Allergic Skin Manifestations: Atopic Dermatitis Today

1976 ◽  
Vol 1 (2) ◽  
pp. 22-26
Author(s):  
Robert M. Levensona
2021 ◽  
Vol 8 ◽  
Author(s):  
Ju-Yong Park ◽  
Seon-Myeong Kim ◽  
Jung-Hyun Kim

The management of canine atopic dermatitis, an allergic skin disorder, is challenging. To investigate the effect of phototherapy using a 308-nm excimer light as a topical treatment for canine atopic dermatitis, 10 dogs with canine atopic dermatitis and 10 with non-allergic skin were enrolled in this study. Phototherapy was applied every 7 days for a total of 2 months. The skin microbiome, skin barrier function, and clinical outcomes were evaluated after phototherapy. Phototherapy significantly changed the composition of the skin microbiome of dogs with atopic dermatitis and significantly increased the relative abundance of the phyla Actinobacteria and Cyanobacteria. It significantly alleviated the clinical signs of canine atopic dermatitis without serious adverse effects. Transepidermal water loss, as a measure of skin barrier function, significantly decreased after phototherapy. In addition, phototherapy increased microbial diversity and decreased the relative abundance of Staphylococcus pseudintermedius associated with the severity of canine atopic dermatitis. These results suggest that the excimer light therapy is a suitable and safe therapeutic option for canine atopic dermatitis, which is also a spontaneous animal model of atopic dermatitis.


Author(s):  
Vera P. Vavilova ◽  
Alexander M. Vavilov ◽  
Sofia A. Tsarkova ◽  
Irina A. Nechaeva ◽  
Ekaterina Iu. Burmistrova ◽  
...  

Background. At present, due to high prevalence of allergic diseases which start in early childhood, the search for new prevention and treatment methods is in great demand. Aim. To study the effectiveness of the Russian-produced enterosorbent colloidal silicon dioxide in the treatment of patients with food allergies combined with atopic dermatitis and gastrointestinal manifestations. Materials and methods. An open, randomized, comparative clinical study of the enterosorbent (colloidal silicon dioxide) effectiveness has been conducted in parallel groups of infants and preschool children with food allergy skin and gastrointestinal manifestations. The main groups (1 67 children with food allergies and atopic dermatitis skin manifestations, 3 60 children with food allergies and gastrointestinal manifestations) received, along with basic medication, colloidal silicon dioxide enterosorbent day at an age-specific dosage twice a for 1014 days. Control groups (2 60 children with food allergies and atopic dermatitis skin manifestations, 4 60 children with food allergies and gastrointestinal manifestations) did not receive enterosorbent. All children underwent a clinical, functional and laboratory status assessment, including medical records analysis, a pediatrician clinical examination, narrow specialists (allergist-immunologist) examination, laboratory and instrumental research. The treatment effectiveness was being evaluated on the 14th day after the initiation of therapy and after 30 days. The therapy effectiveness was assessed based on regression of skin syndrome clinical and gastrointestinal manifestations, intoxication syndrome and laboratory parameters (IgE, hemogram eosinophilia duration). The study was conducted from 2017 to 2019. On the basis of LLC Modern Medical Technologies Clinics (Kemerovo). Results. Therapy with colloidal silicon dioxide increases the significance of food allergy skin manifestations positive dynamics, which makes it possible to reduce the volume of medication and the duration of topical glucocorticosteroids use to 5.340.35 days, in the compared group 10.520.85 days (p=0.002). All patients with food allergy combined with atopic dermatitis in the main and control groups noted positive clinical dynamics, appearing as decrease in the skin inflammatory reaction area and intensity. However, the of colloidal silicon dioxide use accelerates skin syndrome condition normalization significantly (group 1 skin syndrome persisted in 2.92.0% after 14 days, in group 2 18.34.9%; p=0.003). Colloidal silicon dioxide use accelerates humoral immunity state normalization (IgE) and peripheral blood parameters (hemogram eosinophilia). Colloidal silicon dioxide therapy accelerates food allergy gastrointestinal manifestations positive dynamics in children. Two weeks after the sorbent therapy started, gastrointestinal tract lesions symptoms frequency is less than in patients in the compared group. Diarrhea frequency before treatment started was 48.36.5%, 45.06.4% in the compared groups. After two weeks it decreased to 6.73.2% with the Polisorb therapy and to 16.64.8% in the compared group (p=0.003). Abdominal pain was noted by patients of both groups equally often before the study began. After 2 weeks, abdominal pain was noted by ten percent 10.03.9% of patients taking colloidal silicon dioxide and 25.05.6% of the compared group (p=0.009). Conclusion. Taking into account the composition of the colloidal silicon dioxide, it makes sense to include this medication in childrens food allergies complex treatment starting from infancy, which contributes to a more rapid relief of gastrointestinal system damage symptoms, life quality improvement for children and their parents, and decrease in medication load. When using colloidal silicon dioxide in children with food allergies, a faster dynamics of disease symptoms relief (p=0.003) was noted, which allows us to conclude that it is highly effective in the treatment of allergic diseases associated with food sensitization.


2005 ◽  
Vol 41 (2) ◽  
pp. 92-97 ◽  
Author(s):  
Rosanna Marsella

The introduction of calcineurin inhibitors represents a major addition to the armamentarium of drugs available to veterinary clinicians for the management of allergic skin diseases. Both cyclosporine and tacrolimus have been proven to be well tolerated and effective for the treatment of atopic dermatitis in dogs. Although broad spectrum in their mechanism of action, they lack the major adverse effects of glucocorticoids and provide an appealing alternative to traditional therapies. The purposes of this article are to review clinically relevant information regarding these agents and to provide tips for maximizing the benefit obtained from these therapies.


2017 ◽  
Vol 12 (2) ◽  
pp. 30
Author(s):  
Alshammari Fanar Hamad ◽  
Jong-Hun Han ◽  
Irfan Ahmad Rather

<p>Atopic dermatitis is a skin disease characterized by allergic skin inflammation, redness and itching. The animal model is necessary to find out new drugs. The DNCB-induced animal model of atopic dermatitis includes the following steps: 1) Selection of animals; 2) Shaving of dorsal skin; 3) Applying DNCB once in 24 hours for three days; 4) Monitoring the development of atopy on day 4 post DNCB application. Further, the efficacy of reference drug can be determined by applying on the atopy skin, depends on the nature and aim of the work.</p><p><strong>Video Clip of Methodology</strong>: 8 min   <a href="https://www.youtube.com/v/XbFt1bOnulc">Full Screen</a>   <a href="https://www.youtube.com/watch?v=XbFt1bOnulc">If Failed</a></p>


2017 ◽  
Vol 14 (2) ◽  
pp. 76-81
Author(s):  
O G Elisyutina ◽  
A O Litovkina ◽  
E S Fedenko

Atopic dermatitis - chronic allergic skin inflammatory disease with genetic predisposition, dysbalance of immune response, dysfunction of an epidermal barrier and influence of various exogenous and endogenous factors. Epidermal barrier dysfunction leads to rising of permeability of a skin for allergens, microbs and nonspecific stimuli, as well as to sensitivity to various external influences. Clinically these implications are shown by skin xerosis symptoms therefore. According to modern clinical guidelines, the moisturizing agents, so called emollients, have to be used at all disease stages. Own data on use of modern skin care series Atopic® in complex therapy of atopic dermatitis patients are presented in the article.


2020 ◽  
Vol 5 (44) ◽  
pp. eaaw2938 ◽  
Author(s):  
Almog Bitton ◽  
Shmuel Avlas ◽  
Hadar Reichman ◽  
Michal Itan ◽  
Danielle Karo-Atar ◽  
...  

IL-13 and IL-4 are potent mediators of type 2–associated inflammation such as those found in atopic dermatitis (AD). IL-4 shares overlapping biological functions with IL-13, a finding that is mainly explained by their ability to signal via the type 2 IL-4 receptor (R), which is composed of IL-4Rα in association with IL-13Rα1. Nonetheless, the role of the type 2 IL-4R in AD remains to be clearly defined. Induction of two distinct models of experimental AD in Il13ra1−/− mice, which lack the type 2 IL-4R, revealed that dermatitis, including ear and epidermal thickening, was dependent on type 2 IL-4R signaling. Expression of TNF-α was dependent on the type 2 IL-4R, whereas induction of IL-4, IgE, CCL24, and skin eosinophilia was dependent on the type 1 IL-4R. Neutralization of IL-4, IL-13, and TNF-α as well as studies in bone marrow–chimeric mice revealed that dermatitis, TNF-α, CXCL1, and CCL11 expression were exclusively mediated by IL-13 signaling via the type 2 IL-4R expressed by nonhematopoietic cells. Conversely, induction of IL-4, CCL24, and eosinophilia was dependent on IL-4 signaling via the type 1 IL-4R expressed by hematopoietic cells. Last, we pharmacologically targeted IL-13Rα1 and established a proof of concept for therapeutic targeting of this pathway in AD. Our data provide mechanistic insight into the differential roles of IL-4, IL-13, and their receptor components in allergic skin and highlight type 2 IL-4R as a potential therapeutic target in AD and other allergic diseases such as asthma and eosinophilic esophagitis.


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