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Alpha 1-antichymotrypsin may be a biomarker for the progression of amnestic mild cognitive impairment.
Liu, Shunjie; Pan, Junhao; Tang, Ke; Lei, Qingfeng; He, Lu; Cai, Xiaodong; Li, Zhong.
Afiliação
  • Liu S; Department of Neurology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, China.
  • Pan J; Department of Psychology, Sun Yat-Sen University, Guangzhou, 510006, China.
  • Tang K; Department of Neurology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, China.
  • Lei Q; Department of Neurology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, China.
  • He L; Department of Neurology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, China.
  • Cai X; Department of Neurology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, China.
  • Li Z; Department of Neurology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, China. lzhong@mail.sysu.edu.cn.
Acta Neurol Belg ; 121(2): 451-464, 2021 Apr.
Article em En | MEDLINE | ID: mdl-31494860
ABSTRACT
Alpha 1-antichymotrypsin (ACT), an acute-phase protein, has been reported to be increased in the brain and blood of Alzheimer's disease (AD) patients. However, few previous studies have focused on amnestic mild cognitive impairment (aMCI) patients. The aim of our study was to investigate the changing trend in ACT concentrations during the progression of aMCI. Hence, we measured the cerebrospinal fluid (CSF) and serum levels of ACT in aMCI subjects and normal controls (NC) at 2-year follow-up assessments using ELISA and Western blot. Forty-four NCs, 28 stable aMCI (sMCI) patients, and 20 progressive aMCI (pMCI) patients finished the follow-up assessments, and their data were used for analysis. We found that CSF and serum ACT levels of both sMCI and pMCI patients increased over time, while those of NCs remained stable; CSF and serum ACT levels were significantly higher in both sMCI and pMCI patients than in NCs, except for baseline serum ACT. In pMCI patients prior to developing AD, CSF and serum ACT levels were already significantly higher than those in sMCI patients. The ROC curve results demonstrated that combining CSF and serum ACT levels can distinguish aMCI patients from NCs with high specificity and sensitivity. Our data suggest that ACT may be a biomarker for diagnosing aMCI.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Alfa 1-Antiquimotripsina / Disfunção Cognitiva / Amnésia Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Alfa 1-Antiquimotripsina / Disfunção Cognitiva / Amnésia Idioma: En Ano de publicação: 2021 Tipo de documento: Article