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Sperm Have Nose

Rabu, 09 Desember 2009

Sperm Have Nose

Want to know how the sperm could find a ready fertilized egg in the womb? A study conducted by Dr. Marc Spehr of Rohr University Bochum in Germany managed to identify an olfactory odor on the surface of sperm.

Known, this odor olfactory task sperm move toward the source of a particular scent. This mechanism implies that the sperm depends on the sense of smell to find a ready fertilized egg.

Once explanation Science researchers reported at the end of March. Hopefully, further study of this process will one day be useful for researchers to create alternative contraception or even a new means to support fertility.

Olfactory odor on the sperm that recognize that the research team identified as hOR17-4. This substance is a group of proteins known as the identifier smell (olfactory receptors), which served to detect the scent.

Although many of these protein groups found in the nose, some of them, such as hOR17-4, were found in all parts of the body. Previous researchers have known that the olfactory receptors are also found in sperm, but what works in a place that was not clearly known.

In his research, Spehr and his colleagues describe hOR17-4 on various chemicals to see which could make it the active protein. From there they found, with a substance called bourgeonal, human sperm become active and start moving toward the source of these chemicals.

Bourgeonal is a synthetic ingredients used in perfume industry and sense-it is not a substance that is used to guide the body toward the sperm to the egg. "We do not see the molecules in bourgeonal there is also the human body, but was trying to learn composition. Who knows what that contributed in the female genital tract, "said Spehr.

Just FYI, according to Spehr, researchers have found between 20 and 40 olfactory receptors like hOR17-4, concentrated in the testicles. However, it is unclear whether the egg to reach all the sperm cells using only one course or complete protein.

In an editorial commenting on the study, Dr. F. Donner Babcock noted that if the correct sperm used smell to an egg, it will be useful for handling cases of infertility. "It is not possible a number of clinical infertility is caused by damage to the signal emitted by the egg cell. Or it could also translate the sperm of the received signal, "said Babcock.

Added, in the future, diagnostic tests designed to detect such abnormalities could explain why some people can not get pregnant.

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