# Hospital Coordination and Protocols Using Serum and Peripheral Blood Cells from Patients and Healthy Donors in a Longitudinal Study of Guillain–Barré Syndrome

## TL;DR

This paper outlines procedures for collecting and preserving blood samples from Guillain–Barré syndrome patients and healthy donors to support future research and diagnosis.

## Contribution

The paper introduces a coordinated biobank collection and inter-institutional network for longitudinal GBS studies.

## Key findings

- Human samples from GBS patients and donors were preserved to create a biobank for future research.
- The study established protocols for blood collection, cell isolation, and serum analysis.
- Collaboration between institutions enabled long-term GBS research through a unified network.

## Abstract

Background/Objectives: Guillain–Barré syndrome (GBS) is a rare autoimmune peripheral neuropathy that affects both the myelin sheaths and axons of the peripheral nervous system. It is the leading cause of acute neuromuscular paralysis worldwide, with an annual incidence of less than two cases per 100,000 people. Although most patients recover, a small proportion do not regain mobility and even remain dependent on mechanical ventilation. In this study, we refer to the analysis of samples collected from GBS patients at different defined time points during hospital recovery and performed by a medical or research group. Methods: The conditions for whole blood collection, peripheral blood mononuclear cell isolation, and serum collection from GBS patients and volunteer donors are explained. Aliquots of these human samples have been used for red blood cell phenotyping, transcriptomic and proteomic analyses, and serum biochemical parameter studies. Results: The initial sporadic preservation of human samples from GBS patients and control volunteers enabled the creation of a biobank collection for current and future studies related to the diagnosis and treatment of GBS. Conclusions: In this article, we describe the laboratory procedures and the integration of a GBS biobank collection, local medical services, and academic institutions collaborating in its respective field. The report establishes the intra-disciplinary and inter-institutional network to conduct long-term longitudinal studies on GBS.