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https://www.readbyqxmd.com/read/28822009/urolithiasis-as-an-extraarticular-manifestation-of-ankylosing-spondylitis
#1
REVIEW
Cengiz Korkmaz, Döndü Üsküdar Cansu, John A Sayer
Ankylosing spondylitis (AS) affects sacroiliac and axial joints as well as extraarticular organs, such as the eye, lung, bowel, and heart. Although examples of renal involvement in AS, such as IgA nephropathy, amyloidosis, and glomerulonephritis, have been reported, it has not been emphasized that urolithiasis is frequently formed in the clinical course of AS. Growing evidence indicates that urolithiasis may be observed in AS patients and is more frequent than other extraarticular features. In this review, we will discuss frequency and predictors of AS-related urolithiasis and summarize the possible underlying genetic and biochemical mechanisms...
August 18, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28821839/circadian-clock-dependent-increase-in-salivary-iga-secretion-modulated-by-sympathetic-receptor-activation-in-mice
#2
Misaki Wada, Kanami Orihara, Mayo Kamagata, Koki Hama, Hiroyuki Sasaki, Atsushi Haraguchi, Hiroki Miyakawa, Atsuhito Nakao, Shigenobu Shibata
The salivary gland is rhythmically controlled by sympathetic nerve activation from the suprachiasmatic nucleus (SCN), which functions as the main oscillator of circadian rhythms. In humans, salivary IgA concentrations reflect circadian rhythmicity, which peak during sleep. However, the mechanisms controlling this rhythmicity are not well understood. Therefore, we examined whether the timing of parasympathetic (pilocarpine) or sympathetic (norepinephrine; NE) activation affects IgA secretion in the saliva. The concentrations of saliva IgA modulated by pilocarpine activation or by a combination of pilocarpine and NE activation were the highest in the middle of the light period, independent of saliva flow rate...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819290/progress-towards-non-invasive-diagnosis-and-follow-up-of-celiac-disease-in-children-a-prospective-multicentre-study-to-the-usefulness-of-plasma-i-fabp
#3
M P M Adriaanse, A Mubarak, R G Riedl, F J W Ten Kate, J G M C Damoiseaux, W A Buurman, R H J Houwen, A C E Vreugdenhil
This prospective study investigates whether measurement of plasma intestinal-fatty acid binding protein (I-FABP), a sensitive marker for small intestinal epithelial damage, improves non-invasive diagnosing of celiac disease (CD), and whether I-FABP levels are useful to evaluate mucosal healing in patients on a gluten-free diet (GFD). Ninety children with elevated tTG-IgA titres and HLA-DQ2/DQ8 positivity were included (study group). Duodenal biopsies were taken, except in those fulfilling the ESPGHAN criteria...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819174/interleukin-17-receptor-a-il-17ra-as-a-central-regulator-of-the-protective-immune-response-against-giardia
#4
Oonagh Paerewijck, Brecht Maertens, Leentje Dreesen, Frederik Van Meulder, Iris Peelaers, Dariusz Ratman, Robert W Li, Erik Lubberts, Karolien De Bosscher, Peter Geldhof
The protozoan parasite Giardia is a highly prevalent intestinal pathogen with a wide host range. Data obtained in mice, cattle and humans revealed the importance of IL-17A in the development of a protective immune response against Giardia. The aim of this study was to further unravel the protective effector mechanisms triggered by IL-17A following G. muris infection in mice, by an RNA-sequencing approach. C57BL/6 WT and C57BL/6 IL-17RA KO mice were orally infected with G. muris cysts. Three weeks post infection, intestinal tissue samples were collected for RNA-sequencing, with samples from uninfected C57BL/6 WT and C57BL/6 IL-17RA KO animals serving as negative controls...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28816740/the-value-of-direct-immunofluorescence-on-proteinase-digested-formalin-fixed-paraffin-embedded-skin-biopsies
#5
Aida Valencia-Guerrero, April Deng, Karen Dresser, Gail Bouliane, Kristine M Cornejo
Direct immunofluorescence (DIF) on frozen tissue (DIF-F) is the method of choice for the identification of immune deposits present in skin and other tissues. DIF can also be performed on formalin-fixed paraffin-embedded tissue (DIF-P) after antigen retrieval with proteases and has proven to be of value in renal pathology. However, its utility in skin biopsies has not been fully examined. In this study, we performed DIF-P on 60 skin biopsies that comprised of bullous pemphigoid (n = 18), pemphigoid gestationis (n = 1), pemphigus (n = 7), linear IgA disease (n = 7), vasculitis (n = 20), lupus erythematosus (n = 3), and dermatitis herpetiformis (n = 4) cases...
August 9, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28815811/study-of-the-effects-of-spray-drying-in-whey-starch-on-the-probiotic-capacity-of-lactobacillus-rhamnosus-64-in-the-gut-of-mice
#6
L Lavari, P Burns, R Páez, J Reinheimer, G Vinderola
AIMS: To evaluate the effects of spray-drying of Lactobacillus rhamnosus 64 on its capacity to modulate the gut immune response and on the attenuation of TNBS-induced colitis in mice. METHODS AND RESULTS: L. rhamnosus 64 was spray-dried in cheese whey-starch solution and administered to mice for three, six or ten consecutive days. Peritoneal macrophage phagocytic activity, secretory-IgA (S-IgA) levels in the small intestinal fluid and TNFα, IFNγ, IL-10, IL-6 and IL-2 levels in homogenates of the small and large intestine were determined...
August 17, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28815356/dent-disease-in-poland-what-we-have-learned-so-far
#7
Marcin Zaniew, Małgorzata Mizerska-Wasiak, Iga Załuska-Leśniewska, Piotr Adamczyk, Katarzyna Kiliś-Pstrusińska, Adam Haliński, Jan Zawadzki, Beata S Lipska-Ziętkiewicz, Krzysztof Pawlaczyk, Przemysław Sikora, Michael Ludwig, Maria Szczepańska
PURPOSE: Dent disease (DD) is a rare tubulopathy characterized by proximal tubular dysfunction leading to chronic kidney disease (CKD). The aim of the study was to characterize patients with DD in Poland. METHODS: A retrospective analysis of a national cohort with genetically confirmed diagnosis. RESULTS: Of 24 males, all patients except one carried mutations in the CLCN5 gene; in one patient a mutation in the OCRL gene was disclosed. Molecular diagnosis was delayed 1 year on average (range 0-21 years)...
August 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28814945/glomerular-abundance-of-complement-proteins-characterized-by-proteomic-analysis-of-laser-captured-microdissected-glomeruli-associates-with-progressive-disease-in-iga-nephropathy
#8
Teodora Ioana Flavia Paunas, Kenneth Finne, Sabine Leh, Hans-Peter Marti, Tom Eirik Mollnes, Frode Berven, Bjørn Egil Vikse
BACKGROUND: The clinical course of IgA nephropathy (IgAN) is variable and complement activation may predict prognosis. The present study investigated whether glomerular abundance of complement proteins associates with progression to end-stage renal disease (ESRD) in patients for whom prognosis could not be predicted based on clinical variables. METHODS: Based on data from the Norwegian Kidney Biopsy Registry and the Norwegian Renal Registry, three groups were included: IgAN patients with (n = 9) or without (n = 16) progression to ESRD during 10 years, and controls (n = 15) with a normal kidney biopsy...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28814662/irgm1-coordinately-regulates-autoimmunity-and-host-defense-at-select-mucosal-surfaces
#9
Kathleen M Azzam, Jennifer H Madenspacher, Derek W Cain, Lihua Lai, Kymberly M Gowdy, Prashant Rai, Kyathanahalli Janardhan, Natasha Clayton, Willie Cunningham, Heather Jensen, Preeyam S Patel, John F Kearney, Gregory A Taylor, Michael B Fessler
The pathogenesis of primary Sjogren's syndrome (SS), an autoimmune disease that targets the mucosa of exocrine tissues, is poorly understood. Although several mouse models have been developed that display features of SS, most of these are within the larger context of a lupus-like presentation. Immunity-related GTPase family M protein 1 (Irgm1) is an interferon-inducible cytoplasmic GTPase that is reported to regulate autophagy and mitochondrial homeostasis. Here, we report that naive Irgm1-/- mice display lymphocytic infiltration of multiple mucosal tissues including the lung in a manner reminiscent of SS, together with IgA class-predominant autoantibodies including anti-Ro and anti-La...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28814389/equine-arteritis-virus-elicits-a-mucosal-antibody-response-in-the-reproductive-tract-of-persistently-infected-stallions
#10
Mariano Carossino, Bettina Wagner, Alan T Loynachan, R Frank Cook, Igor F Canisso, Lakshman Chelvarajan, Casey L Edwards, Bora Nam, John F Timoney, Peter J Timoney, Udeni B R Balasuriya
Equine arteritis virus (EAV) has the ability to establish persistent infection in the reproductive tract of the stallion (carrier) and is continuously shed in its semen. We have recently demonstrated that EAV persists within stromal cells and a subset of lymphocytes in the stallion accessory sex glands in the presence of a significant local inflammatory response. In the present study, we demonstrated that EAV elicits a mucosal antibody response in the reproductive tract during persistent infection with homing of plasma cells into accessory sex glands...
August 16, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28814388/the-impact-of-poxvirus-vector-priming-protein-co-administration-and-vaccine-intervals-on-hiv-gp120-vaccine-elicited-antibody-magnitude-and-function-in-infant-macaques
#11
Bonnie Phillips, Genevieve G Fouda, Josh Eudailey, Justin Pollara, Alan D Curtis, Erika Kunz, Maria Dennis, Xiaoying Shen, Camden Bay, Michael Hudgens, David Pickup, S Munir Alam, Amir Ardeshir, Pamela A Kozlowski, Koen K A Van Rompay, Guido Ferrari, M Anthony Moody, Sallie Permar, Kristina De Paris
Despite success in reducing vertical HIV transmission by maternal antiretroviral therapy, several obstacles limit its efficacy during breastfeeding, and breast-milk transmission is now the dominant mode of mother-to-child transmission (MTCT) of HIV in infants. Thus, a pediatric vaccine is needed to eradicate oral HIV infections in newborns and infants. Utilizing the infant rhesus macaque model, we compared 3 different vaccine regimens: (i) HIV Env protein only; (ii) a poxvirus vector (MVA)-HIV Env prime/HIV Env protein boost, and (iii) co-administration of HIV Env protein and MVA-HIV Env at all time points...
August 16, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28811240/changes-in-mucosal-and-serum-immunoglobulin-levels-of-california-sea-lions-during-early-development
#12
W Espinosa-de Aquino, M Bailey, K Acevedo-Whitehouse
To date, most studies on pinniped immunoglobulins have focused on circulating antibodies. However, systemic and local immune activities differ in terms of maturation, intensity, and types of effectors that participate. Here, we examined levels of three immunoglobulin isotypes, IgG, IgM and IgA, in the blood and mucosal membranes of free-living California sea lion pups. We investigated whether age, body condition and sex influenced their concentration. Isotype levels varied among tissues, with age-related patterns that could be indicative of differential regulation along development...
August 12, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28811215/molecular-mechanisms-underlying-protection-against-h9n2-influenza-virus-challenge-in-mice-by-recombinant-lactobacillus-plantarum-with-surface-displayed-ha2-ltb
#13
Yanlong Jiang, Guilian Yang, Qi Wang, Zhannan Wang, Wentao Yang, Wei Gu, Chunwei Shi, Jianzhong Wang, Haibin Huang, Chunfeng Wang
It has been considered that the Avian influenza virus (AIV) causes severe threats to poultry industry. In this study, we constructed a series of recombinant Lactobacillus plantarum (L. plantarum) with surface displayed hemagglutinin subunit 2 (HA2) alone or together with heat-labile toxin B subunit (LTB) from enterotoxigenic Escherichia coli. Balb/c mice were used as model to evaluate the protective effects of recombinant L. plantarum strains against H9N2 subtype challenge. The results showed that the presence of LTB significantly increased the percentages of CD3(+)CD4(+)IL-4(+), CD3(+)CD4(+)IFN-γ(+) and CD3(+)CD4(+)IL-17(+) T cells, as well as CD3(+)CD8(+)IFN-γ(+) T cells in spleen and MLNs determined by Fluorescence-Activated Cell Sorting assay...
August 12, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28810902/the-isotype-and-igg-subclass-distribution-of-anti-carbamylated-protein-antibodies-in-rheumatoid-arthritis-patients
#14
Myrthe A M van Delft, Marije K Verheul, Leonie E Burgers, Veerle F A M Derksen, Annette H M van der Helm-van Mil, Diane van der Woude, Tom W J Huizinga, René E M Toes, Leendert A Trouw
BACKGROUND: Anti-carbamylated protein (anti-CarP) antibodies have recently been reported to occur in around 45% of rheumatoid arthritis (RA) patients and to have prognostic and diagnostic properties. At present, the breadth and molecular make-up of the anti-CarP antibody response is ill defined. To understand the anti-CarP antibody immune response and potential immune effector mechanisms it can recruit, we determined the anti-CarP antibody isotype and IgG-subclass usage in RA patients...
August 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28810609/value-of-serum-mycoplasma-pneumoniae-immunoglobulin-in-the-diagnosis-of-mycoplasma-related-pneumonia-in-newborns
#15
Yan Dong, Wei Lv, Zhen Lin
Mycoplasma pneumoniae (M. pneumoniae) is an important pathogen of neonatal acquired pneumonia in newborns. Rapid and accurate diagnosis of M. pneumoniae infection is critical because timely antibiotic therapy can reduce drug overuse and prevent the development of bacterial resistance. Anti-M. pneumoniae immunoglobulin M (IgM) is an indicator of early infection that can persist for several months. Studies have shown that anti-M. pneumoniae IgA in adults is a reliable indicator of early M. pneumoniae infection...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28807929/human-mucosal-associated-invariant-t-mait-cells-possess-capacity-for-b-cell-help
#16
Michael S Bennett, Shubhanshi Trivedi, Anita S Iyer, J Scott Hale, Daniel T Leung
Mucosal-associated invariant T (MAIT) cells are an innate-like T-cell subset, restricted by the nonclassic MHC class I-related protein MR1 and enriched at mucosal sites. Human studies have shown an association between MAIT cells and pathogen-specific antibody responses. In this study, we investigate the effect of human MAIT cells on B cells ex vivo. We found that supernatants from microbe- or cytokine-stimulated MAIT cells, when added to purified autologous B cells, increase frequencies of plasmablasts and promote IgA, IgG, and IgM production...
August 14, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28807767/a-new-clinico-biological-scoring-system-for-the-prediction-of-infection-related-mortality-and-survival-after-allogeneic-hematopoietic-stem-cell-transplantation
#17
Alessandra Forcina, Paola M V Rancoita, Magda Marcatti, Raffaella Greco, Maria Teresa Lupo-Stanghellini, Matteo Carrabba, Vincenzo Marasco, Clelia Di Serio, Massimo Bernardi, Jacopo Peccatori, Consuelo Corti, Attilio Bondanza, Fabio Ciceri
Infection-related mortality (IRM) accounts for a substantial component of non-relapse mortality (NRM) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). No scores have been developed to predict IRM before transplant. Pre-transplant clinical and biochemical data were collected in a study cohort of 607 adult patients receiving allo-HSCT from January 2009 to February 2017. In a training set of 273 patients, multivariate analysis revealed that age >60 years (P=0.003), CMV host/donor serostatus different from negative/negative (P<0...
August 11, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28807314/a-candidate-gene-approach-to-study-nematode-resistance-traits-in-naturally-infected-sheep
#18
Hazel Wilkie, Valentina Riggio, Oswald Matika, Louise Nicol, Kathryn A Watt, Rona Sinclair, Alexandra M Sparks, Daniel H Nussey, Josephine M Pemberton, Ross D Houston, John Hopkins
Sheep naturally acquire a degree of resistant immunity to parasitic worm infection through repeated exposure. However, the immune response and clinical outcome vary greatly between animals. Genetic polymorphisms in genes integral to differential T helper cell polarization may contribute to variation in host response and disease outcome. A total of twelve single nucleotide polymorphisms (SNPs) were sequenced in IL23R, RORC2 and TBX21 from genomic DNA of Scottish Blackface lambs. Of the twelve SNPs, six were non-synonymous (missense), four were within the 3' UTRs and two were intronic...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807307/significance-of-anti-carla-salivary-iga-antibody-in-first-grazing-season-cattle-naturally-infected-with-gastrointestinal-nematodes
#19
Aurélie Merlin, Richard Shaw, Alain Chauvin, Nathalie Bareille, Christophe Chartier
A carbohydrate larval surface antigen (CarLA) present on infective larvae of all trichostrongylid nematodes is a target antigen for host immunoglobulins (Ig). Levels of anti-CarLA salivary IgA antibody (CarLA-IgA) have been shown to be correlated to the level of protective immunity to GIN in sheep and deer but no information is available in cattle. The first objective of this study was to assess the pattern of CarLA-IgA response in 7 groups (G1-G7) of first grazing season cattle (FGSC) naturally infected with gastrointestinal nematodes...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28805889/oxytocin-injections-in-the-postpartal-period-affect-mammary-tight-junctions-in-sows
#20
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
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