Scientists at the University of Sydney have made a significant scientific discovery that opens an entirely new path in the treatment of cardiovascular diseases. According to the discovery, heart muscle cells possess the ability to recover following a heart attack.
Cardiovascular diseases are one of the leading causes of mortality worldwide. In Australia, for example, 144,000 people suffer from heart failure every year. A study published in the journal Circulation Research proves that the long-held belief regarding the irreversible damage of heart tissue requires a complete revision.
What did the study find?
The prevailing view was that heart tissue damaged by an infarct was incapable of recovery, resulting in a permanent decline in the organ’s function. However, the new study from the University of Sydney determined that, despite the formation of scar tissue, the human heart still manages to generate new muscle cells. This marks the first time scientists have observed the process of cell division, or mitosis, within the human heart muscle.
This discovery was made possible through a unique methodology for studying patient tissues. Thanks to samples collected during bypass surgeries, scientists analyzed both the damaged and healthy parts of the heart in real-time. This approach allows researchers to obtain more accurate data and develop therapeutic agents that will further enhance the heart’s natural regenerative capacity.
What is the primary goal for scientists?
Although the heart’s natural regenerative ability is currently insufficient to fully prevent the severe consequences of a heart attack, scientists remain optimistic.
Currently, their main objective is to develop therapies that will bolster the organ’s natural capabilities and promote the intensive generation of new cells. Scientists plan to utilize specific proteins responsible for heart regeneration in mice and implement this mechanism in human treatment. This method could make it possible to effectively eliminate heart failure—a feat that is currently only achievable through organ transplantation
