Cited by 123Dementia and Cognitive Impairment ResearchAdvanced MRI Techniques and ApplicationsAlzheimer's disease research and treatments

Magnetic Resonance Spectroscopy in Alzheimer’s Disease: Systematic Review and Meta-Analysis

Wang, Hui, Tan, Lan, Wang, Hui-Fu, Liu, Ying, Yin, Rui-Hua, Wang, Wen-Ying, Chang, Xiao-Long, Jiang, Teng +1 more·2015·Journal of Alzheimer’s Disease

Abstract

Background: The application of non-invasive proton magnetic resonance spectroscopy ( 1 H-MRS) could potentially identify changes in cerebral metabolites in the patients with Alzheimer’s disease (AD). However, whether these metabolites can serve as biomarkers for the diagnosis of AD remains unclear. Objective: Using meta-analysis, we aimed to investigate the patterns of cerebral metabolite changes in several cerebral regions that are strongly associated with cognitive decline in AD patients. Methods: Using Hedges’ g effect size, a systematic search was performed in PubMed, Cochrane Library, Ovid, Embase, and EBSCO, and 38 studies were integrated into the final meta-analysis. Results: According to the observational studies, N-acetyl aspartate (NAA) in AD patients was significantly reduced in the posterior cingulate (PC) (effect size (ES) =−0.924, p < 0.005) and bilateral hippocampus (left hippocampus: ES =−1.329, p < 0.005; right hippocampus: ES =−1.287, p < 0.005). NAA/Cr (creatine) ratio decreased markedly in the PC (ES =−1.052, p < 0.005). Simultaneously, significant elevated myo-inositol (mI)/Cr ratio was found not only in the PC but also in the parietal gray matter. For lack of sufficient data, we failed to elucidate the efficacy of pharmacological interventions with the metabolites changes. Conclusion: The available data indicates that NAA, mI, and the NAA/Cr ratio might be potential biomarkers of brain dysfunction in AD subjects. Choline (Cho)/Cr and mI/NAA changes might also contribute toward the diagnostic process. Thus, large, well-designed studies correlated with cerebral metabolism are needed to better estimate the cerebral extent of alterations in brain metabolite levels in AD patients.

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Crossref · 10.3233/jad-143225

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  • The range of exposures in frontal cortex and thoracic spinal cord from <1 μg/g to approximately 9 μg/g in these animals largely reflects variability in the success of the intrathecal administration, as previously noted for ASO, rather than nominal dose.

    “The range of exposures in frontal cortex and thoracic spinal cord from <1 µg/g to approximately 9 µg/g in these animals (Fig. 3c) largely re ects variability in the success of the IT administration, as has be previously noted for ASO 32 , rather that nominal dose.”

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Authors
Wang, H., Tan, L., Wang, H.-F., Liu, Y., Yin, R.-H., Wang, W.-Y., Chang, X.-L., Jiang, T., & Yu, J.-T.
Affiliations
  • Qingdao University (CN)
  • Dalian Medical University (CN)
  • Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, China
  • Nanjing First Hospital (CN)
Corresponding author
  • Tan, Lan
  • Yu, Jin-Tai
Venue
Journal of Alzheimer’s Disease
Published
2015-06-26
Volume
46
Issue
4
Pages
1049-1070
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W2315419474
Cited by
123
References
95
Citations by year
2026: 7 · 2025: 6 · 2024: 17 · 2023: 13 · 2022: 21 · 2021: 15 · 2020: 17 · 2019: 9 · 2018: 6 · 2017: 7 · 2016: 4 · 2012: 1
FWCI
0.78
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
Alzheimer's disease, 1H NMR
MeSH terms
Alzheimer Disease, Aspartic Acid, Brain, Creatine, Humans, Magnetic Resonance Imaging, Magnetic Resonance Spectroscopy, Protons, Databases, Bibliographic

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