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 nt of cities, said Lahn.

Medindia More Related Links :

Medindia.net - Know your body :

The Central nervous system consists of the brain, the spinal cord, and the body’s. These hemispheres make up 70% of the whole brain and nervous system....

For More Information Read :

www.medindia.net/know_ur_body/index.asp

Radio-guided Neurosurgery for treatment of Brain cancer :

Radio-guided Neurosurgery using a gamma probe for the treatment of brain cancer is the new technology developed by doctors at The Manipal Institute of ...

For More Information Read :

www.medindia.net/news/view_news_main.asp?x=4704
'"/>




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:


(Date:6/27/2016)... ... June 27, 2016 , ... ... patient payment industry today announced its strategic partnership with Connance, a healthcare ... , The two companies’ proven, proprietary technology combine to provide health systems, ...
(Date:6/26/2016)... ... 26, 2016 , ... On June 10-11, 2016, A Forever Recovery, a holistic ... World’s Longest Breakfast Table in Battle Creek, MI, where the rehabilitation facility is located. ... some of the world’s leading providers of cereal and other breakfast foods. Its residents ...
(Date:6/26/2016)... ... June 26, 2016 , ... ... have been diagnosed with endometriosis. These women need a treatment plan to not ... comprehensive approach that can help for preservation of fertility and ultimately achieving a ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture animations, ... Christina Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms ... Final Cut Pro X . Simply select a ProHand generator and drag it above ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van Mitchell, Secretary ... Work award to iHire in recognition of their exemplary accomplishments in worksite health promotion. ... Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... Research and Markets has announced ... Type (Organic Chemical (Sugar, Petrochemical, Glycerin), Inorganic Chemical), Functionality ... - Global Forecast to 2021" report to their ... global pharmaceutical excipients market is projected to reach USD ... in the forecast period 2016 to 2021. ...
(Date:6/23/2016)... 2016 Roche (SIX: RO, ROG; OTCQX: RHHBY) ... Elecsys BRAHMS PCT (procalcitonin) assay as a dedicated testing ... With this clearance, Roche is the first IVD company ... for sepsis risk assessment and management. PCT ... PCT levels in blood can aid clinicians in assessing ...
(Date:6/23/2016)... June 23, 2016 Capricor ... ), a biotechnology company focused on the discovery, ... that patient enrollment in its ongoing randomized HOPE-Duchenne ... exceeded 50% of its 24-patient target. Capricor expects ... third quarter of 2016, and to report top ...
Breaking Medicine Technology: