Publications by authors named "Bai Chen"

Reactive astrogliosis is a critical process in the development of ischemic stroke. However, the precise mechanism by which reactive astrogliosis changes the pathogenesis of ischemic stroke remains elusive. Sterile alpha and TIR motif-containing 1 protein (SARM1) plays a key role in axonal degeneration and is involved in different cell death programs that regulate neuronal survival.

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Purpose: The purpose of this retrospective cohort analysis was to investigate sex differences in receipt of standard of care sleep and constipation drug treatments among autistic children and youth with sleep disorder and constipation, respectively.

Methods: We used the data from the OneFlorida + Data Trust to analyze healthcare claims for 19,877 autistic patients with sleep disorder and 32,355 patients with constipation, ages 1 to 22. We used logistic regression to examine sex differences in receiving sleep and constipation treatments, and a multivariate logistic regression model to further assess sex differences in ever receiving sleep and constipation treatments, adjusting for age, race, ethnicity, and urbanicity.

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Frailty, an age-related syndrome, is associated with poor post-operative outcomes. The impact of community-level social determinants of health (SDoH) on pre-operative frailty has not been investigated yet. We developed a machine learning model to predict pre-operative frailty using an institutional dataset and applied it to a more geographically diverse population from the OneFlorida+ Clinical Research Consortium.

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Background: The prevalence of adolescent mental health conditions such as depression and anxiety has significantly increased. Despite the potential of machine learning (ML), there is a shortage of models that use real-world data (RWD) to enhance early detection and intervention for these conditions.

Objective: This study aimed to identify depression and anxiety in adolescents using ML techniques on RWD and social determinants of health (SDoH).

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Background: The thalamus plays a pivotal role in functional brain networks, yet its contribution to motor function recovery following stroke remains elusive. We aim to explore changes in thalamocortical functional connectivity poststroke and its correlation with motor function.

Methods: Thirty-nine subacute ischemic stroke patients and 32 healthy individuals underwent resting-state functional magnetic resonance imaging (MRI).

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The elderly face elevated mortality risk due to rising temperature. Previous assessments of temperature-related mortality, however, lack a comprehensive analysis of distinct impacts of temperature change across different timescales and characteristics. Using a longitudinal survey of 27,233 elderly Chinese citizens from 2005 to 2018, we establish connections between rising temperatures, temperature variability, and extreme heat with increased mortality risk, assessed through four annual metrics that combine temperature and humidity.

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The parathyroid hormone type 1 receptor (PTH1R) plays a crucial role in modulating various physiological functions and is considered an effective therapeutic target for osteoporosis. However, a lack of detailed molecular and energetic information about PTH1R limits our comprehensive understanding of its activation process. In this study, we performed computational simulations to explore key events in the activation process, such as conformational changes in PTH1R, Gs protein coupling, and the release of guanosine diphosphate (GDP).

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Background: In patients who underwent off-pump coronary artery bypass grafting (OPCABG), females were reported to have lower rates of in-hospital mortality rate and postoperative atrial fibrillation than males. However, the association between gender and long-term prognosis following OPCABG is rarely reported.

Objective: This study aims to determine if women benefit more from OPCABG than men by comparing the difference in the risk of long-term all-cause mortality in patients with coronary chronic total occlusion (CTO).

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Article Synopsis
  • Transcatheter aortic valve replacement (TAVR) is a treatment for severe aortic stenosis, mainly affecting older adults, requiring accurate frailty assessments for optimal patient selection.* -
  • This study analyzed data from 14,000 patients at the University of Florida to improve frailty prediction for TAVR candidates by combining structured electronic health records and unstructured clinical notes, using advanced modeling techniques.* -
  • The integrated model significantly outperformed those using only electronic health record data, identifying key frailty predictors, which may enhance patient outcomes in TAVR procedures.*
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  • Syncope, or fainting, often affects adolescents and the elderly, leading to a significant number of emergency department visits and healthcare costs as its incidence rises with age.* -
  • A study using data from 2006 to 2019 found that while the incidence of syncope increased, the rate of certain testing types decreased, with women undergoing fewer tests compared to men.* -
  • Despite stable discharge rates from the ED, hospital admissions for patients over 65 increased, indicating a need for more efficient evaluation methods to reduce costs and enhance patient outcomes.*
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Background And Aims: Glutathione peroxidase 4 (GPX4) is a key factor in ferroptosis, which is involved in ischemia-reperfusion injury. However, little is known about its role in hepatic ischemia-reperfusion injury (HIRI). This study aimed to investigate the role of GPX4 methylation in ferroptosis during HIRI.

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Introduction: This study aimed to describe the temporal trends of stroke burden in different age and sex groups in China from 1990 to 2021, including incidence, prevalence, mortality, and disability-adjusted life years (DALYs), and to compare these data with global figures.

Methods: Using data from the Global Burden of Disease database from 1990 to 2021, we analyzed changes in stroke burden in China and globally. The average annual percentage change (AAPC) was calculated using Joinpoint software to reflect trends.

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Article Synopsis
  • Frailty assessment is important for healthcare in older adults, but it's hard to do because it takes time and effort.
  • Using artificial intelligence (AI) and natural language processing (NLP) can help by analyzing real-world data like medical records to assess frailty more easily.
  • The study found 23 articles showing that AI can predict frailty quite well, but more testing is needed to ensure these methods work in real-life situations and improve patient health.
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The tumor microenvironment, particularly the hypoxic property and glutathione (GSH) overexpression, substantially inhibits the efficacy of cancer therapy. In this article, we present the design of a magnetic nanoplatform (MNPT) comprised of a photosensitizer (Ce6) and an iron oxide (FeO)/manganese oxide (MnO) composite nanozyme. Reactive oxygen species (ROS), such as singlet oxygen (O) radicals produced by light irradiation and hydroxyl radicals (·OH) produced by catalysis, are therapeutic species.

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Background: Racial disparities in COVID-19 incidence and outcomes have been widely reported. Non-Hispanic Black patients endured worse outcomes disproportionately compared with non-Hispanic White patients, but the epidemiological basis for these observations was complex and multifaceted.

Objective: This study aimed to elucidate the potential reasons behind the worse outcomes of COVID-19 experienced by non-Hispanic Black patients compared with non-Hispanic White patients and how these variables interact using an explainable machine learning approach.

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Article Synopsis
  • * The study investigated how glycine binding patterns influence GlyR activation and desensitization, focusing on conformational changes in the receptor and energy differences in ion conduction pathways.
  • * The research successfully predicted the effects of mutations in key residues on receptor activation, with a strong correlation between energy barriers and experimental results, enhancing the understanding of GlyR functionality for potential applications in other similar proteins.
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The rise of antibiotic resistance necessitates effective alternative therapies. Antimicrobial peptides (AMPs) are promising due to their broad inhibitory effects. This study focuses on predicting the minimum inhibitory concentration (MIC) of AMPs against whom-priority pathogens: ATCC 25923, ATCC 25922, and ATCC 27853.

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  • ATP-citrate lyase (ACLY) is an important enzyme for metabolism and a potential drug target, but its catalytic mechanism and the role of its subunit symmetry are still unclear.
  • Researchers mapped out the free energy landscape for ACLY's tetramer structure to better understand how its subunits work together during the synthesis of citryl-CoA, noting that it faces three key conformational barriers.
  • Their findings indicate that changes in the shape of the ACLY enzyme are energetically linked to its biochemical reactions, revealing insights that could help in designing inhibitors and understanding its functions more deeply.
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  • - Structured illumination microscopy (SIM) is a powerful super-resolution imaging technique that allows for real-time imaging of live cells, but the traditional methods can struggle with low signal-to-noise ratios (SNR), leading to inaccuracies in image reconstruction.
  • - The study introduces a new method called physics-enhanced neural network-based parameter-free spatial domain reconstruction (PNNP-SDR), which can reconstruct images directly in the spatial domain without needing high-precision parameter estimation.
  • - PNNP-SDR shows significant improvements, with about a 4 dB increase in peak signal-to-noise ratio (PSNR) compared to traditional methods and is approximately five times faster than existing approaches, making it a promising tool for biomedical super-resolution imaging.
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  • This study retrospectively analyzed the treatment of tic disorder (TD) at Dongfang Hospital, aiming to uncover its underlying mechanisms and inform future research and clinical practices.
  • The analysis included medical records of children aged 6 to 11, focusing on treatment patterns that combined traditional Chinese herbal medicines with common synthetic drugs, revealing a core set of prescriptions and their effects on TD.
  • Findings indicated that the proposed treatment regimen, known as regimen Z, utilizes specific herbal ingredients and vitamins, influencing gene expression and immune pathways critical for managing TD symptoms.
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  • The study investigates the effectiveness of Ma Xing Shi Gan Decoction (MXSG), a traditional Chinese medicine, in treating influenza virus-induced pneumonia by focusing on how it influences gut microbiota and lung glycolysis.
  • Using a mouse model, researchers analyzed inflammatory markers, changes in gut bacteria, and metabolic processes in lung tissue after MXSG treatment.
  • Results showed that MXSG reduced harmful gut bacteria, decreased inflammation, suppressed glycolysis in lung tissues, and altered macrophage populations, indicating its potential therapeutic mechanisms in pneumonia management.
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Over-expression (OE) lines for the ER-tethered NAC transcription factor ANAC017 displayed de-repression of gun marker genes when grown on lincomycin (lin). RNA-seq revealed that ANAC017OE2 plants constitutively expressed greater than 40% of the genes induced in wild-type with lin treatment, including plastid encoded genes ycf1.2 and the gene cluster ndhH-ndhA-ndhI-ndhG-ndhE-psaC-ndhD, documented as direct RNA targets of GUN1.

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Background: Mitral valve repair (MVr) is an effective treatment for degenerative mitral regurgitation (DMR).And the outcomes and repair rates for posterior leaflet prolapse (PLP), anterior leaflet prolapse (ALP), and bileaflet prolapse (BLP) vary. This study aimed to compare the outcomes of mitral valve repair for patients with PLP, ALP, and BLP.

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Background: Chat Generative Pre-trained Transformer (ChatGPT) and other ChatBots have emerged as tools for interacting with information in manners resembling natural human speech. Consequently, the technology is used across various disciplines, including business, education, and even in biomedical sciences. There is a need to better understand how ChatGPT can be used to advance gerontology research.

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