Evidence map›Paper›PMID 41843260›Full record

ArticleJournal of neurology2026

Quantitative susceptibility mapping of dentate nucleus iron in SCA6 and SCA31: comparison with pathological findings.

Risa Kagaya, Noriko Sato, Yuko Saito, Hiroyuki Maki, Hirohito Kan, Yukio Kimura, Yoko Shigemoto, Yuichi Morita, Yoshito Saito, Yuji Takahashi and 1 more

Abstract readComparative Study
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Article in Journal of neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

11 authors.

Risa KagayaDepartment of Radiology, National Centre Hospital, National Centre of Neurology and Psychiatry, 4-1-1 Ogawahigashi-Cho, Kodaira-shi, Tokyo, 187-8551, Japan.
Noriko SatoDepartment of Radiology, National Centre Hospital, National Centre of Neurology and Psychiatry, 4-1-1 Ogawahigashi-Cho, Kodaira-shi, Tokyo, 187-8551, Japan. snoriko@ncnp.go.jp.ORCID http://orcid.org/0000-0002-9305-7131
Yuko SaitoDepartment of Neuropathology (Brain Bank for Aging Research), Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi-ku, Tokyo, 173-0015, Japan.
Hiroyuki MakiDepartment of Radiology, Fujita Health University, Toyoake, Aichi, 470-1192, Japan.
Hirohito KanDepartment of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya Aichi, 461-8673, Japan.
Yukio KimuraDepartment of Radiology, National Centre Hospital, National Centre of Neurology and Psychiatry, 4-1-1 Ogawahigashi-Cho, Kodaira-shi, Tokyo, 187-8551, Japan.
Yoko ShigemotoDepartment of Radiology, National Centre Hospital, National Centre of Neurology and Psychiatry, 4-1-1 Ogawahigashi-Cho, Kodaira-shi, Tokyo, 187-8551, Japan.
Yuichi MoritaDepartment of Radiology, National Centre Hospital, National Centre of Neurology and Psychiatry, 4-1-1 Ogawahigashi-Cho, Kodaira-shi, Tokyo, 187-8551, Japan.
Yoshito SaitoDepartment of Radiology, National Centre Hospital, National Centre of Neurology and Psychiatry, 4-1-1 Ogawahigashi-Cho, Kodaira-shi, Tokyo, 187-8551, Japan.
Yuji TakahashiDepartment of Neurology, National Centre Hospital, National Centre of Neurology and Psychiatry, Kodaira, Tokyo, 187-8551, Japan.
Ukihide TateishiDepartment of Diagnostic Radiology, Institute of Science Tokyo, Bunkyo-ku, Tokyo, 113-8510, Japan.

Funding

Intramural Research Grant for Neurological and Psychiatric Disorders of the National Center of Neurology and Psychiatry 6-10Japan Agency for Medical Research and Development JP24dk0207074h0001Japan Agency for Medical Research and Development JP24wm0425019Japan Society for the Promotion of Science JP 22H04923Japan Society for the Promotion of Science JP 24K10827MHLW Research on rare and intractable diseases Program JPMH23FC1008
6 · The paper itself

Abstract

backgroundSpinocerebellar ataxia type 6 (SCA6) and 31 (SCA31) exhibit similar clinical and radiological features and have traditionally been distinguishable only through genetic testing. We focused on iron deposition in the cerebellar dentate nucleus (DN) to differentiate these diseases, referencing corresponding pathological findings.

methodsUsing quantitative susceptibility mapping (QSM), DN susceptibility was measured in 32 patients with SCA6, 31 with SCA31, and 37 controls, and the values were compared among groups. Correlations between susceptibility and disease duration or Scale for the Assessment and Rating of Ataxia (SARA) scores were also evaluated. In separate autopsy cases, Berlin blue and anti-ferritin immunostaining were performed on the DN in five SCA6 cases, one SCA31 case, and three controls.

resultsSusceptibility was significantly lower in patients with SCA6 than in those with SCA31 or controls. In SCA6, susceptibility inversely correlated with disease duration, whereas no such correlations were observed in SCA31. In contrast, no significant correlation was noted between susceptibility and SARA scores in either SCA6 or SCA31. Pathological findings showed absent ferritin staining in SCA6, strong staining in controls, and intermediate staining in SCA31. Berlin blue staining was negative in all groups.

conclusionsReduced DN susceptibility in SCA6 reflects ferritin loss, distinguishing it from SCA31. Assessing DN susceptibility using QSM or SWI may provide useful imaging markers to complement the diagnosis of SCA6 and SCA31.

Indexed as

Cerebellar NucleiIronSpinocerebellar AtaxiasAdultAgedFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedIronCerebellar dentate nucleusFerritin stainingQuantitative susceptibility mapping (QSM)Spinocerebellar ataxia type 31 (SCA31)Spinocerebellar ataxia type 6 (SCA6)

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.