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Traditional Chinese medicine Euodiae Fructus: botany, traditional use, phytochemistry, pharmacology, toxicity and quality control
Si, Jia Xiao, Xi, Ke Xu, Wei Chen, Jia, Yun Xin, Wen, Lin Yuan, Xian, Peng Zu, and Yun, Heng Shen
Natural Products and Bioprospecting    2023, 13 (1): 6-6.   DOI: 10.1007/s13659-023-00369-0
Abstract   PDF (3421KB)  
Euodiae Fructus, referred to as “Wuzhuyu” in Chinese, has been used as local and traditional herbal medicines in many regions, especially in China, Japan and Korea, for the treatment of gastrointestinal disorders, headache, emesis, aphtha, dermatophytosis, dysentery, etc. Substantial investigations into their chemical and pharmacological properties have been performed. Recently, interest in this plant has been focused on the different structural types of alkaloids like evodiamine, rutaecarpine, dehydroevodiamine and 1-methyl-2-undecyl-4(1H)-quinolone, which exhibit a wide range of pharmacological activities in preclinical models, such as anticancer, antibacterial, anti-inflammatory, anticardiovascular disease, etc. This review summarizes the up-to-date and comprehensive information concerning the botany, traditional uses, phytochemistry, pharmacology of Euodiae Fructus together with the toxicology and quality control, and discusses the possible direction and scope for future research on this plant.
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Pharmaceutical and nutraceutical potential of natural bioactive pigment: astaxanthin
Apurva D. Patil, Pramod J. Kasabe, Padma B. Dandge
Natural Products and Bioprospecting    2022, 12 (4): 25-25.   DOI: 10.1007/s13659-022-00347-y
Abstract   PDF (1932KB)  
Astaxanthin (3,3'-dihydroxy-β,β-carotene-4,4'-dione) is an orange-red, lipophilic keto-carotenoid pigment. It is majorly found in marine ecosystems particularly in aquatic animals such as salmon, shrimp, trout, krill, crayfish, and so on. It is also synthesized in microalgae Heamatococcus pluvialis, Chlorococcum, Chlorella zofingiensis, red yeast Phaffia rhodozyma and bacterium Paracoccus carotinifaciens. Some aquatic and terrestrial creatures regarded as a primary and secondary sources of the astaxanthin producing and accumulating it through their metabolic pathways. Astaxanthin is the powerful antioxidant, nutritional supplement as well as promising therapeutic compound, observed to have activities against different ravaging diseases and disorders. Researchers have reported remarkable bioactivities of astaxanthin against major non-communicable chronic diseases such as cardiovascular diseases, cancer, diabetes, neurodegenerative, and immune disorders. The current review discusses some structural aspects of astaxanthin. It further elaborates its multiple potencies such as antioxidant, anti-inflammatory, anti-proliferative, anti-cancer, anti-obese, anti-diabetic, anti-ageing, anti-TB, anti-viral, anti-COVID 19, neuro-protective, nephro-protective, and fertility-enhancing properties. These potencies make it a more precious entity in the preventions as well as treatments of prevalent systematic diseases and/or disorders. Also, the review is acknowledging and documenting its powerful bioactivities in relation with the pharmaceutical as well as nutraceutical applicability.
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Antiaging agents: safe interventions to slow aging and healthy life span extension
Ji-Kai Liu
Natural Products and Bioprospecting    2022, 12 (3): 18-18.   DOI: 10.1007/s13659-022-00339-y
Abstract   PDF (1831KB)  
Human longevity has increased dramatically during the past century. More than 20% of the 9 billion population of the world will exceed the age of 60 in 2050. Since the last three decades, some interventions and many preclinical studies have been found to show slowing aging and increasing the healthy lifespan of organisms from yeast, flies, rodents to nonhuman primates. The interventions are classified into two groups: lifestyle modifications and pharmacological/genetic manipulations. Some genetic pathways have been characterized to have a specific role in controlling aging and lifespan. Thus, all genes in the pathways are potential antiaging targets. Currently, many antiaging compounds target the calorie-restriction mimetic, autophagy induction, and putative enhancement of cell regeneration, epigenetic modulation of gene activity such as inhibition of histone deacetylases and DNA methyltransferases, are under development. It appears evident that the exploration of new targets for these antiaging agents based on biogerontological research provides an incredible opportunity for the healthcare and pharmaceutical industries. The present review focus on the properties of slow aging and healthy life span extension of natural products from various biological resources, endogenous substances, drugs, and synthetic compounds, as well as the mechanisms of targets for antiaging evaluation. These bioactive compounds that could benefit healthy aging and the potential role of life span extension are discussed.
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The genus Rumex (Polygonaceae): an ethnobotanical, phytochemical and pharmacological review
Jing-Juan Li, Yong-Xiang Li, Na Li, Hong-Tao Zhu, Dong Wang, Ying-Jun Zhang
Natural Products and Bioprospecting    2022, 12 (3): 21-21.   DOI: 10.1007/s13659-022-00346-z
Abstract   PDF (2412KB)  
Rumex L., a genus in Polygonaceae family with about 200 species, is growing widely around the world. Some Rumex species, called "sorrel" or "dock", have been used as food application and treatment of skin diseases and hemostasis after trauma by the local people of its growing areas for centuries. To date, 29 Rumex species have been studied to contain about 268 substances, including anthraquinones, flavonoids, naphthalenes, stilbenes, diterpene alkaloids, terpenes, lignans, and tannins. Crude extract of Rumex spp. and the pure isolates displayed various bioactivities, such as antibacterial, anti-inflammatory, antitumor, antioxidant, cardiovascular protection and antiaging activities. Rumex species have important potential to become a clinical medicinal source in future. This review covers research articles from 1900 to 2022, fetched from SciFinder, Web of Science, ResearchGate, CNKI and Google Scholar, using “Rumex” as a search term ("all fields") with no specific time frame set for the search. Thirty-five Rumex species were selected and summarized on their geographical distribution, edible parts, traditional uses, chemical research and pharmacological properties.
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The bibenzyl derivatives of Dendrobium officinale prevent UV-B irradiation induced photoaging via SIRT3
Ding-kang Chen, Hui-yan Shao, Liu Yang, Jiang-miao Hu
Natural Products and Bioprospecting    2022, 12 (1): 1-11.   DOI: 10.1007/s13659-022-00323-6
Abstract   PDF (2044KB)  
Dendrobium officinale is a valuable medicinal herb that is widely used in traditional Chinese medicine. The chemical constituents of D. officinale have attracted much attention and a large number of compounds have been reported including many bibenzyl derivatives. 13 bibenzyl derivatives from D. officinale were sent for molecular docking, surface plasmon resonance (SPR) assay and after detection of Mn-SOD and SIRT3 activities in or not in HaCaT cells, it was concluded that bibenzyl derivatives did not directly activate Mn-SOD but promoted SIRT3 proteins. In addition, HaCaT cells were irradiated with UV-B to induce an oxidative stress model in vitro to further verify the effect of bibenzyl derivatives. The results show that bibenzyl derivatives could directly bind to SIRT3, enhance the deacetylation and then activate Mn-SOD, so as to protect UV-B induced skin photoaging.
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Artemyrianosins A–J, cytotoxic germacrane-type sesquiterpene lactones from Artemisia myriantha
Xin Zhang, Yun-Bao Ma, Xiao-Feng He, Tian-Ze Li, Chang-An Geng, Li-Hua Su, Shuang Tang, Zhen Gao, Ji-Jun Chen
Natural Products and Bioprospecting    2022, 12 (3): 16-16.   DOI: 10.1007/s13659-022-00340-5
Abstract   PDF (1918KB)  
Ten new germacrane-type sesquiterpenoids, artemyrianosins A–J (110), were isolated from the aerial parts of Artemisia myriantha. Their structures were elucidated by spectral analyses including UV, IR, HRESIMS, 1D and 2D NMR, ECD and the absolute configurations of compounds 1 and 79 were characterized using X-ray crystallography. All isolates were tested their cytotoxicity against three human hepatoma cell lines (HepG2, Huh7, and SK-Hep-1), and compounds 13, 7, and 10 showed cytotoxicity with IC50 values ranging from 43.7 to 89.3 μM. Among them, the most active compound 3 exhibited activity against three human hepatoma cell lines with IC50 values of 43.7 μM (HepG2), 47.9 μM (Huh7), and 44.9 μM (SK-Hep-1).
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Lignans and sesquiterpenoids from the stems of Schisandra bicolor var. tuberculata
Shui-Mei Zhang, Kun Hu, Xiao-Nian Li, Han-Dong Sun, Pema-Tenzin Puno
Natural Products and Bioprospecting    2022, 12 (3): 19-19.   DOI: 10.1007/s13659-022-00342-3
Abstract   PDF (1353KB)  
A pair of new tetrahydrofuran lignan enantiomers, (±)-schibiculatin A [(±)-1], a new enedione lignan, schibiculatin B (2), two new cadinane-type sesquiterpenoids, schibiculatins C (3) and D (4), along with two known seco-cadinane-type sesquiterpenoids (5 and 6) and seven known miscellaneous lignans (713) were isolated from the stems of Schisandra bicolor var. tuberculata. The structures of 14 were elucidated by comprehensive analysis of their spectroscopic data, quantum chemical calculations, as well as single-crystal X-ray diffraction. A few isolated compounds were tested for their protective activities against corticosterone-induced apoptosis in PC12 cells. Among them, compounds 5 and 6 showed moderate activities.
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Ypsilandrosides U-Y, five new steroidal saponins from Ypsilandra thibetica
Wen-Tao Gao, Ling-Ling Yu, Jing Xie, Long-Gao Xiao, Shi-Juan Zhang, Wen-Yi Ma, Huan Yan, Hai-Yang Liu
Natural Products and Bioprospecting    2022, 12 (3): 17-17.   DOI: 10.1007/s13659-022-00337-0
Abstract   PDF (1194KB)  
Phytochemical reinvestigation on the whole plants of Ypsilandra thibetica obtained four new spirostanol glycosides, named ypsilandrosides U-X (14), and one new cholestanol glycoside, named ypsilandroside Y (5). Their structures have been established by extensive spectroscopic data and chemical methods. Among them, compound 4 is a rare spirostanol glycoside which possesses a novel 5(6 → 7) abeo-steroidal aglycone, while compound 1 is a first spirostanol bisdesmoside attached to C-3 and C-12, respectively, isolated from the genus Ypsilandra. The induced platelet aggregation activity of the isolates was tested.
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Natural products in cosmetics
Ji-Kai Liu
Natural Products and Bioprospecting    2022, 12 (6): 40-40.   DOI: 10.1007/s13659-022-00363-y
Abstract   PDF (2852KB)  
The global cosmetics market reached US$500 billion in 2017 and is expected to exceed US$800 billion by 2023, at around a 7% annual growth rate. The cosmetics industry is emerging as one of the fastest-growing industries of the past decade. Data shows that the Chinese cosmetics market was US$60 billion in 2021. It is expected to be the world’s number one consumer cosmetics market by 2050, with a size of approximately US$450 billion. The influence of social media and the internet has raised awareness of the risks associated with the usage of many chemicals in cosmetics and the health benefits of natural products derived from plants and other natural resources. As a result, the cosmetic industry is now paying more attention to natural products. The present review focus on the possible applications of natural products from various biological sources in skin care cosmetics, including topical care products, fragrances, moisturizers, UV protective, and anti-wrinkle products. In addition, the mechanisms of targets for evaluation of active ingredients in cosmetics and the possible benefits of these bioactive compounds in rejuvenation and health, and their potential role in cosmetics are also discussed.
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Preparation of a ε-caprolactonic diterpenoid derivate by unexpected oxidative cleavage/lactonization of 2-oxoaustroeupatol
Pablo A. Chacón-Morales, Juan M. Amaro-Luis, Luis Beltrán Rojas Fermín, Rémi Jacquet, Denis Deffieux, Laurent Pouységu, Stéphane Quideau
Natural Products and Bioprospecting    2022, 12 (3): 20-20.   DOI: 10.1007/s13659-022-00343-2
Abstract   PDF (1034KB)  
From aerial parts of Austroeupatorium inulifolium was isolated the ent-nor-furano triol labdane austroeupatol 1. The compound 1 was treated with IBX showing an unexpected selectivity at the potentially oxidizable sites of the substrate yielding the 2-oxoaustroeupatol (2) and 2,19-dioxoaustroeupatol (3). The treatment of 2 with sodium periodate yields a heterocyclic derivative (ε-caprolactone derivate 4) formed by oxidative cleavage and unexpected intramolecular attack of the hydroxymethylene (C-19) oxygen to the ketonic carbon (C-2). A plausible mechanistic pathway for the obtention of compound 4 is proposed.
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