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Stem Cells

Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells.

Doctors and scientists are excited about stem cells because they have potential in many different areas of health and medical research. Studying stem cells may help explain how serious conditions such as birth defects and cancer come about. Stem cells may one day be used to make cells and tissues for therapy of many diseases, including Parkinson's disease, Alzheimer's disease, spinal cord injury, heart disease, diabetes and arthritis.

National Institutes of Health

Stem Cell on Wikipedia

; embryonic stem cells. '''Stem cells''' are undifferentiated cell (biology)s which have the unique potential to produce any kind of cell in the body and self-renewal capacity. Medical researchers believe stem cells have the potential to change the face of human disease by being used to repair specific biological tissues or to grow organ (anatomy)s. The study of stem cells began from research at the Ontario Cancer Institute during the 1960s by Canada scientists Ernest A. McCulloch and James E. Till.

Types

There are three types of stem cells: *A single '''totipotent''' stem cell can grow into an entire organism and even produce extra-embryonic tissues. Blastomeres have this property. *pluripotency stem cells cannot grow into a whole organism, but they are able to differentiate into cells derived from any of the three germ layers. *multipotency (also called unipotent) stem cells can only become some types of cells: e.g. blood cells, or bone cells. Stem cells are also categorized according to their source, as either adult or embryonic. :'''Adult stem cells''' are undifferentiated cells found among differentiated cells of a specific tissue and are mostly multipotent cells. They are already being used in treatments for over one hundred diseases and conditions. They are more accurately called ''somatic'' (Greek σωμα sōma = body) stem cells, because they need not come from adults ...   [ Read More ]


External Resources

Smith, Wesley J. - Attorney and author of books on issues such as cloning, stem cells, assisted suicide, euthanasia, and bioethics. Includes links to published essays.

Planer plc. - Manufacturer of controlled-rate freezers for biomedical uses, such as IVF, Stem Cells, Bone Marrow, etc. Also manufactures liquid nitrogen storage vessels and software for controlled rate freezing, thermal cycling, and soldering. In Sunbury, Middlesex, UK.

McGowan Institute for Regenerative Medicine - Tissue engineering, biomaterials, cellular therapeutics, stem cells - University of Pittsburgh research institute.

Bioelectronic interaces, EPFL - Research on implantable electronics, including artificial CMOS retina, endoporator, and in vitro probing of the electrical properties of stem cells.

Tissue Engineering Research and Development Center - Research and education in bone and cartilage tissue engineering, plus cardiac muscle, pancreatic islets, and urinary bladder, and stem cell replacement.

Tissue Regenerating Therapeutics - Stem Cells - Stem cell links and general information.

Aastrom Biosciences, Inc. - Develops proprietary process technologies and devices for cell therapy applications, including stem cell therapies and gene therapy.

Tronolab Website - Collection of protocols, maps and sequences regarding manipulation of lentiviral vectors, siRNA and transgenic animals. Applications in HIV, stem cell and gene therapy research at University of Geneva.

Stem Cells - Publishes papers on hematopoietic stem cell biology and the role of growth factors; translational research in blood and marrow transplantation; ex vivo expansion of PBPC and cord blood; stem cell plasticity; signal transduction in normal and malignant cells; molecular mechanisms of leukemogenesis; endothelial-hematopoietic cell interaction; gene expression and transcription factors. Abstracts from 1983 for free, full text from 1996 for subscribers

I.M.T: Interface Multigrad Technology Ltd. - Supplies devices for cryopreservation or vitrification of sperm, ova, stem cells, and other tissues. In Merhavia, Israel.



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