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Old 30-05-2009, 10:06 AM posted to bionet.plants
michael angel michael angel is offline
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First recorded activity by GardenBanter: May 2009
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Default Oil Seed Rape - a non-specific allergen?

On Apr 29, 7:01*pm, Alison Forlong wrote:
I am a 45 year old female with no history of hayfever allergy, even though I have previously lived in rural areas with high pollen load in New Zealand. I shifted to Fance a month ago to a rural area where there are fields of oil seed rape in flower, and am suffering hayfever for the first time in my life. While I obviously cannot say with absolute certainty that it is caused by the rape, it is interesting to note that the other surrounding trees that are in flower are also grown in New Zealand and I have never reacted to their pollen. I thought I would add this information to the mix after reading the comments by Sean disputing that oil seed rape starts new allergys in previous non-sufferers. (The quote by Sean says "As an (extreme) hayfever sufferer who works on rape seed, I can personally put paid to the assertion (sometimes seen in the press) that oil seed rape is a non-specific allergen..that increases suffering in ALL hay fever cases and starts new ones in previous non-sufferers.") Also in the same article, David Lonsdale says "Certainly for people working with oilseed rape great care has to be taken, as an *allergenic response to the pollen is easily developed." As hayfever is new for me, I do not know much about it, and I was wondering if either David or anyone else could tell me what steps are involved in this "great care" that is taken, as I also would like to follow them. My email address is: . Many thanks, Alison. *
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There is a lot of mustard seed grown around S. France which does looks
like Rape.
There may have been pesticides used on the crop that you may be
sensitive too as well.
An "Old Wives Cure" is to eat local honey produced by the bees
pollinating that crop.
Otherwise hit the ant-histamines.
Any foreign protein -especially pollens can cause an allergic reaction
sometimes immediately sometimes, with some kinds of food allergies, up
to 48 hours. Symptoms can be diffuse and not necessarily related or
contained only in/by the respiratory system.
The first indication of an immediate food allergy is is a 25-40%
increase in resting pulse rate (say from 80-120 BPM). This can also
cause more adrenaline to flow as the body puts its defence system on
alert. Therefore people's behaviour may get assertive, prickly or even
aggressive.
ma