullet Hole Testing Kit 2International Drug & Explosives Detection Company IDenta Corp Reports on BTK- Bullet Hole Testing Kit 3Want to slow aging? New research suggests it takes more than antioxidants 2
(Date:7/10/2014)... Unraveling life’s mysteries can intrigue, amaze, ... Family purchased a DNA test to unravel ... with a lifetime of memories, sharing, and closeness. In ... DNA genuinely brought the family closer together. , ... genetic history and prior to taking the genetic ...
(Date:7/10/2014)... Angeles, CA (PRWEB) July 10, 2014 ... and Bioanalytical techniques during 18-20 August, 2014 at Double ... critically review the recent developments in Analytical & Bioanalytical ... the globe. , Speaking on this occasion, Dr. Srinubabu ... Analytica Acta conference is a remarkable one in ...
(Date:7/10/2014)... Senior supply chain management executives from over ... challenges of “Reducing Cost, Lead Time, & Defects in ... Describing the partnership of the Bio Supply Management Alliance ... ( SCMI) of the University of San Diego ... Kroc Institute of Peace and Justice in San Diego, ...
(Date:7/10/2014)... On July 9 Prime Minister ... Russia,s first national "Industry" award ... is developing a unique project called MabNext . ... number of innovative drugs based on monoclonal antibodies for ... place at the International Exhibition "Innoprom 2014" in Ekaterinburg. ...
Breaking Biology Technology:Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2
... software developer Cedara Software and the ... to offer Cedara B-CAD to its customers as part ... Workstation. , ,Cedara B-CAD is a Computer Aided Detection ... lesions using ultrasound images, providing tools for automatic image ...
... individuals are invited to enter the 35th ... benefits coming from research and engineering of new ... Products Awards are given in four major categories: ... (500-999 employees); medium companies (50-499 employees); and small ...
... StrandVision , latest business venture of Mike Strand in ... last business-plan competition, has landed $250,000 from the ... Online Kiosks, has a plan to put video screens ... After reaching the statewide business-plan competition finals, it won ...
Cached Biology Technology: