Navigation Links
The Origin of the Brain Lies in a Worm

The rise of the central nervous system [CNS] in animal evolution has puzzled scientists for centuries. Vertebrates, insects and worms evolved// from the same ancestor, but their CNSs are different and were thought to have evolved only after their lineages had split during evolution. Researchers from the European Molecular Biology Laboratory [EMBL] in Heidelberg now reveal that the vertebrate nervous system is probably much older than expected. The study, which is published in the current issue of Cell, suggests that the last common ancestor of vertebrates, insects and worms already had a centralised nervous system resembling that of vertebrates today.

Many animals have evolved complex nervous systems throughout the course of evolution, but their architectures can differ substantially between species. While vertebrates have a CNS in the shape of a spinal cord running along their backs, insects and annelid worms like the earthworm have a rope-ladder-like chain of nerve cell clusters on their belly side. Other invertebrates on the other hand have their nerve cells distributed diffusely over their body. Yet, all these species descend from a common ancestor called Urbilateria. If this ancestor already possessed a nervous system, what it might have looked like and how it gave rise to the diversity of nervous systems seen in animals today is what Detlev Arendt and his group study at EMBL. To do so, they investigate the nervous system of a marine annelid worm called Platynereis dumerilii. "Platynereis can be considered a living fossil," says Arendt, "it still lives in the same environment as the last common ancestors used to and has preserved many ancestral features, including a prototype invertebrate CNS."

Arendt and his group investigated how the developing CNS in Platynereis embryos gets subdivided into the regions that later on give rise to the different CNS structures. The regions are defined by the unique combination of regulatory genes expressed,
'"/>




Page: 1 2

Related medicine news :

1. Origin Of SARS Virus Discovered
2. Understanding The Origin Of Tumors
3. Developmental Origins of Polycystic Ovarian Syndrome
4. Mice Aids in Shedding Light on Origin of Autism
5. Origin of HIV Traced To Wild Chimps
6. Origin of obesity may be in brain: scientists
7. Indian Origin Woman is the New Head of British Medical Association
8. Researcher Reports on Origin of Deadly Fever Outbreak
9. Indian Origin Doctor Faces Trial for Cheating
10. Team Tracks Genetic Origins of Eye Cancer
11. Origin Of Sex Can Be Revealed By Sperm Proteome
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The Origin the Brain Lies Worm

(Date:7/12/2014)... rise in the number of mobility devices around the ... suit the upsurge. Virtualization has become a growing trend ... The data traffic has increased by several folds with ... in larger and more complex networks. These global factors ... , The North American (NA) region is expected to ...
(Date:7/12/2014)... The "North American ... Market by Angioplasty Balloon (Plain/Old, Cutting), ... IVC Filter (Retrievable), Endovascular Stent Graft ... studies the major market drivers, restraints, ... Canada. , Browse 108 market data ...
(Date:7/12/2014)... July 12, 2014 The Security Analytics ... 2013 to $3,376.6 million by 2019, at an expected ... 2019. The challenges to counter the increasing number of ... of outdated cyber defense systems in organizations are enormous. ... and remodeling their existing architecture to develop better and ...
(Date:7/12/2014)... Casinos in Australia have ... from international and online casinos. Revenue is estimated to ... years through 2014-15. Greater per capita gambling expenditure has ... Rises in discretionary income levels have also assisted revenue ... items such as casino gambling services. Revenue is estimated ...
(Date:7/12/2014)... "The second toes cross over the big toes on ... said an inventor from East Hartford, Conn. This gave him ... , He then created a prototype of the Comfort Sock, ... big toes from overlapping. This avoids discomfort and pain, which ... to use, it's ideal for people with foot problems, athletes ...
Breaking Medicine News(10 mins):Health News:North America Software Defined Network (SDN) Market Worth $1,443.8 Million by 2019 - New Report by MicroMarket Monitor 2Health News:North America Software Defined Network (SDN) Market Worth $1,443.8 Million by 2019 - New Report by MicroMarket Monitor 3Health News:North America Software Defined Network (SDN) Market Worth $1,443.8 Million by 2019 - New Report by MicroMarket Monitor 4Health News:North America Software Defined Network (SDN) Market Worth $1,443.8 Million by 2019 - New Report by MicroMarket Monitor 5Health News:North American Interventional Cardiology & Peripheral Vascular Devices Market - New Report by MarketsandMarkets 2Health News:North American Interventional Cardiology & Peripheral Vascular Devices Market - New Report by MarketsandMarkets 3Health News:North American Interventional Cardiology & Peripheral Vascular Devices Market - New Report by MarketsandMarkets 4Health News:North American Interventional Cardiology & Peripheral Vascular Devices Market - New Report by MarketsandMarkets 5Health News:North America Security Analytics Market Worth $1,215.2 Million by 2019 - New Report by MicroMarket Monitor 2Health News:North America Security Analytics Market Worth $1,215.2 Million by 2019 - New Report by MicroMarket Monitor 3Health News:North America Security Analytics Market Worth $1,215.2 Million by 2019 - New Report by MicroMarket Monitor 4Health News:Casinos in Australia Industry Market Research Report Now Updated by IBISWorld 2Health News:Casinos in Australia Industry Market Research Report Now Updated by IBISWorld 3Health News:Casinos in Australia Industry Market Research Report Now Updated by IBISWorld 4
... 5 Insmed Inc. (Nasdaq:,INSM), a developer of ... Allan, President and CEO of Insmed, and Steve,Glover, ... at the,17th Annual Credit Suisse Healthcare Conference and ... Dr. Allan will participate on a follow-on biologics-focused ...
... 5 CardiacAssist, Inc. announced that,it reached a new high ... least one TandemHeart case during the third quarter of 2008.,In ... on,year growth in case activity with a leap of 64 ... and 497 %. Through nine months of 2008,CardiacAssist has also ...
... 15 to 21 Percent, FRANKLIN LAKES, N.J., Nov. 5 , ... to a record $0.58 from $0.39 in ... intangible assets from the 2003 spin-off, increased ... third-quarter 2007 -- Both GAAP diluted EPS, and diluted EPS ...
... Still to be Discovered!, CHERRY HILL, N.J., Nov. ... Sclerosis Association of America (MSAA),provides a virtual volunteer opportunity ... unable to do so in the traditional sense of,working ... a group of 4,000 "detectives" to locate and report ...
... a new report from Harvard Medical School. The report, Viruses and Infectious ... and urges adults to seek out new vaccines and renew their old ... ... are not up to date on their vaccinations, says a new report ...
... new step taken by EarthSearch further reflects their aggressive plans ... in transit around the globe through their integrated GPS/RFID technology. ... ... 5, 2008 -- EarthSearch Communications International, Inc., a leading supplier ...
Cached Medicine News:Health News:Insmed to Present at Upcoming Healthcare Conferences 2Health News:CardiacAssist, Inc. Announces Record Breaking Site Activity and Financial Results 2Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 2Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 3Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 4Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 5Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 6Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 7Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 8Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 9Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 10Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 11Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 12Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 13Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 14Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 15Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 16Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 17Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 18Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 19Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 20Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 21Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 22Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 23Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 24Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 25Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 26Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 27Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 28Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 29Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 30Health News:Medco Reports Record Third-Quarter 2008 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63 31Health News:Multiple Sclerosis Association of America's Resource Detectives(SM) Program Marks One Year Anniversary 2Health News:New Vaccines for Adults: Which do you Need? From Harvard Medical School 2Health News:EarthSearch Communications International Joins Motorola's Enterprise Mobility Business PartnerSelect Program 2
(Date:7/10/2014)... 10, 2014 CVS Caremark Corporation (NYSE: ... approved a quarterly dividend of $0.275 (27.5 cents) per share ... August 1, 2014, to holders of record on July 21, ... Caremark is dedicated to helping people on their path to ... the United States . Through the company,s more ...
(Date:1/15/2014)... , Jan. 15, 2014 /PRNewswire-iReach/ -- ChinaMarketResearchReports.com adds ... its store . (Photo: http://photos.prnewswire.com/prnh/20140115/MN46792 ... upgrade and policy support, China,s ... years, with total market size rising from 3.28 billion ...
(Date:1/15/2014)... 2014 As health officials across the Midwest warn against ... in Michigan will offer free diagnostic ... Meijer pharmacists to administer tests and, in some cases, fill ... participating in the study. The Grand ...
Breaking Medicine Technology:Orthopedic Instrument Industry in China Markets Forecast to 2015 2Orthopedic Instrument Industry in China Markets Forecast to 2015 3Meijer Pharmacy Offers Free Flu, Strep Testing as Influenza Cases Rise Across the Midwest 2Meijer Pharmacy Offers Free Flu, Strep Testing as Influenza Cases Rise Across the Midwest 3
... March 29, 2011 Promidian, a management consulting ... today announced top-line survey findings about the increasing ... patient-centric delivery-of-care model that is rapidly gaining nationwide ... access to health care—while reducing costs. ...
... Today MEDRAD, INC. announced that Jack Darby has ... In his new role, Darby will act as general ... the business on a global scale, and will also ...   http://photos.prnewswire.com/prnh/20110329/NE73380 ) (Logo: http://photos.prnewswire.com/prnh/20040309/MEDRADLOGO) ...
Cached Medicine Technology:Promidian Survey Finds Growing Support for Patient-Centered Medical Home 2MEDRAD® Announces New Head of Interventional Business 2MEDRAD® Announces New Head of Interventional Business 3
Barkan Goniotomy Knife: 4" (11.4 cm), 2.5 mm blade....
... proven that the management of diabetes in order ... is the most effective way to reduce or ... at maintaining or improving a diabetes patients quality ... , ,These have been the guiding factors ...
... diabetes requires making decisions about insulin dosages ... These decisions are guided by data from ... and by the patterns that can be ... Providers when the data is presented in ...
... Photocoagulator - Portable and rugged solid-state photocoagulator ... and operating room. Built to high-duty cycle ... most demanding environments, the Novus Verdi can ... full line of accessories for private practice ...
Medicine Products: