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Vaitkienė P, Pranckevičienė A, Radžiūnas A, Mišeikaitė A, Miniotaitė G, Belickienė V, Laucius O, Deltuva V. Association of Serum Extracellular Vesicle miRNAs with Cognitive Functioning and Quality of Life in Parkinson's Disease. Biomolecules 2024; 14:1000. [PMID: 39199388 PMCID: PMC11352584 DOI: 10.3390/biom14081000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/09/2024] [Accepted: 08/09/2024] [Indexed: 09/01/2024] Open
Abstract
The identification of mechanisms associated with Parkinson disease (PD) development in cognitive functioning would be of great usefulness to clarify PD pathogenesis and to develop preventive and therapeutic strategies. In this study, blood serum extracellular vesicle (EV) levels of the candidate microRNAs (small noncoding RNAs that play a role in gene expression regulation):,miR-7, miR-21, miR-153, miR-155, miR-200a and miR-214, have been investigated for association with PD in a group of 93 patients with cognitive parameters, PD symptoms, affected quality of life and some clinical characteristics. MiRNA was extracted from patients' blood serum EVs, transcribed into cDNA and their expression was evaluated using RT-PCR. The miR-153 and miR-200a showed the most plausible correlations with cognitive functioning parameters such as general intellectual functioning, psychomotor speed, mental flexibility, and nonverbal executive functions. Moreover, lower levels of miR-153 were associated with attention span, working memory and psychomotor speed with learning. Increased levels of miR-200a, miR-7, miR-214, and miR-155 were also linked with neurological functioning, such as bradykinesia, tremor, balance and others. Despite the fact that due to small sample size, our results should be considered as preliminary, our study suggests that miRNA expression in EVs could be associated with symptom severity, cognitive impairment and quality of life in PD.
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Affiliation(s)
- Paulina Vaitkienė
- Laboratory of Molecular Neurobiology, Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50009 Kaunas, Lithuania
| | - Aistė Pranckevičienė
- Health Psychology Department, Faculty of Public Health, Medical Academy, Lithuania University of Health Sciences, Tilžės g. 18, LT-47181 Kaunas, Lithuania;
- Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50009 Kaunas, Lithuania
| | - Andrius Radžiūnas
- Department of Neurosurgery, Medical Academy, Lithuanian University of Health Sciences, Kauno Klinikos, Eiveniu Str. 2, LT-50009 Kaunas, Lithuania
| | - Augustina Mišeikaitė
- Laboratory of Molecular Neurobiology, Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50009 Kaunas, Lithuania
| | - Giedrė Miniotaitė
- Laboratory of Molecular Neurobiology, Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50009 Kaunas, Lithuania
- Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, A. Mickeviciaus g. 9, LT-44307 Kaunas, Lithuania
| | - Violeta Belickienė
- Laboratory of Molecular Neurobiology, Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50009 Kaunas, Lithuania
- Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, A. Mickeviciaus g. 9, LT-44307 Kaunas, Lithuania
| | - Ovidijus Laucius
- Neurology Department, Lithuanian University of Health Sciences, Kauno Klinikos, Eiveniu Str. 2, LT-50009 Kaunas, Lithuania
| | - Vytenis Deltuva
- Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50009 Kaunas, Lithuania
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Joseph S, Haystead A, Robbins CB, Threlfall A, MacGillivray TJ, Stinnett S, Grewal DS, Fekrat S. Analysis of the Retinal and Choroidal Vasculature Using Ultrawidefield Fundus Imaging in Mild Cognitive Impairment and Normal Cognition. OPHTHALMOLOGY SCIENCE 2024; 4:100480. [PMID: 38827032 PMCID: PMC11141260 DOI: 10.1016/j.xops.2024.100480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 06/04/2024]
Abstract
Purpose To utilize ultrawidefield (UWF) imaging to evaluate retinal and choroidal vasculature and structure in individuals with mild cognitive impairment (MCI) compared with that of controls with normal cognition. Design Prospective cross sectional study. Participants One hundred thirty-one eyes of 82 MCI patients and 230 eyes of 133 cognitively normal participants from the Eye Multimodal Imaging in Neurodegenerative Disease Study. Methods A scanning laser ophthalmoscope (California, Optos Inc) was used to obtain UWF fundus color images. Images were analyzed with the Vasculature Assessment Platform for Images of the Retina UWF (VAMPIRE-UWF 2.0, Universities of Edinburgh and Dundee) software. Main outcome measures Imaging parameters included vessel width gradient, vessel width intercept, large vessel choroidal vascular density, vessel tortuosity, and vessel fractal dimension. Results Both retinal artery and vein width gradients were less negative in MCI patients compared with controls, demonstrating decreased rates of vessel thinning at the periphery (P < 0.001; P = 0.027). Retinal artery and vein width intercepts, a metric that extrapolates the width of the vessel at the center of the optic disc, were smaller in MCI patients compared with that of controls (P < 0.001; P = 0.017). The large vessel choroidal vascular density, which quantifies the vascular area versus the total choroidal area, was greater in MCI patients compared with controls (P = 0.025). Conclusions When compared with controls with normal cognition, MCI patients had thinner retinal vasculature manifested in both the retinal arteries and the veins. In MCI, these thinner arteries and veins attenuated at a lower rate when traveling toward the periphery. MCI patients also had increased choroidal vascular density. Financial Disclosures Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
- Suzanna Joseph
- Department of Ophthalmology, Duke University School of Medicine, Durham, North Carolina
- iMIND Research Group, Duke University School of Medicine, Durham, North Carolina
| | - Alice Haystead
- iMIND Research Group, Duke University School of Medicine, Durham, North Carolina
| | - Cason B. Robbins
- Department of Ophthalmology, Duke University School of Medicine, Durham, North Carolina
- iMIND Research Group, Duke University School of Medicine, Durham, North Carolina
| | - Adam Threlfall
- Centre for Clinical Brain Science, University of Edinburgh, Scotland, United Kingdom
| | - Tom J. MacGillivray
- Centre for Clinical Brain Science, University of Edinburgh, Scotland, United Kingdom
| | - Sandra Stinnett
- Department of Ophthalmology, Duke University School of Medicine, Durham, North Carolina
- iMIND Research Group, Duke University School of Medicine, Durham, North Carolina
| | - Dilraj S. Grewal
- Department of Ophthalmology, Duke University School of Medicine, Durham, North Carolina
- iMIND Research Group, Duke University School of Medicine, Durham, North Carolina
| | - Sharon Fekrat
- Department of Ophthalmology, Duke University School of Medicine, Durham, North Carolina
- iMIND Research Group, Duke University School of Medicine, Durham, North Carolina
- Department of Neurology, Duke University School of Medicine, Durham, North Carolina
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Kim H, Hillis AE, Themistocleous C. Machine Learning Classification of Patients with Amnestic Mild Cognitive Impairment and Non-Amnestic Mild Cognitive Impairment from Written Picture Description Tasks. Brain Sci 2024; 14:652. [PMID: 39061392 PMCID: PMC11274603 DOI: 10.3390/brainsci14070652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024] Open
Abstract
Individuals with Mild Cognitive Impairment (MCI), a transitional stage between cognitively healthy aging and dementia, are characterized by subtle neurocognitive changes. Clinically, they can be grouped into two main variants, namely patients with amnestic MCI (aMCI) and non-amnestic MCI (naMCI). The distinction of the two variants is known to be clinically significant as they exhibit different progression rates to dementia. However, it has been particularly challenging to classify the two variants robustly. Recent research indicates that linguistic changes may manifest as one of the early indicators of pathology. Therefore, we focused on MCI's discourse-level writing samples in this study. We hypothesized that a written picture description task can provide information that can be used as an ecological, cost-effective classification system between the two variants. We included one hundred sixty-nine individuals diagnosed with either aMCI or naMCI who received neurophysiological evaluations in addition to a short, written picture description task. Natural Language Processing (NLP) and a BERT pre-trained language model were utilized to analyze the writing samples. We showed that the written picture description task provided 90% overall classification accuracy for the best classification models, which performed better than cognitive measures. Written discourses analyzed by AI models can automatically assess individuals with aMCI and naMCI and facilitate diagnosis, prognosis, therapy planning, and evaluation.
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Affiliation(s)
- Hana Kim
- Department of Communication Sciences and Disorders, University of South Florida, Tampa, FL 33620, USA;
| | - Argye E. Hillis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA;
- Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Cognitive Science, Johns Hopkins University, Baltimore, MD 21287, USA
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Gutierrez Reyes CD, Atashi M, Fowowe M, Onigbinde S, Daramola O, Lubman DM, Mechref Y. Differential expression of N-glycopeptides derived from serum glycoproteins in mild cognitive impairment (MCI) patients. Proteomics 2024:e2300620. [PMID: 38602241 DOI: 10.1002/pmic.202300620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
Mild cognitive impairment (MCI) is an early stage of memory loss that affects cognitive abilities with the aging of individuals, such as language or visual/spatial comprehension. MCI is considered a prodromal phase of more complicated neurodegenerative diseases such as Alzheimer's. Therefore, accurate diagnosis and better understanding of the disease prognosis will facilitate prevention of neurodegeneration. However, the existing diagnostic methods fail to provide precise and well-timed diagnoses, and the pathophysiology of MCI is not fully understood. Alterations of the serum N-glycoproteome expression could represent an essential contributor to the overall pathophysiology of neurodegenerative diseases and be used as a potential marker to assess MCI diagnosis using less invasive procedures. In this approach, we identified N-glycopeptides with different expressions between healthy and MCI patients from serum glycoproteins. Seven of the N-glycopeptides showed outstanding AUC values, among them the antithrombin-III Asn224 + 4-5-0-2 with an AUC value of 1.00 and a p value of 0.0004. According to proteomics and ingenuity pathway analysis (IPA), our data is in line with recent publications, and the glycoproteins carrying the identified N-sites play an important role in neurodegeneration.
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Affiliation(s)
| | - Mojgan Atashi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Mojibola Fowowe
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Sherifdeen Onigbinde
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - Oluwatosin Daramola
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
| | - David M Lubman
- Department of Surgery, The University of Michigan, Ann Arbor, Michigan, USA
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, USA
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Coughlan C, Lindenberger J, Jacot JG, Johnson NR, Anton P, Bevers S, Welty R, Graner MW, Potter H. Specific Binding of Alzheimer's Aβ Peptides to Extracellular Vesicles. Int J Mol Sci 2024; 25:3703. [PMID: 38612514 PMCID: PMC11011551 DOI: 10.3390/ijms25073703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Alzheimer's disease (AD) is the fifth leading cause of death among adults aged 65 and older, yet the onset and progression of the disease is poorly understood. What is known is that the presence of amyloid, particularly polymerized Aβ42, defines when people are on the AD continuum. Interestingly, as AD progresses, less Aβ42 is detectable in the plasma, a phenomenon thought to result from Aβ becoming more aggregated in the brain and less Aβ42 and Aβ40 being transported from the brain to the plasma via the CSF. We propose that extracellular vesicles (EVs) play a role in this transport. EVs are found in bodily fluids such as blood, urine, and cerebrospinal fluid and carry diverse "cargos" of bioactive molecules (e.g., proteins, nucleic acids, lipids, metabolites) that dynamically reflect changes in the cells from which they are secreted. While Aβ42 and Aβ40 have been reported to be present in EVs, it is not known whether this interaction is specific for these peptides and thus whether amyloid-carrying EVs play a role in AD and/or serve as brain-specific biomarkers of the AD process. To determine if there is a specific interaction between Aβ and EVs, we used isothermal titration calorimetry (ITC) and discovered that Aβ42 and Aβ40 bind to EVs in a manner that is sequence specific, saturable, and endothermic. In addition, Aβ incubation with EVs overnight yielded larger amounts of bound Aβ peptide that was fibrillar in structure. These findings point to a specific amyloid-EV interaction, a potential role for EVs in the transport of amyloid from the brain to the blood, and a role for this amyloid pool in the AD process.
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Affiliation(s)
- Christina Coughlan
- University of Colorado Alzheimer’s and Cognition Center (CUACC), Linda Crnic Institute for Down Syndrome (LCI), Department of Neurology, University of Colorado Anschutz Medical Campus, 13001 E. 17th Pl, Aurora, CO 80045, USA (H.P.)
| | - Jared Lindenberger
- Structural Biology and Biophysics Core, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA (R.W.)
- Duke Human Vaccine Institute, Duke University, 2 Genome Ct., Durham, NC 27710, USA
| | - Jeffrey G. Jacot
- Department of Bioengineering, University of Colorado Anschutz Medical Campus, 13001 E. 17th Pl, Aurora, CO 80045, USA
| | - Noah R. Johnson
- University of Colorado Alzheimer’s and Cognition Center (CUACC), Linda Crnic Institute for Down Syndrome (LCI), Department of Neurology, University of Colorado Anschutz Medical Campus, 13001 E. 17th Pl, Aurora, CO 80045, USA (H.P.)
| | - Paige Anton
- University of Colorado Alzheimer’s and Cognition Center (CUACC), Linda Crnic Institute for Down Syndrome (LCI), Department of Neurology, University of Colorado Anschutz Medical Campus, 13001 E. 17th Pl, Aurora, CO 80045, USA (H.P.)
| | - Shaun Bevers
- Structural Biology and Biophysics Core, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA (R.W.)
| | - Robb Welty
- Structural Biology and Biophysics Core, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA (R.W.)
| | - Michael W. Graner
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, 13001 E. 17th Pl, Aurora, CO 80045, USA
| | - Huntington Potter
- University of Colorado Alzheimer’s and Cognition Center (CUACC), Linda Crnic Institute for Down Syndrome (LCI), Department of Neurology, University of Colorado Anschutz Medical Campus, 13001 E. 17th Pl, Aurora, CO 80045, USA (H.P.)
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Liu T, Li N, Pu J, Zhang C, Xu K, Wang W, Liu L, Gao L, Xu X, Tan J. The plasma derived exosomal miRNA-483-5p/502-5p serve as potential MCI biomarkers in aging. Exp Gerontol 2024; 186:112355. [PMID: 38190948 DOI: 10.1016/j.exger.2023.112355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/18/2023] [Accepted: 12/30/2023] [Indexed: 01/10/2024]
Abstract
Alzheimer's disease (AD) is the leading cause of dementia and is rapidly becoming one of the most costly, fatal diseases, which is typically discovered in the late stage of molecular pathology, at which point medication intervention is irreversible. As a result, there is an urgent need for a low-cost, least-invasive way of screening cognitive impairment, with the goal of identifying persons at risk of AD. Mild cognitive impairment (MCI) has been described as a transitional state between normal cognitive aging and AD. Early detection and timely tracking of MCI can to some extent prevent the progression towards AD. We found a population in Northwestern China has a comparatively high prevalence of MCI. Continued education, consistent exercise, and a secure financial situation can all help older people maintain cognitive function. Due to the critical role of circulating microRNAs in intercellular signaling and the perturbations thereof, their investigation has assumed paramount significance in elucidating various pathological conditions. Numerous investigations have substantiated the significance of circulating miRNAs specifically in MCI. Here, we evaluated miR-483-5p (Area Under the Curve (AUC) is 0.901, sensitivity 79.2 % and specificity 100 %) and miR-502-5p (AUC is 0.872, sensitivity 79.2 % and specificity 83.3 %), which were derived from plasma exosomes and maintained at high levels in elderly people with MCI, could be employed as promising noninvasive biomarkers.
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Affiliation(s)
- Ting Liu
- Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation & Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Na Li
- Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation & Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Jingjing Pu
- Department of Integrated Oncology, Center for Integrated Oncology (CIO) Bonn, University Hospital Bonn, Bonn, Germany
| | - Caihong Zhang
- Changkong Hospital, Tianshui 741000, Gansu Province, China
| | - Kun Xu
- Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation & Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Wenting Wang
- Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation & Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Linsheng Liu
- Changkong Hospital, Tianshui 741000, Gansu Province, China
| | - Lihong Gao
- Changkong Hospital, Tianshui 741000, Gansu Province, China
| | - Xiaonan Xu
- Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation & Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Jiying Tan
- Gansu Provincial Key Laboratory of Evidence Based Medicine and Clinical Translation & Department of Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China.
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Malashenkova IK, Krynskiy SA, Ogurtsov DP, Khailov NA, Filippova EA, Moskvina SN, Ushakov VL, Orlov VA, Andryushchenko AV, Osipova NG, Syunyakov TS, Savilov VB, Karpenko OA, Kurmyshev MV, Kostyuk GP, Didkovsky NA. [Immunological and neuroanatomic markers of the clinical dynamics of MCI and pre-MCI]. Zh Nevrol Psikhiatr Im S S Korsakova 2024; 124:81-91. [PMID: 39269300 DOI: 10.17116/jnevro202412408181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2024]
Abstract
OBJECTIVE To study the relationship of the parameters of immunity and systemic inflammation with the structural magnetic resonance imaging (MRI) parameters in patients with mild cognitive impairment (MCI) and pre-MCI undergoing neurocognitive rehabilitation to search for candidate markers of its effectiveness. MATERIAL AND METHODS The main group included 49 patients, aged ≥60 years, with MCI and pre-MCI with memory impairment, who underwent a course of neurorehabilitation for 5 weeks. The control group included 19 volunteers of similar age with a total MoCA score of ≥25, who did not have cognitive impairment and immuno-inflammatory disorders. The parameters of cellular and humoral immunity and markers of inflammation were studied, and structural MRI was performed. RESULTS The content of activated natural killer cells (NK-cells) was increased in MCI and pre-MCI (0.63±0.12% vs. 0.22±0.07% in the control group, p=2.2·10-7). The level of immunoglobulin G (IgG) <12.5 g/l in patients with MCI and pre-MCI with the Montreal Cognitive Assessment Scale (MoCA) score <22 was associated with a decrease in the volume of the right nucleus accumbens (376±35 mm3 in patients with IgG <12.5 g/l (p=0.0013) and 480±44 mm3 at IgG <12.5 g/l, 480±44 mm3 in the control group), as well as with a decrease of the thickness and volume of a number of other cortical zones. A logistic regression model including the level of immunoglobulin G, NK cells, CD8+ NK cells and right amygdala volume was constructed to predict the number of MoCA scores 6 months after the course of rehabilitation (R2=0.57; p<1·10-5; standard error of estimate: 2.93). CONCLUSION As a result of this work, the perspectives of assessing the immunological parameters in combination with socio-demographic data and morphometric changes of the brain as potential prognostic markers of the dynamics of cognitive impairment in patients with MCI and pre-MCI after neurorehabilitation has been shown.
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Affiliation(s)
- I K Malashenkova
- National Research Center «Kurchatov Institute», Moscow, Russia
- Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow, Russia
| | - S A Krynskiy
- National Research Center «Kurchatov Institute», Moscow, Russia
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
| | - D P Ogurtsov
- National Research Center «Kurchatov Institute», Moscow, Russia
- Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow, Russia
| | - N A Khailov
- National Research Center «Kurchatov Institute», Moscow, Russia
| | - E A Filippova
- National Research Center «Kurchatov Institute», Moscow, Russia
| | - S N Moskvina
- National Research Center «Kurchatov Institute», Moscow, Russia
| | - V L Ushakov
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
- National Research Nuclear University MEPhI, Moscow, Russia
- Lomonosov Moscow State University, Moscow, Russia
| | - V A Orlov
- National Research Center «Kurchatov Institute», Moscow, Russia
| | - A V Andryushchenko
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
- Lomonosov Moscow State University, Moscow, Russia
| | - N G Osipova
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
| | - T S Syunyakov
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
- Republican Specialized Scientific-Practical Medical Center of Narcology, Salar, Uzbekistan
- Samara State Medical University, Samara, Russia
| | - V B Savilov
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
| | - O A Karpenko
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
| | - M V Kurmyshev
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
| | - G P Kostyuk
- Alekseev Psychiatric Clinical Hospital No. 1, Moscow, Russia
| | - N A Didkovsky
- Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow, Russia
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Yang L, Zhao F, Sun Y, Wang Z, Li Q, Wang H, Lu Y. N-3 Polyunsaturated Fatty Acids in Elderly with Mild Cognitive Impairment: A Systemic Review and Meta-Analysis. J Alzheimers Dis 2024; 99:S81-S95. [PMID: 36776054 PMCID: PMC11091617 DOI: 10.3233/jad-220863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2022] [Indexed: 02/12/2023]
Abstract
Background Mild cognitive impairment (MCI) is the prodromal stage of dementia. In this stage, reasonable intervention measures can help to delay the decline of cognitive function. Supplementation of n-3 polyunsaturated fatty acids (n-3PUFAs) may be beneficial to delay the decline of cognitive function in the elderly. Objective To investigate the effectiveness of docosapentaenoic acid (DHA) or/and eicosapentaenoic acid (EPA) supplements in the elderly with MCI. Methods Eight electronic databases, PubMed, Cochrane Library, Embase, VIP, SinoMed, Web of Science, CNKI, and WANFANG DATA, were searched for related articles from inception until January 2022. Subgroup analyses and sensitivity analyses were performed to detect confounding variables. Standardized mean differences (SMD) with 95% confidence intervals (CI) were determined. Heterogeneity was evaluated by I2 statistics. Publication bias was detected using funnel plots. Stata12.0 was used for Begg's and Egger's test to quantify whether publication bias. Linear relationship between global cognition and covariates was examined in meta-regression analysis. Results Twelve studies (n = 1,124) were included. The methodological quality of research is mostly medium. Compared with placebo, n-3PUFAs supplements have benefits on global cognition [SMD = 0.51, 95% CI(0.12, 0.91), p = 0.01]. No significant differences were observed between intervention group and placebo on language fluency, executive functions, and depression. Conclusion Our findings indicated DHA and/or EPA supplements have benefits on global cognition, and it may also reduce the level of blood amyloid-β (Aβ)-related biomarkers (e.g., Aβ40, Aβ42) and inflammatory factors (e.g., 1L-6, 1L-10). Since there are only two relative articles, more research is needed in the future to clarify the relationship.
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Affiliation(s)
- Lei Yang
- School of Nursing, Xinxiang Medical University, Xinxiang, Henan, China
| | - Fengxue Zhao
- School of Nursing, Xinxiang Medical University, Xinxiang, Henan, China
| | - Yadi Sun
- School of Nursing, Xinxiang Medical University, Xinxiang, Henan, China
| | - Ziyi Wang
- School of Nursing, Xinxiang Medical University, Xinxiang, Henan, China
| | - Qianwen Li
- Department of Nutrition, Henan Provincial People’s Hospital, Zhengzhou, Henan, China
| | - Hao Wang
- Department of Nutrition, Precision Nutrition Innovation Center, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Ying Lu
- Department of Nursing, Henan Provincial People’s Hospital, Zhengzhou, Henan, China
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Zhang W, Yuan Y, Cui X, Chen S, Zhuang X. The level of serum retinol-binding protein is associated with diabetic mild cognitive impairment. Brain Res 2024; 1822:148670. [PMID: 37944571 DOI: 10.1016/j.brainres.2023.148670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/20/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Several studies have shown that retinol-binding protein (RBP) is linked to diabetes and neurodegenerative diseases. However, no studies have elucidated the relationship between RBP and diabetic cognitive disorders. OBJECTIVE To determine whether the change characteristics of serum RBP are associated with alterations in cognitive functioning in type 2 diabetes mellitus (T2DM). METHODS In this study, 252 patients with T2DM and 34 people as healthy controls were included. According to the Montreal Cognitive Assessment (MoCA), the diabetic subjects were divided into the mild cognitive impairment (MCI) group and the Non-MCI group. Demographic characteristics and clinical indicators as well as serum RBP levels were analyzed. RESULTS The serum RBP levels in the MCI group were lower compared with the Non-MCI group (P = 0.02). The level of RBP was higher in the diabetes without MCI group than in the healthy control (P < 0.001). Serum RBP levels were positively correlated with MoCA scores (r = 0.178, P = 0.003). Binary Logistic regression model analysis showed that low RBP [odds ratio (OR) = 0.936], old age (OR = 1.074), high fasting blood glucose (OR = 1.164), and low fasting C-peptide (OR = 0.722) may be independent risk factors for diabetic MCI. The ROC curve of serum RBP for predicting diabetic MCI showed that the area under the curve was 0.630. CONCLUSIONS Our study revealed an association between serum RBP and diabetic MCI. Serum RBP levels in diabetic MCI are lower and correlated with cognitive function.
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Affiliation(s)
- Wenjie Zhang
- Department of General Practice, The Second Hospital of Shandong University, Jinan 250000, China
| | - Yuqi Yuan
- Department of Clinical Epidemiology and Evidence-based Medicine, The Second Hospital of Shandong University, Jinan 250000, China
| | - Xiaoxia Cui
- The Second Hospital of Shandong University, Jinan 250000, China
| | - Shihong Chen
- Department of Endocrinology, The Second Hospital of Shandong University, Jinan 250000, China.
| | - Xianghua Zhuang
- Department of Endocrinology, The Second Hospital of Shandong University, Jinan 250000, China.
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10
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De Felice B, Coppola C, Bonavita S, Signoriello E, Montanino C, Farinella F. Exploring Circulating Long Non-Coding RNAs in Mild Cognitive Impairment Patients' Blood. Biomedicines 2023; 11:2963. [PMID: 38001964 PMCID: PMC10669861 DOI: 10.3390/biomedicines11112963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Mild cognitive impairment (MCI) is a transitional clinical stage prior to dementia. Patients with amnestic MCI have a high risk of progression toward Alzheimer's disease. Both amnestic mild cognitive impairment and sporadic Alzheimer's disease are multifactorial disorders consequential from a multifaceted cross-talk among molecular and biological processes. Non-coding RNAs play an important role in the regulation of gene expression, mainly long non-coding RNAs (lncRNAs), that regulate other RNA transcripts through binding microRNAs. Cross-talk between RNAs, including coding RNAs and non-coding RNAs, produces a significant regulatory network all through the transcriptome. The relationship of genes and non-coding RNAs could improve the knowledge of the genetic factors contributing to the predisposition and pathophysiology of MCI. The objective of this study was to identify the expression patterns and relevant lncRNA-associated miRNA regulatory axes in the blood of MCI patients, which includes lncRNA-SNHG16, lncRNA-H19, and lncRNA-NEAT1. Microarray investigations have demonstrated modifications in the expression of long non-coding RNAs (lncRNA) in the blood of patients with MCI compared with control samples. This is the first study to explore lncRNA profiles in mild cognitive impairment blood. Our study proposes RNAs targets involved in molecular pathways connected to the pathogenesis of MCI.
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Affiliation(s)
- Bruna De Felice
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Università degli Studi della Campania “Luigi Vanvitelli”, Via G. Vivaldi 42, 81100 Caserta, Italy;
| | - Cinzia Coppola
- Department of Advanced Medical and Surgical Sciences, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (C.C.); (S.B.); (E.S.)
| | - Simona Bonavita
- Department of Advanced Medical and Surgical Sciences, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (C.C.); (S.B.); (E.S.)
| | - Elisabetta Signoriello
- Department of Advanced Medical and Surgical Sciences, University of Campania “L. Vanvitelli”, 80138 Naples, Italy; (C.C.); (S.B.); (E.S.)
| | - Concetta Montanino
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Università degli Studi della Campania “Luigi Vanvitelli”, Via G. Vivaldi 42, 81100 Caserta, Italy;
| | - Federica Farinella
- Division of Clinical Pathology, Laboratori Vita S.r.l., Via Sabaudia 19, 04100 Latina, Italy;
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11
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Wang H, Ma LZ, Sheng ZH, Liu JY, Yuan WY, Guo F, Zhang W, Tan L. Association between cerebrospinal fluid clusterin and biomarkers of Alzheimer's disease pathology in mild cognitive impairment: a longitudinal cohort study. Front Aging Neurosci 2023; 15:1256389. [PMID: 37941999 PMCID: PMC10629112 DOI: 10.3389/fnagi.2023.1256389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/10/2023] [Indexed: 11/10/2023] Open
Abstract
Background Clusterin, a glycoprotein implicated in Alzheimer's disease (AD), remains unclear. The objective of this study was to analyze the effect of cerebrospinal fluid (CSF) clusterin in relation to AD biomarkers using a longitudinal cohort of non-demented individuals. Methods We gathered a sample comprising 86 individuals under cognition normal (CN) and 134 patients diagnosed with MCI via the Alzheimer's Disease Neuroimaging Initiative (ADNI) database. To investigate the correlation of CSF clusterin with cognitive function and markers of key physiological changes, we employed multiple linear regression and mixed-effect models. We undertook a causal mediation analysis to inspect the mediating influence of CSF clusterin on cognitive abilities. Results Pathological characteristics associated with baseline Aβ42, Tau, brain volume, exhibited a correlation with initial CSF clusterin in the general population, Specifically, these correlations were especially prominent in the MCI population; CSF Aβ42 (PCN = 0.001; PMCI = 0.007), T-tau (PCN < 0.001; PMCI < 0.001), and Mid temporal (PCN = 0.033; PMCI = 0.005). Baseline CSF clusterin level was predictive of measurable cognitive shifts in the MCI population, as indicated by MMSE (β = 0.202, p = 0.029), MEM (β = 0.186, p = 0.036), RAVLT immediate recall (β = 0.182, p = 0.038), and EF scores (β = 0.221, p = 0.013). In MCI population, the alterations in brain regions (17.87% of the total effect) mediated the effect of clusterin on cognition. It was found that variables such as age, gender, and presence of APOE ε4 carrier status, influenced some of these connections. Conclusion Our investigation underscored a correlation between CSF clusterin concentrations and pivotal AD indicators, while also highlighting clusterin's potential role as a protective factor for cognitive abilities in MCI patients.
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Affiliation(s)
- Hao Wang
- Department of Neurology, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang, China
| | - Ling-Zhi Ma
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Ze-Hu Sheng
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Jia-Yao Liu
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Wei-Yu Yuan
- Department of Neurology, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang, China
| | - Fan Guo
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Wei Zhang
- Department of Neurology, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang, China
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
- Department of Neurology, Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Lan Tan
- Department of Neurology, Affiliated Hospital of Weifang Medical University, School of Clinical Medicine, Weifang Medical University, Weifang, China
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
- Department of Neurology, Qingdao Municipal Hospital, University of Health and Rehabilitation Sciences, Qingdao, China
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12
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Rotblatt LJ, Aiken-Morgan AT, Marsiske M, Horgas AL, Thomas KR. Do Associations Between Vascular Risk and Mild Cognitive Impairment Vary by Race? J Aging Health 2023; 35:74S-83S. [PMID: 33497299 PMCID: PMC8310897 DOI: 10.1177/0898264320984357] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objectives: Given prevalence differences of mild cognitive impairment (MCI) among Black and white older adults, this study aimed to examine whether overall vascular risk factor (VRF) burden and individual VRF associations with amnestic (aMCI) and nonamnestic (naMCI) MCI status varied by Black/white race. Methods: Participants included 2755 older adults without dementia from the ACTIVE study. Comprehensive neuropsychological criteria were used to classify cognitively normal, aMCI, and naMCI. VRFs were primarily defined using subjective report and medication data. Multinomial logistic regression was run predicting MCI subtype. Results: Greater overall VRF burden, high cholesterol, and obesity evinced greater odds of naMCI in Black participants than whites. Across participants, diabetes and hypertension were associated with increased odds of aMCI and naMCI, respectively. Discussion: Results may reflect known systemic inequities on dimensions of social determinants of health for Black older adults. Continued efforts toward examining underlying mechanisms contributing to these findings are critical.
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Affiliation(s)
- Lindsay J. Rotblatt
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL
| | | | - Michael Marsiske
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL
| | - Ann L. Horgas
- Department of Biobehavioral Nursing Science, University of Florida, Gainesville, FL
| | - Kelsey R. Thomas
- Veterans Affairs San Diego Healthcare System, San Diego, CA
- Department of Psychiatry, University of California San Diego, La Jolla, CA
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13
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Wang J, Zhou F, Xiong CE, Wang GP, Chen LW, Zhang YT, Qi SG, Wang ZH, Mei C, Xu YJ, Zhan JB, Cheng J. Serum sirtuin1: a potential blood biomarker for early diagnosis of Alzheimer's disease. Aging (Albany NY) 2023; 15:9464-9478. [PMID: 37742223 PMCID: PMC10564418 DOI: 10.18632/aging.205015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/20/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND Sirtuin 1, a nicotinamide adenine dinucleotide-dependent deacetylase that is highly expressed in the hippocampus and anterior cortex tissues related to Alzheimer's Disease pathology, can cross the blood-brain barrier and is a promising biomarker. METHODS A 1:1:1 case-control study was conducted and serum fasting blood glucose, triglyceride, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, SIRT1, IL-6, Aβ1-42, T-tau and P-tau-181 levels were evaluated in blood samples of 26 patients form the Alzheimer's Disease group, 26 patients form the mild cognitive impairment group, and 26 individuals form the normal control group. Receiver operator characteristic curves were used to evaluate the diagnostic significance. RESULTS Serum SIRT1 level was significantly down-regulated in the mild cognitive impairment patients and Alzheimer's Disease patients compared with that in the normal control group (P<0.05). ROC curve analysis demonstrated that SIRT1 was a promising biomarker to distinguish Alzheimer's Disease patients from the mild cognitive impairment patients and the normal control group. In addition, SIRT1 was estimated to perform well in the diagnosis of Alzheimer's Disease ([AUC] = 0.742). CONCLUSIONS In summary, the present study suggested that serum SIRT1 might be an early promising diagnostic biomarker for Alzheimer's Disease.
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Affiliation(s)
- Jia Wang
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
| | - Fang Zhou
- Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, Hubei, China
| | - Chang-E Xiong
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
| | - Gui-Ping Wang
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
| | - Lin-Wanyue Chen
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
| | - Yu-Tong Zhang
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Shi-Ge Qi
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zhi-Hui Wang
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Can Mei
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
| | - Yu-Jia Xu
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
| | - Jian-Bo Zhan
- Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, Hubei, China
| | - Jing Cheng
- School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
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14
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Rao G, Gao H, Wang X, Zhang J, Ye M, Rao L. MRI measurements of brain hippocampus volume in relation to mild cognitive impairment and Alzheimer disease: A systematic review and meta-analysis. Medicine (Baltimore) 2023; 102:e34997. [PMID: 37682140 PMCID: PMC10489245 DOI: 10.1097/md.0000000000034997] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/08/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND This is the first meta-analysis conducted to compare the hippocampal volume measured by magnetic resonance imaging (MRI) in healthy normal subjects, mild cognitive impairment (MCI) and Alzheimer disease (AD), and to analyze the relationship between hippocampal volume changes and MCI and AD. METHODS English literatures published from January 2004 to December 2006 were extracted from PubMed, Embase, Wanfang Medical, and China National Knowledge Infrastructure databases. Statistical analysis was carried out with Stata/SE 16.0 software. RESULTS The smaller the volume of the hippocampus measured by MRI, the more severe the cognitive impairment or AD. Different MRI post-measurement correction methods have different measurement results: Left hippocampal volume measured by MRI Raw volume method is negatively correlated with MCI and AD (OR [odds ratio] = 0.58, 95%CI [confidence interval]: 0.42, 0.75) right hippocampal volume measured was not associated with MCI OR AD (OR = 0.87, 95%CI: 0.56, 1.18); left hippocampal volume measured by MRI total intracranial volume (TIV) Correction was not associated with MCI and AD (OR = 0.90, 95%CI: 0.62, 1.19), measured right hippocampal volume was not associated with MCI OR AD (OR = 0.81, 95%CI: 0.49, 1.12); left hippocampal volume measured by MRI TIV Correction was not associated with MCI and AD (OR = 0.90, 95%CI: 0.62, 1.19), measured right hippocampus volume was negatively associated with MCI and AD (OR = 0.49, 95%CI: 0.35, 0.62). CONCLUSION The shrinkage of hippocampus volume is closely related to MCI and AD. MRI measurement of hippocampus volume is not only an auxiliary diagnostic tool for MCI and AD, but also a good prognosis assessment tool.
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Affiliation(s)
- Gaofeng Rao
- Department of Rehabilitation, Taizhou Integrated Chinese and West Medicine Hospital, Taizhou, Zhejiang, China
| | - Hui Gao
- Department of Neurology, Taizhou Integrated Chinese and West Medicine Hospital, Taizhou, Zhejiang, China
| | - Xiaoyang Wang
- Department of Rehabilitation, Taizhou Integrated Chinese and West Medicine Hospital, Taizhou, Zhejiang, China
| | - Jinchao Zhang
- Department of Rehabilitation, Taizhou Integrated Chinese and West Medicine Hospital, Taizhou, Zhejiang, China
| | - Miaoqing Ye
- Department of Rehabilitation, Taizhou Integrated Chinese and West Medicine Hospital, Taizhou, Zhejiang, China
| | - Liyuan Rao
- Department of Gynecology, Jinxi Maternal and Child Family Planning Service Center, Fuzhou, Jiangxi, China
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15
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Semadhi MP, Mulyaty D, Halimah E, Levita J. Healthy mitochondrial DNA in balanced mitochondrial dynamics: A potential marker for neuro‑aging prediction (Review). Biomed Rep 2023; 19:64. [PMID: 37614983 PMCID: PMC10442761 DOI: 10.3892/br.2023.1646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 05/15/2023] [Indexed: 08/25/2023] Open
Abstract
The mitochondrial genome or mitochondrial DNA (mtDNA) is released as a response to cellular stress. In mitochondrial biogenesis, active communication between the mitochondria genome and nucleus is associated with the mtDNA profile that affects the mitochondrial quality. The present review aimed to assess the molecular mechanism and potential roles of mitochondria in neuro-aging, including the importance of evaluating the health status of mtDNA via mitochondrial dynamics. The normal condition of mitochondria, defined as mitochondrial dynamics, includes persistent changes in morphology due to fission and fusion events and autophagy-mitophagy in the mitochondrial quality control process. The calculated copy number of mtDNA in the mitochondria genome represents cellular health, which can be affected by a long-term imbalance between the production and accumulation of reactive oxygen species in the neuroendocrine system, which leads to an abnormal function of mitochondria and mtDNA damage. Mitochondria health is a new approach to discovering a potential indicator for the health status of the nervous system and several types of neurodegenerative disorders. Mitochondrial dynamics is a key contributor to predicting neuro-aging development, which affects the self-renewal and differentiation of neurons in cell metabolism. Neuro-aging is associated with uncontrolled mitochondrial dynamics, which generates age-associated diseases via various mechanisms and signaling routes that lead to the mtDNA damage that has been associated with neurodegeneration. Future studies on the strategic positioning of mtDNA health profile are needed to detect early neurodegenerative disorders.
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Affiliation(s)
- Made Putra Semadhi
- Prodia National Reference Laboratory, Jakarta 10430, Indonesia
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Dewi Mulyaty
- Prodia Widyahusada Co., Jakarta 10430, Indonesia
| | - Eli Halimah
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Jutti Levita
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
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16
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Abramova O, Zorkina Y, Ushakova V, Gryadunov D, Ikonnikova A, Fedoseeva E, Emelyanova M, Ochneva A, Morozova I, Pavlov K, Syunyakov T, Andryushchenko A, Savilov V, Kurmishev M, Andreuyk D, Shport S, Gurina O, Chekhonin V, Kostyuk G, Morozova A. Alteration of Blood Immune Biomarkers in MCI Patients with Different APOE Genotypes after Cognitive Training: A 1 Year Follow-Up Cohort Study. Int J Mol Sci 2023; 24:13395. [PMID: 37686198 PMCID: PMC10488004 DOI: 10.3390/ijms241713395] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Many studies aim to detect the early phase of dementia. One of the major ways to achieve this is to identify corresponding biomarkers, particularly immune blood biomarkers. The objective of this study was to identify such biomarkers in patients with mild cognitive impairment (MCI) in an experiment that included cognitive training. A group of patients with MCI diagnoses over the age of 65 participated in the study (n = 136). Measurements of cognitive functions (using the Mini-Mental State Examination scale and Montreal Cognitive Assessment) and determination of 27 serum biomarkers were performed twice: on the first visit and on the second visit, one year after the cognitive training. APOE genotypes were also determined. Concentrations of EGF (F = 17; p = 0.00007), Eotaxin (F = 7.17; p = 0.008), GRO (F = 13.42; p = 0.0004), IL-8 (F = 8.16; p = 0.005), MCP-1 (F = 13.46; p = 0.0001) and MDC (F = 5.93; p = 0.016) increased after the cognitive training in MCI patients. All these parameters except IL-8 demonstrated a weak correlation with other immune parameters and were poorly represented in the principal component analysis. Differences in concentrations of IP-10, FGF-2, TGFa and VEGF in patients with MCI were associated with APOE genotype. Therefore, the study identified several immune blood biomarkers that could potentially be associated with changes in cognitive function.
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Affiliation(s)
- Olga Abramova
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Yana Zorkina
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Valeriya Ushakova
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
- Biological Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Dmitry Gryadunov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anna Ikonnikova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Elena Fedoseeva
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Marina Emelyanova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Aleksandra Ochneva
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Irina Morozova
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
| | - Konstantin Pavlov
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Timur Syunyakov
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- International Centre for Education and Research in Neuropsychiatry (ICERN), Samara State Medical University, 443016 Samara, Russia
| | - Alisa Andryushchenko
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
| | - Victor Savilov
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
| | - Marat Kurmishev
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
| | - Denis Andreuyk
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Biological Faculty, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Svetlana Shport
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Olga Gurina
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
| | - Vladimir Chekhonin
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
- Department of Medical Nanobiotechnology, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Georgy Kostyuk
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Department of Psychiatry, Federal State Budgetary Educational Institution of Higher Education “Moscow State University of Food Production”, Volokolamskoye Highway 11, 125080 Moscow, Russia
| | - Anna Morozova
- Mental-Health Clinic No. 1 Named after N.A. Alekseev, Zagorodnoe Highway 2, 115191 Moscow, Russia; (O.A.); (Y.Z.); (V.U.); (A.O.); (I.M.)
- Department of Basic and Applied Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology, Kropotkinsky per. 23, 119034 Moscow, Russia
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Fu X, Qin M, Liu X, Cheng L, Zhang L, Zhang X, Lei Y, Zhou Q, Sun P, Lin L, Su Y, Wang J. Decreased GABA levels of the anterior and posterior cingulate cortex are associated with executive dysfunction in mild cognitive impairment. Front Neurosci 2023; 17:1220122. [PMID: 37638325 PMCID: PMC10450953 DOI: 10.3389/fnins.2023.1220122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023] Open
Abstract
Background and purpose Executive function impairment, a slight but noticeable cognitive deficit in mild cognitive impairment (MCI) patients, is influenced by gamma-aminobutyric acid (GABA) levels. Reduced cognitive function is accompanied by thinning of the cerebral cortex, which has higher GABA levels than white matter. However, the relationships among GABA levels, cortical thickness, and executive function in MCI patients have not yet been elucidated. We investigated the relationships among GABA levels, cortical thickness, and executive function in MCI patients. Methods In this study, a total of 36 MCI patients and 36 sex-, age-, and education-matched healthy controls (HC) were recruited. But 33 MCI patients and 35 HC were included because of head motion or poor data quality for three MCI patients and one HC. The levels of gamma-aminobutyric acid plus relative to creatine (GABA+/Cr) and glutamate-glutamine relative to creatine (Glx/Cr) in the anterior cingulate cortex (ACC) and posterior cingulate cortex (PCC) were measured using the Meshcher-Garwood point resolved spectroscopy (MEGA-PRESS) sequence. Metabolite ratios, cortical thickness, and executive function and their interrelationships were determined in the MCI and HC groups. Results Patients with MCI showed lower GABA+/Cr levels in the ACC and PCC. Combined levels of GABA+ and Glx in the ACC and GABA+ in the PCC showed good diagnostic efficacy for MCI (AUC: 0.82). But no differences in cortical thickness were found between the two groups. In the MCI group, lower GABA+/Cr level was correlated to worse performance on the digit span test backward, and the shape trail test-B. The cortical thickness was not associated with GABA+ levels and executive function in patients. Conclusion These results implied that decreased GABA levels in the ACC and PCC had a critical role in the early diagnosis of impaired executive function of MCI. Therefore, GABA in the ACC and PCC could be a potential diagnostic marker of the executive function decline of MCI.
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Affiliation(s)
- Xiaona Fu
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Mengting Qin
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoming Liu
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Lan Cheng
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Lan Zhang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Xinli Zhang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yu Lei
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Qidong Zhou
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Sun
- Clinical & Technical Solutions, Philips Healthcare, Beijing, China
| | - Liangjie Lin
- Clinical & Technical Solutions, Philips Healthcare, Beijing, China
| | - Ying Su
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Wang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
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18
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Hatayama K, Ebara A, Okuma K, Tokuno H, Hasuko K, Masuyama H, Ashikari I, Shirasawa T. Characteristics of Intestinal Microbiota in Japanese Patients with Mild Cognitive Impairment and a Risk-Estimating Method for the Disorder. Biomedicines 2023; 11:1789. [PMID: 37509429 PMCID: PMC10376419 DOI: 10.3390/biomedicines11071789] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Intestinal microbiota may play a significant role in the development and progression of mild cognitive impairment (MCI). In addition, sex differences in the prevalence of MCI and intestinal microbiota are likely to exist. Therefore, this study investigated the association between MCI and intestinal microbiota by comparing Japanese patients in their 70s with MCI (11 males and 18 females) and disease-free controls (17 males and 23 females), taking sex into account. In both sexes, Clostridium_XVIII, Eggerthella, Erysipelatoclostridium, Flavonifractor, and Ruminococcus 2 were the more abundant taxa in the MCI group, whereas Megasphaera, Oscillibacter, Prevotella, Roseburia, and Victivallis were less abundant. Based on these characteristics, it was hypothesized that the composition of the intestinal microbiota in the MCI group leads to dysregulation of the intestinal microbiota, increased intestinal and blood-brain barrier permeability, and increased chronic neuroinflammation, with the long-term persistence of these abnormalities ultimately leading to cognitive decline. Furthermore, risk estimation models for MCI based on intestinal microbiota data were developed using structural equation modeling. These tests discriminated between the MCI and control groups. Incorporating these factors into intestinal microbiota testing using stool samples may be an efficient method to screen individuals with MCI.
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Affiliation(s)
| | - Aya Ebara
- Symbiosis Solutions Inc., Tokyo 101-0064, Japan
| | - Kana Okuma
- Symbiosis Solutions Inc., Tokyo 101-0064, Japan
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19
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Gaitsch H, Franklin RJM, Reich DS. Cell-free DNA-based liquid biopsies in neurology. Brain 2023; 146:1758-1774. [PMID: 36408894 PMCID: PMC10151188 DOI: 10.1093/brain/awac438] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/26/2022] [Accepted: 11/10/2022] [Indexed: 11/22/2022] Open
Abstract
This article reviews recent developments in the application of cell-free DNA-based liquid biopsies to neurological diseases. Over the past few decades, an explosion of interest in the use of accessible biofluids to identify and track molecular disease has revolutionized the fields of oncology, prenatal medicine and others. More recently, technological advances in signal detection have allowed for informative analysis of biofluids that are typically sparse in cells and other circulating components, such as CSF. In parallel, advancements in epigenetic profiling have allowed for novel applications of liquid biopsies to diseases without characteristic mutational profiles, including many degenerative, autoimmune, inflammatory, ischaemic and infectious disorders. These events have paved the way for a wide array of neurological conditions to benefit from enhanced diagnostic, prognostic, and treatment abilities through the use of liquid biomarkers: a 'liquid biopsy' approach. This review includes an overview of types of liquid biopsy targets with a focus on circulating cell-free DNA, methods used to identify and probe potential liquid biomarkers, and recent applications of such biomarkers to a variety of complex neurological conditions including CNS tumours, stroke, traumatic brain injury, Alzheimer's disease, epilepsy, multiple sclerosis and neuroinfectious disease. Finally, the challenges of translating liquid biopsies to use in clinical neurology settings-and the opportunities for improvement in disease management that such translation may provide-are discussed.
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Affiliation(s)
- Hallie Gaitsch
- NIH-Oxford-Cambridge Scholars Program, Wellcome-MRC Cambridge Stem Cell Institute and Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 1TN, UK
| | | | - Daniel S Reich
- Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
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20
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Zhang Q, Huang S, Cao Y, Dong G, Chen Y, Zhu X, Yun W, Zhang M. Remnant cholesterol and mild cognitive impairment: A cross-sectional study. Front Aging Neurosci 2023; 15:1069076. [PMID: 37009458 PMCID: PMC10057110 DOI: 10.3389/fnagi.2023.1069076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 02/23/2023] [Indexed: 03/17/2023] Open
Abstract
ObjectiveEmerging evidence suggests that elevated remnant cholesterol (RC) correlates with several health conditions. To explore the association of plasma RC with MCI incidence and the relationship between plasma RC and different domains of cognition in MCI patients.MethodsThirty-six MCI patients and 38 cognitively healthy controls (HC) were enrolled in the present cross-sectional study. Using total cholesterol (TC) minus high-density lipoprotein cholesterol (HDL-C) minus low-density lipoprotein cholesterol (LDL-C) as the formula for calculating fasting RC. Cognition was assessed using the Chinese version of the Montreal cognitive assessment (MoCA), Auditory Verbal Learning Test (AVLT), Digit Symbol Substitution Test (DSST), Trail Making Test (TMT), and Rey-Osterrieth Complex Figure Test (ROCF).ResultsCompared to healthy controls, MCI patients had a higher level of RC, the median difference in RC levels between these two groups was 8.13 mg/dl (95.0%CI: 0.97–16.1). Concurrently, plasma RC level was positively associated with MCI risk (OR = 1.05, 95%CI: 1.01–1.10). Notably, elevated RC level was correlated with impaired cognition in MCI patients, such as DSST (pr = −0.45, p = 0.008), ROCF- Long Delayed Recall (pr = −0.45, p = 0.008), AVLT-Immediate Recall (pr = −0.38, p = 0.028), and TMT-A (pr = 0.44, p = 0.009). Conversely, no significant correlation was found between RC and the AVLT-Long Delayed Recall test.ConclusionThis study found that plasma remnant cholesterol was associated with MCI. Further large longitudinal studies are needed in the future to confirm the results and clarify the cause-and-effect relationship.
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Affiliation(s)
- Qiaoyang Zhang
- Department of Psychology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Shan Huang
- Department of Neurology, General Hospital of Northern Theatre Command, Shenyang, China
| | - Yin Cao
- Department of Psychology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Guanzhong Dong
- Department of Psychology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Yun Chen
- Department of Neurology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Xuanyan Zhu
- Department of Neurology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Wenwei Yun
- Department of Neurology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
- Wenwei Yun,
| | - Min Zhang
- Department of Neurology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
- *Correspondence: Min Zhang,
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21
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Emrani S, Lamar M, Price CC, Swenson R, Libon DJ, Baliga G. Neurocognitive Operations Underlying Working Memory Abilities: An Analysis of Latency and Time-Based Parameters. J Alzheimers Dis 2023; 94:1535-1547. [PMID: 37458036 PMCID: PMC11389823 DOI: 10.3233/jad-230288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
BACKGROUND The theory of executive attention (Fuster, 2015) suggests considerable plasticity regarding when specific neurocognitive operations are recruited to bring executive tasks to fruition. OBJECTIVE We tested the hypothesis that differing neurocognitive operations are recruited upon the initiation of a response, but that other distinct neurocognitive operations are recruited towards the middle or end of a response. METHODS The Backward Digit Span Test (BDST) was administered to 58 memory clinic patients (MCI, n = 22; no-MCI, n = 36). Latency to generate all correct 5-span responses was obtained. Statistical analyses found that optimal group classification was achieved using the first and third digit backward. First and third response latencies were analyzed in relation to verbal working memory (WM), visual WM, processing speed, visuospatial operations, naming/lexical access, and verbal episodic memory tests. RESULTS For the first response, slower latencies were associated with better performance in relation to verbal WM and visuospatial test performance. For the third response, faster latencies were associated with better processing speed and visuospatial test performance. CONCLUSION Consistent with the theory of executive attention, these data show that the neurocognitive operations underlying successful executive test performance are not monolithic but can be quite nuanced with differing neurocognitive operations associated with specific time epochs. Results support the efficacy of obtaining time-based latency parameters to help disambiguate successful executive neurocognitive operations in memory clinic patients.
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Affiliation(s)
- Sheina Emrani
- Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA
| | - Melissa Lamar
- Rush Alzheimer's Disease Center and the Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA
| | - Catherine C Price
- Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA
| | - Rod Swenson
- Department of Psychiatry and Behavioral Science at the University of North Dakota, School of Medicine and Health Sciences, Grand Forks, ND, USA
| | - David J Libon
- New Jersey Institute for Successful Aging, School of Osteopathic Medicine and the Department of Psychology, Rowan University, Stratford, NJ, USA
| | - Ganesh Baliga
- Department of Computer Science, Rowan University, Glassboro, NJ, USA
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22
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Hashemi A, Leonovych O, Jiménez EC, Sierra-Marcos A, Romeo A, Valenzuala PB, Puig MS, Moliner JL, Tubau E, Supèr H. Classification of MCI patients using vergence eye movements and pupil responses obtained during a visual oddball test. AGING AND HEALTH RESEARCH 2023. [DOI: 10.1016/j.ahr.2023.100121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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23
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Chauhan S, Behl T, Sehgal A, Singh S, Sharma N, Gupta S, Albratty M, Najmi A, Meraya AM, Alhazmi HA. Understanding the Intricate Role of Exosomes in Pathogenesis of Alzheimer's Disease. Neurotox Res 2022; 40:1758-1773. [PMID: 36564606 DOI: 10.1007/s12640-022-00621-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/25/2022]
Abstract
Alzheimer's disease causes loss of memory and deterioration of mental abilities is utmost predominant neurodegenerative disease accounting 70-80% cases of dementia. The appearance of plaques of amyloid-β and neurofibrillary tangles in the brain post-mortems of Alzheimer's patients established them as key participants in the etiology of Alzheimer's disease. Exosomes exist as extracellular vesicles of nano-size which are present throughout the body. Exosomes are known to spread toxic hyperphosphorylated tau and amyloid-β between the cells and are linked to the loss of neurons by inducing apoptosis. Exosomes have progressed from cell trashcans to multifunctional organelles which are involved in various functions like internalisation and transmission of macromolecules such as lipids, proteins, and nucleic acids. This review covers current findings on relationship of exosomes in biogenesis and angiogenesis of Alzheimer's disease and functions of exosomes in the etiology of AD. Furthermore, the roles of exosomes in development, diagnosis, treatment, and its importance as therapeutic targets and biomarkers for Alzheimer's disease have also been highlighted.
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Affiliation(s)
- Simran Chauhan
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India
| | - Tapan Behl
- School of Health Sciences, University of Petroleum and Energy Studies, Uttarakhand, Dehradun, 248007, India.
| | - Aayush Sehgal
- GHG Khalsa College of Pharmacy, Sadhar, Ludhiana, Punjab, Gurusar, 141104, India
| | - Sukhbir Singh
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Haryana, Mullana-Ambala, 133207, India.
| | - Neelam Sharma
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Haryana, Mullana-Ambala, 133207, India
| | - Sumeet Gupta
- Department of Pharmacology, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Haryana, Mullana-Ambala, 133207, India
| | - Mohammed Albratty
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Asim Najmi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan, 45142, Saudi Arabia
| | - Abdulkarim M Meraya
- Pharmacy Practice Research Unit, Department of Clinical Pharmacy, Jazan Uniersity, Jazan, 45124, Saudi Arabia
| | - Hassan A Alhazmi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jzan University, Jazan, 45142, Saudi Arabia
- Substance Abuse and Toxicology Research Centre, Jzan University, Jazan, 45142, Saudi Arabia
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24
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Reyes CDG, Hakim MA, Atashi M, Goli M, Gautam S, Wang J, Bennett AI, Zhu J, Lubman DM, Mechref Y. LC-MS/MS Isomeric Profiling of N-Glycans Derived from Low-Abundant Serum Glycoproteins in Mild Cognitive Impairment Patients. Biomolecules 2022; 12:1657. [PMID: 36359007 PMCID: PMC9687829 DOI: 10.3390/biom12111657] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 09/29/2023] Open
Abstract
Mild cognitive impairment (MCI) is an early stage of memory loss that affects cognitive abilities, such as language or virtual/spatial comprehension. This cognitive decline is mostly observed with the aging of individuals. Recently, MCI has been considered as a prodromal phase of Alzheimer's disease (AD), with a 10-15% conversion rate. However, the existing diagnostic methods fail to provide precise and well-timed diagnoses, and the pathophysiology of MCI is not fully understood. Alterations of serum N-glycan expression could represent essential contributors to the overall pathophysiology of neurodegenerative diseases and be used as a potential marker to assess MCI diagnosis using non-invasive procedures. Herein, we undertook an LC-MS/MS glycomics approach to determine and characterize potential N-glycan markers in depleted blood serum samples from MCI patients. For the first time, we profiled the isomeric glycome of the low abundant serum glycoproteins extracted from serum samples of control and MCI patients using an LC-MS/MS analytical strategy. Additionally, the MRM validation of the identified data showed five isomeric N-glycans with the ability to discriminate between healthy and MCI patients: the sialylated N-glycans GlcNAc5,Hex6,Neu5Ac3 and GlcNAc6,Hex7,Neu5Ac4 with single AUCs of 0.92 and 0.87, respectively, and a combined AUC of 0.96; and the sialylated-fucosylated N-glycans GlcNAc4,Hex5,Fuc,Neu5Ac, GlcNAc5,Hex6,Fuc,Neu5Ac2, and GlcNAc6,Hex7,Fuc,Neu5Ac3 with single AUCs of 0.94, 0.67, and 0.88, respectively, and a combined AUC of 0.98. According to the ingenuity pathway analysis (IPA) and in line with recent publications, the identified N-glycans may play an important role in neuroinflammation. It is a process that plays a fundamental role in neuroinflammation, an important process in the progression of neurodegenerative diseases.
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Affiliation(s)
| | - Md. Abdul Hakim
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Mojgan Atashi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Mona Goli
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Sakshi Gautam
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Junyao Wang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Andrew I. Bennett
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Jianhui Zhu
- Department of Surgery, The University of Michigan, Ann Arbor, MI 48109, USA
| | - David M. Lubman
- Department of Surgery, The University of Michigan, Ann Arbor, MI 48109, USA
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
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25
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Comfort N, Wu H, De Hoff P, Vuppala A, Vokonas PS, Spiro A, Weisskopf M, Coull BA, Laurent LC, Baccarelli AA, Schwartz J. Extracellular microRNA and cognitive function in a prospective cohort of older men: The Veterans Affairs Normative Aging Study. Aging (Albany NY) 2022; 14:6859-6886. [PMID: 36069796 PMCID: PMC9512498 DOI: 10.18632/aging.204268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 08/17/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Aging-related cognitive decline is an early symptom of Alzheimer's disease and other dementias, and on its own can have substantial consequences on an individual's ability to perform important everyday functions. Despite increasing interest in the potential roles of extracellular microRNAs (miRNAs) in central nervous system (CNS) pathologies, there has been little research on extracellular miRNAs in early stages of cognitive decline. We leverage the longitudinal Normative Aging Study (NAS) cohort to investigate associations between plasma miRNAs and cognitive function among cognitively normal men. METHODS This study includes data from up to 530 NAS participants (median age: 71.0 years) collected from 1996 to 2013, with a total of 1,331 person-visits (equal to 2,471 years of follow up). Global cognitive function was assessed using the Mini-Mental State Examination (MMSE). Plasma miRNAs were profiled using small RNA sequencing. Associations of expression of 381 miRNAs with current cognitive function and rate of change in cognitive function were assessed using linear regression (N = 457) and linear mixed models (N = 530), respectively. RESULTS In adjusted models, levels of 2 plasma miRNAs were associated with higher MMSE scores (p < 0.05). Expression of 33 plasma miRNAs was associated with rate of change in MMSE scores over time (p < 0.05). Enriched KEGG pathways for miRNAs associated with concurrent MMSE and MMSE trajectory included Hippo signaling and extracellular matrix-receptor interactions. Gene targets of miRNAs associated with MMSE trajectory were additionally associated with prion diseases and fatty acid biosynthesis. CONCLUSIONS Circulating miRNAs were associated with both cross-sectional cognitive function and rate of change in cognitive function among cognitively normal men. Further research is needed to elucidate the potential functions of these miRNAs in the CNS and investigate relationships with other neurological outcomes.
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Affiliation(s)
- Nicole Comfort
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY 10032, USA
| | - Haotian Wu
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY 10032, USA
| | - Peter De Hoff
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Aishwarya Vuppala
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Pantel S. Vokonas
- VA Normative Aging Study, VA Boston Healthcare System, Boston, MA 02130, USA
- Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA
| | - Avron Spiro
- Massachusetts Veterans Epidemiology and Research Information Center, VA Boston Healthcare System, Boston, MA 02130, USA
- Department of Epidemiology, Boston University School of Public Health, Boston, MA 02118, USA
- Department of Psychiatry, Boston University School of Medicine, Boston, MA 02118, USA
| | - Marc Weisskopf
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA 02115, USA
| | - Brent A. Coull
- Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA 02115, USA
| | - Louise C. Laurent
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Andrea A. Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY 10032, USA
| | - Joel Schwartz
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA 02115, USA
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26
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Ribeiro FS, Teixeira-Santos AC, Leist AK. The prevalence of mild cognitive impairment in Latin America and the Caribbean: a systematic review and meta-analysis. Aging Ment Health 2022; 26:1710-1720. [PMID: 34844480 PMCID: PMC9466284 DOI: 10.1080/13607863.2021.2003297] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 10/31/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVES The population of Latin America and Caribbean (LAC) is ageing rapidly, presenting the highest prevalence rates of dementia in the world. Mild cognitive impairment (MCI) is an intermediate condition between normal ageing, Alzheimer's disease, and related dementias. We conducted a systematic review to evaluate the prevalence of MCI in LAC countries and explore factors associated with MCI (i.e. age, sex/gender, and education). METHOD A database search was conducted in September 2020 using PubMed, Web of Science, Scopus, Lilacs, SciELO, EMBASE, and medRxiv for population- or community-based studies, published in English, Spanish, or Portuguese. RESULTS From 2,155 screened studies, we selected reports including subjects with a precise diagnosis of MCI. A total of 11 studies met the inclusion criteria, adding up to 20,220 participants in nine countries: Brazil, Mexico, Argentina, Colombia, Peru, Cuba, Dominican Republic, Venezuela, and Costa Rica. Estimates for all-type MCI prevalence ranged from 6.8% to 25.5% and amnestic MCI between 3.1% and 10.5%. Estimates differed by age and education, with oldest and lower-educated adults presenting higher MCI prevalence. CONCLUSION This first systematic review of the prevalence of MCI discusses the population strata with the highest potential to benefit from dementia risk reduction interventions in LAC countries.
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Affiliation(s)
- Fabiana Silva Ribeiro
- Department of Social Sciences, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | | | - Anja K. Leist
- Department of Social Sciences, University of Luxembourg, Esch-sur-Alzette, Luxembourg
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27
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De Amicis R, Mambrini SP, Pellizzari M, Foppiani A, Bertoli S, Battezzati A, Leone A. Systematic Review on the Potential Effect of Berry Intake in the Cognitive Functions of Healthy People. Nutrients 2022; 14:nu14142977. [PMID: 35889934 PMCID: PMC9321916 DOI: 10.3390/nu14142977] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/15/2022] [Accepted: 07/17/2022] [Indexed: 02/06/2023] Open
Abstract
The increase in life expectancy poses health challenges, such as increasing the impairment of cognitive functions. Berries show a neuroprotective effect thanks to flavonoids, able to reduce neuroinflammatory and to increase neuronal connections. The aim of this systematic review is to explore the impact of berries supplementation on cognitive function in healthy adults and the elderly. Twelve studies were included for a total of 399 participants, aged 18–81 years (mean age: 41.8 ± 4.7 years). Six studies involved young adults (23.9 ± 3.7 years), and four studies involved the elderly (60.6 ± 6.4 years). Most studies investigated effects of a single berry product, but one used a mixture of 4 berries. Non-significant differences were detected across cognition domains and methodologies, but significant and positive effects were found for all cognitive domains (attention and concentration, executive functioning, memory, motor skills and construction, and processing speed), and in most cases they were present in more than one study and detected using different methodologies. Although some limitations should be taken into account to explain these results, the positive findings across studies and methodologies elicit further studies on this topic, to endorse the consumption of berries in healthy populations to prevent cognitive decline.
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Affiliation(s)
- Ramona De Amicis
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (S.P.M.); (M.P.); (A.F.); (S.B.); (A.B.); (A.L.)
- Laboratory of Nutrition and Obesity Research, Department of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, 20145 Milan, Italy
- Correspondence:
| | - Sara Paola Mambrini
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (S.P.M.); (M.P.); (A.F.); (S.B.); (A.B.); (A.L.)
- Laboratory of Metabolic Research, S. Giuseppe Hospital, IRCCS, Istituto Auxologico Italiano, 28824 Piancavallo, Italy
| | - Marta Pellizzari
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (S.P.M.); (M.P.); (A.F.); (S.B.); (A.B.); (A.L.)
| | - Andrea Foppiani
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (S.P.M.); (M.P.); (A.F.); (S.B.); (A.B.); (A.L.)
| | - Simona Bertoli
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (S.P.M.); (M.P.); (A.F.); (S.B.); (A.B.); (A.L.)
- Laboratory of Nutrition and Obesity Research, Department of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, 20145 Milan, Italy
| | - Alberto Battezzati
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (S.P.M.); (M.P.); (A.F.); (S.B.); (A.B.); (A.L.)
| | - Alessandro Leone
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (S.P.M.); (M.P.); (A.F.); (S.B.); (A.B.); (A.L.)
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From Subjective Cognitive Decline to Mild Cognitive Impairment to Dementia: Clinical and Capacity Assessment Considerations. PSYCHOLOGICAL INJURY & LAW 2022. [DOI: 10.1007/s12207-022-09456-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hartle L, Martorelli M, Balboni G, Souza R, Charchat-Fichman H. Diagnostic accuracy of CompCog: reaction time as a screening measure for mild cognitive impairment. ARQUIVOS DE NEURO-PSIQUIATRIA 2022; 80:570-579. [PMID: 35946705 PMCID: PMC9387195 DOI: 10.1590/0004-282x-anp-2021-0099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 08/23/2021] [Accepted: 08/31/2021] [Indexed: 06/15/2023]
Abstract
BACKGROUND Reaction time is affected under different neurological conditions but has not been much investigated considering all types of mild cognitive impairment (MCI). OBJECTIVE This study investigated the diagnostic accuracy of CompCog, a computerized cognitive screening battery focusing on reaction time measurements. METHODS A sample of 52 older adults underwent neuropsychological assessments, including CompCog, and medical appointments, to be classified as a control group or be diagnosed with MCI. The accuracy of CompCog for distinguishing between the two groups was calculated. RESULTS The results from diagnostic accuracy analyses showed that the AUCs of ROC curves were as high as 0.915 (CI 0.837-0.993). The subtest with the highest sensitivity and specificity (choice reaction time subtest) had 91.7% sensitivity and 89.3% specificity. The logistic regression final model correctly classified 92.3% of individuals, with 92.9% specificity and 91.7% sensitivity, and included only four variables from different subtests. CONCLUSIONS In summary, the study showed that reaction time assessed through CompCog is a good screening measure to differentiate between normal aging and MCI. Reaction time measurements in milliseconds were more accurate than correct answers. This test can form part of routine clinical tests to achieve the objectives of screening for MCI, indicating further procedures for investigation and diagnosis and planning interventions.
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Affiliation(s)
- Larissa Hartle
- Pontifícia Universidade Católica do Rio de Janeiro, Departamento de Psicologia, Rio de Janeiro RJ, Brazil
- Università degli Studi di Perugia, Dipartimento di Filosofia, scienze sociali, umane e della formazione, Perugia, Italia
| | - Marina Martorelli
- Pontifícia Universidade Católica do Rio de Janeiro, Departamento de Psicologia, Rio de Janeiro RJ, Brazil
| | - Giulia Balboni
- Università degli Studi di Perugia, Dipartimento di Filosofia, scienze sociali, umane e della formazione, Perugia, Italia
| | - Raquel Souza
- Pontifícia Universidade Católica do Rio de Janeiro, Departamento de Psicologia, Rio de Janeiro RJ, Brazil
| | - Helenice Charchat-Fichman
- Pontifícia Universidade Católica do Rio de Janeiro, Departamento de Psicologia, Rio de Janeiro RJ, Brazil
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Xie Q, Ni M, Gao F, Dai LB, Lv XY, Zhang YF, Shi Q, Zhu XX, Xie JK, Shen Y, Wang SC. Correlation between Cerebrospinal Fluid Core Alzheimer's Disease Biomarkers and β-Amyloid PET in Chinese Dementia Population. ACS Chem Neurosci 2022; 13:1558-1565. [PMID: 35476397 DOI: 10.1021/acschemneuro.2c00120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The current diagnoses of Alzheimer's disease (AD) mainly rely on such measures as amyloid-β (Aβ) and tau neuropathology biomarkers in vivo via cerebrospinal fluid (CSF) and positron emission tomography (PET) imaging, which had been systematically studied in Caucasian individuals, whereas diagnostic performances of these approaches in Chinese dementia population still remain unclear. This study investigated the associations between the levels of CSF core AD biomarkers, including phosphorylated tau (p-Tau181), total tau (t-Tau), Aβ42, and Aβ40 measured by the single-molecule array (Simoa) and cerebral Aβ deposition status assessed by 18F-Florbetapir PET (Aβ PET), and evaluated the predictive values of CSF core AD biomarkers in discriminating Aβ PET status in a clinical dementia cohort of the Chinese population, which consisted of patients with mild cognitive impairment (MCI), AD dementia, and non-Alzheimer's dementia disease (Non-ADD). Global standard uptake value ratios (SUVRs) were calculated by Aβ PET, which was divided into positive (Aβ+) and negative (Aβ-) through visual analysis. CSF p-Tau181 and p-Tau181/t-Tau ratio were positively correlated with the global SUVR, while CSF Aβ42 and Aβ42/Aβ40 ratio were negatively correlated with the global SUVR. CSF Aβ40 has the highest predictive value in discriminating the MCI group from the AD group, while CSF p-Tau181 was applied to discriminate the AD group from the non-ADD group. CSF Aβ42/Aβ40 ratio, as the optimal predictive factor, was combined with APOE ε4 status rather than age and education, which could improve the predictive ability in differentiating the Aβ+ group from the Aβ- group. The results reveal the universal applicability of CSF core AD biomarkers and Aβ PET imaging in Chinese dementia population, which is helpful in clinical practice and drug trials in China.
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Affiliation(s)
- Qiang Xie
- Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Ming Ni
- Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Feng Gao
- Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Lin-Bin Dai
- Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Xin-Yi Lv
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Yi-Fan Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Qin Shi
- Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Xing-Xing Zhu
- Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Ji-Kui Xie
- Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Yong Shen
- Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
- Neurodegenerative Disorder Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
- Anhui Province Key Laboratory of Biomedical Aging Research, Hefei 230001, China
| | - Shi-Cun Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
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Ivanova O, Meilán JJG, Martínez-Sánchez F, Martínez-Nicolás I, Llorente TE, González NC. Discriminating speech traits of Alzheimer's disease assessed through a corpus of reading task for Spanish language. COMPUT SPEECH LANG 2022. [DOI: 10.1016/j.csl.2021.101341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wang T, Wang X, Yao Y, Zhao C, Yang C, Han Y, Cai Y. Association of plasma apolipoproteins and levels of inflammation-related factors with different stages of Alzheimer's disease: a cross-sectional study. BMJ Open 2022; 12:e054347. [PMID: 35387811 PMCID: PMC8987762 DOI: 10.1136/bmjopen-2021-054347] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Blood-based biomarkers for the early diagnosis of Alzheimer's disease (AD) are a 'Holy Grail' of AD research. Growing evidence shows that levels of apolipoproteins and various inflammation-related factors are altered in the peripheral blood of patients with AD. The purpose of this study was to clear and definite whether these biomarkers are differentially expressed at the early stages of AD, and could be a biomarker as an early diagnosis of the disease. DESIGN Observation study. SETTING This study was a part of the Sino Longitudinal Study on Cognitive Decline, an ongoing prospective cohort study (ClinicalTrials.gov identifier: NCT03370744) that centres on Xuanwu Hospital (Beijing, China) in cooperation with an alliance of 94 hospitals from 50 cities across China. PARTICIPANTS In the present study, 416 right-handed Chinese Han subjects were recruited through standardised public advertisements from 2014 to 2019. OUTCOME MEASURES Concentrations of plasma apolipoprotein A1, apolipoprotein CIII (ApoCIII), apolipoprotein E (ApoE), A-2-macroglobulin (A2M), complement C3 (C3) and complement factor H (FH) were determined using a commercial multiplex Luminex-based panel in normal controls (NC), subjective cognitive decline (SCD), mild cognitive impairment and AD groups. RESULTS For individual analysis, pairwise comparisons showed that: (1) For SCD versus NC, no biomarker showed significant difference; (2) For amnestic mild cognitive impairment (aMCI) versus NC, levels of ApoCIII, ApoE, A2M, C3 and FH increased significantly; and (3) For AD versus NC, amounts of C3 increased. For models differentiating clinical groups, discriminant analysis was performed by including all protein markers, age, sex, genotype and education level in the model. This approach could distinguish between patients with aMCI (area under the curve (AUC): 0.743) and AD (AUC: 0.837) from NC. CONCLUSION Our results suggest that concentrations of certain apolipoproteins and inflammation-related factors are altered at the early stage of AD, and could be useful biomarkers for early diagnosis. TRIAL REGISTRATION NUMBER NCT03370744.
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Affiliation(s)
- Ting Wang
- Department of Biobank, Xuanwu Hospital of Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Disorders, Beijing, China
| | - Xiaoni Wang
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Yunxia Yao
- Department of Biobank, Xuanwu Hospital of Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Disorders, Beijing, China
| | - Chunsong Zhao
- Department of Biobank, Xuanwu Hospital of Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Disorders, Beijing, China
| | - Caixia Yang
- Department of Biobank, Xuanwu Hospital of Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Disorders, Beijing, China
| | - Ying Han
- National Clinical Research Center for Geriatric Disorders, Beijing, China
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
- Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
| | - Yanning Cai
- Department of Biobank, Xuanwu Hospital of Capital Medical University, Beijing, China
- National Clinical Research Center for Geriatric Disorders, Beijing, China
- Beijing Geriatric Medical Research Center, Beijing, China
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Ge X, Qiao Y, Choi J, Raman R, Ringman JM, Shiand Y. Enhanced Association of Tau Pathology and Cognitive Impairment in Mild Cognitive Impairment Subjects with Behavior Symptoms. J Alzheimers Dis 2022; 87:557-568. [PMID: 35342088 DOI: 10.3233/jad-215555] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Mild cognitive impairment (MCI) individuals with neuropsychiatric symptoms (NPS) are more likely to develop dementia. OBJECTIVE We sought to understand the relationship between neuroimaging markers such as tau pathology and cognitive symptoms both with and without the presence of NPS during the prodromal period of Alzheimer's disease. METHODS A total of 151 MCI subjects with tau positron emission tomographic (PET) scanning with 18F AV-1451, amyloid-β (Aβ) PET scanning with florbetapir or florbetaben, magnetic resonance imaging, and cognitive and behavioral evaluations were selected from the Alzheimer's Disease Neuroimaging Initiative. A 4-group division approach was proposed using amyloid (A-/A+) and behavior (B-/B+) status: A-B-, A-B+, A+B-, and A+B+. Pearson's correlation test was conducted for each group to examine the association between tau deposition and cognitive performance. RESULTS No statistically significant association between tau deposition and cognitive impairment was found for subjects without behavior symptoms in either the A-B-or A+B-groups after correction for false discovery rate. In contrast, tau deposition was found to be significantly associated with cognitive impairment in entorhinal cortex and temporal pole for the A-B+ group and nearly the whole cerebrum for the A+B+ group. CONCLUSION Enhanced associations between tauopathy and cognitive impairment are present in MCI subjects with behavior symptoms, which is more prominent in the presence of elevated amyloid pathology. MCI individuals with NPS may thus be at greater risk for further cognitive decline with the increase of tau deposition in comparison to those without NPS.
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Affiliation(s)
- Xinting Ge
- Laboratory of Neuro Imaging (LONI), Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.,School of Information Science and Engineering, Shandong Normal University, Jinan, Shandong, China.,School of Medical Imaging, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yuchuan Qiao
- Laboratory of Neuro Imaging (LONI), Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jiyoon Choi
- Alzheimer's Therapeutic Research Institute, Keck School of Medicine, University of Southern California, San Diego, CA, USA
| | - Rema Raman
- Alzheimer's Therapeutic Research Institute, Keck School of Medicine, University of Southern California, San Diego, CA, USA
| | - John M Ringman
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Yonggang Shiand
- Laboratory of Neuro Imaging (LONI), Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Effect of acupuncture on cerebral blood flow, serum S100β and ALP in the patients with post-stroke mild cognitive impairment in the convalescence stage. WORLD JOURNAL OF ACUPUNCTURE-MOXIBUSTION 2022. [DOI: 10.1016/j.wjam.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Araki W, Kanemaru K, Hattori K, Tsukamoto T, Saito Y, Yoshida S, Takano H, Sakata M, Yokoi Y, Omachi Y, Nagaoka U, Nagao M, Komori T, Tachimori H, Murayama S, Mizusawa H. Soluble APP-α and APP-β in cerebrospinal fluid as potential biomarkers for differential diagnosis of mild cognitive impairment. Aging Clin Exp Res 2022; 34:341-347. [PMID: 34283410 DOI: 10.1007/s40520-021-01935-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 07/04/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Concentrations of soluble amyloid precursor proteins-α (sAPPα) and -β (sAPPβ) in cerebrospinal fluid (CSF) may reflect the neuropathology of Alzheimer's disease (AD). We previously reported that the concentrations of both sAPPα and sAPPβ were significantly higher in patients with mild cognitive impairment (MCI) due to AD (MCI-AD) than in control subjects without cognitive impairment. The present study analyzed whether these sAPPs are useful in the differential diagnosis of MCI. METHODS A modified and sensitive method was used to analyze concentrations of sAPPα and sAPPβ in CSF of patients with MCI-AD (n = 30) and MCI due to other causes (MCI-others) (n = 24). Phosphorylated tau (p-tau) and amyloid β-protein 42 (Aβ42) were also analyzed using standard methods. RESULTS CSF concentrations of sAPPα and sAPPβ were significantly higher in the MCI-AD than in the MCI-others group (p < 0.001). Furthermore, concentrations of both sAPPα and sAPPβ were highly correlated with the concentration of p-tau, consistent with our previous report. CONCLUSIONS Measurement of both sAPPs in CSF using sensitive methods can be helpful in the precise differential diagnosis of patients with MCI.
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Affiliation(s)
- Wataru Araki
- Department of Demyelinating Disease and Aging, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), 4-1-1 Ogawahigashi, Kodaira, Tokyo, 187-8502, Japan.
| | - Kazutomi Kanemaru
- Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi-ku, Tokyo, Japan
| | | | | | - Yuko Saito
- National Center Hospital, NCNP, Kodaira, Tokyo, Japan
| | | | | | | | - Yuma Yokoi
- National Center Hospital, NCNP, Kodaira, Tokyo, Japan
| | - Yoshie Omachi
- National Center Hospital, NCNP, Kodaira, Tokyo, Japan
| | - Utako Nagaoka
- Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Masahiro Nagao
- Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Takashi Komori
- Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Hisateru Tachimori
- Department of Clinical Epidemiology, Translational Medical Center, NCNP, Kodaira, Tokyo, Japan
| | - Shigeo Murayama
- Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi-ku, Tokyo, Japan
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Decourt B, D’Souza GX, Shi J, Ritter A, Suazo J, Sabbagh MN. The Cause of Alzheimer's Disease: The Theory of Multipathology Convergence to Chronic Neuronal Stress. Aging Dis 2022; 13:37-60. [PMID: 35111361 PMCID: PMC8782548 DOI: 10.14336/ad.2021.0529] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 05/28/2021] [Indexed: 12/18/2022] Open
Abstract
The field of Alzheimer's disease (AD) research critically lacks an all-inclusive etiology theory that would integrate existing hypotheses and explain the heterogeneity of disease trajectory and pathologies observed in each individual patient. Here, we propose a novel comprehensive theory that we named: the multipathology convergence to chronic neuronal stress. Our new theory reconsiders long-standing dogmas advanced by previous incomplete theories. Firstly, while it is undeniable that amyloid beta (Aβ) is involved in AD, in the seminal stage of the disease Aβ is unlikely pathogenic. Instead, we hypothesize that the root cause of AD is neuronal stress in the central nervous system (CNS), and Aβ is expressed as part of the physiological response to protect CNS neurons from stress. If there is no return to homeostasis, then Aβ becomes overexpressed, and this includes the generation of longer forms that are more toxic and prone to oligomerization. Secondly, AD etiology is plausibly not strictly compartmentalized within the CNS but may also result from the dysfunction of other physiological systems in the entire body. This view implies that AD may not have a single cause, but rather needs to be considered as a spectrum of multiple chronic pathological modalities converging to the persistent stressing of CNS neurons. These chronic pathological modalities, which include cardiovascular disease, metabolic disorders, and CNS structural changes, often start individually, and over time combine with other chronic modalities to incrementally escalate the amount of stress applied to CNS neurons. We present the case for considering Aβ as a marker of neuronal stress in response to hypoxic, toxic, and starvation events, rather than solely a marker of AD. We also detail numerous human chronic conditions that can lead to neuronal stress in the CNS, making the link with co-morbidities encountered in daily clinical AD practice. Finally, we explain how our theory could be leveraged to improve clinical care for AD and related dementia in personalized medicine paradigms in the near future.
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Affiliation(s)
- Boris Decourt
- Translational Neurodegenerative Research Laboratory, Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV 89106, USA.
| | - Gary X D’Souza
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA.
| | - Jiong Shi
- Translational Neurodegenerative Research Laboratory, Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV 89106, USA.
- Cleveland Clinic Nevada and Lou Ruvo Center for Brain Health, Las Vegas, NV 89106, USA.
| | - Aaron Ritter
- Cleveland Clinic Nevada and Lou Ruvo Center for Brain Health, Las Vegas, NV 89106, USA.
| | - Jasmin Suazo
- Translational Neurodegenerative Research Laboratory, Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV 89106, USA.
| | - Marwan N Sabbagh
- Translational Neurodegenerative Research Laboratory, Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV 89106, USA.
- Cleveland Clinic Nevada and Lou Ruvo Center for Brain Health, Las Vegas, NV 89106, USA.
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Saunders S, Ritchie CW, Russ TC, Muniz-Terrera G, Milne R. Assessing and disclosing test results for ‘mild cognitive impairment’: the perspective of old age psychiatrists in Scotland. BMC Geriatr 2022; 22:50. [PMID: 35022025 PMCID: PMC8754072 DOI: 10.1186/s12877-021-02693-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 11/15/2021] [Indexed: 03/11/2023] Open
Abstract
Abstract
Background
Mild cognitive impairment (MCI) is a condition that exists between normal healthy ageing and dementia with an uncertain aetiology and prognosis. This uncertainty creates a complex dynamic between the clinicians’ conception of MCI, what is communicated to the individual about their condition, and how the individual responds to the information conveyed to them. The aim of this study was to explore clinicians’ views around the assessment and communication of MCI in memory clinics.
Method
As part of a larger longitudinal study looking at patients’ adjustment to MCI disclosure, we interviewed Old Age Psychiatrists at the five participating sites across Scotland. The study obtained ethics approvals and the interviews (carried out between Nov 2020–Jan 2021) followed a semi-structured schedule focusing on [1] how likely clinicians are to use the term MCI with patients; [2] what tests clinicians rely on and how much utility they see in them; and [3] how clinicians communicate risk of progression to dementia. The interviews were voice recorded and were analysed using reflective thematic analysis.
Results
Initial results show that most clinicians interviewed (Total N = 19) considered MCI to have significant limitations as a diagnostic term. Nevertheless, most clinicians reported using the term MCI (n = 15/19). Clinical history was commonly described as the primary aid in the diagnostic process and also to rule out functional impairment (which was sometimes corroborated by Occupational Therapy assessment). All clinicians reported using the Addenbrooke’s Cognitive Examination-III as a primary assessment tool. Neuroimaging was frequently found to have minimal usefulness due to the neuroradiological reports being non-specific.
Conclusion
Our study revealed a mixture of approaches to assessing and disclosing test results for MCI. Some clinicians consider the condition as a separate entity among neurodegenerative disorders whereas others find the term unhelpful due to its uncertain prognosis. Clinicians report a lack of specific and sensitive assessment methods for identifying the aetiology of MCI in clinical practice. Our study demonstrates a broad range of views and therefore variability in MCI risk disclosure in memory assessment services which may impact the management of individuals with MCI.
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Jang S, Choi SW, Son SJ, Oh J, Ha J, Kim WJ, Roh HW, Kim KY, Lee S, Jung E, Cha W, Chae H, Kang S, Kwon JH, Kim IY, Lee JY, Shin HK, Ryu JS, Ahn R, Hong CH, Seok JH. Virtual reality-based monitoring test for MCI: A multicenter feasibility study. Front Psychiatry 2022; 13:1057513. [PMID: 36741575 PMCID: PMC9891464 DOI: 10.3389/fpsyt.2022.1057513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/19/2022] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES As the significance of the early diagnosis of mild cognitive impairment (MCI) has emerged, it is necessary to develop corresponding screening tools with high ecological validity and feasible biomarkers. Virtual reality (VR)-based cognitive assessment program, which is close to the daily life of the older adults, can be suitable screening tools for MCI with ecological validity and accessibility. Meanwhile, dehydroepiandrosterone (DHEA) has been observed at a low concentration in the older adults with dementia or cognitive decline, indicating its potential as a biomarker of MCI. This study aimed to determine the efficacy and usability of a VR cognitive assessment program and salivary DHEA for screening MCI. METHODS The VR cognitive assessment program and the traditional Montreal Cognitive Assessment (MOCA) test were performed on 12 patients with MCI and 108 healthy older adults. The VR program operates in a situation of caring for a grandchild, and evaluates the memory, attention, visuospatial, and executive functions. An analysis of covariance (ANCOVA), a partial correlation analysis, and receiving operating characteristic (ROC) curve analysis were conducted for statistical analysis. RESULTS According to the ANCOVA, no significant difference in MOCA scores was found between the normal and MCI groups (F = 2.36, p = 0.127). However, the VR total score of the MCI group was significantly lower than that of the normal group (F = 8.674, p = 0.004). There was a significant correlation between the MOCA and VR scores in the total and matched subdomain scores. The ROC curve analysis also showed a larger area under the curve (AUC) for the VR test (0.765) than for the MOCA test (0.598), and the sensitivity and specificity of the VR program were 0.833 and 0.722, respectively. Salivary DHEA was correlated with VR total (R 2 = 0.082, p = 0.01) and attention scores (R 2 = 0.086, p = 0.009). CONCLUSION The VR cognitive test was as effective as the traditional MOCA test in the MCI classification and safe enough for older adults to perform, indicating its potential as a diagnostic tool. It has also been shown that salivary DHEA can be used as a biomarker for MCI.
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Affiliation(s)
- Sooah Jang
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Sun-Woo Choi
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Sang Joon Son
- Department of Psychiatry, Ajou University, Suwon, Gyeonggi-do, Republic of Korea
| | - Jooyoung Oh
- Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Junghee Ha
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Woo Jung Kim
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Hyun Woong Roh
- Department of Psychiatry, Ajou University, Suwon, Gyeonggi-do, Republic of Korea
| | - Keun You Kim
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - San Lee
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Eunjin Jung
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Woojin Cha
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heonjoo Chae
- FNIKorea Co., Ltd., Gwacheon, Gyeonggi-do, Republic of Korea
| | - Suzi Kang
- FNIKorea Co., Ltd., Gwacheon, Gyeonggi-do, Republic of Korea
| | - Ji Hye Kwon
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - In-Young Kim
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Ju-Yeal Lee
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Hyun Kyung Shin
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Sun Ryu
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea.,Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ryunsup Ahn
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Chang Hyung Hong
- Department of Psychiatry, Ajou University, Suwon, Gyeonggi-do, Republic of Korea
| | - Jeong-Ho Seok
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea.,Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Yuan Q, Qi W, Xue C, Ge H, Hu G, Chen S, Xu W, Song Y, Zhang X, Xiao C, Chen J. Convergent Functional Changes of Default Mode Network in Mild Cognitive Impairment Using Activation Likelihood Estimation. Front Aging Neurosci 2021; 13:708687. [PMID: 34675797 PMCID: PMC8525543 DOI: 10.3389/fnagi.2021.708687] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/30/2021] [Indexed: 12/13/2022] Open
Abstract
Background: Mild cognitive impairment (MCI) represents a transitional state between normal aging and dementia disorders, especially Alzheimer's disease (AD). The disruption of the default mode network (DMN) is often considered to be a potential biomarker for the progression from MCI to AD. The purpose of this study was to assess MRI-specific changes of DMN in MCI patients by elucidating the convergence of brain regions with abnormal DMN function. Methods: We systematically searched PubMed, Ovid, and Web of science for relevant articles. We identified neuroimaging studies by using amplitude of low frequency fluctuation /fractional amplitude of low frequency fluctuation (ALFF/fALFF), regional homogeneity (ReHo), and functional connectivity (FC) in MCI patients. Based on the activation likelihood estimation (ALE) algorithm, we carried out connectivity modeling of coordination-based meta-analysis and functional meta-analysis. Results: In total, this meta-analysis includes 39 articles on functional neuroimaging studies. Using computer software analysis, we discovered that DMN changes in patients with MCI mainly occur in bilateral inferior frontal lobe, right medial frontal lobe, left inferior parietal lobe, bilateral precuneus, bilateral temporal lobe, and parahippocampal gyrus (PHG). Conclusions: Herein, we confirmed the presence of DMN-specific damage in MCI, which is helpful in revealing pathology of MCI and further explore mechanisms of conversion from MCI to AD. Therefore, we provide a new specific target and direction for delaying conversion from MCI to AD.
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Affiliation(s)
- Qianqian Yuan
- Department of Radiology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Wenzhang Qi
- Department of Radiology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Chen Xue
- Department of Radiology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Honglin Ge
- Department of Neurosurgery, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Guanjie Hu
- Department of Neurosurgery, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Shanshan Chen
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Wenwen Xu
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yu Song
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - XuLian Zhang
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Chaoyong Xiao
- Department of Radiology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.,Department of Neurosurgery, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Jiu Chen
- Department of Neurosurgery, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, China.,Institute of Neuropsychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Fourth Clinical College of Nanjing Medical University, Nanjing, China
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40
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Gao L, Li J, Yan M, Aili M. Methylation factor MRPL15 identified as a potential biological target in Alzheimer's disease. Aging (Albany NY) 2021; 13:13560-13570. [PMID: 34016794 PMCID: PMC8202902 DOI: 10.18632/aging.202862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/03/2020] [Indexed: 12/12/2022]
Abstract
Alzheimer’s disease (AD) is the most common form of dementia. However, the molecular basis of the development and progression of AD is still unclear. To elucidate the molecular processes related to AD, we obtained the expression profiles and analyzed the differentially expressed genes (DEGs). The genes potentially involved in the AD process were identified by PPI network and STEM analysis. The molecular mechanisms related to the recognition of AD were determined by GSEA and enrichment analysis. The differences from immune cells in AD were calculated. The methylation factors were identified by methylation difference analysis. Among them, MRPL15 was identified as suitable for diagnosing AD. Its expression trend had been verified in GSE5281. Importantly, MRPL15 was also a methylation factor. In addition, macrophages and neutrophils were up-regulated in AD patients. This was consistent with previous immune inflammation responses identified as being involved in the development of AD. The results of the present study revealed the genetic changes and molecular mechanisms involved in the process of the development and deterioration of AD patients. The potential AD risk genes and potential biological targets were identified. It provided evidence that immune inflammation and immune cells play an important role in AD.
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Affiliation(s)
- Li Gao
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uighur Medicine, Urmuqi 830011, China
| | - Jianmei Li
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uighur Medicine, Urmuqi 830011, China
| | - Ming Yan
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uighur Medicine, Urmuqi 830011, China
| | - Maimaiti Aili
- Prescription Laboratory of Xinjiang Traditional Uyghur Medicine, Xinjiang Institute of Traditional Uighur Medicine, Urmuqi 830011, China
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41
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Wang X, Huang K, Yang F, Chen D, Cai S, Huang L. Association between structural brain features and gene expression by weighted gene co-expression network analysis in conversion from MCI to AD. Behav Brain Res 2021; 410:113330. [PMID: 33940051 DOI: 10.1016/j.bbr.2021.113330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 12/24/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease. Mild cognitive impairment (MCI) represents a state of cognitive function between normal cognition and dementia. Longitudinal studies showed that some MCI patients remained in a state of MCI, and some developed AD. The reason for these different conversions from MCI remains to be investigated. 180 MCI participants were followed for eight years. 143 MCI patients maintained the MCI state (MCI_S), and the remaining thirty-seven MCI patients were re-evaluated as having AD (MCI_AD). We obtained 1,036 structural brain characteristics and 15,481 gene expression values from the 180 MCI participants and applied weighted gene co-expression network analysis (WGCNA) to explore the relationship between structural brain features and gene expression. Regulating mediator effect analysis was employed to explore the relationships among gene expression, brain region measurements and clinical phenotypes. We found that 60 genes from the MCI_S group and 18 genes from the MCI_AD group respectively had the most significant correlations with left paracentral lobule and sulcus (L.PTS) and right subparietal sulcus (R.SubPS) thickness; CTCF, UQCR11 and WDR5B were the mutual genes between the two groups. The expression of CTCF gene and clinical score are completely mediated by L.PTS thickness, and the UQCR11 and WDR5B gene expression levels significantly regulate the mediating effect pathway. In conclusion, the factors affecting the different conversions from MCI are closely related to L.PTS thickness and the CTCF, UQCR11 and WDR5B gene expression levels. Our results add a theoretical foundation of imaging genetics for conversion from MCI to AD.
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Affiliation(s)
- Xuwen Wang
- School of Life Sciences and Technology, Xidian University, Xi'an, Shaanxi, 710071, PR China
| | - Kexin Huang
- School of Life Sciences and Technology, Xidian University, Xi'an, Shaanxi, 710071, PR China
| | - Fan Yang
- School of Life Sciences and Technology, Xidian University, Xi'an, Shaanxi, 710071, PR China
| | - Dihun Chen
- School of Life Sciences and Technology, Xidian University, Xi'an, Shaanxi, 710071, PR China
| | - Suping Cai
- School of Life Sciences and Technology, Xidian University, Xi'an, Shaanxi, 710071, PR China.
| | - Liyu Huang
- School of Life Sciences and Technology, Xidian University, Xi'an, Shaanxi, 710071, PR China.
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Chung HE, Chen J, Ghosalkar D, Christensen JL, Chu AJ, Mantsounga CS, Neverson J, Soares C, Shah NR, Wu WC, Choudhary G, Morrison AR. Aortic Valve Calcification Is Associated with Future Cognitive Impairment. J Alzheimers Dis Rep 2021; 5:337-343. [PMID: 34113789 PMCID: PMC8150250 DOI: 10.3233/adr-200253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND While an association between atherosclerosis and dementia has been identified, few studies have assessed the longitudinal relationship between aortic valve calcification (AVC) and cognitive impairment (CI). OBJECTIVE We sought to determine whether AVC derived from lung cancer screening CT (LCSCT) was associated with CI in a moderate-to-high atherosclerotic risk cohort. METHODS This was a single site, retrospective analysis of 1401 U.S. veterans (65 years [IQI: 61, 68] years; 97%male) who underwent quantification of AVC from LCSCT indicated for smoking history. The primary outcome was new diagnosis of CI identified by objective testing (Mini-Mental Status Exam or Montreal Cognitive Assessment) or by ICD coding. Time-to-event analysis was carried out using AVC as a continuous variable. RESULTS Over 5 years, 110 patients (8%) were diagnosed with CI. AVC was associated with new diagnosis of CI using 3 Models for adjustment: 1) age (HR: 1.104; CI: 1.023-1.191; p = 0.011); 2) Model 1 plus hypertension, hyperlipidemia, diabetes, CKD stage 3 or higher (glomerular filtration rate < 60 mL/min) and CAD (HR: 1.097; CI: 1.014-1.186; p = 0.020); and 3) Model 2 plus CVA (HR: 1.094; CI: 1.011-1.182; p = 0.024). Sensitivity analysis demonstrated that the association between AVC and new diagnosis of CI remained significant upon exclusion of severe AVC (HR: 1.100 [1.013-1.194]; p = 0.023). Subgroup analysis demonstrated that this association remained significant when including education in the multivariate analysis (HR: 1.127 [1.030-1.233]; p = 0.009). CONCLUSION This is the first study demonstrating that among mostly male individuals who underwent LCSCT, quantified aortic valve calcification is associated with new diagnosis of CI.
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Affiliation(s)
- Hojune E. Chung
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Jessica Chen
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Dhairyasheel Ghosalkar
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Jared L. Christensen
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Alice J. Chu
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Chris S. Mantsounga
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Jade Neverson
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Cullen Soares
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Nishant R. Shah
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Wen-Chih Wu
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Gaurav Choudhary
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
| | - Alan R. Morrison
- Department of Internal Medicine (Section of Cardiovascular Medicine), Providence VA Medical Center, Providence, RI, USA
- Department of Internal Medicine (Section of Cardiovascular Medicine), Alpert Medical School at Brown University, Providence, RI, USA
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Hartle L, Charchat-Fichman H. Mild cognitive impairment history and current procedures in low- and middle-income countries: a brief review. Dement Neuropsychol 2021; 15:155-163. [PMID: 34345356 PMCID: PMC8283875 DOI: 10.1590/1980-57642021dn15-020001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 02/07/2021] [Indexed: 12/21/2022] Open
Abstract
Mild cognitive impairment (MCI) is a widely studied concept that has changed over time. Epidemiology, diagnosis, costs, prognostics, screening procedures, and categorization have been extensively discussed. However, unified guidelines are still not available, especially considering differences between low- and middle-income countries (LMIC) and high-income countries (HIC).
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Affiliation(s)
- Larissa Hartle
- Department of Psychology, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Department of Philosophy, Social, Human and Education Sciences, Università degli Studi di Perugia, Perugia, Italy
| | - Helenice Charchat-Fichman
- Department of Psychology, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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44
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Kung TH, Chao TC, Xie YR, Pai MC, Kuo YM, Lee GGC. Neuroimage Biomarker Identification of the Conversion of Mild Cognitive Impairment to Alzheimer's Disease. Front Neurosci 2021; 15:584641. [PMID: 33746695 PMCID: PMC7968420 DOI: 10.3389/fnins.2021.584641] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 01/08/2021] [Indexed: 01/29/2023] Open
Abstract
An efficient method to identify whether mild cognitive impairment (MCI) has progressed to Alzheimer's disease (AD) will be beneficial to patient care. Previous studies have shown that magnetic resonance imaging (MRI) has enabled the assessment of AD progression based on imaging findings. The present work aimed to establish an algorithm based on three features, namely, volume, surface area, and surface curvature within the hippocampal subfields, to model variations, including atrophy and structural changes to the cortical surface. In this study, a new biomarker, the ratio of principal curvatures (RPC), was proposed to characterize the folding patterns of the cortical gyrus and sulcus. Along with volumes and surface areas, these morphological features associated with the hippocampal subfields were assessed in terms of their sensitivity to the changes in cognitive capacity by two different feature selection methods. Either the extracted features were statistically significantly different, or the features were selected through a random forest model. The identified subfields and their structural indices that are sensitive to the changes characteristic of the progression from MCI to AD were further assessed with a multilayer perceptron classifier to help facilitate the diagnosis. The accuracy of the classification based on the proposed method to distinguish whether a MCI patient enters the AD stage amounted to 79.95%, solely using the information from the features selected by a logical feature selection method.
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Affiliation(s)
- Te-Han Kung
- MediaTek Inc., Hsinchu, Taiwan
- Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Tzu-Cheng Chao
- Department of Radiology, Mayo Clinic, Rochester, MN, United States
| | - Yi-Ru Xie
- Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Ming-Chyi Pai
- Division of Behavioral Neurology, Department of Neurology, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
- Alzheimer’s Disease Research Center, National Cheng Kung University Hospital, Tainan, Taiwan
- Institute of Gerontology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Min Kuo
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Gwo Giun Chris Lee
- Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan
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45
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Gao X, Li S, Cong C, Wang Y, Xu L. A Network Pharmacology Approach to Estimate Potential Targets of the Active Ingredients of Epimedium for Alleviating Mild Cognitive Impairment and Treating Alzheimer's Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:2302680. [PMID: 33574879 PMCID: PMC7861915 DOI: 10.1155/2021/2302680] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 12/21/2020] [Accepted: 01/15/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND The present study made use of a network pharmacological approach to evaluate the mechanisms and potential targets of the active ingredients of Epimedium for alleviating mild cognitive impairment (MCI) and treating Alzheimer's disease (AD). METHODS The active ingredients of Epimedium were acquired from the Traditional Chinese Medicine System Pharmacology database, and potential targets were predicted using the TCMSP target module, SwissTargetPrediction, and PharmMapper database. Target proteins correlating with MCI and AD were downloaded from the GeneCards, DisGeNet, and OMIM databases. The common targets of Epimedium, MCI, and AD were identified using the Jvenn online tool, and a protein-protein interaction (PPI) network was constructed using the String database and Cytoscape. Finally, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis of the common targets was performed using DAVID, and molecular docking between active ingredients and target genes was modeled using AutoDock Vina. RESULTS A total of 20 active ingredients were analyzed, and 337 compound-related targets were identified for Epimedium. Out of 236 proteins associated with MCI and AD, 54 overlapped with the targets of Epimedium. The top 30 interacting proteins in this set were ranked by topological analysis. GO and KEGG enrichment analysis suggested that the common targets participated in diverse biological processes and pathways, including cell proliferation and apoptosis, inflammatory response, signal transduction, and protein phosphorylation through cancer pathway, MAPK signaling pathway, PI3K-Akt signaling pathway, HIF-1 signaling pathway, sphingolipid signaling pathway, FoxO signaling pathway, and TNF signaling pathway. Molecular docking analysis suggested that the 20 active ingredients could bind to the top 5 protein targets. CONCLUSIONS The present study provides theoretical evidence for in-depth analysis of the mechanisms and molecular targets by which Epimedium protects against MCI, AD, and other neurodegenerative diseases and lays the foundation for pragmatic clinical applications and potential new drug development.
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Affiliation(s)
- Xianwei Gao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shengnan Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Chao Cong
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yuejiao Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Lianwei Xu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
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Li W, Yue L, Sun L, Xiao S. Elevated Fasting Plasma Glucose Is Associated With an Increased Risk of MCI: A Community-Based Cross-Sectional Study. Front Endocrinol (Lausanne) 2021; 12:739257. [PMID: 34867782 PMCID: PMC8635189 DOI: 10.3389/fendo.2021.739257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 10/28/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Mild cognitive impairment (MCI) is a transitional state between normal elderly people and dementia, with a higher risk of dementia transition. The primary purpose of the current study was to investigate whether routine blood and blood biochemical markers could be used to predict the onset of MCI. METHODS Data was obtained from the cohort study on brain health of the elderly in Shanghai. A total of 1015 community elders were included in the current study. Based on clinical evaluation and the scores of Montreal Cognitive Assessment (MoCA), these participants were divided into the MCI (n=444) and cognitively normal groups (n=571). Then we tested their fasting blood routine and blood biochemical indexes, and collected their general demographic data by using a standard questionnaire. RESULTS By using binary logistic regression analysis and the ROC curve, we found that elevated fasting plasma glucose (p=0.025, OR=1.118, OR=1.014-1.233) was a risk factor for MCI. CONCLUSIONS Elevated fasting blood glucose may be a risk factor for mild cognitive impairment, but the above conclusions need to be verified by longitudinal studies.
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Affiliation(s)
- Wei Li
- Department of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Alzheimer’s Disease and Related Disorders Center, Shanghai Jiao Tong University, Shanghai, China
| | - Ling Yue
- Department of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Alzheimer’s Disease and Related Disorders Center, Shanghai Jiao Tong University, Shanghai, China
| | - Lin Sun
- Department of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Alzheimer’s Disease and Related Disorders Center, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Lin Sun, ; Shifu Xiao,
| | - Shifu Xiao
- Department of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Alzheimer’s Disease and Related Disorders Center, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Lin Sun, ; Shifu Xiao,
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47
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Li X, Wang F, Liu X, Cao D, Cai L, Jiang X, Yang X, Yang T, Asakawa T. Changes in Brain Function Networks in Patients With Amnestic Mild Cognitive Impairment: A Resting-State fMRI Study. Front Neurol 2020; 11:554032. [PMID: 33101173 PMCID: PMC7554345 DOI: 10.3389/fneur.2020.554032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/02/2020] [Indexed: 12/12/2022] Open
Abstract
Patients with amnestic mild cognitive impairment (aMCI) are at high risk of developing dementia. This study used resting-state functional magnetic resonance imaging (rs-fMRI) and an independent component analysis (ICA) approach to explore changes in functional connectivity (FC) in the default mode network (DMN), executive control network (ECN), and salience network (SN). Thirty patients with aMCI and 30 healthy controls (HCs) were enrolled. All the participants underwent an rs-fMRI scan. The brain FC in DMN, ECN, and SN was calculated using the ICA approach. We found that the FC of brain regions in DMN decreased significantly and that of brain regions in ECN increased, which was in accordance with the findings of previous studies on Alzheimer's disease (AD) and aMCI. We also found that the FC of brain regions in SN increased, which was different from the findings of previous studies on AD. The increase in FC in brain regions in SN might result from different pathophysiological states in AD and aMCI, indicating that a decrease in FC in SN does not occur in a person with aMCI. These results are consistent with those of previous studies using the voxel-mirrored homotopic connectivity approach and seed-based correlation analysis. We therefore considered that the decrease in FC in DMN and the increase in FC in ECN and SN might be peculiar patterns observed on the rs-fMRI of a person with aMCI. These findings may contribute to the development of imaging biomarkers for the diagnosis of aMCI.
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Affiliation(s)
- Xiaoling Li
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Feng Wang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- Division of CT and MRI, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiaohui Liu
- Division of CT and MRI, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Danna Cao
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- Division of CT and MRI, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Lina Cai
- Division of CT and MRI, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiaoxu Jiang
- Division of CT and MRI, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xu Yang
- Division of CT and MRI, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Tiansong Yang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Tetsuya Asakawa
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
- Research Base of Traditional Chinese Medicine Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, China
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48
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Das N, Ren J, Spence JS, Rackley A, Chapman SB. Relationship of Parieto-Occipital Brain Energy Phosphate Metabolism and Cognition Using 31P MRS at 7-Tesla in Amnestic Mild Cognitive Impairment. Front Aging Neurosci 2020; 12:222. [PMID: 33005142 PMCID: PMC7483543 DOI: 10.3389/fnagi.2020.00222] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/22/2020] [Indexed: 01/02/2023] Open
Abstract
Background The human brain has high energy requirements that continuously support healthy neuronal activity and cognition. A disruption in brain energy metabolism (BEM) may contribute to early neuropathological changes such as accumulation of β-amyloid and tau in vulnerable populations. One such population is amnestic mild cognitive impairment (aMCI) where some individuals are at risk for developing dementia, i.e. Alzheimer’s disease (AD). Recent advances in imaging technology are providing new avenues to measure BEM accurately using 31phosphorus magnetic resonance spectroscopy (31P MRS) at ultra-high-field (UHF) magnetic strength 7-Tesla. This study investigates whether a methodology using partial volume-coil 31P MRS at 7T over parieto-occipital lobes can accurately quantify high-energy phosphate and membrane phospholipid metabolites in aMCI. A secondary objective was to explore BEM and membrane phospholipid indices’ correspondence with cognitive performance in domains of executive function (EF), memory, attention, and visuospatial skills in aMCI, a heterogeneous population. Methods 19 aMCI participants enrolled in the study completed cognitive assessment and 31P MRS scan. BEM indices were measured using three energy indicators: energy reserve (PCr/t-ATP), energy consumption (intracellular_Pi/t-ATP), and metabolic state (PCr/intracellular_Pi) along with regulatory co-factors of BEM-intracellular Mg2 + and pH; whereas the ratio of phosphomonoesters (PMEs) to phosphodiesters (PDEs) – membrane phospholipid indicator. Results 31P MRS scan showed thirteen well-resolved peaks with precise quantification of the phosphorus metabolites at UHF. The higher BEM indices were associated with lower cognitive performance of memory [(energy reserve indicator: CVLT p = 0.004), (metabolic state indicator: CVLT p = 0.007)], executive function [(metabolic state indicator: TOSL (p = 0.044)], and attention [(pH: selective auditory task, p = 0.044)]. The finding of an inverse relationship observed in the parieto-occipital lobes suggests an association between neuronal energy markers with cognition in aMCI. Conclusion The significant contribution of this preliminary research was to establish the feasibility of utilizing a methodology at UHF to accurately measure high-energy phosphate and membrane phospholipid metabolites in a population with heterogeneous outcomes. This work offers a novel approach for future work to further elucidate early dementia biomarkers or precursors to the downstream accumulation of amyloid and tau using the combination of MRS-PET imaging modalities in AD.
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Affiliation(s)
- Namrata Das
- Center for BrainHealth, The University of Texas at Dallas, Dallas, TX, United States
| | - Jimin Ren
- Advanced Imaging Research Center, and Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Jeffrey S Spence
- Center for BrainHealth, The University of Texas at Dallas, Dallas, TX, United States
| | - Audette Rackley
- Center for BrainHealth, The University of Texas at Dallas, Dallas, TX, United States
| | - Sandra B Chapman
- Center for BrainHealth, The University of Texas at Dallas, Dallas, TX, United States
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Wei W, Wang ZY, Ma LN, Zhang TT, Cao Y, Li H. MicroRNAs in Alzheimer's Disease: Function and Potential Applications as Diagnostic Biomarkers. Front Mol Neurosci 2020; 13:160. [PMID: 32973449 PMCID: PMC7471745 DOI: 10.3389/fnmol.2020.00160] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/05/2020] [Indexed: 12/14/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common form of dementia. Although the incidence of AD is high, the rates of diagnosis and treatment are relatively low. Moreover, effective means for the diagnosis and treatment of AD are still lacking. MicroRNAs (miRNAs, miRs) are non-coding RNAs that play regulatory roles by targeting mRNAs. The expression of miRNAs is conserved, temporal, and tissue-specific. Impairment of microRNA function is closely related to AD pathogenesis, including the beta-amyloid and tau hallmarks of AD, and there is evidence that the expression of some microRNAs differs significantly between healthy people and AD patients. These properties of miRNAs endow them with potential diagnostic and therapeutic value in the treatment of this debilitating disease. This review provides comprehensive information about the regulatory function of miRNAs in AD, as well as potential applications as diagnostic biomarkers.
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Affiliation(s)
- Wei Wei
- First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China.,Department of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhi-Yong Wang
- Department of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li-Na Ma
- Department of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ting-Ting Zhang
- First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China.,Department of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yu Cao
- Department of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hao Li
- Department of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Nguyen TT, Ta QTH, Nguyen TKO, Nguyen TTD, Vo VG. Role of Body-Fluid Biomarkers in Alzheimer's Disease Diagnosis. Diagnostics (Basel) 2020; 10:diagnostics10050326. [PMID: 32443860 PMCID: PMC7277970 DOI: 10.3390/diagnostics10050326] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/02/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023] Open
Abstract
Alzheimer’s disease (AD) is a complex neurodegenerative disease that requires extremely specific biomarkers for its diagnosis. For current diagnostics capable of identifying AD, the development and validation of early stage biomarkers is a top research priority. Body-fluid biomarkers might closely reflect synaptic dysfunction in the brain and, thereby, could contribute to improving diagnostic accuracy and monitoring disease progression, and serve as markers for assessing the response to disease-modifying therapies at early onset. Here, we highlight current advances in the research on the capabilities of body-fluid biomarkers and their role in AD pathology. Then, we describe and discuss current applications of the potential biomarkers in clinical diagnostics in AD.
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Affiliation(s)
- Thuy Trang Nguyen
- Faculty of Pharmacy, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City 700000, Vietnam;
| | - Qui Thanh Hoai Ta
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam;
| | - Thi Kim Oanh Nguyen
- Faculty of Food Science and Technology, Ho Chi Minh City University of Food Industry, Ho Chi Minh City 700000, Vietnam;
| | - Thi Thuy Dung Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Vietnam
- Correspondence: (T.T.D.N.); (V.G.V.)
| | - Van Giau Vo
- Department of Industrial and Environmental Engineering, Graduate School of Environment, Gachon University, 1342 Sungnam-daero, Sujung-gu, Seongnam-si, Gyeonggi-do 461-701, Korea
- Department of BionanoTechnology, Gachon University, 1342 Sungnam-daero, Sujung-gu, Seongnam-si, Gyeonggi-do 461-701, Korea
- Correspondence: (T.T.D.N.); (V.G.V.)
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