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 Post subject: Ticks spreading meat allergies on the East Coast
PostPosted: Thu Jun 21, 2012 1:44 pm 
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Okay, this is pretty freaky. It turns out there's a tick that, if it bites you a bunch it makes you allergic to red meat.

Quote:
Abstract
Background:
In 2009, we reported a novel form of delayed anaphylaxis to red meat, which is related to serum IgE antibodies to the oligosaccharide galactose-alpha-1,3-galactose (alpha-gal). Most of these patients had tolerated meat for many years previously. The implication is that some exposure in adult life had stimulated the production of these IgE antibodies.

Objectives:
To investigate possible causes of this IgE antibody response, focusing on evidence related to tick bites, which are common in the region where these reactions occur.

Methods:
Serum assays were carried out using biotinylated proteins and extracts bound to a streptavidin ImmunoCAP.

Results:
Prospective studies on IgE antibodies in three subjects following tick bites showed an increase in IgE to alpha-gal of twenty-fold or greater. Other evidence included i) a strong correlation between histories of tick bites and IgE to alpha-gal (χ2=26.8, p<0.001), ii) evidence that these IgE antibodies are common in areas where the tick Amblyomma americanum is common, and iii) a significant correlation between IgE antibodies to alpha-gal and IgE antibodies to proteins derived from A. americanum (rs=0.75, p<0.001).

Conclusion:
The results presented here provide evidence that tick bites are a cause, or possibly the only cause, of IgE specific for alpha-gal in this area of the United States. Both the number of subjects becoming sensitized and the titer of IgE antibodies to alpha-gal are striking. Here we report the first example of a response to an ectoparasite giving rise to an important form of food allergy.


The full paper (a pdf):

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3085643/pdf/nihms-273885.pdf

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Thu Jun 21, 2012 1:56 pm 
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that is freaky, and the ticks have been out in force this year.

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Thu Jun 21, 2012 2:20 pm 
Flat Chesty McNoBoobs
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Oh fuff. Nothing a lifetime of intravenous antibiotics won't cure!*


*Kidding! That is terrifying. Also, I am scared to see where the crazy lyme disease people go with it.

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Thu Jun 21, 2012 2:49 pm 
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That's so messed up, I just read a magazine article in an allergic living magazine the other day talking about the tick-meat allergy problem. John Grisham, I think it is, talked about having it. The same magazine also mentioned "pork-cat syndrome", which is where people allergic to cats cross react to pork meat with an allergy. Bring on the reluctant vegetarian masses!

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Thu Jun 21, 2012 4:47 pm 
Drunk Dialed Ian MacKaye
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Ticks are terrifying. I really didn't think they were until I looked up how to remove one recently and found a big list of diseases from the CDC. My daughter just had her first tick and it scares me.


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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Thu Jun 21, 2012 4:50 pm 
The Real Hamburger Helper
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I back this

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Thu Jun 21, 2012 9:44 pm 
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My husband, who out of nowhere developed a wicked beef allergy a few years ago, just told me about this discovery! We're wondering now if he got a tick bite at some point!


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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Fri Jun 22, 2012 1:56 pm 
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I'm going to encourage all of my omni friends to spend lots of time in the woods!


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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Fri Jun 22, 2012 2:23 pm 
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it looks like it's only the lone star tick though. http://en.wikipedia.org/wiki/Amblyomma_americanum

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Fri Jun 22, 2012 9:16 pm 
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I wonder if I should start to feel guilty about all the ticks I kill. If they want to eat me, I'm a shitty vegan.

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Fri Jun 22, 2012 9:23 pm 
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PETA-tick!

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Sat Jun 23, 2012 8:44 am 
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lycophyte wrote:
I wonder if I should start to feel guilty about all the ticks I kill. If they want to eat me, I'm a shitty vegan.


well based on this new info, rather than killing them, you should relocate them to omnivore yards. It's the only vegan thing to do.

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Imma let you finish, but the Paranthropus Boisei were the greatest vegans ever.

Ugh I saw all these cave paintings complaining about vegan cheese options. I don't miss those days. -Isa


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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Sat Jun 23, 2012 10:03 am 
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unfortunately it doesn't give them chicken/fish allergies. so more animals will be dying. :-(

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 Post subject: Re: Ticks spreading meat allergies on the East Coast
PostPosted: Sun Jun 24, 2012 12:23 pm 
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Someone shared this on FB the other day. I had never heard of it before and it's super creepy to me.

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