Publications by authors named "Lingzhi Ma"

Background: Periodontitis (PD) is a common chronic inflammatory oral disease that severely affects patients' quality of life. Fisetin has been shown to possess antioxidant and anti-inflammatory properties in various biological systems.

Methods: This study first identified the molecular targets of fisetin for PD through network pharmacology analysis.

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Background: This study investigated the relationship between Life's Essential 8 (LE8), a recently updated lifestyle-related health factor, and cognition across multiple life stages.

Methods: We enrolled 1098 cognitively normal participants from the Chinese Alzheimer's Biomarker and Lifestyle (CABLE) study. We investigated the interactions between age and LE8 on cognition.

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Background: The correlation between Alzheimer's disease (AD) and the glucose-triglyceride (TyG) index remains undetermined.

Objective: This study aimed to investigate the relationship between the TyG index and AD, as well as the relationship between the TyG index and cerebrospinal fluid (CSF) AD biomarkers and cognition.

Methods: Six hundred twenty-eight non-dementia participants were included.

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A thorough understanding and identification of potential determinants leading to frailty are imperative for the development of targeted interventions aimed at its prevention or mitigation. We investigated the potential determinants of frailty in a cohort of 469,301 UK Biobank participants. The evaluation of frailty was performed using the Fried index, which encompasses measurements of handgrip strength, gait speed, levels of physical activity, unintentional weight loss, and self-reported exhaustion.

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Aims: Brain structural alterations begin long before the presentation of brain disorders; therefore, we aimed to systematically investigate a wide range of influencing factors on neuroimaging markers of brain health.

Methods: Utilizing data from 30,651 participants from the UK Biobank, we explored associations between 218 modifiable factors and neuroimaging markers of brain health. We conducted an exposome-wide association study using the least absolute shrinkage and selection operator (LASSO) technique.

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Background: Tongue squamous cell carcinoma (TSCC) represents the most prevalent form of head and neck squamous cell carcinomas, comprising approximately one-third of all oral cancers. Paris polyphylla(PP) exhibit promising anti-tumor properties, yet their underlying mechanisms remain elusive. This study offers novel insights into the molecular mechanisms underlying TSCC treatment with PP and establishes a theoretical basis for their clinical application.

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Background: The relationship between Alzheimer's disease (AD)-related pathology and cognition was not exactly consistent.

Objective: To explore whether the association between AD pathology and cognition can be moderated by frailty.

Methods: We included 1711 participants from the Alzheimer's Disease Neuroimaging Initiative database.

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Article Synopsis
  • Alzheimer's disease (AD) has complex genetics largely studied in European populations, but this study involved a GWAS with 6,878 Chinese and 63,926 European individuals to explore new genetic links to AD.
  • The research identified three new susceptibility loci (KIAA2013, SLC52A3, and TCN2) in Chinese participants and highlighted a unique variant (rs1815157) within EGFR.
  • The findings suggest that including diverse populations is key for understanding AD's genetic basis and show that high mean corpuscular hemoglobin concentration could offer some protection against the disease.
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Considerable uncertainty remains regarding the associations of multiple factors with brain health. We aimed to conduct an exposome-wide association study on neurodegenerative disease and neuropsychiatry disorders using data of participants from the UK Biobank. Multivariable Cox regression models with the least absolute shrinkage and selection operator technique as well as principal component analyses were used to evaluate the exposures in relation to common disorders of central nervous system (CNS).

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Physical frailty and genetic factors are both risk factors for increased dementia; nevertheless, the joint effect remains unclear. This study aimed to investigated the long-term relationship between physical frailty, genetic risk, and dementia incidence. A total of 274,194 participants from the UK Biobank were included.

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Background: Frailty is a vulnerability state increasing the risk of many adverse health outcomes, but little is known about the effects of frailty on neuropsychiatric health.

Objective: To explore the associations between frailty and the risk of neuropsychiatric symptoms (NPSs) in Alzheimer's disease (AD), especially in its different clinical stages.

Methods: We included 2,155 individuals assessed using modified frailty index-11 (mFI-11), Neuropsychiatric Inventory (NPI) and Neuropsychiatric Inventory Questionnaire (NPI-Q) in the Alzheimer's Disease Neuroimaging Initiative (ADNI).

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Background: Dementia is a major public health issue and a heavy economic burden. It is urgently necessary to understand the underlying biological processes and to identify biomarkers predicting risk of dementia in the preclinical stage for prevention and treatment.

Methods: By using the data of the 367,093 white British individuals from UK Biobank, we investigated the relationship between 56 laboratory measures and 5-year dementia incidence using logistic regression.

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Photodynamic therapy (PDT), as an emerging cancer treatment, requires the development of highly desirable photosensitizers (PSs) with integrated functional groups to achieve enhanced therapeutic efficacy. Coordination-driven self-assembly (CDSA) would provide an alternative approach for combining multiple PSs synergistically. Here, we demonstrate a simple yet powerful strategy of combining conventional chromophores (tetraphenylethylene, porphyrin, or Zn-porphyrin) with pyridinium salt PSs together through condensation reactions, followed by CDSA to construct a series of novel metallo-supramolecular PSs (S1-S3).

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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.

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Cardiovascular health (CVH) is a well-known predictor of morbidity and mortality, while phenotypic age (PhenoAge) is a promising biomarker of aging. This study aimed to explore the association between Life's Essential 8 (LE8), a novel CVH measure, and PhenoAge acceleration (PhenoAgeAccel), as well as the potential mediating role of oxidative stress biomarkers in this relationship. A total of 23 896 individuals were included in the National Health and Nutrition Examination Survey database (2005-2018).

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Identifying the clinical implications and modifiable and unmodifiable factors of aging requires the measurement of biological age (BA) and age gap. Leveraging the biomedical traits involved with physical measures, biochemical assays, genomic data, and cognitive functions from the healthy participants in the UK Biobank, we establish an integrative BA model consisting of multi-dimensional indicators. Accelerated aging (age gap >3.

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Article Synopsis
  • The study explores new mRNA vaccine strategies to enhance effectiveness against COVID-19, focusing on specific protein domains of the virus instead of the full-length spike protein.
  • The candidate vaccine mRNA-1283, combining the N-terminal domain and receptor binding domain, shows better antigen expression, stronger antibody responses, and improved stability compared to existing vaccines.
  • In animal tests, mRNA-1283 elicits equal or greater immune protection against various COVID-19 variants, supporting its advancement to clinical trials for further evaluation.
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Evidence of the triglyceride-glucose (TyG) index as an independent predictor of arterial stiffness in stage 1 hypertension patients is scarce. This study aimed to explore the association between TyG index and arterial stiffness in this population. A total of 1041 individuals from 32 centers with normal/elevated blood pressure (BP, <130/80 mmHg; 345 men (33%); median age, 37 years) and 585 stage 1 hypertension patients (BP ≥130/80 and <140/90 mmHg; 305 men (52%); median age, 47 years) were prospectively enrolled.

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Article Synopsis
  • The study explores the use of neurofilament light chain protein (NfL) levels in cerebrospinal fluid (CSF) as a biomarker for monitoring cognitive decline in Parkinson's disease (PD) and its dementia form (PD-D).
  • Researchers analyzed data from 259 participants, focusing on how CSF NfL concentrations correlate with cognitive impairment and decline over time.
  • They found that higher baseline and increasing levels of CSF NfL significantly predicted cognitive decline in patients, especially among certain demographics like older males and those with less education.
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  • Clusterin is a multifunctional protein linked to Alzheimer's disease (AD), with previous studies showing inconsistent cerebrospinal fluid (CSF) levels in AD patients.
  • In our research, we analyzed CSF clusterin levels in 276 participants, categorizing them based on AD biomarkers, and found variations in clusterin levels across different pathological stages of AD.
  • Our results indicate that CSF clusterin levels decrease in early AD stages but increase in later ones, suggesting a positive association with other key AD biomarkers like Aβ, p-tau, and t-tau.
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Background: APOE ɛ4 genotype was correlated with exacerbation of pathology and higher risk of dementia in Parkinson's disease (PD). Meanwhile, the differential influence of APOE ɛ4 on cognition in young and old individuals interpreted as antagonistic pleiotropy.

Objective: To examine whether the effect of APOE ɛ4 on cognitive progression in de novo PD is age dependent.

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Article Synopsis
  • For vaccines to provide long-lasting immunity and effectiveness, they often require a multi-dose schedule that primes the immune system and boosts its response through repeated doses.
  • During the COVID-19 pandemic, 2-dose vaccination regimens were often administered with short intervals to offer quick protection, but studies indicate that longer intervals between doses might enhance immunity durability.
  • Research on the mRNA-1273 vaccine in mice found that intervals of 6 to 8 weeks between doses led to higher antibody levels and stronger immune responses, suggesting that longer dosing intervals could be beneficial in non-pandemic contexts.
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Article Synopsis
  • Researchers developed a new mRNA vaccine, mRNA-1283, targeting specific spike protein domains of the virus responsible for COVID-19.
  • This vaccine demonstrated enhanced antigen expression, antibody responses, and stability when stored in refrigerated conditions compared to the existing mRNA-1273 vaccine.
  • In preclinical tests, mRNA-1283 provided similar or better immune protection against various COVID-19 variants in mice, indicating its potential for human clinical trials.
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Metallacages with suitable cavities and specific functions are promising delivery vectors in biological systems. Herein, we report a morpholine-functionalized metallacage for lysosome-targeted cell imaging. The efficient host-guest interactions between the metallacage and dyes prevent them from aggregation, so their emission in aqueous solutions is well maintained.

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Background: Visual impairment and interventions to preserve vision may impact dementia risk. Thus, we aimed to explore the associations of cataract and cataract surgery with the risk of dementia.

Methods: Prospective data from 300,823 individuals in the UK Biobank were used.

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