Navigation Links
Stem Cell Activity Deciphered in the Aging Brain

Neurobiologists have discovered why the aging brain produces progressively fewer new nerve cells in its learning and memory center.// The scientists said the finding, made in rodents, refutes current ideas on how long crucial "progenitor" stem cells persist in the aging brain.

The finding also suggests the possibility of treating various neurodegenerative disorders, including Alzheimer's disease, dementia and depression, by stimulating the brain's ability to produce new nerve cells, said senior study investigator Ashok K. Shetty, Ph.D., professor of neurosurgery at Duke University Medical Center and medical research scientist at Durham VA Medical Center. Results of the study appear online in the journal Neurobiology of Aging. The National Institutes of Health and the U.S. Department of Veterans Affairs funded the research.

Previous studies by Shetty and others had demonstrated that as the brain ages, fewer new nerve cells, or neurons, are born in the hippocampus, the brain's learning and memory center. In one study, Shetty and colleagues showed that the production of new neurons in rats slows down dramatically by middle age -- the equivalent of 50 years in humans.

But scientists did not know what causes this decline. The common assumption had been that the brain drain was due to a decreasing supply of neural stem cells in the aging hippocampus, said lead study investigator Bharathi Hattiangady, Ph.D., research associate in neurosurgery. Neural stem cells are immature cells that have the ability to give rise to all types of nerve cells in the brain. In the current study, however, the researchers found that the stem cells in aging brains are not reduced in number, but instead they divide less frequently, resulting in dramatic reductions in the addition of new neurons in the hippocampus.

To conduct their census, the researchers attached easy-to-spot fluorescent tags to the neuronal stem cells in the hippocampus in young, mi
'"/>




Page: 1 2

Related medicine news :

1. Restricted Activity Predicts Disability
2. Do Asthma Sufferers Lack Physical Activity?
3. Midlife Brain Activity a Predictor Of Alzheimer’s Diseas
4. Asthma Sufferers Lacking Physical Activity
5. Activity Found To Improve Sleep In The Elderly
6. Physical Activity Good For Developing Cognitive Skills
7. The Consequences Of Stopping Physical Activity
8. Physical Activity During Leisure Can Reduce Risk Of Stroke
9. Gene Activity connected to Schizophrenia
10. New Technique To Detect Activity Of Drugs In The Body
11. Women With Anorexia Have Altered Brain Activity
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Stem Cell Activity Deciphered the Aging Brain

(Date:7/13/2014)... The North American water storage systems market is estimated ... by 2018, at a CAGR of 21.0%, from 2013 to ... rapid pace in North America. The U.S. is experiencing high ... wastewater storage and collection, and the increased spending on modernization ... a healthy rate in Canada, and is rising at a ...
(Date:7/13/2014)... (PRWEB) July 13, 2014 Fuel additives ... as gasoline, diesel, jet fuel, kerosene, and so on, ... also responsible for reducing the corrosion effects caused by ... when added to any fuel, provide economies of scale ... these escalate the overall cost of the fuel products. ...
(Date:7/13/2014)... Serena Gordon HealthDay Reporter ... type of sensor for people with diabetes is being developed ... of blood, researchers report. Scientists at Brown University in ... artificial saliva. It uses light, metal and a special enzyme ... knows that diabetics have to prick their fingers to draw ...
(Date:7/13/2014)... 13, 2014 Recently, 2014QuinceaneraDresses.com, the ... unveiled its new range of gorgeous Quinceanera ... the demand for elegant Quinceanera outfits is huge. ... items. All the company’s newly released dresses are ... are all elegant and vivid. , It ...
(Date:7/13/2014)... Epidemiologists forecast an increase in the ... 8,062 diagnosed incident cases in 2013 to 11,568 diagnosed ... (AGR) of 4.35%, during the forecast period. In 2023, ... incident cases of aGVHD in the 6MM, with 4,989 ... number of diagnosed incident cases of aGVHD, with 704 ...
Breaking Medicine News(10 mins):Health News:North American Water Storage Systems Market is Expected to Reach $5,450 million by 2018 - New Report by MicroMarket Monitor 2Health News:North American Water Storage Systems Market is Expected to Reach $5,450 million by 2018 - New Report by MicroMarket Monitor 3Health News:North America Fuel Additives Market is Expected to Reach $8,100 Million by 2017 - New Report by MicroMarket Monitor 2Health News:North America Fuel Additives Market is Expected to Reach $8,100 Million by 2017 - New Report by MicroMarket Monitor 3Health News:North America Fuel Additives Market is Expected to Reach $8,100 Million by 2017 - New Report by MicroMarket Monitor 4Health News:Saliva Test Might Someday Replace Needle Prick for Diabetics 2Health News:Saliva Test Might Someday Replace Needle Prick for Diabetics 3Health News:2014QuinceaneraDresses.com Releases Its New Quinceanera Dresses 2Health News:Graft-Versus-Host Disease Market (GVHD) Growing at 4.35% AGR to 2023 Says a New Report Available at ReportsnReports.com 2Health News:Graft-Versus-Host Disease Market (GVHD) Growing at 4.35% AGR to 2023 Says a New Report Available at ReportsnReports.com 3Health News:Graft-Versus-Host Disease Market (GVHD) Growing at 4.35% AGR to 2023 Says a New Report Available at ReportsnReports.com 4
... Gribbin of Clarksburg, president and CEO of CentraState Healthcare ... the board of the New Jersey Hospital Association (NJHA), ... well as the appointment of new board members, was ... Regency Princeton. "Here in our state, the enormous problems ...
... A French study reported in the 12th January issue ... a strong correlation between blood pressure and outdoor temperature ... result, the investigators advise that, during periods of extreme ... "could contribute to reducing the consequences of blood pressure ...
... at National Jewish Health and the University of Colorado Denver ... among patients with acute lung injury. Acute lung injury (ALI) ... low oxygen levels in the blood, and fluid in the ... intensive care units, afflicting almost 200,000 people in the United ...
... As the health insurance market increasingly becomes consumer-driven, BlueCross ... shopping for insurance with face-to-face assistance at the company,s ... 23 in Mount Pleasant, S.C.Located at 615 Johnnie Dodds ... Shopping Center, the 1,800 square foot SC BlueStore(SM) ...
... BEAVERTON, Ore., Jan. 16 Includesdental.com announces ... for dentists, hygienists and other oral health ... to search for product reviews, clinical research, ... across thousands of sites."With Includesdental.com, dentists can ...
... severity among female patients., , , FRIDAY, Jan. 16 (HealthDay ... often and more severely than men, new research suggests. ... from around the world who had RA, about 79 ... had poorer outcomes in key measures such as symptoms ...
Cached Medicine News:Health News:Hospital Association Names New Chairman, Appoints Board Officers and New Members 2Health News:Seasonal variation in blood pressure 2Health News:Gene associated with reduced mortality from acute lung injury 2Health News:S.C. BlueCross to Open Its First Health Insurance Retail Store 2Health News:Includesdental.com Announces Search Engine for Dentists, Hygienists and Oral Health Industry 2Health News:Rheumatoid Arthritis Hits Women Harder 2
(Date:7/11/2014)... ALBANY, New York , July 11, 2014 /PRNewswire/ ... published by Transparency Market Research "Endoscopy Devices Market (Endoscopes, ... Analysis, Size, Share, Growth, Trends and Forecast, 2013-2019" the ... billion in 2012 and is expected to grow at ... reach an estimated value of USD 36.9 billion in ...
(Date:7/10/2014)... 2014  Major advances in radiation therapy and ... highlighted in a three-day Oncology Summit taking place ... 2014.  Renowned national and international cancer experts from seven ... exchange knowledge on modern technologies making treatment for ... The Summit will address a wide ...
(Date:7/10/2014)... July 10, 2014  RESMED INC. (NYSE: RMD ... and fiscal year ended June 30, 2014 results on Thursday, ... close. A press release with ResMed,s results will be issued ... host a webcast to discuss operating results and future outlook. ... 1:30 p.m. US Pacific Time and the live webcast of ...
Breaking Medicine Technology:Global Endoscopy Devices Market is Expected to Reach USD 36.9 Billion by 2019: Transparency Market Research 2Global Endoscopy Devices Market is Expected to Reach USD 36.9 Billion by 2019: Transparency Market Research 3Global Endoscopy Devices Market is Expected to Reach USD 36.9 Billion by 2019: Transparency Market Research 4Global Endoscopy Devices Market is Expected to Reach USD 36.9 Billion by 2019: Transparency Market Research 5Global Endoscopy Devices Market is Expected to Reach USD 36.9 Billion by 2019: Transparency Market Research 6Improving quality and access to advanced cancer care in India and South Asia 2Improving quality and access to advanced cancer care in India and South Asia 3Improving quality and access to advanced cancer care in India and South Asia 4Improving quality and access to advanced cancer care in India and South Asia 5ResMed To Announce Fourth Quarter And Fiscal Year-End 2014 Results 2
... -,Phytopharm plc (LSE: PYM) ("Phytopharm" or the ... reverses the,changes in the area of the ... be presented by Dr Jonathan Brotchie, an,internationally ... International Congress of Parkinson's Disease and Movement,Disorders' ...
... UVIDEM was well-tolerated with signs of durable,disease control ... 05, 2007 /PRNewswire-FirstCall/ -- IDM,Pharma, Inc. today presented ... vaccine clinical trial (DC-MEL-202). The,results showed that UVIDEM ... of immune response in patients with,progressive metastatic melanoma. ...
Cached Medicine Technology:Cogane Data Presented at ‘11th International Congress of,Parkinson’s Disease and Disorders’ 2Cogane Data Presented at ‘11th International Congress of,Parkinson’s Disease and Disorders’ 3Cogane Data Presented at ‘11th International Congress of,Parkinson’s Disease and Disorders’ 4Cogane Data Presented at ‘11th International Congress of,Parkinson’s Disease and Disorders’ 5IDM Pharma Presents Preliminary Results from Phase II UVIDEM,Melanoma Vaccine Clinical Trial 2IDM Pharma Presents Preliminary Results from Phase II UVIDEM,Melanoma Vaccine Clinical Trial 3IDM Pharma Presents Preliminary Results from Phase II UVIDEM,Melanoma Vaccine Clinical Trial 4IDM Pharma Presents Preliminary Results from Phase II UVIDEM,Melanoma Vaccine Clinical Trial 5
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
Medicine Products: