‘Firefly’ stem cells may help repair damaged hearts

‘Firefly’ stem cells may help repair damaged hearts. No, these aren’t cells from actual fireflies but cells so named for their ability to glow like fireflies and contains the same enzyme that makes fireflies glow. But I think the coolest part of this story is this:

The “firefly” stem cells glow brighter and brighter as they develop into healthy heart muscle, allowing doctors to track whether and where the stem cells are working.

So essentially we can now track the stem cells and see exactly what they’re doing. Kinda takes all the mystery out of it.

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