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Author(s):  
Ceren Can ◽  
Mehtap Yazicioglu ◽  
Selman Gokalp ◽  
Nese Ozkayin

Abstract Parvovirus B19 has a wide spectrum of clinical manifestations. Erythema multiforme and vasculitis are rarely reported with parvovirus B19 infections. Reactions to insect stings can range from local swelling to life-threatening systemic reactions. There have been rare reports of unusual reactions, such as vasculitis, occurring in a temporal relationship with insect stings. We report an 8-year-old patient having Parvovirus B-19-related erythema multiforme and vasculitis after a yellow jacket bee sting.


Author(s):  
Fatemeh BAGHERI ◽  
Mansoureh SHAYEGHI ◽  
Hassan VATANDOOST ◽  
Fatemeh NIKPOUR ALKARAN ◽  
Eslam MORADI ASL

The article's abstract is no available.


Toxins ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 323 ◽  
Author(s):  
Johannes Grosch ◽  
Christiane Hilger ◽  
Maria Beatrice Bilò ◽  
Stephanie Kler ◽  
Maximilian Schiener ◽  
...  

Allergic reactions to stings of Hymenoptera species can have serious or even fatal consequences. If the identification of the culprit insect is possible, venom-specific immunotherapy effectively cures Hymenoptera venom allergies. Although component-resolved diagnostics has strongly evolved in recent years, the differentiation between allergies to closely related species such as Polistes dominula and Vespula spp. is still challenging. In order to generate the basis for new diagnostic and therapeutic strategies, this study aims at resolving the venom proteomes (venomes) of these species. The venoms of P. dominula and Vespula spp. (V. germanica, V. vulgaris) were analyzed by liquid chromatography-mass spectrometry. Resulting proteins were characterized regarding their function, localization and biochemical properties. The analyses yielded 157 proteins in Vespula spp. and 100 in P. dominula venom; 48 proteins, including annotated allergens, were found in both samples. In addition to a variety of venom trace molecules, new allergen candidates such as icarapin-like protein and phospholipase A2 were identified. This study elucidates the venomes of closely related allergy-eliciting Hymenoptera species. The data indicates that relying on marker allergens to differentiate between P. dominula and Vespula spp. venom allergy is probably insufficient and that strategies using cross-reactive major allergens could be more promising.


2020 ◽  
Vol 192 ◽  
pp. 02027
Author(s):  
Slava Korolev ◽  
Alexsander Lavrov

The article discusses the mineral and geochemical features of the yellow Jacket ore Deposit located in Clark County, Nevada. Тhe Deposit differs significantly in many mineral and geochemical features from the deposits of dispersed gold ores belonging to the so-called Karlin formation type in compacted and locally weakly metamorphosed strata of carbonate rocks, mudstones and carbonated shales (carbonated turbidites). Positive results of analyses, including those with a cupellation (gravimetric) termination, were obtained in laboratories using non-standard approaches to sample preparation. Based on the working hypothesis of finding chemically bound dispersed gold in hematite-goethite films on the surface of quartz-chalcedony particles and internal microcracks, it was proposed to use active metastable chlorine-oxygen compounds to break the chemical bonds between iron atoms and clustered dispersed gold atoms and transfer it to a solution. In the liquid phase of the ore pulp with reagents added to it , after its activation treatment, the gold content, depending on its duration and intensity, varied in the range from 1.2 to 30 mg/l( at W:T=1:1).


2019 ◽  
Vol 119 ◽  
pp. 385-391 ◽  
Author(s):  
Joceline Rogé ◽  
Sébastien Laurent ◽  
Daniel Ndiaye ◽  
Isabelle Aillerie ◽  
Fabrice Vienne

2019 ◽  
Vol 40 (6) ◽  
pp. 372-375
Author(s):  
Elisa N. Ochfeld ◽  
Paul A. Greenberger

The Hymenoptera order is divided into three families: Apidae, Vespidae, and Formicidae. Apidae include the honeybee, bumblebee, and sweat bee, which are all docile and tend to sting mostly on provocation. The Africanized killer bee, a product of interbreeding between the domestic and African honeybee, is very aggressive and is mostly found in Mexico, Central America, Arizona, and California. The yellow jacket, yellow hornet, white (bald) faced hornet, and paper wasp all belong to the Vespidae family. The Formicidae family includes the harvester ant and the fire ant. When a “bee” sting results in a large local reaction, defined as >10 cm induration and lasting > 24 hours, the likelihood of anaphylaxis from a future sting is approximately 5%. For comparison, when there is a history of anaphylaxis from a previous Hymenoptera sting and the patient has positive skin test results to venom, at least 60% of adults and 20‐32% of children will develop anaphylaxis with a future sting. Both patient groups should be instructed about avoidance measures and about carrying and knowing when to self-inject epinephrine, but immunotherapy with Hymenoptera venom is indicated for those patients with a history of anaphylaxis from the index sting and not for patients who have experienced a large local reaction. Immunotherapy is highly effective in that, by 4 years of injections, the incidence of subsequent sting-induced reactions is 3%. This incidence may increase modestly after discontinuation of injections but has not been reported to be > 10% in follow up.


2019 ◽  
Vol 114 (1) ◽  
pp. S810-S811
Author(s):  
Narasimha Swamy Gollol Raju ◽  
Eslam Aboutaleb ◽  
Muhammad Ali ◽  
Eslam Ali

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