Publications by authors named "Long Yan"

Background: Anthocyanin is an important class of water-soluble pigments that are widely distributed in various tissues of plants, and it not only facilitates diverse color changes but also plays important roles in various biological processes. Maize silk, serving as an important reproductive organ and displaying a diverse range of colors, plays an indispensable role in biotic resistance through its possession of anthocyanin. However, the copy numbers, characteristics, and expression patterns of genes involved in maize anthocyanin biosynthesis are not fully understood.

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Vitamin A and its primary active derivative, all-trans retinoic acid (RA), are endogenous signaling molecules essential for numerous biological processes, including cell proliferation, differentiation, and immune modulation. Owing to its differentiation-inducing effect, RA was the first differentiating agent approved for the clinical treatment of acute myeloid leukemia. While the classical mechanisms of RA signaling involve nuclear receptors, such as retinoic acid receptors (RARs), emerging evidence suggests that RA also engages in non-covalent and covalent interactions with a broader range of proteins.

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Endoplasmic reticulum (ER) stress is crucially involved in inflammatory bowel disease (IBD), but the mechanisms remain incompletely understood. This study aimed to elucidate how ER stress promotes inflammation in IBD. ER stress marker Grp78 and NOD2 in colon tissues of Crohn's disease (CD) patients and IBD model mice were detected by immunohistochemical analysis.

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Based on the focal adhesion kinase(FAK)/steroid receptor coactivator(Src)/extracellular regulated protein kinase(ERK) pathway, this study explored the effects of Xihuang Pills on angiogenesis, invasion, and metastasis in prostate cancer. Liquid chromatography-tandem mass spectrometry(LC-MS/MS) was used to analyze and identify the active ingredients of Xihuang Pills. Bioinformatics techniques, including R language and Perl programs, were employed to analyze the interactions between prostate cancer-related targets and the potential targets of Xihuang Pills.

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polysaccharide (CPP) and rare element selenium (Se) have been proved to exert various biological activities, and our previous study demonstrated that selenium nanoparticles modified with CPP (CPP-SeNPs) possessed significantly enhanced tumor cytotoxicity in vitro. This study aimed to investigated the inhibitory effects of CPP-SeNPs complex on H22 solid tumors via immune enhancement. In this study, the H22 tumor-bearing mice model was constructed, and the potential mechanisms of CPP-SeNPs antitumor effects were further explored by evaluating cytokines expression levels, immune cells activities and tumor cells apoptotic indicators in each group.

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Optical filtering is an indispensable part of fluorescence microscopy for selectively highlighting molecules labeled with a specific fluorophore and suppressing background noise. However, the utilization of optical filtering sets increases the complexity, size, and cost of microscopic systems, making them less suitable for multifluorescence channel, high-speed imaging. Here, we present filter-free fluorescence microscopic imaging enabled with deep learning-based digital spectral filtering.

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Article Synopsis
  • This study explores how resting-state EEG can reveal neurophysiological markers linked to impulsivity in individuals addicted to gambling or methamphetamine, compared to healthy controls.
  • Participants from three groups (gamblers, methamphetamine users, and healthy controls) underwent EEG recordings and impulsivity assessments, revealing significant differences in impulsivity traits and behaviors among the groups.
  • Findings indicated that gambling addicts showed the highest overall impulsivity, methamphetamine users had greater attentional impulsivity, and specific EEG connectivity patterns distinguished addicts from healthy individuals, highlighting the importance of these neural mechanisms in understanding addiction-related impulsivity.
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With the widespread application of antibiotics in the medical field, associated wastewater pollution has become a critical environmental issue, creating potential risks to ecosystems and public health. This study synthesized three novel nanocomposite materials, ZIF-8@h-BN-X, using an in-situ growth method by adjusting h-BN content. Compared to pure two-dimensional hexagonal boron nitride (h-BN), their adsorption capacities for ofloxacin (OFL) in solution were evaluated.

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To report a novel variation in the TRIM8 gene in a Chinese patient who developed focal segmental glomerulosclerosis (FSGS) and neurogenic bladder. Retrospective analysis of the clinical manifestations, laboratory results, renal biopsy results, and genetic data of the patient with FSGS complicated with neurogenic bladder. The patient was a 6-year and 8-month-old Chinese Zang ethnic boy with low-set ears, widely-spaced eyes (inner canthal distance exceeds the 95th percentile of normal inner canthal distance), a small jaw, and a short neck.

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Anxiety disorders are one of the most epidemic and chronic psychiatric disorders. An incomplete understanding of anxiety pathophysiology has limited the development of highly effective drugs against these disorders. GPR17 has been shown to be involved in multiple sclerosis and some acute brain injury disorders.

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The association between drug-induced rewards and environmental cues represents a promising strategy to address addiction. However, the neural networks and molecular mechanisms orchestrating methamphetamine (MA)-associated memories remain incompletely characterized. In this study, we demonstrated that AdipoRon (AR), a specific adiponectin receptor (AdipoR) agonist, inhibits the formation of MA-induced conditioned place preference (CPP) in MA-conditioned mice, accompanied by suppression of basolateral amygdala (BLA) CaMKIIα neuron activity.

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Article Synopsis
  • A multi-index nomogram prediction model was developed to assess clinically significant prostate cancer by integrating PI-RADS V2.1 scores, quantitative MRI parameters, and clinical factors in a study involving over 2000 patients.
  • The model's effectiveness was evaluated using various statistical methods, including AUC (Area Under the Curve), revealing high sensitivity and specificity, particularly with two models: one combining PI-RADS and PSAD, and another that added ADCmean.
  • Validation results indicated strong performance in predicting CSPCa across both internal and external cohorts, with no significant difference found between predicted and actual probabilities, supporting the model's reliability.
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  • Soybean is a crucial crop for protein and oil, but salt stress significantly reduces its yield by disrupting vital processes like photosynthesis and growth.
  • This study analyzed data from 563 soybean samples globally to conduct a Genome-Wide Association Study (GWAS) aimed at identifying genetic markers (SNPs) linked to salt tolerance.
  • Ten significant SNPs were found, along with candidate genes, which can aid in developing salt-tolerant soybean varieties, demonstrating the potential for effective genomic selection.
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Background: With increasing global limate warm, high temperature (HT) is one of limiting factors for soybean yield and quality. Exploring HT resistance-related functional genes and their corresponding molecular mechanisms is of great value. In our previous report, compared with HD14 (HT sensitive), JD21 is an HT-resistant variety, and further analysis of the transcriptome and proteome has revealed the HT tolerance mechanism of JD21 anthers.

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Purpose: To explore the protective effects and mechanisms of Jiawei Qifuyin on APP/PS1 mice, a model for Alzheimer's disease (AD).

Methods: Network pharmacology tools were used to predict anti-AD targets and signaling pathways affected by Jiawei Qifuyin. In vitro studies assessed antioxidant and oxygen radical scavenging abilities, immune cell proliferation, and inflammatory cytokine levels in lipopolysaccharide-induced BV2 microglial cells.

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Article Synopsis
  • This study analyzed infections causing diarrhea in over 144,000 children in China from 2014 to 2023, focusing on adenoviruses and rotaviruses.
  • The results showed that rotavirus A had a higher infection rate (11.81%) compared to adenovirus (6.41%), but adenovirus infections surpassed rotavirus infections in 2021 and 2023.
  • The study observed significant fluctuations in infection rates over the decade, especially a sharp decline during 2020-2023, and highlighted the influence of environmental factors like temperature and sunshine on infection rates, which changed during the COVID-19 pandemic.
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Unlabelled: Background glycolipids (DOG), often left as residues after hot water extraction for polysaccharide production, are often discarded.

Methods: This study investigates the optimal extraction of DOG using response surface methodology, focusing on liquid-solid ratios, ethanol concentrations, extraction temperatures, and extraction times, while preliminarily analyzing DOG's structural properties. Additionally, the differences in antioxidant effects between DOG and ascorbic acid based on intestinal flora metabolism were further evaluated.

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The ovary is crucial for female reproduction and health, as it generates oocytes and secretes sex hormones. Transplantation of mesenchymal stem cells (MSCs) has been shown to alleviate pathological ovarian aging. However, it is unclear whether MSCs could benefit the naturally aging ovary.

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Background: The time to maximum (Tmax) profile based on computed tomography perfusion (CTP) provides a quantitative assessment of cerebral hemodynamic compromise. We aimed to delineate the Tmax profile in stroke patients with symptomatic intracranial atherosclerotic stenosis (ICAS) and to investigate its predictive role in stroke recurrence after optimal medical treatment.

Methods: Consecutive patients with ischemic stroke within 30 days attributed to 50%-99% ICAS were prospectively enrolled.

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Background: In patients with refractory intracranial atherosclerotic disease (ICAD), percutaneous transluminal balloon angioplasty (PTBA) is less complex but typically results in higher postprocedural residual stenosis than percutaneous transluminal angioplasty with stenting (PTAS).

Methods: This study included patients with symptomatic ICAD with 70-99% stenosis treated with either PTBA or PTAS. All patients underwent preprocedural and postprocedural CT perfusion, which was processed by automated RAPID software.

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Background: Fungi are prevalent pathogens that cause substantial yield losses of major crops. Ear rot (ER), which is primarily induced by Fusarium or Aspergillus species, poses a significant challenge to maize production worldwide. ER resistance is regulated by several small effect quantitative trait loci (QTLs).

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The selective activation of C=O bonds was the key challenge in the field of biomass utilization. Researchers worked on this purpose by developing high-active and high-selective catalysts. In this study, a Pd/α-MoC single-atom catalyst was synthesized and applied in selective hydrogenation of biomass-derived furfural with 96.

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Behavioural time scale plasticity (BTSP) is non-Hebbian plasticity induced by integrating presynaptic and postsynaptic components separated by a behaviourally relevant time scale (seconds). BTSP in hippocampal CA1 neurons underlies place cell formation. However, the molecular mechanisms that enable synapse-specific plasticity on a behavioural time scale are unknown.

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Purpose: To explore the potential risk factors for the occurrence of human cytomegalovirus (HCMV) retinitis (CMVR) in allogeneic hematopoietic stem cell transplantation (allo-HSCT) patients.

Methods: This is a retrospective, nested case-control study conducted in hematological patients with CMVR who underwent allo-HSCT. Patients diagnosed with CMVR after allo-HSCT were included as the case group, and those without CMVR were matched by a ratio of 1:2 and were recruited as controls.

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Behavioral despair is one of the clinical manifestations of major depressive disorder and an important cause of disability and death. However, the neural circuit mechanisms underlying behavioral despair are poorly understood. In a well-established chronic behavioral despair (CBD) mouse model, using a combination of viral tracing, in vivo fiber photometry, chemogenetic and optogenetic manipulations, in vitro electrophysiology, pharmacological profiling techniques, and behavioral tests, we investigated the neural circuit mechanisms in regulating behavioral despair.

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