Publications by authors named "Hao Nan"

The remarkable capability of Tardigrade to survive under extreme conditions has been partially attributed to Dsup, an intrinsically disordered, highly positively charged protein. Dsup has been shown to bind to DNA in vitro, a property that has been associated with the capability of Dsup to exhibit stress-protective effects when expressed in mammalian cells. However, DNA binding of Dsup has not been visualized in living cells and expression of Dsup in different cell types was associated with either protective or detrimental effects.

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Alzheimer's disease (AD) is the most common type of dementia. Studies have shown that neuronal cell cycle re-entry is an abnormal change in the early stage of AD, and it is also one of the key reasons for mediating neuronal death. The mechanism of acupuncture and moxibustion in treating AD may be related to the regulation of abnormal cell cycle.

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Background: Nanozyme is a kind of biomimetic enzyme with unique properties and catalytic function of nanomaterials. Various nanozymes have been applied in the development of visual biosensors because of its excellent stability and availability. Nevertheless, the current applications of nanozymes primarily focus on colorimetric sensing based on color changes, which is susceptible to external factors interference including sample solution color and ambient light.

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The potential of hyperspectral imaging and X-ray techniques for the non-destructive determination of the ginsenosides Rg1 + Re and Rb1 in ginseng was investigated. The random forest (RF) models were established using spectral information extracted from hyperspectral data to predict ginsenosides content. The RF model was optimized by data pre-processing methods and feature screening methods.

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Article Synopsis
  • Understanding how cells age is important for extending lifespan and studying age-related diseases.
  • Yeast cells serve as a useful model due to their genetics and short cell cycle, revealing two distinct aging modes linked to nucleolar and mitochondrial declines.
  • A developed model suggests that aging affects how yeast cells grow and stabilize their buds, specifically how they insert new materials at the bud tip, potentially influencing the shape and growth of these buds.
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Gastric cancer (GC) is a common malignant disease that has a fifth highest incidence and fourth highest mortality worldwide. The Warburg effect is a common phenomenon observed in tumors, which suggests that tumor cells would enhance glucose uptake by overexpressing multiple glucose transporters. Sodium glucose transporter 2 (SGLT2) is one of glucose transporters which highly expressed in several cancers, but its role in gastric cancer is still unclear.

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With global climate change, the frequent occurrence of intense rainfall and aggravation of waterlogging disasters have severely threatened the plant growth and fruit quality of grapevines, which are commercially important fruit crops worldwide. There is accordingly an imperative to clarify the responses of grapevine to waterlogging and to propose appropriate remedial measures. Strigolactone (SL) is a phytohormone associated with plant abiotic stress tolerance, while, its function in plant responses to waterlogging stress remain undetermined.

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Cinnamic acid and geraniol are two well-known antifungal natural products and widely applied in food and cosmetics industries. To discover novel natural product-based fungicide candidates with more potent activity and good ecological compatibility for the management of plant diseases, a series of cinnamic acid-geraniol hybrids were prepared by means of molecular hybridization and their chemical structures were well confirmed by spectral analysis. The antifungal activities of the target compounds against three phytopathogenic fungi Fusarium graminearum, Gaeumannomyces graminis (Sacc.

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Cellular longevity is regulated by both genetic and environmental factors. However, the interactions of these factors in the context of aging remain largely unclear. Here, we formulate a mathematical model for dynamic glucose modulation of a core gene circuit in yeast aging, which not only guided the design of pro-longevity interventions but also revealed the theoretical principles underlying these interventions.

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The geographical origin of Panax ginseng significantly influences its nutritional value and chemical composition, which in turn affects its market price. Traditional methods for analyzing these differences are often time-consuming and require substantial quantities of reagents, rendering them inefficient. Therefore, hyperspectral imaging (HSI) in conjunction with X-ray technology were used for the swift and non-destructive traceability of Panax ginseng origin.

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Melanoma showcases a complex interplay of genetic alterations and intra- and inter-cellular morphological changes during metastatic transformation. While pivotal, the role of specific mutations in dictating these changes still needs to be fully elucidated. Telomerase promoter mutations (TERTp mutations) significantly influence melanoma's progression, invasiveness, and resistance to various emerging treatments, including chemical inhibitors, telomerase inhibitors, targeted therapy, and immunotherapies.

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Traditional visual biosensing platforms rely on color to display detection results, which can be influenced by individual visual abilities, equipment, parameters, and lighting conditions during photo capture. This limitation significantly impedes the advancement of next-generation portable electrochemical biosensors. Therefore, we propose a visual biosensing device that utilizes distance as an indicator, enabling the facile determination of the length of discoloration, which is inversely proportional to the concentration of the target analyte.

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Background: Refractory Helicobacter pylori (H. pylori) infection inevitably increase the difficulty of drug selection. Here, we described our experience with the use of a novel tetravalent IgY against H.

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Article Synopsis
  • Emerging evidence shows a link between gut microbiota and bone health, particularly bone mineral density (BMD) in postmenopausal women.
  • The study compared microbiota and metabolite profiles in postmenopausal women with normal BMD and those with osteoporosis (OS), finding significant differences in bacterial diversity and serum metabolites.
  • Key metabolites like etiocholanolone and testosterone sulfate were linked to normal BMD, particularly through pathways related to tryptophan metabolism, suggesting that gut health may influence bone density.
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Methyl paraoxon (MP) is a highly toxic, efficient and broad-spectrum organophosphorus pesticide, which poses significant risks to ecological environment and human health. Many detection methods for MP are based on the enzyme catalytic or inhibition effect. But natural biological enzymes are relatively expensive and easy to be inactivated with a short service life.

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A data fusion strategy based on near-infrared (NIR) and mid-infrared (MIR) spectroscopy techniques were developed for rapid origin identification and quality evaluation of Lonicerae japonicae flos (LJF). A high-level data fusion for origin identification was formed using the soft voting method. This data fusion model achieved accuracy, log-loss value and Kappa value of 95.

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Article Synopsis
  • CRISPR/Cas9 is a powerful tool for creating genetic knock-ins, allowing for precise tagging of genes in cells, particularly in macrophages, while avoiding random insertion complications associated with viral vectors.* -
  • The described protocol outlines how to design and test CRISPR guide RNAs and donor plasmids for use in RAW 264.7 mouse macrophage-like cells, enabling the creation of clonal populations with endogenous knock-ins at various genomic loci.* -
  • This technique utilizes circular plasmid DNA and an all-in-one expression system to facilitate fluorescent protein tagging, and it also provides guidelines for setting up imaging experiments to monitor fluorescence in edited cells.*
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In this work, a potential-controlled electrochromic visual biosensor was developed for detecting zearalenone (ZEN) using a distance readout strategy. The sensor chip includes a square detection area and a folded signal output area created with laser etching technology. The detection area is modified with graphene oxide and ZEN aptamer, while Prussian blue (PB) is electrodeposited onto the signal output channel.

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Clinical trial is a crucial step in the development of a new therapy (e.g., medication) and is remarkably expensive and time-consuming.

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Nine caffeoyl derivatives (), including two new dicaffeoyl glycosides, brevicaudatosides A and B ( and ), and six flavonoids (), were identified from overground DC. Compounds and exhibited significant oral toxicities against Harris with LC (half-lethal concentration) values of 0.12 and 0.

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Tetracyclines are currently the most commonly used class of antibiotics, and their residue issue significantly impacts public health safety. In this study, a surface modification of perovskite with cetyltrimethylammonium bromide led to the generation of stable electrochemiluminescence (ECL) emitters in aqueous systems and improved the biocompatibility of perovskite. A perovskite quantum dot-based ECL sensing strategy was developed.

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Article Synopsis
  • Understanding cellular aging is essential for extending lifespan and studying age-related diseases, with yeast cells serving as a key model due to their genetics and lifespan.
  • Recent experiments identified two distinct aging modes in yeast, focusing on declines in nucleolar and mitochondrial functions and showed different behaviors in young cells.
  • A developed chemical-mechanical model revealed that bud morphogenesis during aging is influenced by material insertion at the bud tip and changes in signaling, indicating that aging can impair these processes.
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To discover new botanical products-based insecticide candidates, 14 triterpenoid saponins (-) including four new ones, obscurosides A-D (-), were isolated from Maxim as potential agrochemicals against Harris and (L.). Compounds - were characterized by a rare ribose substitution at C-3, and was a bidesmoside glycosylated at the rare C-23 and C-28 positions of the oleanane aglycone.

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Alzheimer's disease (AD) is a neurodegenerative disease characterized by progressive loss of neurons in the brain. However, there are no effective drugs for AD. Mesenchymal stem cell-derived extracellular vesicles (MSCs-EVs), as a new mediator of intercellular communication, are associated with low immunogenicity, low risk of tumor formation, and good safety profile.

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