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Human Immunology

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https://www.readbyqxmd.com/read/28716698/cytokine-balance-and-behavioral-intervention-findings-from-the-peer-approaches-to-lupus-self-management-pals-project
#1
Edith M Williams, J Madison Hyer, Ramakrishnan Viswanathan, Trevor D Faith, Leonard Egede, Jim C Oates, Gailen D Marshall
The Peer Approaches to Lupus Self-Management program sought to address the disparate impact of systemic lupus erythematosus (SLE) on African American women through a peer mentoring intervention with aims of reducing stress, anxiety, and depression. Given the association between psychological health and immune function this study examines the relationship between patient reported outcomes (PROs) in these domains and immunologic indicators of disease activity. Twenty-three African American women with SLE served as mentees in the intervention from whom PRO measures were collected at the outset, midpoint, and end of the 12 week pilot study...
July 14, 2017: Human Immunology
https://www.readbyqxmd.com/read/28716697/copy-number-variations-of-the-il-22-gene-are-associated-with-ankylosing-spondylitis-a-case-control-study-in-chinese-han-population
#2
Xu Zhang, Xiaona Li, Renfang Han, Mengya Chen, Yaping Yuan, Xingxing Hu, Mengmeng Wang, Rui Li, Xiao Yang, Qing Xia, Yubo Ma, Jiajia Yang, Jingjing Tong, Shengqian Xu, Jianhua Xu, Zongwen Shuai, Faming Pan
IL-22 provides a new insight into the mechanisms of autoimmunity, and copy number variations (CNVs) are associated with autoimmune diseases. This study aims to explore the association of IL-22 gene CNVs with ankylosing spondylitis (AS) susceptibility. The copy numbers of IL-22 gene (2 fragments: IL-22_1, IL-22_2) were examined by AccuCopy(TM) methods in a cohort of 649 AS patients and 628 controls. Association of IL-22 CNVs and AS susceptibility was analyzed, and AS risk was estimated by Odds Ratio (ORs) and 95% confidence intervals (CIs), and the Benjamini-Hochberg method was applied to regulate the false discovery rate (FDR)...
July 14, 2017: Human Immunology
https://www.readbyqxmd.com/read/28705752/polymorphisms-of-the-human-platelet-antigen-1-2-3-5-and-15-systems-and-acute-cellular-liver-transplant-rejection
#3
Hansjörg Thude, Wiebke Bischoff, Martina Sterneck, Matthias Marget, Björn Nashan, Martina Koch
The human platelet antigen (HPA)-1, -2, -3, -5, and -15 systems are characterized as polymorphic alloantigens expressed on platelets and endothelial cells. In this retrospective study, we investigated, whether HPA-1, -2, -3, -5, and -15 incompatibilities are associated with acute cellular liver transplant rejection. A total of 96 Caucasian liver transplant recipients and corresponding donors were analyzed, 43 with biopsy proven acute cellular rejection (BPAR) and 53 without acute cellular rejection (No-BPAR)...
July 10, 2017: Human Immunology
https://www.readbyqxmd.com/read/28694051/nomenclature-for-factors-of-the-hla-system-update-may-2017
#4
Steven G E Marsh
No abstract text is available yet for this article.
July 7, 2017: Human Immunology
https://www.readbyqxmd.com/read/28694050/nomenclature-for-factors-of-the-hla-system-update-june-2017
#5
Steven G E Marsh
No abstract text is available yet for this article.
July 7, 2017: Human Immunology
https://www.readbyqxmd.com/read/28694049/nomenclature-for-factors-of-the-hla-system-update-april-2017
#6
Steven G E Marsh
No abstract text is available yet for this article.
July 7, 2017: Human Immunology
https://www.readbyqxmd.com/read/28624488/association-between-hla-dqb1-alleles-and-susceptibility-to-coronary-artery-disease-in-southern-han-chinese
#7
Yujuan Xiong, Lin Wang, Pei Mo, Guoying Huang, Aiqun Li, Renjie Chai, Xiaozhen Lin, Yun Zhong, Bin Liu, Wenchao Ou, Benrong Liu, Shi-Ming Liu
Accumulated evidence indicates that polymorphisms in human leukocyte antigens (HLA) are associated with susceptibility to coronary artery disease (CAD). However, whether HLA-DQB1 alleles are correlated with susceptibility to CAD is unclear. In this study, significantly lower frequencies of the allele groups (DQB1*03:01:01G and DQB1*05:03:01G) and the genotypes (DQB1*03:01:01G/DQB1*03:01:01G and DQB1*03:01:01G/DQB1*05:03:01G) were observed in the CAD group compared with that in the controls. However, notably higher frequencies of DQB1*04:01:01G and genotype DQB1*05:01:01G/DQB1*03:01:01G were observed in the CAD patients than in the controls...
June 15, 2017: Human Immunology
https://www.readbyqxmd.com/read/28624489/association-of-genetic-polymorphisms-of-macrophage-inhibitory-factor-mif-and-b-cell-activating-factor-baff-with-the-detection-of-donor-specific-antibodies-in-kidney-allograft-recipients
#8
Youngil Chang, Tariq Shah, David I Min
The posttransplant development of donor specific antibodies (DSA) initiates the antibody mediated rejection (AMR), which is associated with the increased rate of graft loss. One of the characteristics of AMR is the infiltration of innate immune system including macrophages, monocytes, neutrophils or NK cells. Macrophage inhibitory factor (MIF) and B-cell activating factor (BAFF) are well known cytokines that are associated with the activation of the innate immune system which can damage kidney allograft. In this article, the association of the genetic polymorphisms of MIF and BAFF with the development of DSA including Class I and II in kidney transplant patients is investigated...
June 14, 2017: Human Immunology
https://www.readbyqxmd.com/read/28614703/circulating-angiotensin-type-ii-receptor-possible-marker-for-antibody-mediated-rejection-after-renal-transplantation
#9
Pamela M Kimball, Gaurav Gupta, Felecia McDougan
BACKGROUND: Presence of antibody[Ab] against angiotensin receptor[AT1R] indicates heightened risk for antibody mediated rejection[AMR] after transplantation but is insufficient as a marker. We speculated AT1R might be released systemically because of AMR and might be a useful biomarker. METHODS: AT1R was measured in blood from 73 Normals and 72 renal patients pre- and post-transplantation. Patients were stratified as AMR-free[Gp1], AMR<1yr[Gp2] and AMR>1yr[Gp3]...
June 11, 2017: Human Immunology
https://www.readbyqxmd.com/read/28606626/serum-alarm-antiproteases-in-systemic-sclerosis-patients
#10
Anna Olewicz-Gawlik, Dorota Trzybulska, Katarzyna Graniczna, Barbara Kuznar-Kaminska, Katarzyna Katulska, Halina Batura-Gabryel, Magdalena Frydrychowicz, Aleksandra Danczak-Pazdrowska, Iwona Mozer-Lisewska
Alarm antiproteases, i.e. secretory leukocyte protease inhibitor ad elafin, are key mediators in innate immune response and integrate innate and adaptive immunity systems. The aim of the study was to assess clinical significance of serum levels of alarm antiproteases, elafin and secretory leukocyte protease inhibitor (SLPI) in patients with systemic sclerosis (SSc). Twenty-eight patients with SSc, 25 patients with rheumatoid arthritis (RA) and 22 healthy controls were recruited. Serum elafin and SLPI levels were examined using enzyme-linked immunosorbent assay (ELISA)...
June 9, 2017: Human Immunology
https://www.readbyqxmd.com/read/28576578/understanding-solid-phase-hla-antibody-assays-and-the-value-of-mfi
#11
REVIEW
Harold C Sullivan, Howard M Gebel, Robert A Bray
As the practice of medicine becomes more reliant on imaging and laboratory tests, medical decisions will be increasingly based on numbers. Accordingly, following the introduction of solid-phase testing to the HLA testing repertoire, laboratory directors and physicians have employed preset mean fluorescence intensity (MFI) thresholds as the basis for decisions in the management of transplant patients. However, what do MFI values mean? The literature is rife with reports detailing numerous factors that influence antibody assessment including (but not limited to) sensitization history of the patient, level of mismatch between donor and recipient, presence of interfering substances in the serum, whether the antigen on multiplex beads is native or denatured, day-to-day and technologist variability, and the historical performance of an assay in a given institution...
May 30, 2017: Human Immunology
https://www.readbyqxmd.com/read/28571758/killer-cell-immunoglobulin-like-receptor-kir-and-human-leukocyte-antigen-hla-class-i-genetic-diversity-in-four-south-african-populations
#12
Nikki L Gentle, Shayne Loubser, Maria Paximadis, Adrian Puren, Caroline T Tiemessen
Killer-cell Immunoglobulin-like Receptor (KIR) and Human Leukocyte Antigen (HLA) genotypes vary considerably between individuals and populations due to KIR/HLA allelic variation and variable haplotype configurations of KIR. HLA mediate natural killer cell activity by serving as KIR ligands. KIR/HLA polymorphisms associate with both disease susceptibility and severity. We determined the frequencies of KIR, KIR genotypes and KIR-HLA combinations in 364 healthy individuals from four South African populations. Study participants included black African (n=167), Caucasian (n=97), Mixed ancestry (n=50) and Indian (n=50) individuals...
May 29, 2017: Human Immunology
https://www.readbyqxmd.com/read/28551357/padi4-polymorphisms-and-the-functional-haplotype-are-associated-with-increased-rheumatoid-arthritis-susceptibility-a-replication-study-in-a-southern-mexican-population
#13
Christian Johana Baños-Hernández, José Eduardo Navarro-Zarza, Isela Parra-Rojas, Mirna Vázquez-Villamar, Jorge Ramón Padilla-Gutiérrez, Yeminia Valle, Zyanya Reyes-Castillo, Nora Magdalena Torres-Carrillo, Samuel García-Arellano, Lorena Michele Brennan-Bourdon, José Francisco Muñoz-Valle
Rheumatoid arthritis (RA) is a common autoimmune disease with a complex genetic background. The peptidyl arginine deiminase type IV (PADI4) gene has been associated with RA susceptibility in several populations. We addressed the relationship between three exonic PADI4 gene single nucleotide polymorphisms (SNPs) PADI4_89 (rs11203366), PADI4_90 (rs11203367) and PADI4_92 (rs874881) and related haplotypes with RA in a population from Southern México. This study included 200 RA patients and 200 control subjects...
May 25, 2017: Human Immunology
https://www.readbyqxmd.com/read/28535968/abnormal-distribution-of-distinct-lymphocyte-subsets-in-children-with-wiskott-aldrich-syndrome
#14
Lina Zhou, Wenyan Li, Xuan Zhang, Dawei Liu, Yuan Ding, Rongxin Dai, Xiaodong Zhao
Wiskott-Aldrich syndrome (WAS) is a severe and rare primary immunodeficiency. Several studies show that WAS protein (WASp) plays a key role in the function of certain lymphocyte subsets. So far, no study has described distinct immunophenotypic abnormalities associated with WAS; thus the prognostic significance of any such abnormalities is unclear. This study examined many differences in the percentage/absolute numbers of distinct lymphocyte subsets in 20 WAS patients and 20 age/sex-matched healthy controls, and analyzed the association between these abnormalities and clinical disease scores...
May 20, 2017: Human Immunology
https://www.readbyqxmd.com/read/28528709/association-between-the-killer-cell-immunoglobulin-like-receptor-a-haplotype-and-childhood-acute-lymphoblastic-leukemia
#15
Awad E Osman, Abdullah Aljuryan, Hanan Al-Harthi, Mai Almeshari
Killer immunoglobulin-like receptors (KIRs) have the ability to regulate Natural killer (NK) cell function through inhibition/activation mechanisms. Healthy human cells express HLA class I ligands on their surface, which are recognized by NK cells to avoid spontaneous cell destruction. The associations of KIRs and/or HLA class 1 ligands in leukemic patients have been studied in some populations, with some of these studies demonstrating an association of specific types with leukemia. KIRs and their corresponding HLA class 1 ligands were investigated in Saudi patients with ALL and AML and compared to healthy controls...
May 18, 2017: Human Immunology
https://www.readbyqxmd.com/read/28528708/depletion-of-the-chimeric-drug-rituximab-from-biological-samples
#16
Benita K Book, Mark D Pescovitz, Lili Guo, Eric A Wiebke
No abstract text is available yet for this article.
May 18, 2017: Human Immunology
https://www.readbyqxmd.com/read/28501500/it-s-about-time-the-development-and-validation-of-a-rapid-optimized-single-antigen-bead-rob-assay-protocol-for-labscreen
#17
Robert S Liwski, Anna L Greenshields, Cathi Murphey, Robert A Bray, Howard M Gebel
The LABScreen single antigen bead assay (SAB) is a method widely used for the identification and monitoring of human leukocyte antigen (HLA) antibodies in patients pre-and post-transplant. While accurate testing of patient samples is key for optimal patient care, time can also be important, especially during deceased donor workups or post-transplant assessments. Here we describe the development and validation of the Rapid Optimized SAB (ROB) protocol, a modified version of the One Lambda LABScreen SAB (OLSAB) procedure, which reduces assay time from 85 to 25min (>70% reduction) without impacting assay quality or sensitivity...
May 10, 2017: Human Immunology
https://www.readbyqxmd.com/read/28465172/human-leukocyte-antigen-class-i-a-b-and-c-allele-and-haplotype-variation-in-a-south-african-indian-population
#18
Shayne Loubser, Maria Paximadis, Caroline T Tiemessen
In 2013, ∼1,329,300 individuals made up the South African Indian population, which constituted ∼2.5% of the total population of ∼53 million. Historically, from 1860 to 1911, indentured labourers were imported from India, to work in the sugar-cane plantations in the KwaZulu-Natal Province. The local Indian community was further augmented by "passenger" immigrants who paid for passage to South Africa. Extensive HLA allelic variability exists in mainland Indian populations. We investigated HLA-A, -B and -C allele and haplotype diversity in 50 healthy, unrelated individuals recruited from the South African Indian population for comparison to data from mainland India...
May 2, 2017: Human Immunology
https://www.readbyqxmd.com/read/28438553/human-leukocyte-antigen-class-i-a-b-and-c-allele-and-haplotype-variation-in-a-south-african-mixed-ancestry-population
#19
Shayne Loubser, Maria Paximadis, Caroline T Tiemessen
South Africa has a large (∼53million), ethnically diverse population (black African, Caucasian, Indian/Asian and Mixed ancestry) and a high disease burden (particularly HIV-1 and Mycobacterium tuberculosis). The Mixed ancestry population constitutes ∼9% of the total population and was established ∼365years ago in the Western Cape region through interracial mixing of black Africans, Europeans and Asians. Admixed populations present unique opportunities to identify genetic factors involved in disease susceptibility...
May 2017: Human Immunology
https://www.readbyqxmd.com/read/28442289/hla-a-b-and-c-allele-and-haplotype-frequencies-defined-by-next-generation-sequencing-in-a-population-of-519-english-blood-donors
#20
Sue Davey, John Ord, Cristina Navarrete, Colin Brown
Whole gene next generation sequencing was used to determine the HLA class I haplotype and allele frequencies in a cohort of 519 English blood donors. This is the first report of HLA frequencies at third field resolution in a UK population with a total of 33, 52 and 30 alleles identified for HLA-A, -B and -C, respectively. Of the 1411 haplotypes determined, 281 had a frequency of greater than 0.05%. Data are available from the Allele Frequencies Net Database under the population name 'England Blood Donors of Mixed Ethnicity', identifier 3392...
April 22, 2017: Human Immunology
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