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https://www.readbyqxmd.com/read/28229922/mandevilla-longiflora-desf-pichon-improves-airway-inflammation-in-a-murine-model-of-allergic-asthma
#1
Danielle Ayr Tavares de Almeida, Suellen Iara Guirra Rosa, Thais Campos Dias da Cruz, Eduarda Pavan, Amílcar Sabino Damazo, Ilsamar Mendes Soares, Sérgio Donizeti Ascêncio, Antonio Macho, Domingos Tabajara de Oliveira Martins
ETHNOPHARMACOLOGICAL RELEVANCE: Mandevilla longiflora, popularly known as "velame" in central Brazil, is a subshrub and widely distributed in South America. Its xylopodium is used in the form of a decoction or infusion to treat inflammation and other ailments. AIM OF THE STUDY: This study aimed to evaluate the anti-inflammatory potential of M. longiflora in an in vivo model of ovalbumin-induced immediate hypersensitivity, identifying its effects on leukocyte infiltration, IgE and LTB4 levels, and Th2 cytokine production...
February 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28226401/natural-evolution-in-patients-with-non-steroidal-anti-inflammatory-drugs-induced-urticaria-angioedema
#2
Inmaculada Doña, Esther Barrionuevo, María Salas, José Antonio Cornejo-García, James R Perkins, Gádor Bogas, Ana Prieto, María José Torres
BACKGROUND: Non-steroidal anti-inflammatory drugs (NSAIDs) are the most frequent triggers of drug hypersensitivity with NSAIDs-induced urticaria/angioedema (NIUA) the most common phenotype. Loss of hypersensitivity has been reported for IgE-mediated reactions; however it has not been assessed in non-immunological reactions such as NIUA. We evaluated NSAID-hypersensitivity over time in NIUA patients. METHODS: Patients confirmed as NIUA by positive drug provocation test (DPT) with acetylsalicylic acid (ASA) during 2005-2012 (V1) were included (n=38)...
February 22, 2017: Allergy
https://www.readbyqxmd.com/read/28224981/unusual-anti-allergic-diterpenoids-from-the-marine-sponge-hippospongia-lachne
#3
Li-Li Hong, Hao-Bing Yu, Jie Wang, Wei-Hua Jiao, Bao-Hui Cheng, Fan Yang, Yong-Jun Zhou, Bin-Bin Gu, Shao-Jiang Song, Hou-Wen Lin
Hipposponlachnins A (1) and B (2), possessing an unprecedented tetracyclo [9.3.0.0(2,8).0(3,7)] tetradecane ring system, and the probable biogenetic precursor [3, (1R*,2E,4R*,7E,10S*,11S*,12R*)-10, 18-diacetoxydolabella-2,7-dien-6-one] of 1‒2 were isolated from the South China Sea marine sponge Hippospongia lachne. The structures of the novel compounds were determined using integrated spectroscopic methods in combination with single-crystal X-ray diffraction analysis. Compounds 1‒2 showed potent inhibitory activity on the release of β-hexosaminidase, a biomarker for degranulation, as well as the production of pro-inflammatory cytokine IL-4 and lipid mediator LTB4 in DNP-IgE-stimulated RBL-2H3 cells...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224342/galactose-%C3%AE-1-3-galactose-atypical-food-allergen-or-model-ige-hypersensitivity
#4
REVIEW
Jeffrey M Wilson, Alexander J Schuyler, Nikhila Schroeder, Thomas A E Platts-Mills
PURPOSE OF REVIEW: Galactose-α-1,3-galactose (α-gal) is a carbohydrate allergen with several unique characteristics. In this article, we discuss some recent advances in our understanding of the 'alpha-gal syndrome,' highlight data supporting the role of ticks in pathogenesis, and speculate on immune mechanisms that lead to sensitization. RECENT FINDINGS: First described as the target of IgE in individuals suffering immediate hypersensitivity reactions to the novel anti-EGF monoclonal antibody cetuximab, it is now clear that α-gal sensitization is associated with mammalian meat allergy as well as reactions to other mammalian products...
January 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28218721/bee-venom-phospholipase-a2-ameliorates-house-dust-mite-extract-induced-atopic-dermatitis-like-skin-lesions-in-mice
#5
Kyung-Hwa Jung, Hyunjung Baek, Manho Kang, Namsik Kim, Seung Young Lee, Hyunsu Bae
Atopic dermatitis (AD) is a biphasic inflammatory skin disease that is provoked by epidermal barrier defects, immune dysregulation, and increased skin infections. Previously, we have demonstrated that bvPLA2 evoked immune tolerance by inducing regulatory T cells (Treg), and thus alleviated Th2 dominant allergic asthma in mice. Here, we would like to determine whether treatment with bvPLA2 exacerbates the AD-like allergic inflammations induced by house dust mite extract (DFE) in a murine model. Epidermal thickness, immune cell infiltration, serum immunoglobulin, and cytokines were measured...
February 18, 2017: Toxins
https://www.readbyqxmd.com/read/28217582/detection-of-anti-filarial-antibody-among-hydrocele-patients-living-in-an-endemic-area-for-filariasis
#6
Amit Kumar Singh, Loveleena Agarwal, Krishna Lakhmani, Chandrim Sengupta, Ravinder Pal Singh
BACKGROUND: The knowledge of the current prevalence of lymphatic filariasis and its transmission will be helpful in its elimination. Thus, the present study is aimed to determine its prevalence among hydrocele patients which is a common presentation in chronically infected cases. MATERIALS AND METHODS: One hundred patients suffering from hydrocele admitted to the surgical ward were included in the study. Blood samples were collected from the patients during the day hours for the detection of anti-filarial antibody and during night hours to detect the presence of microfilaria by smear examination...
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28216887/anti-nociceptive-effect-of-7-methoxy-coumarin-from-eupatorium-triplinerve-vahl-asteraceae
#7
Binoy Varghese Cheriyan, Parimala Kadhirvelu, Jagan Nadipelly, Jaikumar Shanmugasundaram, Vijaykumar Sayeli, Viswanathan Subramanian
AIM: To evaluate the anti-nociceptive activity of 7-methoxy coumarin isolated from ethyl acetate fraction of the alcoholic extract of Eupatorium triplinerve Vahl. MATERIALS AND METHODS: The shade dried leaves of E. triplinerve were extracted with ethyl alcohol and the extract was condensed. This extract was fractionated with n-hexane, ethyl acetate, and n-butanol. The ethyl acetate fraction was subjected to column chromatography which yielded a crystalline compound-A, which was investigated for spectral characteristics...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28216598/clinical-signs-staphylococcus-and-atopic-eczema-related-seromarkers
#8
Kam Lun Hon, Kathy Yin Ching Tsang, Jeng Sum C Kung, Ting Fan Leung, Christopher W K Lam, Chun Kwok Wong
: Childhood eczema or atopic dermatitis (AD) is a distressing disease associated with pruritus, sleep disturbance, impaired quality of life and Staphylococcus aureus isolation. The pathophysiology of AD is complex and various seromarkers of immunity are involved. We investigated if anti-staphylococcal enterotoxin IgE (anti-SE), selected seromarkers of T regulatory (Treg), T helper (Th) and antigen-presenting cells (APC) are associated with clinical signs of disease severity and quality of life...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28215576/changes-in-il-4-and-il-13-expression-in-allergic-rhinitis-treated-with-hydrogen-rich-saline-in-guinea-pig-model
#9
C Zhao, S Yu, J Li, W Xu, R Ge
BACKGROUND: Medical gas hydrogen (H2) has a special role in airway inflammation; however, the effect of H2 on allergic rhinitis (AR) remains unclear. This study explored the possible roles of H2 on the pathogenesis of AR and observed the influences of H2 on cytokines IL-4 and IL-13. METHODS: An AR guinea pig model was established by nasal ovalbumin sensitisation. Eighteen guinea pigs were divided into three groups, namely, saline control, AR-sensitised, and hydrogen-rich saline (HRS)-treated groups, with each group having six guinea pigs...
February 15, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28212503/lactobacillus-buchneri-s-layer-as-carrier-for-an-ara-h-2-derived-peptide-for-peanut-allergen-specific-immunotherapy
#10
Julia Anzengruber, Merima Bublin, Eva Bönisch, Bettina Janesch, Angelika Tscheppe, Matthias L Braun, Eva-Maria Varga, Christine Hafner, Heimo Breiteneder, Christina Schäffer
Peanut allergy is an IgE-mediated severe hypersensitivity disorder. The lack of a treatment of this potentially fatal allergy has led to intensive research on vaccine development. Here, we describe the design and initial characterization of a carrier-bound peptide derived from the most potent peanut allergen, Ara h 2, as a candidate vaccine. Based on the adjuvant capability of bacterial surface (S-) layers, a fusion protein of the S-layer protein SlpB from Lactobacillus buchneri CD034 and the Ara h 2-derived peptide AH3a42 was produced...
February 14, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28199353/oral-administration-of-lactobacillus-paracasei-l9-attenuates-pm2-5-induced-enhancement-of-airway-hyperresponsiveness-and-allergic-airway-response-in-murine-model-of-asthma
#11
Xifan Wang, Yan Hui, Liang Zhao, Yanling Hao, Huiyuan Guo, Fazheng Ren
This study investigated allergy immunotherapy potential of Lactobacillus paracasei L9 to prevent or mitigate the particulate matter 2.5 (PM2.5) enhanced pre-existing asthma in mice. Firstly, we used a mouse model of asthma (a 21-day ovalbumin (OVA) sensitization and challenge model) followed by PM2.5 exposure twice on the same day of the last challenge. PM2.5 was collected from the urban area of Beijing and underwent analysis for metals and polycyclic aromatic hydrocarbon contents. The results showed that PM2...
2017: PloS One
https://www.readbyqxmd.com/read/28194434/corticosteroids-inhibit-anti-ige-activities-of-specialized-proresolving-mediators-on-b-cells-from-asthma-patients
#12
Nina Kim, Thomas H Thatcher, Patricia J Sime, Richard P Phipps
Specialized proresolving mediators (SPMs) promote the resolution of inflammation and exert beneficial effects in animal models of chronic inflammatory diseases, including asthma. Previously, we have shown that certain SPMs reduce IgE production in B cells from healthy individuals, which has a critical role in allergic asthma. Here, we investigated the effects of SPMs on B cell IgE production in asthma patients. Peripheral blood mononuclear cells from asthma patients were treated with 17-HDHA or RvD1, and IgE levels were measured...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28194084/civil-construction-work-the-unseen-contributor-to-the-occupational-and-global-disease-burden
#13
R Sitalakshmi, P Saikumar, P Jeyachandran, Manoharan, Thangavel, Jayakar Thomas
BACKGROUND: Construction industry is the second largest employment giving industry in India with many semi-skilled or unskilled workers taking up the occupation for livelihood without any training and proper guidance. AIM: To evaluate the pathogenic association of cement exposure to occupational contact dermatoses as evidenced by immune markers and to correlate their pulmonary functions with years of exposure to cement. SETTING AND DESIGN: This was a cross-sectional study conducted among randomly selected cement workers...
May 2016: Indian Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28190352/polyphenol-interactions-mitigate-the-immunogenicity-and-allergenicity-of-gliadins
#14
Maxime Perot, Roberta Lupi, Sylvain Guyot, Carine Delayre-Orthez, Pascale Gadonna-Widehem, Jean-Yves Thebaudin, Marie Bodinier, Colette Larre
Wheat allergy is an IgE-mediated disorder. Polyphenols, which are known to interact with certain proteins, could be used to reduce allergic reactions. In this study, we screened several polyphenol sources for their ability to interact with gliadins, mask epitopes and impact basophil degranulation. Polyphenol extracts from artichoke leaves, cranberries, apples and green tea leaves were examined. Of these extracts, the first three formed insoluble complexes with gliadins. Only the cranberry and apple extracts masked epitopes in dot blot assays using anti-gliadin IgG and IgE antibodies from patients with wheat allergies...
February 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28188768/frequency-of-toxocara-spp-antibodies-in-umbilical-cords-of-newborns-attended-atthe-university-hospital-in-southern-brazil-and-factors-associated-with-infection
#15
Paula Costa Santos, Paula Lima Telmo, Lis Maurente Lehmann, Carolina Lorenzi, Carolina Hirsch, Gabriela Torres Mattos, Gabriel Baracy Klafke, Maria Elisabeth Aires Berne, Carla Vitola Gonçalves, Carlos James Scaini
Toxocariasis is a neglected and geographically widespread parasitic disease. The detection of specific antibodies associated with this disease is required to confirm its clinical diagnosis and to aid in prevention. Although helminth infection during pregnancy can promote foetal immune responses with long-term effects, specific information regarding the risk of Toxocara spp. infection to the human foetus during pregnancy is lacking.Therefore,the present study aimed to investigate the frequency of antibodies against Toxocara spp...
February 7, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28188638/assessing-the-effect-of-5-hydroxymethylfurfuralon-on-selected-components-of-immune-responses-in-mice-immunized-with-ovalbumin
#16
Mohammad Alizadeh, Hamed Khodaei, Mehran Mesgari Abbasi, Sevda Saleh-Ghadimi
BACKGROUND: 5-hydroxymethylfurfural (5-HMF) is one of the most important products of the maillard reaction. In recent years, many profitable biological effects of this compound have been demonstrated. This study sought to elucidate the anti-allergic effect of 5-HMF by investigating some selected components of the immune response in BALB/c mice immunized with ovalbumin (OVA). RESULTS: Immunized animals had an increased level of serum total and OVA-specific antibodies when compared to the control (P < 0...
February 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28181151/update-on-potential-therapies-for-ige-mediated-food-allergy
#17
REVIEW
Andrew MacGinnite
PURPOSE OF REVIEW: Food allergy is common, affecting up to 8% of children in the USA. Currently, therapy is limited to avoidance of the implicated allergen and availability of self-injectable epinephrine. However, several new approaches to food allergy are under investigation. This article reviews the published data on these new approaches. RECENT FINDINGS: Oral immunotherapy, in which allergic subjects are exposed to increasing amounts of antigen, can be accomplished in the majority of allergic individuals...
January 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28173791/effects-of-angelicae-dahuricae-radix-on-2-4-dinitrochlorobenzene-induced-atopic-dermatitis-like-skin-lesions-in-mice-model
#18
Jin Mo Ku, Se Hyang Hong, Hyo In Kim, Hye Sook Seo, Yong Cheol Shin, Seong-Gyu Ko
BACKGROUND: Atopic dermatitis (AD) is an inflammatory, chronically relapsing, and intensively pruritic skin disease that affect 10-30% of the global population. Angelicae dahuricae Radix (ADR) has been reported to be anti-inflammatory in Korean Medicine. In the present study, we investigated whether ADR suppresses the progression of AD in animal model. METHODS: AD was induced by 2, 4-Dinitrochlorobenzene (DNCB). ADR was orally administered to mice to study the effect of ADR on AD...
February 7, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28167223/anti-allergic-activity-of-2-4-6-trihydroxy-3-geranylacetophenone-thga-via-attenuation-of-ige-mediated-mast-cell-activation-and-inhibition-of-passive-systemic-anaphylaxis
#19
Ji Wei Tan, Daud Ahmad Israf, Hanis Hazeera Harith, Nur Fariesha Md Hashim, Chean Hui Ng, Khozirah Shaari, Chau Ling Tham
tHGA, a geranyl acetophenone compound originally isolated from a local shrub called Melicope ptelefolia, has been previously reported to prevent ovalbumin-induced allergic airway inflammation in a murine model of allergic asthma by targeting cysteinyl leukotriene synthesis. Mast cells are immune effector cells involved in the pathogenesis of allergic diseases including asthma by releasing cysteinyl leukotrienes. The anti-asthmatic properties of tHGA could be attributed to its inhibitory effect on mast cell degranulation...
February 4, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28166609/modulating-immunogenicity-of-factor-ix-by-fusion-to-an-immunoglobulin-fc-domain-a-study-using-hemophilia-b-mouse-model
#20
Ditza Levin, H A Daniel Lagassé, Erin Burch, Scott Strome, Siyuan Tan, Haiyan Jiang, Zuben E Sauna, Basil Golding
BACKGROUND: Fc-fusion is a platform technology used to increase the circulating half-life of protein and peptide therapeutics. However, there are potential immunological consequences with this approach, such as changes in the molecule's immunogenicity as well as possible interactions with a repertoire of Fc-receptors (FcR) which can modulate immune responses. OBJECTIVES/METHODS: Using a mouse hemophilia B (HB) model, we compared the immune responses to infusions of recombinant human Factor IX (hFIX) and hFIX fused to mouse IgG2a-Fc (hFIX-mFc)...
February 6, 2017: Journal of Thrombosis and Haemostasis: JTH
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