Flavor and Fertility: Taste Receptors for Sweet and Savory Linked to Male Reproduction
Maybe you've actually experienced one yourself. It's hard to deny that food is closely tied to sex; whether as an aphrodisiac or a sexual object in and of itself -- you've seen that sandwich-eating sex scene at the end of Bridesmaids. Hey, we're not going to judge.
Turns out the carnal ties to fodder might be more biologically intertwined than you may have thought; the genes that allow us to taste umami (savory) and sweet are same genes that are active in male reproduction.
On Tuesday, a study published by Proceedings of the National Academy of Sciences found that suppressing that gene can lead to lack of taste and reproduction issues.
When food enters your mouth flavors activate the taste receptors which sends a protein signal to the brain alerting of the flavors. "As soon as you chew on it and eat, your body starts a messaging process much like a computer," said Dr. Robert Fishman of Post Haste Pharmacy in Hollywood.
If you were actually going to compare the body to a computer, the taste receptor would be keyboard and the protein would be the hard drive. When you type a message or code into the keyboard it sends a message to the drive telling the system how to operate: both are needed for the system to function properly. Damage the keyboard and you're not going to send a message. Harm the hard drive: it's like the Apple wheel of death.
Here, the gene TAS1R, the taste receptor, would be the keyboard and the protein, gustducin that is manifested by the gene GNAT3, is the hard drive.
Geneticist Bedrich Mosinger, a specialist in the science of taste, and his team at Monell Chemical Senses Center in Philadelphia were trying to examine the behavior of these genes in mice when they came across a startling discovery.
When the TAS1R and GNAT3 genes were deactivated in mating mice, they found that the male mice became sterile.
Right now you may be wondering whether they discovered a new form of male birth control.