• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

stell cells

Extracts from this document...


Shanshan wang 5/27/06 cell bio Stem Cell Stem cells are one of the most fascinating areas in biology today. It brings us incredible possibilities of new medical treatment. Because stem cell is a very special type of cell which has the ability to develop into any different types of cell that could make up the body's tissues and organs. They could produce more and more stem cells and other types of cells for people's need. Stem cells are so useful that they illuminated many patients' hope. Now, I am going to illustrate how powerful they are. Stem cells are different from any other kinds of cells in our body because they have the ability to divide to infinite period. Unlike muscle cells and blood cells which could not replicate themselves, stem cells are able to duplicate many times and they would last for a long time. Another property that made stem cells special is they could become cells with special functions such as the repair of the skin and to make up the tissues in lung and other organs because they are unspecialized. There are two types of stem cells. One kind is adult stem cells. Another one is embryonic stem cells. ...read more.


Comparing to adult stem cells, embryonic stem cells from a donor introduced into a patient could cause transplant rejection. Nowdays, scientist conclude that embryonic stem cells have much more potential than adult stem cells because they are totipotent. Nowdays, the use of stem cells in medical field is still the most advancing technology around the world. However, after hundred years of developing, it is clear now that these cells can be used to treat and possibly cure, a wide variety of diseases. Stem cells therapy brought a new medical revolution. Normally, if some organs in our body is out of function. Doctor transplant a new organ into the body, but sometimes this method could lead to a deadly consequences because of the immune rejection. Stem cell therapy, on the other hand, attempts to treat the disease by introducing whole human cells into the body to retore the patient's health. Many researches had been done on stem cell field. Scientists hope to use stem cell to treat lots of incureble diseases. As we know, stem cells can change into many types of cells, heart, nerve ,muscle, skin, etc. Because of this capacity, stem cells could be used into many types of diseases. Perhaps the best-known stem cell therapy to date is the bone marrow transplant, which is used to treat leukemia, a cancer of the blood cells. ...read more.


Contrarily, medical researchers argued that the medical potential of stem cells worth to cost the destruction of the human embryos. The most recent issue in stem cell research has to do with President Bush. On August 9, 2001 who refused to allow research on any cell line created in the future so as to prevent the federal government from acting in a way that encourages the destruction of human embryo. The debate involves stem cells still varies from country to country nowdays. Although many people oppose stem cell research, I believe its benefits outweigh its costs. Many people argued that stem cell research is immoral because of the destruction of the embryo cells. However, when we look at the extraordinary benefit that stem cell could bring us, it definitely worth some cost. In the future, stem cells hold the most promising method to cure many diseases. A lot of tests and experiments are needed to prove that stem cells are perfectly safe for patients because the technology about stem cells now still remain in the first phase. Hopefully, the destruction of embryo cells could be solved by creating embryos in the future. The benefit of stem cell research is innumerable, if those problems could be solve, stem cell technology will bring many more advantages and soon it will bring us another revolution in medical field. Bibiography http://news.bbc.co.uk/1/hi/health/2849667.stm http://en.wikipedia.org/wiki/Stem_cell http://en.wikipedia.org/wiki/Adult_stem_cells http://stemcells.nih.gov/info/health.asp http://www.time.com/time/2001/stemcells/ stem cell research, written by joseph panno. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Molecules & Cells section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Molecules & Cells essays

  1. Epithelial tissues

    cuboidal cell, lumen of kidney tubule, the basement membrane for the epithelial cell and its capillarys These capillaries physically link the muscle with the cardiovascular system. Above is another image of a simple cuboidal epithelial tissue but this time its an image of the simple cuboidal cells taken from the medulla.

  2. measuring lung capacity

    186 3333 Nikita 170 2733 Adnan 208 4780 Chanka 200 4200 Mahdi 206 4600 Jancy 180 3200 Height(cm) Weight(kg) BSA(m2) VC Janice 157 40 1.31 2620 Janki 152 49 1.44 2880 Subangy 152 39 1.28 2560 Andrew 167 78 1.92 4800 Hemal 168 55 1.60 4000 Nikita 153 41 1.31

  1. The Origin of the Mitochondrion.

    synchronously with, though independent from, cell division so that there can be a sufficient number of them to be passed onto daughter cells (Gray et al. 1999). A second method for passing mitochondria to other generations is by packaging them in sperm cells, seeds, spores, and other reproductive cells (Margulis 1978).

  2. The Science of Stem Cells

    However, because adult cells are already specialized, their potential to regenerate damaged tissue is very limited: skin cells will only become skin and cartilage cells will only become cartilage. Adults do not have stem cells in many vital organs, so when those tissues are damaged, scar tissue develops.

  1. Defence against Disease.

    Induced active immunity * Vaccines which contain dead or treated living micro organisms are used to activate the immune system to produce antibodies against specific disease-causing organisms without actually causing the disease. * When a vaccine is injected into a person the immune system shows a primary antibody response.

  2. Snow Blindness

    * For some, the growth remains dormant; * In other cases it grows over the central cornea and affects the vision. * As the pterygium develops, it may alter the shape of the cornea, causing astigmatism. * If the pterygium invades the central cornea, it is removed surgically.

  1. Free essay

    Can stem cell research provide a cure for diabetes?

    is inserted underneath the skin to connect the pump to the bloodstream. "The pump is not automatic, but is programmed to deliver insulin constantly, at varying rates which you determine. This means that you no longer have to give yourself injections."

  2. A Baker’s Problem

    delivery tube and collect in the gas burette, during the controlled length of time. The type, concentration and volume of yeast solution. There will be the same number of yeast cells to respire the glucose each time. Also, it will certify that the only factor affecting the results is the

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work