scholarly journals P8: WALNUT ALLERGY – THE UTILITY OF SKIN PRICK TESTING WITH FRESH WALNUT

2021 ◽  
Vol 51 (S4) ◽  
pp. 6-7
Keyword(s):  
2019 ◽  
Vol 40 (6) ◽  
pp. 450-452 ◽  
Author(s):  
Ashley L. Devonshire ◽  
Rachel Glick Robison

Primary prevention and secondary prevention in the context of food allergy refer to prevention of the development of sensitization (i.e., the presence of food-specific immunoglobulin E (IgE) as measured by skin-prick testing and/or laboratory testing) and sensitization plus the clinical manifestations of food allergy, respectively. Until recently, interventions that target the prevention of food allergy have been limited. Although exclusive breast-feeding for the first 6 months of life has been a long-standing recommendation due to associated health benefits, recommendations regarding complementary feeding in infancy have significantly changed over the past 20 years. There now is evidence to support early introduction of peanut into the diet of infants with egg allergy, severe atopic dermatitis, or both diagnoses, defined as high risk for peanut allergy, to try to prevent development of peanut allergy. Although guideline-based recommendations are not available for early introduction of additional allergenic foods, this topic is being actively studied. There is no evidence to support additional dietary modification of the maternal or infant diet for the prevention of food allergy. Similarly, there is no conclusive evidence to support maternal avoidance diets for the prevention of food allergy.


2018 ◽  
Vol 13 (2) ◽  
Author(s):  
Kam Lun Hon ◽  
Kathy Yin Ching Tsang ◽  
Nga Hin Henry Pong ◽  
Ting Fan Leung
Keyword(s):  

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Peter Stepaniuk ◽  
Amin Kanani

Abstract Background Cannabis use is growing domestically due to recent legalization in many jurisdictions. There are two main species of cannabis, Cannabis sativa and Cannabis indica, and thousands of different commercially available cannabis strains. Although there are multiple reports of cannabis allergy in the literature, to our knowledge, there is no prior published report of selective cannabis strain allergy. Case presentation A 31-year-old male was referred for allergy assessment due to several episodes of localized pruritus and erythema after direct contact with various strains of cannabis. He had noted that the severity of his reaction appeared to be strain dependent. He developed a severe local reaction involving bilateral periorbital edema shortly after coming into direct contact with one particular strain of cannabis. He denied any adverse symptoms after inhalation of cannabis. Fresh skin prick testing was performed to various strains of cannabis and had positive testing to the three of the five tested strains. Conclusions We believe this is the first reported case of selective cannabis strain allergy based on patient history and skin prick testing. This case report outlines the variability in different strains of cannabis and stresses the importance of further research into cannabis allergen identification. Multiple cannabis allergens should be included and incorporated into commercial extracts when they become routinely available.


2009 ◽  
Vol 123 (2) ◽  
pp. S169-S169
Author(s):  
S. Holding ◽  
S. Khan ◽  
P.C. Doré ◽  
W.A.C. Sewell
Keyword(s):  

2017 ◽  
Vol 164 (1) ◽  
pp. 58-60 ◽  
Author(s):  
Ignazio Cirillo ◽  
F Gallo ◽  
G Ciprandi

IntroductionProviding evidence of sensitisation is the formal requirement for allergy diagnosis. The aim of this study was to evaluate whether spirometry may be able to predict sensitisation in a representative cohort of Italian Navy military personnel.Methods2043 (1875 men, 168 women, mean age 28.35±11.6 years) Italian Navy military personnel were enrolled into this study. Spirometry and skin prick testing were performed to predict sensitisation.ResultsSensitisation, assessed by skin prick test, was documented in 658 (32.2%) subjects. Impaired forced expiratory flow at the 25% and 75% of the pulmonary volume (FEF25–75) as demonstrated on spirometry was detected in 82 subjects, of whom 69 were sensitised (P<0.0001). Impaired FEF25–75 was significantly associated with sensitisation (OR 7.43; 95% CI 4.04 to 14.66; P<0.0001).DiscussionThe findings of this study suggest that impaired FEF25–75 may predict sensitisation in this cohort of Italian Navy personnel. This outcome is relevant in the military medical setting, as it could allow early identification of subjects with subclinical asthma.


2021 ◽  
Vol 42 (4) ◽  
pp. 283-292 ◽  
Author(s):  
Michael T. Werner ◽  
John V. Bosso

Background: Only a fraction of patients with allergic rhinitis receive allergen-specific immunotherapy (AIT). AIT is most commonly delivered subcutaneously in a series of injections over 3‐5 years. Common obstacles to completing this therapy include cost and inconvenience. Intralymphatic immunotherapy (ILIT) has been proposed as a faster alternative, which requires as few as three injections spaced 4 weeks apart. Objective: This systematic review and meta-analysis evaluated the current evidence that supports the use of ILIT for allergic rhinitis. Methods: Clinical trials were identified in the published literature by using an electronic search strategy and were evaluated by using a risk of bias tool. Treatment outcome (symptom scores, medication scores, and combined symptom and medication scores) and provocation testing results (nasal provocation and skin-prick testing) were included in a meta-analysis of standardized mean difference with subgrouping by using a random-effects model. Overall adverse event rates were tabulated, and overall risk ratios were calculated by using a random-effects model. Results: We identified 17 clinical trials that met eligibility criteria. The standardized mean difference of ILIT on the symptom and medication score was ‐0.72 (95% confidence interval [CI], ‐0.98 to ‐0.46; p < 0.0001) (n = 10). The standardized mean difference of ILIT on nasal provocation and skin-prick testing was ‐1.00 (95% CI, ‐1.38 to ‐0.61; p < 0.0001) (n = 7) and ‐0.73 (95% CI, ‐0.99 to ‐0.47; p < 0.0001) (n = 7), respectively. No statistically significant heterogeneity was detected. The overall adverse event rate was 39.5% for ILIT and 23.5% for placebo. Also, 98.4% of adverse events were mild. Conclusion: Our meta-analysis demonstrated that ILIT was safe, conferred desensitization to seasonal and nonseasonal allergens, alleviated allergic rhinitis symptoms, and reduced medication use. A larger randomized, double-blind, placebo controlled trial will be necessary for wider adaptation of this form of AIT.


Allergy ◽  
2009 ◽  
Vol 64 (10) ◽  
pp. 1498-1506 ◽  
Author(s):  
L. M. Heinzerling ◽  
G. J. Burbach ◽  
G. Edenharter ◽  
C. Bachert ◽  
C. Bindslev-Jensen ◽  
...  

2008 ◽  
Vol 105 (46) ◽  
pp. 17908-17912 ◽  
Author(s):  
Gabriela Senti ◽  
Bettina M. Prinz Vavricka ◽  
Iris Erdmann ◽  
Mella I. Diaz ◽  
Richard Markus ◽  
...  

The only causative treatment for IgE-mediated allergies is allergen-specific immunotherapy. However, fewer than 5% of allergy patients receive immunotherapy because of its long duration and risk of allergic side effects. We aimed at enhancing s.c. immunotherapy by direct administration of allergen into s.c. lymph nodes. The objective was to evaluate safety and efficacy compared with conventional s.c. immunotherapy. In a monocentric open-label trial, 165 patients with grass pollen-induced rhinoconjunctivitis were randomized to receive either 54 s.c. injections with pollen extract over 3 years [cumulative allergen dose 4,031,540 standardized quality units (SQ-U)] or 3 intralymphatic injections over 2 months (cumulative allergen dose 3,000 SQ-U). Patients were evaluated after 4 months, 1 year, and 3 years by nasal provocation, skin prick testing, IgE measurements, and symptom scores. Three low-dose intralymphatic allergen administrations increased tolerance to nasal provocation with pollen already within 4 months (P < 0.001). Tolerance was long lasting and equivalent to that achievable after standard s.c. immunotherapy (P = 0.291 after 3 years). Intralymphatic immunotherapy ameliorated hay fever symptoms (P < 0.001), reduced skin prick test reactivity (P < 0.001), decreased specific serum IgE (P < 0.001), caused fewer adverse events than s.c. immunotherapy (P = 0.001), enhanced compliance (P < 0.001), and was less painful than venous puncture (P = 0.018). In conclusion, intralymphatic allergen administration enhanced safety and efficacy of immunotherapy and reduced treatment time from 3 years to 8 weeks.


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