Publications by authors named "X-T Hu"

Article Synopsis
  • Cardiac T2 mapping is a diagnostic tool that faces challenges with spatial resolution, which may limit its effectiveness in detecting small heart lesions.
  • This study presents a new cardiac T2 mapping technique using the SCC-LLRT algorithm, validated by tests on both phantoms and human participants, showing improved spatial resolution without increased acquisition time.
  • Results indicated that the new method significantly reduces artifacts and noise while enhancing overall image quality compared to traditional imaging techniques, leading to better-defined images of the myocardium.
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  • A multicenter randomized controlled trial in China investigated the impact of adding coronary CT-derived fractional flow reserve (CT-FFR) to routine coronary CT angiography (CCTA) on the need for invasive coronary angiography (ICA) and major adverse cardiovascular events (MACE) in patients with suspected coronary artery disease (CAD).
  • The study involved 5,297 participants, showing that the CCTA plus CT-FFR group had a lower ICA rate (10.0%) compared to the CCTA alone group (12.4%) over a 90-day follow-up.
  • While MACE rates were similar between groups, the CCTA plus CT-FFR approach resulted in fewer cardiac events after one year (0.5%
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Chicken egg yolk plasma (EYP), the supernatant fraction of egg yolk obtained by water dilution and centrifugation, is a rich source of various bioactive substances and a significant bearer of yolk-emulsifying properties. This study utilized proteomics to conduct a comprehensive and in-depth analysis of both common and modified EYP proteins (phosphorylated proteins and N-glycosylated proteins). Total of 208 proteins were identified in EYP, including 42 phosphorylated proteins with 137 phosphorylation sites and 150 N-glycoproteins with 332 N-glycosylation sites.

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Background And Purpose: After repeat administration of gadolinium-based contrast agents (GBCAs), the association between gadolinium retention in the central and peripheral nervous systems and the main manifestations of myelopathy and progressive neurologic symptoms remains unclear. We investigated the effects of the repeat administration of GBCAs on gadolinium retention in the central and peripheral nervous systems and the sensory, cognitive, and athletic implications.

Materials And Methods: Forty-eight male Wistar rats (6 weeks of age) were randomly divided into 4 experimental groups (12 rats in each group): the gadodiamide group (linear and nonionic GBCAs), the gadopentetate dimeglumine group (linear and ionic GBCAs), the gadoterate meglumine group (macrocyclic and ionic GBCAs), and the control group (0.

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Background: S-Nitrosylation (SNO), a prototypic redox-based posttranslational modification, is involved in cardiovascular disease. Aortic aneurysm and dissection are high-risk cardiovascular diseases without an effective cure. The aim of this study was to determine the role of SNO of Septin2 in macrophages in aortic aneurysm and dissection.

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Background: Adverse pregnancy outcomes (APOs) share clinical features and risk factors with cardiovascular disease and there is an increasing prevalence of hypertension among reproductive women. However, the associations between maternal preconception blood pressure (BP) and APOs remain controversial and inconclusive.

Methods: This population-based cohort study used data of 567 127 mother-neonate-father triads from the National Free Preconception Checkup Project in Guangdong Province, China.

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In many disordered systems, the diffusion of classical particles is described by a displacement distribution (, ) that displays exponential tails instead of Gaussian statistics expected for Brownian motion. However, the experimental demonstration of control of this behavior by increasing the disorder strength has remained challenging. In this work, we explore the Gaussian-to-exponential transition by using diffusion of poly(ethylene glycol) (PEG) in attractive nanoparticle-polymer mixtures and controlling the volume fraction of the nanoparticles.

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Rationale And Objectives: To develop an intelligent diagnostic model for osteoporosis screening based on low-dose chest computed tomography (LDCT). The model incorporates automatic deep-learning thoracic vertebrae of cancellous bone (TVCB) segmentation model and radiomics analysis.

Materials And Methods: A total of 442 participants who underwent both LDCT and quantitative computed tomography (QCT) examinations were enrolled and were randomly allocated to the training, internal testing, and external testing cohorts.

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Background: The cardiac-protective role of GSNOR (S-nitrosoglutathione reductase) in the cytoplasm, as a denitrosylase enzyme of S-nitrosylation, has been reported in cardiac remodeling, but whether GSNOR is localized in other organelles and exerts novel effects remains unknown. We aimed to elucidate the effects of mitochondrial GSNOR, a novel subcellular localization of GSNOR, on cardiac remodeling and heart failure (HF).

Methods: GSNOR subcellular localization was observed by cellular fractionation assay, immunofluorescent staining, and colloidal gold particle staining.

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Background: The effects of the glycoprotein IIb/IIIa receptor inhibitor tirofiban in patients with acute ischemic stroke but who have no evidence of complete occlusion of large or medium-sized vessels have not been extensively studied.

Methods: In a multicenter trial in China, we enrolled patients with ischemic stroke without occlusion of large or medium-sized vessels and with a National Institutes of Health Stroke Scale score of 5 or more and at least one moderately to severely weak limb. Eligible patients had any of four clinical presentations: ineligible for thrombolysis or thrombectomy and within 24 hours after the patient was last known to be well; progression of stroke symptoms 24 to 96 hours after onset; early neurologic deterioration after thrombolysis; or thrombolysis with no improvement at 4 to 24 hours.

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Accurate prediction of infinite dilution activity coefficient (γ) is essential for the calculation of phase equilibria, solubility, and related properties in molecular thermodynamics. Here, we propose a new model to accurately predict the value of γ. It is applicable to calculate γ for compounds in aqueous solution at different temperatures.

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Article Synopsis
  • * A virtual 3-day hackathon brought together 49 early-career scientists from 12 countries, focusing on building tools and pipelines specifically for PD research, with each team working on one of nine distinct projects.
  • * The hackathon not only generated resources to enhance research but also provided training and networking opportunities, ultimately fostering creative problem-solving and collaboration essential for emerging researchers in data science.
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SARS-CoV-2 Omicron variants feature highly mutated spike proteins with extraordinary abilities in evading antibodies isolated earlier in the pandemic. Investigation of memory B cells from patients primarily with breakthrough infections with the Delta variant enables isolation of a number of neutralizing antibodies cross-reactive to heterologous variants of concern (VOCs) including Omicron variants (BA.1-BA.

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Background: High blood pressure (BP) is highly prevalent in patients with chronic kidney disease. However, the thresholds to initiate BP-lowering treatment in this population are unclear. We aimed to examine the associations between BP levels and clinical outcomes and provide evidence on potential thresholds to initiate BP-lowering therapy in people with chronic kidney disease.

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Article Synopsis
  • The study investigates the relationship between blood pressure (systolic and diastolic) and cardiovascular disease (CVD) specifically in individuals without major cardiovascular risk factors.
  • A large cohort of 36,042 participants was analyzed, focusing on those with optimal glycemic and lipid profiles, over a follow-up period to assess the development of CVD.
  • Results showed a significant linear increase in CVD risk for higher blood pressure levels, with specific hazard ratios indicating increased risk associated with certain systolic (110-139 mm Hg) and diastolic (80-89 mm Hg) blood pressure ranges compared to lower levels.
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Small molecule kinase inhibitors (SMKIs) are being approved at a fast pace under expedited programs for anticancer treatment. In this study, we construct a multi-domain dataset from a total of 4638 patients in the registrational trials of 16 FDA-approved SMKIs and employ a machine-learning model to examine the relationships between kinase targets and adverse events (AEs). Internal and external (datasets from two independent SMKIs) validations have been conducted to verify the usefulness of the established model.

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Cardiovascular diseases are the most common cause of death globally. Accurately modeling cardiac homeostasis, dysfunction, and drug response lies at the heart of cardiac research. Adult human primary cardiomyocytes (hPCMs) are a promising cellular model, but unstable isolation efficiency and quality, rapid cell death in culture, and unknown response to cryopreservation prevent them from becoming a reliable and flexible in vitro cardiac model.

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The problem of deep oxidation of low concentrations of VOCs in industrial tail gas is exceptionally urgent. The preparation of VOCs ozonation catalyst with a high mineralization rate is still a challenge. In this paper, manganese oxide carriers with different morphologies were synthesized by simple methods and used to catalyze ozone mineralization of toluene after loading Pt nanoparticles efficiently.

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Research Question: What is the genetic cause of multiple congenital disabilities in a girl with a maternal balanced X-autosome translocation [t(X-A)]? Is preimplantation genetic testing (PGT), to distinguish non-carrier from euploid/balanced embryos and prioritize transfer, an effective and applicable strategy for couples with t(X-A)?

Design: Karyotype analysis, whole-exome sequencing and X inactivation analysis were performed for a girl with congenital cardiac anomalies, language impairment and mild neurodevelopmental delay. PGT based on next-generation sequencing after microdissecting junction region (MicroSeq) to distinguish non-carrier and carrier embryos was used in three couples with a female t(X-A) carrier (cases 1-3).

Results: The girl carried a maternal balanced translocation 46,X,t(X;1)(q28;p31.

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Objective: To investigate the cortical gyrification changes as well as their relationships with white matter (WM) microstructural abnormalities in the akinetic-rigid (AR) and tremor-dominant (TD) subtypes of Parkinson disease (PD).

Methods: Sixty-four patients with the AR subtype, 26 patients with the TD subtype, and 56 healthy controls (HCs) were included in this study. High-resolution T1-weighted and diffusion-weighted images were acquired for each participant.

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Deoxycholic acid (DCA, 3, 12-dihydroxy-5-cholan-24-oic acid) is the major circulating secondary bile acid, which is synthesized by gut flora in the lower gut and selectively oxidized by CYP3A into tertiary metabolites, including 1,3,12-trihydroxy-5-cholan-24-oic acid (DCA-1-ol) and 3,5,12-trihydroxy-5-cholan-24-oic acid (DCA-5-ol) in humans. Since DCA has the similar exogenous nature and disposition mechanisms as xenobiotics, this work aimed to investigate whether the tertiary oxidations of DCA are predictive of in vivo CYP3A activities in beagle dogs. In vitro metabolism of midazolam (MDZ) and DCA in recombinant canine CYP1A1, 1A2, 2B11, 2C21, 2C41, 2D15, 3A12, and 3A26 enzymes clarified that CYP3A12 was primarily responsible for either the oxidation elimination of MDZ or the regioselective oxidation metabolism of DCA into DCA-1-ol and DCA-5-ol in dog liver microsomes.

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It is very desirable to develop advanced sustainable biomedical materials with superior biosafety and bioactivity for clinical applications. Herein, biomass-derived multilayer-structured absorbable microparticles (MQ T ) composed of starches and plant polyphenols are readily constructed for the safe and effective treatment of bone defects with intractable bleeding by coating multiple layers of quaternized starch (Q) and tannic acid onto microporous starch microparticles via facile layer-by-layer assembly. MQ T microparticles exhibit efficient degradability, low cytotoxicity, and good blood compatibility.

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Article Synopsis
  • Treatments for gastric cancer (GC) in younger patients (18-49) are under-researched; this study examines chemotherapy use across different age groups and its impact on survival.
  • Younger patients are more likely to receive chemotherapy compared to older ones, but better overall survival rates were observed in younger and middle-aged patients who had surgery alone, indicating possible over-prescription of chemotherapy in these groups.
  • Interestingly, older patients (65-85) derived greater survival benefits from chemotherapy, especially in advanced stages of the disease, highlighting discrepancies in treatment effectiveness based on age.
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Objective: To explore the genetic basis for a patient with premature ovarian insufficiency.

Methods: Chromosomal G-banding and C-banding, single nucleotide polymorphism array (SNP-array), fluorescence in situ hybridization (FISH) and Y chromosome microdeletion assay were used for the analysis.

Results: With the combined techniques, the patient was found to carry a Xq;Yq translocation, with a karyotype of 46,X,der(X)t(X;Y)(q25;q12).

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MXenes represent a family of surface-functionalized two-dimensional (2D) carbides and nitrides with potential applications in the field of flexible electronics, which rely on their elasticity and flexibility. However, the knowledge on such aspects is rather limited. Here, taking the four most typical MXenes, namely, TiCT, TiCT, NbCT and NbCT (T = O, OH and F) as examples, we evaluate their intrinsic in-plane stiffness and out-of-plane rigidity at the nanoscale with respect to their functional groups, chemical components and thickness by first-principles calculations.

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