Laura Muñoz-Delgado1,2, Daniel Macías-García1,2, Silvia Jesús1,2, Juan Francisco Martín-Rodríguez1,2,3, Miguel Ángel Labrador-Espinosa1,2,4, María Valle Jiménez-Jaraba1, Astrid Adarmes-Gómez1,2, Fátima Carrillo1,2, Pablo Mir1,2,4. 1. Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain. 2. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain. 3. Departamento de Psicología Experimental, Facultad de Psicología, Universidad de Sevilla, Seville, Spain. 4. Departamento de Medicina, Facultad de Medicina, Universidad de Sevilla, Seville, Spain.
Abstract
BACKGROUND: The neutrophil-to-lymphocyte ratio (NLR) in peripheral blood is a well-established inflammatory marker, but its role in Parkinson's disease (PD) remains unclear. OBJECTIVES: To determine whether a different peripheral immune profile and NLR were present in PD patients. METHODS: We conducted a case-control study that included 377 PD patients and 355 healthy controls (HCs). Leukocytes, subpopulations, and the NLR were measured. Multivariate linear regression analyses were applied to determine the differences between groups and the association between NLR and clinical characteristics in PD. A meta-analysis was performed to clarify the association between NLR and PD. RESULTS: In our case-control study, the NLR was significantly higher in PD patients compared with HCs (2.47 ± 1.1 vs. 1.98 ± 0.91, P < 0.001). No association between NLR and age at onset, disease severity, or disease duration was found. The meta-analysis showed that the NLR was likely to be higher in PD patients. CONCLUSIONS: PD patients had an altered peripheral immune profile and a higher NLR compared with HCs.
BACKGROUND: The neutrophil-to-lymphocyte ratio (NLR) in peripheral blood is a well-established inflammatory marker, but its role in Parkinson's disease (PD) remains unclear. OBJECTIVES: To determine whether a different peripheral immune profile and NLR were present in PDpatients. METHODS: We conducted a case-control study that included 377 PDpatients and 355 healthy controls (HCs). Leukocytes, subpopulations, and the NLR were measured. Multivariate linear regression analyses were applied to determine the differences between groups and the association between NLR and clinical characteristics in PD. A meta-analysis was performed to clarify the association between NLR and PD. RESULTS: In our case-control study, the NLR was significantly higher in PDpatients compared with HCs (2.47 ± 1.1 vs. 1.98 ± 0.91, P < 0.001). No association between NLR and age at onset, disease severity, or disease duration was found. The meta-analysis showed that the NLR was likely to be higher in PDpatients. CONCLUSIONS:PDpatients had an altered peripheral immune profile and a higher NLR compared with HCs.
Authors: Lars Tönges; Carsten Buhmann; Stephan Klebe; Jochen Klucken; Eun Hae Kwon; Thomas Müller; David J Pedrosa; Nils Schröter; Peter Riederer; Paul Lingor Journal: J Neural Transm (Vienna) Date: 2022-04-15 Impact factor: 3.850