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Tag: Blood

Back from the dead
Researchers have been able to achieve substantial recovery of cellular and organismal activity in pigs that had been dead for a full hour [1]. When is it too late? Advances in resuscitation have already moved the boundaries of life and death, making it possible to revive a person several minutes after the heart stops beating....
Blood donation
Scientists have shown that blood donation strongly affects skin aging in mice, probably by lowering the levels of toxic free iron [1]. The good bloodshed Before the dawn of modern medicine, bloodletting was one of the favorite arrows in medieval doctors’ quivers. Of course, it was a savage and unscientific instrument that probably did more...
Heterochronic Parabiosis
A preprint published on bioRxiv, whose authors include well-known biogerontologist Vadim Gladyshev, has shown us many interesting details of the effects that heterochronic parabiosis has on aging mice. An old concept studied in new depth Heterochronic parabiosis is the linking of the circulatory systems of young and aged animals. While the researchers note that this...
Bone Marrow
In a study published in Aging, researchers have found that younger hematopoietic cells can restore older hematopoietic cells through microvesicles, which are facilitators of intercellular communication. Why we Age: Altered Intercellular CommunicationAltered intercellular communication, as described in the Hallmarks of Aging, is the change in signals between cells that can lead to some of the...
DNA Blood Cells
Researchers publishing in Cell Stem Cell have identified a protein that helps hematopoietic stem cells (HSCs) both in ex vivo cultures and in aging tissues. The problem with culturing cells Why we Age: Loss of ProteostasisThe loss of proteostasis is the failure of the protein building machinery of the cell and the accumulation of misfolded...
UCSD Blood Flow Monitor
Researchers from the University of California San Diego have developed a new non-invasive way to measure blood flow using an ultrasound patch [1]. Realtime blood flow monitoring just got easier This new flexible polymer patch sticks to the skin and can monitor the flow of blood in vessels up to 14 centimeters deep into the...