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Related Concept Videos

Cancer Prevention02:59

Cancer Prevention

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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Fruit Development, Structure, and Function01:58

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Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
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Related Experiment Video

Updated: Mar 28, 2026

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
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[Studies on flavonoids from Derris eriocarpa].

Lun-xing Wang, Hong-guo Wu, Hua Zhang

    Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
    |December 19, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Nine novel flavone compounds were isolated from Derris eriocarpa, with one showing moderate activity against human cancer cells. This research expands the known chemical profile of this traditional Chinese medicine.

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    Area of Science:

    • Phytochemistry
    • Natural Products Chemistry
    • Medicinal Chemistry

    Context:

    • Derris eriocarpa, a legume, is a traditional Chinese medicine with known bioactivities.
    • Previous research identified triterpenoids, steroids, and fatty acids, but not flavones.
    • This study focuses on the under-explored flavone constituents of Derris eriocarpa.

    Purpose:

    • To isolate and characterize flavone compounds from Derris eriocarpa.
    • To identify novel chemical constituents of this medicinal plant.
    • To evaluate the potential bioactivity of isolated compounds.

    Summary:

    • Nine flavone compounds, including diosmetin, 3,3'-di-O-methylquercetin, afromosin, and others, were isolated from Derris eriocarpa using advanced chromatographic techniques.
    • Structural elucidation was performed using Mass Spectrometry (MS) and Nuclear Magnetic Resonance (NMR) spectroscopy.
    • This marks the first report of flavone isolation from Derris eriocarpa.

    Impact:

    • Expands the known phytochemical profile of Derris eriocarpa.
    • Identifies 3,3'-di-O-methylquercetin as a compound with moderate inhibitory activity against K562 and HEL human cancer cell lines.
    • Provides a foundation for further investigation into the medicinal potential of Derris eriocarpa flavones.