Our Complex and Fascinating Olfactory System
The New York Times’s Smell Turns Up in Unexpected Places is one of the most fascinating articles I’ve read lately. Scientific research conducted over the last decade has revealed that odor receptors can be found not only in the nose, but in our skin, heart, kidneys and other organs. What is more, they aid various physiological functions, such as helping tissues heal or acting as a safety switch against poisonous compounds. Whether we will see the development of scent based medicine is still under debate, but it’s beyond doubt that our olfactory system has an incredible and still poorly understood potential.
“Over the last decade or so, scientists have discovered that odor receptors are not solely confined to the nose, but found throughout body — in the liver, the heart, the kidneys and even sperm — where they play a pivotal role in a host of physiological functions.
Now, a team of biologists at Ruhr University Bochum in Germany has found that our skin is bristling with olfactory receptors. “More than 15 of the olfactory receptors that exist in the nose are also found in human skin cells,” said the lead researcher, Dr. Hanns Hatt. Not only that, but exposing one of these receptors (colorfully named OR2AT4) to a synthetic sandalwood odor known as Sandalore sets off a cascade of molecular signals that appears to induce healing in injured tissue. Read the rest.
Thank you to Susan, Amanda and L for a link.
















