Publications by authors named "SiYi Chen"

Importance: Patients who undergo total laryngectomy lose the voice function permanently. It is important to reconstruct the voice function of the patients after total laryngectomy.

Objective: To explore a novel method for voice rehabilitation by suturing infrahyoid myocutaneous flaps to the hypopharyngeal and esophageal serosas after total laryngectomy and investigate its clinical efficacy.

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Introduction: This study describes and analyzes the distribution of fall cases documented in the National Injury Surveillance System (NISS) from 2019 to 2022.

Methods: Fall data from the NISS (2019-2022) were descriptively analyzed by gender and age.

Results: The NISS in China reported 2,324,577 fall cases from 2019 to 2022.

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Background: Over time, there have been significant changes in the dietary patterns of the Chinese population with the emergence of ultra-processed foods (UPFs).

Methods: To ascertain the changes in UPFs intake among adults in southern China, over the past two decades, the study included residents aged 18 years and older who participated in the China National Nutrition Surveys in Guangdong province in 2002, 2012, and 2022. Dietary intake data were collected via three-day 24 h dietary recalls and weighing household foods and condiments.

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To analyze performance in cloud computing, some unpredictable perturbations that may lead to performance degradation are essential factors that should not be neglected. To prevent performance degradation in cloud computing systems, it is reasonable to measure the impact of the perturbations and propose a robust configuration strategy to maintain the performance of the system at an acceptable level. In this article, unlike previous research focusing on profit maximization and waiting time minimization, our study starts with the bottom line of expected performance degradation due to perturbation.

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Background: Due to the high prevalence of myopia, there is a growing need for the identification of myopia intervention mechanisms and targets. Metabolomics has been gradually used to investigate changes in myopia tissue metabolites over the last few years, but the potential physiological and pathological roles of amino acids and their downstream metabolites discovered by metabolomics in myopia are not fully understood.

Aim Of Review: Aim to explore the possible relationship between amino acid metabolism and the occurrence and development of myopia, we collected a total of 21 experimental studies related to myopia metabolomics.

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Constipation is a common and prevalent digestive system disease in clinical practice, which seriously affects human physical and mental health. Currently, chemical drugs have good short-term therapeutic effects. However, because of their adverse reactions, easy recurrence after drug discontinuation, and dependence with long-term use, the long-term efficacy is unsatisfactory.

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Perfluorohexane sulfonate (PFHxS) has been listed as a new persistent organic pollutant since 2022. Although the production and use of PFHxS are now restricted, it remains highly persistent in aquatic environments for decades. However, so far research about the toxic effects on early-life exposure of PFHxS and underlying mechanisms are still limited.

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A cascade cyclization reaction comprising two halogenation reactions and a Michael addition was developed for the synthesis of chromeno[2,3-]pyrrole-3-ones . Additionally, another cascade cyclization reaction, which involves a halogenation reaction followed by two intramolecular Michael additions, was established for the synthesis of chromeno[2,3-]pyrrole-2-ones . Both types of compounds were synthesized from -hydroxyphenyl enaminones and 2-halo--alkyloxyacetamides through a process that facilitated the intramolecular formation of C-C, C-O, and C-N bonds to effectively establish two fused rings in a single operation.

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globalization and population mobility have increased the spread of infectious diseases and challenged public health security. This paper proposes a complex network epidemic model with nonlinear incidence rate and quadratic transmission. The Turing pattern, sensitivity analysis and parameter identification of the epidemic model under different network structures are studied; METHODS:: this paper discusses the Turing pattern of the model under different network structures, and identifies the key parameters of the model through sensitivity analysis.

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  • There is a significant need for better animal models to study heart failure with preserved ejection fraction (HFpEF), as current models do not adequately represent the condition and hinder research on treatments.
  • A new model using older female sheep with chronic hypertension was developed, showing key characteristics of HFpEF, such as higher blood pressure and signs of heart dysfunction without obvious systolic impairment.
  • This sheep model also exhibited decreased exercise capacity, making it a promising tool for further research to understand HFpEF and potentially improve therapy options.
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  • The study investigates how exposure to particulate matter (PM2.5) throughout different life stages influences the risk of developing prediabetes and diabetes in adults, highlighting the urban health challenge of air pollution.
  • It involved 4,551 participants from Taiwan and Hong Kong, assessing PM2.5 exposure using satellite data and linking it to medical visits over nearly 10 years.
  • Results showed that each increase of 10 μg/m3 in PM2.5 exposure was associated with higher odds of prediabetes/diabetes, with exposure during adulthood posing a slightly greater risk than exposure during earlier life stages.
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Biallelic mutations in PIGK cause GPI biosynthesis defect 22 (GPIBD22), characterized with developmental delay, hypotonia, and cerebellar atrophy. The understanding of the underlying causes is limited due to the lack of suitable disease models. To address this gap, we generated a mouse model with PIGK deficits, specifically in Purkinje cells (Pcp2-cko) and an induced pluripotent stem cell (iPSC) model using the c.

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  • Glycerophosphocholine (GPC) is a metabolite related to choline in cells and has been considered a potential supplement for brain health, but high choline intake may lead to TMAO production, linked to atherosclerosis.
  • This study investigates how GPC is absorbed and metabolized by the intestine, showing that it converts to choline and is transported into cells.
  • Researchers highlighted the enzyme Gpcpd1, which regulates this conversion and TMAO levels, with experiments indicating that its absence alters GPC metabolism and lowers TMAO in the bloodstream.
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Anaerobic digestion (AD) is a promising technology for achieving both organic wastes treatment and energy recovery. However, challenges such as ammonia inhibition still remain. Quorum sensing (QS) system is relevant with the regulation of microbial community behaviors by releasing and sensing signal molecules, which could improve methane production during AD process.

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  • Mesenchymal stem cells (MSCs) are promising for regenerative therapies, but their natural aging (senescence) limits the quantity and quality available for treatment.* -
  • A new culture plate made from a piezoelectric β-poly(vinylidene fluoride) film was developed, which effectively combats MSC senescence and improves important markers related to their quality and functioning.* -
  • This innovative method not only enhances MSC properties for potential clinical use but also supports better wound healing in experimental models by rejuvenating the cells through improved mitochondrial function.*
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Targeting signaling pathways that drive cancer cell migration or proliferation is a common therapeutic approach. A popular experimental technique, the scratch assay, measures the migration and proliferation-driven cell closure of a defect in a confluent cell monolayer. These assays do not measure dynamic effects.

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Estrogen receptor-positive (ER+) breast cancer commonly disseminates to bone marrow, where interactions with mesenchymal stromal cells (MSCs) shape disease trajectory. We modeled these interactions with tumor-MSC co-cultures and used an integrated transcriptome-proteome-network-analyses workflow to identify a comprehensive catalog of contact-induced changes. Conditioned media from MSCs failed to recapitulate genes and proteins, some borrowed and others tumor-intrinsic, induced in cancer cells by direct contact.

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  • T cells and their receptors (TCRs) are crucial for the adaptive immune system and understanding their diversity can enhance insights into immune responses and therapies.
  • TCR repertoire research has few online tools available, which motivated the development of TCRosetta, a versatile online server for analyzing and visualizing TCR data.
  • TCRosetta offers various analytical methods and can process about 20,000 TCR sequences in under 3 minutes, making it the most comprehensive and user-friendly TCR analysis tool currently available online for free.
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Background: Developing anti-obesity interventions targeting appetite or food intake, the primary driver of obesity, remains challenging. Here, we demonstrated that dietary γ-aminobutyric acid (GABA) with GABA-degradation inhibitory drugs could be an anti-obesity intervention possessing strong food intake-suppressive and weight-loss effects.

Methods: High-fat (HF)-diet-induced obese mice were divided into six groups receiving either the HF diet or the 2% GABA-HF diet with daily administration of PBS or the GABA-degradation inhibitory drugs, vigabatrin and ethanolamine-O-sulfate (EOS).

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  • MRI radiomics is being studied to classify breast cancer based on HER2 expression levels (HER2-zero, HER2-low, HER2-positive), but understanding how predictions are made is still limited.
  • Researchers developed machine-learning models using multiparametric MRI data from 737 breast cancer patients to differentiate between HER2 expression levels, employing SHAP analysis for interpretability.
  • Model performance showed promise, particularly with the combined model achieving an AUC of 0.762 for task 1, and SHAP analysis highlighted the significance of early-phase dynamic contrast-enhanced imaging features in the predictions.
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Herein, an efficient, base catalyzed cascade vinylogous Michael/Michael cycloaddition reaction of α-alkylidene succinimides and oxindole-derived pyrazolones has been successfully developed. A variety of highly functionalized cyclopentanes fused with spirooxindoles were obtained in good yields, with excellent diastereoselectivities and exclusive vinylogous site-selectivities. This strategy represents the first example of α-alkylidene succinimides serving as nucleophilic reagents to trigger a vinylogous cascade reaction.

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  • Surgeons face challenges in restoring facial contours, and this study investigates the use of augmented reality (AR) technology to improve the accuracy of facial soft tissue defect reconstruction.
  • The study involved 20 cases assigned to two groups: one using AR guidance for fat grafting, while the other relied on traditional methods; results were evaluated based on accuracy and procedure time.
  • The AR-assisted group showed significantly better accuracy (2.09 mm error) and shorter procedure time (25.45 min) compared to the conventional group (3.23 mm error and 37.05 min), highlighting the benefits of AR in craniofacial surgery.
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