Stem cells, under the right conditions, have the ability to differentiate into many specialised cell types. They can give rise to cardiomyocytes, nerve cells, adipocytes and osteocytes. The most researched stem cell is the adult stem cell, but these cells, except in the treatment of leukaemia, do not often lead to true transdifferentation when used clinically This section offers a summary regarding the background of the topic concerning how Stem Cell Research and treatment works and its purpose together with application in the real world. The stem cells are usually capable of developing into different cell types both in Feb 02, · These cells were termed as ‘stem cells”.2 Stem cells generate only the differentiated lineages of the tissues they reside in, therefore the terms ‘multipotent’ or ‘unipotent’.2 Research on stem cells is the focus of public attention for quite some time now; and novel insights and development into cellular therapy have emerged. However, it is not without any ethical blogger.comted Reading Time: 9 mins
Stem Cell Essays: Examples, Topics, Titles, & Outlines
We use cookies to enhance our stem cells essay for you. Proceed if you agree to this policy or learn more about it, stem cells essay. Type of stem cells essay Essay.
Topic: AbortionSciencestem cells essay, Adult stem cells essay, MedicineHumanHealthEthicsPregnancy. The human body consists of tissues and organs that contain over different cell types. It was argued long ago, that in some tissues, the differentiated cells have a shorter life span and that they are not able to self -renew.
However, stem cells essay, it is not without any ethical implications, stem cells essay. It is an ongoing discussion and most of the controversy is surrounding the area of embryo destruction.
Stem cell research has come a long way now and offered great promise for understanding basic mechanisms of human development. There are stem cells essay phases of stem cell research and at every step ethical issues arise. In the first phase of donation of biological material, the ethical issue is obtaining informed and voluntary consent. On researching with human embryonic stem cells, the ethical issues are of destruction of embryos and creation of embryos specifically for research purpose.
If stem cell lines are derived at different institutions, there is an issue of conflicting legal and ethical standards. If there is a participation in stem cells clinical trials, there are risks and benefits stem cells essay experimental intervention. This topic always crops up whenever there is a talk on abortion.
They believe that, stem cells essay, in moral sense, an embryo becomes a person at a later stage of development than fertilization. There is also a section of society which believes that embryo is just a bunch of cells that can be used for research purposes without any inhibition or restriction. How to dispose the frozen embryos is often a question to them.
At present, new ethical issues are beginning to emerge around deriving and using other human embryonic stem cell — like stem cells, which are cells with a capacity to differentiate into all types of human tissue. Embryonic stem cells.
The iPS cell technique pioneered in in Japan10 showed that human iPS cells can be created, which would behave stem cells essay the same way as human embryonic stem cells.
To carry out comparisons on the two, scientists need to expand their knowledge more on human embryonic cells too. So far, stem cell researchers have stem cells essay in producing a few disease specific human embryonic stem cell lines using those embryos that were unwanted in the fertility clinic and that had tested positive for serious genetic diseases like fragile X syndrome and cystic fibrosis.
Therefore, researchers had been using the iPS cell technique to create disease —specific stem cell line. Such techniques are classified into two types: pluripotency induced by factor-mediated nuclear programming and somatic cell nuclear transfer SCNTbetter known as cloning.
Using lentiviral RNA interference before SCNT, researchers reported inactivation of the Cdx2 gene in murine fibroblasts. This technique resulted in a blastocyte that produced only cells of the inner cell mass. Clin Transl Sci. These cells were studied and found to be pluripotent and functionally similar to embryonic stem cells. This work was based on an old research that showed Cdx2 essential for formation of trophoblast that gives rise to extra embryonic tissues, stem cells essay.
One big disadvantage of stem cells essay stem cell platforms is the risk of immune rejection. In the first human embryonic cell phase 1 clinical trial, patients undergoing allogenic cell transplants had to receive immunosuppressive therapy for four months and were monitored for 15 years for evaluation of rejection. Stem Cell Rev. Expert Rev Clin Immunol. About GRNOPC1 [clinical program]. Geron Web site.
Accessed May 2, Resources for iPS cells can be unlimited because they require only a tissue biopsy for derivation making it easy for anyone to donatebut human embryonic stem cells have a severe limitation in resource capacity because they must be derived from embryos discarded after IVF. These are then transferred to the womb; and if implantation and further gestation is successful, identical multiples are born. Stem Cells International.
Article ID7 pages doi Mu and F. If it is not successful, stem cells essay, the procedure is repeated. This provides an infertile couple an increased chance of successful reproduction. Therefore, it is possible to create identical multiples that are not born at the same time. One advantage in this technique is that the one child can serve as a bone marrow or blood donor for the other sibling, anytime if there is a need, since they are genetically identical.
Thus, stem cells essay, the existence of cloned person is mutually beneficial. However, this too holds some concerns. There is as debate and controversy that artificially dividing the embryo constitutes an immoral manipulation of the embryo. As much as possible, a unique embryo should be allowed to develop without interference. Here is where the field of bioethics was applied in association with life science and survival.
An ongoing debate according to Zacharias et al is if we have sufficient human embryonic cell lines to innovate better techniques or whether it is essential to continue deriving more lines by embryonic destruction?
Nelson Timothy, Mueller Paul, Hook Christopher. Since past two years, the availability of human embryonic cell lines has been increasing dramatically and has almost doubled now, compared to previous 15 years. There are still many more cell lines under review by the NIH.
Whatever the prohibitions and agreements are, it should be in favor or stem cells essay beneficial to human beings that are the main beneficiaries. If there is a balance, scientists are able to work more efficiently on a technology that seems to have a great potential to solve health problems in different stages of life.
References: Arias, AM, stem cells essay. Aalto-Setälä K, stem cells essay, Conklin B, Lo B.
Boyd AS, Fairchild PJ. Eiges R, et al. Geron Corporation. Guenin LM. Hipp J, Atala A. Hyun Insoo. Illmensee, Karl et al. Lajtha, LG. Lo Bernard, Parham Lindsay. Lyerly AD, Faden RR. Meissner A, Jaenisch R. Monroe, KR; Miller, RB; Tobis, J eds.
McCormick, Richard. Nelson TJ, Behfar A, Yamada S, Martinez-Fernandez A, Terzic A. Park IH, et al. Pickering SJ, et al. Ramos-Zuniga Rodrigo, Gonzalez —Perez Oscar, Macais —Ornelas Ana, stem cells essay, Capilla-Gonzalez Vivian, Quinones-Hinojosa Alfredo. Strumpf D, Mao CA, Yamanaka Y, et al. Takahashi K, Yamanaka S.
Takahashi K, et al. Wolf S, et al. Wilmut I, stem cells essay, Schnieke AE, McWhir J, Kind AJ, Campbell KH. Yu J, et al. Yamanaka S, Blau HM. Zacharias David. We accept sample papers from students via the submission form. If this essay stem cells essay to you and you no longer want us to display it, you can put a claim on it and we will remove it.
Just fill out the removal request form with all necessary details, such as page location and some verification of you being a true owner.
Please note that we cannot guarantee that unsubstantiated claims will be satisfied. Note: this sample is kindly provided by a student like you, stem cells essay, use it only as a guidance. ID Subscribe to WowEssays Premium and get access to over 1 MILLION high-quality downloadable samples. GET ACCESS NOW. Password recovery email has been sent to email email. HIRE WRITER PREMIUM DATABASE Sign in. HIRE WRITER PREMIUM DATABASE. Type of Paper. Essay Topics. Educational Tools.
Who We Are Contact Us Our Writers Honor Code WowEssays Reviews Blog Our Services.
What are stem cells? How can they be used for medical benefit?
, time: 6:15Stem Cell Essay | Cram
Oct 14, · Stem Cell Research Genetic Engineering. Words: Length: 5 Pages Document Type: Term Paper Paper #: Read Full Paper. Unlike any specific adult cell, embryonic stem cells are undifferentiated cells that have the ability to form any adult cell, and can proliferate indefinitely in culture (Embryonic pp) Stem cells, under the right conditions, have the ability to differentiate into many specialised cell types. They can give rise to cardiomyocytes, nerve cells, adipocytes and osteocytes. The most researched stem cell is the adult stem cell, but these cells, except in the treatment of leukaemia, do not often lead to true transdifferentation when used clinically Apr 25, · Stem cells are undifferentiated cells within the body that have the capability to specialize into any tissue. They are most commonly found in cord blood, bone marrow, organ donations, placenta, and embryos. Stem cells are seen by some as a new miracle treatment, encouraging many countries to invest in their research. The transfer of information
No comments:
Post a Comment