Publications by authors named "Qingxin Shi"

This article aims to study the processing methods by exploring the main chemical constituents of Aconiti Lateralis Radix Praeparata and the toxicity-attenuating mechanisms. The relevant articles were retrieved from multiple databases with the time interval of 1960-2024, and the chemical constituents of Aconiti Lateralis Radix Praeparata and the toxicity-attenuating mechanisms of its processing methods were summarized. The review revealed that the chemical constituents of Aconiti Lateralis Radix Praeparata included 32 diester-type alkaloids, 36 monoester-type alkaloids, 43 alkanolamine-type alkaloids, and 8 lipid-type alkaloids.

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Objective: Elizabethkingia species usually exhibit resistance to multiple antibiotics, and inappropriate antimicrobial therapy is a major cause of mortality in patients with Elizabethkingia infection. Our study aimed to comprehensively analyse and compare the genomic and clinical features of three Elizabethkingia species.

Methods: Matrix-assisted laser desorption/ionization-time of flight mass spectrometry and whole-genome sequencing were used to identify 88 Elizabethkingia isolates from 88 patients in the past 6 y.

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Background: Current non-invasive prenatal testing (NIPT) based on cell-free DNA (cfDNA) mainly targets the detection of chromosome aberrations but not dominant single-gene disorders (dSGDs).

Aim: This prospective pilot study aims to evaluate the clinical utility of a plasma cfDNA and targeted next-generation sequencing-based NIPT approach for dSGDs (NIPT-dSGD), with a particular focus on neurodevelopmental disorders (NDDs).

Design: Prospective pilot study.

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The Traditional Chinese Medicine compound preparation known as Diwu Yanggan capsule (DWYG) can effectively hinder the onset and progression of hepatocellular carcinoma (HCC), which is recognized worldwide as a significant contributor to fatalities associated with cancer. Nevertheless, the precise mechanisms implicated have remained ambiguous. In present study, the model of HCC was set up by the 2-acetylaminofluorene (2-AAF)/partial hepatectomy (PH) in rats.

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The Balanophorae are not only traditional Chinese herbal medicines but also functional foods with diverse sources. This study aimed to distinguish pharmacognostic characteristics and secondary metabolites among different species of Balanophorae. Eight species of Balanophorae herbs were harvested, including 21 batches with 209 samples.

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The generation of chimeric antigen receptor-modified natural killer (CAR-NK) cells using induced pluripotent stem cells (iPSCs) has emerged as one of the paradigms for manufacturing off-the-shelf universal immunotherapy. However, there are still some challenges in enhancing the potency, safety, and multiple actions of CAR-NK cells. Here, iPSCs were site-specifically integrated at the ribosomal DNA (rDNA) locus with interleukin 24 (IL24) and CD19-specific chimeric antigen receptor (CAR19), and successfully differentiated into iPSC-derived NK (iNK) cells, followed by expansion using magnetic beads in vitro.

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Hyperlipidemia is a chronic metabolic disorder characterized by alterations in lipid metabolism as well as other pathways. Laportea bulbifera, an indigenous medicinal plant of Chinese herbal medicine, exhibits therapeutic effects on hyperlipidemia, but the mechanisms remain unclear. This study investigated the potential mechanisms underlying the anti-hyperlipidemic effects of L.

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Citrullinemia type I (CTLN1) is a rare autosomal recessive inborn error of the urea cycle caused by mutations in the gene encoding the arginosuccinate synthetase (ASS1) enzyme. Classic CTLN1 often manifests with acute hyperammonemia and neurological symptoms. Molecular genetic testing is critical for patient diagnosis.

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This paper proposes a learning control framework for the robotic manipulator's dynamic tracking task demanding fixed-time convergence and constrained output. In contrast with model-dependent methods, the proposed solution deals with unknown manipulator dynamics and external disturbances by virtue of a recurrent neural network (RNN)-based online approximator. First, a time-varying tangent-type barrier Lyapunov function (BLF) is introduced to construct a fixed-time virtual controller.

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Article Synopsis
  • - The study explores how different types of fungi, specifically Aspergillus cristatus (AC), Aspergillus neoniger (AN), and mixed fungi (MF), impact the fermentation process and metabolites in dark tea over 15 days.
  • - Results showed that AN and MF had more differential metabolites compared to AC, with most metabolites in the AN and MF groups decreasing over time, while those in the AC group tended to increase.
  • - Key metabolic pathways involved were related to flavonoid and lipid production, highlighting that AN plays a more significant role in mixed fermentation than AC, thereby enhancing our understanding of dark tea fermentation and its quality control.
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Objective: Metagenomic next-generation sequencing (mNGS) technology has the potential to detect a wide range of pathogenic microorganisms. However, reports on the diagnostic value and clinical significance of different platforms of mNGS for patients with lower respiratory tract infections (LRTIs) remain scarce.

Methods: A total of 306 patients with suspected LRTIs were enrolled from January 2019 to December 2021.

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The outbreak of novel coronavirus disease (COVID-19) has resulted in changes in productivity and daily life patterns, and as a result electricity consumption (EC) has also shifted. In this paper, we construct estimates of EC changes at the metropolitan level across the continental U.S.

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Article Synopsis
  • Cardiolipins (CLs) play critical roles in ATP production, mitochondrial function, apoptosis, and mitophagy, with their tissue distribution offering insights into related diseases.
  • This study identified 88 different CLs in various tissues, revealing significant differences in their distribution among the heart, liver, kidney, spleen, lung, skeletal muscle, and brain, especially between male and female subjects.
  • The findings suggest that analyzing CL distribution is crucial for understanding mitochondrial mechanisms in both health and disease, highlighting potential sex-related differences in liver and kidney tissues.
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Background: The incidence of polymicrobial bloodstream infections is increasing, the clinical characteristics of polymicrobial bloodstream infections (AB-BSI) are unclear, and there are no reports of polymicrobial AB-BSI in mainland China. Therefore, our objective was to identify the clinical characteristics, risk factors, and outcomes of polymicrobial AB-BSI versus monomicrobial AB-BSI.

Methods: A retrospective survey of all patients with AB-BSI from January 1, 2015, to December 31, 2019, and their clinical data were collected and analyzed by reviewing electronic medical records.

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Background: The defect of Bruton's tyrosine kinase (BTK) gene resulted in X-linked agammaglobulinemia (XLA), which is characterized by recurrent bacterial infections, immunodeficiency with low B-cell numbers and immunoglobulin. Diagnosis of XLA depends on clinical phenotype and genetic testing.

Methods: Six unrelated Chinese families with high suspicion of XLA were enrolled in this study.

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(AR) has been used as an herbal medicine in China for over a thousand years. Crude AR, salt-processed AR (SAR), and bran-processed AR (BAR) are recorded in the Pharmacopoeia of the People's Republic of China. However, the differences of chemical composition between crude AR and its processing products remain limited.

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Contezolid is a novel oxazolidinone, which exhibits potent activity against gram-positive bacteria, including methicillin-resistant (MRSA), vancomycin-resistant (VRE), and penicillin-resistant (PRSP). In this study, the activity of contezolid was compared with linezolid (LZD), tigecycline (TGC), teicoplanin (TEC), vancomycin (VA), daptomycin (DAP), and florfenicol (FFC) against MRSA and VRE strains isolated from China. Contezolid revealed considerable activity against MRSA and VRE isolates with MIC values of 0.

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The preventive and therapeutic effects of dark tea fermented by Eurotium cristatum (DTE) in glucose metabolism have been demonstrated. However, few studies have investigated comprehensive changes in the chemical composition and activity in DTE before and after fermentation. In this study, the metabolic profiling of raw samples and fermented samples was determined by ultra-performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS/MS).

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Introduction: Accurate species and content identification of major active components in herbals are the guarantee of the safety and effectiveness for medical and commodity purposes.

Objectives: In this study, an integrated strategy used to establish the protoberberine alkaloid profile was applied to explore the differences in composition between the pieces of Tinosporae radix and Fibraurea caulis, both of which had morphological similarities.

Materials And Methods: First, an in-house library including possible protoberberine alkaloids based on different substituents was predicted by systematic literature survey.

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Article Synopsis
  • Most microbes remain uncultured despite advancements in microbial culture, and the effects of medium composition on isolating these microbes are not fully understood.
  • High-throughput sequencing (HTS) and culture techniques were used to study microbial communities in marine sediment samples, revealing differences in community composition between the two methods.
  • A combination of media was found to culture a greater variety of taxa than any single medium, with nutrient-rich and specific carbon/nitrogen sources supporting fewer taxa, while the type of nitrogen used significantly impacted bacterial isolation.
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The worldwide severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak has led to the rapid spread of coronavirus disease (COVID-19). The quantitative real time PCR (qPCR) is widely used as the gold standard for clinical detection of SARS-CoV-2. However, more and more infected patients are relapsing after discharge, which suggests qPCR may fail to detect the virus in some cases.

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Objective: There is a limited diagnosis of nonalcoholic fatty liver disease (NAFLD). Thus, the noninvasive assessments are worth exploring. We determined the associations of phase angles (PhAs) obtained from bioelectric impedance analysis (BIA) with the risk of NAFLD in an overweight population.

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Fuzhuan Brick-Tea is a postfermented product with the hypoglycemic effect, which is prepared from the leaves of Camellia sinensis var. sinensis. However, the material basis associated with the hypoglycemic effect was not clear.

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Curcuminoids are the major bioactive constituents of turmeric, the application of which are limited by the poor bioavailability. In this study, turmeric was fermented by the Monascus purpureus and Eurotium cristatum fungi to enhance its bioavailability. To explore the variations in the curcuminoids contents in fermented turmeric, a targeted predict-verify strategy was established.

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Triterpenoid saponins from Kuding tea have demonstrated preventive effects on hyperlipidaemia induced by a high-fat diet. Lysoglycerophospholipids (Lyso-GPLs) are known to be associated with proatherogenic conditions such as hyperlipidaemia. In this study, a target profiling strategy based on a multiple reaction monitoring mode was applied for the analysis of Lyso-GPLs.

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