PubMed Journal Database | Journal of clinical immunology 
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Showing PubMed Articles 1–25 of 265 from Journal of clinical immunology
Uncontrolled fibrosis in multiple organs is the main cause of death in systemic sclerosis (SSc), and transforming growth factor-β (TGF-β) activation plays a fundamental role in the process. Our previous study demonstrated that miR-21 was significantly up-regulated in SSc fibroblasts. Here, we found that TGF-β regulated the expression of miR-21 and fibrosis-related genes, and decreased Smad7 expression. Over-expression of miR-21 in fibroblasts decreased the levels of Smad7, whereas knockdown of miR-21 inc...
The number of genetically defined Primary Immunodeficiency Diseases (PID) has increased exponentially, especially in the past decade. The biennial classification published by the IUIS PID expert committee is therefore quickly expanding, providing valuable information regarding the disease-causing genotypes, the immunological anomalies, and the associated clinical features of PIDs. These are grouped in eight, somewhat overlapping, categories of immune dysfunction. However, based on this immunological classif...
The Role of HLA DQ2 and DQ8 in Dissecting Celiac-Like Disease in Common Variable Immunodeficiency.
OBJECTIVES: Gastrointestinal manifestations are frequent in patients with common variable immunodeficiency (CVID), and some of the patients present with celiac-like features. Diagnosing celiac disease (CD) in CVID however is challenging, as autoantibody detection and histopathology of the small intestine cannot reliably discriminate between classic CD and a celiac-like disease in these individuals. For the development of classic gluten-sensitive CD a certain HLA haplotype involving the loci DQA1* and DQB1*...
Histiocytic necrotizing lymphadenitis (HNL), also called Kikuchi-Fujimoto disease, is a benign, self-limiting inflammatory disease with fever and painful cervical lymphadenopathy of unknown etiology. A lymph node biopsy is required for the definitive diagnosis because of no specific symptoms or laboratory findings for HNL. To establish the rapid non-invasive diagnostic method for this disease, we investigated genes specifically expressed in the patients by analyzing whole transcriptome using microarray anal...
Effect of Hyperoxia on Pulmonary SIgA and Its Components, IgA and SC.
PURPOSE: Oxygen therapy (hyperoxia) is essential for the treatment of some neonatal critical care conditions. The lung is the primary target for the changes induced by hyperoxia. Secretory immunoglobulin A (SIgA), IgA and secretory component (SC) reflect the local immunity in the respiratory tract induced by hyperoxia. METHODS: The enzyme-linked immunosorbent assay, immunohistochemistry staining, Western blot and Real-time PCR were used to detect the levels of cytokines, IgA and SIgA in bronchoalveolar lava...
Antibodies to Deamidated Gliadin Peptides: An Accurate Predictor of Coeliac Disease in Infancy.
Immunoglobulin G antibodies against deamidated gliadin peptides are now known to have diagnostic accuracy comparable to tissue transglutaminase and endomysium autoantibodies in patients with coeliac disease. However, little is known about their predictive value in infants with a suspected gluten enteropathy. We tested whether deamidated gliadin immunoglobulin G antibodies are more reliable than traditional tests for coeliac disease screening in infancy. Sixty-five children under 2 years of age (42 with mal...
TNF-α-Secreting B Cells Contribute to Myocardial Fibrosis in Dilated Cardiomyopathy.
PURPOSE: Excessive inflammation responses mediated by CD4(+) T cells contributes to myocardial fibrosis in dilated cardiomyopathy (DCM) resulting from viral myocarditis. Recently, some scholars discovered that B cells harbored an abnormal pro-inflammatory capacity besides the production of autoantibodies. Thus, we aimed to explore whether and which type of B cells act on myocardial fibrosis in DCM. METHODS: A total of 56 newly hospitalized DCM patients were studied, and among these, 17 patients accepted the...
Retraction Note: Oleandrin-Mediated Expression of Fas Potentiates Apoptosis in Tumor Cells.
OBJECTIVE: The aim of our study was to investigate the contribution of serum calreticulin (CRT) in the assessment of disease activity in rheumatoid arthritis (RA). METHODS: Serum CRT levels were measured by ELISA in 70 patients with established RA, 30 systemic lupus erythematosus (SLE), 25 other autoimmune diseases, 20 osteoarthritis (OA), and 35 of healthy controls (HC). Correlations of CRT serum levels with disease activity [Disease Activity Score for 28 joints (DAS28)], erythrocyte sedimentation rate(ESR...
Interferon Alpha Treatment of Patients with Impaired Interferon Gamma Signaling.
Patients with deficiency in the interferon gamma receptor (IFN-γR) are unable to respond properly to IFN-γ and develop severe infections with nontuberculous mycobacteria (NTM). IFN-γ and IFN-α are known to signal through STAT1 and activate many downstream effector genes in common. Therefore, we added IFN-α for treatment of patients with disseminated mycobacterial disease in an effort to complement their IFN-γ signaling defect. We treated four patients with IFN-γR deficiency with adjunctive IFN-α the...
PURPOSE: Lupus nephritis, a major cause of morbidity in patients with systemic lupus erythematosus (SLE), is generally thought to be induced by macrophage-mediated inflammation following deposition of various autoantibodies in kidneys. We previously reported that macrophage aberrant activation induced by activated lymphocyte-derived apoptotic DNA (apopDNA) have been found to play pathogenic roles in the immunodysregulation in lupus nephritis. However, DNA sensor(s) involved in apopDNA-induced macrophage act...
Biology of Human Pentraxin 3 (PTX3) in Acute and Chronic Kidney Disease.
The pentraxin superfamily consists of highly conserved multimeric pattern recognition proteins, which are components of the humoral arm of innate immunity. Besides the classical pentraxins (C-reactive protein and serum amyloid P component), pentraxin 3 (PTX3) is a prototypic long pentraxin. In response to primary inflammatory signals, this multifunctional acute phase protein is produced by a variety of cell types. Recently, several clinical studies have demonstrated that PTX3 is significantly associated wit...
Nodular Regenerative Hyperplasia in Common Variable Immunodeficiency.
PURPOSE: Patients with Common Variable Immunodeficiency (CVID) are subject to the development of a liver disease syndrome known as nodular regenerative hyperplasia (NRH). The purpose of this study was to define the characteristics and course of this complication of CVID. METHODS: CVID patients were evaluated by retrospective and prospective clinical course review. Liver biopsy specimens were evaluated for evidence of NRH and studied via RT-PCR for cytokine analysis. RESULTS: NRH in our CVID patient populati...
PURPOSE: Although the importance of vascular endothelial growth factor receptor (VEGFR)-3 has been demonstrated in acute myeloid leukemia (AML), the role of VEGFR-3 in functioning natural killer (NK) cells remains largely unexplored. NK cells can destroy cancer cells by releasing the cytokine interferon (IFN)-γ, but NK cells in AML patients (AML NK cells) have low cytolytic activity. In the present study, we investigated whether lymphatic markers including VEGFR-3 are expressed on low-functioning AML NK ce...
Clinical Symptoms in Adults with Selective IgA Deficiency: A Case-Control Study.
Selective IgA deficiency (SIgAD) is the most common primary immunodeficiency in Caucasians with a prevalence of 1/600 and is generally considered a mild disorder. In this study, the clinical status of 32 adults with SIgAD was investigated and compared to 63 age- and gender matched controls, randomly selected from a population database. The SIgAD individuals reported significantly more often contracting various upper and lower respiratory infections, with 8 (25.0 %) having been diagnosed with ≥1 pneumonia...
Common variable immune deficiency (CVID) is a heterogeneous disease associated with ineffective production of antibodies. It is usually diagnosed in adulthood, but a variable proportion of children develop CVID. Early identification of patients with potentially worse prognosis may help to avoid serious complications. The goal of this study was to associate the clinical phenotype of patients with early onset CVID with peripheral B-cell maturation profile. Four color flow cytometry was used to define distribu...
Diabetes, Renal and Cardiovascular Disease in p47( phox-/-) Chronic Granulomatous Disease.
Chronic granulomatous disease is a rare immunodeficiency due to defects in the phagocyte NADPH oxidase. The X-linked form (gp91( phox ) deficiency) accounts for about 70 % of cases; autosomal recessive p47( phox ) deficiency accounts for about 25 % of cases. We identified a 10 % incidence of diabetes in p47( phox ) deficient CGD, but none in X-linked CGD. Renal and cardiovascular diseases were also higher in p47( phox ) deficiency. p47( phox ) deficient CGD has non-infectious morbidities distinct from th...
2013 Annual Meeting: Regulation & Dysregulation of Immunity.
INTRODUCTION: Complement deficiencies are rare primary immunodeficiency disorders, the diagnosis of which is often underestimated. Only a small number of molecular studies have been carried out for the characterization of the underlying genetic defects in these cases. PURPOSE: Reporting the first family from the Arabian Gulf region with multiple members affected by meningococcemia and abscent serum complement 5 (C5). We tried to correlate clinical, biochemical and molecular genetics features of this family....
INTRODUCTION: CD4(+)CD25(+)Foxp3(+) regulatory T (Treg) cell dysfunction has been documented in various autoimmune disorders, but not in antiphospholipid syndrome (APS) so far. METHODS: In this cross-sectional study, we aim to investigate CD4(+)CD25(+)Foxp3(+) Treg cells, CD3(+)CD19(-) T cells and CD3(-)CD19(+) B cells in patients with primary APS and healthy controls. Cell subtypes were immunophenotyped using specific monoclonal antibodies (anti-CD3 CY5, anti-CD4 FITC, anti-CD25, anti-Foxp3, anti-CD19 PE)...
Primary immunodeficiencies (PIDs) represent a large group of diseases that affect all age groups. Although PIDs have been recognized as rare diseases, there is epidemiological evidence suggesting that their real prevalence has been underestimated. We performed an evaluation of a series of 1,008 infants, children, adolescents and adults with well-defined PIDs from a single Brazilian center, regarding age at diagnosis, gender and PID category according to the International Union of Immunological Societies cla...
PURPOSE: To study the role of Th(2)-attracting chemokines in opsoclonus-myoclonus syndrome (OMS), a serious neurological paraneoplastic disorder in need of better immunological understanding and therapy. METHODS: The CCR4 agonists CCL22 and CCL17 were measured in serum by ELISA in children with OMS (238 and 260, respectively), pediatric controls (115 and 143), and other inflammatory neurological disorders (33 and 24). RESULTS: Both CCL22 (+55 %) and CCL17 (+121 %) were significantly elevated in untreated...
During the last decade it has been shown that some components of intravenous immunoglobulin (IVIG) are responsible for their broadly therapeutic application. Currently, such specific subfractions are defined as specific IVIG (sIVIG) and are affinity-purified from commercial IVIGs that target specific antigens/antibodies related to a specific autoimmune disease. A remarkable example of the therapeutic potential of sIVIG is the proven enhanced anti-inflammatory potency of sialylated and recombinant sialylated...
Overview of Routes of IgG Administration.
The use of exogenous serum to provide protection against infections began more than a century ago. Over time, this concept matured and led to the preparation of concentrated immunoglobulin (IgG) products that were safe and effective when delivered subcutaneously (SC) or intramuscularly (IM) but were not ideal for intravenous (IV) use. Continued improvements led to the development of IgG preparations that are safe for either subcutaneous IgG (SCIG) or intravenous IgG (IVIG) delivery and allow providers and p...
