journal
https://read.qxmd.com/read/37736326/altered-auditory-processes-pattern-predicts-cognitive-decline-in-older-adults-different-modalities-with-aging
#1
JOURNAL ARTICLE
Junjie Yang, Xiaochen Tang, Shaohui Lin, Lijuan Jiang, Kai Wei, Xinyi Cao, Lingshan Wan, Jijun Wang, Hansheng Ding, Chunbo Li
BACKGROUND: Cohort studies have shown that older adults with hearing impairment as assessed by self-report or behavioral measures are at higher risk of developing dementia many years later. A fine-grained examination of auditory processing holds promise for more effective screening of older adults at risk of cognitive decline. The auditory mismatch negativity (MMN) measure enables one to gain insights into the neurobiological substrate of central auditory processing. We hypothesized that older adults showing compromised indexes of MMN at baseline would exhibit cognitive decline at the one-year follow-up...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37736325/gut-microbiome-association-with-brain-imaging-markers-apoe-genotype-calcium-and-vegetable-intakes-and-obesity-in-healthy-aging-adults
#2
JOURNAL ARTICLE
Tyler C Hammond, Stefan J Green, Yael Jacobs, George E Chlipala, Xin Xing, Sally Heil, Anna Chen, Chetan Aware, Abeoseh Flemister, Arnold Stromberg, Priti Balchandani, Ai-Ling Lin
INTRODUCTION: Advanced age is a significant factor in changes to brain physiology and cognitive functions. Recent research has highlighted the critical role of the gut microbiome in modulating brain functions during aging, which can be influenced by various factors such as apolipoprotein E (APOE) genetic variance, body mass index (BMI), diabetes, and dietary intake. However, the associations between the gut microbiome and these factors, as well as brain structural, vascular, and metabolic imaging markers, have not been well explored...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37731955/obesity-reduces-hippocampal-structure-and-function-in-older-african-americans-with-the-apoe-%C3%AE%C2%B54-alzheimer-s-disease-risk-allele
#3
JOURNAL ARTICLE
Zuzanna Osiecka, Bernadette A Fausto, Joshua L Gills, Neha Sinha, Steven K Malin, Mark A Gluck
INTRODUCTION: Excess body weight and Alzheimer's disease (AD) disproportionately affect older African Americans. While mid-life obesity increases risk for AD, few data exist on the relationship between late-life obesity and AD, or how obesity-based and genetic risk for AD interact. Although the APOE-ε4 allele confers a strong genetic risk for AD, it is unclear if late-life obesity poses a greater risk for APOE-ε4 carriers compared to non-carriers. Here we assessed: (1) the influence of body mass index (BMI) (normal; overweight; class 1 obese; ≥ class 2 obese) on cognitive and structural MRI measures of AD risk; and (2) the interaction between BMI and APOE-ε4 in older African Americans...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37731954/differential-effects-of-ageing-on-the-neural-processing-of-speech-and-singing-production
#4
JOURNAL ARTICLE
Nella Moisseinen, Teppo Särkämö, Jaakko Kauramäki, Boris Kleber, Aleksi J Sihvonen, Noelia Martínez-Molina
BACKGROUND: Understanding healthy brain ageing has become vital as populations are ageing rapidly and age-related brain diseases are becoming more common. In normal brain ageing, speech processing undergoes functional reorganisation involving reductions of hemispheric asymmetry and overactivation in the prefrontal regions. However, little is known about how these changes generalise to other vocal production, such as singing, and how they are affected by associated cognitive demands. METHODS: The present cross-sectional fMRI study systematically maps the neural correlates of vocal production across adulthood ( N =100, age 21-88 years) using a balanced 2x3 design where tasks varied in modality (speech: proverbs / singing: song phrases) and cognitive demand (repetition / completion from memory / improvisation)...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37731953/lactoferrin-neuroprotection-against-parkinson-s-disease-and-secondary-molecule-for-potential-treatment
#5
REVIEW
Furkan Eker, Ecem Bolat, Burcu Pekdemir, Hatice Duman, Sercan Karav
Parkinson's disease (PD) is the second-most common neurodegenerative disease and is largely caused by the death of dopaminergic (DA) cells. Dopamine loss occurs in the substantia nigra pars compacta and leads to dysfunctions in motor functions. Death of DA cells can occur with oxidative stress and dysfunction of glial cells caused by Parkinson-related gene mutations. Lactoferrin (Lf) is a multifunctional glycoprotein that is usually known for its presence in milk, but recent research shows that Lf is also found in the brain regions...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37731952/global-trends-and-prospects-about-synaptic-plasticity-in-alzheimer-s-disease-a-bibliometric-analysis
#6
REVIEW
Yingying Zhang, Junyao Zhang, Yinuo Wang, Junyan Yao
BACKGROUND AND PURPOSE: In recent years, synaptic plasticity disorders have been identified as one of the key pathogenic factors and the early pathological characteristics of Alzheimer's disease (AD). In this study, we tried to use bibliometric analysis to gain a systematic understanding about synaptic plasticity in Alzheimer's disease. METHODS: We extracted relevant publications from the Web of Science Core Collection (WoSCC) on August 29th, 2022. Then, we used CiteSpace, VOSviewer and other online bibliometric platforms to further analyze the obtained data...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37727320/serum-uric-acid-and-prognosis-in-acute-ischemic-stroke-a-dose-response-meta-analysis-of-cohort-studies
#7
Wenyuan Zhang, Zicheng Cheng, Fangwang Fu, Zhenxiang Zhan
BACKGROUND: There have been contradictory findings regarding the relationship between serum uric acid levels and prognosis in acute ischemic stroke. Whether this association is nonlinear due to uric acid's paradoxical properties (antioxidant and prooxidant) is unclear. METHODS: We searched PubMed, Web of Science, and Embase databases until December 2022. Cohort studies reporting serum uric acid levels and functional outcome, mortality, or neurological complications in patients with acute ischemic stroke were included...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37727319/reduced-biophotonic-activities-and-spectral-blueshift-in-alzheimer-s-disease-and-vascular-dementia-models-with-cognitive-impairment
#8
JOURNAL ARTICLE
Zhuo Wang, Zhipeng Xu, Yi Luo, Sisi Peng, Hao Song, Tian Li, Jiaxin Zheng, Na Liu, Shenjia Wu, Junxia Zhang, Lei Zhang, Yuan Hu, Yanping Liu, Dongwei Lu, Jiapei Dai, Junjian Zhang
BACKGROUND: Although clinically, Alzheimer's disease (AD) and vascular dementia (VaD) are the two major types of dementia, it is unclear whether the biophotonic activities associated with cognitive impairments in these diseases share common pathological features. METHODS: We used the ultraweak biophoton imaging system (UBIS) and synaptosomes prepared by modified percoll method to directly evaluate the functional changes in synapses and neural circuits in AD and VaD model animals...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37719876/associations-between-cognition-anxiety-depression-and-residual-dizziness-in-elderly-people-with-bppv
#9
JOURNAL ARTICLE
Jin Sun, Xiaobao Ma, Ying Yang, Kuan He, Wei Wang, Jiali Shen, Lu Wang, Xiangping Chen, Yulian Jin, Jun Yang, Jianyong Chen
OBJECTIVE: To investigate the associations between cognition, anxiety, depression, and residual dizziness after successful repositioning maneuvers in the elderly with benign paroxysmal positional vertigo (BPPV). METHODS: We enrolled 40 elderly patients with BPPV in our outpatient department. We used the Dizziness Handicap Inventory (DHI), Visual Analog Scale (VAS), Patient Health Questionnaire-9 (PHQ-9), and Generalized Anxiety Disorder Questionnaire-7 (GAD-7) to assess the degree of dizziness, anxiety, and depression of participants before repositioning therapy, respectively...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37719875/csf-metabolites-associated-with-biomarkers-of-alzheimer-s-disease-pathology
#10
JOURNAL ARTICLE
Ruocheng Dong, Qiongshi Lu, Hyunseung Kang, Ivonne Suridjan, Gwendlyn Kollmorgen, Norbert Wild, Yuetiva Deming, Carol A Van Hulle, Rozalyn M Anderson, Henrik Zetterberg, Kaj Blennow, Cynthia M Carlsson, Sanjay Asthana, Sterling C Johnson, Corinne D Engelman
INTRODUCTION: Metabolomics technology facilitates studying associations between small molecules and disease processes. Correlating metabolites in cerebrospinal fluid (CSF) with Alzheimer's disease (AD) CSF biomarkers may elucidate additional changes that are associated with early AD pathology and enhance our knowledge of the disease. METHODS: The relative abundance of untargeted metabolites was assessed in 161 individuals from the Wisconsin Registry for Alzheimer's Prevention...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37719874/the-efficacy-and-practicality-of-the-neurotrack-cognitive-battery-assessment-for-utilization-in-clinical-settings-for-the-identification-of-cognitive-decline-in-an-older-japanese-population
#11
JOURNAL ARTICLE
Jordan M Glenn, Kelsey Bryk, Jennifer R Myers, John Anderson, Kaori Onguchi, Jacob McFarlane, Satoshi Ozaki
INTRODUCTION: Japan has the largest aging population with 33% of the population over the age of 60 years. The number of Japanese adults with dementia is estimated to be approximately 4.6 million, comprising nearly 15% of the older adult population. It is critical to administer cognitive assessments early in the disease state that have high reliability and low user burden to detect negative cognitive changes as early as possible; however, current preclinical AD detection methods are invasive, time-consuming, and expensive...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37719873/an-explainability-artificial-intelligence-approach-to-brain-connectivity-in-alzheimer-s-disease
#12
JOURNAL ARTICLE
Nicola Amoroso, Silvano Quarto, Marianna La Rocca, Sabina Tangaro, Alfonso Monaco, Roberto Bellotti
The advent of eXplainable Artificial Intelligence (XAI) has revolutionized the way human experts, especially from non-computational domains, approach artificial intelligence; this is particularly true for clinical applications where the transparency of the results is often compromised by the algorithmic complexity. Here, we investigate how Alzheimer's disease (AD) affects brain connectivity within a cohort of 432 subjects whose T1 brain Magnetic Resonance Imaging data (MRI) were acquired within the Alzheimer's Disease Neuroimaging Initiative (ADNI)...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37719872/identifying-alzheimer-s-disease-and-mild-cognitive-impairment-with-atlas-based-multi-modal-metrics
#13
JOURNAL ARTICLE
Zhuqing Long, Jie Li, Jianghua Fan, Bo Li, Yukeng Du, Shuang Qiu, Jichang Miao, Jian Chen, Juanwu Yin, Bin Jing
INTRODUCTION: Multi-modal neuroimaging metrics in combination with advanced machine learning techniques have attracted more and more attention for an effective multi-class identification of Alzheimer's disease (AD), mild cognitive impairment (MCI) and health controls (HC) recently. METHODS: In this paper, a total of 180 subjects consisting of 44 AD, 66 MCI and 58 HC subjects were enrolled, and the multi-modalities of the resting-state functional magnetic resonance imaging (rs-fMRI) and the structural MRI (sMRI) for all participants were obtained...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37719871/disconnectome-associated-with-progressive-white-matter-hyperintensities-in-aging-a-virtual-lesion-study
#14
JOURNAL ARTICLE
Meng Li, Mohamad Habes, Hans Grabe, Yan Kang, Shouliang Qi, John A Detre
OBJECTIVE: White matter hyperintensities (WMH) are commonly seen on T2-weighted magnetic resonance imaging (MRI) in older adults and are associated with an increased risk of cognitive decline and dementia. This study aims to estimate changes in the structural connectome due to age-related WMH by using a virtual lesion approach. METHODS: High-quality diffusion-weighted imaging data of 30 healthy subjects were obtained from the Human Connectome Project (HCP) database...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37711996/long-term-environmental-enrichment-is-associated-with-better-fornix-microstructure-in-older-adults
#15
JOURNAL ARTICLE
Olga M Klimecki, Maxie Liebscher, Malo Gaubert, Dayana Hayek, Alexis Zarucha, Martin Dyrba, Claudia Bartels, Katharina Buerger, Michaela Butryn, Peter Dechent, Laura Dobisch, Michael Ewers, Klaus Fliessbach, Silka Dawn Freiesleben, Wenzel Glanz, Stefan Hetzer, Daniel Janowitz, Ingo Kilimann, Luca Kleineidam, Christoph Laske, Franziska Maier, Matthias H Munk, Robert Perneczky, Oliver Peters, Josef Priller, Boris-Stephan Rauchmann, Nina Roy, Klaus Scheffler, Anja Schneider, Eike Jakob Spruth, Annika Spottke, Stefan J Teipel, Jens Wiltfang, Steffen Wolfsgruber, Renat Yakupov, Emrah Düzel, Frank Jessen, Michael Wagner, Sandra Roeske, Miranka Wirth
BACKGROUND: Sustained environmental enrichment (EE) through a variety of leisure activities may decrease the risk of developing Alzheimer's disease. This cross-sectional cohort study investigated the association between long-term EE in young adulthood through middle life and microstructure of fiber tracts associated with the memory system in older adults. METHODS: N = 201 cognitively unimpaired participants (≥ 60 years of age) from the DZNE-Longitudinal Cognitive Impairment and Dementia Study (DELCODE) baseline cohort were included...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37711995/transcriptome-and-methylome-of-the-supraoptic-nucleus-provides-insights-into-the-age-dependent-loss-of-neuronal-plasticity
#16
JOURNAL ARTICLE
Derick Thompson, Abiodun E Odufuwa, Catherine A Brissette, John A Watt
The age-dependent loss of neuronal plasticity is a well-known phenomenon that is poorly understood. The loss of this capacity for axonal regeneration is emphasized following traumatic brain injury, which is a major cause of disability and death among adults in the US. We have previously shown the intrinsic capacity of magnocellular neurons within the supraoptic nucleus to undergo axonal regeneration following unilateral axotomization in an age-dependent manner. The aim of this research was to determine the age-dependent molecular mechanisms that may underlie this phenomenon...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37711994/clinical-features-of-progressive-supranuclear-palsy
#17
JOURNAL ARTICLE
Yafei Wen, Qijie Yang, Bin Jiao, Weiwei Zhang, Jingyi Lin, Yuan Zhu, Qian Xu, Hui Zhou, Ling Weng, Xinxin Liao, Yafang Zhou, Junling Wang, Jifeng Guo, Xinxiang Yan, Hong Jiang, Beisha Tang, Lu Shen
BACKGROUND: Progressive supranuclear palsy (PSP) is a clinically heterogenous atypical parkinsonian syndrome. Therefore, early recognition and correct diagnosis of PSP is challenging but essential. This study aims to characterize the clinical manifestations, magnetic resonance imaging (MRI), and longitudinal MRI changes of PSP in China. METHOD: Clinical and MRI presentations were compared among 150 cases with PSP. Then the longitudinal MRI changes among 20 patients with PSP were further explored...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37711993/uric-acid-regulates-%C3%AE-synuclein-transmission-in-parkinsonian-models
#18
JOURNAL ARTICLE
Yu Jin Shin, Yeon Ju Kim, Ji Eun Lee, Yi Seul Kim, Jung Wook Lee, HyeonJeong Kim, Jin Young Shin, Phil Hyu Lee
Ample evidence demonstrates that α-synuclein (α-syn) has a critical role in the pathogenesis of Parkinson's disease (PD) with evidence indicating that its propagation from one area of the brain to others may be the primary mechanism for disease progression. Uric acid (UA), a natural antioxidant, has been proposed as a potential disease modifying candidate in PD. In the present study, we investigated whether UA treatment modulates cell-to-cell transmission of extracellular α-syn and protects dopaminergic neurons in the α-syn-enriched model...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37711992/eeg-pre-burst-suppression-characterization-and-inverse-association-with-preoperative-cognitive-function-in-older-adults
#19
JOURNAL ARTICLE
Melody Reese, Soren Christensen, Harel Anolick, Kenneth C Roberts, Megan K Wong, Mary Cooter Wright, Leah Acker, Jeffrey N Browndyke, Marty G Woldorff, Miles Berger
The most common complication in older surgical patients is postoperative delirium (POD). POD is associated with preoperative cognitive impairment and longer durations of intraoperative burst suppression (BSup) - electroencephalography (EEG) with repeated periods of suppression (very low-voltage brain activity). However, BSup has modest sensitivity for predicting POD. We hypothesized that a brain state of lowered EEG power immediately precedes BSup, which we have termed "pre-burst suppression" (preBSup). Further, we hypothesized that even patients without BSup experience these preBSup transient reductions in EEG power, and that preBSup (like BSup) would be associated with preoperative cognitive function and delirium risk...
2023: Frontiers in Aging Neuroscience
https://read.qxmd.com/read/37711991/exploring-the-relationship-between-frailty-and-executive-dysfunction-the-role-of-frontal-white-matter-hyperintensities
#20
JOURNAL ARTICLE
Natalia Pozo, César Romero, Maricarmen Andrade, Paul H Délano, Vicente Medel, Marco Troncoso, Patricia Orellana, Maria Isabel Rodriguez, Camila Fabres, Carolina Delgado
INTRODUCTION: Frailty is a geriatric syndrome frequently associated with executive dysfunction and white matter hyperintensities (WMH). But the relation between executive dysfunction and brain changes is poorly understood in frail subjects. Our hypothesis is that frontal-WMH mediates the association between frailty and executive dysfunction. METHODS: A convenience sample of 113 subjects older than 65 years without dementia was studied with neuropsychological test, a structured clinical interview, physical examination and brain MRI...
2023: Frontiers in Aging Neuroscience
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