- Beth Kassab
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When SpaceX’s Falcon 9 launches tonight, the rocket will carry muscle cells from Central Floridians to the International Space Station.
The cargo is an experiment run by a team of scientists from the University of Florida and AdventHealth to examine how micro-gravity changes muscle cells. The findings could one day prove helpful to astronauts who spend long periods in space or – for those of us who are Earthbound – potentially translate to new ways to prevent or reverse weakness developed by patients confined to bed or with limited mobility.
“This is a really exciting time for us,” said Paul Coen, an associate investigator at AdventHealth’s Translational Research Institute. “The tissue chips are like miniature labs that will allow us to study how micro-gravity not only negatively impacts muscle biology but will also give us the opportunity to test therapeutic countermeasures.”
Muscles atrophy and weaken when a patient is unable to move and Coen, who studies how aging impacts muscle loss, is looking for clues to help people remain stronger for longer periods of time. The cells headed to ISS are divided into two groups – those collected from young and older adults. Scientists want understand how micro-gravity might impact muscle from older adults differently from younger adults.
The shoebox sized LabCube that contains the muscle tissue chips will then be frozen and preserved before it returns to Earth later in the year. The tissue chips will travel to the University of Florida, where Dr. Siobhan Malany, the lead investigator and a professor in the College of Pharmacy, will run a number of tests to determine the impact of microgravity on the cells.
This is the second launch of human muscle cells collected at AdventHealth into space after the first batch took off in 2018. New this time: electrical stimulation built into the tissue chips so that researchers can simulate the muscle cells contracting aboard ISS. The goal is to understand how contraction might protect the cells from microgravity.
A separate, but scientifically related National Institutes of Health funded study led by Coen, is also underway at AdventHealth Translational Research Institute. He is asking participants to spend 10 days on bedrest at TRI’s Clinical Research Unit and is comparing muscle mass, fitness and other health variables before, during and after the 10-day period. People taking part in the study can’t get up and walk around, but they can read, scroll their phones or watch tv or movies.
“The bedrooms at our clinical research unit are nicely furnished and are really comfortable,” Coen said. “Generally, our participants have a pretty good time during their 10-day stay with us.”
People interested in participating in the study can find more information here.
The results from both the space and bedrest research might one day help people recover faster after long hospital stays or, perhaps one day, combat natural muscle changes brought on by aging.
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