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Stem Cells in Urology?

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There is hot debate about stem cell use, their ethics and potential for curing diseases. Although promising, the application to disease states should not be overblown. We may all feel bad for Christopher Reeve, but injecting him with stem cells is simply not going to make him miraculously walk. Some cold water needs to be thrown on the loudest proponents, since common sense dictates that all advancements in science don’t always happen out of sheer will and hope. Like all medical experiments, we ask the question: will it work and is it safe, and this applies equally to stem cells.

Stem cells are regarded as the ideal resource for tissue regeneration, outside of formal organ transplantation. Stem cells have the following properties: they self-renew, they can form any cell type in the body and they can multiply into clonal populations.

There are many sources of stem cells:

Adult stem cells exist in adult tissues throughout the body, such as bone marrow, brain, muscle and GI tract. Research with these cells has progressed slowly because they are difficult to maintain in culture. Their advantage is that they will not provoke an immune response such as rejection.

Embryonic stem cells are obtained from the inner cells of the blastocyst, an early stage in human embryonic development formed five days after fertilization of the egg by the sperm. The ethical and political controversy dates back to 1998, when human embryonic stem cells were first isolated from donated human embryos. Although they can differentiate into any cell type (except placenta), their growth is not well-controlled, and can provoke an immune reaction.

Amniotic fluid and placental stem cells can be obtained from amniotic fluid, can self-renew and can differentiate into all types of cells. They are less-studied but have properties between adult and embryonic stem cells, and importantly, unlike embryonic stem cells, they do not form teratomas, a type of tumor.

Stem cells for urinary incontinence is a potentially exciting application. The external sphincter can become weak and allow urine to leak past it with coughing, sneezing, laughing and exercise.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.

Urinary Incontinence

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