Friday, August 22, 2014
A lot of work is going into stem cells research. Anything we can learn about them is important for future human transplants. There have been some claims that have been proved wrong. However, we are moving forward in understanding how organs can be created from them.
A significant breakthrough has been made in Australia while investigating zebrafish. Scientists have found out how hematopoietic stem cells (HSC) important in bone marrow and blood are made. The stem cells replenish immune cells in the blood.
At present hematopoietic stem cells are used to treat leukemia and myeloma. It will probably be possible to treat other cancers in blood vessels, muscle and bone. Furthermore, diabetes, spinal problems and degenerative disorders cold also be treated.
The discovery is important. "Buddy" cells were observed while the hematopoietic stem cell were being created. Ironically, the scientists were investigating muscle development when they noticed the "helper" cell. Other scientist will take this further.
Science by Ty Buchanan
Tuesday, August 19, 2014
"Not usual cat food, but...."
Funny Animal Pictures by Ty Buchanan
Scientists put all the facts together about a subject then reach a decision on what is truth. This decision is agreed upon by the majority of specialists in the area and becomes fact that is put forward in books and education. Unfortunately, time sometimes proves these "facts" to be wrong.
Australian researchers using the latest findings have changed their view on the age of Egyptian mummies. The artifacts are now believed to be 1,500 years older than was put forward in the scientific literature.
Mummification began as far back as 3,500BC. The original claim of 2,200BC was wrong. Even in prehistoric tribal times Egyptians embalmed their dead. Evidence from objects on show in Bolton Museum, England, proved the thesis. They were analysed and the shock discovery was made. Chemicals from an old embalming process were identified.
This preservation of mainly the hands and heads of deceased people with high status began before written language was developed. Of course, this belief about language could also be proved wrong in the future.
Science by Ty Buchanan
Sunday, August 17, 2014
"I told you not to interrupt."
Funny Animal Photos by Ty Buchanan