Publications by authors named "Guo Qiu"

Background: Retrospective studies suggested that haploidentical transplantation combined with unrelated cord blood might improve survival for patients with haematological malignancies. We aimed to assess whether transplantation of haploidentical peripheral blood stem cells (PBSCs) plus unrelated cord blood would achieve superior disease-free survival compared with transplantation of haploidentical PBSCs plus bone marrow in this population.

Methods: We did an open-label, randomised, phase 3 trial at seven hospitals in China.

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Hepatocellular carcinoma (HCC) is the most prevalent form of liver tumor, characterized by restricted therapeutic options and typically low long-term survival rates. Recently, immunotherapy has revolutionized HCC treatment, making the tumor microenvironment (TME) a research focus. Radiomics is increasingly crucial in HCC clinical decisions, offering advanced tools for TME characterization and prognosis assessment.

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During the transition from embryonic to adult life, the sites of hematopoiesis undergo dynamic shifts across various tissues. In adults, although bone marrow (BM) becomes the primary site for definitive hematopoiesis, the establishment of the BM niche for accommodating hematopoietic stem cells (HSCs) remains incompletely understood. Here, we reveal that perinatal BM mesenchymal stem cells (BMSCs) exhibit highly activated insulin-like growth factor 1 receptor (IGF1R) signaling compared with adult BMSCs (aBMSCs).

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Leukemic stem cells (LSCs) in chronic myeloid leukemia (CML) contribute to treatment resistance and disease recurrence. Metabolism regulates LSCs, but the mechanisms remain elusive. Here, we show that hypoxia-inducible factor 2α (HIF-2α) is highly expressed in LSCs in mouse and human CML and increases after tyrosine kinase inhibitor (TKI) treatment.

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Leukaemia stem cells (LSCs) in acute myeloid leukaemia present a considerable treatment challenge due to their resistance to chemotherapy and immunosurveillance. The connection between these properties in LSCs remains poorly understood. Here we demonstrate that inhibition of tyrosine phosphatase SHP-1 in LSCs increases their glycolysis and oxidative phosphorylation, enhancing their sensitivity to chemotherapy and vulnerability to immunosurveillance.

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Article Synopsis
  • * Despite their potential, very few IONPs have been successfully used in clinical settings, with some previously approved ones being withdrawn due to a lack of understanding of their biomedical applications.
  • * The review explores research over the past decade, detailing the biological interactions of IONPs in animal and cell models, aiming to advance their design and application for better clinical outcomes.
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  • * Nanocarriers, including liposomes and nanoparticles, are being studied as a way to enhance the delivery and therapeutic effects of active compounds in TCMs while minimizing side effects.
  • * This review covers the latest developments in nanocarrier systems for TCMs, including their design, characterization, and performance evaluation, as well as the challenges and future research directions in this field.
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  • Previous studies on breast lesion calcification have shown varying results due to different imaging techniques and enhancement phases, with uncertainty about the best approach.
  • The study aimed to find the most effective MRI radiomics model for identifying breast lesions and evaluate its usefulness for guiding biopsies using multiparametric MRI.
  • Results revealed that the best performing radiomics model combined contrast-enhanced MRI with diffusion-weighted and T2-weighted imaging, achieving a high accuracy and significantly improved specificity for diagnosis compared to traditional methods.*
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  • A new fluorescent probe (Probe 1) was created to detect carboxylesterase, which helps identify carbamate pesticides.
  • The probe changes color from light blue to dark blue as the amount of carbamate pesticides increases, allowing for quick detection.
  • Using a smartphone app called Get Color, users can calculate pesticide concentrations without needing special training or equipment, and the probe has been successfully tested on fruit and vegetable juices.
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Sorafenib, a kinase inhibitor, has shown promising therapeutic efficacy in a subset of patients with acute myeloid leukemia (AML). However, despite its clinical effectiveness, sorafenib resistance is frequently observed in clinical settings, and the mechanisms underlying this resistance as well as effective strategies to overcome it remain unclear. We examined both single-cell and bulk transcription data in sorafenib-resistant and control AML patients and integrated a sorafenib resistance gene signature to predict the sensitivity of AML cells and the clinical outcomes of AML patients undergoing sorafenib therapy.

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  • Stable isotope dilution analysis (SIDA) is an effective and precise method for quantifying food flavor components, but many necessary stable isotope reagents are not commercially available.
  • The paper discusses the fundamental principles of SIDA, its historical advancements in food flavor analysis, and compiles recent preparation methods for stable isotope analysis of these compounds.
  • From 2012 to 2022, 185 stable isotopes related to food flavor analysis were identified, with 126 available for purchase and 59 requiring laboratory preparation; the review aims to assist in the synthesis methods for stable isotopes to enhance food flavor analysis.
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Background: A growing body of research has revealed the connection of metabolism reprogramming and tumor progression, yet how metabolism reprogramming affects inter-patient heterogeneity and prognosis in head and neck squamous cell carcinoma (HNSCC) still requires further explorations.

Methods: A cellular hierarchy framework based on metabolic properties discrepancy, METArisk, was introduced to re-analyze the cellular composition from bulk transcriptomes of 486 patients through deconvolution utilizing single-cell reference profiles from 25 primary and 8 metastatic HNSCC sample integration of previous studies. Machine learning methods were used to identify the correlations between metabolism-related biomarkers and prognosis.

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Parkinson's disease (PD) is a highly heterogeneous disorder that is difficult to diagnose. Therefore, reliable biomarkers are needed. We implemented a method constructing a regional radiomics similarity network (R2SN) based on the amplitude of low-frequency fluctuation (ALFF).

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Deep learning (DL) is one of the most powerful data-driven machine-learning techniques in artificial intelligence (AI). It can automatically learn from raw data without manual feature selection. DL models have led to remarkable advances in data extraction and analysis for medical imaging.

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Objectives: This study aims to build radiomics model of Breast Imaging Reporting and Data System (BI-RADS) category 4 and 5 mammographic masses extracted from digital mammography (DM) for mammographic masses characterization by using a sensitivity threshold similar to that of biopsy.

Materials And Methods: This retrospective study included 288 female patients (age, 52.41 ± 10.

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Parkinson's disease (PD) is one of the most common progressive degenerative diseases, and its diagnosis is challenging on clinical grounds. Clinically, effective and quantifiable biomarkers to detect PD are urgently needed. In our study, we analyzed data from two centers, the primary set was used to train the model, and the independent external validation set was used to validate our model.

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Background: The association of repeated administration of gadolinium-based contrast agents (GBCAs) with the gadolinium (Gd) retention in the brains of mother and fetus remains unclear.

Purpose: To investigate the effects of pregnancy and repeated administration of GBCAs on Gd retention in the brains of mother and pup mice.

Study Type: Cross-sectional cohort toxicity study.

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The present study explored whether levetiracetam (LEV) could protect against experimental brain ischemia and enhance angiogenesis in rats, and investigated the potential mechanisms and . The middle cerebral artery was occluded for 60 min to induce middle cerebral artery occlusion (MCAO). The Morris water maze was used to measure cognitive ability.

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Complexly contaminated river sediment caused by reducible and oxidizable organic pollutants is a growing global concern due to the adverse influence on ecosystem safety and planetary health. How to strengthen indigenous microbial metabolic activity to enhance biodegradation and mineralization efficiency of refractory composite pollutants is critical but poorly understood in environmental biotechnology. Here, a synergetic biostimulation coupling electrode with zero-valent iron (ZVI) was investigated for the bioremediation of river sediments contaminated by 2,4,6-tribromophenol (TBP, reducible pollutant) and hydrocarbons (oxidizable pollutants).

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Article Synopsis
  • The study analyzed data from 90,785 patients who underwent non-cardiac and non-neurosurgery, comparing outcomes based on the anesthetic technique used: regional versus general anesthesia.
  • In the matched cohort, patients receiving regional anesthesia had a 30-day mortality rate of 0.75%, significantly lower than the 1.31% mortality rate in the general anesthesia group, along with reduced ICU admissions.
  • These findings suggest that regional anesthesia may be linked to better postoperative outcomes, highlighting its potential advantages over general anesthesia.
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Objective: To investigate the effect of electroacupuncture on the P35/P25-cyclin-dependent kinase 5 (CDK5)-Tau pathway in rats with Alzheimer's disease (AD), as well as the mechanism of electroacupuncture in the prevention and treatment of AD.

Methods: Sprague-Dawley rats were randomly divided into control group, sham-operation group, model group, and electroacupuncture treatment group, with 12 rats in each group. A rat model of AD was established by injection of Aβ into the bilateral hippocampus.

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The intense pollution of urban river sediments with rapid urbanization has attracted considerable attention. Complex contaminated sediments urgently need to be remediated to conserve the ecological functions of impacted rivers. This study investigated the effect of using methanol as a co-substrate on the stimulation of the indigenous microbial consortium to enhance the bioremediation of petroleum hydrocarbons (PHs) and polycyclic aromatic hydrocarbons (PAHs) in an urban river sediment.

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Ammopiptanthus mongolicus, the only drought-resistant, leguminous, evergreen shrub in the desert region of China, is endangered due to climate change and its growth stages urgently need to be non-destructively detected. Although many spectral indexes have been proposed for characterizing vegetation, the relationships are often inconsistent, making it challenging to characterize the status of vegetation across all growth stages. This study investigated the Spectral Features of the endangered desert plant A.

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In this paper, panel data models are established to examine the impacts of urban construction, transport facilities, and economic development on the urban air quality. Combined with data from different tiers of Chinese cities for two time series, 2010 and 2015, the variable-intercept model (VIM) is used to determine the parameters and significance of each independent variable. The marginal effects of different categories of independent variables (urbanization, transportation and economy) on the urban air quality are also studied with regard to the results of different VIMs.

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