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https://www.readbyqxmd.com/read/29346656/host-responses-to-intestinal-nematodes
#1
Koubun Yasuda, Kenji Nakanishi
Helminth infection remains common in developing countries, where residents who suffer from the consequences of such infections can develop serious physical and mental disorders and often persist in the face of serious economic problems. Intestinal nematode infection induces the development of Th2-type immune responses including the B cell IgE response; additionally, this infection induces an increase in the numbers and activation of various types of effector cells, such as mast cells, eosinophils and basophils, as well as the induction of goblet cell hyperplasia, antimicrobial peptide production and smooth muscle contraction, all of which contribute to expel nematodes...
January 13, 2018: International Immunology
https://www.readbyqxmd.com/read/29339127/the-basophil-activation-test-can-be-of-value-for-diagnosing-immediate-allergic-reactions-to%C3%A2-omeprazole
#2
Jose J Laguna, Gador Bogas, Maria Salas, Cristobalina Mayorga, Javier Dionicio, Rosario Gonzalez-Mendiola, Adriana Ariza, Ruben Fernández-Santamaría, Isabel Olazabal, Inmaculada Doña, Tahia D Fernandez, Maria J Torres
BACKGROUND: Proton pump inhibitors (PPIs) are commonly used to treat gastrointestinal diseases. Incidence of hypersensitivity reactions to PPIs has risen, likely because of increased consumption. Their diagnosis is difficult, with skin tests (STs) presenting low sensitivity, making it necessary to perform drug provocation tests (DPTs). The value of in vitro tests for the diagnosis of immediate reaction to PPI is unclear. OBJECTIVE: To analyze the diagnostic value of the basophil activation test (BAT) in a group of patients diagnosed with immediate allergy to omeprazole...
January 12, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29337258/adding-injury-to-infection-the-relationship-between-injury-status-and-genetic-diversity-of-theileria-infecting-plains-zebra-equus-quagga
#3
Edward M King'ori, Vincent Obanda, Ephantus M Ndambiri, Steven M Runo, Patrick I Chiyo
Asymptomatic tick-borne infections are a common feature in wild herbivores. In human-dominated habitats, snare injuries to wild herbivores are common and are likely to co-occur with enzootic infections. The influence of injury on pattern, course and outcome of enzootic infection in wild herbivores is unknown. We identified Theileria species infecting zebra and assessed the relationship between host injury-status and parasitaemia, parasite diversity and selection regimes. We also determined host leucocyte differential as this can reveal mechanisms by which injuries influence infections...
January 11, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29336005/degranulation-inhibitors-from-the-arils-of-myristica-fragrans-in-antigen-stimulated-rat-basophilic-leukemia-cells
#4
Toshio Morikawa, Ikuko Hachiman, Kiyofumi Ninomiya, Hiroki Hata, Kaoru Sugawara, Osamu Muraoka, Hisashi Matsuda
A methanol extract of mace, the aril of Myristica fragrans (Myristicaceae), was found to inhibit the release of β-hexosaminidase, a marker of antigen-IgE-stimulated degranulation in rat basophilic leukemia cells (RBL-2H3, IC50 = 45.7 μg/ml). From the extract, three new 8-O-4' type neolignans, maceneolignans I-K (1-3), were isolated, and the stereostructures of 1-3 were elucidated based on spectroscopic and chemical evidence. Among the isolates, maceneolignans A (5), D (6), and H (8), (-)-(8R)-∆8'-4-hydroxy-3,3',5'-trimethoxy-8-O-4'-neolignan (13), (-)-(8R)-∆8'-3,4,5,3',5'-pentamethoxy-8-O-4'-neolignan (14), (-)-erythro-(7R,8S)-∆8'-7-acetoxy-3,4-methylenedioxy-3',5'-dimethoxy-8-O-4'-neolignan (17), (+)-licarin A (20), nectandrin B (24), verrucosin (25), and malabaricone C (29) were investigated as possible degranulation inhibitors (IC50 = 20...
January 15, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29330012/basophil-testing-with-cd63-in-pollen-sensitised-patients-is-independent-of-the-circadian-clock
#5
Cecilie Lind, Søren Helbo Skaarup, Axel Lorentz, Hans Jürgen Hoffmann
No abstract text is available yet for this article.
January 9, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29323266/aif-loss-deregulates-hematopoiesis-and-reveals-different-adaptive-metabolic-responses-in-bone-marrow-cells-and-thymocytes
#6
Lauriane Cabon, Audrey Bertaux, Marie-Noëlle Brunelle-Navas, Ivan Nemazanyy, Laurianne Scourzic, Laure Delavallée, Laura Vela, Mathieu Baritaud, Sandrine Bouchet, Cécile Lopez, Vu Quang Van, Kevin Garbin, Danielle Chateau, Françoise Gilard, Marika Sarfati, Thomas Mercher, Olivier A Bernard, Santos A Susin
Mitochondrial metabolism is a tightly regulated process that plays a central role throughout the lifespan of hematopoietic cells. Herein, we analyze the consequences of the mitochondrial oxidative phosphorylation (OXPHOS)/metabolism disorder associated with the cell-specific hematopoietic ablation of apoptosis-inducing factor (AIF). AIF-null (AIF-/Y ) mice developed pancytopenia that was associated with hypocellular bone marrow (BM) and thymus atrophy. Although myeloid cells were relatively spared, the B-cell and erythroid lineages were altered with increased frequencies of precursor B cells, pro-erythroblasts I, and basophilic erythroblasts II...
January 11, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29322795/analysis-of-dna-methylation-and-microrna-expression-in-nut-nuclear-protein-in-testis-midline-carcinoma-of-the-sinonasal-tract-a-clinicopathological-immunohistochemical-and-molecular-genetic-study
#7
J Laco, H Kovarikova, M Chmelarova, H Vosmikova, K Sieglova, I Bubancova, P Dundr, K Nemejcova, J Michalek, P Celakovsky, R Mottl, I Sirak, M Vosmik, I Marek, T Geryk, J Mejzlik, J Satankova, A Ryska
The aim of this study was a detailed clinicopathological investigation of sinonasal NUT midline carcinoma (NMC), including analysis of DNA methylation and microRNA (miRNA) expression. Three (5%) cases of NMC were detected among 56 sinonasal carcinomas using immunohistochemical screening and confirmed by fluorescence in situ hybridization. The series comprised 2 males and 1 female, aged 46, 60, and 65 years. Two tumors arose in the nasal cavity and one in the maxillary sinus. The neoplasms were staged pT1, pT3, and pT4a (all cN0M0)...
2018: Neoplasma
https://www.readbyqxmd.com/read/29319188/immunoprofile-of-%C3%AE-gal-and-b-antigen-specific-responses-differentiate-red-meat-allergic-patients-from-healthy-individuals
#8
Danijela Apostolovic, Rui Da Silva Rodrigues, Preethi Thomas, Maria Starkhammar, Carl Hamsten, Marianne van Hage
BACKGROUND: The Galactose-α-1,3-galactose (α-Gal) epitope is involved in red meat allergy. As α-Gal is structurally similar to the blood group B antigen, we explored the relationship between the immune responses to α-Gal- and the B-antigen in red meat allergic patients compared to healthy A/O or B blood donors. METHODS: Sera from 51 red meat allergic patients IgE positive to α-Gal and 102 healthy blood donors (51 blood group A/O; 51 blood group B), were included...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29315616/in-chronic-spontaneous-urticaria-ige-against-staphylococcal-enterotoxins-is-common-and-functional
#9
S Altrichter, T Hawro, M Liedtke, G Holtappels, C Bachert, P S Skov, M Maurer
BACKGROUND: Chronic spontaneous urticaria (CSU) is a frequent disorder with recurrent itchy wheals and/or angioedema. Despite the known effectiveness of omalizumab therapy, the relevant IgE antigens are largely unknown. Recently, increased rates of elevated levels of IgE towards Staphylococcus aureus enterotoxins (SEs) were described in CSU. AIM: To assess the prevalence and functional relevance of IgE to SEs in CSU. METHOD: We investigated serum levels of IgE against SEs in 49 CSU patients and in 15 CSU patients additional specific IgE to SE components and basophil histamine release (BHR)...
January 9, 2018: Allergy
https://www.readbyqxmd.com/read/29315611/isolation-of-a-high-affinity-bet-v-1-specific-igg-derived-scfv-from-a-subject-vaccinated-with-hypoallergenic-bet-v-1-fragments
#10
Elisabeth Gadermaier, Katharina Marth, Christian Lupinek, Raffaela Campana, Gerhard Hofer, Katharina Blatt, Dubravka Smiljkovic, Uwe Roder, Margarete Focke-Tejkl, Susanne Vrtala, Walter Keller, Peter Valent, Rudolf Valenta, Sabine Flicker
BACKGROUND: Recombinant hypoallergenic allergen derivatives have been used in clinical immunotherapy studies and clinical efficacy seems to be related to the induction of blocking IgG antibodies recognizing the wild type allergens. However, so far no treatment-induced IgG antibodies have been characterized. OBJECTIVE: To clone, express and characterize IgG antibodies induced by vaccination with two hypoallergenic recombinant fragments of the major birch pollen allergen, Bet v 1 in a non-allergic subject...
January 9, 2018: Allergy
https://www.readbyqxmd.com/read/29315532/treatment-of-mcpt8dtr-mice-with-high-or-low-dose-diphtheria-toxin-leads-to-differential-depletion-of-basophils-and-granulocyte-macrophage-progenitors
#11
Carole El Hachem, Pierre Hener, Peggy Kirstetter, Jiagui Li, Susan Chan, Mei Li
Basophils have been recently recognized to play important roles in type 2 immune responses during allergies and parasitic infection, largely due to the development of novel tools for the in vivo study of these cells. As such, the genetically-engineered MCPT8DTR mouse line has been used to specifically deplete basophils following treatment with diphtheria toxin (DT). In this study, we showed that DT-injected MCPT8DTR mice exhibited a striking decrease of eosinophils and neutrophils in skin when subjected to a hapten fluorescein isothiocyanate (FITC)-induced allergic contact dermatitis (ACD) experimental protocol...
January 8, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29308523/-use-of-visual-analogue-scale-and-pain-related-factors-to-evaluate-the-impact-of-different-orthodontic-forces-on-human-dental-pulp-in-patients-who-underwent-fixed-dental-treatment
#12
Wan-Hong Chen, Shi-Xiong Cai, Yu-Huan Sun
PURPOSE: To investigate the role of visual analogue scale (VAS) and pain-related factors, like tumor necrosis factor-alpha (TNF-α), interleukin-8 (IL- 8), interleukin-6 (IL-6) and interleukin-1 beta (IL-1β) in evaluation of the impact of different orthodontic forces on human dental pulp in patients who underwent fixed dental treatment. METHODS: From January 2014 to April 2015, 156 patients with maxillary bilateral premolar treated with tooth fixed were randomly divided into 4 groups, 42 patients in control group, 40 patients in 100 g-force group, 40 patients in 150 g-force group, and 39 in 200 g-force group...
October 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29305332/morphological-and-functional-characterization-of-hemocytes-from-two-deep-sea-vesicomyid-clams-phreagena-okutanii-and-abyssogena-phaseoliformis
#13
Akihiro Tame, Genki Ozawa, Tadashi Maruyama, Takao Yoshida
Deep-sea vesicomyid clams harboring intracellular symbiotic sulfur-oxidizing bacteria are often dominant in chemosynthetic animal communities. Although they are known to have erythrocytes, little is known about other hemocytes. To investigate the types and roles of various hemocytes in vesicomyid clams, we performed morphological, histochemical and functional characterization of the hemocytes in two species, Phreagena okutanii, collected from 873 to 978 m depth, and Abyssogena phaseoliformis, from 5199 to 5355 m...
January 2, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29298707/shuang-huang-lian-prevents-basophilic-granulocyte-activation-to-suppress-th2-immunity
#14
Qiaoling Fei, Yixin Han, Ruijuan Qi, Yuan Gao, Lei Fang, Rui Hou, Runlan Cai, Yun Qi
BACKGROUND: Basophilic granulocytes (BGs) not only initiate the induction of Th2 cell differentiation, but also amplify the ongoing Th2 response. Shuang-Huang-Lian (SHL) is clinically used for relieving type I hypersensitivity by continuous treatment for several weeks. METHODS: ELISA, flow cytometry, magnetic activated cell sorting, isoelectric precipitation, hybridoma technique, transfection and luciferase reporter assay were used in this study. The statistical analysis was performed using a one-way ANOVA...
January 3, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29297805/the-effects-of-migratory-flight-on-hematologic-parameters-in-northern-bald-ibises-geronticus-eremita
#15
Gabriela Stanclova, Ilse Schwendenwein, Olaf Merkel, Lukas Kenner, John Dittami, Johannes Fritz, Alexandra Scope
Under the project of "Human-Led Migration," the authors had the unique opportunity to accompany hand-raised northern bald Iibises (NBIs; Geronticus eremita) during migration, which occurred in stages from Bavaria, Germany, to southern Tuscany, Italy. The aim of this study was to investigate the immediate effects of flight, with respect to flight duration, and the more delayed recovery effects on hematologic variables. A total of 31 birds were sampled. Blood samples were taken immediately before takeoff, after landing, and 1 day after the flight...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29295972/trapping-ige-in-a-closed-conformation-by-mimicking-cd23-binding-prevents-and-disrupts-fc%C3%AE%C2%B5ri-interaction
#16
Frederic Jabs, Melanie Plum, Nick S Laursen, Rasmus K Jensen, Brian Mølgaard, Michaela Miehe, Marco Mandolesi, Michèle M Rauber, Wolfgang Pfützner, Thilo Jakob, Christian Möbs, Gregers R Andersen, Edzard Spillner
Anti-IgE therapeutics interfere with the ability of IgE to bind to its receptors on effector cells. Here we report the crystal structure of an anti-IgE single-domain antibody in complex with an IgE Fc fragment, revealing how the antibody inhibits interactions between IgE and the two receptors FcεRI and CD23. The epitope overlaps only slightly with the FcεRI-binding site but significantly with the CD23-binding site. Solution scattering studies of the IgE Fc reveal that antibody binding induces a half-bent conformation in between the well-known bent and extended IgE Fc conformations...
January 2, 2018: Nature Communications
https://www.readbyqxmd.com/read/29291227/investigation-and-confirmation-of-white-spot-syndrome-virus-wssv-infection-in-wild-caught-penaeid-shrimps-of-andaman-and-nicobar-islands-india
#17
K Saravanan, P Puneeth Kumar, J Praveenraj, Arunjyoti Baruah, T Sivaramakrishnan, T Sathish Kumar, S Pramod Kumar, R Kiruba Sankar, S Dam Roy
White spot syndrome virus (WSSV) is one of the most prevalent, widespread and devastating pathogen associated with shrimp population. The present study was aimed at screening the wild caught shrimps from Andaman and Nicobar Islands (ANI) for WSSV infection. Shrimp samples of different penaeid species including Penaeus monodon, Penaeus indicus, Penaeus merguiensis and Metapenaeus monoceros collected from nine different landing centers across the coast of ANI were screened for WSSV infection. Presence of white spots, a typical clinical sign of white spot disease was observed on the exoskeleton of WSSV infected shrimp samples...
December 2017: Virusdisease
https://www.readbyqxmd.com/read/29287841/hematological-profile-associated-with-type-2-diabetes-mellitus
#18
Youssouf Kachekouche, Madjda Dali-Sahi, Djamel Benmansour, Nouria Dennouni-Medjati
BACKGROUND: Hematological changes affecting blood cells and the coagulation factors are shown to be associated with diabetes mellitus. We investigated some of the hematological risk factors implicated in the development of type 2 diabetes mellitus. METHODS: The study conducted in western Algeria on a sample of 1852 subjects, 1059 with type 2 diabetes and 793 witnesses, were evaluated for peripheral blood parameters using hematology analyzer. All the informations related to the disease were collected from the patients and recorded using predesigned questionnaire...
December 21, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29287414/thermal-processing-effects-on-the-ige-reactivity-of-cashew-and-pistachio
#19
Africa Sanchiz, Carmen Cuadrado, Maria Carmen Dieguez, Isabel Ballesteros, Julia Rodríguez, Jesus F Crespo, Natividad de Las Cuevas, Julia Rueda, Rosario Linacero, Beatriz Cabanillas, Natalija Novak
Thermal processing can modify the structure and function of food proteins and may alter their allergenicity. This work aimed to elucidate the influence of moist thermal treatments on the IgE-reactivity of cashew and pistachio. IgE-western blot and IgE-ELISA were complemented by Skin Prick Testing (SPT) and mediator release assay to determine the IgE cross-linking capability of treated and untreated samples. Moist thermal processing diminished the IgE-binding properties of both nuts, especially after heat/pressure treatment...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29285959/kyrle-s-disease-effectively-treated-with-oral-isotretinoin
#20
Martina Maurelli, Paolo Gisondi, Giampiero Girolomoni
BACKGROUND: Kyrle's disease is a primary perforating dermatosis that affects more commonly 30-50 year old females, and clinically characterized by pruritic hyperkeratotic and ulcerated nodules, papules and plaques, localized on extensor surface of upper and lower limbs, and on the trunk. OBJECTIVE: To determine the effectiveness of the treatment with oral isotretinoin in Kyrle's disease. METHODS: We present the case of a 63-year-old woman with hyperkeratotic, erythematous-brown nodules and plaques localized on arms and legs, intensely itching; some lesions were ulcerated and discharging...
December 29, 2017: Journal of Dermatological Treatment
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