Researchers from Pennsylvania State University studied the effect of UVR exposure with sunscreen or sweat on nitric oxide's ability to promote vasodilation of skin blood vessels
. Healthy young adults with light-to-medium skin tone were exposed to UVR on one arm while the other arm served as a control and did not receive UVR treatment.
Scientists at The University of British Columbia have managed to grow "perfect" human blood vessels
in the lab for the first time, raising the possibility of new treatments for vascular problems.
The researchers exposed their blood vessel
organoids to a 'diabetic' environment in a petri dish.
In the brains of healthy adults, the walls of blood vessels
are so tight that few to no foreign objects reach the organ.
The study potentially represents a turning point in cell-based therapies for blood vessel
In human oral cancer, for example, they found malignant pericytes were abnormally thick and abundant in the blood vessel
An IVUS image is an image that shows the cross section of a blood vessel
by inserting a microminiaturized ultrasonic instrument into the blood vessel
"We still have a lot more research to do before we can build complete new blood vessel
networks in the lab," Gerecht said, "but our progress in controlling the fate of these stem cells appears to be a big step in the right direction."
Evidence of the role of blood vessels
in Alzheimer's was found in laboratory mice with their own version of the disease.
Researcher Matthew Frontini, from the University of Western Ontario, said yesterday: "FGF9 seemed to 'awaken' the supporting cells and stimulated their wrapping around the otherwise fragile blood vessel
Tackling uncontrolled blood vessel
growth has become a key anti-cancer strategy of drug companies.
When the cornea is clouded by injury, infection, or abnormal blood vessel
growth, vision severely is impaired, if not destroyed.