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https://www.readbyqxmd.com/read/28633925/the-discovery-of-plasma-cells-an-historical-note
#1
REVIEW
Domenico Ribatti
The name plasma cell was introduced by the anatomist Heinrich H. von Hartz-Waldeyer in 1875. Plasma cells derive from small B lymphocytes after their activation. A fully mature plasma cell lacks surface immunoglobulin expression. Its form is round or oval, with characteristic basophilic cytoplasm and an eccentric nucleus that contains coarse heterochromatin. Antigen activation of mature B cells leads initially to germinal center development, the transient generation of plasmablasts that secrete antibody while still dividing, and short-lived extrafollicular plasma cells that secrete antigen-specific germ line-encoded antibodies...
June 17, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28630774/lead-poisoning-can-be-easily-misdiagnosed-as-acute-porphyria-and-nonspecific-abdominal-pain
#2
Ming-Ta Tsai, Shi-Yu Huang, Shih-Yu Cheng
Lead poisoning (LP) is less commonly encountered in emergency departments (ED). However, lead exposure still occurs, and new sources of poisoning have emerged. LP often goes unrecognized due to a low index of suspicion and nonspecific symptoms. We present a case of a 48-year-old man who had recurring abdominal pain with anemia that was misdiagnosed. His condition was initially diagnosed as nonspecific abdominal pain and acute porphyria. Acute porphyria-like symptoms with a positive urine porphyrin test result led to the misdiagnosis; testing for heme precursors in urine is the key to the differential diagnosis between LP and acute porphyria...
2017: Case Reports in Emergency Medicine
https://www.readbyqxmd.com/read/28628008/basophil-histamine-release-to-amoxicilloyl-poly-l-lysine-compared-to-amoxicillin-in-patients-with-ige-mediated-allergic-reactions-to-amoxicillin
#3
F Arribas, S Falkencrone, J Sola, M P Gomez-Serranillos, J J Laguna, M I Montañez, T D Fernandez, D Rodríguez, F Pineda, P Stahl Skov, C Mayorga, M J Torres
BACKGROUND: Amoxicillin (AX) is the betalactam most often involved in IgE-mediated reactions and the diagnosis is mainly based on skin testing (ST) although without optimal sensitivity. We have produced a newly AX derivative, amoxicilloyl-poly-L-lysine (APL), and have analysed its IgE recognition by passive histamine release test (pHRT). METHODS: Patients (N=19) with confirmed AX allergy and with specific IgE positive to AX and controls (N=10) with good tolerance to AX were included...
June 19, 2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28625236/-eosinophil-could-predict-the-prognosis-of-patients-with-bloodstream-infection-a-retrospective-analysis-of-305-cases
#4
Duan Guo, Chao Jia, Hang Su
OBJECTIVE: To investigate the value of peripheral blood for the prognosis of patients with bloodstream infection. METHODS: A retrospective analysis of patients with bloodstream infection was conducted in the intensive care unit (ICU) of Mianyang Central Hospital of Sichuan from January 2012 to October 2016. According to the 28-day survival, the patients were divided into survival group and death group. The white blood cell (WBC), neutrophils count (NEU), lymphocyte count (LYM), neutrophil/lymphocyte ratio (NLR), monocyte count (MO), eosinophil count (EO), basophil count (BA), hemoglobin (Hb), platelet count (PLT) and procalcitonin (PCT) in peripheral blood were recorded when patients were diagnosed with blood infection...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28623996/functional-polymorphism-rs1024611-in-the-mcp1-gene-is-associated-with-the-risk-of-varicose-veins-of-lower-extremities
#5
Alexandra S Shadrina, Mariya A Smetanina, Kseniya S Sevost'ianova, Evgenii I Seliverstov, Evgeny A Ilyukhin, Elena N Voronina, Igor A Zolotukhin, Maxim L Filipenko
OBJECTIVE: Monocyte chemoattractant protein 1 (MCP-1) is a chemokine responsible for monocyte, basophil, and T-lymphocyte attraction. Polymorphism rs1024611 located in the regulatory region of the MCP1 gene has previously been shown to be associated with increased MCP-1 production. In our study, we aimed to examine the association of rs1024611 with the risk of primary varicose veins (PVVs) of lower extremities. METHODS: The case group comprised 470 patients with PVVs, and the control group included 269 individuals without a history of chronic venous disease...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28623338/high-resolution-imaging-of-a-cell-attached-nanointerface-using-a-gold-nanoparticle-two-dimensional-sheet
#6
Shihomi Masuda, Yuhki Yanase, Eiji Usukura, Sou Ryuzaki, Pangpang Wang, Koichi Okamoto, Thasaneeya Kuboki, Satoru Kidoaki, Kaoru Tamada
This paper proposes a simple, effective, non-scanning method for the visualization of a cell-attached nanointerface. The method uses localized surface plasmon resonance (LSPR) excited homogeneously on a two-dimensional (2D) self-assembled gold-nanoparticle sheet. The LSPR of the gold-nanoparticle sheet provides high-contrast interfacial images due to the confined light within a region a few tens of nanometers from the particles and the enhancement of fluorescence. Test experiments on rat basophilic leukemia (RBL-2H3) cells with fluorescence-labeled actin filaments revealed high axial and lateral resolution even under a regular epifluorescence microscope, which produced higher quality images than those captured under a total internal reflection fluorescence (TIRF) microscope...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28620106/coarse-basophilic-stippling-in-lead-poisoning
#7
Nelson C N Chan, K P Chan
No abstract text is available yet for this article.
June 15, 2017: Blood
https://www.readbyqxmd.com/read/28618975/a-black-cohosh-extract-causes-hematologic-and-biochemical-changes-consistent-with-a-functional-cobalamin-deficiency-in-female-b6c3f1-n-mice
#8
Michelle C Cora, William Gwinn, Ralph Wilson, Debra King, Suramya Waidyanatha, Grace E Kissling, Sukhdev S Brar, Dorian Olivera, Chad Blystone, Greg Travlos
Black cohosh rhizome, available as a dietary supplement, is most commonly marketed as a remedy for dysmenorrhea and menopausal symptoms. A previous subchronic toxicity study of black cohosh dried ethanolic extract (BCE) in female mice revealed a dose-dependent ineffective erythropoiesis with a macrocytosis consistent with the condition known as megaloblastic anemia. The purpose of this study was to investigate potential mechanisms by which BCE induces these particular hematological changes. B6C3F1/N female mice (32/group) were exposed by gavage to vehicle or 1,000 mg/kg BCE for 92 days...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28618453/data-driven-programmatic-approach-to-analysis-of-basophil-activation-tests
#9
Sarita U Patil, Augustin Calatroni, Michael Schneider, Johanna Steinbrecher, Neal Smith, Cecilia Washburn, Alex Ma, Wayne G Shreffler
BACKGROUND: Conventional data analysis of flow cytometry-based basophil activation testing requires repetitive, labor-intensive analysis that hampers efforts to standardize testing for clinical applications. Using an open-source platform, we developed and implemented a programmatic approach to the analysis of the basophil activation test (BAT) by flow cytometry. METHODS: Using the BÜHLMANN FlowCAST® assay, peripheral blood from peanut allergic patients undergoing oral immunotherapy was incubated with peanut allergens (Arah1, Arah2, Arah6, whole peanut extract) and stained with fluorescent antibodies to CCR3 and CD63 for the development of a data-driven programmatic analysis using Bioconductor and R...
June 15, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28618148/mechanisms-underlying-induction-of-allergic-sensitization-by-pru-p-3
#10
Leticia Tordesillas, Nuria Cubells-Baeza, Cristina Gómez-Casado, Cecilia Berin, Vanesa Esteban, Weronika Barcik, Liam O'Mahony, Carmen Ramirez, Luis F Pacios, María Garrido-Arandia, Araceli Díaz-Perales
BACKGROUND: Recently, the nature of the lipid-ligand of Pru p 3, one of the most common plant food allergens in Southern Europe, has been identified as a derivative of the alkaloid camptothecin bound to phytosphingosine. However, the origin of its immunological activity is still unknown. OBJECTIVE: We sought to evaluate the role of the Pru p 3 lipid- ligand in the immunogenic activity of Pru p 3. METHODS: In vitro cultures of different cell types (monocyte-derived dendritic cells (moDCs), PBMCs and epithelial and iNKT-hybridoma cell lines) have been used to determine the immunological capacity of the ligand, by measuring cell proliferation, maturation markers and cytokine production...
June 15, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28618090/roadmap-for-the-clinical-application-of-the-basophil-activation-test-in-food-allergy
#11
Alexandra F Santos, Wayne G Shreffler
The diagnosis of IgE-mediated food allergy based solely on the clinical history and the documentation of specific IgE to whole allergen extract or single allergens is often ambiguous, requiring oral food challenges (OFC), with the attendant risk and inconvenience to the patient, to confirm the diagnosis of food allergy. This is a considerable proportion of patients assessed in Allergy clinics. The basophil activation test (BAT) has emerged as having superior specificity and comparable sensitivity to diagnose food allergy, when compared with skin prick test and specific IgE...
June 15, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28616446/treatment-with-anti-fc%C3%AE%C2%B5ri%C3%AE-antibody-exacerbates-eae-and-t-cell-immunity-against-myelin
#12
Silvia Musio, Massimo Costanza, Pietro Luigi Poliani, Elena Fontana, Manuela Cominelli, Gabriella Abolafio, Lawrence Steinman, Rosetta Pedotti
OBJECTIVE: To investigate the effects of targeting the high-affinity receptor for immunoglobulin E (FcεRI), that plays a central role in allergic responses and is constitutively expressed on mast cells and basophils, in clinical disease and autoimmune T-cell response in experimental MS. METHODS: Experimental autoimmune encephalomyelitis (EAE) was induced in C57BL/6 mice by immunization with myelin oligodendrocyte glycoprotein 35-55. Anti-FcεRI α-chain antibody was administered intraperitoneally...
May 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28615835/haematological-changes-in-south-indian-fresh-water-murrel-channa-punctatus-have-both-eus-and-a-hydrophila-infection
#13
Koteshwar Rao Podeti, G Benarjee
The mixed infection in fishes is a common feature and in this Pathogens like Bacteria, Fungi and Protozoan's are found together to cause ill health to the fishes known as Epizootic Ulcerative Syndrome (EUS). In this syndrome the low temperature and aquatic pollution aggravates the infection in fishes. In the present study the fresh water edible fish, Channa punctatus (Murrel) was found infected with the bacteria namely, Aeromonas hydrophila, Staphylococcus aureus, Pseudomonas aeruginosa and Salmonella salmonicida...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28615320/differential-phosphorylation-signals-control-endocytosis-of-gpr15
#14
Yukari Okamoto, Sojin Shikano
GPR15 is an orphan G protein-coupled receptor (GPCR) that serves for an HIV coreceptor and was also recently found as a novel homing receptor for T cells implicated in colitis. We show that GPR15 undergoes a constitutive endocytosis in the absence of ligand. The endocytosis was clathrin-dependent and partially dependent on β-arrestin in HEK293 cells, and nearly half of the internalized GPR15 receptors were recycled to the plasma membrane. Ala mutation of the distal C-terminal Arg(354) or Ser(357), which forms a consensus phosphorylation site for basophilic kinases, markedly reduced the endocytosis while phosphomimetic mutation of Ser(357) to Asp did not...
June 14, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28612233/targeting-the-pgd2-crth2-dp1-signaling-pathway-in-asthma-and-allergic-disease-current-status-and-future-perspectives
#15
Maciej Kupczyk, Piotr Kuna
Prostaglandin D2 (PGD2) released by degranulating mast cells is believed to play a key role in orchestrating mechanisms of inflammation in allergies and asthma. The biological effects of PGD2 are mediated by D-prostanoid (DP1), CRTH2 (DP2), and thromboxane prostanoid (TP) receptors. The CRTH2 receptor is involved in induction of migration and activation of T helper type 2 (Th2) lymphocytes, eosinophils, and basophils; up-regulation of adhesion molecules; and promotion of pro-inflammatory Th2-type cytokines (interleukin [IL]-4, 5, 13), whereas the DP receptor is associated with relaxation of smooth muscles, vasodilation, inhibition of cell migration, and apoptosis of eosinophils...
June 13, 2017: Drugs
https://www.readbyqxmd.com/read/28611774/epidemiology-mechanisms-and-diagnosis-of-drug-induced-anaphylaxis
#16
REVIEW
Maria Isabel Montañez, Cristobalina Mayorga, Gador Bogas, Esther Barrionuevo, Ruben Fernandez-Santamaria, Angela Martin-Serrano, Jose Julio Laguna, Maria José Torres, Tahia Diana Fernandez, Inmaculada Doña
Anaphylaxis is an acute, life-threatening, multisystem syndrome resulting from the sudden release of mediators by mast cells and basophils. Although anaphylaxis is often under-communicated and thus underestimated, its incidence appears to have risen over recent decades. Drugs are among the most common triggers in adults, being analgesics and antibiotics the most common causal agents. Anaphylaxis can be caused by immunologic or non-immunologic mechanisms. Immunologic anaphylaxis can be mediated by IgE-dependent or -independent pathways...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28606590/a-new-fluorescent-avidin-based-method-for-quantifying-basophil-activation-in-whole-blood
#17
Kaori Mukai, R Sharon Chinthrajah, Kari C Nadeau, Mindy Tsai, Nicolas Gaudenzio, Stephen J Galli
We report herein a simple new fluorescent-avidin-based method to detect activated basophils in the whole blood of normal or allergic subjects, and compare this method to a basophil activation test based on detection of CD63.
June 9, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28604134/impact-of-exposure-time-particle-size-and-uptake-pathway-on-silver-nanoparticle-effects-on-circulating-immune-cells-in-mytilus-galloprovincialis
#18
Younes Bouallegui, Ridha Ben Younes, Faten Turki, Ridha Oueslati
Nanomaterials have increasingly emerged as potential pollutants to aquatic organisms. Nanomaterials are known to be taken up by hemocytes of marine invertebrates including Mytilus galloprovincialis. Indeed, assessments of hemocyte-related parameters are a valuable tool in the determination of potentials for nanoparticle (NP) toxicity. The present study assessed the effects from two size types of silver nanoparticles (AgNP: <50 nm and <100 nm) on the frequency of hemocytes subpopulations as immunomodulation biomarkers exposed in a mollusk host...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28600891/spontaneous-food-allergy-in-was-mice-occurs-independent-of-fc%C3%AE%C2%B5ri-mediated-mast-cell-activation
#19
Willem S Lexmond, Jeremy A Goettel, Benjamin F Sallis, Katelyn McCann, Edmond H H M Rings, Erika Jensen-Jarolim, Samuel Nurko, Scott B Snapper, Edda Fiebiger
BACKGROUND: Food allergies are a growing health problem and the development of therapies that prevent disease onset is limited by the lack of adjuvant-free experimental animal models. We compared allergic sensitization in patients with food allergy or Wiskott-Aldrich syndrome (WAS) and defined whether spontaneous disease in Was(-/-) mice recapitulates the pathology of a conventional disease model and/or human food allergy. METHODS: Comparative ImmunoCAP ISAC microarray was performed in patients with food allergy or WAS...
June 10, 2017: Allergy
https://www.readbyqxmd.com/read/28598511/evaluating-atlantic-bottlenose-dolphin-tursiops-truncatus-leukocyte-differential-counts-comparing-the-cellavision-dm96-and-the-manual-method
#20
Julia Zaias, Christine Bradley, Jill Richardson, Holli C Eskelinen, Frances Ikpatt, Carolyn Cray
BACKGROUND: The leukocyte differential count is an excellent diagnostic tool; however, the manual differential count has several drawbacks, especially for nontraditional species. Automated cell analyzers commonly used in veterinary practices require species-specific validation for use in nondomestic species other than dogs and cats. OBJECTIVES: The purpose of this study was to examine the potential of the CellaVision DM96 (DM96), an automated image analysis system, as a rapid and accurate method for providing a WBC differential count in comparison to the manual WBC differential count in bottlenose dolphins...
June 9, 2017: Veterinary Clinical Pathology
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