Even during the Oracle at Delphi's time, it was widely known that the Oracle's visions had a practical cause. Gas seeped out of the cracks in the cave where she sat, causing her to talk nonsense. This nonsense would then be interpreted by priests around her. Some of the predictions wer...
How Blood Works By: Carl Bianco, M.D. A close-up of blood cells Sebastian Kaulitzki/iStockphoto.com Do you ever wonder what makes up blood? Unless you need to have blood drawn, donate it or have to stop its flow after an injury, you probably don't think much about it. But bloo...
How Blood Works By: Carl Bianco, M.D. A close-up of blood cells Sebastian Kaulitzki/iStockphoto.com Do you ever wonder what makes up blood? Unless you need to have blood drawn, donate it or have to stop its flow after an injury, you probably don't think much about it. But bloo...
As children, most of our bones produce blood. As we age this gradually diminishes to just the bones of the spine (vertebrae), breastbone (sternum), ribs, pelvis and small parts of the upper arm and leg. Bone marrow that actively produces blood cells is called red marrow, and bone ...
It is difficult, however, to produce a pulsatile flow with an impeller pump, since blood damage will occur when a pulsatile flow is produced. Further investigation has revealed that the main factor for blood damage is turbulence shear, which tears the membranes of red blood cells, resulting in...
Their finding supports the hypothesis that the presence of GATA1 proteins in earlyblood stem cellshelps prime them for differentiation into red blood cells. Without enough ribosomes to produce enough GATA1 proteins, these early cells simply never receive the signal to become red blood cells. ...
How do white blood cells attack germs?Immune System:It's amazing to think that our bodies have their own armor of defense. When the human body is exposed to certain threats like a cold, germs or even pollen, our body puts up a great fight. Anything that is not supposed to be in our...
It is conceived that by the time these studies will be completed, technical barriers to mass cell production will have been eliminated making transfusion with ex-vivo generated red cells a reality. Introduction Blood transfusion is in certain conditions an irreplaceable, life-saving and overall safe...
EPO stimulates the bone marrow stem cells to make red blood cells, which increase the delivery of oxygen to the kidney. Endurance athletes, such as those who compete in marathons, cycling or cross-country skiing, can use EPO to increase their oxygen supply by as much as 7 to 10 percent....
Yale researchers have discovered how megakaryocytes — giant blood cells that produce wound-healing platelets — manage to grow 10 to 15 times larger than other blood cells. The findings, to be published March 13 in the journalDevelopmental Cell, also hint at how a malfunction in this process ...