-- Robert Preidt
FRIDAY, Nov. 8 (HealthDay News) -- Bone marrow transplants may
help cure peanut allergies, a new case study suggests.
The study involved a 10-year-old boy who no longer had a peanut
allergy after undergoing a bone marrow transplant for leukemia.
"It has been reported that bone marrow and liver transplants can transfer peanut allergy from donor to recipient," study author Dr. Yong Luo said in a news release from the American College of Allergy, Asthma and Immunology (ACAAI). "But our research found a rare case in which a transplant seems to have cured the recipient of their allergy."
The case involved a boy who was diagnosed with a peanut allergy
when he was 15 months old. He had the bone marrow transplant at age
10 and received his new marrow from a donor with no known
Soon after the transplant, it appeared that the boy no longer
had a peanut allergy. That discovery was confirmed by allergists
through an oral food challenge, in which the boy ate a small amount
of peanut and showed no allergic reaction.
The research was scheduled for presentation this week at the
ACAAI annual meeting in Baltimore. Research presented at medical
meetings should be viewed as preliminary until published in a
Study co-author Dr. Steven Weiss said this and previous research
indicates that "genetic modification during the early stages of
immune cell development in bone marrow may play a large role in
Peanut allergy is the most common food allergy among school-aged
children in the United States, affecting about 400,000 youngsters,
according to the ACAAI. Unlike milk or soy allergies, peanut
allergies tend to last a lifetime.
Even if a parent thinks their child may no longer have an
allergy, proper testing should be done to confirm if the child is
still sensitive to any particular allergens, according to the
The U.S. National Institute of Allergy and Infectious Diseases
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