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2013-10-17 11:17:43

The mechanical properties of cells are often an indicator of disease. Cancer cells are typically soft and squishy. When the malaria parasite is inside a red blood cell, for example, the cell is stiffer than normal. Sickle cells also vary in stiffness. Research into the stiffness of diseased cells is lacking, in part due to limits in technology. Researchers have developed a new technology to sort human cells according to their stiffness, which might one day help doctors identify certain...

2013-10-11 10:56:19

New research has shown that the stomach naturally produces more stem cells than previously realized, likely for repair of injuries from infections, digestive fluids and the foods we eat. Stem cells can make multiple kinds of specialized cells, and scientists have been working for years to use that ability to repair injuries throughout the body. But causing specialized adult cells to revert to stem cells and work on repairs has been challenging. Scientists from Washington University...

2013-10-11 10:54:41

Human skin must cope with UV radiation from the sun and other harmful environmental factors that fluctuate in a circadian manner. A study published by Cell Press on October 10th in the journal Cell Stem Cell has revealed that human skin stem cells deal with these cyclical threats by carrying out different functions depending on the time of day. By activating genes involved in UV protection during the day, these cells protect themselves against radiation-induced DNA damage. The findings could...

2013-10-09 11:15:08

2 studies suggest infusion of these cells may contribute to organ regeneration in the future Damaged or diseased organs may someday be healed with an injection of blood vessel cells, eliminating the need for donated organs and transplants, according to scientists at Weill Cornell Medical College. In studies appearing in recent issues of Stem Cell Journal and Developmental Cell, the researchers show that endothelial cells -- the cells that make up the structure of blood vessels -- are...

2013-10-07 12:14:14

Biologists of the University of Zurich have developed a method to visualize the activity of genes in single cells. The method is so efficient that, for the first time, a thousand genes can be studied in parallel in ten thousand single human cells. Applications lie in fields of basic research and medical diagnostics. The new method shows that the activity of genes, and the spatial organization of the resulting transcript molecules, strongly vary between single cells. Whenever cells activate...

2013-10-07 09:23:37

A group of Brigham and Women’s Hospital, and Harvard Stem Cell Institute researchers, and collaborators at MIT and Massachusetts General Hospital have found a way to use stem cells as drug delivery vehicles. The researchers inserted modified strands of messenger RNA into connective tissue stem cells—called mesenchymal stem cells—which stimulated the cells to produce adhesive surface proteins and secrete interleukin-10, an anti-inflammatory molecule. When injected into the bloodstream...


Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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