 The study found that in humans and monkeys, taste buds are innervated by nerve fibers predominantly expressing P2X3-homomeric receptors, while in mice they are composed of P2X2-P2X3 heteromers. This suggests that antagonists targeting P2X3-homomeric receptors may not be spared from affecting taste function in people suffering from refractory or unexplained chronic cough, RCC-TUCC. This article was offered by British High, Marie E. Jette, Miley, and others.