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"Black Children More Likely to Have Peanut Allergy"(36 Posts)
Yes, but this study refers to children with african ancestry in Chicago, not african children. In africa, children would have more immune challenges on a constant basis and this has been shown to dampen down allergic responses for a number of reasons including some parasites actually interfere in allergic responses. In america, that would probably no longer be an issue. Also, this research is not making any "assumption based on genetics", they are reporting a statistically relevant association between genetic ancestry and incidence of allergy. Such genome-wide association studies are very common in many aspects of scientific research and some very real differences have been seen between different races i.e. some diseases (or tendency to disease) are much more prevalent in some races than others.
Regarding your allergy clinic, that would all depend on where you live and the cultural makeup of that area.
@bran - that may certainly be a reason, but african children face far more immune challenges on a daily basis than in the US and are therefore less likely to develop an allergy.
@kerrymumbles - the chances of developing an allergy vary widely depending on where you live, it is not solely dependent on genetics. A person living in Africa would be less likely than that same person living in US to develop an allergy. However, if a cohort of people in the US of the same genetic ancestry (be it African or Asian or Northern European) show a higher than average presentation of the same allergy, this is scientifically interesting as then there is a common genetic thread linking this phenomenon and if that was found, it could provide answers to many allergic tendencies.
Tis quite an interesting thread. I was pointing out sometime ago to a colleague that there seemed to be less cases of asthma amongst children born and living in africa than in the u.k. The colleaugues response was "they're pobably not dignosed or die very early" . Born in the u.k and raised in nigeria from about 7 yrs of age, i was diagnosed with asthma shortly after arriving there. I had always suffered from breathlessness in the u.k but had never been diagnosed. At school there was a very strong correlation between pupils that were from england with an asthma diagnosis. The "local children" just didnt have seem to have any of our sniffles, coughs, eczema etc And it was not because they hadnt been disgnosed!
Some lived in awful conditions, near untarred roads coupled with awful air polution and other irritants, i cant say theirdiet was that great either but they thrived all the same, and had the lungs of a lion, us british kids only needed to catch a whiff and our chests would start constricting.
Asthma over there has usually been seen as a condition children over from abroad suffer from and more often now a condition children from "priviledged" backgrounds seem to suffer from.
I stronly believe there is "something" to all of this although not scientifically proven, but maybe some research could shed some more light.
babybarrister ^well in central london i have seen lots of african/carribean children at the clinic"
is neither here nor there really, are you saying that there is a higher rate of asthma/allergies amongst these children than other races ?
@nokissy - I think Babybarrister may be referring to the first OP, kerrymumbles, who said all she sees at clinic are white kids
Message withdrawn at poster's request.
hey kerry, checvk out dd2 atopic shiners in this pic on my blog heder do i need to say she is the one in black?
taken at the height of her hayfever season.
this is a nice and recent article on the hygiene hypothesis, which is not universally accepted.
And apparently asthma is on the rise in Africa and Asia as well as the western cultures so it's not just a "white kid" thing.
Possibly more to do with gut bacteria, which have a modulating effect on the immune responses to food substances, than infectious agents - but who knows? It's an uncertain field.
I have my own thoughts around it - involving the increase in unnatural foods and the use of pesticides but those are generally considered under the "conspiracy theory" banner so won't bother talking about them here.
Message withdrawn at poster's request.
"yes, genetic ancestry. so if the group is of African ancestry I don't understand how it makes a difference that they are now in Chicago for however many generations."
Because most Black people in the States come from a very narrow range of the African continent (it's obviously not one genetics for people of African descent, the genetic profiles from Africa are very diverse from region to region) and the history of the States means that for most, their family tree will include more White and Native American than it would be for those living in Africa which may change certain things. Also, as has been said, what they come into contact with will be very different.
And in the UK, the passing white majority is close to 90% so those you see in the clinic probably has more to do with that than anything else.
there was something on R4 about this the other day- apropos of epigenetics- they said (I think) that Jewish children in (I think) the UK had much higher rates of peanut allergy than Jewish children in Israel, the idea being that they were of similar genetic stock but that aspects of the environment 'swithched on' the atopic genes, when they were living in the UK
or something like that
InTheNightKitchen do you have a child with allergies? The description of 'pale and washed out' is very accurate for most kids with allergies with the addition of black eyes (allergic shiners). Read this: www.bbc.co.uk/health/physical_health/conditions/in_depth/allergies/aboutallergies_spotting.shtml
Quote "Children with allergies tend to have an unhealthy looking pale complexion called 'white dermatographism' and are often small for their age."
The original point of this thread (which seems to have been totally missed/twisted) was simply that it is quite surprising to hear that black children are more likely to have peanut allergy as most info up to now has seem to indicate that allergies are less common in the afro-caribbean communities. Full stop.
''Quote "Children with allergies tend to have an unhealthy looking pale complexion called 'white dermatographism' and are often small for their age."
that describes two out of 3 of my daughters with allergies. the other one is stupidly tall, but has oral allergy syndrome and hayfever (birch), so whe it hit hards she looks bloody awful. i got called into school over the summer as they were very concerned at how pale she was and how tired she looked (atopic shiners)
babybarrister that's interesting that you say the highest rate of coeliac disease is Ireland as I was told by my DD's consultant that it's the Italians who have the highest rate in the World and that it was the Romans who brought the disease to the rest of the World. I asked if this was because they ate so much wheat (pasta, pizza etc) but he said no it was simply a genetic thing as they didn't used to eat that stuff in Roman times. He said that most research into coeliac disease comes out of Italy for this reason. It is all very confusing as I too have heard that certain allergies are more common in countries where they eat a lot of certain foods (eg lupin allergy in France and other parts of Europe but not here as not commonly used in food) but then other things I read seem to say it's when people don't normally eat a certain food then introduce it at a later date that an allergy occurs . Not that any of this helps me deal with DD1's coeliac disease or DS2's multiple allergies! I'm off to prepare freefrom party food for the pair of them to take with them this afternoon. Oh to be able to just turn up and let them eat whatever they want...
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