Behnam Keshavarz
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View article: High risk of asthma among early teens is associated with quantitative differences in mite and cat allergen specific IgE and IgG4: a modified Th2 related antibody response revisited
High risk of asthma among early teens is associated with quantitative differences in mite and cat allergen specific IgE and IgG4: a modified Th2 related antibody response revisited Open
This work was funded by R01-AI20565 (TPM) and support for the IgE and IgG4 assays provided by Phadia/Thermo Fisher Kalamazoo, Michigan. Project Viva is also supported by NIH R01HD034568 and R24ES.
View article: Distinct Type 1 Immune Networks Underlie the Severity of Restrictive Lung Disease after COVID-19
Distinct Type 1 Immune Networks Underlie the Severity of Restrictive Lung Disease after COVID-19 Open
The variable etiology of persistent breathlessness after COVID-19 have confounded efforts to decipher the immunopathology of lung sequelae. Here, we analyzed hundreds of cellular and molecular features in the context of discrete pulmonary …
View article: In-depth cellular and humoral dynamics of the response to COVID-19 vaccine booster in patients with chronic B-cell neoplasms
In-depth cellular and humoral dynamics of the response to COVID-19 vaccine booster in patients with chronic B-cell neoplasms Open
View article: Association of Sex and ABO-blood Group with Alpha-Gal Sensitization in a Cohort of Military Personnel
Association of Sex and ABO-blood Group with Alpha-Gal Sensitization in a Cohort of Military Personnel Open
View article: Investigation of Specific IgG4 and IgE Antibodies to Cat Allergen Among 296 Subjects in the Project Viva Birth Cohort: Evidence that a Low Ratio of sIgG4:sIgE is a Significant Risk Factor for Asthma and Asthma Severity
Investigation of Specific IgG4 and IgE Antibodies to Cat Allergen Among 296 Subjects in the Project Viva Birth Cohort: Evidence that a Low Ratio of sIgG4:sIgE is a Significant Risk Factor for Asthma and Asthma Severity Open
View article: Longitudinal Alpha-gal IgE Levels in a University of Virginia Employee Cohort
Longitudinal Alpha-gal IgE Levels in a University of Virginia Employee Cohort Open
View article: Prevalence and National Sensitization Patterns of Alpha-Gal IgE Among Military Personnel
Prevalence and National Sensitization Patterns of Alpha-Gal IgE Among Military Personnel Open
View article: Enhanced SARS-CoV-2 IgG durability following COVID-19 mRNA booster vaccination and comparison of BNT162b2 with mRNA-1273
Enhanced SARS-CoV-2 IgG durability following COVID-19 mRNA booster vaccination and comparison of BNT162b2 with mRNA-1273 Open
View article: Food antigen consumption and disease activity affect <scp>food‐specific IgG4</scp> levels in patients with eosinophilic esophagitis (<scp>EoE</scp>)
Food antigen consumption and disease activity affect <span>food‐specific IgG4</span> levels in patients with eosinophilic esophagitis (<span>EoE</span>) Open
Introduction High levels of serum food‐specific IgG4 (sIgG4) have been reported in patients with EoE. The objective of this study was to examine whether serum sIgG4 levels to foods and aeroallergens are higher in EoE patients than allergic…
View article: Trajectory of IgG to SARS-CoV-2 After Vaccination With BNT162b2 or mRNA-1273 in an Employee Cohort and Comparison With Natural Infection
Trajectory of IgG to SARS-CoV-2 After Vaccination With BNT162b2 or mRNA-1273 in an Employee Cohort and Comparison With Natural Infection Open
Three COVID-19 vaccines have received FDA-authorization and are in use in the United States, but there is limited head-to-head data on the durability of the immune response elicited by these vaccines. Using a quantitative assay we studied …
View article: Prevalence of α-Gal IgE and Mammalian Meat Allergy in a COVID-19 Vaccine Employee Cohort
Prevalence of α-Gal IgE and Mammalian Meat Allergy in a COVID-19 Vaccine Employee Cohort Open
View article: Survivors Of Severe COVID-19 With Long-Haul Respiratory Symptoms Display Enhanced Activation of Circulating T Cells
Survivors Of Severe COVID-19 With Long-Haul Respiratory Symptoms Display Enhanced Activation of Circulating T Cells Open
View article: Antibody and T-Cell Responses to Covid-19 mRNA Vaccines in Patients with B-Cell Lymphomas and Chronic Lymphocytic Leukemia (CLL)
Antibody and T-Cell Responses to Covid-19 mRNA Vaccines in Patients with B-Cell Lymphomas and Chronic Lymphocytic Leukemia (CLL) Open
Introduction: While the approval of three commercial vaccines for the SARS-CoV-2 virus has provided upwards of 95% protection against the coronavirus for healthy subjects, the efficacy among patients with hematologic malignancies remains u…
View article: P095 LEVELS OF IGG TO SARS-COV-2 IN RECIPIENTS OF COVID-19 VACCINES: LONGITUDINAL MONITORING WITH QUANTITATIVE ASSAY
P095 LEVELS OF IGG TO SARS-COV-2 IN RECIPIENTS OF COVID-19 VACCINES: LONGITUDINAL MONITORING WITH QUANTITATIVE ASSAY Open
View article: Of mice and men, MMXXI: Anaphylaxis
Of mice and men, MMXXI: Anaphylaxis Open
View article: Comparison of SARS-CoV-2 Antibody Response by Age Among Recipients of the BNT162b2 vs the mRNA-1273 Vaccine
Comparison of SARS-CoV-2 Antibody Response by Age Among Recipients of the BNT162b2 vs the mRNA-1273 Vaccine Open
This cohort study compares antibody responses in a cohort in which both BNT162b2 and mRNA-1273 COVID-19 vaccines were administered.
View article: Lessons in Innate and Allergic Immunity From Dust Mite Feces and Tick Bites
Lessons in Innate and Allergic Immunity From Dust Mite Feces and Tick Bites Open
Allergic diseases represent a major cause of morbidity in modern industrialized and developing countries. The origins and development of allergic immune responses have proven difficult to unravel and remain an important scientific objectiv…
View article: An Overview of the Relevance of IgG4 Antibodies in Allergic Disease with a Focus on Food Allergens
An Overview of the Relevance of IgG4 Antibodies in Allergic Disease with a Focus on Food Allergens Open
Antibodies of the IgG4 isotype are strongly associated with allergic disease but have several properties such as not precipitating with allergens, not activating complement and poor binding to Fcγ receptors that argue against a pro-inflamm…
View article: Reply to: The antibody response to the glycan α‐Gal correlates with COVID‐19 symptoms
Reply to: The antibody response to the glycan α‐Gal correlates with COVID‐19 symptoms Open
We read with interest two recent papers which discussed possible connections between the immune response to galactose-α-1,3-galactose (α-Gal) and coronavirus disease 2019 (COVID-19).1, 2 First described nearly a hundred years ago by Landst…
View article: Carbohydrate epitopes currently recognized as targets for IgE antibodies
Carbohydrate epitopes currently recognized as targets for IgE antibodies Open
Until recently, glycan epitopes have not been documented by the WHO/IUIS Allergen Nomenclature Sub‐Committee. This was in part due to scarce or incomplete information on these oligosaccharides, but also due to the widely held opinion that …
View article: Quantitative Measurement of IgG to SARS-CoV-2 Proteins Using the Phadia ImmunoCAP 250
Quantitative Measurement of IgG to SARS-CoV-2 Proteins Using the Phadia ImmunoCAP 250 Open
View article: α-Gal specific-IgE prevalence and levels in Ecuador and Kenya: Relation to diet, parasites, and IgG4
α-Gal specific-IgE prevalence and levels in Ecuador and Kenya: Relation to diet, parasites, and IgG4 Open
View article: The use of microarray and other multiplex technologies in the diagnosis of allergy
The use of microarray and other multiplex technologies in the diagnosis of allergy Open
View article: Quantitative Measurement of IgG to Severe Acute Respiratory Syndrome Coronavirus-2 Proteins Using ImmunoCAP
Quantitative Measurement of IgG to Severe Acute Respiratory Syndrome Coronavirus-2 Proteins Using ImmunoCAP Open
Background: Detailed understanding of the immune response to severe acute respiratory syndrome coronavirus (SARS-CoV)-2, the cause of coronavirus disease 2019 (COVID-19) has been hampered by a lack of quantitative antibody a…
View article: Supplementary Material for: Quantitative Measurement of IgG to Severe Acute Respiratory Syndrome Coronavirus-2 Proteins Using ImmunoCAP
Supplementary Material for: Quantitative Measurement of IgG to Severe Acute Respiratory Syndrome Coronavirus-2 Proteins Using ImmunoCAP Open
Background: Detailed understanding of the immune response to severe acute respiratory syndrome coronavirus (SARS-CoV)-2, the cause of coronavirus disease 2019 (COVID-19) has been hampered by a lack of quantitative antibody a…
View article: Quantitative measurement of IgG to SARS-CoV-2 proteins using ImmunoCAP
Quantitative measurement of IgG to SARS-CoV-2 proteins using ImmunoCAP Open
Background Detailed understanding of the immune response to SARS-CoV-2, the cause of coronavirus disease 2019 (COVID-19), has been hampered by a lack of quantitative antibody assays. Objective To develop a quantitative assay for IgG to SAR…
View article: α-Gal on Crotalidae-polyvalent Fab antivenom (CroFab): Investigating the relevance to immediate hypersensitivity reactions
α-Gal on Crotalidae-polyvalent Fab antivenom (CroFab): Investigating the relevance to immediate hypersensitivity reactions Open
View article: A dynamic relationship between two regional causes of IgE-mediated anaphylaxis: α-Gal syndrome and imported fire ant
A dynamic relationship between two regional causes of IgE-mediated anaphylaxis: α-Gal syndrome and imported fire ant Open
View article: Description of Fire Ant Anaphylaxis (FAA) Cases in the USA: Inverse Relationship to the α-Gal syndrome (AGS) in the Southeast
Description of Fire Ant Anaphylaxis (FAA) Cases in the USA: Inverse Relationship to the α-Gal syndrome (AGS) in the Southeast Open
View article: Additional insights into the connection between tick bites and the α-Gal syndrome in the United States
Additional insights into the connection between tick bites and the α-Gal syndrome in the United States Open