Publications by authors named "Jianqi Chen"

Purpose: Observational studies have suggested a link between coronavirus disease 2019 (COVID-19) and increased risk for primary angle-closure glaucoma (PACG). However, these studies may be influenced by bias. We explored the potential causal relationship between host susceptibility to COVID-19 and its severity, and the risk for developing PACG.

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Purpose: Primary open-angle glaucoma (POAG) is a leading cause of permanent blindness. Although body mass index (BMI) has been proposed as a factor associated with POAG, existing findings are inconsistent. Systematic investigations into early life body size trajectories and their association with POAG remain limited.

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Background: Glaucoma causes permanent blindness. Current treatments have limited effectiveness, necessitating novel therapeutic strategies. We aimed to identify potential drug targets for glaucoma by integrating multi-trait and multi-omic analyses.

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Purpose: Allergic conjunctivitis (AC) is a prevalent ocular inflammatory condition. In this study, we aimed to identify novel therapeutic targets for AC by integrating druggable proteomic analyses.

Methods: We sourced druggable protein abundance data from quantitative trait loci studies, including the deCODE Genetics Consortium (discovery) and UK Biobank Pharma Proteomics Project (replication).

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Purpose: Genome-wide association studies have identified numerous loci associated with POAG. However, functional insights remain limited owing to challenges from noncoding regions and complex linkage disequilibrium. We aimed to bridge these gaps in POAG by integrating genomic and multitissue transcriptomic data and identifying novel systemic regulatory genes.

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Purpose: This study aims to examine the trends in the burden of visual impairment across Asia from 1990 to 2021 and to project the burden through 2040.

Methods: This population-based study used data from the latest Global Burden of Disease 2021 study. Prevalence and years lived with disability (YLDs) were the main outcomes.

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Purpose: To elucidate the relationship between diabetic retinopathy (DR) and frailty and investigate genetic correlations and causality.

Methods: We analyzed data from the US National Health and Nutrition Examination Survey, which included 1003 individuals with diabetes. DR was evaluated via nonmydriatic retinal imaging, and frailty was measured using a 49-item frailty index.

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Purpose: Visual impairment (VI) in working-age individuals significantly impacts public health and the economy. However, the avoidable causes, defined as cataract and refraction disorders, have not been extensively investigated. This study aims to quantify global trends, inequalities, and projections for avoidable VI among this demographic.

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Mitochondrial dysfunction is linked to age-related macular degeneration (AMD), but its mechanisms and related molecular networks remain unclear. We explored the association between mitochondrial-related genes and AMD by integrating multiomic data. We acquired summary-level data on mitochondrial-related protein abundance, gene expression, and gene methylation from quantitative trait locus studies.

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Background: Despite the significant impact of blindness on the affected individuals' quality of life, its burden has not been assessed according to temporal cause-specific changes in severity, impeding our ability to evaluate the impact of blindness on population health accurately. Therefore, we aimed to comprehensively quantify the changes in cause-specific blindness burden according to changes in disease severity for 18 causes of blindness.

Methods: For this cross-sectional population-based study, we derived data on prevalence, disability-adjusted life-years (DALYs), and population size between 1990 and 2019 from the Global Burden of Disease 2019 study.

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Many existing adversarial attacks generate -norm perturbations on image RGB space. Despite some achievements in transferability and attack success rate, the crafted adversarial examples are easily perceived by human eyes. Towards visual imperceptibility, some recent works explore unrestricted attacks without -norm constraints, yet lacking transferability of attacking black-box models.

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Background: Retinoblastoma is considered a lethal but curable malignancy often presenting in childhood. We investigated its global, regional, and national burden among infants and young children from 1990 to 2021.

Methods: We obtained data on retinoblastoma incidence, prevalence, mortality, and disability-adjusted life years (DALYs) from the Global Burden of Diseases, Injuries, and Risk Factors Study 2021.

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Purpose: Increased frailty in older individuals increases health risks, but its relationship with glaucoma, the leading cause of irreversible blindness in middle-aged and older adults, is unclear. We investigated the association between frailty and glaucoma in a large-scale representative sample and explored possible causal relationships.

Design: Combined cross-sectional and Mendelian randomization (MR) study.

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Purpose: The purpose of this study was to define the normal range of peripapillary retinal nerve fiber layer (pRNFL), macular ganglion cell layer (mGCL), and macular inner plexiform layer (mIPL) thickness in cynomolgus macaques, and explore their inter-relationship and correlation with age, refractive errors, and axial length (AL).

Methods: In this cross-sectional study, we measured biometric and refractive parameters, and pRNFL/mGCL/mIPL thickness in 357 healthy cynomolgus macaques. Monkeys were divided into groups by age and spherical equivalent (SE).

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The immune-suppressive microenvironment of solid tumors is a key factor limiting the effectiveness of immunotherapy, which seriously threatens human life and health. Ferroptosis and apoptosis are key cell-death pathways implicated in cancers, which can synergistically activate tumor immune responses. Here, we developed a multifunctional composite hydrogel (CE-Fc-Gel) based on the self-assembly of poloxamer 407, cystamine-linked ιota-carrageenan (CA)-eicosapentaenoic acid (EPA), and ferrocene (Fc).

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Glaucoma is the leading cause of irreversible blindness worldwide. Previous observational studies have suggested a relationship between central corneal thickness (CCT) and glaucoma; however, the results are inconsistent. This study aimed to investigate whether CCT is associated with a risk for developing open-angle glaucoma (OAG).

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Objectives: This study aimed to quantitatively evaluate optic nerve head and retinal vascular parameters in children with hyperopia in relation to age and spherical equivalent refraction (SER) using artificial intelligence (AI)-based analysis of colour fundus photographs (CFP).

Methods And Analysis: This cross-sectional study included 324 children with hyperopia aged 3-12 years. Participants were divided into low hyperopia (SER+0.

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Aims: Elevated fasting plasma glucose (FPG) levels have been associated with visual impairment. Recognising global patterns of high FPG level exposure can facilitate the prevention and treatment of related visual impairment. We aimed to assess the trends of the visual impairment burden attributable to high FPG levels globally, regionally, nationally, and by income level.

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Purpose: Aztreonam/avibactam is effective against serious infections caused by Gram-negative bacteria including Enterobacterales harboring metallo-β-lactamases. While the utility of this combination has been established in vitro and in clinical trials, the purpose of this study is to enhance our understanding of the underlying mechanism responsible for their activities through metabolomic profiling of a multidrug-resistant Escherichia coli clinical isolate.

Methods: Metabolomic analyses of time-dependent changes in endogenous bacterial metabolites in a clinical isolate of a multidrug-resistant E.

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Article Synopsis
  • Cataract, glaucoma, and age-related macular degeneration (AMD) are significant causes of vision impairment, with their impact expected to grow as the global population ages.
  • A study using data from the Global Burden of Disease Study 2019 analyzed age-standardized prevalence rates (ASPRs) for these conditions, revealing varying trends in different regions.
  • While visual impairment from glaucoma and AMD decreased globally from 1990 to 2019, cataract-related impairment rose, particularly in high-middle SDI regions, indicating that targeted treatment and prevention efforts are needed for certain demographics.
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Increased cellular senescence burden contributes in part to age-related organ dysfunction and pathologies. In our study, using mouse models of natural aging, we observed structural and functional decline in the aged retina, which was accompanied by the accumulation of senescent cells and senescence-associated secretory phenotype factors. We further validated the senolytic and senomorphic properties of procyanidin C1 (PCC1) both in vitro and in vivo, the long-term treatment of which ameliorated age-related retinal impairment.

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Investigating the relationship of soil aggregate stability with the organic carbon in the aggregate and its response to land use change is conducive to the estimation of soil carbon sink potential, improvement of rocky desertification, and rational land use in karst areas of Southwest China. In order to explore the effects of land use change on the composition and stability of soil aggregate stability as well as the content of aggregate organic carbon, the soil (0-30 cm) of five land use types (secondary forest, pomelo forest, paddy field, pepper forest, and dry land) was selected as the research object. The characteristics and correlation of soil aggregate components and organic carbon under different land use patterns were obtained, and the contribution of soil aggregates to the change in organic carbon after land use change was calculated.

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Purpose: To characterize the fundus tessellated density (FTD) in highly myopic glaucoma (HMG) and high myopia (HM) for discovering early signs and diagnostic markers.

Methods: This retrospective cross-sectional study included hospital in-patients with HM (133 eyes) and HMG (73 eyes) with an axial length ≥26 mm at Zhongshan Ophthalmic Center. Using deep learning, FTD was quantified as the average exposed choroid area per unit area on fundus photographs in the global, macular, and disc regions.

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Article Synopsis
  • Retinopathy of prematurity (ROP) is a major avoidable cause of vision problems in children, and its impact is increasing due to more premature infants surviving globally.
  • A study analyzing data from 1990 to 2019 found that the prevalence of ROP-related visual impairment rose significantly, especially in developed regions, despite some improvements in health equity over time.
  • The findings highlight the need for targeted interventions in neonatal care, as some less-developed countries showed better outcomes than wealthier ones, pointing to potential gaps in healthcare delivery.
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The composition of soil organic carbon and its stability mechanism are the key to understanding the terrestrial carbon sink capacity. The stability of soil organic carbon in a karst ecosystem greatly affects the soil carbon fixation capacity. In order to understand the impact of human activities on the stability of soil organic carbon in karst areas, the karst valley area of Zhongliang Mountain in Chongqing was selected as an example, and soil samples of four typical land use modes (mixed forest, bamboo forest, grassland, and cultivated land) were collected in layers to analyze the total organic carbon (TOC) and heavy fraction organic carbon (HFOC).

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