WHAT IS A STEM CELL?
The human body has many types of cells needed for daily health. These cells help the body to function normally, including heartbeat, think of the brain, the kidneys clean the blood, and changes in skin cells ... New special function of stem cells is created out all the different cell types in the body. Stem cells are the supplier of new cells. When stem cells divide, it may make more stem cells, or make the other cell types. For example, stem cells of the skin can produce more stem cells of the skin, or create cells with special functions, such as help for the pigmentation of the skin.
Why are stem cells important health?
When we are wounded or sick, the body's cells we will be injured or killed. As such, stem cells begin operation. The work consists of stem cells repair injured cells and new cells to replace the dead cells into place. This is the way that stem cells keep the body healthy and prevent abnormal degeneration.
Stem cells have the kind?
Stem cells have a lot of different kinds. Scientists think that each part of the body has a private stem cell types. For example, blood is made from blood stem cells (hematopoietic cells). However, stem cells have show interest in the first seconds of development of man, and when the scientists transplanted cells produce, cells are called "embryonic stem cells". The reason scientists are excited about embryonic stem cells because of congenital, embryonic stem cells generate all of the organs of the human body during development. Unlike stem cells of adults, scientists can cause embryonic stem cells to become almost all other cell types in the human body. For example, while the blood-forming cells can only make up blood, embryonic stem cells can make the blood, bones, skin, brain, etc ... In addition, embryonic stem cells have been programmed to create tissue function and human bodies, while adult stem cells do not have. Thus means that embryonic stem cells have more natural ability to repair diseased organs. Embryonic stem cells are made from surplus embryos from treatment programs fertility, and this ear embryos just a few days old and were cultured on a plate created in the laboratory. If not in use, this natural embryos will be discarded.
Cells induced pluripotent stem (iPS) is what?
These scientists and doctors are excited about the new type of stem cells called stem cells power inductors (iPS). The reason that they are excited because iPS cells have nearly all the functions of embryonic stem cells, but does not have to be created from embryos. So there would be no ethical problems with iPS cells. In addition, iPS cells made from the patient's normal cells and will not refuse their body, a very important issue when transplanting stem cells into the patient.
The future of stem cells and the changes in the way medical treatment using stem cells.
because of the nature of stem cells is to replace diseased or dead cells, the scientists have found a way to use stem cells in the treatment of patients with different types of disease. The notion here is that when patients are given stem cells, or cells from stem cells make new, repair capacity of stem cells that can make the patient healthy again. For example, if the patient is having a heart attack, the goal when treating patients with stem cells are stem cells will be transplanted to repair the damage of the heart. The stem cells that the body has the natural ability to repair only limited. When it comes to heart disease, cardiac stem cells can not repair the damage, but millions of stem cells will be transplanted into more effective. Therefore, when the stem cells are transplanted into patients, we increase the likelihood of your body repairs than usual. Some of the difficulties with stem cell therapy include safety (stem cells that can cause tumor), and the body was rejected. Despite this, stem cell medicine will change, and can in only a decade or two, we will know someone, or maybe even yourself, with stem cell transplantation. Stem cells hold promise cure many different diseases, including cancer, heart disease, Parkinson's disease, multiple sclerosis, stroke, Huntington's disease, spinal cord injuries ...
Now there are treatments using stem cells yet original, and why doctors recommend that we should be careful when hesitation these methods?
now only a few stem cell transplantation safety and effectiveness that has been proven by scientists. One example is a bone marrow transplant. Yet there is still a lot of treatments using stem cells has not been proven by science, but still be promoted and used around the world. These treatments have a lot of attention of the media, when cinema celebrities and famous sports people use. Doctors and scientists recommend that we should be careful when using these methods because they do not know if these methods to be effective or safe or not. In the past, patients have died from these methods. Although
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