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International Archives of Allergy and Immunology

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https://www.readbyqxmd.com/read/27907922/distinct-contributory-factors-determine-basophil-allergen-sensitivity-in-grass-pollen-rhinitis-and-in-anaphylactic-wasp-venom-allergy
#1
Peter Korošec, Mira Šilar, Peter Kopač, Renato Eržen, Mihaela Zidarn, Mitja Košnik
BACKGROUND: We sought to determine whether basophil-allergen sensitivity could be transferred to donor basophils by passive IgE sensitisation in allergic rhinitis and anaphylactic Hymenoptera venom hypersensitivity. METHODS: We studied 15 wasp venom-, 19 grass pollen- and 2 house dust mite-allergic patients, 2 healthy donors, and 8 wasp venom-allergic donors. In all subjects, we first evaluated the initial basophil response to wasp venom, grass pollen, or house dust mite allergen...
December 2, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27907915/parasitic-infections-in-children-with-chronic-spontaneous-urticaria
#2
Ebru Arik Yilmaz, Betul Karaatmaca, Cansin Sackesen, Umit Murat Sahiner, Ozlem Cavkaytar, Bulent E Sekerel, Ozge Soyer
BACKGROUND: Parasites have been proposed to be an underlying cause of chronic spontaneous urticaria (CSU) in childhood, but a clear causal relationship between them has not been established. This study aimed to investigate the prevalence of parasitic infection-related CSU (PIRCSU) in children and to determine the factors associated with PIRCSU. METHOD: Data from 211 children with CSU were analyzed. Information on stool examination, antiparasitic medications received, and response to treatment was recorded...
December 2, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27902985/disease-manifestation-and-inflammatory-activity-as-modulators-of-th17-treg-balance-and-rorc-foxp3-methylation-in-systemic-sclerosis
#3
Giovanni Almanzar, Matthias Klein, Marc Schmalzing, Deborah Hilligardt, Nady El Hajj, Hermann Kneitz, Vanessa Wild, Andreas Rosenwald, Sandrine Benoit, Henning Hamm, Hans-Peter Tony, Thomas Haaf, Matthias Goebeler, Martina Prelog
BACKGROUND: There is much evidence that T cells are strongly involved in the pathogenesis of localized and systemic forms of scleroderma (SSc). A dysbalance between FoxP3+ regulatory CD4+ T cells (Tregs) and inflammatory T-helper (Th) 17 cells has been suggested. METHODS: The study aimed (1) to investigate the phenotypical and functional characteristics of Th17 and Tregs in SSc patients depending on disease manifestation (limited vs. diffuse cutaneous SSc, dcSSc) and activity, and (2) the transcriptional level and methylation status of Th17- and Treg-specific transcription factors...
December 1, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27902982/limitation-of-simultaneous-analysis-of-t-cell-receptor-and-%C3%AE%C2%BA-deleting-recombination-excision-circles-based-on-multiplex-real-time-polymerase-chain-reaction-in-common-variable-immunodeficiency-patients
#4
Faranaz Atschekzei, Fareed Ahmad, Torsten Witte, Roland Jacobs, Reinhold E Schmidt
AIM OF STUDY: We used a triplex real-time polymerase chain reaction (PCR) to classify our common variable immunodeficiency (CVID) patients into distinct groups according to the amount of their T-cell receptor excision circles (TRECs) and κ-deleting recombination excision circles (KRECs). MATERIALS AND METHODS: TREC and KREC analysis was performed using a multiplex real-time PCR assay. The T- and B-lymphocyte subsets were measured by flow cytometry. RESULTS: The copy number of TRECs and KRECs was significantly reduced in CVID patients compared to healthy controls...
December 1, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27902981/calcitriol-reduces-eosinophil-necrosis-which-leads-to-the-diminished-release-of-cytotoxic-granules
#5
Caroline Ethier, Yingqi Yu, Lisa Cameron, Paige Lacy, Francis Davoine
BACKGROUND: Asthma severity and eosinophilia correlate with a deficiency in vitamin D and its active metabolite calcitriol. Calcitriol modulates numerous leukocyte functions, but its effect on eosinophils is not fully understood. We postulated that calcitriol exerts a direct effect on eosinophil biology by modulating cell survival. METHODS: Purified peripheral blood eosinophils from atopic donors were incubated in the presence of calcitriol for up to 14 days with or without IL-5...
December 1, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27902979/altered-systemic-adipokines-in-patients-with-chronic-urticaria
#6
Hoang Kim Tu Trinh, Duy Le Pham, Ga-Young Ban, Hyun-Young Lee, Hae-Sim Park, Young-Min Ye
BACKGROUND: Increasing evidence suggests that adipokines affect immune responses and chronic urticaria (CU) is associated with an altered immune response related to chronic systemic inflammation. Our objectives were to investigate whether adipokines are involved in CU pathogenesis and to outline relationships between adipokines and urticaria severity and quality of life. METHODS: Serum adiponectin, leptin, lipocalin-2 (LCN2), interleukin (IL)-10, IL-6, and tumor necrosis factor (TNF)-α concentrations were measured by enzyme-linked immunosorbent assays in 191 CU patients and 89 healthy controls...
December 1, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27902978/the-efficacy-of-sublingual-immunotherapy-for-allergic-rhinitis-may-vary-with-the-time-of-day
#7
Satoshi Igarashi, Keisuke Suzuki, Yuki Nakamura, Kayoko Ishimaru, Chiharu Fukano, Keisuke Masuyama, Katsuyo Ohashi-Doi, Atsuhito Nakao
BACKGROUND: Sublingual immunotherapy (SLIT) is a safe and effective treatment for allergic rhinitis (AR). However, many issues regarding SLIT remain to be resolved, including the optimal timing of administration. This study investigated the effect of time of day on SLIT efficacy with the goal of optimizing the therapeutic outcome. METHODS: We performed prophylactic SLIT at different times of day (10 a.m. or 10 p.m.) in 2 mouse models of AR: an ovalbumin (OVA)-induced AR model and Cry j 1-induced AR model, and compared the effects...
December 1, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27846634/positive-cd63-basophil-activation-tests-are-common-in-children-with-chronic-spontaneous-urticaria-and-linked-to-high-disease-activity
#8
Elena Netchiporouk, Linda Moreau, Elham Rahme, Marcus Maurer, Duncan Lejtenyi, Moshe Ben-Shoshan
BACKGROUND: The basophil activation test (BAT) using CD63 expression is a sensitive and specific tool for the diagnostic workup of autoimmune chronic spontaneous urticaria (CSU). The definition of a positive BAT is directly dependent on the reference range and the cutoff values established in control populations. As of now, the pediatric reference range and cutoff values of the CD63 BAT remain to be established. METHODS: In this study, we analyzed CD63 expression in 80 children (1-17 years old) without chronic urticaria (i...
November 16, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27846627/targeting-the-t-helper-2-inflammatory-axis-in-atopic-dermatitis
#9
Adriana S Moreno, Roderick McPhee, Luisa Karla Arruda, Michael D Howell
Atopic dermatitis (AD) is a chronic inflammatory skin disease that affects up to 25% of children and 10% of adults. The skin of patients with moderate to severe AD is characterized by significant barrier disruption and T helper 2 (Th2)-driven inflammation, which are thought to play a significant role in the pathogenesis of AD. Current management of AD is aimed at suppressing the inflammatory response and restoring the barrier function of the skin, reducing exacerbations, and preventing secondary skin infections...
November 16, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27780168/specific-antibodies-for-the-detection-of-alternaria-allergens-and-the-identification-of-cross-reactive-antigens-in-other-fungi
#10
Teresa E Twaroch, Mirela Curin, Katja Sterflinger, Margit Focke-Tejkl, Ines Swoboda, Rudolf Valenta
BACKGROUND: The mould Alternaria alternata is an important source of respiratory allergens. A. alternata extracts show great variations regarding allergenic potency. The aim of this study was to generate antibody probes specific for important Alternaria allergens and to use them to study allergen expression, depending on different culture conditions, as well as to search for cross-reactive allergens in other mould species. METHODS: Synthetic peptides from antigenic regions of A...
October 26, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27771694/activation-of-tryptophan-and-phenylalanine-catabolism-in-the-remission-phase-of-allergic-contact-dermatitis-a-pilot-study
#11
Auksė Zinkevičienė, Denis Kainov, Irutė Girkontaitė, Eglė Lastauskienė, Violeta Kvedarienė, Yu Fu, Simon Anders, Vidya Velagapudi
BACKGROUND: Allergic contact dermatitis (ACD) is an inflammatory skin disease caused by repeated skin exposure to contact allergens. The severity and duration of this disease are associated with many different factors. Some of these factors may represent markers for monitoring disease activity and the individual response to an intervention. METHODS: We used a targeted metabolomics approach to find such factors in the serum of individuals with ACD. Metabolomics profiles were examined and compared in the acute phase of the disease and also in the absence of disease activity...
October 22, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27685423/secondary-combined-immunodeficiency-in-pediatric-patients-after-the-fontan-operation-three-case-reports
#12
Eva Hlavackova, Martin Liska, Hana Jicinska, Jiri Navratil, Jiri Litzman
The Fontan operation or total cavopulmonal connection (TCPC) is a palliative surgical correction of rare and complex inborn cardiac malformations that are characterized by univentricular circulation. Protein-losing enteropathy (PLE) develops in 4-13% of patients after the Fontan procedure. Fontan-related PLE leads to secondary combined immunodeficiency marked by hypogammaglobulinemia and predominantly CD4+ lymphocytopenia. Here, we present 3 case reports of patients with secondary immunodeficiency after the Fontan operation...
September 30, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27685197/follow-up-of-venom-immunotherapy-on-flow-cytometry-and-definition-of-a-protective-index
#13
Jean Sainte-Laudy, François Touraine, Delphine Cluzan, François Belle Moudourou
BACKGROUND: A major problem of venom-specific immunotherapy (VIT) is the absence of reliable parameters for deciding treatment discontinuation. AIM OF THE STUDY: Intracutaneous tests (ICTs), the basophil activation test (BAT), specific IgEs (sIgEs) and blocking factor (BF) activity were measured during VIT. We made an evaluation by means of a protective index (PI) including ICT, BAT and BF values. MATERIAL AND METHODS: A population of 45 patients who had experienced a systemic reaction after an insect sting were tested before VIT (T0), at 1 week (T1w), at 10 weeks (T10w) and at 21 weeks (T21w), and, for a subgroup of 17 patients, at 3-5 years (T3-5y)...
September 30, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27642756/on-peptides-and-altered-peptide-ligands-from-origin-mode-of-action-and-design-to-clinical-application-immunotherapy
#14
Martín Candia, Bernhard Kratzer, Winfried F Pickl
T lymphocytes equipped with clonotypic T cell antigen receptors (TCR) recognize immunogenic peptides only when presented in the context of their own major histocompatibility complex (MHC) molecules. Peptide loading to MHC molecules occurs in intracellular compartments (ER for class I and MIIC for class II molecules) and relies on the interaction of the respective peptides and peptide binding pockets on MHC molecules. Those peptide residues not engaged in MHC binding point towards the TCR screening for possible peptide MHC complex binding partners...
September 20, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/26986631/acknowledgement-to-the-reviewers
#15
(no author information available yet)
No abstract text is available yet for this article.
March 17, 2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27838693/management-of-hypersensitivity-reactions-to-proton-pump-inhibitors-a-retrospective-experience
#16
Seçil Kepil Özdemir, Ferda Öner Erkekol, Derya Ünal, Suna Büyüköztürk, Aslı Gelincik, Adile Berna Dursun, Gül Karakaya, Sevim Bavbek
BACKGROUND: We previously reported perfect specificity and low sensitivity of skin tests in proton pump inhibitor (PPI)-induced immediate hypersensitivity reactions in a prospective multicenter study. Here, in a retrospective study, we aimed to further evaluate the diagnostic workup procedures and characteristics of the patients with suspected PPI hypersensitivity. METHODS: This national multicenter study was conducted as a retrospective chart review of patients with a history of PPI-induced immediate hypersensitivity reaction...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27838690/glutamine-prevents-late-phase-anaphylaxis-via-mapk-phosphatase-1-dependent-cytosolic-phospholipase-a2-deactivation
#17
Hae-Kyoung Kim, Chang-Ho Song, Yun-Soo Bae, Suhn-Young Im, Hern-Ku Lee
BACKGROUND: Cytosolic phospholipase A2 (cPLA2) plays a key role in the development of late-phase anaphylaxis. L-Glutamine (Gln), a nonessential amino acid, has anti-inflammatory activity via inhibiting cPLA2. METHODS: We used a penicillin-induced murine model of anaphylaxis, and late-phase anaphylaxis was quantified by measuring the increase in the hematocrit (Ht) value. Various inhibitors, small interfering RNA, and knockout mice were used in inhibition experiments...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27829250/contents-vol-170-2016
#18
(no author information available yet)
No abstract text is available yet for this article.
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27820941/functions-of-exosomes-and-microbial-extracellular-vesicles-in-allergy-and-contact-and-delayed-type-hypersensitivity
#19
Katarzyna Nazimek, Krzysztof Bryniarski, Philip W Askenase
Extracellular vesicles, such as exosomes, are newly recognized intercellular conveyors of functional molecular mechanisms. Notably, they transfer RNAs and proteins between different cells that can then participate in the complex pathogenesis of allergic and related hypersensitivity responses and disease mechanisms, as described herein. This review highlights this important new appreciation of the in vivo participation of such extracellular vesicles in the interactions between allergy-mediating cells. We take into account paracrine epigenetic exchanges mediated by surrounding stromal cells and the endocrine receipt of exosomes from distant cells via the circulation...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27820937/immunosuppressive-activity-of-abatacept-on-circulating-t-helper-lymphocytes-from-juvenile-idiopathic-arthritis-patients
#20
Laura Maggi, Rolando Cimaz, Manuela Capone, Veronica Santarlasci, Maria Caterina Rossi, Alessio Mazzoni, Gianni Montaini, Ilaria Pagnini, Teresa Giani, Gabriele Simonini, Cristina Scaletti, Francesco Liotta, Enrico Maggi, Francesco Annunziato, Lorenzo Cosmi
BACKGROUND: Abatacept is used in the treatment of juvenile idiopathic arthritis (JIA) patients, but the activity of the drug on T helper cell function is not yet fully known. METHODS: The ability of abatacept to affect cytokine production in vitro and the proliferative response to both recall antigens and polyclonal stimulation was firstly assessed in healthy donors. Then, 10 JIA patients who were due to start abatacept treatment were recruited and longitudinally evaluated during the first 90 days of therapy...
2016: International Archives of Allergy and Immunology
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