Cord Blood Stem Cells Information

Difference between normal cells and pluripotent stem cells? What is the difference? I would prefer a link to a site with information rather than an explanation, really, but if you can explain it well, please do.

Can human skin cells be reprogrammed to form pluripotent stem cells?

Pluripotent stem cells produce A.neutrophils B.basophils C.thrombocytes D.lymphocytes E.All above?

Any one figure out how stem cells differentiate yet? Pluripotent stem cells divide and divide all day long. Each daughter cell remains pluripotent (able to become any of the organ systems in the human body.) At some point this mass of identical cells decides to assign each of the cells an organ system. At this point each of the cells differentiates and can no longer become any other type of cell. Instead it goes on to become heart cells or the cells of some other specific organ system. The difficulty is that all the cells are identical, why would they select different paths? Has anyone figured this out yet? How specific is the understanding? I don't want to hear. "It has to do with the cells kinda' talkin' to each. Since cells can talk to each other, they figure it out." The arpnet engineers solved a funtionaly identical problem 30 years ago. If you want to how they solved it link here http://www.satellitemagnet.com/diff I was hoping for an answer like "We have a few ideas about diffusable gradients but No we don't know yet." Or "Yupper, we know which proteins signal the other cells that this one has got the heart tissue or which ever tissue. so no more heart tissue please" I'm gonna take it. We don't got it If you are interested in an engineers point of view http://www.satellitemagnet.com/diff It is a difficult algorithm. But a chemical gradient of some diffusable factor simply won't do at all. To know how this works we can't get confused by what happens later (self regulating genes ....) We have to understand the engineering challenge. How do a clump of cells identify not just to them selves that they have selected something but to all of the others so that another doesn't make the same choice?

Are adult stem cells pluripotent? Are embryonic stem cells?

From where to we obtain human pluripotent cells? Please help me... this questions is to do with stem cells.

embryonic stage where you can find stem cells that are pluripotent?

describe how a pluripotent stem cell becomes a leucocyte?

If ordinary skin can be turned into stem cells why do we need embrionic stem cells? Why give an unborn baby a death sentence if there are better alterNatives? Isn't the ethical choice to explore the alternatives? Alan Boyle, “Skin Cells Made to Mimic Stem Cells,” msnbc.com, November 20, 2007. Back Junying Yu et al., “Induced Pluripotent Stem Cell Lines Derived from Human Somatic Cells,” Sciencexpress, November 20, 2007. Back Kazutoshi Takahashi et al., “Induction of Pluripotent Stem Cells from Adult Human Fibroblasts by Defined Factors,” Cell 131 (2007):1–12. Back

what are diferences between totipotent and pluripotent in stem cell?

Which of the following is not true of adult stem cells? a. They have been found not only in bone marrow, but also in other tissues, including the adult brain. b. Although more difficult to grow than embryonic stem cells, they have been successfully grown in culture and made to differentiate into specialized cells. c. They are differentiated cells that can be induced to dedifferentiate and become totipotent. d. If pluripotent, they are capable of developing into different types of cells under appropriate conditions. e. These relatively unspecialized cells continually reproduce themselves.

Stem cells...? Hi! What makes a stem cell pluripotent? Is it just the fact that it was taken from an already differentiated cell and it cannot be reversed? Is it not possible for a stem cell to produce, say, an oocyte, so that really, it's totipotent? (Because a fertilized egg is the ultimate totipotent cell) Or am I taking this too far... like, is the difference b/w toti- & pluripotency only *relatively* short term? Thanks!

Stem cells and cloning? •Stems cells can be totipotent, pluripotent or multipotent. What do each of these terms mean? With this in mind, why are pluripotent embryonic stem cells used in therapeutic cloning research? •Give two examples (other than treatment of Parkinson’s disease) of how embryonic stem cells could be used to treat disease. •Why is the use of adult stem cells often unsatisfactory for therapeutic cloning? Give an example where adult stem cells have been used to treat/cure a disease. •Give two realistic/sensible (even if you do not believe in reproductive cloning) uses of reproductive cloning. Justify their use.

stem cells vs normal cells? stem cells vs normal cells? ok, so there is a treatment where they inject stem cells into e.g previously defined heart valves (im guessing the stem cells are pluripotent, if not multipotent) and the valve begins to repair itself. what i dont understand is that the existing tissue already has the ability to undergo cell division (unipotent), so.....why do stem cells seem to work better at mending the damaged tissue if they end up differentiating into the exact same cells? p.s use the heart example when answering, its a good starting point lol

Stem cell question (origin)? Pluripotent stem cells - i dont know if they give rise to others, but i know they are in the red bone marrow to give rise to blood cells (myeloid and lymphoid). now the question is, from which connective tissue do pluripotent stem cells develop?

Stem cell research is back in the hands of Congress...Are you happy with your U.S. Senators vote ? S. 5; Stem Cell Research Enhancement Act of 2007 On Passage of the Bill 04/12/2007 Senate Roll Call No. 127 110th Congress, 1st Session Passed: 63-34 (see complete tally) By 63 yeas and 34 nays (Vote No. 127), Senate passed S. 5, to amend the Public Health Service Act to provide for human embryonic stem cell research, and pursuant to the order of March 29, 2007, requiring 60 votes for the passage of this bill, it is passed. On Passage of the Bill 04/12/2007 Senate Roll Call No. 128 110th Congress, 1st Session Passed: 70-28 (see complete tally) By 70 yeas and 28 nays (Vote No. 128), Senate passed S. 30, to intensify research to derive human pluripotent stem cell lines, and pursuant to the order of March 29, 2007, requiring 60 votes for the passage of this bill, it is passed. Roll Call Vote No. 128 Tally (For more information about a Member, highlight the name and click "Go") Yea : 70 Members Lisa Murkowski (R-AK) Ted Stevens (R-AK) Jeff Sessions (R-AL) Richard Shelby (R-AL) Mark Pryor (D-AR) Jon Kyl (R-AZ) John McCain (R-AZ) Wayne Allard (R-CO) Ken Salazar (D-CO) Joseph Biden (D-DE) Thomas Carper (D-DE) Mel Martinez (R-FL) Saxby Chambliss (R-GA) Johnny Isakson (R-GA) Daniel Akaka (D-HI) Charles Grassley (R-IA) Tom Harkin (D-IA) Larry Craig (R-ID) Mike Crapo (R-ID) Richard Lugar (R-IN) Sam Brownback (R-KS) Pat Roberts (R-KS) Jim Bunning (R-KY) Mitch McConnell (R-KY) Mary Landrieu (D-LA) David Vitter (R-LA) Edward Kennedy (D-MA) John Kerry (D-MA) Susan Collins (R-ME) Olympia Snowe (R-ME) Norm Coleman (R-MN) Amy Klobuchar (D-MN) Christopher Bond (R-MO) Claire McCaskill (D-MO) Thad Cochran (R-MS) Trent Lott (R-MS) Richard Burr (R-NC) Elizabeth Dole (R-NC) Kent Conrad (D-ND) Byron Dorgan (D-ND) Chuck Hagel (R-NE) Ben Nelson (D-NE) Judd Gregg (R-NH) John Sununu (R-NH) Pete Domenici (R-NM) John Ensign (R-NV) Sherrod Brown (D-OH) George Voinovich (R-OH) Tom Coburn (R-OK) James Inhofe (R-OK) Gordon Smith (R-OR) Robert Casey (D-PA) Arlen Specter (R-PA) Jack Reed (D-RI) Sheldon Whitehouse (D-RI) Jim DeMint (R-SC) Lindsey Graham (R-SC) John Thune (R-SD) Lamar Alexander (R-TN) Bob Corker (R-TN) John Cornyn (R-TX) Kay Bailey Hutchison (R-TX) Robert Bennett (R-UT) Orrin Hatch (R-UT) John Warner (R-VA) James Webb (D-VA) Patrick Leahy (D-VT) Robert Byrd (D-WV) Michael Enzi (R-WY) Craig Thomas (R-WY) Nay : 28 Members Blanche Lincoln (D-AR) Barbara Boxer (D-CA) Dianne Feinstein (D-CA) Joseph Lieberman (I-CT) Bill Nelson (D-FL) Daniel Inouye (D-HI) Richard Durbin (D-IL) Barack Obama (D-IL) Evan Bayh (D-IN) Benjamin Cardin (D-MD) Barbara Mikulski (D-MD) Carl Levin (D-MI) Debbie Stabenow (D-MI) Max Baucus (D-MT) Jon Tester (D-MT) Frank Lautenberg (D-NJ) Robert Menendez (D-NJ) Jeff Bingaman (D-NM) Harry Reid (D-NV) Hillary Clinton (D-NY) Charles Schumer (D-NY) Ron Wyden (D-OR) Bernard Sanders (I-VT) Maria Cantwell (D-WA) Patty Murray (D-WA) Russ Feingold (D-WI) Herbert Kohl (D-WI) John Rockefeller (D-WV) Not Voting : 2 Members Christopher Dodd (D-CT) Tim Johnson (D-SD)

Why does anyone object to embryonic stem cell research? People are HONESTLY concerned with 150 cells from a blastocyst when one of the greatest opportunities in modern medicine is at our doorstep? There is immense research potential here, folks. Embryonic cells are pluripotent UNLIKE adult stem cells, and that makes embryonic stem cells MUCH more valuable to the research. And whether you like it or not, women ARE going to abort. It's legal and no one can stop that. Why throw a roadblock in the way of immeasurably significant research because you personally don't "like" the way that the cells were LEGALLY obtained??? I don't understand why anyone would object. By the way, when's the last time anyone introduced an initiative or a bill that would prevent fertilization clinics from destroying the "extra" embryos that aren't implanted? Serena, what do you think I'm hoping stem cell research is going to accomplish? It's going to SAVE and PRESERVE life. ONCE AGAIN, you can't do anything to prevent a woman from aborting. You just can't. ONCE AGAIN, what's the problem with using legally obtained tissue for medical research? And I'd love it if we could get embryonic stem cells in a way that everyone can agree on... let's do it! But I don't see opponents jumping up and down to support obtaining embryonic stem cells in ANY way. The Last Ent Wife, when's the last time anyone buried 150 cells? We "stand on the graves", metaphorically speaking of course, of all those who have donated their bodies to science. You want to tell me I'm a horrible person for not feeling bad when we use 150 cells? You do that. It's a blow I'll have to "take for the team", I guess. Ent Wife... Are you trying to tell me that you oppose embryonic stem cell research because you've had a miscarriage? Or are you trying to imply that I think abortion is a great thing and that I throw a party every time an abortion takes place? I'm sorry that happened to you and I'm not a big fan of abortion in the first place... but... I don't know how many times I can say it! It's LEGAL to abort. It's LEGAL to create embryos and then destroy them. This may disgust you. This may ignite a sense of moral outrage in you. BUT... no matter how much it offends you, IT'S LEGAL. And you're willing to prevent what is probably the most significant research of our time, research on LEGALLY OBTAINED TISSUE (call it a baby if you'd like), because you are ANGRY about abortion???

Stem Cell Questions? 1. What is the difference between pluripotent and multipotent stem cells? Which is embryonic and which is adult? 2. Up until now, much of the research involving stem cells has been done in mice. Why are mice commonly used? 3. What is President Bush’s stance on stem cells?

need lots lots of information on emboryanic stem cell? what is emboryanic stem \cell what does is the difference between emboryanic and adult cells what does pluripotent mean what does totipotent mean according to scientist which type of stem cell is more useful where is stem cells found what is embryo what is blastocys what are icm cell? what happens to the embryo once the stem cells are removed what are some possible potential uses for stem cless why are some people opposed to stem cell research where would stem cells for research come from what is intro fertillization what happens to the left over embryos after couple has succesfully had children what are other sources of stemm cell are they as useful as embryonic stem cells what ethical question did president bush have to consider before making his desicion what is the position of the Senator Hatch on stem cell research according to pres bush, how many stem cell lines exist?

have a track record of success in cell-based therapies.”(allaboutpopularissues).? Introduction In our country, at the time we live in where anything seems to be possible with the science that we have you would think that we would have more cures to the diseases that are spread around the world killing millions every year. Such diseases that we have to live through and hope not to catch are diseases like cancer, AIDS, and diabetes. Although many may think that there is currently no cure available to cure these diseases they are wrong. The new age cure that was once time Penicillin, which was thought to treat everything was not as perfect as once thought but today we have something new that is speculated to fix everything all is embryonic stem cells. Throughout history people have seek out ways to avoid death and to continue living. Some examples could be Juan Ponce de León, who was in search for the fountain of youth when traveling to America in the fifteen hundreds. Others are rumored to have been kept frozen before they died so they can find a cure to live. But now Scientist has stumbled upon the cure of all illnesses since the 1950’s of when they first started to notice stem cells. The question many people ask, what are stem cells and how do they work to have such potential also what are the differences in normal stem cells and embryonic stem cells. With stem cell research we can discover new treatment for today diseases although we are unable to due to the high restrictions and low funding our federal government has put on the use of stem cell research. Past The start of the study of stem cells started with the beginning of biology and learning of cells in the 1800’s, then in the early 1900’s it was then learned that some cells had the ability to generate the blood cells. (Explore stem cells). “The history of stem cell research includes work with both animal and human stem cells. Stem cells can be classified into three broad categories, based on their ability to differentiate. Totipotent stem cells are found only in early embryos. Each cell can form a complete organism. Pluripotent stem cells exist in the undifferentiated inner cell mass of the blastocyst and can form any of the over 200 different cell types found in the body. Multipotent stem cells are derived from fetal tissue, cord blood, and adult stem cells. Although their ability to differentiate is more limited than Pluripotent stem cells, they already

Could someone please translate this for me? english to spanish? *Totipotent stem cells *Pluripotent stem cells *Multipotent stem cells *Multipotent stem cells

I am doing stem cell research and I am looking for a ligand that will arrest stem cell differentiation.? I would like to take stemcells from embryonic, cord blood, marrow or peripheral blood source and arrest their development in a pluripotent state (in vitro) for an extended period of time without cryopreservation. I believe that there must be identified receptors linked to pathways of differentiation. I have only been reading about ligands which cause specific differentiation (which I am also very interested in) but I can't find anything useful in arresting the differentiation. Any suggestions or places to look.

What is a.... (has to do with cells)? so what is a totipotent, multipotent, and pluripotent. also what is an example cell type for those? also what is the primary goal of a stem cell research? if u dont no all the answers just give me all the ones u do no! give me as many as u no! thanx!

biology help? •What are embryonic stems cells? •Stems cells can be totipotent, pluripotent or multipotent. What do each of these terms mean? With this in mind, why are pluripotent embryonic stem cells used in therapeutic cloning research? •Give two examples (other than treatment of Parkinson’s disease) of how embryonic stem cells could be used to treat disease. •Why is the use of adult stem cells often unsatisfactory for therapeutic cloning? Give an example where adult stem cells have been used to treat/cure a disease. •What differences exist in the procedures of therapeutic cloning and the method of reproductive cloning? •Give two realistic/sensible uses of reproductive cloning. Justify their use.

Immune System?????????????? A pluripotent haematopoeitic stem cell starts is in the bone marrow. What cells can be produced by this cell?

Liberals...? What exactly is your definition of life? I know that the abortion issue is a bit old, but It is still unresolved. Scientifically, the definition of human life is something with the potential to become a human., Under this definition a fertilized egg is the beginning of human life. Does this not mean that abortion is the killing of a human being? I will accept that abortion is not murder in all situations. Murder is defined as the malicious destruction of human life, but you must agree that human life is still being destroyed. Before the stem-cell research argument comes up: Embryonic stem cells are not necessary to find cures. Ambiotic blood stem cells agree pluripotent. As of now they, have been used to cure people with sickle cell anemia. Adult stem cells are mutipotent. This means that by using a combination of adult and ambiotic stem cells, we could achieve the same results as we would in embryonic stem cells. How can you justify this? Apparently some of you did not listen to me. Ambriotic and Ambiotic Stem cells are pluripotent. (IT's back to 7th grade biology everyone! you should be able to understand that.) The same things that can be accomplished with embryonic stem cell, can be accomplished with the above, and multipotent adult stem cells. To save one palsy patient, it take 6 fetuses. One life or 6, which is the better choice? truthbetold: You obviously don't understand how evolution works. I happen to be an atheist who believes in evolution. The ape does not have the potential to become human life, that apes line may continue to mutate into a human-like form. This does not give that ape the potential to become a human. That ape will never become a different species. Sperm does not have the potential to become human until after the egg has been fertilized. Human life begins at fertilization. Whoever brought up the sex-ed argument: Don't even start with those lies. I happen to be in high school. Sex ED causes more intercourse than it prevents. Every high school student knows it, every teacher know it, but the liberals still want to teach it.

AP Bio questions:? Q) Adult stem cells which can be harvested from bone marrow Are: a. pluripotent b. totipotent c.differentiated into blood cells only d. lacking in the ability to transform into more than one type of cell Q) Gene Expression is regulated in many steps along the pathway to synthesis of protein, however the key step is: a. transcription b.RNA processing c. transport to cytoplasm d. degradation of RNA e. translation Q) The condensed chromosomes observed in mitosis include all of the following except: a. nuclesomes b. 30-nm fibers c.300-nm fibers d. tooped domain e. ribosomes

stem cells? Some research findings suggest that certain adult stem cells can act as pluripotent cells. With continued rearch, clarity of this matter may solve the ethical issues behind ES isolation and research and provide hope for patients ( any idea on it )?

Stem cells? OK im reading info on stem cells and it says in this one im reading that there are four types of stem cells. Totipotent,Pluripotent,Multipotent,and Progenitor cells. http://www.stemcellresearchfoundation.org/About/FAQ.htm#1 I have ben reading alot about it and I found many articles with mistakes so I want to know if its the right information. 3 or 4 types of stem cells???