الفهرس 
Respiratory AllergyOnly 14 pages are availabe for public view
 |  | from | 152 |  |  |
| | | from | 152 | | |
Abstract
Pollen is one of the main reasons to cause seasonal
allergic respiratory diseases and it is influenced by multiple
risk factors. Pollens are divided into three main groups,
grass, weed and tree. Our study was conducted on 200
Egyptian patient with respiratory allergy to determine the
most prevalent allergenic pollens among these patients.
The prevalence of respiratory allergy patients was
higher among female group compared to male group.
Moreover, the percentage of patients living in urban areas
was higher than that in rural areas.
21.5 % of our patients complained of oral allergy
syndrome symptoms which depend on the cross-reactivity
between pollen allergens and food proteins.
85.5% of the total patients were positive to at least
one of the pollen allergens. We reported that 28.5% of
patients had positive SPT to Timothy grass and Maize
pollens being the most prevalent. This agreed with the fact
that grass pollen is one of the most frequent reasons for
plant related allergenic reactions worldwide.
The majority of patients with positive pollen
allergens had AR (66.8%) while (33.2%) only of asthmatics
had positive results to pollen allergens. The most prevalent
pollen in BA patients was maize pollen (26.5%), while in
AR patients was timothy grass. We also compared residency of the patients with types of pollens and reached
out that the most prevalent pollen in rural areas was
Timothy grass pollen and in urban areas was maize pollen,
which means that grass pollens, as a whole species is
prevalent throughout urban and rural areas together.
We analyzed the patients‟ symptoms and found that
peaks of allergic respiratory diseases were at January
(26.5%), December (21.5%), March (18%) and June (16%)
respectively. This came in line with the fact that the start
dates for the appearance of significant allergens is prevalent
earlier in the year (January) and in late spring and early
summer (March and June).
In our current study, the most prevalent crossreactive
food with pollens evident by SPT were orange
(12%) followed by tomato (11.5%) and soya (11%). We
demonstrated that tomato was highly cross-reactive with
timothy grass (43.5%) and maize pollen (39.1%). Orange
was highly cross-reactive with cultivated rye and Russian
thistle (33.3%).residency of the patients with types of pollens and reached
out that the most prevalent pollen in rural areas was
Timothy grass pollen and in urban areas was maize pollen,
which means that grass pollens, as a whole species is
prevalent throughout urban and rural areas together.
We analyzed the patients‟ symptoms and found that
peaks of allergic respiratory diseases were at January
(26.5%), December (21.5%), March (18%) and June (16%)
respectively. This came in line with the fact that the start
dates for the appearance of significant allergens is prevalent
earlier in the year (January) and in late spring and early
summer (March and June).
In our current study, the most prevalent crossreactive
food with pollens evident by SPT were orange
(12%) followed by tomato (11.5%) and soya (11%). We
demonstrated that tomato was highly cross-reactive with
timothy grass (43.5%) and maize pollen (39.1%). Orange
was highly cross-reactive with cultivated rye and Russian
thistle (33.3%).