Work has implications for repairing human heart muscle after heart attacks
Experiments on zebrafish provide important clues that could eventually lead to the ability to regenerate damaged human heart muscle, say researchers from the Howard Hughes Medical Institute at Childrens Hospital Boston. Reporting in the Dec. 13 issue of Science, a team led by HHMI investigator Mark T. Keating, MD, senior associate, department of Cardiology, showed for the first time that zebrafish can regenerate heart muscle within two months after a severe injury. The team also identified a possible genetic and molecular model for regeneration in zebrafish that could help direct further research in humans. The findings, while still in an early stage, might someday benefit millions of people who suffer heart attacks or experience other forms of cardiac injury.
The zebrafish is the subject of active study because of its ability to regenerate spinal cord, retina, and fins. This finding points to the study of zebrafish heart regeneration as a means to understand and reduce cardiac injury in humans. When a human heart is injured, it cannot "grow back" the damaged muscle, which is instead replaced by scar tissue. Too much scarring can impair the hearts ability to pump and can lead to life-threatening arrhythmias. Keating and his colleagues believe that zebrafish, unlike humans, have especially vigorous development of new heart-muscle cells, or cardiomyocytes. This proliferation of cells regenerates the heart muscle with little or no scarring.
Elizabeth Andrews | EurekAlert!
When wheels and heads are spinning - DFG research project on motion sickness in automated driving
22.05.2019 | Technische Universität Berlin
A new approach to targeting cancer cells
20.05.2019 | University of California - Riverside
Physicists at the University of Basel are able to show for the first time how a single electron looks in an artificial atom. A newly developed method enables them to show the probability of an electron being present in a space. This allows improved control of electron spins, which could serve as the smallest information unit in a future quantum computer. The experiments were published in Physical Review Letters and the related theory in Physical Review B.
The spin of an electron is a promising candidate for use as the smallest information unit (qubit) of a quantum computer. Controlling and switching this spin or...
Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...
With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.
Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...
'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.
However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...
Working group led by physicist Professor Ulrich Nowak at the University of Konstanz, in collaboration with a team of physicists from Johannes Gutenberg University Mainz, demonstrates how skyrmions can be used for the computer concepts of the future
When it comes to performing a calculation destined to arrive at an exact result, humans are hopelessly inferior to the computer. In other areas, humans are...
29.04.2019 | Event News
17.04.2019 | Event News
15.04.2019 | Event News
23.05.2019 | Materials Sciences
23.05.2019 | Materials Sciences
23.05.2019 | Physics and Astronomy