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:10/13/2017)... ... October 13, 2017 , ... Many families have long-term insurance that covers ... companies have a waiver for care if the client has a cognitive impairment diagnosis. ... pays for care, is often waived, so the benefits from their insurance start immediately,” ...
(Date:10/13/2017)... Abilene, Texas (PRWEB) , ... October 13, 2017 , ... ... publication this week that explains one of the most popular and least understood books ... seems like cryptic and puzzling descriptions that have baffled scholars for centuries. Many have ...
(Date:10/13/2017)... , ... October 13, 2017 , ... “America On The ... identity. “America On The Brink” is the creation of published author, William Nowers. ... great-grandchildren. As a WWII veteran, he spent thirty years in the Navy. ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... meet the demand of today’s consumer and regulatory authorities worldwide. From Children’s to ... and tested to meet the highest standard. , These products are also: ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information ... we intend to develop to enable prevention of a major side effect of ... loss, especially in pediatric patients. For cisplatin, hearing loss is FDA listed on-label ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... Hill-Rom Holdings, Inc. (NYSE: HRC), will host its fiscal ... Friday, November 3, 2017, beginning at 7:00 a.m. (CDT) ... a.m. (CDT) / 9:30 a.m. (EDT). In ... guidance for 2018, Hill-Rom executives will also highlight the ... long-range financial outlook through 2020. ...
(Date:9/25/2017)...   Montrium , an industry leader in ... IQPC Trial Master Files & Inspection Readiness Conference ... Clinical Services has selected eTMF Connect ... EastHORN, a leading European contract research organization (CRO), ... to enable greater collaboration with sponsors, improve compliance ...
(Date:9/22/2017)... -- AVACEN Medical (AVACEN) announced that its CE-Marked AVACEN ... with the widespread pain associated with fibromyalgia in the ... Essex, England commented, "I had difficulty ... sleep at all, tremendous pain, with every movement sending ... AVACEN 100] enough, how this has and is helping ...
Breaking Medicine Technology: