Navigation Links
U.S. Stem Cell Research Seems to Focus on Two Lines
Date:8/7/2009

Experts urge federal government to preserve study options

FRIDAY, Aug. 7 (HealthDay News) -- Only two of 21 approved human embryonic stem cell lines are routinely used by researchers in the United States, says a new study.

The study found that two cell lines, known as H1 and H9, accounted for 941 of 1,217 requests, or 77 percent, placed by scientists since 1999 for human embryonic stem cell lines housed at the two largest stem cell banks in the country.

Another line, H7, was requested 111 times, and 13 other lines were requested fewer than 10 times.

The study's authors also found that H9 was discussed in 83 percent of 534 published studies from 1999 to 2008, H1 was discussed in 61 percent and H7 in 24 percent. The total is more than 100 percent because many studies used more than one cell line.

"I was surprised by the results," Christopher Scott, director of Stanford University's Program on Stem Cells in Society, said in a news release. "I never imagined that we would find that three-fourths of the requests would be for the same two cell lines."

The study appears in the Aug. 7 issue of Nature Biotechnology.

Scott and his fellow researchers said the findings raise concerns about the reauthorization process of stem cell lines under way at the U.S. National Institutes of Health. If the lines that have been in use are excluded from federal funding because of ethical considerations, they said, scientists might abandon research on them in favor of other cell lines.

However, they added, the two most-used lines might have abnormalities or other characteristics that would make them less useful than newer lines.

Future NIH policies should preserve scientists' ability to continue work on the well-studied lines while also encouraging the study of new lines expected to become eligible for federal funding, Scott said.

More information

The U.S. National Institutes of Health has more about stem cells.



-- Robert Preidt



SOURCE: Stanford University, news release, Aug. 7, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Yerkes researchers propose ambitious new strategies for AIDS vaccine research
2. LCA Announces More Requests for Bids on Lung Cancer Research Programs Funded Through the Department of Defense
3. Angelman Syndrome Foundation Takes Major Step Toward Furthering Research Efforts
4. UC design research points the way so you wont get lost at the hospital
5. Sperm Cell Insights May Aid Stem Cell Research
6. New Research Suggests Most Are Willing to Make Tradeoffs and Would Embrace Comprehensive Health Care Reform
7. EHE International Supports The Michael J. Fox Foundation for Parkinsons Research
8. Cryo-Cell to Present Novel Adult Stem Cell Research During 2009 China Medical Biotech Forum
9. Dartmouth gets $3 million from the National Science Foundation for IT research in health care
10. The Scleroderma Foundation Applauds Introduction of First Bill in the Senate Promoting Research and Awareness of Scleroderma
11. Researchers Identify New Method to Selectively Kill Metastatic Melanoma Cells
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
U.S. Stem Cell Research Seems to Focus on Two Lines
(Date:6/25/2016)... ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on June ... , brings up a new, often overlooked aspect of head lice: the parasite’s ability to ... is not a common occurrence, but a necessary one in the event that lice have ...
(Date:6/25/2016)... ... 25, 2016 , ... Dr. Calvin Johnson has dedicated his ... implemented orthobiologic procedures as a method for treating his patients. The procedure is ... to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to help ...
(Date:6/24/2016)... ... ... Those who have experienced traumatic events may suffer from a complex set ... drug or alcohol abuse, as a coping mechanism. To avoid this pain and suffering, ... traumatic event. , Trauma sufferers tend to feel a range of emotions, from depression, ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg ... Legal Elite. The attorneys chosen by their peers for this recognition are considered among ... Greenberg Traurig Shareholders received special honors as members of this year’s Legal Elite Hall ...
(Date:6/24/2016)... ... 24, 2016 , ... People across the U.S. are sharpening their pencils and ... essay contest in which patients and their families pay tribute to a genetic counselor ... National Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) this September. , ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , Belgium , June 24, ... VNRX), today announced the appointment of Dr. ... Directors as a Non-Executive Director, effective June 23, ... Audit, Compensation and Nominations and Governance Committees.  As ... Futcher will provide independent expertise and strategic counsel ...
(Date:6/23/2016)... , June 23, 2016 Research and ... Global Market - Forecast to 2022" report to their ... treatment method for the patients with kidney failure, it replaces ... fluid from the patient,s blood and thus the treatment helps ... and chloride in balance. Increasing number of ...
(Date:6/23/2016)... ITASCA, Ill. , June 23, 2016  In a startling ... states are failing their residents by lacking a comprehensive, proven plan ... , a definitive ranking of how states are tackling the ... rating to only four states – Kentucky , ... and Vermont . Of the 28 failing states, ...
Breaking Medicine Technology: