Publications by authors named "Long Ma"

As promising noninvasive biomarkers, nucleic acids provide great potential to innovate cancer early detection methods and promote subsequent diagnosis to improve the survival rates of patient. Accurate, straightforward and sensitive detection of such nucleic acid-based cancer biomarkers in complex biological samples holds significant clinical importance. However, the low abundance creates huge challenges for their routine detection.

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Objective: To evaluate the clinical efficacy of repairing bone defects caused by benign bone tumors using allograft bone combined with calcium phosphate bone powder.

Methods: A retrospective analysis was conducted on 55 patients (aged 10-61 years, mean 35 ± 13.2) with benign bone tumors treated at our hospital from June 2020 to December 2022.

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Yak is a large plateau mammal with low reproduction rate, while cryptorchidism is a major reproductive disorder associated with infertility in highland yaks. To better understand the occurrence of cryptorchidism and its regulatory mechanisms in yaks, we conducted a multi-omic analysis, and screened a total of 4456 differentially expressed genes (DEGs) and 332 differentially expressed proteins (DEPs) between normal and unilateral cryptorchid testes of yaks using high-throughput transcriptome sequencing (RNA-seq) and Tandem Mass Tag (TMT)-based proteomics techniques, with testes from yaks with cryptorchidism as the target. Enrichment analysis revealed that the DEGs were associated with cell growth, sperm motility, immune regulation, and intercellular tight junctions, and were mainly enriched in pathways related to cell differentiation; amino acid, sugar, and lipid metabolism; cell adhesion, and hypoxia tolerance.

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High-density microelectrode arrays have opened new possibilities for systems neuroscience, but brain motion relative to the array poses challenges for downstream analyses. We introduce DREDge (Decentralized Registration of Electrophysiology Data), a robust algorithm for the registration of noisy, nonstationary extracellular electrophysiology recordings. In addition to estimating motion from action potential data, DREDge enables automated, high-temporal-resolution motion tracking in local field potential data.

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Background: To analyze the therapeutic efficacy of intervertebral surgery in the treatment of multisegmental spinal tuberculosis (MSTB) by evaluating its clinical outcomes and perioperative indicators, thereby providing evidence-based insights to optimize surgical strategies and improve clinical decision-making.

Methods: This retrospective cohort study analyzed 134 MSTB patients treated at our hospital between January 2000 and June 2022. Based on the surgical approach, patients were divided into two groups: Group A ( = 75), who underwent intervertebral surgery, and Group B ( = 59), who received non-intervertebral surgery.

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Ionic current rectification (ICR) induced by electroosmotic flow (EOF) under concentration gradients can find many applications in micro/nanofluidic sensing and ionic circuits. Here, we focused on the cases with micropores of moderate length-diameter ratios. Through experimental research and systematic simulations, the EOF-induced ICR was found to exhibit voltage-dependent ratios.

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Infrared-visible image fusion (IVIF) is a fundamental and critical task in the field of computer vision. Its aim is to integrate the unique characteristics of both infrared and visible spectra into a holistic representation. Since 2018, growing amount and diversity IVIF approaches step into a deep-learning era, encompassing introduced a broad spectrum of networks or loss functions for improving visual enhancement.

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The ultrastructure of submandibular gland (SMG) of Bactrian camels was observed by a transmission electron microscope. Routine HE staining, special staining combined with immunohistochemistry, and immunofluorescence techniques were used to study the histochemical characteristics of the submandibular gland and the localisation and distribution characteristics of epidermal growth factor (EGF) and epidermal growth factor receptor (EGFR). HE results showed that the submandibular gland of Bactrian camels was composed of mixed serous and mucinous acini glands.

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Background: Telocytes (TCs) are small interstitial cells that extend into multiple bead-like protrusions called telopodes (TPs). TCs are widely found in many tissues and organs, form connections with almost all types of cardiomyocytes, and participate in regulating cardiac microenvironment homeostasis.

Methods: In this study, transmission electron microscopy combined with special staining techniques (Gomori's, Masson's trichrome, and toluidine blue staining) were used to analyse the ultrastructure, distribution, and cytochemical characteristics of TCs in yak hearts.

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The food safety and medical health issues caused by pathogen are particularly prominent. The development of biosensing technologies is urgent to ensure pathogenic biosafety. Argonaute system, as a promising and cutting-edged next-generation nucleic acid test technology, has the potential to address the challenges faced by CRISPR/Cas system.

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RNA interference (RNAi) represents a promising gene-specific therapy against tumors. However, its clinical translation is impeded by poor performance of lysosomal escape and tumor targeting. This challenge is especially prominent in glioblastoma (GBM) therapy, necessitating the penetration of the blood-brain barrier (BBB).

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Introduction: Immunoglobulin (Ig) refers to the nomenclature for all antibody proteins produced by B lymphocytes. The genetic locus encoding Ig is critical for vertebrate humoral immune responses and diverse antibody repertoires. Despite the critical role of buffaloes as livestock and their significance in disease transmission, the Ig loci of this species have not been thoroughly annotated.

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The peopling history of the Yellow River basin (YR) remains largely unexplored due to the limited number of ancient genomes. Our study sheds light on the dynamic demographic history of the YR by co-analyzing previously published genomes and 31 newly generated Late Neolithic to Iron Age genomes from Shandong in the lower YR and the Central Plain in the middle YR. Our analysis reveals the population structure in Shandong and the Central Plain in the Late Neolithic Longshan cultural period.

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This study aimed to investigate the effects of MCC950 in a rat model of sepsis-associated encephalopathy (SAE). Adult male rats were randomly assigned to 12 groups according to the surgery or treatment received and evaluation times. The SAE model was established using the cecal ligation and puncture (CLP) method.

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Predictions of student performance are important to the education system as a whole, helping students to know how their learning is changing and adjusting teachers' and school policymakers' plans for their future growth. However, selecting meaningful features from the huge amount of educational data is challenging, so the dimensionality of student achievement features needs to be reduced. Based on this motivation, this paper proposes an improved Binary Snake Optimizer (MBSO) as a wrapped feature selection model, taking the Mat and Por student achievement data in the UCI database as an example, and comparing the MBSO feature selection model with other feature methods, the MBSO is able to select features with strong correlation to the students and the average number of student features selected reaches a minimum of 7.

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Objective: This study focuses on the development and evaluation of nanostructured lipid carriers (NLCs) loaded with aloperine as a potential therapeutic approach for the treatment of pulmonary arterial hypertension.

Methods: The NLCs were designed to enhance the solubility, stability, and bioavailability of aloperine, a compound with vasodilatory and anti-inflammatory properties. Through a series of experiments including single-factor experimentation, transmission electron microscopy, high-performance liquid chromatography, in vivo pharmacokinetics, and tissue distribution studies, we assessed the physicochemical properties, drug release profiles, and in vitro and in vivo performance of this novel nanocarrier.

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Background: Human brucellosis is the most common bacterial zoonosis worldwide, with brucella spondylitis (BS) being one of its most severe forms, potentially leading to spinal deformity or paralysis. This study aims to provide a comprehensive overview of the current status and research trends in the BS field using bibliometric methods.

Methods: Publications on BS from January 1, 1980, to March 24, 2024, were retrieved from the Web of Science database.

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Breast cancer (BC) is a common malignant tumor. BC is serious and has a high mortality rate. The incidence of BC has increased in recent years.

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In ordered magnets, the elementary excitations are spin waves (magnons), which obey Bose-Einstein statistics. Similarly to Cooper pairs in superconductors, magnons can be paired into bound states under attractive interactions. The Zeeman coupling to a magnetic field is able to tune the particle density through a quantum critical point, beyond which a 'hidden order' is predicted to exist.

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Article Synopsis
  • This study used computational fluid dynamics (CFD) to explore how blood flow dynamics in the draining veins of arteriovenous malformations (AVMs) relate to whether they rupture or not.
  • Researchers analyzed data from computed tomography angiography (CTA) and found that while the shape of the veins was similar in ruptured and unruptured cases, ruptured AVMs had significantly higher intravascular pressure and wall shear stress (WSS) in specific vein segments.
  • The findings suggest that ruptured AVMs are associated with higher blood flow velocity and pressure, particularly in the posterior segments of the draining veins, which may help in understanding AVM rupture mechanisms.
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In this study, the dynamic effects of ultrasonic treatment (0-400 W) on the volatile flavor compounds of pumpkin juice under different storage periods were investigated systematically using a combination of headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) and gas chromatography-ion mobility spectrometry (GC-IMS) techniques. A total of 139 and 46 volatile organic compounds (VOCs) were identified by GC-MS and GC-IMS, respectively. The results indicated that complex changes in volatile components occurred during storage.

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The origin of life has long been a central scientific challenge, with various hypotheses proposed. The chemical evolution, which supposes that inorganic molecules can transform into organic molecules and subsequent primitive cells, laid the foundation for modern theories. Inorganic minerals are believed to play crucial catalytic roles in the process.

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Soil heavy metal (HM) pollution is a prominent global environmental problem. Understanding the risk characteristics and quantitative analysis of potential sources of soil HM pollution is of great significance for accurate prevention and control, scientific management, and safe utilization of soil resources. In the surface soil of Shanxian County, the contents of eight HMs, such as As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn, were collected and identified in 330 surface soil samples.

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Cryogenic crystal bolometer plays a crucial role in searching for neutrinoless double-beta (0νββ) decay, which is a rare process that could determine the Majorana nature of neutrinos. The flagship bolometer experiment-CUORE (Cryogenic Underground Observatory for Rare Events)-operating at the Gran Sasso underground laboratory [Laboratori Nazionali del Gran Sasso (LNGS)] as the world's first ton-scale bolometric detector has achieved great success and well demonstrated advantages of the bolometric technology for the 0νββ study. The proposed upgrade of CUORE-the CUPID project-aims to achieve higher sensitivity with orders of magnitude background reduction by utilizing scintillating crystals and dual readout technology to exclude most of the background events dominated by alpha particles.

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Inhibitory interneurons are highly heterogeneous circuit elements often characterized by cell biological properties, but how these factors relate to specific roles underlying complex behavior remains poorly understood. Using chronic silicon probe recordings, we demonstrate that distinct interneuron groups perform different inhibitory roles within HVC, a song production circuit in the zebra finch forebrain. To link these functional subtypes to molecular identity, we performed two-photon targeted electrophysiological recordings of HVC interneurons followed by post hoc immunohistochemistry of subtype-specific markers.

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