Source: THISDAY LIVE
The adult human facial sebum (oil)
contains potent mosquito repellent properties, says a Nigerian facial
surgeon, Dr. Bayo Aluko-Olokun.
Aluko-Olokun, a facial surgeon at the Department of Facial Surgery, National Hospital, Abuja, made this known yesterday in Abuja.
Aluko-Olokun, a facial surgeon at the Department of Facial Surgery, National Hospital, Abuja, made this known yesterday in Abuja.
The expert said he made the discovery
after conducting studies at the National Post Graduate Medical College
of Nigeria, Lagos, in 2015, by testing the reaction of life mosquitoes
to sebum-coated paper, P.M. News reported yesterday.
According to him, he applied the sebum to a piece of paper and placed it beside another with no substance applied in a transparent 70ml glass bottle.
According to him, he applied the sebum to a piece of paper and placed it beside another with no substance applied in a transparent 70ml glass bottle.
“Evidence of mosquito bite is often seen
on the face of children in the third world. This is rarely seen in
adults as adults produce copious facial skin sebum in contradistinction
to children.
“Five live mosquitoes were introduced into the bottle and the highest number of mosquitoes standing on each piece of paper at any point in time was noted over 50 minutes.
“Five live mosquitoes were introduced into the bottle and the highest number of mosquitoes standing on each piece of paper at any point in time was noted over 50 minutes.
“The total length of time in seconds,
during which there was at least one insect on each piece of paper was
also noted and comparison of the results was then done.
“Up to three mosquitoes perched on the uncoated paper at the same time while none did on the sebum-coated paper.
“The total period of time during which at least one mosquito was found perching on the uncoated paper was 2,851 seconds out of 3,000, while zero seconds was recorded for the sebum-coated paper out of 3,000 seconds.
“The total period of time during which at least one mosquito was found perching on the uncoated paper was 2,851 seconds out of 3,000, while zero seconds was recorded for the sebum-coated paper out of 3,000 seconds.
“The results of this preliminary study
appear to indicate that human facial sebum holds promise as a mosquito
repellent and this calls for further study of this phenomenon,”
Aluko-Olokun said.
He said that this finding was published in the Volume Two, 2016, issue of the Research Journal of the University of Mauritius.
He said that this finding was published in the Volume Two, 2016, issue of the Research Journal of the University of Mauritius.
He said presently, the Department of
Chemistry and Entomology, University of Ilorin, was carrying out further
studies on the properties of the sebum to reveal the active principle.
However, he called on stakeholders and the international community to key into the discovery by undertaking more studies and research on the properties of the sebum as a likely repellent against mosquito bite.
However, he called on stakeholders and the international community to key into the discovery by undertaking more studies and research on the properties of the sebum as a likely repellent against mosquito bite.
He said that this study could help end
the scourge of diseases caused by mosquito bites such as malaria, dengue
fever, Japanese encephalitis and the microcephaly known as the Zika
virus.
He said that the dengue fever afflicted up to 580 million individuals yearly while the Japanese encephalitis had a fatality rate of 0.3-60 per cent.
He said that the dengue fever afflicted up to 580 million individuals yearly while the Japanese encephalitis had a fatality rate of 0.3-60 per cent.
According to Aluko-Olokun, malaria accounts for more than a million deaths yearly mostly involving children.
“Most of these deaths occur in low-income countries where citizens are unable to afford mosquito repellents,” he said.
He said that the search for a cheap, natural, effective and harmless alternative to currently available proprietary products could yield positive results and benefit the people.
“Most of these deaths occur in low-income countries where citizens are unable to afford mosquito repellents,” he said.
He said that the search for a cheap, natural, effective and harmless alternative to currently available proprietary products could yield positive results and benefit the people.
Aluko-Olokun said that apart from its
medical implications, his finding could also have a positive effect on
pest control in the pharmaceutical, food and beverage industry.
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