Scientists 3D Print Human Heart Muscles

 A human embryonic stem cell line derived at Stanford
University. (REUTERS/Julie Baker/Stanford University School of
Medicine/California Institute for Regenerative Medicine/Handout)
A human embryonic stem cell line derived at Stanford University. (REUTERS/Julie Baker/Stanford University School of Medicine/California Institute for Regenerative Medicine/Handout)
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Scientists 3D Print Human Heart Muscles

 A human embryonic stem cell line derived at Stanford
University. (REUTERS/Julie Baker/Stanford University School of
Medicine/California Institute for Regenerative Medicine/Handout)
A human embryonic stem cell line derived at Stanford University. (REUTERS/Julie Baker/Stanford University School of Medicine/California Institute for Regenerative Medicine/Handout)

Heart diseases are the leading cause of death in the United States killing more than 600,000 people a year. A team of researchers at the University of Minnesota has 3D printed a functioning human heart pump in the lab, which could help save the lives of thousands of patients.

According to the Science Daily website, the researchers used a type of stem cells with the potential to develop into any type of cell in the body, in addition to a mix of proteins, and the printer's ink.

The heart muscle model is about 1.5 centimeters long and was specifically designed to fit into the abdominal cavity of a mouse for further study, the German News Agency reported.

The team said the new muscle can be used to study the functions of the heart, and the problems that might affect it.

Brenda Ogle from the Department of Biomedical Engineering in the University of Minnesota College, said this is a critical advance in heart research because this new study shows how we were able to 3D print heart muscle cells in a way that the cells could organize and work together.

"We now have a model to track and trace what is happening at the cell and molecular level. We can introduce disease and damage into the model and then study the effects of medicines and other therapeutics," she explained.



US-Russian Crew of 3 Arrives at International Space Station

In this photo taken from video released by Roscosmos space corporation, a Russian Soyuz rocket carrying a Soyuz MS-27 spacecraft with NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, lifts off for the International Space Station from the Russian leased Baikonur cosmodrome, Kazakhstan, Tuesday, April 8, 2025. (Roscosmos space corporation, via AP)
In this photo taken from video released by Roscosmos space corporation, a Russian Soyuz rocket carrying a Soyuz MS-27 spacecraft with NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, lifts off for the International Space Station from the Russian leased Baikonur cosmodrome, Kazakhstan, Tuesday, April 8, 2025. (Roscosmos space corporation, via AP)
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US-Russian Crew of 3 Arrives at International Space Station

In this photo taken from video released by Roscosmos space corporation, a Russian Soyuz rocket carrying a Soyuz MS-27 spacecraft with NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, lifts off for the International Space Station from the Russian leased Baikonur cosmodrome, Kazakhstan, Tuesday, April 8, 2025. (Roscosmos space corporation, via AP)
In this photo taken from video released by Roscosmos space corporation, a Russian Soyuz rocket carrying a Soyuz MS-27 spacecraft with NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, lifts off for the International Space Station from the Russian leased Baikonur cosmodrome, Kazakhstan, Tuesday, April 8, 2025. (Roscosmos space corporation, via AP)

NASA astronaut Jonny Kim and two Russian crewmates arrived at the International Space Station on Tuesday on board a Russian spacecraft.
A Soyuz booster rocket lifted off as scheduled from the Russia-leased Baikonur launch facility in Kazakhstan to put the Soyuz MS-27 carrying the trio in orbit. They docked at the station just over three hours later.
Kim and Russia’s Sergey Ryzhikov and Alexey Zubritsky are scheduled to spend about eight months at the space outpost, The Associated Press reported.
NASA said Kim will conduct scientific investigations and technology demonstrations to help prepare the crew for future space missions and provide benefits to people on Earth. A native of Los Angeles, Kim is a US Navy lieutenant commander and dual-designated naval aviator and flight surgeon.
Kim, Ryzhikov and Zubritsky are joining NASA astronauts Don Pettit, Anne McClain and Nichole Ayers, Japan Aerospace Exploration Agency’s astronaut Takuya Onishi and Russian cosmonauts Alexey Ovchinin, Ivan Vagner and Kirill Peskov on the space outpost.