The clinical application of optimized AT(N) classification in Alzheimer’s clinical syndrome (ACS) and non-ACS conditions

Kasuga, Kensaku; Tsukie, Tamao; Kikuchi, Masataka; Tokutake, Takayoshi; Washiyama, Kazuo; Simizu, Soichiro; Yamada, Hiroshi; Kuroha, Yasuko; Yajima, Ryuji; Mori, Hiroshi; Arakawa, Yasuaki; Onda, Kiyoshi; Miyashita, Akinori; Onodera, Osamu; Iwatsubo, Takeshi; Ikeuchi, Takeshi

doi:10.1016/j.neurobiolaging.2023.03.007

Neurobiology of Aging

2023

DOI: 10.1016/j.neurobiolaging.2023.03.007

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The clinical application of optimized AT(N) classification in Alzheimer’s clinical syndrome (ACS) and non-ACS conditions

Kensaku Kasuga

Tamao Tsukie

Masataka Kikuchi

et al.

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Cited by 8 publications

References 41 publications

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Utility of Cerebrospinal Fluid Transferrin Receptor per Ferritin Ratio in Progressive Supranuclear Palsy

Akiyama,

Kanazawa,

Kasuga

et al. 2024

Movement Disord Clin Pract

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BackgroundProgressive supranuclear palsy (PSP) is a major atypical parkinsonism. Because diagnosis based on the cardinal clinical features is often difficult, misdiagnosis with Parkinson's disease (PD) and multiple system atrophy (MSA) is common in PSP patients. Iron metabolism genes are reportedly involved in tau‐accumulating neuronal cell death and ferroptosis in PSP, which is more severe than PD and MSA. The validity of transferrin receptor (TfR) expression as a biomarker of ferroptosis was also demonstrated.ObjectiveWe investigated whether TfR and the TfR to ferritin ratio in the cerebrospinal fluid (CSF) is a diagnostic biomarker of PSP.MethodsThis study included 2 independent retrospective CSF cohorts comprising patients, respectively, from Niigata University and a multicenter memory clinic, consisting of patients with PSP, PD, and MSA. All patients were classified as clinically probable or higher based on the Society of Movement Disorders Criteria. TfR and ferritin levels in the CSF were measured using Luminex assay.ResultsThe levels of TfR in patients with PSP were higher than those in patients with PD and MSA in cohort 1 (PSP: N = 16, PD: N = 13, MSA: N = 20). The TfR to ferritin ratio in patients with PSP was significantly higher than that in patients with MSA. Subsequently, we validated these results in cohort 2 (PSP: N = 23, MSA: N = 6). The TfR to ferritin ratio was significantly higher in patients with PSP than in those with MSA.ConclusionsThe CSF TfR to transferrin ratio was elevated in patients with PSP. These results should be validated in a larger cohort of patients.

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Utility of Cerebrospinal Fluid Transferrin Receptor per Ferritin Ratio in Progressive Supranuclear Palsy

Akiyama,

Kanazawa,

Kasuga

et al. 2024

Movement Disord Clin Pract

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show abstract

Real-word application of the AT(N) classification and disease-modifying treatment eligibility in a hospital-based cohort

Canu,

Rugarli,

Coraglia

et al. 2024

J Neurol

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Differential centiloid scale normalization techniques: comparison between hybrid PET/MRI and independently acquired MRI

Yamakuni,

Murakami,

Ukon

et al. 2024

Ann Nucl Med

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The clinical application of optimized AT(N) classification in Alzheimer’s clinical syndrome (ACS) and non-ACS conditions

Cited by 8 publications

References 41 publications

Utility of Cerebrospinal Fluid Transferrin Receptor per Ferritin Ratio in Progressive Supranuclear Palsy

Utility of Cerebrospinal Fluid Transferrin Receptor per Ferritin Ratio in Progressive Supranuclear Palsy

Real-word application of the AT(N) classification and disease-modifying treatment eligibility in a hospital-based cohort

Differential centiloid scale normalization techniques: comparison between hybrid PET/MRI and independently acquired MRI

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