Publications by authors named "Zhiming Yan"

We describe two concise, three-step routes for the individual synthesis of 27-deoxywithaferin A () and 4--5,6-deoxywithaferin A () from withaferin A (). The protection strategy for the double bond of enone with thiophenol and the conjugate reduction of the epoxy group are important in generating these products, with an overall yield of 40%. The absolute configuration of 4--5,6-deoxywithaferin A () has been confirmed by X-ray crystallography.

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, commonly known as the two-spotted spider mite, is a highly adaptable and polyphagous arthropod in the family Tetranychidae, capable of feeding on over 1200 plant species, including strawberries ( Duch.). The fitness and microbiota of herbivorous arthropods can vary significantly across different plant species and cultivars.

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Strawberry () is a globally important economic crop valued for its nutritional and commercial significance. However, its growth is frequently challenged by various biotic and abiotic stresses. To enhance strawberry root development and resilience, we engineered a NJAU4742 strain to overexpress the gene, which encodes a plant cell-wall-loosening protein known to facilitate fungal penetration and colonization.

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Earthworms have been extensively studied as ancient soil invertebrates, that are highly diverse. Previous studies of these invertebrates have mainly focused on their ecosystem services, medicinal value, and ecological habits. However, their genomic analysis remains inadequate.

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Background: Utilizating the plant endophytic microbiomes to enhance pathogen resistance in crop production is an emerging alternative method to chemical pesticides. However, research on the composition and role of microbial communities related to perennial fruit plants, such as the strawberry, is still limited.

Methods: We provide a comprehensive description of the composition and diversity of fungal communities in three niches (root, stem, and leaf) of three strawberry cultivars ('White Elves', 'Tokun', and 'Akihime') using internal transcribed spacer (ITS) rRNA amplicon sequencing and isolation culture methods.

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Strawberry (Fragaria × ananassa) is the most widely cultivated small berries in the world. They are not only delicious, juicy, and nutritious, but also have important economic value. However, current research on endophytic bacteria related to strawberry is limited.

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To optimize the shut-in time for hydraulic fracturing assisted oil displacement in offshore low-permeability reservoirs, a coupled mathematical model encompassing injection, shut-in well, and production is established. The accuracy of the model is validated using production data. The law of pressure diffusion and oil-water two-phase flow during the shut-in well process is clarified, and the mechanism of hydraulic fracturing assisted oil displacement to enhance oil recovery is summarized.

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High performance adsorbents are crucial for improving the efficiency of sample pretreatment and ensuring the accuracy and precision of analytical results. In this study, covalent organic framework COF-SCU1 was modified with metal-organic framework ZIF-8 for efficient extraction of toxic basic dyes in food. The prepared COF-SCU1@ZIF-8 exhibited improved dispersibility and more surface negative charges compared to COF-SCU1, thereby showing enhanced adsorption performance for auramine O, rhodamine B, basic orange 21, basic orange 22 and methylene blue.

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Dual modulation of FXR and HSD17B13 presents a promising strategy for treating metabolic dysfunction-associated fatty liver disease (MAFLD) and metabolic dysfunction-associated steatohepatitis (MASH). Compound , a groundbreaking dual modulator of FXR and HSD17B13, validates the concept of significantly enhancing liver function, reducing inflammation and fibrosis across various MAFLD models.

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There is an urgent need for effective treatments targeting comorbidities of type 2 diabetes (T2DM) and obesity. Developing dual agonists of glucagon-like peptide 1 receptor (GLP-1R) and neuropeptide Y receptor type 2 (NPY2R) with combined PYY and GLP-1 bioactivity is promising. However, designing such dual agonists that effectively control glycemia and reduce weight while minimizing gastrointestinal side effects is challenging.

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Article Synopsis
  • Hypochlorous acid (HClO) is a reactive oxygen species produced in mitochondria, and its high levels are associated with various diseases, making its detection crucial in medicine.
  • A new dual-modality probe called MB-ClO has been developed, which uses near-infrared fluorescence (NIRF) and photoacoustic (PA) imaging techniques to accurately and sensitively detect HClO in biological systems.
  • MB-ClO shows low toxicity and good water solubility, has a fast response time, and has been successfully tested in a mouse model of rheumatoid arthritis, highlighting its potential for biomedical applications.
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  • * The presence of SiO glass beads in the system improved discharge efficiency, resulting in a 39.02% increase in discharge charge and a 15% increase in output power compared to using plasma alone.
  • * The catalyst created a 'microreaction zone' that enhanced gas turbulence and optimized CO conversion, reaching ratios of 20.64% for CO conversion, 15.74% for CO generation, and improving energy efficiency to 1.864%, while facilitating the generation of excited-state CO and oxygen vacancies.
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  • - Polyploidy significantly enhances genetic diversity in plants, influencing the production of volatile organic compounds (VOCs) that contribute to the aroma of economically important fruits like strawberries, apples, and cherries
  • - The review discusses key biochemical pathways and enzymes involved in VOC biosynthesis, focusing on terpenoids, esters, and others, while highlighting how polyploidy and hybridization create novel pathways for greater aroma diversity
  • - Findings suggest that understanding these genetic and biochemical interactions can inform breeding strategies to improve fruit quality and meet consumer preferences, paving the way for advancements in plant biology and agriculture
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  • The study focuses on a composite material, CuInS@PPy, created using a method that involves both chemical vapor transport and in situ polymerization, resulting in a nanostructured electrode.
  • The polypyrrole (PPy) coating enhances the composite's conductivity, minimizes structural changes during battery cycling, and preserves the material’s integrity.
  • The CuInS@PPy electrode demonstrates excellent performance for sodium-ion batteries, achieving a capacity of 404.8 mA h g at a high current density of 4 A g over 2500 cycles due to its unique electrochemical mechanisms and high conductivity.
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  • The rise in obesity and type 2 diabetes mellitus (T2DM) raises concerns, with glucagon-like peptide 1 (GLP-1) emerging as a potential treatment due to its role in glucose regulation and appetite control.
  • GLP-1 receptor agonists (GLP-1RAs) have shown significant efficacy in managing T2DM and promoting weight loss, leading to their classification as a breakthrough in diabetes care.
  • New classes of gut hormone receptor agonists, including tirzepatide, have gained FDA approval and demonstrate remarkable benefits in blood glucose reduction and weight loss, suggesting a transformative approach to treating obesity and T2DM.
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  • Heterostructured FeO/FeS hollow fibers were created using electrospinning, followed by calcination and sulfuration treatments.
  • The combination of a hollow design and an internal electric field in the heterostructure enhances the performance of the composite anode.
  • The FeO/FeS anode shows impressive specific capacity of 947 mA h g after 100 cycles and maintains good stability with 730 mA h g after 1000 cycles.
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  • This study investigates how endophytic microbial communities in strawberries are affected by pathogen infection, particularly in healthy vs. wilt-infected plants.
  • Using sequencing techniques, researchers found that both bacterial and fungal diversity decreased in the infected strawberry compartments (roots, stems, leaves) compared to healthy ones.
  • Certain beneficial bacterial and fungal genera were more abundant in healthy plants, while specific harmful ones increased in infected samples, highlighting the impact of disease on microbial composition and providing insights for managing strawberry wilt.
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  • The study aimed to discover new GLP-1 analogues from natural sources, particularly focusing on bullfrog GLP-1 (bGLP-1), which proved to be the most potent.
  • Starting with bGLP-1, the researchers optimized its structure to create a powerful analogue that outperformed semaglutide in controlling food intake, blood sugar levels, and body weight.
  • The research also involved designing dual and triple receptor agonists based on bGLP-1, which showed promising therapeutic effects in managing lipid levels, glycemic control, and body weight, suggesting a viable path for developing treatments for obesity and diabetes.
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  • Capsaicin and its analogues were developed as potential new agents to combat oxidative stress and protect nerve cells.
  • Several analogues demonstrated impressive antioxidant properties, with one compound (3k) showing the strongest activity, outperforming the known antioxidant quercetin.
  • The research indicated that compound 3k not only improved cell survival against oxidative damage but also helped reduce harmful reactive oxygen species and supported mitochondrial function in nerve cells.
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  • Celastrol is being researched as a potential anticancer drug, leading to the creation of 28 new derivatives with specific chemical modifications.
  • Researchers tested these derivatives on human cancer and normal cells, comparing their effectiveness to celastrol and cisplatin.
  • Among the new compounds, derivative 2f showed the strongest effectiveness against HOS cancer cells, indicating it could be a promising option for osteosarcoma treatment.
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  • A new unimolecular triple agonist peptide (3b) has been developed to simultaneously target GLP-1, glucagon, and Y receptors for improved treatment of type 2 diabetes and obesity.
  • The peptide showed strong activity in reducing food intake and enhancing metabolic outcomes without causing nausea in test subjects.
  • In mouse models, 3b was more effective at lower doses for weight loss and glycemic control compared to existing therapies, highlighting its potential as a novel treatment for obesity and diabetes.
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  • GLP-1R and YR dual agonists show promise in treating obesity and type 2 diabetes by targeting two receptors simultaneously.
  • A new peptide was developed through optimization methods, demonstrating superior effects on blood sugar and weight loss compared to single receptor therapies in obese mice.
  • In addition, this dual agonist significantly improved liver health by lowering triglycerides and cholesterol in mice with diet-induced liver issues, indicating its potential as a comprehensive treatment for metabolic disorders.
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  • GLP-1 and glucagon receptor dual agonists have shown promise for treating obesity and diabetes, with new studies indicating that combining GLP-1 with CCK can enhance pancreatic function and glycemic control.
  • In experiments, a new tri-agonist peptide (xGLP/GCG/gastrin) demonstrated stronger anti-diabetes and anti-obesity effects in mice compared to existing treatments like liraglutide and ZP3022.
  • The findings suggest that xGLP-1/GCG/gastrin could be a highly effective therapeutic option for managing obesity and diabetes.
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  • The use of gastrointestinal hormones for metabolic disease treatment is gaining traction, particularly the combination of CCK-1R and GLP-1R agonists, which showed better metabolic effects in obese rodents.
  • Novel co-agonists were developed by linking GLP-1R and CCK-1R agonists, showing strong effectiveness in lowering blood sugar and improved metabolic markers compared to existing treatments like semaglutide.
  • In animal studies, these new co-agonists exhibited significant benefits in weight loss and glucose regulation without any side effects, highlighting their potential as a promising therapy for metabolic disorders.
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  • Covalent organic frameworks (COFs) are gaining interest in sample preparation but their small size limits their use in solid-phase extraction (SPE).
  • Researchers synthesized core-shell MWNTs@COFs composites (MWNTs@SNW-1) using multiwalled nanotubes as a substrate, achieving improved surface area, thermal stability, and adsorption capacity.
  • The composites were utilized in SPE to extract phytohormones, demonstrating effective extraction parameters and excellent analytical performance for detecting these compounds in fruit juices.
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