Publications by authors named "Xi Q"

Rationale And Objectives: Alzheimer's disease (AD) is the most common pathogenesis of dementia, and mild cognitive impairment (MCI) is considered as the intermediate stage from normal elderly to AD. Early detection of MCI is an essential step for the timely intervention of AD to slow the progression of this disease. Different form previous studies in the whole-brain spontaneous activities, this research aimed to explore the low-frequency amplitude spectrum activities of patients with MCI within the default mode network (DMN), which has been involved in the process of maintaining normal cognitive function.

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Objectives: The aim of this study was to investigate the associations, potential effects, and interactions between short-term exposure to air pollution and the risk of ischemic stroke (IS).

Study Design: An ecological study.

Methods: Daily data on IS incidents, air pollution, and meteorological conditions were collected from 2017 to 2021 in Gannan.

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Brown adipose tissue (BAT) is an ideal target organ for obesity treatment. Resinacein S is extracted from Ganoderma lucidum and can elevate Uncoupling protein 1 (UCP1) in cells, but its related effects at the animal level are not clear. The mice were fed with high-fat diet to construct obesity models and treated with Resinacein S.

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Renal fibrosis is the most common pathway for the development of end-stage renal disease (ESRD) in various kidney diseases. Currently, the treatment options for renal fibrosis are limited. Ferroptosis is iron-mediated lipid peroxidation, triggered mainly by iron deposition and ROS generation.

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The precise mechanisms behind early embryonic arrest due to sperm-related factors and the most effective strategies are not yet fully understood. Here, we present two cases of male infertility linked to novel variants, associated with oligoasthenoteratozoospermia (OAT) and early embryonic arrest. To investigate the underlying mechanisms and promising therapeutic approaches, knock-in and knock-out mice were generated.

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Unveiling the nonlinear interactions between terahertz (THz) electromagnetic waves and free carriers in two-dimensional materials is crucial for the development of high-field and high-frequency electronic devices. Herein, we investigate THz nonlinear transport dynamics in a monolayer graphene/MoS heterostructure using time-resolved THz spectroscopy with intense THz pulses as the probe. Following ultrafast photoexcitation, the interfacial charge transfer establishes a nonequilibrium carrier redistribution, leaving free holes in the graphene and trapping electrons in the MoS.

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Objective: The objective of this study was to rigorously investigate and elucidate the genetic mechanisms underlying the formation of the RH blood group in a specific case and to systematically analyse the RH blood group genes among the family members of the proband.

Methods: Serological methods were used to determine the RH blood group phenotype of the proband. To elucidate the underlying genetic mechanism responsible for the RH phenotype, a comprehensive approach was undertaken, including RHCE genotyping, sequencing of RHD and RHCE genes, and exon sequencing of RHAG.

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The study of muscle disorders has gained popularity, with a particular emphasis on the relationship between adipose tissue and skeletal muscle. In our investigation, we discovered that the deletion of miR-146a-5p specifically in adipose tissue (aKO) led to a notable rise in mice's mass and adiposity. In contrast, it led to a decline in lean mass, ability to exercise, diameter of muscle fibers, and the levels of genes associated with differentiation.

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The heat and corrosion resistance of traditional membranes is inadequate, thus making them inadequate for the separation/filtration needs of harsh environments. Polyphenylene sulfide(PPS) can be used to develop new-generation membrane materials, but PPS has problems such as hydrophobicity and UV resistance. This article proposes a PPS membrane for efficient separation/filtration under extreme conditions, which uses melt-blown PPS non-woven fabric and undergoes oxidation and nitrification modification.

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The issue of soil salinization is a global concern that significantly impairs crop productivity, quality, and distribution. Tonoplast Dicarboxylate Transporter (TDT) is a pivotal malic acid transporter localized on the vacuolar membrane, involving in maintaining intracellular pH homeostasis in plants. However, the molecular mechanisms and regulatory pathways underlying plant salt tolerance through TDT remain elusive.

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Article Synopsis
  • Plant-derived microRNAs (miRNAs) show potential for gene regulation across species, but more research is needed on how they function in animals, particularly in dairy cows.
  • An analysis of tissue-specific miRNA expression found 347 miRNAs in dairy cows, with 167 derived from maize, indicating strong absorption of these plant miRNAs, especially in the rumen and mammary glands.
  • The study demonstrates that the maize-derived miRNA miR166a-3p can inhibit cell proliferation and promote apoptosis in cultured cells, highlighting the significant role of plant miRNAs in biological processes and their potential applications in agriculture and medicine.
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Background: Krüppel-like factor 4 (KLF4), a transcription factor, is involved in various biological processes. However, the role of KLF4 in regulating the intestinal epithelial barrier (IEB) in inflammatory bowel disease (IBD) and its mechanism have not been extensively studied.

Methods: KLF4 expression in IBD patients and colitis mice was analyzed using Gene Expression Omnibus(GEO) database, immunohistochemistry (IHC) and Western blot.

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Article Synopsis
  • Integrins are crucial receptors that help cells stick to their surroundings, and abnormal levels of integrins can lead to cancer progression and spread.
  • Integrin alpha-5 (ITGA5), which binds to proteins like fibronectin, was found to be linked with poor survival rates in patients with non-small cell lung cancer (NSCLC).
  • Experiments showed that increasing ITGA5 led to larger, more mobile cancer cells, while reducing ITGA5 returned those cells to normal behavior, suggesting that targeting ITGA5 could be a potential treatment strategy for NSCLC.
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The outcome prediction of acute anterior circulation non-lacunar infarction (AACNLI) is important for the precise clinical treatment of this disease. However, the accuracy of prognosis prediction is still limited. This study aims to develop and compare machine learning models based on MRI radiomics of multiple ischaemic-related areas for prognostic prediction in AACNLI.

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Background & Aims: Enhanced computed tomography (CT) is the primary method for focal liver lesion diagnosis. We aimed to use automated machine learning (AutoML) algorithms to differentiate between benign and malignant focal liver lesions on the basis of radiomics from unenhanced CT images.

Methods: We enrolled 260 patients from 2 medical centers who underwent CT examinations between January 2017 and March 2023.

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Fibrous zinc-ion batteries (FZIBs) are ideal wearable energy storage devices with unparalleled utility in the next generation of flexible electronics. However, the conventional electrode materials still present challenges to achieve both good electrochemical performance and mechanical deformability. This hinders their large-scale production and commercial application.

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Objectives: To evaluate the prognostic value of body composition-related imaging parameters in assessing Crohn's disease (CD) severity and biological responses in Chinese patients.

Methods: We retrospectively analyzed electronic medical records and Computed tomography (CT) images from 117 CD patients, including 90 with sarcopenia and 27 without. We calculated subcutaneous fat area (SFA), visceral fat area, skeletal muscle area (SMA), mesenteric fat index (MFI), skeletal muscle index (SMI), and muscle attenuation (MA).

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Background And Aims: Nutritional support after hospital discharge was found to enhance the nutritional condition of patients after cancer surgery. However, the effect of such support on long-term clinical outcomes is controversial. We thus investigated the effect of nutritional support after hospital discharge on long-term clinical outcomes in patients after gastric cancer surgery.

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Background: Ejaculatory abstinence (EA) duration influences semen parameters. However, the impact of penultimate ejaculatory abstinence (PEA) on conventional and functional sperm parameters remains underexplored.

Method: A cross-sectional study recruited 1,503 men from a reproductive center between November 2023 and July 2024.

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The interactions between myogenic cells and adipocytes play an important role in improving carcass traits and the efficiency of energy utilization. However, there are few reports about the interaction between them mediated by small extracellular vesicles (sEV). In this study, sEV derived from porcine primary skeletal muscle stem cells (MuSCs) was found to be involved in the inhibition of porcine primary adipocyte viability, triglyceride content, Oil Red O enrichment and the expression of adipogenic genes.

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Purpose: To determine the genetic cause of infertility in two unrelated families of female patients suffering from oocyte degeneration and fertilization failure.

Methods: Whole exome sequencing and Sanger sequencing were performed to identify the disease-causing genes of infertility in two unrelated female patients. Minigene experiments were conducted to confirm the effect of splice site mutations on mRNA splicing.

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Article Synopsis
  • - The study investigates the effects of stress hyperglycemia ratio (SHR), admission blood glucose (ABG), and hemoglobin A1c (HbA1c) on the severity and long-term outcomes of patients with idiopathic pulmonary arterial hypertension (IPAH), as prior research has not explored these relationships.
  • - Out of 625 patients monitored for an average of 3.8 years, 35% faced severe health events or death, with findings showing that higher SHR and ABG are strong independent predictors of these outcomes.
  • - Analysis revealed that pulmonary vascular resistance played a role in the relationship between hyperglycemia and clinical worsening, indicating it could mediate a significant portion of these outcomes.
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Diabetic cataract (DC) represents a highly prevalent ocular manifestation resulting from diabetes often culminating in vision impairment among individuals with diabetes. Regrettably, the armamentarium of pharmaceutical interventions capable of both delaying and thwarting the onset of DC remains conspicuously sparse. Based on contemporary investigations, the pathogenesis of DC is prominently influenced by oxidative harm to the crystalline lens and the nonenzymatic glycosylation of lens proteins.

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