New heart attack treatment uses photosynthetic bacteria to make oxygen

Cyanobacteria lessened damage to rat hearts deprived of blood supply

photosynthetic bacteria

LIGHT HEARTED  When exposed to light, photosynthetic bacteria (green) make oxygen that can keep rat heart cells (red, shown here growing in a lab dish) alive after a heart attack.

J.E. Cohen et al/Science Advances 2017

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