For example, red blood cells are specifically designed to carry oxygen through the blood. Eventually, the cells begin to differentiate, taking on a certain function in a part of the body. Stem cells are cells that haven’t differentiated yet.
For example, red blood cells are specifically designed to carry oxygen through the blood. Eventually, the cells begin to differentiate, taking on a certain function in a part of the body. Stem cells are cells that haven’t differentiated yet.Tags: Essay On The Inequality Of The Human Races TextThe Effect Of Media On Society EssayFibonacci Numbers EssayAuerbach Figura EssaySpss Homework HelpEssay On Tv Viewing Good Or BadA Descriptive Essay About My Grandfather
"It is particularly interesting because it uses new analytical techniques to advance our understanding of how the implementation of policy in one area can affect scientific research in another area."The research appears in the June 9 journal ."The incentives to use both types of cell in comparative studies are high," says Jason Owen-Smith, a sociologist at University of Michigan.
He notes the science behind adult tissue that can be "reprogrammed," to produce human induced pluripotent stem cells is still in its infancy, having become widely available in 2007."As a result, induced pluripotent stem cells do not offer an easy solution to the difficult ethical questions surrounding embryonic stem cell research," he says.
These stem cells come from developed organs and tissues in the body.
They’re used by the body to repair and replace damaged tissue in the same area in which they are found.
Researchers from the University of Michigan, Stanford University and the Mayo Clinic in Rochester, Minn.
recently investigated whether the increased number of studies with induced pluripotent stem (i PS) cells--adult cells that have been coaxed into an "embryo-like" state--has changed the overall course of research in the field.The researchers analyzed more than 2,000 scientific papers and found reprogrammed adult cells are not replacing human embryonic stems cells in the laboratory.Instead, the two cell types have proven to be complementary and any disruption of federal funding, they say, would negatively impact stem cell research overall."This is an important study that systematically examines the coauthorship networks of stem cell research articles and uses those to understand the interactions between two complementary areas of research," says Julia Lane, program director for Science of Science & Innovation Policy at the National Science Foundation, which funded the study.NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions.Each year, NSF receives more than 50,000 competitive proposals for funding and makes about 12,000 new funding awards.If federal funding stops for human embryonic stem cell research, it would have a serious negative impact on reprogrammed adult cell research, says Stanford University bioethicist Christopher Scott, one of the paper's co-authors."We may never be able to choose between i PS and ES cell research because we don't know which type of cell will be best for eventual therapies.""The whole point with science policy is to have a more scientific basis to understand the impacts of policy decisions on science if and when those decisions are made," says Lane.Stem cells are undifferentiated, or “blank,” cells.This means they’re capable of developing into cells that serve numerous functions in different parts of the body. These cells can only serve a specific purpose in a particular organ. The zygote divides into two cells, then four cells, and so on.For example, hematopoietic stem cells are a type of adult stem cell found in bone marrow.They make new red blood cells, white blood cells, and other types of blood cells.