But now a new study, published in Frontiers in Physiology, has found two olfactory receptors
in human lung tissue.
Last summer bioengineers at Harvard University wrote in the journal Science that they had created a device that mimics a human lung: a porous membrane surrounded
by human lung tissue cells, which breathes, distributes nutrients to cells and initiates immune responses.
The researchers also
tested human lung tissue of premature infants with BPD and found similar levels of increased autophagy.
To find out, cell biologist Paola Vermeer of the University of Iowa in Iowa City and colleagues first examined
donated human lung tissue.