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Animal Allergy

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https://www.readbyqxmd.com/read/28521905/harnessing-the-properties-of-dendritic-cells-in-the-pursuit-of-immunological-tolerance
#1
REVIEW
Christopher Horton, Kumaran Shanmugarajah, Paul J Fairchild
The acquisition of self-perpetuating, immunological tolerance specific for graft alloantigens has long been described as the "holy grail" of clinical transplantation. By removing the need for life-long immunosuppression following engraftment, the adverse consequences of immunosuppressive regimens, including chronic infections and malignancy, may be avoided. Furthermore, autoimmune diseases and allergy are, by definition, driven by aberrant immunological responses to ordinarily innocuous antigens. The re-establishment of permanent tolerance towards instigating antigens may, therefore, provide a cure to these common diseases...
April 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28507730/application-of-the-adverse-outcome-pathway-aop-concept-to-structure-the-available-in-vivo-and-in-vitro-mechanistic-data-for-allergic-sensitization-to-food-proteins
#2
REVIEW
Jolanda H M van Bilsen, Edyta Sienkiewicz-Szłapka, Daniel Lozano-Ojalvo, Linette E M Willemsen, Celia M Antunes, Elena Molina, Joost J Smit, Barbara Wróblewska, Harry J Wichers, Edward F Knol, Gregory S Ladics, Raymond H H Pieters, Sandra Denery-Papini, Yvonne M Vissers, Simona L Bavaro, Colette Larré, Kitty C M Verhoeckx, Erwin L Roggen
BACKGROUND: The introduction of whole new foods in a population may lead to sensitization and food allergy. This constitutes a potential public health problem and a challenge to risk assessors and managers as the existing understanding of the pathophysiological processes and the currently available biological tools for prediction of the risk for food allergy development and the severity of the reaction are not sufficient. There is a substantial body of in vivo and in vitro data describing molecular and cellular events potentially involved in food sensitization...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/28487836/allergic-conjunctivitis-in-asia
#3
REVIEW
Bernard Yu-Hor Thong
Allergic conjunctivitis (AC), which may be acute or chronic, is associated with rhinitis in 30%-70% of affected individuals, hence the term allergic rhinoconjunctivitis (AR/C). Seasonal and perennial AC is generally milder than the more chronic and persistent atopic and vernal keratoconjunctivitis. Natural allergens like house dust mites (HDM), temperate and subtropical grass and tree pollen are important triggers that drive allergic inflammation in AC in the Asia-Pacific region. Climate change, environmental tobacco smoke, pollutants derived from fuel combustion, Asian dust storms originating from central/north Asia and phthalates may also exacerbate AR/C...
April 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/28486398/bioactive-peptides-in-animal-food-products
#4
REVIEW
Marzia Albenzio, Antonella Santillo, Mariangela Caroprese, Antonella Della Malva, Rosaria Marino
Proteins of animal origin represent physiologically active components in the human diet; they exert a direct action or constitute a substrate for enzymatic hydrolysis upon food processing and consumption. Bioactive peptides may descend from the hydrolysis by digestive enzymes, enzymes endogenous to raw food materials, and enzymes from microorganisms added during food processing. Milk proteins have different polymorphisms for each dairy species that influence the amount and the biochemical characteristics (e...
May 9, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28479335/allergen-specific-igg-antibodies-signaling-via-fc%C3%AE-riib-promote-food-tolerance
#5
Oliver T Burton, Jaciel M Tamayo, Amanda J Stranks, Kyle J Koleoglou, Hans C Oettgen
BACKGROUND: Food-allergic subjects produce high-titer IgE antibodies that bind to mast cells via FcεRI and trigger immediate hypersensitivity reactions upon antigen encounter. Food-specific IgG antibodies arise in the setting of naturally resolving food allergy and accompany the acquisition of food allergen unresponsiveness in oral immunotherapy (OIT). OBJECTIVE: In this study, we sought to delineate the effects of IgG and its inhibitory Fc receptor, FcγRIIb, on both de novo allergen sensitization in naïve animals and on established immune responses in the setting of pre-existing food allergy...
May 4, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28476627/-the-impact-of-mycobacterium-tuberculosis-immune-evasion-on-protective-immunity-implications-for-tb-vaccine-design-meeting-report
#6
Cesar Boggiano, Katrin Eichelberg, Lakshmi Ramachandra, Jaqueline Shea, Lalita Ramakrishnan, Samuel Behar, Joel D Ernst, Steven A Porcelli, Markus Maeurer, Hardy Kornfeld
Tuberculosis (TB) is the major cause of death from infectious diseases around the world, particularly in HIV infected individuals. TB vaccine design and development have been focused on improving Bacille Calmette-Guérin (BCG) and evaluating recombinant and viral vector expressed Mycobacterium tuberculosis (Mtb) proteins, for boosting BCG-primed immunity, but these approaches have not yet yielded significant improvements over the modest effects of BCG in protecting against infection or disease. On March 7-8, 2016, the National Institute of Allergy and Infectious Diseases (NIAID) convened a workshop on "The Impact of Mtb Immune Evasion on Protective Immunity: Implications for TB Vaccine Design" with the goal of defining immune mechanisms that could be targeted through novel research approaches, to inform vaccine design and immune therapeutic interventions for prevention of TB...
May 2, 2017: Vaccine
https://www.readbyqxmd.com/read/28430678/laboratory-animal-bite-anaphylaxis-a-national-survey-part-1-case-series-and-review-of-the-literature
#7
Gregg M Stave, Edward H Lee, Dennis J Darcey
OBJECTIVE: This study documents previously unreported cases of laboratory animal bite anaphylaxis in animal laboratory facilities in the United States. METHODS: An online survey was e-mailed to designated institutional officials at laboratory animal facilities identified by the National Institutes of Health Office of Laboratory Animal Welfare. RESULTS: One hundred ninety eight organizations responded and 15 organizations indicated that workers had experienced anaphylaxis following an animal bite...
April 20, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28428784/the-roles-of-mast-cells-in-parasitic-protozoan-infections
#8
REVIEW
Fangli Lu, Shiguang Huang
Protozoan parasites such as Plasmodium spp., Leishmania spp., Trypanosoma spp., and Toxoplasma gondii are major causes of parasitic diseases in both humans and animals. The immune system plays a critical role against protozoa, but their immune mechanism remains poorly understood. This highlights the need to investigate the function of immune cells involved in the process of parasite infections and the responses of host immune system to parasite infections. Mast cells (MCs) are known to be central players in allergy and anaphylaxis, and it has been demonstrated that MCs have crucial roles in host defense against a number of different pathogens, including parasites...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28413565/enrichment-of-in-vivo-transcription-data-from-dietary-intervention-studies-with-in-vitro-data-provides-improved-insight-into-gene-regulation-mechanisms-in-the-intestinal-mucosa
#9
Marcel Hulst, Alfons Jansman, Ilonka Wijers, Arjan Hoekman, Stéphanie Vastenhouw, Marinus van Krimpen, Mari Smits, Dirkjan Schokker
BACKGROUND: Gene expression profiles of intestinal mucosa of chickens and pigs fed over long-term periods (days/weeks) with a diet rich in rye and a diet supplemented with zinc, respectively, or of chickens after a one-day amoxicillin treatment of chickens, were recorded recently. Such dietary interventions are frequently used to modulate animal performance or therapeutically for monogastric livestock. In this study, changes in gene expression induced by these three interventions in cultured "Intestinal Porcine Epithelial Cells" (IPEC-J2) recorded after a short-term period of 2 and 6 hours, were compared to the in vivo gene expression profiles in order to evaluate the capability of this in vitro bioassay in predicting in vivo responses...
2017: Genes & Nutrition
https://www.readbyqxmd.com/read/28400983/allergy-and-aging-an-old-new-emerging-health-issue
#10
REVIEW
Massimo De Martinis, Maria Maddalena Sirufo, Lia Ginaldi
Allergy reactions are the most common immunological diseases and represent one of the most widespread and fast growing chronic human health problems among people over 15 years of age in developed countries. As populations get older worldwide, allergy manifestations in aged persons will occur more often in the future. To date, there has been much more studies on allergies in children than in adults. As the population ages, clinicians must be prepared to meet all the elderly's health care needs, including these new and emerging health issue...
April 2017: Aging and Disease
https://www.readbyqxmd.com/read/28397727/neutralization-of-interleukin-9-decreasing-mast-cells-infiltration-in-experimental-autoimmune-encephalomyelitis
#11
Jun-Jie Yin, Xue-Qiang Hu, Zhi-Feng Mao, Jian Bao, Wei Qiu, Zheng-Qi Lu, Hao-Tian Wu, Xiao-Nan Zhong
BACKGROUND: Th9 cells are a newly discovered CD4+ T helper cell subtype, characterized by high interleukin (IL)-9 secretion. Growing evidences suggest that Th9 cells are involved in the pathogenic mechanism of multiple sclerosis (MS). Mast cells are multifunctional innate immune cells, which are perhaps best known for their role as dominant effector cells in allergies and asthma. Several lines of evidence point to an important role for mast cells in MS and its animal models. Simultaneously, there is dynamic "cross-talk" between Th9 and mast cells...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28394404/comparing-immediate-type-food-allergy-in-humans-and-companion-animals-revealing-unmet-needs
#12
I Pali-Schöll, M De Lucia, H Jackson, J Janda, R S Mueller, E Jensen-Jarolim
Adverse food reactions occur in human as well as veterinary patients and systematic comparison may lead to improved recommendations for prevention and treatment in both. In this position paper, we summarize the current knowledge on immediate type food allergy versus other food-adverse reactions in companion animals, and compare this to the human situation. While the prevalence of food allergy in humans has been well studied for some allergens, this remains to be investigated for animal patients, where owner-reported as well as veterinarian-diagnosed food adverse reactions are on the increase...
April 10, 2017: Allergy
https://www.readbyqxmd.com/read/28375932/outstanding-animal-studies-in-allergy-ii-from-atopic-barrier-and-microbiome-to-allergen-specific-immunotherapy
#13
Erika Jensen-Jarolim, Isabella Pali-Schöll, Franziska Roth-Walter
PURPOSE OF REVIEW: Animal studies published within the past 18 months were assessed, focusing on innate and specific immunomodulation, providing knowledge of high translational relevance for human atopic and allergic diseases. RECENT FINDINGS: Allergic companion animals represent alternative models, but most studies were done in mice. Atopic dermatitis mouse models were refined by the utilization of cytokines like IL-23 and relevant skin allergens or enzymes. A novel IL-6 reporter mouse allows biomonitoring of inflammation...
June 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28359154/eucheuma-cottonii-sulfated-oligosaccharides-decrease-food-allergic-responses-in-animal-models-by-up-regulating-regulatory-t-treg-cells
#14
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 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28349869/modulation-of-regulatory-t-cells-by-intranasal-allergen-immunotherapy-in-an-experimental-rat-model-of-airway-allergy
#15
Saibal Moitra, Ankur Datta, Somnath Mondal, Iman Hazra, Sk Md Omar Faruk, Prasanta K Das, Anjan K Basu, Santanu K Tripathi, Swapna Chaudhuri
Allergic airway diseases such as asthma and allergic rhinitis are increasing in prevalence worldwide. The theory of an altered Th1/Th2 balance in allergic diathesis has recently been termed a "procrustean paradigm" as it failed to explain many preclinical findings. Regulatory T cells (Treg) have now been shown to be critical in T-cell homeostasis and in the maintenance of peripheral tolerance to allergens. Allergen specific immunotherapy (SIT) has been shown to induce regulatory T cells in allergic patients...
March 24, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28347293/comparison-of-a-novel-microcrystalline-tyrosine-adjuvant-with-aluminium-hydroxide-for-enhancing-vaccination-against-seasonal-influenza
#16
M D Heath, N J Swan, A C Marriott, N J Silman, B Hallis, C Prevosto, K E Gooch, M A Skinner
BACKGROUND: Vaccination against seasonal influenza strains is recommended for "high risk" patient groups such as infants, elderly and those with respiratory or circulatory diseases. However, efficacy of the trivalent influenza vaccine (TIV) is poor in many cases and in the event of an influenza pandemic, mono-valent vaccines have been rapidly developed and deployed. One of the main issues with use of vaccine in pandemic situations is the lack of a suitable quantity of vaccine early enough during the pandemic to exert a major influence on the transmission of virus and disease outcome...
March 27, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28346234/outstanding-animal-studies-in-allergy-i-from-asthma-to-food-allergy-and-anaphylaxis
#17
Erika Jensen-Jarolim, Isabella Pali-Schöll, Franziska Roth-Walter
PURPOSE OF REVIEW: Animal models published within the past 18 months on asthma, food allergy and anaphylaxis, all conditions of rising public health concern, were reviewed. RECENT FINDINGS: While domestic animals spontaneously develop asthma, food allergy and anaphylaxis, in animal models, divergent sensitization and challenge routes, dosages, intervals and antigens are used to induce asthmatic, food allergic or anaphylactic phenotypes. This must be considered in the interpretation of results...
June 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28326907/skin-sensitizers-in-cosmetics-and-beyond-potential-multiple-mechanisms-of-action-and-importance-of-t-cell-assays-for-in-vitro-screening
#18
Stanislav Vukmanović, Nakissa Sadrieh
Allergic contact dermatitis (ACD) is a delayed-type hypersensitivity (DTH) reaction induced by repeated contact with sensitizers. The ability of a chemical to act as a sensitizer has most frequently been tested in animals. As the use of animals for these purposes is gradually and globally being phased out, there is a need for reliable in vitro surrogate assays. Currently proposed in vitro assays are designed to test four key events of the adverse outcome pathway (AOP) involving covalent modification of self-proteins by sensitizers (haptenation) and presentation of new antigens (hapten/carrier complexes) to the immune system...
March 22, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28325597/relationships-between-acrylamide-and-glycidamide-hemoglobin-adduct-levels-and-allergy-related-outcomes-in-general-us-population-nhanes-2005-2006
#19
Jing Guo, Dongdong Yu, Na Lv, Rongpan Bai, Chunjing Xu, Guangdi Chen, Weiming Cao
BACKGROUND: Acrylamide-induced immunotoxicity and allergic dermatitis have been reported in animal experiments and clinical reports, respectively. However, epidemiological evidence from the general population is limited. OBJECTIVES: The purpose of the present study was to estimate the associations between acrylamide exposure and allergy-related outcomes in the general US population. METHODS: A total of 6982 subjects were selected from the National Health and Nutrition Examination Survey 2005-2006 (NHANES)...
March 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28303765/the-significance-of-the-levels-of-il-4-il-31-and-tlsp-in-patients-with-asthma-and-or-rhinitis
#20
Ruonan Chai, Beixing Liu, Feifei Qi
AIM: To investigate the clinical significance of the levels of IL-4, IL-33 and thymic stromal lymphopoietin (TLSP) in patients with asthma and/or rhinitis, then do the simple verification in animals. METHODS: Levels of IL-4 IL-31, IL-33 and TLSP were detected by ELISA and real-time PCR in 64 asthma patients (sIgE[+]: 32 cases, sIgE[-]: 32 cases), 64 rhinitis patients (sIgE[+]: 32 cases, sIgE[-]: 32 cases), 64 asthma complicated with allergic rhinitis patients (sIgE[+]: 32 cases, sIgE[-]: 32 cases) and 32 healthy controls...
March 2017: Immunotherapy
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