Alpha-Tryptase Linked to Prevalence of Anaphylaxis, Food Allergy
Medically reviewed by Drugs.com.
By Elana Gotkine HealthDay Reporter
FRIDAY, Sept. 29, 2023 -- Alpha-tryptase is associated with increased prevalence of anaphylaxis or severe reaction to food, according to a study published online Aug. 6 in the Journal of Allergy and Clinical Immunology.
Abigail Lang, M.D., from the Ann and Robert H. Lurie Children's Hospital of Chicago, and colleagues examined the association between α-tryptase and severity of food allergy among 119 people who underwent tryptase genotyping: 82 from a cohort at the National Institute of Allergy and Infectious Diseases (NIAID) and 37 children who reacted to a peanut oral food challenge (OFC) at Lurie Children's Hospital of Chicago.
The researchers found that the presence of α-tryptase was associated with a higher prevalence of food-triggered anaphylaxis than in those with only β-tryptase among those in the NIAID cohort. Only 17 percent of children in the OFC cohort with β-tryptase had a severe reaction compared with 65 percent of those with α-tryptase. Higher total Severity Grading Score for Acute Reactions (SGSAR) scores were seen for individuals with α-tryptase compared with those with no α-tryptase. Significant positive correlations were seen for α-tryptase isoform copy number and higher total SGSAR and OFC symptom scores (Bock/Practical Allergy).
"Our findings also open the door to developing an entirely new treatment strategy for food allergies that would target or block α-tryptase," Lang said in a statement. "This is an exciting first step and more research is needed."
Abstract/Full Text (subscription or payment may be required)
Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.
![](/img/logo/vendor/healthday-logo.png)
© 2024 HealthDay. All rights reserved.
Posted September 2023
Read this next
Allergy-Related Psychological Distress Common
TUESDAY, July 2, 2024 -- Psychological distress related to food allergies (FA) is common globally, according to a study published online June 21 in Allergy. Rebecca C...
USPSTF: Not Enough Evidence to Recommend Screening for Food Insecurity
WEDNESDAY, June 26, 2024 -- The U.S. Preventive Services Task Force (USPSTF) concludes that the current evidence is insufficient for recommending screening for food insecurity in...
Less Than One-Quarter of Patients Hospitalized for CVD Receive Dietary Counseling
TUESDAY, June 18, 2024 -- Dietary counseling is infrequently documented after hospitalization for cardiovascular disease (CVD) episodes, according to a study recently published in...
More news resources
- FDA Medwatch Drug Alerts
- Daily MedNews
- News for Health Professionals
- New Drug Approvals
- New Drug Applications
- Drug Shortages
- Clinical Trial Results
- Generic Drug Approvals
Subscribe to our newsletter
Whatever your topic of interest, subscribe to our newsletters to get the best of Drugs.com in your inbox.