scholarly journals The Role of Allergen Sensitivity on Pityriasis Alba

Author(s):  
Emine Ece Özdoğru ◽  
Melis Gönülal

Objective: Pityriasis alba is mostly seen in individuals with a history of atopy, although it may occur in non-atopic individuals. Despite many hypothesis, no certain etiologic factor for pitryriasis alba has been determined. We aimed to investigate the roles of environmental factors, inhalant and food allergy sensitization in its etiopathogenesis. Methods: We noted patients’ and controls’ age, gender, education level of parents, xerosis, hand soap type, bathing frequency, bath water temperature, wind condition in the location, using sun screen cream, sun exposure time, results of inhalant allergen and food allergen testing. Inhalant allergy test was carried out through a skin prick test for children older than two years, and a food allergy test was carried out through prick to prick test for children of all ages. Results: The findings showed that there were significant relationships between pityriasis alba and xerosis, inhalant allergen sensitization (p<0.0001, p=0.009, respectively). Conclusion: We conclude that xerosis and inhalant allergen sensitization are associated with pityriasis alba. Therefore, we think that clinicians should suggest moisturizers to patients with pityriasis alba and make their inhalant allergy tests in clinical follow-up of patients.

2020 ◽  
Vol 44 (3) ◽  
pp. 127-132
Author(s):  
Ivana Banić ◽  
Mirjana Turkalj ◽  
Boro Nogalo ◽  
Rajka Lulić Jurjević ◽  
Davor Plavec ◽  
...  

Health care workers (HCW) are at increased risk of a latent tuberculosis infection (LTBI) due to occupational exposure to Mycobacterium tuberculosis. In order to investigate the mutual influence of a TH1 type immune response caused by LTBI and T helper 2 (TH2) type immune response caused by allergy, we conducted a study examining the prevalence of common inhaled allergen sensitization in the HCW population with different levels of exposure to tuberculosis (high and low). HCW with possible exposure to tuberculosis (TB) were tested with QuantiFERON-TB Gold (QFT-G) and tuberculin skin test (TST), while skin prick test (SPT) was performed for inhaled allergens. The antigen (Ag) response at QFT-G was inversely correlated with participants` allergy anamnesis (p= 0.039). Sensitization to inhaled allergens (positive SPT and number of positive allergens at SPT) was more prominent in the low exposure group (p= 0.006 and p= 0.0065, respectively). Ag response at QFT-G test was significantly higher in participants with no medical history of allergy (p= 0.048). Our results demonstrate that exposure to TB and LTBI are associated with inhaled allergen sensitization in HCW, possibly inhibiting allergic sensitization by mediating the T-helper type 1 (Th1) immune response.


2020 ◽  
Vol 14 (1) ◽  
pp. 46-52
Author(s):  
Akefeh Ahmadiafshar ◽  
Mohammad Vafaee-Shahi ◽  
Saeide Ghasemi ◽  
Fariba Khosroshahi ◽  
Aina Riahi

Background: Headache and particularly migraine headaches are considered as a debilitating disease worldwide that can adversely affect the quality of life of children and adults. Various factors can play a critical role in the development of migraine headache attacks. The food allergens are considered as important factors. This study aimed to determine the frequency of food allergy in children with migraine headaches. Methods: Forty patients aged <16 years with a migraine headache were entered into the study. A questionnaire was provided in which data on demographic information and skin test results for various allergens were recorded. Dietary allergies were defined based on a positive skin test plus a patient's history of food allergies. The severity of migraine was evaluated using the Migraine disability assessment score (MIDAS) questionnaire. Results: The present study showed 32.5% of our participants had a food allergy. No significant association was detected between sex (p=58) and age (p=0.14) with food allergy. However, the frequency of food allergy was significantly higher in patients aged ≥12 years old (44.4%) than those aged <12 (22.7%). A significant relationship was found between the number of attacks after prophylaxis and the frequency of food allergies (p=0.032). Individuals with lower attacks had a lower food allergy. Conclusion: Our findings revealed that about one-third of children with a migraine headache had a food allergy. This frequency was significantly higher in children with migraines than that of the general population based on the results of previous studies. It is recommended that these patients receive a skin allergy test while preparing a strong history of food allergies or when the frequency of migraine attacks does not decrease significantly despite proper prophylaxis.


2019 ◽  
Vol 31 (9-10) ◽  
pp. 281-8
Author(s):  
Ariyanto Harsono ◽  
Gunadi Santosa ◽  
Makmuri M. S.

We obtained 28 patients with asthma bronchiole in this study. The presumptive diagnosis of allergy was made on the basis of history and physical examination. The positive result of the skin test to inhalant extracts and positive history of inhalant allergy add a confirmatory evidence in the diagnosis of inhalant allergy. The diagnosis of food allergy was judged by positive result in the provocation test. This study provided 15 patients with food allergy and 13 patients with food and inhalant allergy. House dust a1Jd mites were the most prevalent positive result in the skin test. While in the provocation test, egg ·and milk were found as the most prevalent food causing symptoms of allergy. The skin test predicted the atopy with an efficiency of 53.5%, While Phadiatop Paediatric predicted the atopy with an efficiency of 82.1 %. We concluded, as a screening procedure in allergy, the Phadiatop Paediatric is better than the skin test. Nevertheless the skin test has its superiority in the development of logical environmental controls and as a guide to immunotherapy in inhalant allergy.


Author(s):  
Serdar Al ◽  
Suna Asilsoy ◽  
Özden Anal ◽  
Dilek Tezcan ◽  
Seda Şirin Köse ◽  
...  

Atopic dermatitis is a chronic, recurrent inflammatory skin disease usually caused by genetic predisposition, immune dysregulation, epidermal barrier dysfunction and interaction of environmental factors. Atopic dermatitis is part of atopic march and is often accompanied by food allergy. Aeroallergenic sensitization at early age is not an expected finding. Here, we present five cases with moderate-severe atopic dermatitis during infancy, in whom food allergy was detected and the symptoms improved only partially despite elimination and treatment. Sensitization was investigated in patients with a history of intense exposure to cats by specific IgE and skin prick test in infants with atopic dermatitis who had food allergy and persistant findings. Egg allergy was detected in four of the cases, wheat allergy in one. Cat allergy was present in all. Elimination diet was started in all cases. When exposure to cats was reduced, a marked improvement in the findings of atopic dermatitis was observed in all cases. Allergic diseases are increasing day by day. Unexpected aeroallergenic sensitization is now more common in the early stages of life. Allergic patients, regardless of age, should be questioned in detail for aeroallergen exposure. If it is detected; necessary preventive measures should be taken.


2021 ◽  
Vol 147 (2) ◽  
pp. AB116
Author(s):  
Stephania Lairet ◽  
Stanislav Ivanov ◽  
Jose Calderon ◽  
Vivian Hernandez-Trujillo

2015 ◽  
Vol 8 ◽  
pp. A7 ◽  
Author(s):  
Sungryeol Kim ◽  
Kyung Hee Park ◽  
Jung-Won Park ◽  
Jae-Hyun Lee ◽  
Hye Jung Park ◽  
...  

PEDIATRICS ◽  
1989 ◽  
Vol 84 (2) ◽  
pp. 199-204
Author(s):  
Martin A. Weinstock ◽  
Graham A. Colditz ◽  
Walter C. Willett ◽  
Meir J. Stampfer ◽  
Ben A. Bronstein ◽  
...  

Despite strong evidence that sun exposure causes malignant melanoma, the details of this relation remain unclear. A nested case-control analysis was conducted within the Nurses' Health Study cohort to examine the relation between timing of severe sun exposure and incidence of melanoma. The subjects were 130 white women aged 38 to 65 years with confirmed cutaneous melanoma (other than acral lentigenous) who reported no history of melanoma in first-degree relatives. The control subjects were 300 women matched by race, date of birth, and cycle of questionnaire who also reported no history of melanoma in first-degree relatives. We used conditional logistic regression to evaluate the relation of sun damage after 30 years of age and sun damage from 15 to 20 years of age to the incidence of melanoma. Blistering sunburns between 15 to 20 years of age were associated with risk of melanoma (relative risk = 2.2 for five or more burns vs none, 95% confidence interval 1.2 to 3.8). This association persisted when a history of burns after 30 years of age was controlled in the analysis. No material association was found between blistering sunburns after 30 years of age and melanoma. Similarly, a more equatorial latitude of residence between 15 and 20 years of age was positively associated with melanoma; latitude after 30 years of age was less strongly and not significantly related to melanoma risk. Sun exposure prior to 20 years of age is more closely associated with melanoma risk than sun exposure after 30 years of age.


2000 ◽  
Vol 4 (2) ◽  
pp. 89-93 ◽  
Author(s):  
Jasdeep K. Sharma ◽  
Robert Miller ◽  
Scott Murray

Background: Chronic urticaria is a common condition and is a source of great frustration to patients. It has been suggested that there may be differences among physicians in their approach to this common clinical entity. Objective and Method: A questionnaire was distributed Canada-wide to allergists, dermatologists, and a selection of practitioners with an interest in alternative medicine. The survey included questions on demographics, epidemiology, causative factors, diagnostic methods, therapeutic strategies, follow-up advice, and efficacy of therapies, with emphasis on personal experience. Results: The response rates of allergists and dermatologists were 31% and 36%, respectively. There was wide representation from all regions of Canada and from physicians from all age groups, both genders, different types of practice, and years in practice. The reported incidence per month was 13 and 4 patients for allergists and dermatologists, respectively. The prevalence was 199 and 44 patients by allergists and dermatologists, respectively. Comparison of causative factors showed differences in the experiences of the two groups. Diagnostic investigations were requested in a similar pattern with respect to timing. The specific tests ordered by the groups showing statistical difference were complete blood count (CBC), differential, C4 complement, antinuclear antibodies, and IgE antibody assay. Allergists chose the skin prick test (100%) as the most important allergy test. Dermatologists ranked skin prick (50%), radioallergosorbent test (RAST) (20%), and skin patch (30%) as the most important tests. The top six choices of pharmaceutical therapies chosen by the groups were similar, but in a slightly different order. The responders ranked their personal selection of antihistamines according to effectiveness. Hydroxyzine (Atarax®) and cetirizine (Reactine®, Allegra®) were selected as first and second most effective agents by both groups. The results also show effective experience by both groups with nonsedating and sedating antihistamines. Also, doxepin, ketotifen, and cimetidine are used frequently by both groups. The experience of dermatologists in Canada with respect to other modalities including psoralen ultraviolet A (PUVA) therapy, danazol, chelation, calcium channel blockers, and acyclovir is limited and efficacy is ranked either neutral or ineffective. Allergists reported even less experience with these therapies. Conclusion: Allergists and dermatologists across Canada show interesting similarities and differences in their practical approach to the management of chronic urticaria. With the sharing of this information, these two specialties will be better equipped to effectively manage patients suffering from chronic urticaria.


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