In response to Margaret G. Bickmore and Andrea Tran re peanut allergy: I
was informed by a NICU RN that this is a new topic among allergy sufferers
and professionals. Unfortunately, I do not remember the organization that
she referred to that was studying peanut consumption during pregnancy and
effects on the baby, but she made a point to inform me so that I could
caution pregnant and nursing mothers. I too would like more information and
your references are helpful. My comments are simply to reinforce your query
about this phenomenon, although I myself do not have resources.
Patricia Ellis, RN, MA, IBCLC
New Jersey
----- Original Message -----
From: "Margaret G. Bickmore" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, October 17, 2000 6:59 PM
Subject: peanut allergy
> Andrea Tran wrote:
> <I have heard twice in the last couple weeks of mothers who were avoiding
> peanuts while breastfeeding in the belief that this would help prevent
> their children from developing a peanut allergy later in life. Is
> anybody familiar with this and is there any supporting research?>
>
> See the following:
>
> http://www.bmj.com/cgi/content/full/316/7149/1926/a British Medical
> Journal article [BMJ 1998;316:1926 (27 Jun)] titled "Women warned to
> avoid peanuts during pregnancy and lactation."
>
> The article reports on advice from the British government's Committee
> on Toxicity of Chemicals in Food, Consumer Products and the
> Environment, which studied the question of why peanut allergy (in
> particular) seems to be increasing.
>
> Quoting from the article:
> "John Warner, professor of child health at Southampton University and
> a member of the government's working group on peanut allergy, said:
> 'Maternal consumption of peanuts and peanut products seems to be
> associated with earlier onset and increasing prevalence of allergy.'
>
> "Evidence from aborted fetal samples shows that from the second
> trimester onwards fetuses are capable of producing an allergic
> reaction. There are several theories on how sensitisation occurs.
> Some research shows that antigens from the mother can cross the
> placenta, whereas other work suggests fetuses can swallow IgE from
> the amniotic fluid, causing sensitisation."
>
> (end quoting)
>
> Other pertinent references:
> Cohort study of peanut and tree nut sensitization by age of 4 years.
> BMJ 1996;313:514-517
>
> Managing peanut allergy. BMJ 1996;312:1050-1051
>
> Prevention of peanut allergy (Commentary). Lancet 1998 Jul 4;
352(9121):4-5
>
> Peanut allergy (correspondence). Lancet 1998 Aug 29; 352(9129):741-742
>
> Exposure to peanuts in utero and in infancy and the development of
> sensitization to peanut allergens in young children. Pedatr Allergy
> Immunol 1999 Feb; 10(1):27-32
>
>
> Margaret Bickmore
> brand-new LLL Leader in Longmont, CO (just up the road from you, Andrea!)
> nursing mother of a nut-allergic 2.5 yr old
> LactNet lurker, until now
>
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