Navigation Links
New Stem Cells lines will be required

According to experts, existing stem cell lines could aggregate genetic abnormalities over time and new stem cell lines will likely be needed. According to Dr.Vogelstein, chairman of a key stem cell research committee of the National Research Council and Institute of Medicine, the current stem cell lines are problematic because they accumulate mutations as they grow.// Every time a cell divide in a tissue culture it accumulates mutations. In aggregate those mutations may cause certain problems.

Vogelstein and other medical experts justified before a Senate appropriations subcommittee. Stem cells are unspecialized cells that can become any cell type with specialized functions. They can be gleaned from several sources, such as placenta, umbilical cords and adult cells, but scientists say those originated from human embryos are most useful for therapeutic and research applications.

Stem cells, if implanted in a patient, could multiply cells afresh, offering cures for intractable diseases like Parkinson's disease, Alzheimer's and diabetes. But that decision permits federal funding only on the some 50 existing stem cell lines that have already been derived.

While stem cell providers the world over are looking to the National Institutes of Health to fund stem cell research on those existing lines, experts like Vogelstein warn of problems. One issues is that many of the existing lines were "cultured with animal cells and serum" creating the fear that pathogens in mice or cows could be transmitted to humans if the stem cells are used for therapeutic applications.

Another problem is that patient's immune system may attack the newly introduced stem cells. One way of sidestepping the problem is through a process known as somatic cell nuclear transfer or SCNT. That procedure, also known as therapeutic cloning, involves taking DNA from a cell belonging to a patient and inserting it into an egg whose nucleus has been removed. When the cell divides, it produces stem cells that can be put in the patient without causing an immune response.

But some lawmakers would like to see so-called therapeutic cloning -- which, unlike reproductive cloning, will never result in a birth -- outlawed. A proposed measure by Sen. Sam Brownback, R-Kan., would outlaw the act of therapeutically cloning a human embryo. It would also ban the importation of products derived from therapeutic cloning.

Vogelstein said such a ban could mean that "regenerative medical applications will never occur and people with terrible diseases won't be healed." He also said that since much biomedical research is international, "it's likely most useful lines and reagents will be developed outside the U.S." Therefore, a ban on importation would also curtail important research.


'"/>




Related medicine news :

1. Blood Cells Capable of Regenerating Liver
2. White Cells Count Can Predict Heart Attack Death Risk
3. Gene Therapy Destroys Pancreatic Cancer Cells
4. Stem Cells Have Few Mutations
5. Heart may pull Cells from Body to Self-repair
6. Cells critical for asthma development found
7. Vitamin D Wipes out Cancer Cells
8. Bone Marrow Cells Help Heart Attack Patients
9. Islet Cells May Lead to Diabetes CureChildren
10. Stem Cells Found To Offer Promise For Hair Growth
11. Bone Marrow Cells Could Yield A New Lease of Life
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/25/2017)... ... June 25, 2017 , ... CareSet Labs released the Root NPI Graph today ... a new, greatly improved version of the Doctor Referral teaming dataset commonly available from ... and subsequently called the the “Doctor Referral Dataset” as released by Medicare and “DocGraph” ...
(Date:6/24/2017)... (PRWEB) , ... June 24, 2017 , ... ... in Erie, PA at the Sheraton Erie Bayfront and Erie Convention Center on ... based medicine experience, exhibits, a student quiz bowl, award and scholarship presentations, and ...
(Date:6/23/2017)... ... June 23, 2017 , ... The Rhode Island Quality Institute ... Alerts and Dashboards, an innovative new service enabling healthcare providers to proactively coordinate ... Alerts and Dashboards provide near real-time data about patients admitted to and/or discharged ...
(Date:6/23/2017)... ... ... Studies show evidence that carotenoids and antioxidants derived either from the diet or ... But how often do ophthalmologists and optometrists in Sweden recommend the use of nutritional ... early symptoms of AMD? A study published recently in Dove Medical Press ...
(Date:6/23/2017)... ... June 23, 2017 , ... Everybody has their own personal ... prefer to read it, and some people don't like it at all. FindaTopDoc took ... they found: , Erotic literature can give readers a taste of their deepest, darkest ...
Breaking Medicine News(10 mins):
(Date:6/13/2017)... Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH), ... U.S. Food and Drug Administration (FDA) has notified the Company ... its Zhejiang, China manufacturing facility has ... successful clearance of the Warning Letter related to our ... measure of the progress we have made in our ongoing ...
(Date:6/9/2017)... and INDIANAPOLIS , June 9, ... living with diabetes. In a further effort to help ... affected by this condition, the International Diabetes Federation (IDF) ... ) have come together for the second phase of ... Systems programme (BRIDGES 2), reaffirming their commitment to helping ...
(Date:6/7/2017)... -- Novavax, Inc., (Nasdaq: NVAX ) today announced that ... its RSV F protein recombinant nanoparticle vaccine candidate (RSV F ... in the journal Vaccine (the data ... conferences). The Company previously announced top line results ... RSV F Vaccine with the goal of protecting infants from ...
Breaking Medicine Technology: