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Serum Neurofilament Light Chain and GFAP in Amyotrophic Lateral Sclerosis on a Commercial ECLIA Platform

Sep 2026 · Muscle and Nerve · Vol 74, pp. 1398 - 1405 · 0 citations · 45 references
Medicine

TL;DR

This work assessed whether ECLIA NfL correlates with the ALSFRS‐R decline rate under the sampling conditions of clinical practice, and whether GFAP or S‐100B adds prognostic or disease‐specific information.

Abstract

In amyotrophic lateral sclerosis (ALS), SIMOA‐based studies show that baseline serum neurofilament light chain (NfL) predicts the revised ALS Functional Rating Scale (ALSFRS‐R) decline rate and survival. The Roche Elecsys electrochemiluminescence immunoassay (ECLIA) reports values approximately six‐fold lower; cross‐platform comparison confirms comparable performance, but serial clinical‐practice data remain limited. We assessed whether ECLIA NfL correlates with the ALSFRS‐R decline rate under the sampling conditions of clinical practice, and whether GFAP or S‐100B adds prognostic or disease‐specific information.

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