jvkohl
07-31-2006, 09:37 PM
Here is more evidence against the likelihood of a functional human VNO.
Liberles SD, Buck LB. A second class
of chemosensory receptors in the olfactory epithelium.
http://www.nature.com/nature/journal/vaop/ncurrent/pdf/nature05066.pdf
Key Finding: Genes that
code for receptors, called 'trace amine-associated receptors' are present in human, mouse and fish. These
receptors, like other odor receptors are expressed in unique subsets of neurons dispersed in the olfactory
epithelium. In mice there are at least three of these receptors. One receptor recognizes volatile amines found in
urine. Another one detects a stress-related compound, and two others detect compounds that are found in different
concentrations in male versus female urine. One of these compounds is reported to be a pheromone. Collectively,
these findings indicate that chemical signals that are likely to function as pheromones are processed by the main
olfactory system of mammals, rather than by the accessory olfactory system, which includes the vomeronasal
organ.
JVK
Discussion on this topic can be found by
clicking here. (http://www.pherolibrary.com/forum/showthread.php?t=16317)
Liberles SD, Buck LB. A second class
of chemosensory receptors in the olfactory epithelium.
http://www.nature.com/nature/journal/vaop/ncurrent/pdf/nature05066.pdf
Key Finding: Genes that
code for receptors, called 'trace amine-associated receptors' are present in human, mouse and fish. These
receptors, like other odor receptors are expressed in unique subsets of neurons dispersed in the olfactory
epithelium. In mice there are at least three of these receptors. One receptor recognizes volatile amines found in
urine. Another one detects a stress-related compound, and two others detect compounds that are found in different
concentrations in male versus female urine. One of these compounds is reported to be a pheromone. Collectively,
these findings indicate that chemical signals that are likely to function as pheromones are processed by the main
olfactory system of mammals, rather than by the accessory olfactory system, which includes the vomeronasal
organ.
JVK
Discussion on this topic can be found by
clicking here. (http://www.pherolibrary.com/forum/showthread.php?t=16317)