Archive for the ‘Stem Cell Questions & Answers’ Category
Last Updated on Friday, 6 August 2010 08:46 Written by Administrator Friday, 6 August 2010 08:46
Question by Elizabeth: What are some concerns with stem cell use in cornea transplants?
I have a project to do for school, and one thing I have to do is research concerns with stem cell use in cornea transplants. What first came to mind was that many people see stem cell use as ethically unacceptable. However, after some research, I found that the stem cells come from another person’s eye, not an embryo, and no harm is done. So I’m a bit confused about what the concerns are?
Best answer:
Answer by BearPuncher
I would guess a scientific concern would be that the stem cells may replicate uncontrollably or not properly differentiate which could create a cancer. You may want to do some research on that.
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Tags: Cell, concerns, cornea, some, Stem, transplants | Posted under Stem Cell Questions & Answers | Comments Off
Last Updated on Wednesday, 4 August 2010 12:52 Written by Administrator Wednesday, 4 August 2010 12:52
Question by anchobii92: How do you refer to embryonic stem cells and reprogrammed skin cells to meiosis and mitosis?
The question pretty much says it all. What im trying to ask is: how do i identify the interrelationships of Meiosis and mitosis and the systemic level (ZYGOTE) with respect to stem cells and reprogrammed skin cells?
its one of my questions on my assignment and its really confusing me, any help would be much appreciated! 
Best answer:
Answer by Sand
Here are some useful site that may describe the question you have asked…
http://stemcells.nih.gov/StemCells/Templates/StemCellContentPage.aspx?NRMODE=Published&NRNODEGUID=%7b5C2D6485-9509-481F-B0E0-5F7865F5C69A%7d&NRORIGINALURL=%2fresearch%2fscilit%2fhighlights%2fhighlights2007%2ehtm&NRCACHEHINT=NoModifyGuest#reprogram
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1. Human stem cells
Human Skin Cells Reprogrammed
In 2006, Japanese scientists were able to reprogram adult mouse skin cells to behave like mouse embryonic stem cells, although the reprogrammed cells could not produce eggs or sperm (gametes).
The scientists named the cells iPS cells, for induced pluripotent stem cells.
In 2007, the Japanese researchers successfully generated gametes from iPS cells, and their results were verified and extended by another independent laboratory.
Now, simultaneous publications from the Japanese scientists and a team of NIH-supported scientists report that they have each succeeded at reprogramming adult human skin cells to behave like human embryonic stem cells (hESCs).
The Japanese team forced adult skin cells to express Oct3/4, Sox2, Klf4, and c-Myc, while the NIH-supported team forced adult skin cells to express OCT4, SOX2, NANOG, and LIN28.
The genes were all chosen for their known importance in maintaining the so-called “stemness” properties of stem cells. In both reports, the adult skin cells are thus reprogrammed into human iPS cells that demonstrate important characteristics of pluripotency, including the ability to differentiate into cells characteristic of each embryonic germ layer.
The techniques reported by these research teams will enable scientists to generate patient-specific and disease-specific human stem cell lines for laboratory study, and to test potential drugs on human cells in culture.
However, these human iPS cells are not yet suitable for use in transplantation medicine. The current techniques use viruses that could generate tumors or other undesirable mutations in cells derived from iPS cells.
Scientists are now working to accomplish reprogramming in adult human cells without using potentially dangerous viruses.
passage taken from………
http://stemcells.nih.gov/StemCells/Templates/StemCellContentPage.aspx?NRMODE=Published&NRNODEGUID=%7b5C2D6485-9509-481F-B0E0-5F7865F5C69A%7d&NRORIGINALURL=%2fresearch%2fscilit%2fhighlights%2fhighlights2007%2ehtm&NRCACHEHINT=NoModifyGuest#reprogram
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In the same website learn about the human stem cells.
What do you think? Answer below!
Tags: cells, Embryonic, meiosis, mitosis, refer, reprogrammed, Skin, Stem | Posted under Stem Cell Questions & Answers | Comments Off
Last Updated on Wednesday, 4 August 2010 08:24 Written by Administrator Wednesday, 4 August 2010 08:24
Question by Bijan S: What is a recent law concerning stem cells?
I need to find a recent law (federal or state) that was passed concerning stem cells for a report. Does anyone know where I can find this information because I’ve looked in various places and was unable to find a recent law within the last 2 years that was passed.
Best answer:
Answer by SarahM
Michigan just passed a proposition for Stem Cell Research. Proposal 2.
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Tags: cells, concerning, recent, Stem | Posted under Stem Cell Questions & Answers | 1 Comment
Last Updated on Monday, 2 August 2010 03:14 Written by Administrator Monday, 2 August 2010 03:14
Question by nealstewart25: What would happen if stem cells were injected into normal, healthy skin?
I’ve seen articles where stem cells can repair damaged tissues and have regenerative effects and everything, but does anyone know what would happen if the stem cells were injected into normal skin? Would the cells still differentiate and make…extra tissue, or would older cells be replaced by the stem cells, or what?
Best answer:
Answer by blackjack432001
stem cells are what you want them to be. if put into a healthy body, then they take the form of healthy cells and the rest of the day is yours. if placed into a ‘bad’ body, the cells have a good chance of becoming the healthy cells you wish them to be. know what? since research is still research, and a lot of info is still missing – the end result, good or bad, is still unknown. but what’s also known is that the old saying (?): what do you have to lose? if you are possibly dying of something really bad and you have a chance to do something/anything, why not. go for it. you got nothing to lose.
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