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https://www.readbyqxmd.com/read/28821308/influence-of-gamma-irradiation-on-porcine-serum-albumin-structural-properties-and-allergenicity
#1
Xudong Zhu, Wei Wang, Juan Shen, Xinglian Xu, Guanghong Zhou
Pork provides an ideal source of food energy; however, pork can elicit an allergic reaction, and porcine serumalbumin (PSA) has been identified as a major allergen. This study examined the impact of gamma irradiation on the allergenicity and structural qualities of PSA; the PSA solution was gamma-irradiated at 1, 2, 4, 6, and 8 kGy. Allergenicity was investigated by immunoblotting and competitive indirect ELISA using serum from patients who are allergic to pork, and conformational changes in irradiated PSA were measured by circular dichroism, sulfhydryl group detection, and fluorescence emission spectra...
August 18, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28817198/valuable-antibody-detection-method-for-classifying-hepatitis-e-virus-genotypes
#2
Chenyan Zhao, Yansheng Geng, Weijing Huang, Hongxia Ma, Youchun Wang
Nucleotide-based methods are conventionally used to classify the hepatitis E virus (HEV) genotypes. A serological enzyme immunoassay (EIA) using open reading frame 3 (ORF3) C-terminal peptides was developed to conveniently and accurately classify and evaluate the genotypes of HEV. The sera of mice immunized with HEV genotype 1, 3 and 4 reacted highly specifically to the peptides of the corresponding genotypes. Most (84.2%) clinical sera infected with HEV genotype 4 were positive for anti-HEV antibodies when tested with the ORF3 peptides of genotype 4, but were negative for genotypes 1 and 3...
August 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28814851/effect-of-allergic-phenotype-on-treatment-response-to-inhaled-bronchodilators-with-or-without-inhaled-corticosteroids-in-patients-with-copd
#3
Shih-Lung Cheng, Hsu Hui Wang, Ching-Hsiung Lin
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a heterogeneous disorder encompassing different phenotypes with different responses to treatment. The present 1-year, two-center hospital-based study investigated whether the plasma immunoglobulin E (IgE) level and/or eosinophil cell count could be used as biomarkers to stratify patients with COPD according to predicted responses to inhaled corticosteroids (ICS)-based therapy. METHODS: A hospital-data based cohort study of COPD patients treated at two territory hospital centers was conducted for 1 year...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28814355/der-p-1-and-der-p-2-specific-immunoglobulin-e-measurement-for-diagnosis-of-dermatophagoides-pteronyssinus-allergy-a-systematic-review-and-meta-analysis
#4
Man Tian, Ying Zhou, Wenxin Zhang, Yubao Cui
BACKGROUND: A clinical history of allergic symptoms and a skin-prick test with house-dust mite crude extracts are standard diagnostic procedures for Dermatophagoides pteronyssinus allergy. Specific immunoglobulin E (IgE) responses to Der p 1 and Der p 2 allergens have been used for the diagnosis of D. pteronyssinus allergy; however, evaluation of the diagnostic performance of Der p 1 and Der p 2 specific IgE (sIgE) produced inconsistent findings. We sought to evaluate the diagnostic accuracy of Der p 1 sIgE and Der p 2 sIgE measurement in the diagnosis of D...
September 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28811324/the-transcriptional-program-functional-heterogeneity-and-clinical-targeting-of-mast-cells
#5
REVIEW
Gökhan Cildir, Harshita Pant, Angel F Lopez, Vinay Tergaonkar
Mast cells are unique tissue-resident immune cells that express an array of receptors that can be activated by several extracellular cues, including antigen-immunoglobulin E (IgE) complexes, bacteria, viruses, cytokines, hormones, peptides, and drugs. Mast cells constitute a small population in tissues, but their extraordinary ability to respond rapidly by releasing granule-stored and newly made mediators underpins their importance in health and disease. In this review, we document the biology of mast cells and introduce new concepts and opinions regarding their role in human diseases beyond IgE-mediated allergic responses and antiparasitic functions...
August 15, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28811266/expression-and-purification-of-a-difficult-sarcomeric-protein-telethonin
#6
Huanbo Tan, Wencheng Su, Pengju Wang, Wenyu Zhang, Michael Sattler, Peijian Zou
Telethonin anchors the N-terminal region of titin in the Z-disk of the sarcomere by binding to two immunoglobulin-like (Ig) domains (Z1 and Z2) of titin (Z1Z2). Thereby telethonin plays an important role in myofibril assembly and in muscle development and functional regulation. The expression and purification of recombinant telethonin is very challenging. In previous studies, recombinant telethonin expressed from E. coli was refolded in the presence of Z1Z2. Here, we report various strategies to establish a reliable and efficient protocol for the preparation of telethonin and titin Z1Z2 protein...
August 12, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28806766/sublingual-immunotherapy-slit-for-house-dust-mites-does-not-prevent-new-allergen-sensitization-and-bronchial-hyper-responsiveness-in-allergic-rhinitis-children
#7
Jae Hyun Lim, Jin Youp Kim, Doo Hee Han, Chul Hee Lee, Seung-No Hong, Jee Hye Wee, Sue K Park, Chae-Seo Rhee
INTRODUCTION: The aim of this study is to identify the effects of sublingual immunotherapy (SLIT) on immunologic parameters and bronchial-hyper-responsiveness in children with allergic rhinitis to house-dust mite (HDM), through long-term follow-up cohort. METHODS: Among the Allergic Rhinitis Cohort Study for Kids, pediatric patients who visited the hospital for rhinitis symptoms and proven allergy to HDM through skin prick test were studied. In this cohort, 37 patients received SLIT more than 3-years (SLIT group), and 184 patients received only pharmacologic therapy (non-SLIT group) were included in this study...
2017: PloS One
https://www.readbyqxmd.com/read/28805889/oxytocin-injections-in-the-postpartal-period-affect-mammary-tight-junctions-in-sows
#8
C Farmer, M Lessard, C H Knight, H Quesnel
The potential impacts of injecting oxytocin (OXY) to sows in the early postpartum period on the quality of mammary tight junctions, milk composition, and immune status of sows and piglets were studied. Postparturient sows received i.m. injections of either saline (control [CTL]; = 10) or 75 IU of OXY ( = 10). Injections were given twice daily (0800 and 1630 h) starting on d 2 of lactation (i.e., between 12 and 20 h after birth of the last piglet), totaling 4 injections. Milk samples were obtained before the first injection (d 2 morning [AM]), before the second injection (d 2 afternoon [PM]), and on d 4 PM and d 5 PM...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28803775/pulmonary-function-in-patients-with-eosinophilic-chronic-rhinosinusitis
#9
Kensuke Uraguchi, Shin Kariya, Seiichiro Makihara, Mitsuhiro Okano, Takenori Haruna, Aiko Oka, Rumi Fujiwara, Yohei Noda, Kazunori Nishizaki
OBJECTIVE: There is a close relationship between upper and lower respiratory tract diseases. Chronic rhinosinusitis patients frequently have lung diseases including asthma and chronic obstructive pulmonary disease. Eosinophilic chronic rhinosinusitis is considered a refractory and intractable subtype of chronic rhinosinusitis. However, there has been no report on pulmonary function in patients with eosinophilic chronic rhinosinusitis. The purpose of this study is to examine the pulmonary function in eosinophilic chronic rhinosinusitis patients and non-eosinophilic chronic rhinosinusitis patients, and evaluate clinical factors associated with the pulmonary function of these patients...
August 10, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28803389/gastrointestinal-manifestations-of-stat3-deficient-hyper-ige-syndrome
#10
Manish Arora, Preet Bagi, Anna Strongin, Jennifer Heimall, Xiongce Zhao, Monica G Lawrence, Apurva Trivedi, Carolyn Henderson, Amy Hsu, Martha Quezado, David E Kleiner, Aradhana M Venkatesan, Steven M Holland, Alexandra F Freeman, Theo Heller
OBJECTIVE: STAT 3 deficiency (autosomal dominant hyper immunoglobulin E syndrome (AD-HIES)) is a primary immunodeficiency disorder with multi-organ involvement caused by dominant negative signal transducer and activator of transcription gene 3 (STAT3) mutations. We sought to describe the gastrointestinal (GI) manifestations of this disease. METHODS: Seventy subjects aged five to 60 years with a molecular diagnosis of AD-HIES were evaluated at the National Institutes of Health (NIH)...
August 13, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28803196/prenatal-exposure-to-dioxin-like-compounds-is-associated-with-decreased-cord-blood-ige-and-increased-risk-of-wheezing-in-children-aged-up-to-7years-the-hokkaido-study
#11
Chihiro Miyashita, Yu Ait Bamai, Atsuko Araki, Sachiko Itoh, Machiko Minatoya, Sumitaka Kobayashi, Jumboku Kajiwara, Tsuguhide Hori, Reiko Kishi
INTRODUCTION: In utero exposure to dioxin-like compounds (DLCs) may cause imbalance of immune development in early infancy. However, there are few epidemiological studies into the effects of in utero exposure to DLCs on allergies and infections during childhood. This study evaluates associations between concentrations of maternal DLCs and cord blood immunoglobulin (Ig) E, as well as allergies and infections during childhood. METHOD: We recruited 514 pregnant women in a maternity hospital in Sapporo, Japan, and measured concentrations of DLCs in 426 maternal blood samples using high-resolution gas chromatography/high-resolution mass spectrometry...
August 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28802401/differences-in-igg-responses-against-infection-phase-related-mycobacterium-tuberculosis-mtb-specific-antigens-in-individuals-exposed-or-not-to-mtb-correlate-with-control-of-tb-infection-and-progression
#12
Mariateresa Coppola, Leonar Arroyo, Krista E van Meijgaarden, Kees Lmc Franken, Annemieke Geluk, Luis F Barrera, Tom H M Ottenhoff
Tuberculosis (TB) occurs in only 3-10% of Mycobacterium tuberculosis (Mtb) infected individuals, suggesting that natural immunity can contain Mtb infection, although this remains poorly understood. Next to T-cells, a potentially protective role for B-cells and antibodies has emerged recently. However, the Mtb antigens involved remain ill-defined. Here, we investigated in a TB-endemic setting IgG levels against 15 Mtb antigens, representing various phases of Mtb infection and known to be potent human T-cell antigens...
September 2017: Tuberculosis
https://www.readbyqxmd.com/read/28802087/variant-histology-igd-and-cd30-expression-in-low-risk-pediatric-nodular-lymphocyte-predominant-hodgkin-lymphoma-a-report-from-the-children-s-oncology-group
#13
Ramona Vesna Untanu, Jason Back, Burton Appel, Qinglin Pei, Lu Chen, Allen Buxton, David C Hodgson, Peter F Ehrlich, Louis S Constine, Cindy L Schwartz, Robert E Hutchison
BACKGROUND: Histologic prognostic factors have been described for nodular lymphocyte predominant Hodgkin lymphoma (NLPHL). This study examines histologic and immunophenotypic variants in a clinical trial for pediatric NLPHL. PROCEDURE: One hundred sixty-eight cases of localized NLPHL were examined for histologic variants, CD30 and immunoglobulin D (IgD) expression, and outcome. Histologic types were scored categorically as 0 = 0, 1 ≤ 25%, and 2 > 25% of the sample...
August 12, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28801670/ectodomain-shedding-of-limbic-system-associated-membrane-protein-lsamp-by-adam-metallopeptidases-promotes-neurite-outgrowth-in-drg-neurons
#14
Ricardo L Sanz, Gino B Ferraro, Marie-Pier Girouard, Alyson E Fournier
IgLONs are members of the immunoglobulin superfamily of cell adhesion proteins implicated in the process of neuronal outgrowth, cell adhesion and subdomain target recognition. IgLONs form homophilic and heterophilic complexes on the cell surface that repress or promote growth depending on the neuronal population, the developmental stage and surface repertoire of IgLON family members. In the present study, we identified a metalloproteinase-dependent mechanism necessary to promote growth in embryonic dorsal root ganglion cells (DRGs)...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801088/characteristics-of-severe-asthma-with-fungal-sensitization
#15
Katsunori Masaki, Koichi Fukunaga, Masako Matsusaka, Hiroki Kabata, Takae Tanosaki, Takao Mochimaru, Takashi Kamatani, Kengo Ohtsuka, Rie Baba, Soichiro Ueda, Yusuke Suzuki, Fumio Sakamaki, Yoshitaka Oyamada, Takashi Inoue, Tsuyoshi Oguma, Koichi Sayama, Hidefumi Koh, Morio Nakamura, Akira Umeda, Katsuhiko Kamei, Kenji Izuhara, Koichiro Asano, Tomoko Betsuyaku
BACKGROUND: Some patients with severe asthma also have fungal sensitization and are considered to have severe asthma with fungal sensitization. However, there is limited information on the clinical features of SAFS. OBJECTIVE: To investigate the clinical characteristics of severe asthma with fungal sensitization. METHODS: The present study enrolled 124 patients with severe asthma. We evaluated clinical aspects, such as various serum cytokines, fractional exhaled nitric oxide, pulmonary function, and serum immunoglobulin E (IgE)...
August 8, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28797929/antiallergic-effect-of-fisetin-on-ige-mediated-mast-cell-activation-in-vitro-and-on-passive-cutaneous-anaphylaxis-pca
#16
Woo-Ri Jo, Hye-Jin Park
Fisetin (3,7,3',4'-tetrahydroxyflavone), a naturally occurring bioactive flavonoid, has been shown to inhibit inflammation. However, little is known about the effect of fisetin on immunoglobulin E (IgE)-mediated allergic responses. In this study, the effect of fisetin on rat basophilic leukemia (RBL-2H3) cell-mediated allergic reactions was investigated. Fisetin inhibited β-hexosaminidase release and decreased the level of interleukin-4 and tumor necrosis factor-α mRNA in IgE/antigen (IgE/Ag)-stimulated RBL-2H3 cells...
June 30, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28797808/influence-of-buffer-solutions-in-the-adsorption-of-human-serum-proteins-onto-layered-double-hydroxide
#17
Diego R Gondim, Juan A Cecilia, Santângela O Santos, Thainá N B Rodrigues, José E Aguiar, Enrique Vilarrasa-García, Enrique Rodríguez-Castellón, Diana C S Azevedo, Ivanildo J Silva
The adsorption of human immunoglobulin G (IgG) and human serum albumin (HSA) on a non-calcined Mg-Al layered double hydroxide (3:1 Mg-Al LDH) was studied in batch and fixed bed experiments, focusing on the effect of buffer solution and pH over sorbent uptake. Mg-Al LDH was synthesized and characterized by X-ray diffraction (XRD), N2 adsorption-desorption isotherms at -196°C, X-ray photoelectron spectroscopy (XPS), Zero point charge (pHzpc), particle size distribution and Fourier transform infra-red (FTIR)...
August 7, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28797637/temporal-changes-in-innate-immunity-parameters-epinecidin-gene-expression-and-mortality-in-orange-spotted-grouper-epinephelus-coioides-experimentally-infected-with-a-fish-pathogen-vibrio-harveyi-jml1
#18
Edgar C Amar, Joseph P Faisan, Mary Jane S Apines-Amar, Rolando V Pakingking
Changes in innate immunity parameters and epinecidin mRNA transcript levels were examined to characterize the non-specific immune response of E. coioides to pathogenic V. harveyi JML1 isolated from affected cage-cultured fish. After fish had been injected with bacteria at a dose causing 30% mortality, blood and tissue samples were collected at 0, 6, 12, 24, 48, 72, 96, 120, and 240 h post-infection (hpi) for assessment of indices such as the oxidative burst (OB) and phagocytic index (PI) of head kidney cells, and lysozyme activity (LYS) and total immunoglobulin (Total Ig) levels of the plasma...
August 7, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28796123/hymenoptera-induced-anaphylaxis-is-it-a-mast-cell-driven-hematological-disorder
#19
Knut Brockow, Cem Akin
PURPOSE OF REVIEW: Hymenoptera-induced allergy (HVA) is a common cause of anaphylaxis and may be fatal. It is associated with systemic mastocytosis in about 7% of adult patients. Systemic mastocytosis is a proliferative disorder of hematopoietic mast cell progenitors. There is recent data on the association between systemic mastocytosis and HVA. RECENT FINDINGS: Hymenoptera venoms are the most common immunoglobulin E-mediated elicitors of anaphylaxis in patients with mastocytosis...
August 8, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28792152/prevalence-and-clinical-characteristics-of-local-allergic-rhinitis-to-house-dust-mites
#20
Chang Gyu Jung, Ji Ho Lee, Ga Young Ban, Hae Sim Park, Yoo Seob Shin
Local allergic rhinitis (LAR) is a localized nasal allergic response in the absence of systemic atopy. The aim of this study was to evaluate the prevalence and clinical characteristics of LAR in Korean rhinitis patients compared to allergic rhinitis (AR) and non-allergic rhinitis (NAR). A total of 304 rhinitis patients were enrolled from November 2014 to March 2016. A skin prick test, serum total and specific immunoglobulin E, and a nasal provocation test (NPT) with house dust mite (HDM) were performed on all patients...
September 2017: Yonsei Medical Journal
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