Navigation Links
U.S. Stem Cell Research Seems to Focus on Two Lines

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:
Related Image:
U.S. Stem Cell Research Seems to Focus on Two Lines
(Date:11/27/2015)... ... ... According to an article published November 6th by The Telegraph, ... British Columbia suggested that laws requiring bicyclists to wear helmets may not actually decrease ... reason for the controversial conclusion is that, while helmets have certainly prevented a great ...
(Date:11/27/2015)... ... 27, 2015 , ... "When I was traveling, I was ... N.J. "Many people catch diseases simply from sitting on such dirty toilet seats. ... from germs." , He developed the patent-pending QUDRATECS to eliminate the need to ...
(Date:11/27/2015)... , ... November 27, 2015 , ... ... of progress through sharing, the 2016 Building Better Radiology Marketing Programs ... will begin on Sunday, March 6, 2016, at Caesars Palace in Las Vegas ...
(Date:11/27/2015)... (PRWEB) , ... November 27, 2015 , ... CBD ... Accreditation of Allied Health Education Programs (CAAHEP) awarded accreditation to its Diagnostic Medical Sonography ... CAAHEP accredited colleges, as only one of twelve colleges and universities in the state ...
(Date:11/26/2015)... , ... November 26, 2015 , ... ... abuse located in central Michigan, have come together on Thanksgiving Day to share ... video, available for viewing on the Serenity Point YouTube channel, patients displayed what ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... PUNE, India , November ... --> ... / personal emergency response system ... grow steadily for 5 years ... growing region expected to see ...
(Date:11/26/2015)... WILMINGTON, North Carolina , 26 november ... Laboratories, Inc. (AAIPharma/CML) kondigt de geplande investering ... de uitbreiding van de laboratoria en het ... . De uitbreiding zal resulteren in ... waarmee wordt voldaan aan de groeiende behoeften ...
(Date:11/26/2015)... Nederland, November 26, 2015 ... Een nieuwe aanpak combineert immunotherapie met Bremachlorin-photodynamische ... ) --> ...      (Photo: ) ... Universitair Medisch Centrum (LUMC) blijkt ...
Breaking Medicine Technology: