AQP4 autoantibody assay performance in clinical laboratory service

JP Fryer, VA Lennon, SJ Pittock… - Neuroimmunology & …, 2014 - AAN Enterprises
Objective: To compare performance of contemporary aquaporin-4–immunoglobulin (Ig) G
assays in clinical service. Methods: Sera from neurologic patients (4 groups) and controls …

Clinical utility of testing AQP4-IgG in CSF: guidance for physicians

M Majed, JP Fryer, A McKeon, VA Lennon… - Neuroimmunology & …, 2016 - AAN Enterprises
Objective: To define, using assays of optimized sensitivity and specificity, the most
informative specimen type for aquaporin-4 immunoglobulin G (AQP4-IgG) detection …

Alterations in Aquaporin‐4‐IgG Serostatus in 986 Patients: A Laboratory‐Based Longitudinal Analysis

M Majed, C Valencia Sanchez, JL Bennett… - Annals of …, 2023 - Wiley Online Library
Objective This study was undertaken to investigate factors associated with aquaporin‐4
(AQP4)‐IgG serostatus change using a large serological database. Methods This …

Aquaporin‐4 Autoantibody Detection by ELISA: A Retrospective Characterization of a Commonly Used Assay

JP Williams, JR Abbatemarco, JJ Galli… - Multiple Sclerosis …, 2021 - Wiley Online Library
Objective. Aquaporin‐4 (AQP4) serum autoantibodies are detected by a variety of methods.
The highest sensitivity is achieved with cell‐based assays, but the enzyme‐linked …

Rapid immunodot AQP4 assay for neuromyelitis optica spectrum disorder

Y Fu, J Bi, Y Yan, X Sun, K Li, SY Kim, SM Han… - JAMA …, 2023 - jamanetwork.com
Importance Immunoglobulin G autoantibodies for aquaporin 4 (AQP4-IgG) serve as
diagnostic biomarkers for neuromyelitis optica spectrum disorder (NMOSD), and the most …

Evaluation of aquaporin‐4 antibody assays

PJ Waters, SJ Pittock, JL Bennett… - Clinical and …, 2014 - Wiley Online Library
Abstract Aquaporin‐4 (AQP 4) is a water channel protein that is most highly, but not
exclusively, expressed in the central nervous system. In 2005 AQP 4 was shown to be the …

Effects of age and sex on aquaporin-4 autoimmunity

AML Quek, A McKeon, VA Lennon… - Archives of …, 2012 - jamanetwork.com
Objective To determine the sex and age distribution of aquaporin-4 (AQP4) autoimmunity
using data derived from clinical service laboratory testing of 56 464 patient samples. Design …

Immunoglobulin M antibodies to aquaporin-4 in neuromyelitis optica and related disorders

S Jarius, D Franciotta, R Bergamaschi… - Clinical chemistry and …, 2010 - degruyter.com
Abstract Background: Neuromyelitis optica (NMO, Devic syndrome) is an inflammatory
disorder of the central nervous system of putative autoimmune etiology that primarily affects …

Accuracy of the fluorescence-activated cell sorting assay for the aquaporin-4 antibody (AQP4-Ab): comparison with the commercial AQP4-Ab assay kit

J Yang, SM Kim, YJ Kim, SY Cheon, B Kim, KC Jung… - PLoS …, 2016 - journals.plos.org
Background The aquaporin-4 antibody (AQP4-Ab) is a disease-specific autoantibody to
neuromyelitis optica (NMO). We aimed to evaluate the accuracy of the FACS assay in …

Seroprevalence of aquaporin-4–IgG in a northern California population representative cohort of multiple sclerosis

SJ Pittock, VA Lennon, N Bakshi, L Shen… - JAMA …, 2014 - jamanetwork.com
Importance Using an aquaporin-4 (AQP4) M1-isoform–specific enzyme-linked
immunosorbent assay (ELISA) and a fixed transfected cell-based assay (CBA), we tested …