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This research investigates the expression of Chit-1 and CHI3L1 in neurodegenerative diseases and their correlation with pathology and disease duration.

May 14, 2026BMJ Neurology OpenOpen Access

CHI3L1 (YKL-40) and Chit-1 expressing glia in the white matter of ALS, FTLD and AD: correlations to pathology and disease duration

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This research investigates the expression of Chit-1 and CHI3L1 in neurodegenerative diseases and their correlation with pathology and disease duration.
RNA sequencing analyzed gene expression of Chit-1 and CHI3L1 in spinal cord and motor cortex.
Immunohistochemistry characterized Chit-1 and CHI3L1 expressing cells in various neurodegenerative diseases and controls.
Immunofluorescence confocal microscopy correlated glial expression with TDP-43 pathology.
Chit-1 expression increased in the spinal cord of sALS and C9-ALS patients compared to controls.
CHI3L1 expression significantly increased in sALS, with glial Chit-1 abundance in regions with disease pathology.
Co-localization of glial Chit-1 and CHI3L1 with pTDP in motor cortex white matter correlated with disease duration.

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Implication

Randomized trial explores the correlation of Chit-1 and CHI3L1 with pathology in neurodegenerative diseases, indicating potential biomarkers.

Cite This Study

Tran et al. (2026) studied this question.

synapsesocial.com/papers/6a056899a550a87e60a20fec https://doi.org/10.1136/bmjno-2025-001225

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Implication

Randomized trial explores the correlation of Chit-1 and CHI3L1 with pathology in neurodegenerative diseases, indicating potential biomarkers.

CHI3L1 (YKL-40) and Chit-1 expressing glia in the white matter of ALS, FTLD and AD: correlations to pathology and disease duration

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Discussion

Implication

Cite This Study

CHI3L1 (YKL-40) and Chit-1 expressing glia in the white matter of ALS, FTLD and AD: correlations to pathology and disease duration

Key Points

Discussion

Implication

Cite This Study

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