Navigation Links
Human Brain Continues To Evolve And Grow

Researchers at the University of Chicago have discovered intriguing findings that lead them to conclude that the human brain is apparently still evolving.

There are two genes linked to the size// of the brain and these genes are still evolving and changing in humans.

Bruce Lahn, an assistant professor of human genetics and a lead researchers of paper published in Science said: “Our studies indicate the trend that is the defining characteristic of human evolution -- the growth of brain size and complexity -- is likely still going on,"

"Meanwhile, our environment and the skills we need to survive in it are changing ... I would expect the human brain, which has done well by us so far, will continue to adapt to those changes," added Lahn.

The scientists looked at the evolutionary history of two genes -- microcephalin and abnormal spindle-like microcephaly-associated (ASPM) -- which appear to regulate brain size. Over thousands of years, both genes seem to be generating new and improved versions of themselves and this beneficial mutations is spreading rapidly among the human population to reshape and strengthen brain capacity.

"We're seeing two examples of such a spread in progress," said. Lahn "In each case, it's a spread of a new genetic variant in a gene that controls brain size. This variant is clearly favored by natural selection."

He emphasized that evolution doesn't occur at the species level but some individuals acquire a specific genetic mutation, and, because that variant confers on those who bear it a greater likelihood of survival, it then spreads in rest of the population.

The microcephalin gene, the variation arose about 37,000 years ago and this coincides with the time period when art, music and tool-making were emerging. For ASPM, the variation arose about 5,800 years ago, approx. coinciding with the development of written language, spread of agriculture and developme
'"/>




Page: 1 2

Related medicine news :

1. Human Genome Project Achieves Technological Triumph
2. First Vaccine Designed for Africa Cleared for Testing in Humans
3. Human gene number increases
4. Scientists found ancient Human Germ Killer
5. New standards for Human Research Safety
6. Human wasting disease linked to a gene
7. The Human Mad Cow Case
8. Human Growth Hormone Found To be Dangerous For Human Use
9. Human Antibody That Can Block SARS
10. Human immunity system can battle HIV.
11. Two New Human Papilloma virus (HPV) vaccines to prevent cervical cancer

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Human Brain Continues Evolve And Grow

(Date:11/29/2009)..., SANTA CRUZ, CA--New connections begin to form b...earn a new task, according to a study published th...versity of California, Santa Cruz, the study invol...s that take place in the brain during motor learni...trained to reach through a slot to get a seed. The...
(Date:11/29/2009)...any doctors unaware the sleep disorder boosts urin...ov. 29 (HealthDay News) -- People who wake up duri...ame a urological problem. Sleep apnea, a breathing...A new study suggests that nighttime urination, or ...r for obstructive sleep apnea, a disorder in which...
(Date:11/28/2009)..., , CHICAGO, Nov. 28 Get...on practice in the clinical routine when Sieme...entific Assembly and Annual Meeting of the Radiolo...r 29 to December 3 at McCormick Place (Booth #825,.... With syngo. via , Siemens, new imaging s...
(Date:11/27/2009)..., , BEDFORD, Mass., Nov. 27 /PRNewswire-Fi...e "Company"), a supplier of precision technology p... that an annual meeting of the Company,s sharehold... The time and location of the meeting will be ann...e Company received a requisition notice from Steph...
(Date:11/27/2009)..., , SAN FRANCISCO, Nov. 27 /PRNewswire-First... announced that Blair Lambert, CFO/COO, will prese...will be held at the May Fair Hotel in London, Engl... GMT. ,, To listen to a live broadcast of The G...et, please log on to www.gymboree.com, click on "O...
Breaking Medicine News(10 mins):Health News:Study shows new brain connections form rapidly during motor learning 2Health News:Study shows new brain connections form rapidly during motor learning 3Health News:Sleep Apnea May Cause Nighttime Urination 2Health News:Sleep Apnea May Cause Nighttime Urination 3Health News:Siemens Boosts Advanced Image Reading Efficiency and Opens New Path Into The Clinical Routine with syngo(R).via 2Health News:Siemens Boosts Advanced Image Reading Efficiency and Opens New Path Into The Clinical Routine with syngo(R).via 3Health News:Siemens Boosts Advanced Image Reading Efficiency and Opens New Path Into The Clinical Routine with syngo(R).via 4Health News:Siemens Boosts Advanced Image Reading Efficiency and Opens New Path Into The Clinical Routine with syngo(R).via 5Health News:GSI Group Calls Shareholders Meeting 2
...Health Minister Dr Anbumani Ramadoss, in an attemp...ese Encephalitis has left for Beijing to approach ...able in a sizeable // quantity. The heavy toll of ...iled discussions with the Chinese minister for Nat...
...Doctors say they want to investigate the case of a...of the virus, reports BBC. // Two Sunday news...in London, was diagnosed as HIV-positive in 2002, ... tests. Stimpson did not take any medication for H...
...Study results showed that people who lived longer ... social position. The research study was carried o...d's School of Public Health who reported their fin...ildren’s with a score more than 130 are considered...
...John Cacioppo and researchers have found that the ...d it runs in to families making it a genetic chara...le should join a group which has more social chara...nd they found that loneliness is not related to he...
...A new study appearing in the November 1, 2005 issu...that a new gene profile may help in predicting how...nd to aggressive chemotherapy. // In many patie...nce of chemotherapy-resistant cancer cells, most p...
...In a breakthrough, which could eventually lead to ...he HIV virus, scientists from the US National Canc...ving in the human body to produce chemicals that b... bacteria. The researchers have successfully...
Other Medicine News:Health News:Indian Government Keen On JE Vaccine Supply And Patenting Of Indian Medicine Formulations 2Health News:British man 'Recovered from HIV' 2Health News:Genetic Profile To Predict Ovarian Cancer Prognosis 2Health News:Genetically modified bacteria to combat HIV 2
(Date:11/27/2009)... ACUO TECHNOLOGIES, developers of h... data migration tools and services, is pleased to ...rk Office has approved a patent application for an...work." Acuo Technologies is pleased to add the U.S.... In general, the granted patent application broad...
(Date:11/25/2009)...5 Heska Corporation ( HS...iagnostic and specialty products to the veterinary...iagnostics Corporation for the supply of blood gas...inary market. ,, (Logo: http://www.newscom...a and Roche share the same passion for innovating ...
(Date:11/25/2009)...wswire/ -- BioTrends Research Group, Inc. released...eport, the first in a multi-phase syndicated marke... Ortho-Biotech,s Stelara, from product launch thro...ve of the report provides quantitative information...ormation from a subset of 20. The reports assess ...
Breaking Medicine Technology:Acuo Technologies Announces Patent for Asset Communication Format Within a Computer Network 2Heska Announces Supply Agreement With Roche Diagnostics 2Heska Announces Supply Agreement With Roche Diagnostics 3Despite Managed Care Obstacles, Interest and Anticipated Use of Centocor Ortho-Biotech's New Psoriasis Agent Stelara (ustekinumab) is High 2FDA Issues Guidance for Derma Sciences Exclusive Wound Dressing With pDADMAC 60241 1FDA Issues Guidance for Derma Sciences Exclusive Wound Dressing With pDADMAC 60241 2FDA Issues Guidance for Derma Sciences Exclusive Wound Dressing With pDADMAC 60241 3FDA Issues Guidance for Derma Sciences Exclusive Wound Dressing With pDADMAC 60241 4Dr Ken Dychtwald to Discuss Looming Caregiver Crunch and the Importance of Proactive Long Term Care Planning 60239 1Dr Ken Dychtwald to Discuss Looming Caregiver Crunch and the Importance of Proactive Long Term Care Planning 60239 2Pittsburgh Partners Launch Promising Family Centered Care Model 3A Special Focus on Promoting Parental Well Being and Healthy Child Development 60237 1Pittsburgh Partners Launch Promising Family Centered Care Model 3A Special Focus on Promoting Parental Well Being and Healthy Child Development 60237 2Pittsburgh Partners Launch Promising Family Centered Care Model 3A Special Focus on Promoting Parental Well Being and Healthy Child Development 60237 3Pittsburgh Partners Launch Promising Family Centered Care Model 3A Special Focus on Promoting Parental Well Being and Healthy Child Development 60237 4Pittsburgh Partners Launch Promising Family Centered Care Model 3A Special Focus on Promoting Parental Well Being and Healthy Child Development 60237 5Pittsburgh Partners Launch Promising Family Centered Care Model 3A Special Focus on Promoting Parental Well Being and Healthy Child Development 60237 6
...y 21 Romark Laboratories, L.C., a,privately-owned...mpletion,of enrollment into its Phase II clinical ...oxanide in combination with standard of care thera...ype 1 who have previously,failed to respond to the...irin). The company expects to announce interim dat...
...rgentina, May 21 Today at the,World Congress of C...w,Perspectives in Atrial Fibrillation Management" ...ogy, St George,s University of London,highlighted ...cal trial,results, as the way forward in the futur...on form of cardiac arrhythmia., To view the Multi...
Other Medicine Technology:Romark Laboratories Completes Enrollment in U.S. Phase II Study of Nitazoxanide for Chronic Hepatitis C Genotype 1 Non-Responders 2Romark Laboratories Completes Enrollment in U.S. Phase II Study of Nitazoxanide for Chronic Hepatitis C Genotype 1 Non-Responders 3ATHENA Clinical Results for Dronedarone (Multaq(R)) Highlighted at the World Cardiology Congress 2ATHENA Clinical Results for Dronedarone (Multaq(R)) Highlighted at the World Cardiology Congress 3ATHENA Clinical Results for Dronedarone (Multaq(R)) Highlighted at the World Cardiology Congress 4ATHENA Clinical Results for Dronedarone (Multaq(R)) Highlighted at the World Cardiology Congress 5ATHENA Clinical Results for Dronedarone (Multaq(R)) Highlighted at the World Cardiology Congress 6
Maumenee tying forceps
Anis tying forceps
McPherson tying forceps
Harms-Tubingen Straight Tying Forceps
Medicine Products: