Tuesday, September 28

células madre

células madre, cerebro, Tendencias

These mini lab brains developed eyes | Digital Trends Spanish

In order to better study and understand the functioning and development of the brain, a group of scientists has created an organ similar to a brain that, spontaneously, developed something similar to eyes that can even react to light. These organs, or better called organoids, are created through the use of pluripotent stem cells. And in the case of the study specimens, the organoid developed two symmetrical "optical cups" and from the center of the brain. For scientists, the existence of this kind of eyes serves to highlight the ability of these brain-like organoids to "generate primitive sensory structures, sensitive to light and whose cell types are similar to those found in the human body" . The eyes of this small brain developed in a time similar to that of the human eye, since the...
células madre, Noticias, Salud, sangre

A protein protects the “fountain of youth” of the blood | Digital Trends Spanish

Scientists discovered a key protein that supports the production of healthy blood cells throughout the life cycle, regulating the body's inflammatory response. This is the first study to reveal a protein that plays a crucial role in protecting blood stem cells, which continually produce the blood and immune cells necessary to prevent premature aging. The discovery shows that the protein, known as YTHDF2, protects these stem cells from damage when the body is fighting an infection and allows them to continue to function properly. Scientists have long been puzzled about how these cells, known as hematopoietic stem cells, protect themselves from exhaustion while increasing the production of immune cells to fight infection. Previous studies had determined the protein YTHDF2 plays an im...
bioingeniería, células madre, corazón, Noticias, Salud, Universidad Estatal de Michigan

From stem cells, scientists created mini-heart | Digital Trends Spanish

Heart disease is the leading cause of death in much of Latin America, Europe, and the United States. Hence, the authorities invest in research such as that carried out by Michigan State University (MSU), whose scientists created the first functional human mini-heart model from stem cells. The small organ has all types of primary cardiac cells and a structure of chambers and vascular tissue. "These mini-hearts are incredibly powerful models for studying all types of heart disorders with a degree of precision never seen before," said Aitor Aguirre, lead author of the study and assistant professor of biomedical engineering at the Institute of Quantitative Health Sciences and Engineering. MSU. The study is called "Generation of Cardiac Organoids Modeling Early Human Heart Development U...