Mechanical load conditions the spectrin network to `run-on' proteolysis and promotes early onset neurodegeneration DOI Creative Commons

Nawaphat Malaiwong,

Anne-Kristin Dahse,

Li-Chun Lin

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 4, 2024

The correct homeostasis of the neuronal cytoskeleton and its dynamics is important for health disease. Forces constantly act on neurons in our body, leading to subtle axonal deformations length changes. spectrin known as a key player that protects against mechanical damage. How changes with age how it influences mechanoprotection aging animals not well understood. Using an interdisciplinary approach, we show causes loss proprioception during first few days adulthood C. elegans via unfolding, tension degradation cytoskeleton. Guided by proteomic screen identify potential binding partners, found this early-onset neurodegeneration can be suppressed clp-1 mutants targeted expression engineered chaperone derived from human α B-crystallin. Our data suggest sensitized proteolytic damage calcium-sensitive proteases when stresses conspires high-calcium concentrations proprioceptive signaling. These results may have implications etiology diseases which high calcium stress co-incide.

Язык: Английский

TaiChi-MSS protocol: enhancing cognitive and brain function in MCI patients through Tai Chi exercise combined with multisensory stimulation DOI Creative Commons

Chunhui Zhou,

Ganfeng Yang, Yinying Wang

и другие.

Frontiers in Aging Neuroscience, Год журнала: 2025, Номер 17

Опубликована: Фев. 25, 2025

The aging population in China is confronted with considerable challenges, 14.71% of elderly individuals affected by mild cognitive impairment (MCI). practice Tai Chi has been demonstrated to enhance function, while sensory stimulation shown facilitate neural activity. Nevertheless, the combined impact and on cognitive, functions, brain activation older adults MCI remains uncertain. This study aims ascertain whether integration can more efficacious interventions for these outcomes. TaiChi-MSS (Tai Multisensory Stimulation Cognitive Function) a multi-center, randomized controlled trial (RCT) conducted Suzhou Shanghai, enrolling 88 participants aged 60 years or MCI. Participants will be randomly assigned one four groups: Chi, multisensory stimulation, control. intervention last 6 months, follow-up assessments at 3, 6, 9 months. Primary outcomes include assessments, assessed using Montreal Assessment (MoCA), Mini-Mental State Examination (MMSE), domain-specific tests, Pure Tone Audiometry (PTA), Sniffin' Sticks Odor Identification Test. Secondary involve activation, measured through functional Magnetic Resonance Imaging (fMRI) scans. fMRI used assess structure connectivity changes, focusing neuroplasticity. Data analyzed mixed-effects models. False Discovery Rate (FDR) correction method multiple comparisons control expected proportion false positives. was approved ethics committee Shanghai University Sport (No. 102772023RT200). results this disseminated peer-reviewed journals presented academic conferences.

Язык: Английский

Процитировано

0

Sensory and motor deficits as contributors to early cognitive impairment DOI Creative Commons
Zahra N. Sayyid, Hang Wang, Yurun Cai

и другие.

Alzheimer s & Dementia, Год журнала: 2024, Номер 20(4), С. 2653 - 2661

Опубликована: Фев. 20, 2024

Abstract INTRODUCTION Age‐related sensory and motor impairment are associated with risk of dementia. No study has examined the joint associations multiple measures on prevalence early cognitive (ECI). METHODS Six hundred fifty participants in Baltimore Longitudinal Study Aging completed function tests. The association between ECI was using structural equation modeling three latent factors corresponding to multisensory, fine motor, gross function. RESULTS fine, were all correlated ( r = 0.74 0.81). odds lower for each additional unit improvement multisensory (32%), (30%), (12%). DISCUSSION relationship emerging may guide future intervention studies aimed at preventing and/or treating ECI. Highlights Sensorimotor (ECI) assessed via modeling. degree is indicators also

Язык: Английский

Процитировано

4

Motor abilities and cognitive performance in Latinos with autosomal dominant Alzheimer's disease DOI Creative Commons
Andrew J. Petkus, Anup N. Sonti,

Lucy Montoya

и другие.

The Journal of Prevention of Alzheimer s Disease, Год журнала: 2025, Номер 12(1), С. 100010 - 100010

Опубликована: Янв. 1, 2025

Declining motor abilities might be a noninvasive biomarker for Alzheimer's disease (AD). Studying ability and AD progression in younger Latinos with autosomal dominant (ADAD) can provide insights into the interplay between cognition individuals minimal confounding from age-normative changes comorbid medical conditions. This study aimed to (1) examine as function of years dementia diagnosis (2) associations cognitive performance. was cross-sectional observational study. The took place at University Southern California. 39 predominately Latino (mean age 38.6 ± 10 old) known carry (carriers; n=25) or 50% risk inheriting ADAD but not carrying mutation (noncarriers; n=14). Individuals completed batteries National Institute Health Toolbox (NIHTB) Cognitive Abilities Screening Instrument (CASI). All models included effects age, education, primary language, sex. Compared noncarriers, carriers had significantly weaker grip strength 12 years, worse manual dexterity slower gait speed seven before expected diagnosis. Worse associated more severe stage CASI performance, adjusting demographic clinical variables. findings support utility precisely strength, dexterity, potential biomarkers preclinical AD.

Язык: Английский

Процитировано

0

Mechanical load conditions the spectrin network to `run-on' proteolysis and promotes early onset neurodegeneration DOI Creative Commons

Nawaphat Malaiwong,

Anne-Kristin Dahse,

Li-Chun Lin

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 4, 2024

The correct homeostasis of the neuronal cytoskeleton and its dynamics is important for health disease. Forces constantly act on neurons in our body, leading to subtle axonal deformations length changes. spectrin known as a key player that protects against mechanical damage. How changes with age how it influences mechanoprotection aging animals not well understood. Using an interdisciplinary approach, we show causes loss proprioception during first few days adulthood C. elegans via unfolding, tension degradation cytoskeleton. Guided by proteomic screen identify potential binding partners, found this early-onset neurodegeneration can be suppressed clp-1 mutants targeted expression engineered chaperone derived from human α B-crystallin. Our data suggest sensitized proteolytic damage calcium-sensitive proteases when stresses conspires high-calcium concentrations proprioceptive signaling. These results may have implications etiology diseases which high calcium stress co-incide.

Язык: Английский

Процитировано

1