Background: It has been suggested that atopic dermatitis (AD) is associated with impaired delta-6 desaturase activity and the subsequent altered composition of n-6 essential fatty acids (EFAs).
Objective: To investigate whether n-6 EFA deficiency accounts for AD by affecting transepidermal water loss or the immune response.
Methods: Serum levels of n-6 EFAs were measured using gas chromatography-mass spectrometry in a well-defined group of 35 children with AD (IgE level >150 U/mL); 35 age-matched children with allergic rhinitis, asthma, or both (IgE level >150 U/mL); and 31 nonatopic controls (IgE level <100 U/mL). Skin barrier function was evaluated by measuring transepidermal water loss and severity of AD by computing the Scoring Atopic Dermatitis (SCORAD) index.
Results: Atopic children had higher levels of linoleic acid (LA) and lower levels of its metabolites. Furthermore, gamma-linolenic acid to LA and dihommo-gamma-linolenic acid to LA ratios were significantly reduced in atopic patients. Transepidermal water loss and the SCORAD index were negatively correlated with serum levels of LA metabolites. There was no correlation between the SCORAD index and IgE level (P = .51) or between n-6 EFA concentrations and IgE level (P > .10).
Conclusions: Deficits in n-6 EFAs were correlated with the severity of AD by affecting skin barrier function and cutaneous inflammation. The link between impaired n-6 EFA metabolism and IgE level could not be defined.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/S1081-1206(10)60407-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
CLEC7A Knockdown Alleviates Ischemic Stroke by Inhibiting Pyroptosis and Microglia Activation.
J Integr Neurosci
December 2024
Department of Neurology, Hainan West Central Hospital, 571799 Danzhou, Hainan, China.
Background: Ischemic stroke (IS) is the leading cause of mortality worldwide. Herein, we aimed to identify novel biomarkers and explore the role of C-type lectin domain family 7 member A () in IS.
Methods: Differentially expressed genes (DEGs) were screened using the GSE106680, GSE97537, and GSE61616 datasets, and hub genes were identified through construction of protein-protein interaction networks.
Detection of anti-MGL_1304 IgE using the ImmunoCAP system for diagnosis of type I allergy to sweat.
Allergol Int
December 2024
Department of Dermatology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan; Department of Dermatology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan. Electronic address:
Background: Type I allergy to sweat is involved in the pathogenesis of atopic dermatitis (AD) and cholinergic urticaria (CholU), with MGL_1304 from Malassezia globosa being the major causative antigen. Currently, no standard diagnostic test exists for sweat allergy that uses serum.
Methods: The ImmunoCAP (iCAP) system to measure antigen-specific IgE was developed using recombinant MGL_1304 (rMGL_1304).
[Antifungal immunity in patients with chronic rhinosinusitis with nasal polyps].
Vestn Otorinolaringol
December 2024
Bashkir State Medical University, Ufa, Russia.
Objective: To evaluate the characteristics of antifungal immunity in patients with bilateral chronic rhinosinusitis with nasal polyps.
Material And Methods: The study included 74 patients with bilateral chronic rhinosinusitis with nasal polyps and a control group consisting of 30 almost healthy individuals. All patients underwent surgery and were divided into two groups: Group I - with liquid secretion (=39), Group II - with thick secretion in the paranasal sinuses (=35).
Characterization of Serum Cytokine Patterns in Frequent-Exacerbation Asthma: Implications for Phenotyping and Management.
Adv Respir Med
December 2024
Respiratory Center, Military Hospital 103, Vietnam Military Medical University, Hanoi 12100, Vietnam.
(1) Background: Asthma exacerbations represent significant clinical events, however, the underlying inflammatory mechanisms and cytokine profiles in patients with frequent exacerbations remain incompletely understood; (2) Methods: In this prospective, cross-sectional study of 120 stable asthma patients, we compared the serum concentrations of eight key cytokines (IL-4, IL-12, IL-13, IL-17, IFN-α, IFN-γ, TNF-α, and IL-1β) between two groups: 60 patients with frequent exacerbations (≥ 2 events per year) and 60 matched controls with few exacerbations (1 event per year); (3) Results: Patients with frequent exacerbations showed significantly higher serum concentrations of IL-4 and IL-13 ( < 0.05), along with an increased prevalence of allergic history and comorbidities (chronic rhinosinusitis, GERD, OSA; all < 0.05).
View Article and Find Full Text PDFIncreased Levels of Anti- Antibodies During Hospital Admission in Septic Patients.
Antibodies (Basel)
November 2024
Parasitic Immunobiology and Immunomodulation Research Group (INMUNOPAR), Complutense University, 28040 Madrid, Spain.
Background/objectives: In a previous study, we described elevated anti- IgG levels in septic patients in relation to disease severity. In this study, our objective was to analyze the evolution of anti- immunoglobulins in septic patients during hospital admission and their association with αβ and γδ T cell subsets.
Methods: We recruited 80 subjects: 40 patients with sepsis and 40 controls.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!