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Animal Allergy

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https://www.readbyqxmd.com/read/29038838/respiratory-sensitization-toxicological-point-of-view-on-the-available-assays
#1
Aline Chary, Jennifer Hennen, Sebastian G Klein, Tommaso Serchi, Arno C Gutleb, Brunhilde Blömeke
Respiratory sensitization as a consequence of exposure to chemical products has increased over the last decades, leading to an increase of morbidity. The increased use of synthetic compounds resulted in an exponential growth of substances to which we are potentially exposed on a daily basis. Some of them are known to induce respiratory sensitization, meaning that they can trigger the development of allergies. In the past, animal studies provided useful results for the understanding of mechanisms involved in the development of respiratory allergies...
October 16, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29028247/atopy-as-a-modifier-of-the-relationships-between-endotoxin-exposure-and-symptoms-among-laboratory-animal-workers
#2
Ashley N Newton, Meghan Davis, Kirsten Koehler, Wayne Shreffler, Sharon Ahluwalia, Nervana Metwali, Peter S Thorne, Beverly J Paigen, Elizabeth C Matsui
Background: Exposure to endotoxin is known to trigger airway inflammation and symptoms, and atopy may modify the relationship between endotoxin exposure and symptom development. Objective: To test the a priori hypothesis that atopic status modifies the relationship between endotoxin exposure and respiratory symptom development. Methods: A prospective study of laboratory workers at The Jackson Laboratories was conducted. Allergy skin testing was performed and population demographic and clinical information was obtained at baseline...
October 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29024520/allergen-immunotherapy-exploring-areas-for-further-inquiry
#3
Tam Ramsey, Wanda Lai, Peter F Svider, Houmehr Hojjat, Jean Anderson Eloy, Adam J Folbe
BACKGROUND: Allergy-related illness impacts millions of individuals worldwide. Our objectives were to characterize current trends of clinical trials research relating to allergen immunotherapy and to describe the landscape of allergen immunotherapy in National Institutes of Health (NIH)-supported research inquiry. METHODS: On ClinicalTrials.gov, the following terms were searched: allergen immunotherapy OR allergy immunotherapy. Variables, including completion status, dates, design, study population, funder, location, and allergen were recorded...
October 12, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29023853/antibiotics-gut-microbiome-and-obesity
#4
Karen S W Leong, José G B Derraik, Paul L Hofman, Wayne S Cutfield
Antibiotics have been hailed by many as 'miracle drugs' that have been effectively treating infectious diseases for over a century, leading to a marked reduction in morbidity and mortality. However, with the increasing use of antibiotics, we are now faced not only with the increasing threat of antibiotic resistance, but also with a rising concern about potential long-term effects of antibiotics on human health, including the development of obesity. The obesity pandemic continues to increase, a problem that affects both adults and children alike...
October 12, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28993711/social-impairments-in-autism-spectrum-disorder-are-related-to-maternal-immune-history-profile
#5
S Patel, A Masi, R C Dale, A J O Whitehouse, I Pokorski, G A Alvares, I B Hickie, E Breen, A J Guastella
Maternal immune activation has been highlighted as a factor that might increase the risk and severity of autism spectrum disorder (ASD) in children. Preclinical animal evidence shows that immune activation in mothers during pregnancy causes ASD-like behavioural traits in offspring. To this point, there has been no investigation of whether immune system activation in human mothers during pregnancy is associated with more severe symptoms in children with ASD. In this study, data from an existing ASD cohort (N=220) were analysed to investigate whether immune conditions in the mother were associated with greater severity of autism-related symptoms...
October 10, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28991316/-epidemiological-characterization-of-bites-on-people-as-emergency-care-record-province-of-los-andes-chile
#6
Vania Villagra, Dante Cáceres, Sergio Alvarado, Elizabeth Salinas, M Loreto Caldera, Erick Lucero, Paola Viviani, Marisa Torres
BACKGROUND: Bites constitute a public health problem worldwide. AIM: To characterize epidemiologically bites by animals happened in the province of Los Andes (2005-2007). METHOD: Descriptive, retrospective epidemiological study. Studied variables: Bitten person (BP), accident by bite, biting animal and bite. It was not feasible to obtain more updated information by law of patient protection. RESULTS: 2,360 BP were assisted in the emergency unit of San Juan de Dios Hospital and Rio Blanco clinic...
June 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28985721/a-descriptive-pilot-study-of-cytokine-production-following-stimulation-of-ex-vivo-whole-blood-with-commercial-therapeutic-feline-hydrolyzed-diets-in-individual-healthy-immunotolerant-cats
#7
Aarti Kathrani, Jennifer A Larsen, Gino Cortopassi, Sandipan Datta, Andrea J Fascetti
BACKGROUND: Hydrolyzed diets are used in companion animals for the diagnosis and treatment of adverse food reaction. Similarly, hydrolyzed formulas are used in human infants with severe inflammatory bowel disease or milk allergy, and these must meet the standard of hypoallergenicity through rigorous testing. Unfortunately, no standards are currently applied to hydrolyzed veterinary therapeutic diets, and data for the immunogenicity of feline diets is also not available. Therefore, the main aim of this pilot study was to determine if ex-vivo whole blood stimulation assays could be used to characterize the cytokine response to hydrolyzed commercial diets in a small number of individual healthy immunotolerant cats...
October 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28979006/anthrax-where-margins-are-merging-between-emerging-threats-and-bioterrorism
#8
Dibyendu Banerjee, Baishali Chakraborty, Banya Chakraborty
National Institute of Allergy and Infectious Diseases has classified all the emerging infectious diseases agents under three categories. Among Category A priority pathogens comes Bacillus anthracis -the causative agent of Anthrax. It is a gram positive spore bearing bacteria, and the disease is typically associated with grazing animals, and affects the people as a zoonosis. The disease can be classically transmitted by three routes namely: cutaneous, gastrointestinal and pulmonary, with a fourth route recently identified as "injection anthrax", seen in intravenous drug abusers...
September 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28962865/protective-effect-of-baicalin-on-the-small-intestine-in-rats-with-food-allergy
#9
Xiu-Mei Yan, Jing-Bin Yan, Kai-Yu Huang, Tong-Tong Pan, Zhang Xu, Hua-Jun Lu
AIMS: The therapeutic effect of baicalin and its mechanism were explored. MATERIALS AND METHODS: A total of 30 Sprague Dawley (SD) rats were randomly divided into 3 groups of 10: ovalbumin group (OVA group), baicalin intervention group (HQ group), and saline-group (NC group). Serum OVA-IgE antibody levels were detected by enzyme-linked immunosorbent assay (ELISA); and diarrhea in rats was observed. Animals were sacrificed at week seven. Then, a 5-cm long duodenum beneath the Treitz ligament was collected from each rat, and was fixed, embedded, sliced and stained with toluidine blue to evaluate the integrity of mast cells...
September 26, 2017: Life Sciences
https://www.readbyqxmd.com/read/28961208/how-can-elispot-add-information-to-improve-knowledge-on-tropical-diseases
#10
REVIEW
Josué da Costa Lima-Junior, Fernanda Nazaré Morgado, Fátima Conceição-Silva
Elispot has been used as an important tool for detecting immune cells' products and functions and has facilitated the understanding of host-pathogen interaction. Despite the incredible diversity of possibilities, two main approaches have been developed: the immunopathogenesis and diagnosis/prognosis of infectious diseases as well as cancer research. Much has been described on the topics of allergy, autoimmune diseases, and HIV-Aids, however, Elispot can also be applied to other infectious diseases, mainly leishmaniasis, malaria, some viruses, helminths and mycosis usually classified as tropical diseases...
September 29, 2017: Cells
https://www.readbyqxmd.com/read/28960628/treatment-of-gastric-eosinophilia-by-epicutaneous-immunotherapy-in-piglets-sensitized-to-peanuts
#11
L Mondoulet, N Kalach, V Dhelft, T Larcher, C Delayre-Orthez, P H Benhamou, J Spergel, H A Sampson, C Dupont
BACKGROUND: Eosinophilic Gastrointestinal Disorders (EGIDs) are hypersensitivity disorders frequently triggered by food allergy and manifested by mucosal eosinophilic infiltration at any level of the gastro-intestinal tract. This study established a model of gastric eosinophilia in peanut-sensitized piglets to evaluate the efficacy of epicutaneous immunotherapy (EPIT) for its treatment. METHODS: Experiments were carried out in piglets first sensitized by 3 intra-peritoneal injections of peanut protein extract (PPE) with adjuvant, and then given PPE orally for 10 days, a sequence leading to gastric eosinophilia assessed by endoscopy...
September 28, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28939389/recombinant-allergen-and-peptide-based-approaches-for-allergy-prevention-by-oral-tolerance
#12
REVIEW
Raffaela Campana, Huey-Jy Huang, Raphaela Freidl, Birgit Linhart, Susanne Vrtala, Thomas Wekerle, Alexander Karaulov, Rudolf Valenta
Several studies conducted in animal models for immunologically-mediated hypersensitivity diseases have shown that oral administration of antigens early in life can prevent the development of specific humoral and cellular immune responses and thus hypersensitivity reactions to the respective antigens. Such data were also obtained in models for Immunoglobulin E (IgE)-associated allergy, the most common hypersensitivity disease affecting more than 25% of the population. Based on data obtained in animal models for allergy several clinical intervention studies have been conducted in children to study if oral administration of materials containing allergens or allergen-derived peptides early in life can prevent the subsequent development of allergy...
September 20, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28929421/immunotherapy-of-food-allergy-a-comprehensive-review
#13
REVIEW
Christine Y Y Wai, Nicki Y H Leung, Patrick S C Leung, Ka Hou Chu
Food allergy imposes a severe global health burden, and thus, there is a dire need for safe and effective treatments. Allergen-specific immunotherapy (AIT) is currently the only approach to restore immune tolerance through administrating increasing doses of allergen extracts. Unfortunately, the development of AIT for food allergies has been impeded by the frequent anaphylactic side effects during the course of treatment. The emergence of component-resolved diagnosis has greatly improved our ability to identify causative allergens and revolutionized the design of AIT...
September 19, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28901381/anti%C3%A2-allergic-action-of-bacillus-calmette%C3%A2-guerin-extract-in-experimental-mast-cell%C3%A2-mediated-anaphylactic-models
#14
Mingli Sun, Yong Wang, Haishan Zhao, Weifan Yao, Xiaosong Yu
Allergy is an acquired hypersensitivity reaction of the immune system mediated by IgE‑induced mast cell degranulation. In China, bacillus Calmette‑Guerin extract (BCGE) has been shown to be clinically effective for regulating immunity, which enhances the resistance of the body to anaphylactic disease, infectious diseases and cancer. However, the mechanisms remain to be fully elucidated. The present study investigated the potential anti‑allergic effects of BCGE in animal models of mast cell‑dependent anaphylaxis and mechanisms of BCGE in mast cells...
November 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900324/a-significant-breakthrough-in-the-incidence-of-childhood-cancers-and-evaluation-of-its-risk-factors-in-southern-iran
#15
Asma Erjaee, Maryam Niknam, Ahmadreza Sadeghi, Maryam Dehghani, Zeinab Safaei, Saeed Hosseini Teshnizi, Mehran Karimi
BACKGROUND AND OBJECTIVE: This study investigates epidemiologic and practical information about the incidence and risk factors of childhood cancer in a population of Southern Iranian children. MATERIALS AND METHODS: A total number of 300 cancer patients along with 600 age- and gender-matched healthy control were interviewed by a trained physician regarding their demographic characteristics, and major family-associated risk factors, childhood malignancies. RESULTS: The average annual percentage change for cancers in the studied population is calculated as 45%...
April 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28889953/role-of-b-cells-in-t-helper-cell-responses-in-a-mouse-model-of-asthma
#16
Tomasz Piotr Wypych, Roberta Marzi, Gregory F Wu, Antonio Lanzavecchia, Federica Sallusto
BACKGROUND: The importance of B lymphocytes to present antigens for antibody production is well documented. In contrast, very little is known about their capacity to influence CD4(+) T cell activation during primary or secondary response to allergens. OBJECTIVE: Using mouse models of asthma, we investigated the role of B cells as antigen presenting cells in propagation and initiation of T helper cell responses. METHODS: Mice were immunized via intranasal route with house dust mite extract (HDM) derived from Dermatophagoides pteronyssinus...
September 7, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28884988/assessment-of-allergen-specific-ige-by-immunoblotting-method-in-atopic-dermatitis
#17
M R Bonyadi, D Hassanzadeh, N Seyfizadeh, S Borzoueisileh
Background and Objectives. Stimulating the immune system by exposure to various allergens to produce specific IgE has a significant role in the pathogenesis of atopic dermatitis. Identifying disease-causing allergens, prevention of exposure to those allergens, and immunotherapy will play an important role in the treatment of Atopic Disease. The purpose of this study was to determine the common allergens of northwest of Iran in patients with atopic dermatitis that are resistant to treatment. Materials and methods...
September 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28870489/bisphenol-a-and-immunotoxic-potential-a-commentary
#18
Ian Kimber
Bisphenol A (BPA) is used in the manufacture of polycarbonate and epoxy resin plastics. There has been interest in the possibility that BPA has immunotoxic properties, and a variety of investigations have explored this. Among the approaches taken have been human observational and cross-sectional studies, investigations using experimental animals, and in vitro studies, some of which have been reviewed previously by the European Food Safety Authority (EFSA). This commentary aims to provide a focused review of data regarding the ability of BPA to perturb the immune system, including the developing immune system, and to cause related adverse health effects...
September 14, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28865410/decreased-sensitization-to-aeroallergens-among-southwestern-iranian-male-farmers
#19
Mozhgan Moghtaderi, Mona Torab Jahromi, Shirin Farjadian, Payam Ghassemi, Saeed Hosseini Teshnizi
Farmers are usually exposed to various inhaled allergens like pollens, mites, molds, and animal dander in their working environment which may lead to allergic rhinitis, asthma and urticaria. The purpose of this study was to identify sensitization to various aeroallergens in farmers and their occupational allergy symptoms. This cross sectional study included 103 male farmers and 100 non-farmer healthy controls. The work-related symptoms of farmers were recorded with a questionnaire. Spirometry and skin prick tests with 15 commercial allergen extracts were performed in both farmers and controls...
August 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28853984/next-generation-immunotherapy-for-tree-pollen-allergies
#20
Yan Su, Eliezer Romeu-Bonilla, Teri Heiland
Tree pollen induced allergies are one of the major medical and public health burdens in the industrialized world. Allergen-Specific Immunotherapy (AIT) through subcutaneous injection or sublingual delivery is the only approved therapy with curative potential to pollen induced allergies. AIT often is associated with severe side effects and requires long-term treatment. Safer, more effective and convenient allergen specific immunotherapies remain an unmet need. In this review article, we discuss the current progress in applying protein and peptide-based approaches and DNA vaccines to the clinical challenges posed by tree pollen allergies through the lens of preclinical animal models and clinical trials, with an emphasis on the birch and Japanese red cedar pollen induced allergies...
October 3, 2017: Human Vaccines & Immunotherapeutics
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