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'Common Variable Immunodeficiency' (3130)


Feb
2018

Although small prior studies have suggested that IgE can be low in common variable immunodeficiency (CVID), the workup for patients with recurrent infections and suspected hypogammaglobulinemia does not include the routine measurement of serum IgE. We sought to test the hypothesis that low/undetectable serum IgE is characteristic of CVID by comparing the frequency of low/undetectable serum IgE in healthy controls and patients with CVID. We measured total serum IgE in a large multi-center cohort of patients with CVID (n = 354) and compared this to large population-based cohorts of children and adults.

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Dec
1969

The existence of epistasis in humans was first predicted by Bateson in 1909. Epistasis describes the non-linear, synergistic interaction of two or more genetic loci, which can substantially modify disease severity or result in entirely new phenotypes. The concept has remained controversial in human genetics because of the lack of well-characterized examples.

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Dec
1969

Nuclear factor kappa-light-chain-enhancer of activated B cells 1 (NF-κB1)-related human primary immune deficiencies have initially been characterized as defining a subgroup of common variable immunodeficiencies (CVIDs), representing intrinsic B-cell disorders with antibody deficiency and recurrent infections of various kind. Recent evidence indicates that NF-κB1 haploinsufficiency underlies a variable type of combined immunodeficiency (CID) affecting both B and T lymphocyte compartments, with a broadened spectrum of disease manifestations, including Epstein-Barr virus (EBV)-induced lymphoproliferative disease and immediate life-threatening consequences. As part of this review series focused on EBV-related primary immunodeficiencies, we discuss the current clinical and molecular understanding of monoallelicgermline mutations with special focus on the emerging context of EBV-associated disease.

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Feb
2018

Common variable immunodeficiency (CVID) is an immunodeficiency disorder with a high incidence of gastrointestinal manifestations and an increased risk of gastric carcinoma and lymphoma. This review discusses the latest advancements into the immunological, clinical and diagnostic aspects of gastric malignancies in patients with CVID. The exact molecular pathways underlying the relationships between CVID and gastric malignancies remain poorly understood.

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Dec
1969

Humoral deficiencies represent a broad group of disorders. The aim of the study was to compare the levels of antibodies against pneumococcal capsular polysaccharides (anti-PCP) and natural anti-galactosyl (anti-Gal) antibodies in (1) patients with chronic lymphocytic leukaemia (CLL), (2) patients with common variable immunodeficiency (CVID), and (3) a healthy population and to explore their diagnostic and prognostic potential. Serum immunoglobulin levels and levels of anti-Gal IgG, IgA, and IgM and anti-PCP IgG and IgG2 were determined in 59 CLL patients, 30 CVID patients, and 67 healthy controls.

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Dec
1969

Heterozygous mutations in the cytotoxic T lymphocyte antigen-4 (CTLA-4) are associated with lymphadenopathy, autoimmunity, immune dysregulation, and hypogammaglobulinemia in about 70% of the carriers. So far, the incomplete penetrance of CTLA-4 haploinsufficiency has been attributed to unknown genetic modifiers, epigenetic changes, or environmental effects. We sought to identify potential genetic modifiers in a family with differential clinical penetrance of CTLA-4 haploinsufficiency.

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Dec
1969

Common variable immunodeficiency (CVID) is increasingly recognized for its association with autoimmune and inflammatory complications. Despite recent advances in immunophenotypic and genetic discovery, clinical care of CVID remains limited by our inability to accurately model risk for non-infectious disease development. Herein, we demonstrate the utility of unbiased network clustering as a novel method to analyze inter-relationships between non-infectious disease outcomes in CVID using databases at the United States Immunodeficiency Network (USIDNET), the centralized immunodeficiency registry of the United States, and Partners, a tertiary care network in Boston, MA, USA, with a shared electronic medical record amenable to natural language processing.

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Jan
2018

In common variable immunodeficiency (CVID) there is a deregulation of the immune system, which frequently leads to an increased risk of infections, but also to autoimmunity phenomena. Autoimmune hepatitis may develop at any time of CVID's evolution, but it is difficult to diagnose due to the frequent absence of autoantibodies and low levels of IgG. Early diagnosis is important because targeted treatment may allow disease improvement.

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Jan
2018

Adenosine and adenosine triphosphate are involved in purinergic signaling which plays an important role in control of the immune system. Much data have been obtained regarding impact of purinergic signaling on dendritic cells, macrophages, monocytes and T lymphocytes, however less attention has been paid to purinergic regulation of B cells. This review summarizes present knowledge on ATP- and Ado-dependent signaling in B lymphocytes.

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Jan
2018

Common variable immunodeficiency (CVID) is the most common symptomatic primary immunodeficiency (PID), characterized by heterogeneous clinical manifestations and defects in B- and T- cells. In the present study, we investigated the T helper (Th) cell subsets and regulatory T (Treg) cells, and their related cytokines and transcription factors in the CVID patients with no definite genetic diagnosis.
The study population comprised 13 CVID patients and 13 healthy controls (HC).

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Jan
2018

Primate lentiviruses, including the human and simian immunodeficiency viruses (HIV and SIV), produce infections marked by persistent, ongoing viral replication. This occurs despite the presence of virus-specific adaptive immune responses, including antibodies targeting the viral envelope glycoprotein (Env), and evolution of antibody-escape variants is a well-documented feature of lentiviral infection. Here, we examined the evolutionary dynamics of the SIVgene during early infection (≤ 29 weeks post-infection) in a cohort of four SIV251-infected rhesus macaques.

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Dec
2017

Villous atrophy in absence of coeliac disease (CD)-specific antibodies represents a diagnostic dilemma. We report a case of a woman with anaemia, weight loss and diarrhoea with an initial diagnosis of seronegative CD and a histological documented villous atrophy who did not improve on gluten-free diet due to the concomitant presence of common variable immunodeficiency (CVID) and Giardia lamblia infection. This case report confirms that CD diagnosis in CVID patients is difficult; the combination of anti-endomysial antibodies (EmA-IgA), anti-tissue transglutaminase antibodies (tTG-IgAb) antibodies and total IgA is obligatory in basic diagnostic of CD but in CVID are negative.

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Jan
2018

Transjugular intrahepatic portosystemic shunt (TIPS) is considered to be well suited for the treatment of noncirrhotic portal hypertension (NCPHT) because of a usually severe portal hypertension (PHT) and a mild liver failure, but very less data are available.
Records of patients referred for TIPS between 2004 and 2015 for NCPHT were reviewed. No patient should have clinical or biological or histological features of cirrhosis.

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Oct
2017

Common variable immunodeficiency (CVID) is typically characterized by hypogammaglobulinemia and often but not always recurrent infections. Paradoxically, 8-22% of patients with CVID develop granulomatous disease. Granulomata have been described in many organs including the lungs, skin, liver, spleen, kidneys, eyes, lymph nodes, and intestines.

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Jan
2018

Primary immunodeficiencies (PIDs) are low-incidence diseases caused by defects in genes involved in the development, maintenance, and regulation of the immune system. Common variable immunodeficiency (CVID) is the most common symptomatic immunodeficiency of adulthood. It has an approximate prevalence of 1 in 25 000-50 000 in the general population, with a delay in diagnosis between 6-7 years.

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Dec
2017

Long-term follow-up of IPEX syndrome patients after different therapeutic strategies: An international multicenter retrospective study.

J Allergy Clin Immunol 2017 Dec 11. Epub 2017 Dec 11.
Federica Barzaghi, Laura Cristina Amaya Hernandez, Benedicte Neven, Silvia Ricci, Zeynep Yesim Kucuk, Jack J Bleesing, Zohreh Nademi, Mary Anne Slatter, Erlinda Rose Ulloa, Anna Shcherbina, Anna Roppelt, Austen Worth, Juliana Silva, Alessandro Aiuti, Luis Murguia-Favela, Carsten Speckmann, Magda Carneiro-Sampaio, Juliana Folloni Fernandes, Safa Baris, Ahmet Ozen, Elif Karakoc-Aydiner, Ayca Kiykim, Ansgar Schulz, Sandra Steinmann, Lucia Dora Notarangelo, Eleonora Gambineri, Paolo Lionetti, William Thomas Shearer, Lisa R Forbes, Caridad Martinez, Despina Moshous, Stephane Blanche, Alain Fisher, Frank M Ruemmele, Come Tissandier, Marie Ouachee-Chardin, Frédéric Rieux-Laucat, Marina Cavazzana, Waseem Qasim, Barbarella Lucarelli, Michael H Albert, Ichiro Kobayashi, Laura Alonso, Cristina Diaz De Heredia, Hirokazu Kanegane, Anita Lawitschka, Jong Jin Seo, Marta Gonzalez-Vicent, Miguel Angel Diaz, Rakesh Kumar Goyal, Martin G Sauer, Akif Yesilipek, Minsoo Kim, Yesim Yilmaz-Demirdag, Monica Bhatia, Julie Khlevner, Erick J Richmond Padilla, Silvana Martino, Davide Montin, Olaf Neth, Agueda Molinos-Quintana, Justo Valverde-Fernandez, Arnon Broides, Vered Pinsk, Antje Ballauf, Filomeen Haerynck, Victoria Bordon, Catharina Dhooge, Maria Laura Garcia-Lloret, Robbert G Bredius, Krzysztof Kałwak, Elie Haddad, Markus Gerhard Seidel, Gregor Duckers, Sung-Yun Pai, Christopher C Dvorak, Stephan Ehl, Franco Locatelli, Frederick Goldman, Andrew Richard Gennery, Mort J Cowan, Maria-Grazia Roncarolo, Rosa Bacchetta,
Immunodysregulation polyendocrinopathy enteropathy x-linked (IPEX) syndrome is a monogenic autoimmune disease caused by FOXP3 mutations. Because it is a rare disease, the natural history and response to treatments, including allogeneic hematopoietic stem cell transplantation (HSCT) and immunosuppression (IS), have not been thoroughly examined.
This analysis sought to evaluate disease onset, progression, and long-term outcome of the 2 main treatments in long-term IPEX survivors.

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Dec
2017

Elizabethkingia miricola is a rare Gram-negative bacterium found in water and clinical specimens. Typical culturing methods often misidentify Elizabethkingia spp. as Flavobacterium or Chryseobacterium.

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Dec
1969

Immunoglobulin therapy plays a critical role in the treatment of immunodeficiency disorders as well as autoimmune and inflammatory conditions. In immunodeficient patients, there has been controversy whether initial loading doses of intravenous (IVIG) should be based on actual body weight or a calculated parameter such as adjusted body weight in obese patients.
I describe a patient with Common Variable Immunodeficiency disorder (CVID) who underwent bariatric surgery for morbid obesity.

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Dec
1969

The immune system is delegated to defend the body from attacks from outside or inside. Many diseases can affect immune system reducing its ability to defend self or inducing an abnormal response against external or internal antigens. Rare diseases affecting immune system present some issue in common with other rare diseases and some peculiarities due to the huge variability in the disease's expression.

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Dec
1969

Previous studies showed that several lymphocyte abnormalities seen in the most frequent symptomatic immunoglobulin deficiency, common variable immunodeficiency (CVID), were also observed in a genetically related asymptomatic disorder - selective IgA deficiency (IgAD). In this study we searched for abnormalities in the differentiation stages of T cells as well as for similarities of these abnormalities in CVID and IgAD patients.
Using flow cytometry in 80 patients with IgAD, 48 patients with CVID, and 80 control persons we determined T-lymphocyte subsets: both CD4 and CD8 were divided into the naïve CD45ROCD27, early differentiated CD45ROCD27, late differentiated CD45ROCD27and fully differentiated effector CD45ROCD27memory T cells, as well as Treg cells, defined as CD4CD25highCD127low T cells.

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Dec
1969

Common Variable Immune Deficiency (CVID) is rare. It is a constitutional deficit of humoral immunity characterized by recurrent bacterial infections and by increased frequency of tumors, autoimmune or granulomatous diseases. Gastrointestinal manifestations are very variable and sometimes reveal common variable immune deficiency.

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Nov
2017

Common variable immunodeficiency (CVID) is characterised by repeated infection associated with primary acquired hypogammaglobulinemia. CVID frequently has a complex aetiology but, in certain cases, it has a monogenic cause. Recently, variants within the gene encoding the transcription factor STAT3 were implicated in monogenic CVID.

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Feb
2018

Common variable immunodeficiency (CVID) is the most common form of primary immunodeficiency characterized by antibody deficiency, recurrent bacterial infections, and autoimmunity. Advanced chronic liver disease occurs in a subset of patients with CVID and manifests with various histological features, such as nodular regenerative hyperplasia, inflammation, fibrosis, and cholangiopathy. We present a case series characterizing the outcomes in adult patients transplanted for primary CVID-related liver disease.

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Jan
2018

Common variable immunodeficiency (CVID) is a primary immunodeficiency characterized by reduced immunoglobulin serum levels and absent or impaired antibody production. Clinical manifestations, including infections, inflammatory and autoimmune diseases, and malignancies, also involve various segments of the gastrointestinal tract. Chronic diarrhea is one of the most common gastrointestinal symptoms and may cause a wide spectrum of potentially life-threatening conditions as malabsorption and protein-energy malnutrition.

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Nov
2017

Measurement of IgG subclass concentrations is a standard laboratory test run as part of a panel to investigate the suspicion of antibody deficiency. The assessment is clinically important when total IgG is within the normal age-specific reference range. The measurement is useful for diagnosis of IgG subclass deficiency, to aid the diagnosis of specific antibody deficiency, as a supporting test for the diagnosis of common variable immunodeficiency, as well as for risk stratification of patients with low IgA.

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Jan
2018

Chronic enteroviral meningoencephalitis, most commonly caused by echoviruses, can particularly be seen in agammaglobulinemic patients. In spite of the fact that no specific treatment for enteroviral infections exists, pleconaril is an antiviral drug reported to be efficient against enteroviral infections in infants and adults. We present a case of a 42-year-old male, previously diagnosed with common variable immunodeficiency, who presented with severe chronic meningoencephalitis caused by Echo virus 6 and was successfully treated with pleconaril.

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Jan
2018

An adolescent boy presented to pediatrics outpatient department with complaints of recurrent diarrhea, nausea, vomiting, and pedal edema since 3-4 months, with no relief even after taking treatment. His investigation revealed decreased serum IgA, IgG, and IgM levels with hypoproteinemia. Duodenal biopsy showed features of celiac disease (CD), but tissue transglutaminase IgA was negative.

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Oct
2017

Common variable immunodeficiency disorders (CVID) are a group of primary immunodeficiencies where monogenetic causes account for only a fraction of cases. On this evidence, CVID is potentially polygenic and epistatic although there are, as yet, no examples to support this hypothesis. We have identified a non-consanguineous family, who carry the C104R (c.

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Dec
2017

Practical Approach to the Flattened Duodenal Biopsy.

Surg Pathol Clin 2017 Dec 23;10(4):823-839. Epub 2017 Sep 23.
Thomas C Smyrk
Celiac disease features duodenal intraepithelial lymphocytosis with or without villous atrophy. Lymphocytosis without villous atrophy will be proven to represent celiac disease in 10% to 20% of cases. The differential diagnosis is broad: Helicobacter pylori gastritis, NSAID injury and bacterial overgrowth are considerations.

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Jan
2018

Common variable immunodeficiency (CVID) is characterized by hypogammaglobulinemia and clinical manifestations such as infections, autoimmunity, and malignancy. We sought to determine if responsiveness to interleukin-21 (IL-21), a key cytokine for B cell differentiation, correlates with distinct clinical phenotypes in CVID.
CVID subjects were recruited through the Canadian Primary Immunodeficiency Evaluative Survey registry.

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Oct
2017

Fecal microbiota transplantation (FMT) is effective in recurrentinfection (rCDI). Knowledge of the safety and efficacy of FMT treatment in immune deficient patients is scarce. FMT has been suggested as a potential method for an increasing number of new indications besides rCDI.

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Dec
1969

In endemic regions, histoplasmosis is often seen in hosts with defective cell mediated immunity. We report a case of disseminated histoplasmosis in a patient with common variable immunodeficiency (CVID), a disorder mainly characterized by B cell defects.
A 35 year old male with CVID developed fever, headache, dyspnea and pancytopenia within few weeks of swimming in the Tennessee River.

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Sep
2017

Common variable immunodeficiency (CVID) is a syndrome with predominantly defective B cell function. However, abnormalities in the number and function of other lymphocyte subpopulations in peripheral blood (PB) have been described in most patients. We have analysed the distribution of iNKT cell subpopulations in the PB of CVID patients and the ability of these cells to provide in vitro cognate B cell help.

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Jan
2018

Autoimmune cytopenia is frequently a presenting manifestation of common variable immune deficiency (CVID). Studies characterizing the CVID phenotype associated with autoimmune cytopenias have mostly been limited to large referral centers. Here, we report prevalence of autoimmune cytopenias in CVID from the USIDNET Registry and compare the demographics and clinical features of patients with and without this complication.

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Dec
1969

HIV/AIDS are pressing global health problems. Pain is a common symptom reported by patients living with HIV/AIDS. The exact cause of pain in HIV patients has not been thoroughly described, but it may, due to a symptom of HIV itself, result from opportunistic infections, as a side effect of antiretroviral drugs, concurrent neoplasia or other causes.

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Dec
1969

Common variable immunodeficiency (CVID) is the most common primary immunodeficiency. Prevalence varies greatly between countries and studies. Most diagnostic criteria include hypogammaglobulinemia and impaired vaccine response.

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Oct
2017

Common variable immunodeficiency disorders (CVID) are an enigmatic group of often heritable conditions, which may manifest for the first time in early childhood or as late as the eighth decade of life. In the last 5 years, next generation sequencing (NGS) has revolutionised identification of genetic disorders. However, despite the best efforts of researchers around the globe, CVID conditions have been slow to yield their molecular secrets.

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Oct
2017

Common variable immunodeficiency (CVID), characterised by disordered B cell function, is one of the most common primary immunodeficiency disorders. Patients with CVID are at lifelong risk of recurrent infections, particularly of the respiratory and gastrointestinal tracts. Paradoxically, given their immunocompromised state, patients with CVID are also at significantly increased risk of autoimmune disorders, which are seen in almost 25% of cases.

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Nov
2017

The aim of this study was to evaluate the frequency of autoimmunity in primary antibody deficiency (PAD).
A total of 471 patients with PADs enrolled in this retrospective cohort study. For all patients' demographic information, clinical records and laboratory data were collected to investigate autoimmune complications.

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Dec
1969

Individuals with primary immunodeficiency disorder may excrete poliovirus for extended periods and will constitute the only remaining reservoir of virus after eradication and withdrawal of oral poliovirus vaccine. Here, we analyzed the epidemiology of prolonged and chronic immunodeficiency-related vaccine-derived poliovirus cases in a registry maintained by the World Health Organization, to identify risk factors and determine the length of excretion. Between 1962 and 2016, there were 101 cases, with 94/101 (93%) prolonged excretors and 7/101 (7%) chronic excretors.

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Oct
2017

Common variable immunodeficiency (CVID) is the most prevalent symptomatic primary immune deficiency. With widespread use of immunoglobulin replacement therapy, non-infectious complications, such as autoimmunity, chronic intestinal inflammation, and lung disease, have replaced infections as the major cause of morbidity and mortality in this immune deficiency. The pathogenic mechanisms that underlie the development of these complications in CVID are not known; however, there have been numerous associated laboratory findings.

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Oct
2017

Common variable immunodeficiency (CVID) is a heterogeneous disorder characterized by impaired antibody production and recurrent infections. In the last 20 years, several groups have reported that B cells from CVID patients have an impaired somatic hypermutation (SHM). The reported frequency of this defect among CVID patient cohorts is highly variable and so is the methodology used to evaluate this process.

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Oct
2017

Vaccination against influenza in patients with primary antibody deficiency is recommended. Common variable immunodeficiency (CVID) is the most frequent and clinically relevant antibody deficiency disease and is by definition characterized by an impaired vaccination response. The purpose of this review is to present the current knowledge of humoral and cellular vaccine response to influenza in CVID patients.

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