Extraction, Isolation, and Structural Elucidation of Lignans from Natural Resources

Hye Mi Kim, Chul Young Kim

Lignans are a diverse class of plant-derived polyphenols that have attracted considerable interest for their broad biological activities and potential as functi...

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DOI: https://doi.org/10.20307/nps.2025.31.4.209

Areca catechu L.: A Comprehensive and Updated Review of its Phytochemical and Pharmacological Properties

Manh Tuan Ha, Thu Huong Tran, Jungmoo Huh, Seung Eui Min, Kang-Hyun Han, Yong-Bum Kim, Jeong Ah Kim, Byung Sun Min

L., the primary source of areca alkaloids, has long been considered the only species in the genus containing these compounds. However, a recent study detected ...

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DOI: https://doi.org/10.20307/nps.2025.31.4.236

Herbal Intervention Against Atherosclerosis through the Dual Lipid-Lowering and Antioxidant Actions of Caesalpinia bonducella

Thenmozhi Annadurai, Meenakshisundaram Karpakavalli, Abishek Balasundaram, Pandia Rajan Bava Dhareni, Narayanan Venkateshan

This study evaluated the cardioprotective potential of (L.) Roxb. seed extracts in obese rats fed a high-fat diet (HFD), aiming to improve fat metabolism, redu...

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DOI: https://doi.org/10.20307/nps.2025.31.4.251

Oolonghomobisflavan B Ameliorates Scopolamine-Induced Cognitive Impairment via BDNF-CREB Signaling and Antioxidant Mechanisms in Mice

Hae-Jin Park, Jaehoon Bae

Cognitive impairment, including memory deficits, is a major concern in neurological disorders. Natural polyphenolic compounds have emerged as promising neuropro...

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DOI: https://doi.org/10.20307/nps.2025.31.4.259

Quantitative HPLC-DAD Analysis of Gallic and Ellagic Acids and UVB-Protective Effects of Solvent Extracts of Quercus acuta Fruits

Haeju Ko, Ji-Ae Hong, Dong-Sung Lee, Hwan Lee, Yonguk Kim, Donghyuck Bae

Thunb. () is a subtropical, evergreen, broad-leaved tree with excellent carbon sequestration capacity and ecological adaptability. However, the phytochemical c...

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DOI: https://doi.org/10.20307/nps.2025.31.4.267

In Vitro Evaluation of the Anti-Proliferative and Anti-Diabetic Activities of Streptocaulon juventas Leaf Extracts

Tran Nhat Mai, Bui Thi Phuong, Tran Thi Huyen, Nguyen Minh Nam

, a medicinal plant traditionally used in Vietnam and other Southeast Asian countries, has been previously investigated for certain biological activities of its...

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DOI: https://doi.org/10.20307/nps.2025.31.4.278

Anti-Inflammatory and Immunoregulatory Activities In Vitro of Coumarins Isolated from the Twigs and Leaves of Wikstroemia indica (L.) C.A. Mey.

Van Lieu Nguyen, Van Anh Cao, Thi Thu Nguyen, Thi Hien Tran, Viet Dung Hoang, Thi Ha Do

Six coumarins were isolated from two bioactive fractions of the 70% ethanol extract from the twigs and leaves of (L.) C.A. Mey. (Thymelaeaceae), namely the eth...

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DOI: https://doi.org/10.20307/nps.2025.31.4.284

Poria cocos Extract Protects Feline Kidney Epithelial Cells from Oxidative Damage and Promotes Cell Growth

Daeun Moon, Yoon-A Kang, Minseo Jeon, Ji-Yeong Bae, Jinu Kim

Reactive oxygen species (ROS), particularly hydrogen peroxide (HO), are critical mediators of oxidative stress, which can lead to cellular damage and contribute...

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DOI: https://doi.org/10.20307/nps.2025.31.4.291

Antibacterial Activity of Stilbenes Isolated From Reynoutria japonica Against Vancomycin-resistant Enterococci : An In Vitro and In Silico Approach

Karishma Ahmed, Khizar Abdullah Khan, Sultan Mehtap Büyüker, Muhammad Arshad Zaman, Atif Ali Khan Khalil, Syed Babar Jamal, Muhammad Faheem, Mi-Jeong Ahn, Mutiullah Khattak

species are Gram-positive cocci normally found in the gut but have emerged as opportunistic pathogens in healthcare settings, with rising multidrug resistance,...

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DOI: https://doi.org/10.20307/nps.2025.31.4.299

Cardioprotective Potential of a Marine-Derived Tetrapeptide (CAAP) from Paralichthys olivaceus with Dual Antioxidant and ACE-Inhibitory Activities

Ju-Young Ko, Ji-Hyeok Lee, Mi-Jin Choi, Han-Kyu Lim, Min-Ho Oak

Excessive lipid peroxidation and renin–angiotensin system dysregulation are central mechanisms linking oxidative stress to hypertension. In this study, a bioact...

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DOI: https://doi.org/10.20307/nps.2025.31.4.309