Angela
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Maybe they do.
See:
"here’s another reason few Chinese consumers buy deodorant: basic biology.Scientists in recent years have shown that many East Asians, a group that includes China’s ethnic Han majority, have a gene that lowers the likelihood of a strong “human axillary odor” — scientist-speak for body stink.
That lowers the likelihood that they will use deodorant to begin with, according to a 2013 study by researchers at the University of Bristol and Brunel University in Britain, after a survey of nearly 6,500 women of various backgrounds.
“It is likely that deodorant usage is not widely adopted because there is, for much of the East Asia population, no need for it,” it said. (For those curious about such matters, that same genetic difference also leads to drier earwax.)"
The derived snp in question isABCC11. The G is ancestral or strong body odor.
https://www.gnxp.com/WordPress/2018...dorant/?utm_source=dlvr.it&utm_medium=twitter
Here is the paper:
See:
"here’s another reason few Chinese consumers buy deodorant: basic biology.Scientists in recent years have shown that many East Asians, a group that includes China’s ethnic Han majority, have a gene that lowers the likelihood of a strong “human axillary odor” — scientist-speak for body stink.
That lowers the likelihood that they will use deodorant to begin with, according to a 2013 study by researchers at the University of Bristol and Brunel University in Britain, after a survey of nearly 6,500 women of various backgrounds.
“It is likely that deodorant usage is not widely adopted because there is, for much of the East Asia population, no need for it,” it said. (For those curious about such matters, that same genetic difference also leads to drier earwax.)"
The derived snp in question isABCC11. The G is ancestral or strong body odor.
https://www.gnxp.com/WordPress/2018...dorant/?utm_source=dlvr.it&utm_medium=twitter
Here is the paper:
A missense variant of the ABCC11 gene is associated with Axillary Osmidrosis susceptibility and clinical phenotypes in the Chinese Han Population, which explicitly probes the correlation between body odor (“Axillary Osmidrosis”) and the SNP in question in the Han Chinese population.
"If you dig into the frequencies it seems that the derived mutation is absent among populations in Africa without recent Eurasian back-migration. I looked it up, and it’s segregating in ancient Eurasian samples, with Ust Ishim being a heterozygote. It is curious that in no population has the derived frequency swept to fixation, nor has the ancestral variant fixed in other groups (such as in Europe).
I strongly doubt that there is any selection on this locus due to earwax or body odor. It is a pleiotropic locus, there are other effects from the mutation. One of those other effects is probably the target of any selection. And in regards to selection, it seems likely that that would be a balancing sort since neither the ancestral nor the derived variant are fixed in most populations."
You should read the comments.
I found the comment about the lack of perfume use there also interesting. No body odor to mask, but perhaps none to enhance either.
Also, just for some common sense, even if you have a tendency to have lower body odor, if you're not hygienic for long enough, you will have body odor. It's a question of degree. Diet is also a big factor. The Chinese in certain regions love garlic. Eat enough of it and it will ooze out of your pores no matter who you are. The same is true for other spices, or for beer or any number of other things.
This is the snp involved: rs17822931-A
T equals A at 23andme.
This is more complicated because, as they say in one of the comments, this is a polygenic trait not determined by one snp. I'm homozygous for "C" or "G" ancestral, and I almost never use either deoderant or anti-antiperspirant, and never have done. There's never been the need to put all those chemicals on my body as I figured out as a teen-ager that I didn't need them unless I was going to be running or working in the yard. My daughter says I'm not human. Even my shoes don't have a bad odor.
"If you dig into the frequencies it seems that the derived mutation is absent among populations in Africa without recent Eurasian back-migration. I looked it up, and it’s segregating in ancient Eurasian samples, with Ust Ishim being a heterozygote. It is curious that in no population has the derived frequency swept to fixation, nor has the ancestral variant fixed in other groups (such as in Europe).
I strongly doubt that there is any selection on this locus due to earwax or body odor. It is a pleiotropic locus, there are other effects from the mutation. One of those other effects is probably the target of any selection. And in regards to selection, it seems likely that that would be a balancing sort since neither the ancestral nor the derived variant are fixed in most populations."
You should read the comments.
I found the comment about the lack of perfume use there also interesting. No body odor to mask, but perhaps none to enhance either.
Also, just for some common sense, even if you have a tendency to have lower body odor, if you're not hygienic for long enough, you will have body odor. It's a question of degree. Diet is also a big factor. The Chinese in certain regions love garlic. Eat enough of it and it will ooze out of your pores no matter who you are. The same is true for other spices, or for beer or any number of other things.
This is the snp involved: rs17822931-A
T equals A at 23andme.
This is more complicated because, as they say in one of the comments, this is a polygenic trait not determined by one snp. I'm homozygous for "C" or "G" ancestral, and I almost never use either deoderant or anti-antiperspirant, and never have done. There's never been the need to put all those chemicals on my body as I figured out as a teen-ager that I didn't need them unless I was going to be running or working in the yard. My daughter says I'm not human. Even my shoes don't have a bad odor.