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    REVIEWS
    Natural and engineered xylosyl products from microbial source   Collect
    Jianzhao Qi, Shi-jie Kang, Ling Zhao, Jin-ming Gao, Chengwei Liu
    Natural Products and Bioprospecting. 2024, 14 (3): 13-13.   DOI: 10.1007/s13659-024-00435-1
    Abstract ( 562 )   HTML ()     PDF (4041KB) ( 528 )  
    Glycosylation is a prevalent post-modification found in natural products and has a significant impact on the structural diversity and activity variation of natural products. Glucosylation is the most common type of glycosylation, whereas xylosylation is relatively rare. Despite their unique chemical structures and beneficial activities, xylosylated natural products from microorganisms have received little attention. This review provides, for the first time, a comprehensive summary of 126 microbial-derived xylosylated natural products, including xylosyl-cyathane diterpenes, xylosylated triterpenes, xylosyl aromatic compounds, and others. Among these compounds, xylosyl-cyathane diterpenes represent the highest number of derivatives, followed by xylosylated triterpenes. Xylosyl compounds from bacterial sources have less defined structural profiles compared to those from fungi. The characterization of xylosyltransferase EriJ from Basidiomycota extended the structural diversity of xylosyl cyathane diterpenes. This work provides a valuable reference for the research and use of xylosyltransferase for drug discovery and synthetic chemistry. Further work is needed to explore the potential applications of microbial derived xylosyl compounds and to develop novel xylosyl transferases. With the deepening of genomic sequencing of medicinal fungi, more biosynthesis of bioactive xylosyl compounds is expected to be elucidated in the future.
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    Chemistry and biology of marine-derived Trichoderma metabolites   Collect
    Yin-Ping Song, Nai-Yun Ji
    Natural Products and Bioprospecting. 2024, 14 (3): 14-14.   DOI: 10.1007/s13659-024-00433-3
    Abstract ( 581 )   HTML ()     PDF (3879KB) ( 564 )  
    Marine-derived fungi of the genus Trichoderma have been surveyed for pharmaceuticals and agrochemicals since 1993, with various new secondary metabolites being characterized from the strains of marine animal, plant, sediment, and water origin. Chemical structures and biological activities of these metabolites are comprehensively reviewed herein up to the end of 2022 (covering 30 years). More than 70 strains that belong to at least 18 known Trichoderma species have been chemically investigated during this period. As a result, 445 new metabolites, including terpenes, steroids, polyketides, peptides, alkaloids, and others, have been identified, with over a half possessing antimicroalgal, zooplankton-toxic, antibacterial, antifungal, cytotoxic, anti-inflammatory, and other activities. The research is highlighted by the molecular diversity and antimicroalgal potency of terpenes and steroids. In addition, metabolic relevance along with co-culture induction in the production of new compounds is also concluded. Trichoderma strains of marine origin can transform and degrade heterogeneous molecules, but these functions need further exploration.
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    Current advances on the therapeutic potential of scutellarin: an updated review   Collect
    Yifei Xie, Guotong Sun, Yue Tao, Wen Zhang, Shiying Yang, Li Zhang, Yang Lu, Guanhua Du
    Natural Products and Bioprospecting. 2024, 14 (3): 20-20.   DOI: 10.1007/s13659-024-00441-3
    Abstract ( 564 )   HTML ()     PDF (1343KB) ( 551 )  
    Scutellarin is widely distributed in Scutellaria baicalensis, family Labiatae, and Calendula officinalis, family Asteraceae, and belongs to flavonoids. Scutellarin has a wide range of pharmacological activities, it is widely used in the treatment of cerebral infarction, angina pectoris, cerebral thrombosis, coronary heart disease, and other diseases. It is a natural product with great research and development prospects. In recent years, with in-depth research, researchers have found that wild scutellarin also has good therapeutic effects in anti-tumor, anti-inflammatory, anti-oxidation, anti-virus, treatment of metabolic diseases, and protection of kidney. The cancer treatment involves glioma, breast cancer, lung cancer, renal cancer, colon cancer, and so on. In this paper, the sources, pharmacological effects, in vivo and in vitro models of scutellarin were summarized in recent years, and the current research status and future direction of scutellarin were analyzed.
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    ORIGINAL ARTICLES
    Which is the optimal choice for neonates’ formula or breast milk?   Collect
    Yueqi Hu, Xing Wu, Li Zhou, Jikai Liu
    Natural Products and Bioprospecting. 2024, 14 (3): 21-21.   DOI: 10.1007/s13659-024-00444-0
    Abstract ( 568 )   HTML ()     PDF (2645KB) ( 582 )  
    The incidence of prematurity has been increasing since the twenty-first century. Premature neonates are extremely vulnerable and require a rich supply of nutrients, including carbohydrates, proteins, docosahexaenoic acid (DHA), arachidonic acid (ARA) and others. Typical breast milk serves as the primary source for infants under six months old to provide these nutrients. However, depending on the individual needs of preterm infants, a more diverse and intricate range of nutrients may be necessary. This paper provides a comprehensive review of the current research progress on the physical and chemical properties, biological activity, function, and structure of breast milk, as well as explores the relationship between the main components of milk globular membrane and infant growth. Additionally, compare the nutritional composition of milk from different mammals and newborn milk powder, providing a comprehensive understanding of the differences in milk composition and detailed reference for meeting daily nutritional needs during lactation.
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    Gastrodinol derivatives and prenylated flavones from the flower branch of Gastrodia elata   Collect
    Shi-Hui Qin, Zhi-Lan Li, Liu Yang, Jiang-Miao Hu
    Natural Products and Bioprospecting. 2024, 14 (3): 22-22.   DOI: 10.1007/s13659-024-00430-6
    Abstract ( 561 )   HTML ()     PDF (1590KB) ( 746 )  
    Based on the research progress and traditional usage with whole herbal of the TCM "Tianma", chemical studies herein on the flower branch of Gastrodia elata were carried out in-depth and got 13 compounds including the gastrodinols (1–4), the flavonoid morins (5–8, 11–12), together with the specialist mulberrofurans (9, 13) and gastrodiamide (10) for the first time from the species. The antibacterial and cholinesterase inhibitory activities were then evaluated and the results showed that compounds 5, 11, 12, 13 have good activity against anti-methicillin-resistant Staphylococcus aureus, and compounds 9, 13 had good acetylcholinesterase inhibitory activity. All these results provide new chemical composition for better understanding the traditional application of "Tianma" and for exploring new pharmacological ingredients.
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    Compounds from Agathis dammara exert hypoglycaemic activity by enhancing glucose uptake: lignans, terpenes and others   Collect
    Zhe-Wei Yu, Bang-Ping Cai, Su-Zhi Xie, Yi Zhang, Wen-Hui Wang, Shun-Zhi Liu, Yan-Lin Bin, Qi Chen, Mei-Juan Fang, Rong Qi, Ming-Yu Li, Ying-Kun Qiu
    Natural Products and Bioprospecting. 2024, 14 (3): 23-23.   DOI: 10.1007/s13659-024-00440-4
    Abstract ( 575 )   HTML ()     PDF (2205KB) ( 573 )  
    In this study, two new kaurane diterpenes (16, 17), together with 12 lignans (112), a triterpene (15), and two other compounds (13, 14) were isolated from the woods of Agathis dammara. The structure of the new compound was determined by HR ESIMS and 1D/2D NMR spectroscopy, and its absolute configuration was determined by electronic circular dichroism (ECD) exciton chirality method. Compounds 5, 11, 14 exhibit significant hypoglycaemic activity in zebrafish, and their mechanism of action is to enhance glucose uptake in zebrafish.
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    REVIEW
    Natural compounds proposed for the management of non-alcoholic fatty liver disease   Collect
    Théodora Merenda, Florian Juszczak, Elisabeth Ferier, Pierre Duez, Stéphanie Patris, Anne-Émilie Declèves, Amandine Nachtergael
    Natural Products and Bioprospecting. 2024, 14 (3): 24-24.   DOI: 10.1007/s13659-024-00445-z
    Abstract ( 564 )   HTML ()     PDF (1513KB) ( 512 )  
    Although non-alcoholic fatty liver disease (NAFLD) presents as an intricate condition characterized by a growing prevalence, the often-recommended lifestyle interventions mostly lack high-level evidence of efficacy and there are currently no effective drugs proposed for this indication. The present review delves into NAFLD pathology, its diverse underlying physiopathological mechanisms and the available in vitro, in vivo, and clinical evidence regarding the use of natural compounds for its management, through three pivotal targets (oxidative stress, cellular inflammation, and insulin resistance). The promising perspectives that natural compounds offer for NAFLD management underscore the need for additional clinical and lifestyle intervention trials. Encouraging further research will contribute to establishing more robust evidence and practical recommendations tailored to patients with varying NAFLD grades.
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    ORIGINAL ARTICLES
    Scutellarin ameliorates diabetic nephropathy via TGF-β1 signaling pathway   Collect
    Bangrui Huang, Rui Han, Hong Tan, Wenzhuo Zhu, Yang Li, Fakun Jiang, Chun Xie, Zundan Ren, Rou Shi
    Natural Products and Bioprospecting. 2024, 14 (3): 25-25.   DOI: 10.1007/s13659-024-00446-y
    Abstract ( 547 )   HTML ()     PDF (5612KB) ( 461 )  
    Breviscapine, a natural flavonoid mixture derived from the traditional Chinese herb Erigeron breviscapus (Vant.) Hand-Mazz, has demonstrated a promising potential in improving diabetic nephropathy (DN). However, the specific active constituent(s) responsible for its therapeutic effects and the underlying pharmacological mechanisms remain unclear. In this study, we aimed to investigate the impact of scutellarin, a constituent of breviscapine, on streptozotocin- induced diabetic nephropathy and elucidate its pharmacological mechanism(s). Our findings demonstrate that scutellarin effectively ameliorates various features of DN in vivo, including proteinuria, glomerular expansion, mesangial matrix accumulation, renal fibrosis, and podocyte injury. Mechanistically, scutellarin appears to exert its beneficial effects through modulation of the transforming growth factor-β1 (TGF-β1) signaling pathway, as well as its interaction with the extracellular signal-regulated kinase (Erk) and Wnt/β-catenin pathways.
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    Antiviral and anti-inflammatory activities of chemical constituents from twigs of Mosla chinensis Maxim   Collect
    Shi-Yan Feng, Na Jiang, Jia-Ying Yang, Lin-Yao Yang, Jiang-Chao Du, Xuan-Qin Chen, Dan Liu, Rong-Tao Li, Jin-Dong Zhong
    Natural Products and Bioprospecting. 2024, 14 (3): 26-26.   DOI: 10.1007/s13659-024-00448-w
    Abstract ( 545 )   HTML ()     PDF (2215KB) ( 569 )  
    Seven undescribed compounds, including three flavones (13), one phenylpropanoid (19), three monoaromatic hydrocarbons (2729), were isolated from the twigs of Mosla chinensis Maxim together with twenty-eight known compounds. The structures were characterized by HRESIMS, 1D and 2D NMR, and ECD spectroscopic techniques. Compound 20 displayed the most significant activity against A/WSN/33/2009 (H1N1) virus ( IC50 = 20.47 μM) compared to the positive control oseltamivir ( IC50 = 6.85 μM). Further research on the anti-influenza mechanism showed that compound 20 could bind to H1N1 virus surface antigen HA1 and inhibit the early attachment stage of the virus. Furthermore, compounds 9, 22, 23, and 25 displayed moderate inhibitory effects on the NO expression in LPS inducing Raw 264.7 cells with IC50 values of 22.78, 20.47, 27.66, and 30.14 μM, respectively.
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2024, Volume 14 Issue 3