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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)
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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.

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3 Astronauts Return to Earth after 6 Months on China's Space Station

FILE PHOTO: A Long March-2F rocket carrying the Shenzhou-19 spacecraft sits at the launch pad before taking off from the Jiuquan Satellite Launch Center for a crewed mission to China's Tiangong space station, near Jiuquan, Gansu province, China October 30, 2024. REUTERS/Florence Lo/File Photo/File Photo
FILE PHOTO: A Long March-2F rocket carrying the Shenzhou-19 spacecraft sits at the launch pad before taking off from the Jiuquan Satellite Launch Center for a crewed mission to China's Tiangong space station, near Jiuquan, Gansu province, China October 30, 2024. REUTERS/Florence Lo/File Photo/File Photo
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3 Astronauts Return to Earth after 6 Months on China's Space Station

FILE PHOTO: A Long March-2F rocket carrying the Shenzhou-19 spacecraft sits at the launch pad before taking off from the Jiuquan Satellite Launch Center for a crewed mission to China's Tiangong space station, near Jiuquan, Gansu province, China October 30, 2024. REUTERS/Florence Lo/File Photo/File Photo
FILE PHOTO: A Long March-2F rocket carrying the Shenzhou-19 spacecraft sits at the launch pad before taking off from the Jiuquan Satellite Launch Center for a crewed mission to China's Tiangong space station, near Jiuquan, Gansu province, China October 30, 2024. REUTERS/Florence Lo/File Photo/File Photo

Three Chinese astronauts landed back on Earth on Wednesday after six months on China's space station.
The crew’s landing module came down slowly after separating from the return vehicle, descending on a red-and-white parachute, in Dongfeng, in China’s northern Inner Mongolia region on the edge of the Gobi Desert. Their return had been delayed by a day due to strong winds and low visibility, The Associated Press reported. The area is prone to sandstorms this time of year.
The astronauts, Cai Xuzhe, Song Lingdong and Wang Haoze, were launched to the Tiangong space station in October, and they turned over control of the station Tuesday to the new crew that recently arrived to replace them.
The Shenzhou 20 that brought the new crew also carried equipment for space life sciences, microgravity physics and new technology for the space station.
The Tiangong, or “Heavenly Palace,” space station has made China a major player in a new era of space exploration and the use of permanent stations to conduct experiments in space, especially since it was entirely Chinese-built after the country was excluded from the International Space Station over US national security concerns.
China’s space program is controlled by the People’s Liberation Army, the military branch of the ruling Communist Party.
The three Chinese astronauts have carried out experiments and improvements to the space station during their time in space. Two of the astronauts, Cai and Song, conducted a nine-hour spacewalk, the world’s longest, during their mission, China's space agency said.
The country’s space program has grown rapidly in recent years. The space agency has landed an explorer on Mars and a rover on the far side of the moon. It aims to put a person on the moon before 2030.