A Case of Occupational Rhinitis Induced by Maize Pollen Exposure in a Farmer: Detection of IgE-Binding Components

Sung, Se Yong; Lee, Won Yeon; Yong, Suk Joong; Shin, Kye Chul; Park, Hae‐Sim; Kim, Hyun Mi; Kim, Sang-Ha

doi:10.4168/aair.2012.4.1.49

Cited by 8 publications

(10 citation statements)

References 13 publications

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“…The higher sensitization to inhalant and plant food allergens in this study compared with our study could be attributed to the studied subjects were allergic adults and all had a history of natural rubber latex allergy confirmed by a positive skin test for latex and a positive latex-specific IgE. On the other hand, similar and /or slightly higher sensitization to animal food allergens in the current study compared to Ebo et al (23) In a case of occupational rhinitis induced by maize pollen exposure in a farmer, Sung et al (24) found that the specific IgE antibodies to crude and commercial maize pollen extracts were higher in the patient than in the healthy subjects.…”

Section: Discussionsupporting

confidence: 50%

The Impact of Environmental and Agricultural Pollutants on the Prevalence of Allergic Diseases in People from Qassim , KSA

Elshabrawy¹,

Ismail²,

Hassanein³

2014

IJHS

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Background: There are multiple environmental factors that influence a sensitized (IgE antibody positive) patient's predisposition to manifest allergic symptoms following allergen exposure. The majority of allergens are known to induce morbidity with chronic symptoms such as rhinitis, pruritis, dermatitis and urticaria. Aim:To study the impact of environmental and agricultural pollutants with different pollens on the immunological, hematological and biochemical markers and to determine the prevalence of sensitization to allergens among exposed individuals as well as to identify the eliciting allergens. Subjects and Methods:Ninety six highly exposed individuals to environmental and agricultural pollution in addition to 20 as controls were selected. A solid phase enzyme-linked immunosorbent assay and the EUROLINE test kit were used for the quantitative determination of total IgE concentration and semi-quantitative in vitro assay of human IgE antibodies to some of the inhalant, ingestant and contactant allergens in serum samples, respectively. Percentage and absolute eosinophil counts and biochemical parameters were analyzed.Results: Thirteen (13.5%) out of the 96 studied highly exposed subjects were manifesting allergic symptoms. Higher significant total serum IgE levels and absolute eosinophil counts in groups 1 and 3 of the highly exposed individuals compared to the control group were found (p1=0.00, p3=0.001 and p1=0.016, p3=0.028, respectively). Higher sensitization with inhalant Timothy grass, Aspergillus fumigatus, Der. Farinae and Olive; ingestant Egg yolk, Mango, Strawberry and Codfish and with contactant Latex/plastic and Crude oil was found in the studied groups compared with the controls. Conclusion:The present data suggest that the highly exposed subjects to pollution are at high risk of developing an allergy. For the screening of those with suspected allergen sensitization, the determination of specific IgE antibodies is a suitable marker of type I allergy.

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Section: Discussionsupporting

confidence: 50%

The Impact of Environmental and Agricultural Pollutants on the Prevalence of Allergic Diseases in People from Qassim , KSA

Elshabrawy¹,

Ismail²,

Hassanein³

2014

IJHS

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“…A case of occupational rhinitis to maize pollen confirmed by nasal provocation test has been reported 3. Zea m 1 (β-expansin)3-5 has been identified as a major maize pollen allergen. Zea m 13 (poly-galacturonase) and Zea m 12 (profilin) are also pollen allergens 4.…”

Section: Discussionmentioning

confidence: 99%

Occupational Rhinoconjunctivitis due to Maize in a Snack Processor: A Cross-Reactivity Study Between Lipid Transfer Proteins From Different Cereals and Peach

Guillén

Paredes

Palacín³

et al. 2014

Allergy Asthma Immunol Res

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We report the case of a snack processor who developed occupational rhinoconjunctivitis due to maize brand exposure during the extrusion process, and who experienced abdominal pain upon drinking beer. The allergens implicated and the cross-reactivity between non-specific lipid transfer proteins (LTPs) from different cereals and peach were investigated. Skin prick tests and specific IgE to cereal flours, pulmonary functions tests and specific conjunctival and inhalation challenges to maize extract were performed. In vitro studies included IgE immunoblotting and ELISA inhibition assays. Skin prick tests with maize flour, maize brand and wheat flour extracts were positive, whereas serum specific IgE was positive only to maize flour. Specific inhalation challenge (SIC) to maize flour did not elicit an asthmatic reaction; however, conjunctival challenge test with the same extract was positive. Patient's serum recognized IgE-binding bands in the maize and beer extracts corresponding to LTPs. In the ELISA inhibition assays, a significant degree of allergenic cross-reactivity was found between maize and beer LTPs, whereas no cross-reactivity was observed between maize LTP and wheat and peach LTPs.

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“…Since allergen families are shared between maize and rice as well as between wild and cultivated grass pollen, cross-reactivities were expected [ 16 , 17 , 24 , 32 – 34 ]. However, some specific sensitization can also occur in maize pollen allergy and rather associated to occupational allergy [ 14 , 15 ]. An absence of cross-reactivity is thus in favor of a genuine specific sensitization as a consequence of a sustained and specific exposure.…”

Section: Discussionmentioning

confidence: 99%

“…Sensitization to rice and maize pollen has been clinically investigated [ 12 , 13 ]. They are often considered as an occupational allergy in farmers and field workers [ 14 – 16 ] or the result of the documented cross-reactivities with wild grasses [ 17 – 19 ]. Reported allergens for pollen of these 2 crops are listed in Table 1 .…”

Section: Introductionmentioning

confidence: 99%

High IgE sensitization to maize and rice pollen in the highlands of Madagascar

Ramavovololona¹,

Sénéchal²,

Andrianarisoa³

et al. 2014

Pan Afr Med J

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IntroductionMaize and rice are two crops constituting the main food supply in many under-developed and developing countries. Despite the large area devoted to the culture, the sensitization to the pollen from these plants is reported to be low and often considered as an occupational allergy.MethodsSixty five Malagasy pollen allergic patients were clinically and immunochemically investigated with regard to maize and rice pollen allergens. Pollen extracts were electrophoretically separated in 1 and 2 dimensions and IgE and IgG reactivities detected upon immunoblotting.ResultsWhen exploring the sensitization profile of Malagasy allergic patients to maize and rice pollen, it appears that a high proportion of these patients consulting during grass pollinating season were sensitized to both pollen as revealed by skin prick testing (62 vs. 59%) and IgE immunoblotting (85 vs. 40%). Several clinically relevant allergens were recognized by patients’ serum IgE in maize and rice pollen extracts.ConclusionThe high levels of maize and rice pollen sensitization should be related, in this tropical region, to a specific environmental exposure including i) a proximity of the population to the allergenic sources and ii) a putative exacerbating effect of a highly polluted urban atmosphere on pollen allergenicity. Cross-reactivities between wild and cultivated grasses and also between rice and maize pollen are involved as well as some specific maize sensitizations. The presence of dense urban and peri-urban agriculture, in various African regions and worldwide, could be a high environmental risk factor for people sensitive to maize pollen.

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A Case of Occupational Rhinitis Induced by Maize Pollen Exposure in a Farmer: Detection of IgE-Binding Components

Cited by 8 publications

References 13 publications

The Impact of Environmental and Agricultural Pollutants on the Prevalence of Allergic Diseases in People from Qassim , KSA

The Impact of Environmental and Agricultural Pollutants on the Prevalence of Allergic Diseases in People from Qassim , KSA

Occupational Rhinoconjunctivitis due to Maize in a Snack Processor: A Cross-Reactivity Study Between Lipid Transfer Proteins From Different Cereals and Peach

High IgE sensitization to maize and rice pollen in the highlands of Madagascar

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