Publications by authors named "Liu Xiaoqian"

Objective: To detect phenolic acid compounds in various fruits and explore the differences in phenolic acids among different types of fruits.

Methods: The collected 75 types of fruits were classified into 6 categories: citrus、melon、drupe、berry、tropical fruit and pome fruits. The phenolic acid compounds were detected by high performance liquid chromatography-mass spectrometry.

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Xueshuan Xinmaining Tablets and Capsules are two Chinese patent medicines with the same prescription, different preparation methods but the same function of replenishing Qi, activating blood, opening orifices, and relieving pain. Xueshuan Xinmaining Capsules were qualitatively analyzed by UPLC-Q/TOF-MS for the first time, and 61 compounds were identified, including 9 phenolic acids, 10 bufadienolides, 15 saponins, 5 bile acids, and 22 other compounds. The chemical composition was slightly different between Xueshuan Xinmaining Tablets and Capsules.

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Red yeast rice(RYR) is fermented rice with a long history of medicinal and edible purposes in China. RYR has gained global popularity, particularly in South and Southeast Asia, Europe, and America, due to its blood lipid-lowering effect and abundant edible natural pigments. However, concerns have been aroused regarding the safety of RYR due to increasing reports on the side effects and toxicity associated with statins and mycotoxins in RYR.

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Ganoderma spores are the dry and mature spores of G. lucidum or G. sinense of Polyporaceae, with strong immunity-improving, anti-tumor, and anti-oxidant activities.

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Article Synopsis
  • Exertional heatstroke (EHS) can cause serious harm to the heart and other organs, highlighting the need for effective treatment strategies.
  • This study focused on the impact of L-carnitine (LC) in protecting against cardiac damage and dysfunction caused by EHS in rats, revealing that LC significantly improves heart health by reducing cell death and harmful changes in heart tissue.
  • The protective effects of LC are linked to its ability to inhibit the PERK pathway, which is involved in stress responses in cells, suggesting that LC supplementation may be a promising approach to mitigate heart injury in EHS cases.
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Reversible protein phosphorylation, known as the "switch" of the cell, is controlled by protein kinases (PKs) and protein phosphatases (PPs). Based on substrate specificity, PPs are classified into protein serine/threonine phosphatases and protein tyrosine phosphatases (PTPs). PTPs can dephosphorylate phosphotyrosine and phosphoserine/phosphothreonine.

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  • Bulk deconvolution using single-cell RNA-seq is important for analyzing complex biological samples, but differences in sequencing technology can lead to inaccuracies.
  • The researchers created a new framework called DeMixSC that improves deconvolution by utilizing well-matched benchmark datasets to account for these technological discrepancies.
  • DeMixSC was tested on datasets from healthy retinas and ovarian cancer tissues, showing improved accuracy and the ability to reveal significant biological differences in patient groups, highlighting its usefulness in clinical applications.
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Objective: Investigating the causal relationship between inflammatory cytokines and Non-alcoholic fatty liver disease(NAFLD) and identifying and quantifying the role of serum ferritin as a potential mediator.

Methods: Genetic summary statistics were derived from open genome-wide association study (GWAS) databases. We conducted a two-sample Mendelian randomization (MR) analysis to investigate the relationship between inflammatory cytokines (8,293 individuals) and NAFLD (8,434 cases, 770,180 controls).

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Avermectin B1a, a widely used pesticide, has recently raised safety concerns since it possesses potential cytotoxicity toward mammalian cells. Nevertheless, the exact mechanisms that underlie the cytotoxicity induced by avermectin B1a remain elusive. The loading of the mini-chromosome maintenance 6 protein (MCM6) onto chromatin at replication origins by chromatin licensing and DNA replication factor 1 (CDT1) is an essential step for licensing DNA for replication.

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Unsupervised Domain Adaptation (UDA) has shown promise in Scene Text Recognition (STR) by facilitating knowledge transfer from labeled synthetic text (source) to more challenging unlabeled real scene text (target). However, existing UDA-based STR methods fully rely on the pseudo-labels of target samples, which ignores the impact of domain gaps (inter-domain noise) and various natural environments (intra-domain noise), resulting in poor pseudo-label quality. In this paper, we propose a novel noisy-aware unsupervised domain adaptation framework tailored for STR, which aims to enhance model robustness against both inter- and intra-domain noise, thereby providing more precise pseudo-labels for target samples.

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O-linked N-acetylglucosamine (O-GlcNAc) is the most abundant mono-saccharide modification occurring in the cytoplasm, nucleus, and mitochondria. The recent advent of mass spectrometry technology has enabled the identification of abundant O-GlcNAc transferase (OGT) substrates in diverse biological processes, such as cell cycle progression, replication, and DNA damage response. Herein we report the O-GlcNAcylation of Replication Protein A2 (RPA2), a component of the heterotrimeric RPA complex pivotal for DNA metabolism.

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Background: Immune factors are crucial in the pathogenesis of rheumatoid arthritis (RA), and immune cells play a key role in the development of RA. However, there is still disagreement regarding the specific roles of each type of immune cell in the pathological process of RA.

Methods: This study used bidirectional two-sample Mendelian randomization (MR) analysis to determine the causal relationship between immune cell characteristics and RA.

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Article Synopsis
  • Hemorrhagic fever with renal syndrome (HFRS) is a serious illness in Eurasia with no specific treatments currently available, highlighting the need for safe and effective vaccines.
  • Researchers developed three types of nucleic acid vaccine candidates (mRNA, naked DNA, and DNA in lipid nanoparticles) targeting the Hantaan virus to assess their potential against HFRS.
  • All vaccine candidates successfully triggered strong immune responses similar to an existing inactivated vaccine, with the mRNA vaccine showing a robust T-helper 1 cell response and the DNA-LNP producing higher neutralizing antibodies, suggesting that combining these vaccines could enhance their effectiveness.
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Heatstroke is a condition caused by overheating of the body that leads to severe central nervous system dysfunction. Although there have been numerous studies on the pathological process of heatstroke, effective treatment methods are lacking. Astragaloside IV can protect the brain from inflammation and brain damage in various inflammation-related diseases, but it has not yet been used clinically for the treatment of heatstroke.

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In order to achieve batch production, we propose a simple and fast method to prepare leather-finished plywood. In this study, ethylene-vinyl acetate was selected as the intermediate layer to prepare EVA/polyurethane (PU) leather composites. ESEM, tensile property test and compressive property test were used to characterize the microstructure and physical-mechanical properties of the composites.

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  • The study aims to evaluate the effectiveness and safety of a specific oral complementary medicine formulation compared to a placebo for reducing pain in individuals with knee osteoarthritis over 12 weeks.
  • A total of 82 participants aged 40 and older will be randomly assigned to receive either the complementary medicine or a placebo, with key measurements focused on changes in knee pain intensity and related health outcomes.
  • The research follows ethical guidelines and intends to share findings through various channels, potentially influencing future standards for managing knee osteoarthritis with complementary medicines.
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Objective: To establish a high-performance liquid chromatography-mass spectrometry(HPLC-MS/MS) method for detecting 13 kind of free and bound phenolic acids(chlorogenic acid, protocatechuic acid, ferulic acid, p-coumaric acid, gallic acid, gentisic acid, vanillic acid, caffeic acid, syringic acid, sinapic acid, rosmarinic acid, salicylic acid, p-hydroxybenzoic acid) in fruits, and optimize the pre-treatment conditions to meet the detection requirements for phenolic acid content in various types of fruits.

Methods: Free phenolic acids in fruits were extracted using methanol through ultrasonic extraction. Conjugated phenolic acids in the centrifuged residue were released by alkaline hydrolysis and extracted with ethyl acetate.

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Aurantii Fructus Immaturus(AFI) is a traditional Chinese herbal medicine with multiple origins from Citrus aurantium and its legally cultivated variants. With advancements in agricultural biotechnology, many new cultivated varieties have sprung up,leading to an abundance of AFI adulterants and chaos in the herbal medicine markets. This study developed a specific identification method for AFI and its closely related adulterants by examining the appearance trait, content of extract, and multiple ingredients,involving indicators such as the ratio of pulp capsule to cross section diameter(Pc/Cs ratio), the content of extract, and the profile of 11 ingredients.

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Objects: To evaluate the association of direct oral anticoagulants (DOACs) and warfarin with dementia incidence in atrial fibrillation (AF) patients.

Methods: Relevant studies were retrieved in databases including Embase, PubMed, Cochrane, Web of Knowledge, and ClinicalTrials.gov.

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Treatment of alkyl α-(-heteroaryl)-α-diazoacetates with alkylating reagents affords diazoacetate N-heteroarenium salts. These novel 'onium' diazo compounds are mostly yellow solids, displaying increased thermal and acid stability. Their tetrafluoroborates undergo rhodium catalyzed [2 + 1] and Doyle-Kirmse reactions under mild conditions, suggesting the -quaternization an effective means of elimination of -coordination caused catalyst toxicity.

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Background: The purpose of this phase 1 trial was to evaluate the safety and toxicity of repeated normothermic intraperitoneal paclitaxel (PTX) for patients with gastric cancer metastatic to the peritoneum.

Methods: A Bayesian optimal interval design was used to prospectively identify the safety and tolerability of escalating doses of intraperitoneal paclitaxel at weekly treatments for 3 weeks, followed by a 1-week break, and then three additional treatments. The primary objective was to define the maximum tolerated dose.

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Soybean (Glycine max) is a globally important crop; however, its productivity is severely impacted by phosphorus (P) deficiency. Understanding the transcriptional regulation of low P (LP) response mechanisms is essential for enhancing soybean P use efficiency. In this study, we found that the Nuclear Factor-Y (NF-Y) transcription factor GmNF-YC4, in addition to its previously discovered role in regulating flowering time, possesses other functions in modulating root morphology and P uptake.

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Article Synopsis
  • Parkinson's disease is a neurodegenerative disorder marked by the loss of dopamine-producing neurons, with no effective treatments currently available.
  • Echinacoside (ECH) has neuroprotective properties, but its effectiveness is limited by the blood-brain barrier, which makes it difficult for the drug to reach the brain effectively.
  • Researchers developed PEGylated ECH liposomes modified with a targeting peptide (ECH@ANG-Lip), which showed improved brain uptake and greater protection against neurodegeneration compared to other formulations in a lab model of Parkinson's disease.
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