scholarly journals Allergy prevention

2021 ◽  
Vol 51 (1) ◽  
pp. 4-5
Author(s):  
Robert J. Boyle ◽  
Mohamed H. Shamji
Keyword(s):  
Children ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 497
Author(s):  
Aikaterini Anagnostou

Background: Food allergies are common, affecting 1 in 13 school children in the United States and their prevalence is increasing. Many misconceptions exist with regards to food allergy prevention, diagnosis and management. Objective: The main objective of this review is to address misconceptions with regards to food allergies and discuss the optimal, evidence-based approach for patients who carry this diagnosis. Observations: Common misconceptions in terms of food allergy prevention include beliefs that breastfeeding and delayed introduction of allergenic foods prevent the development of food allergies. In terms of diagnosis, statements such as ‘larger skin prick tests or/and higher levels of food-specific IgE can predict the severity of food-induced allergic reactions’, or ‘Tryptase is always elevated in food-induced anaphylaxis’ are inaccurate. Additionally, egg allergy is not a contraindication for receiving the influenza vaccine, food-allergy related fatalities are rare and peanut oral immunotherapy, despite reported benefits, is not a cure for food allergies. Finally, not all infants with eczema will develop food allergies and epinephrine auto-injectors may unfortunately be both unavailable and underused in food-triggered anaphylaxis. Conclusions and relevance: Healthcare professionals must be familiar with recent evidence in the food allergy field and avoid common misunderstandings that may negatively affect prevention, diagnosis and management of this chronic disease.


Author(s):  
Patricia Macchiaverni ◽  
Akila Rekima ◽  
Lieke van den Elsen ◽  
Harald Renz ◽  
Valerie Verhasselt

2008 ◽  
Vol 121 (2) ◽  
pp. S200-S200
Author(s):  
R TEICH ◽  
N BLUMER ◽  
C PATRASCAN ◽  
H GARN ◽  
H RENZ
Keyword(s):  

Author(s):  
Elissa M. Abrams ◽  
Marcus Shaker ◽  
Matthew Greenhawt ◽  
Douglas P. Mack

2017 ◽  
Vol 184 ◽  
pp. 13-18 ◽  
Author(s):  
Elissa M. Abrams ◽  
Matthew Greenhawt ◽  
David M. Fleischer ◽  
Edmond S. Chan

2017 ◽  
Vol 70 (Suppl. 2) ◽  
pp. 38-45 ◽  
Author(s):  
Michael D. Cabana

Asthma, eczema, food allergy, and allergic rhinitis are some of the most common pediatric, chronic conditions in the world. Breastfeeding is the optimal way to feed all infants. For those infants who are exposed to infant formula, some studies suggest that certain partially hydrolyzed or extensively hydrolyzed formulas may decrease the risk of allergic disease compared to nonhydrolyzed formulas for children with a family history of atopic disease. Overall, there is some evidence to suggest that partially hydrolyzed whey formulas and extensively hydrolyzed casein formulas may decrease the risk of developing eczema for infants at high risk of allergic disease. The evidence for a preventive effect of hydrolyzed formulas on allergic rhinitis, food allergy, and asthma is inconsistent and insufficient. Finally, the qualitative changes to the peptides by the method of hydrolysis, not just the degree of protein hydrolysis, may have a large influence on the preventive effect of a particular infant formula for the potential risk of allergic disease. As a result, it may be difficult to generalize findings from clinical studies using a specific infant formula to other infant formulas from different manufacturers using different methods of hydrolysis. Further clinical studies are needed to help clinicians identify which infants may benefit from early intervention, as well as which specific hydrolyzed formulas are best suited to decrease the risk of future allergic disease.


2021 ◽  
Vol 11 ◽  
Author(s):  
Priya J. Sarate ◽  
Dagmar Srutkova ◽  
Nora Geissler ◽  
Martin Schwarzer ◽  
Irma Schabussova ◽  
...  

A steady rise in the number of poly-sensitized patients has increased the demand for effective prophylactic strategies against multi-sensitivities. Probiotic bacteria have been successfully used in clinics and experimental models to prevent allergic mono-sensitization. In the present study, we have investigated whether probiotic bacteria could prevent poly-sensitization by imprinting on the immune system early in life. We used two recombinant variants of probiotic Escherichia coli Nissle 1917 (EcN): i) EcN expressing birch and grass pollen, poly-allergen chimera construct (EcN-Chim), and ii) an “empty” EcN without allergen expression (EcN-Ctrl). Conventional mice (CV) were treated with either EcN-Chim or EcN-Ctrl in the last week of the gestation and lactation period. Gnotobiotic mice received one oral dose of either EcN-Chim or EcN-Ctrl before mating. The offspring from both models underwent systemic allergic poly-sensitization and intranasal challenge with recombinant birch and grass pollen allergens (rBet v 1, rPhl p 1, and rPhl p 5). In the CV setting, the colonization of offspring via treatment of mothers reduced allergic airway inflammation (AAI) in offspring compared to poly-sensitized controls. Similarly, in a gnotobiotic model, AAI was reduced in EcN-Chim and EcN-Ctrl mono-colonized offspring. However, allergy prevention was more pronounced in the EcN-Ctrl mono-colonized offspring as compared to EcN-Chim. Mono-colonization with EcN-Ctrl was associated with a shift toward mixed Th1/Treg immune responses, increased expression of TLR2 and TLR4 in the lung, and maintained levels of zonulin-1 in lung epithelial cells as compared to GF poly-sensitized and EcN-Chim mono-colonized mice. This study is the first one to establish the model of allergic poly-sensitization in gnotobiotic mice. Using two different settings, gnotobiotic and conventional mice, we demonstrated that an early life intervention with the EcN without expressing an allergen is a powerful strategy to prevent poly-sensitization later in life.


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