Navigation Links
Unexpected role of noise in spine formation
Date:9/29/2011

The development of periodic structures in embryos giving rise to the formation of, e.g., spine segments, is controlled not by genes but by simple physical and chemical phenomena. Researchers from the Institute of Physical Chemistry of the Polish Academy of Sciences, the Centre National de la Recherche Scientifique and the University Pierre et Marie Curie have proposed a straightforward theoretical model to describe the process, and studied how the segmentation is affected by internal, thermodynamic noise of the system. The results turned out to be counterintuitive.

In an early stage of embryogenesis in vertebrates, periodic segments called somites are formed in their dorsal mesoderm. With time, they transform into, i.a., vertebrae, spine elements. A Polish-French team from the Institute of Physical Chemistry of the Polish Academy of Sciences (IPC PAS) in Warsaw and the Centre National de la Recherche Scientifique (CNRS) and the University Pierre et Marie Curie (UPMC) in Paris has presented a straightforward theoretical model describing the formation of similar patterns. An analysis of the model properties has revealed that the formation of such patterns is surprisingly affected by the internal noise that is present in any physical system.

"We are convinced that the laws of physics and chemistry can explain biological phenomena and the evolution of living organisms", says Dr Bogdan Nowakowski from IPC PAS. "That's why we attempted to model theoretically one of the elements of vertebrate embryogenesis: the formation of periodic structures in somitogenesis. We did it by considering the minimal scheme of chemical reactions involving only a few components".

The chemistry of far-from-equilibrium phenomena knows spectacular Belousov-Zhabotinsky oscillating reactions (you can watch them in many movies on Youtube). The reactions occur in aqueous solutions of appropriate reagents with various concentrations. If addition of a component re
'/>"/>

Contact: Dr. Bogdan Nowakowski
bnowakowski@ichf.edu.pl
48-223-433-191
Institute of Physical Chemistry of the Polish Academy of Sciences
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Study of placenta unexpectedly leads to cancer gene
2. Unexpected finding opens up new way to stop autoimmune diseases and transplant rejection
3. New and unexpected mechanism identified how the brain responds to stress
4. Red pandas reveal an unexpected (artificial) sweet tooth
5. Yeast missing sex genes undergo unexpected sexual reproduction
6. Salt block unexpectedly stretches in Sandia experiments
7. 1-finger exercise reveals unexpected limits to dexterity
8. New study reveals unexpected relationship between climate warming and advancing treelines
9. Study points to new uses, unexpected side effects of already existing drugs
10. Research reveals lipids unexpected role in triggering death of brain cells
11. Study reveals H1N1 unexpected weakness
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Unexpected role of noise in spine formation
(Date:7/11/2014)... Researchers from Salk Institute for Biological Studies, BGI, ... the safety and reliability of the existing targeted ... method, TALEN-HDAdV, which could significantly increased gene-correction efficiency ... study published online in Cell Stell Cell ... cell-based gene therapy. , The combination of stem ...
(Date:7/11/2014)... 11, 2014 The increased risk of kidney injury ... resuscitation fluids reflects the mass of HES molecules, according ... official journal of the International Anesthesia Research Society (IARS). ... harmful effect of HES on cultured human renal proximal ... Christian Wunder and colleagues of University Hospital Wrzburg, Austria. ...
(Date:7/11/2014)... , July 11, 2014 Research ... "International Biometrics Technology Market - Industry Analysis Size ... to their offering. http://photos.prnewswire.com/prnh/20130307/600769 ... and crimes has created a need for high level ... used for personnel authentication such as username and passwords, ...
Breaking Biology News(10 mins):A new genome editing method brings the possibility of gene therapies closer to reality 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2International Biometrics Technology Market - Industry Analysis Size Share Growth Trends and Forecast to 2019 2
... When students using the Ask a Biologist Web site ask ... actually accessing the combined knowledge of more than 150 volunteer ... "That,s why Dr. Biology is so amazing," says Charles Kazilek, ... on the planet." Kazilek,s site, which attracts 3,000-4,000 visitors ...
... for the Advancement of Science has chosen Arizona State ... science education, to receive the Science Prize ... The prize, established to "encourage innovation and excellence in ... resources by students, teachers, and the public," recognizes the ...
... fish species in the ocean, but the majestic gliding ... astonishing feat of mathematics and energy conservation. In new ... Functional Ecology marine scientists reveal how these ... buoyancy and stay afloat. For most animals movement ...
Cached Biology News:Science selects 'Ask a Biologist' website to win SPORE award 2Science selects 'Ask a Biologist' website to win SPORE award 3Science selects 'Ask a Biologist' website to win SPORE award 4ASU’s Ask A Biologist website wins prestigious SPORE prize 2ASU’s Ask A Biologist website wins prestigious SPORE prize 3Whale sharks do the math to avoid that sinking feeling 2
(Date:7/10/2014)... Ceres, Inc . (Nasdaq: CERE ), an ... for the three months ended May 31, 2014 and ... reported that the company and its customers have made ... Brazil, which concluded in June, despite dry and hot ... part of the growing season. Yields of several of ...
(Date:7/10/2014)... the journal PNAS (Proceedings of the National Academy ... and sleep deprivation have a significant effect on our ... the best time of day to test for diseases ... medicines effectively. , Researchers from the University of Surrey ... links between sleep deprivation, body clock disruption and metabolism, ...
(Date:7/10/2014)... and spiders can sit upside down forever. Nanophysics makes sure ... in an article just published in Physical Review E ... Geckos and spiders that seem to be able to sit ... worldwide for many years. We will soon be able to ... the gecko,s foot. But the fact is, sooner or later ...
(Date:1/15/2014)... an approach akin to assembling a club sandwich ... Technology (NIST) researchers have succeeded in crafting a ... flammability of foam commonly used in upholstered furniture ... the nanotube-coated polyurethane foam was reduced 35 percent ...
Breaking Biology Technology:Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Time of day crucial to accurately test for diseases, new research finds 2Even geckos can lose their grip 2Layered security: Carbon nanotubes promise improved flame-resistant coating 2
... drug discovery and development company eMetagen Corp . ... Marquette University Golden Angels Network , the angel investors ... Golden Angels investment, along with two grants received last ... the National Institutes of Health and a $150,000 Technology ...
... in any foreign land now requires a quick custom check. ... true nationality? What's this nation doing on the global scene ... Do I really like this nation? , ,It's no secret ... savvy than they were a decade ago. They clearly support ...
... - Ann Stunden, director of the Division of ... received a 2005 award for information technology leadership from ... honored Stunden for "strong and ground-breaking leadership in the ... 37 years ago." , ,A co-founder and executive ...
Cached Biology Technology:eMetagen gets $535,000 from MU angel investors 2Why are brands culturally profiled? 2Why are brands culturally profiled? 3
... (bluish-purple), DNA (blue), proteins (red) and acid polysaccharides ... traces: Ca ≤ 10 mg/kg Cd ≤ 5 mg/kg ... ≤ 5 mg/kg Fe ≤ 5 mg/kg K ≤ ... mg/kg Na ≤ 50 mg/kg Ni ≤ 5 mg/kg ...
... performance on minimum space. Thanks to a ... and cooling rates have been achieved that, ... maximum capacity of 48 x 0.2ml tubes, ... much more expensive 96 well instruments. Alternatively, ...
... available in a ready-to-use format. This ... dewaxing paraffin-embedded tissue sections prior to ... other analytical methods. The conventional method ... the slides in a series of ...
EZ-DeWax is a one-step solution that simultanously removes paraffin from and rehydrates formalin-fixed, paraffin embedded tissue...
Biology Products: