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https://www.readbyqxmd.com/read/28429307/emerging-approaches-to-food-desensitization-in-children
#1
REVIEW
Ahmad Hamad, Wesley A Burks
PURPOSE OF REVIEW: The purpose of this review is to highlight the recent advances in food desensitization in children with food allergy. RECENT FINDINGS: Recent advancements in epicutaneous, sublingual, and oral immunotherapy for food allergy in the future may offer children with food allergy and their families a viable option to reduce risk or severity of anaphylaxis with phase III trials ongoing for two of these treatment modalities. Food allergy prevalence in children is estimated to be up to 8%...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28427296/predictors-of-response-to-therapy-with-omalizumab-in-patients-with-severe-allergic-asthma-a-real-life-study
#2
Maria Kallieri, Andriana I Papaioannou, Evgenia Papathanasiou, Polyxeni Ntontsi, Spyridon Papiris, Stelios Loukides
INTRODUCTION: Omalizumab is a recombinant humanized IgG1 monoclonal anti-IgE antibody, used for the treatment of severe refractory allergic asthma. However, not all patients with IgE levels within the limits of administration, respond to treatment. The aim of the present study, was to determine clinical and inflammatory characteristics that could predict response to omalizumab. METHODS: We studied retrospectively patients treated with omalizumab as per GINA guidelines in one asthma tertiary referral center...
April 21, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28423590/neutralization-of-interleukin-17-suppresses-allergic-rhinitis-symptoms-by-downregulating-th2-and-th17-responses-and-upregulating-the-treg-response
#3
Zhao Wei Gu, Yun Xiu Wang, Zhi Wei Cao
Allergic rhinitis (AR) has long been considered to predominantly involve the actions of Th2 cells, with relatively small contributions from Th1 cells. In recent years, the discovery of Th17 and regulatory T (Treg) cells has rendered the Th1/Th2 balance paradigm more complex and expanded our understanding of the pathogenesis of AR. IL-17, a key cytokine produced by Th17 cells, is known to induce allergen-specific Th2 cell activation, eosinophil and neutrophil accumulation, and serum IgE production in asthma; all of these features may play important roles in AR...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423239/a-novel-jak-inhibitor-jte-052-reduces-skin-inflammation-and-ameliorates-chronic-dermatitis-in-rodent-models-comparison-with-conventional-therapeutic-agents
#4
Atsuo Tanimoto, Yuichi Shinozaki, Yasuo Yamamoto, Yoshiaki Katsuda, Eriko Riya, Kaoru Toyoda, Kochi Kakimoto, Yukari Kimoto, Wataru Amano, Noriko Konishi, Mikio Hayashi
Janus kinases (JAKs) are required for several inflammatory cytokine signaling pathways and are implicated in the pathogenesis of chronic dermatitis, including atopic dermatitis and psoriasis. JAK inhibitors are therefore promising therapeutic candidates for chronic dermatitis. In this study, we evaluated the effects of the novel JAK inhibitor JTE-052 on inflammatory responses associated with chronic dermatitis, and compared its profile with those of conventional therapeutic agents in rodent models of chronic dermatitis...
April 19, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28418286/external-application-of-nf-%C3%AE%C2%BAb-inhibitor-dhmeq-suppresses-development-of-atopic-dermatitis-like-lesions-induced-with-dncb-ox-in-balb-c-mice
#5
Xiaoxue Jiang, Yi Lan, Bing Wei, Cailing Dai, Yaru Gu, Jun Ma, Xiaoyan Liu, Kazuo Umezawa, Yuyang Zhang
CONTEXT: Dehydroxymethylepoxyquinomicin (DHMEQ) which is originally developed as an analog of antibiotic epoxyquinomicin C is a specific and potent inhibitor of NF-κB and has been shown to possess promising potential as an anti-inflammatory and anti-tumor agent. OBJECTIVE: This study examines DHMEQ's effect on therapeutic potential for atopic dermatitis (AD)-like lesions. MATERIALS AND METHODS: AD lesions were chronically induced by the repetitive and alternative application of 2,4-dinitrochlorobenzene (DNCB) and oxazolone (OX) on ears in BALB/c mice...
June 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28416076/sweat-allergy-extrinsic-or-intrinsic
#6
REVIEW
Takaaki Hiragun, Makiko Hiragun, Kaori Ishii, Takanobu Kan, Michihiro Hide
Sweat is an exacerbation factor in atopic dermatitis (AD) in all age groups. A body core temperature elevation with sweating triggers cholinergic urticaria (CholU). We recently reported that AD symptoms are improved by tannic acid-containing spray, which suppresses the basophil histamine release induced by semi-purified sweat antigen in vitro, and by showering, which removes antigens in sweat from the skin surface. Sweat contains small amount of proteins including proteases, protease inhibitors, and anti-microbial peptides...
March 9, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28410469/18%C3%AE-glycyrrhetinic-acid-the-major-bioactive-component-of-glycyrrhizae-radix-attenuates-airway-inflammation-by-modulating-th2-cytokines-gata-3-stat6-and-foxp3-transcription-factors-in-an-asthmatic-mouse-model
#7
Seung-Hyung Kim, Jung-Hee Hong, Ji-Eun Lee, Young-Cheol Lee
18β-Glycyrrhetinic acid (18Gly), the major bioactive component of Glycyrrhizae Radix, possesses anti-ulcerative, anti-inflammatory, and other pharmacological properties. Although 18Gly is associated with immunoregulatory functions of allergic diseases, the pathophysiological mechanisms of 18Gly action in allergic inflammatory lung disease have not been examined. Moreover, there are no in vivo studies on the anti-asthmatic effects of 18Gly in allergic asthma. We investigated its effect and mechanism of action in airway inflammation in a BALB/c mouse model of allergic asthma...
March 20, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28407273/comorbidity-of-chronic-spontaneous-urticaria-and-autoimmune-thyroid-diseases-a-systematic-review
#8
REVIEW
Pavel Kolkhir, Martin Metz, Sabine Altrichter, Marcus Maurer
Chronic spontaneous urticaria (CSU) patients are widely held to often have other autoimmune disorders, including autoimmune thyroid disease. Here, we systematically evaluated the literature on the prevalence of thyroid autoimmunity in CSU and vice versa. There is a strong link between CSU and elevated levels of IgG anti-thyroid autoantibodies (AAbs), with most of a large number of studies reporting rates of ≥10%. Levels of IgG against thyroid peroxidase (TPO) are more often elevated in CSU than those of other IgG anti-thyroid AAbs (strong evidence)...
April 13, 2017: Allergy
https://www.readbyqxmd.com/read/28406319/benralizumab-as-a-potential-treatment-of-asthma
#9
Sabina Antonela Antoniu
Current anti-inflammatory asthma therapies including inhaled corticosteroids and leukotriene modifiers, are not always able to appropriately control the disease and other approaches are needed. These therapies specific target IgE (omalizumab) or IL-5 (mepolizumab). However, there is research underway investigating interleukin-based monoclonal antibodies such as benralizumab, an anti-IL-5R monoclonal antibody which is currently in phase III clinical development. Areas covered: This review summarizes the existing preclinical and clinical data of benralizumab...
April 19, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28403910/topical-application-of-jaungo-in-atopic-dermatitis-patients-study-protocol-for-a-randomized-controlled-trial
#10
Younghee Yun, Youme Ko, Jin-Hyang Ahn, Bo-Hyoung Jang, Kyuseok Kim, Seong-Gyu Ko, Inhwa Choi
BACKGROUND: Atopic dermatitis (AD) is a common pruritic inflammatory skin disease with increasing prevalence. It can manifest with many different clinical phenotypes; however, in its chronic stage, hyperpigmentation, excoriation, lichenification, and dryness are the main symptoms. Jaungo comprises two herbs, Lithospermi radix and Angelica gigantis radix, and three carrier oils, and is an approved herbal ointment for xerosis cutis in Korea. In past studies, we demonstrated that Jaungo had anti-inflammatory and antiallergic activity in in vitro and in vivo AD models; however, there are few relevant randomized controlled clinical trials on Jaungo in AD...
April 12, 2017: Trials
https://www.readbyqxmd.com/read/28401621/mouse-models-of-severe-asthma-understanding-the-mechanisms-of-steroid-resistance-tissue-remodelling-and-disease-exacerbation
#11
REVIEW
Steven Maltby, Hock L Tay, Ming Yang, Paul S Foster
Severe asthma has significant disease burden and results in high healthcare costs. While existing therapies are effective for the majority of asthma patients, treatments for individuals with severe asthma are often ineffective. Mouse models are useful to identify mechanisms underlying disease pathogenesis and for the preclinical assessment of new therapies. In fact, existing mouse models have contributed significantly to our understanding of allergic/eosinophilic phenotypes of asthma and facilitated the development of novel targeted therapies (e...
April 11, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28396318/blocking-allergic-reaction-through-targeting-surface-bound-ige-with-low-affinity-anti-ige-antibodies
#12
Ke Zhang, Jeffrey Liu, Thao Truong, Elyssa Zukin, Wendy Chen, Andrew Saxon
Allergic disorders have now become a major worldwide public health issue, but the effective treatment options remain limited. We report a novel approach to block allergic reactivity by targeting the surface-bound IgE of the allergic effector cells via low-affinity anti-human IgE Abs with dissociation constants in the 10(-6) to 10(-8) M range. We demonstrated that these low-affinity anti-IgE mAbs bind to the cell surface-bound IgE without triggering anaphylactic degranulation even at high concentration, albeit they would weakly upregulate CD203c expression on basophils...
April 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28393183/anti%C3%A2-inflammatory-effects-of-dihydromyricetin-in-a-mouse-model-of-asthma
#13
Bin Xu, Shuran Huang, Caiying Wang, Haitao Zhang, Shengcun Fang, Yingming Zhang
Dihydromyricetin (DHM) is a plant flavonoid and is the primary active ingredient isolated from the medicinal herb, Ampelopsis grossedentata. DHM has been shown to possess various pharmacological activities, including anti‑inflammatory effects. However, the possible role of DHM in asthma treatment remains to be elucidated. The present study aimed to investigate its anti‑inflammatory properties in mice with symptoms of allergic asthma. The C57BL/6 mice were sensitized and challenged with ovalbumin (OVA) to induce asthma...
April 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28385073/mentha-arvensis-essential-oil-suppressed-airway-changes-induced-by-histamine-and-ovalbumin-in-experimental-animals
#14
Shilpa Sharma, Vijaykumar P Rasal, Paragouda A Patil, Rajesh K Joshi
The present investigation aimed to evaluate the activity of the essential oil of Mentha arvensis L. on exogenously induced bronchoconstriction in experimental animals. The anti-asthmatic effect of M. arvensis essential oil (MAEO) was studied using histamine aerosol-induced bronchoconstriction in guinea pigs and ovalbumin (OVA) sensitised albino mice. Treatment with M. arvensis oil significantly (p < 0.001) increased the time of preconvulsive dyspnoea in histamine-induced guinea pigs. Oral treatment of MAEO significantly (p < 0...
April 7, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28380482/allergic-and-nonallergic-asthma-have-distinct-phenotypic-and-genotypic-features
#15
Priscila Takejima, Rosana Câmara Agondi, Helcio Rodrigues, Marcelo Vivolo Aun, Jorge Kalil, Pedro Giavina-Bianchi
BACKGROUND: Identification of asthma phenotypes enables a better understanding and management of this heterogeneous disease. Studies have reported associations between human leukocyte antigens (HLA) and asthma in different populations, but the results have been inconclusive and they have rarely considered the distinct disease phenotypes. Our objective was to characterize allergic and nonallergic asthma phenotypes and evaluate possible associations with the HLA system. METHODS: A total of 109 patients with asthma were prospectively followed during 2 years...
April 6, 2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/28376268/ahr-mediates-an-anti-inflammatory-feed-back-mechanism-in-human-langerhans-cells-involving-fc%C3%AE%C2%B5ri-and-ido
#16
Susanne Koch, Tim J Stroisch, Julia Vorac, Nadine Herrmann, Nicole Leib, Sylvia Schnautz, Helene Kirins, Irmgard Förster, Heike Weighardt, Thomas Bieber
BACKGROUND: Aryl hydrocarbon receptor (AhR), an important regulator of immune responses, is activated by UVB irradiation in the skin. Langerhans cells (LC) in the epidermis of atopic dermatitis (AD) patients carry the high affinity receptor for IgE, FcεRI, and are crucially involved in the pathogenesis of AD by inducing inflammatory responses and regulating tolerogenic processes. OBJECTIVES: We investigated AhR and AhR repressor (AhRR) expression and functional consequences of AhR activation in human ex vivo skin cells and in in vitro generated LC...
April 4, 2017: Allergy
https://www.readbyqxmd.com/read/28367714/uncovering-the-molecular-mechanism-of-anti-allergic-activity-of-silkworm-pupa-grown-cordyceps-militaris-fruit-body
#17
Ting-Feng Wu, Yu-Yi Chan, Wan-Yin Shi, Meng-Ting Jhong
Cordyceps militaris has been widely used as an herbal drug and tonic food in East Asia and has also been recently studied in the West because of its various pharmacological activities such as antitumoral, anti-inflammatory and immunomodulatory effects. In this study, we examined the molecular mechanism underlying the anti-allergic activity of ethanol extract prepared from silkworm pupa-cultivated Cordyceps militaris fruit bodies in activated mast cells. Our results showed that ethanol extract treatment significantly inhibited the release of β-hexosaminidase (a degranulation marker) and mRNA levels of tumor necrosis factor-[Formula: see text] as well as interleukin-4 in RBL-2H3 cells...
April 2, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28365087/salivary-prostaglandin-e2-role-in-tick-induced-allergy-to-red-meat
#18
Alejandro Cabezas-Cruz, Lourdes Mateos-Hernández, Jindri Ch Chmelař, Margarita Villar, José de la Fuente
Tick-induced allergy to red meat is associated with anti-α-Gal IgE antibody levels. We propose that tick salivary prostaglandin E2 triggers antibody class switching in mature B cells, increasing the levels of anti-α-Gal IgE antibodies. Immune tolerance to α-Gal in blood type B individuals might reduce the risk to this allergy.
March 29, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28359154/eucheuma-cottonii-sulfated-oligosaccharides-decrease-food-allergic-responses-in-animal-models-by-up-regulating-regulatory-t-treg-cells
#19
Sha-Sha Xu, Qing-Mei Liu, An-Feng Xiao, Soheila J Maleki, Marcos Alcocer, Yuan-Yuan Gao, Min-Jie Cao, Guang-Ming Liu
In the present study, the anti-food allergy activity of Eucheuma cottonii sulfated oligosaccharide (ESO) was investigated. ESO was obtained by enzymatic degradation and purified by column chromatography. RBL-2H3 cells and BALB/c mouse model were used to test the anti-food allergy activity of ESO. The effects of ESO on the regulatory T (Treg) cells and bone marrow-derived mast cells (BMMCs) were investigated by flow cytometry. The results of in vivo assay showed that ESO decreased the levels of mast cell protease-1 and histamine and inhibited the levels of specific IgE by 77...
April 6, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28358324/anti-inflammatory-effect-of-titrated-extract-of-centella-asiatica-in-phthalic-anhydride-induced-allergic-dermatitis-animal-model
#20
Ju Ho Park, Ji Yeon Choi, Dong Ju Son, Eun Kyung Park, Min Jong Song, Mats Hellström, Jin Tae Hong
Centella asiatica has potent antioxidant and anti-inflammatory properties. However, its anti-dermatitic effect has not yet been reported. In this study, we investigated the anti-dermatitic effects of titrated extract of Centella asiatica (TECA) in a phthalic anhydride (PA)-induced atopic dermatitis (AD) animal model as well as in vitro model. An AD-like lesion was induced by the topical application of five percent PA to the dorsal skin or ear of Hos:HR-1 mouse. After AD induction, 100 μL of 0.2% and 0.4% of TECA (40 μg or 80 μg/cm²) was spread on the dorsum of the ear or back skin three times a week for four weeks...
March 30, 2017: International Journal of Molecular Sciences
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