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Anaphylaxie

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https://www.readbyqxmd.com/read/28431112/long-term-survival-of-the-mouse-es-cell-derived-mast-cell-medmc-brc6-in-mast-cell-deficient-kitw-sh-w-sh-mice
#1
Shohei Shibagaki, Satoko Tahara-Hanaoka, Takashi Hiroyama, Yukio Nakamura, Akira Shibuya
Mast cells (MCs) play pivotal roles in allergic reactions and the host defense against microbial infection through the immunoglobulin E (IgE)-dependent and IgE-independent signaling pathways. MC lines that can be analyzed both in vitro and in vivo would be useful for the study of MC-dependent immune responses. Here we investigated the functional characteristics of a mouse ES cell-derived mast cell-like cell line, MEDMC-BRC6. The cell line expressed FcεRI and c-Kit and showed degranulation and production of inflammatory cytokines and chemokine, including TNF-α, IL-6 and MCP-1, upon crosslinking FcεRI with IgE...
April 18, 2017: International Immunology
https://www.readbyqxmd.com/read/28430735/sodium-tetradecyl-sulfate-a-review-of-clinical-uses
#2
Helena A Jenkinson, Kelly M Wilmas, Sirunya Silapunt
BACKGROUND: Sodium tetradecyl sulfate (STS) is Food and Drug Administration approved for treatment of varicose veins, but numerous other off-label applications have been reported. OBJECTIVE: To describe the clinical uses of STS, as well as efficacy and adverse effects. METHODS: Review of studies searchable on PubMed from 1938 to 2016 describing clinical uses of STS to determine efficacy and adverse effects associated with various applications...
April 19, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28430678/laboratory-animal-bite-anaphylaxis-a-national-survey-part-1-case-series-and-review-of-the-literature
#3
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/28429307/emerging-approaches-to-food-desensitization-in-children
#4
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/28428784/the-roles-of-mast-cells-in-parasitic-protozoan-infections
#5
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/28423486/tick-host-conflict-immunoglobulin-e-antibodies-to-tick-proteins-in-patients-with-anaphylaxis-to-tick-bite
#6
Lourdes Mateos-Hernández, Margarita Villar, Angel Moral, Carmen García Rodríguez, Teresa Alfaya Arias, Verónica de la Osa, Francisco Feo Brito, Isabel G Fernández de Mera, Pilar Alberdi, Francisco Ruiz-Fons, Alejandro Cabezas-Cruz, Agustín Estrada-Peña, José de la Fuente
Tick-borne infectious diseases and allergies are a growing problem worldwide. Tick bite allergy has been associated with the direct effect of immunoglobulin E (IgE) response to tick salivary antigens, or secondary to the induction of allergy to red meat consumption through IgE antibodies against the carbohydrate α-Gal (Gal α 1-3Gal β 1-(3)4GlcNAc-R). However, despite the growing burden of this pathology, the proteins associated with anaphylaxis to tick bite have not been characterized. To address this question, a comparative proteomics approach was used to characterize tick proteins producing an IgE antibody response in a healthy individual with record of tick bites, which had not resulted in any allergic reactions, and two patients with anaphylactic reactions to Rhipicephalus bursa or Hyalomma marginatum tick bites...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422616/to-give-epinephrine-or-not-to-give-epinephrine-that-is-no-longer-the-question
#7
W Scott Russell, Sally Schoessler
It is vital that school nurses be able to assess students who are at risk for anaphylaxis and that nurses train school staff to identify the symptoms of a life-threatening allergic reaction. When a reaction occurs, school nurses and staff must be prepared to administer epinephrine immediately.
May 2017: NASN School Nurse
https://www.readbyqxmd.com/read/28414559/evaluating-the-cost-and-utility-of-mandating-schools-to-stock-epinephrine-auto-injectors
#8
Chelsea Steffens, Benjamin Clement, William Fales, Ahel El Haj Chehade, Kevin Putman, Robert Swor
BACKGROUND: The Michigan Legislature mandated that all public schools stock epinephrine auto-injectors (EAIs). A minimal amount is known regarding the incremental value of EAIs in schools. Our primary objective was to describe the frequency of administration of epinephrine for EMS patients with acute allergic reactions in public schools. Our secondary objective was to estimate the cost of mandating public schools to stock EAIs. METHODS: We performed a retrospective cohort study of EMS cases with an impression of allergic reaction and who received epinephrine recorded in the 2014 Michigan EMS Information System (MI-EMSIS)...
April 17, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28413507/anaphylactic-shock-caused-by-haemocoagulase-injection-in-china
#9
Haiwei Yang, Liming Yang, De-Wang Wang, Ji-Fu Wei, Shaoheng He
Haemocoagulase injection is a mixture of purified enzymes isolated from the venom of Bothrops atrox, which is used for the prevention and treatment of haemorrhage. It is a relatively safe pharmacological agent that does not require a skin test prior to administration. However, following a literature search, 14 reported cases of anaphylactic shock caused by haemocoagulase injection were identified, including one lethal case in China. Using SDS-PAGE and protein identification, four primary components in haemocoagulase injection were characterized, including one metalloproteinase, which may be a thromboplastin-like enzyme, and two serine proteinases, which may be thrombin-like enzymes...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28411930/marine-envenomation
#10
REVIEW
Kirsten B Hornbeak, Paul S Auerbach
Venomous aquatic animals are hazardous to swimmers, surfers, divers, and fishermen. Exposures include mild stings, bites, abrasions, and lacerations. Severe envenomations can be life threatening. This article reviews common marine envenomations, exploring causative species, clinical presentation, and current treatment recommendations. Recommendations are included for cnidaria, sponges, bristle worms, crown-of-thorns starfish, sea urchins, venomous fish, stingrays, cone snails, stonefish, blue-ringed octopus, and sea snakes...
May 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/28410699/anaphylaxis-to-rifampicin-and-pyrazinamide-in-a-child-with-tuberculous-meningitis-a-case-report
#11
Gulnaz Nadri, Sunil Taneja, Varinder Singh, Purvi Mittal
Rifampicin (RFP) and pyrazinamide (PZA) are the primary anti-tubercular drugs with a considerably safe profile. However, none of the drugs are without adverse reactions. They both can lead to a variety of adverse effects including life-threatening anaphylaxis. We report an interesting and possibly the first case of concurrent hypersensitivity to two primary anti-tubercular treatment (ATT) drugs. Hypersensitivity to RFP and PZA was confirmed in this patient by drug provocation and intradermal skin testing. He improved on alternative ATT regime withdrawing RFP and PZA...
April 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28410666/a-new-cyslt1-and-cyslt2-receptors-mediated-anaphylaxis-guinea-pig-model
#12
Tomohiko Sekioka, Michiaki Kadode, Noriko Osakada, Manabu Fujita, Naoya Matsumura, Yoshiyuki Yamaura, Shinji Nakade, Takeshi Nabe, Kazuhito Kawabata
Although the effectiveness of CysLT1 receptor antagonists on asthma has been clinically established, the effects of CysLT2 receptor antagonists are still unclear. The purpose of this study was to develop a new CysLT1 and CysLT2 receptors-mediated anaphylaxis guinea pig model using S-hexyl GSH, a γ-glutamyl transpeptidase (GTP) inhibitor, to suppress conversion of LTC4 to LTD4. Actively sensitized guinea pigs were challenged with OVA in the absence or presence of S-hexyl GSH, and survival rate following anaphylactic response was monitored...
April 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28409044/perioperative-anaphylaxis-to-chlorhexidine-during-surgery-and-septoplasty
#13
Ana Paula Teixeira de Abreu, Leonardo Ramos Ribeiro de Oliveira, Ana Flavia Teixeira de Abreu, Evandro Ribeiro de Oliveira, Michele Santos de Melo Ireno, Fernando Monteiro Aarestrup, Matheus Fonseca Aarestrup, Paula Fonseca Aarestrup
Chlorhexidine is an antiseptic and disinfectant used in surgical and clinical practice since 1954 and is available in aqueous or alcoholic solutions 0.5%-4.0% and has a broad-spectrum activity. Despite their widespread use, allergic reactions with chlorhexidine are rarely reported. We describe a case of anaphylaxis with chlorhexidine during a septoplasty, turbinectomy, and maxillary sinusectomy. The patient presented with periorbital edema, hives, hypotension, and wheezing. Immediately after the diagnosis of anaphylaxis promethazine, hydrocortisone, and epinephrine were administered with immediate clinical improvement...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28407952/common-food-colorants-and-allergic-reactions-in-children-myth-or-reality
#14
REVIEW
Gavriela Feketea, Sophia Tsabouri
Various additives, including food colorants (FCs), are used in the food industry to make food appealing to consumers and to add variety. Despite the widespread usage of FCs, adverse reactions related to their consumption, including reactions triggered by immune (immediate and delayed-type hypersensitivity) and non-immune (intolerance) mechanisms, are considered rare. There is a discrepancy between the perception of patients and parents (7.4%) and the reported prevalence of adverse reactions to additives (0...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28403561/iron-deficiency-anemia-in-chronic-kidney-disease-uncertainties-and-cautions
#15
Rajiv Agarwal
Anemia in chronic kidney disease is common and iron deficiency is an important cause. To repair iron-deficiency anemia, replacement of iron is needed. Iron can be replaced either by the oral route or by the intravenous route. In a meta-analysis, 5 of the 6 trials were short-term, 1 to 3 months, and compared to oral iron, the mean increase in hemoglobin with intravenous iron was only 0.31 g/dL. However, one of the studies included in this meta-analysis was 6 months long and had a mean decline in hemoglobin of 0...
April 12, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28398938/pediatric-anaphylaxis-in-the-emergency-department-clinical-presentation-quality-of-care-and-reliability-of-consensus-criteria
#16
Viginia L Goetz, Kelly Kim, Antonia S Stang
OBJECTIVES: The objective of this study was to describe the quality of emergency department (ED) care for pediatric patients with anaphylaxis. The secondary objectives were to describe (1) the clinical presentation of pediatric patients with anaphylaxis including the proportion of patients meeting each of the National Institute of Allergy and Infectious Diseases (NIAID) consensus criteria and subcriteria and (2) the Interrater reliability (IRR) for applying the NIAID criteria. METHODS: We conducted a retrospective cross-sectional chart review of patients seen in a pediatric ED during a 2-year period...
April 11, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28397432/evaluation-of-the-infliximab-therapy-of-severe-form-of-pediatric-crohn-s-disease-in-poland-retrospective-multicenter-studies
#17
Barbara M Iwańczak, Józef Ryżko, Piotr Jankowski, Małgorzata Sładek, Agata Wasilewska, Mariusz Szczepanik, Edyta Sienkiewicz, Anna Szaflarska-Popławska, Sabina Więcek, Grażyna Czaja-Bulsa, Bartosz Korczowski, Jolanta Maślana, Franciszek Iwańczak, Magdalena Kacperska
BACKGROUND: Registration of infliximab in Poland has increased chances to induce clinical remission and mucosal healing in the severe form of pediatric Crohn's disease. OBJECTIVES: The aim of this retrospective study was to assess the results and safety of infliximab therapy in the severe form of pediatric Crohn's disease. MATERIAL AND METHODS: The study included 153 children with severe form of non-fistulizing Crohn's disease treated with infliximab...
January 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28397379/b-fahf-2-plus-oral-immunotherapy-oit-is-safer-and-more-effective-than-oit-alone-in-a-murine-model-of-concurrent-peanut-tree-nut-allergy
#18
Kamal D Srivastava, Ying Song, Nan Yang, Changda Liu, Ilan E Goldberg, Anna Nowak-Węgrzyn, Hugh A Sampson, Xiu-Min Li
BACKGROUND: Concurrent sensitization to peanut (PN) and tree nuts (TN), the most dangerous food allergies, is common. Current oral immunotherapy (OIT) is not fully satisfactory. OBJECTIVE: To determine if the herbal formula B-FAHF-2 (BF2) ameliorates PN/TN OIT adverse reactions and enhances persistence of a tolerant state. METHODS: Concurrently sensitized peanut, walnut (WN) and cashew (CSH) allergic mice received 1 day PN/WN/CSH rush OIT plus 3 weeks of maintenance dosing, with or without 3-weeks prior and 3-weeks BF2 co-treatment...
April 11, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28396318/blocking-allergic-reaction-through-targeting-surface-bound-ige-with-low-affinity-anti-ige-antibodies
#19
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/28392808/consumer-preferences-for-food-allergen-labeling
#20
Carlo A Marra, Stephanie Harvard, Maja Grubisic, Jessica Galo, Ann Clarke, Susan Elliott, Larry D Lynd
BACKGROUND: Food allergen labeling is an important tool to reduce risk of exposure and prevent anaphylaxis for individuals with food allergies. Health Canada released a Canadian food allergen labeling regulation (2008) and subsequent update (2012) suggesting that research is needed to guide further iterations of the regulation to improve food allergen labeling and reduce risk of exposure. OBJECTIVE: The primary objective of this study was to examine consumer preferences in food labeling for allergy avoidance and anaphylaxis prevention...
2017: Allergy, Asthma, and Clinical Immunology
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