Văn Dũng Lương

A new species of Camellia L. (Theaceae) from south-central of Vietnam: evidence from morphology and anatomy analyses

VAN CANH NGUYEN, Thi Ngoc Thu Tran, Văn Dũng Lương, Thi Thanh Nha Phan et autres

A new species of Camellia (section Piquetia) from south-central of Vietnam is described. Within section Piquetia, the new species is most similar to C. honbaensis, but differs in several morphological traits (smaller leaves, longer reddish pedicels, glabrous stamens, and styles completely free …

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TWO NEW RED-FLOWERED CAMELLIA SPECIES (THEACEAE, SECTION ARCHECAMELLIA) FROM NORTHERN VIETNAM

Văn Dũng Lương, Thanh Phong Do, Ngoc Dai Do, Trinh Ngoc Bon

Camellia ngochuyeniae and Camellia nguyenii of the Camellia section Archecamellia (Theaceae) are described and illustrated. The flowers of Camellia ngochuyeniae are axillary, solitary, or in groups of 2–4 on young shoots, 6.5–8 cm in diameter, petals 12–15, subglobose to broadly obovate, pink …

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Diterpene-phenylpropanoid conjugates and seco-abietane diterpenoids from dried branches of Illicium cambodianum with inhibitory activity against PCSK9 secretion

Jungmoo Huh, Chan-Woong Park, Piseth Nhoek, Pisey Pel et autres

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Camellia puhoatensis (Sect. Archecamellia - Theaceae), a new species from Vietnam

Danh-Hung Nguy ễn, Văn Dũng Lương, Thị-Hương Lê, Qu ốc-Thanh Tr ần et autres

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3′-Oxo-dihydrophaseic Alcohol and Norisoprenoids from Combretum quadrangulare with Cytotoxicity against Human Liver Cancer Cells

Chae-Yeong An, Chan‐Woong Park, Pisey Pel, Hyun-Suk Lee et autres

A new 3ʹ-oxo-dihydrophaseic alcohol (1), along with three known norisoprenoids (2–4), was isolated from the 70% ethanol extract of the aerial parts of Combretum quadrangulare through repeated column chromatography. The structure of the new compound was elucidated using extensive spectroscopic methods, including …

DYSOXYLUM MOLLISSIMUM (SPRENG.) BLUME EX G. DON (MELIACEAE), A NEW RECORD FOR THE FLORA OF VIETNAM

Văn Dũng Lương, Lê Ngọc Triệu, Nguyễn Văn Kết, Thanh Truong Hoang

Dysoxylum mollissimum (Spreng.) Blume ex G. Don is a new record for the flora of Vietnam. This species is distributed in primary and secondary forests in scattered populations at elevations of 800–1200 m above sea level in the provinces of Gia Lai …

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Cycloartane-type triterpenoids from Combretum quadrangulare Kurz with PCSK9 secretion inhibitory activities

Chae-Yeong An, Pisey Pel, Mingoo Bae, Chan‐Woong Park et autres

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Antioxidant and Hepatoprotective Effects of Kadsura coccinea Stem Extract on Oxidative Damage on HepG2 Cells

Joon Hee Han, Min Jeong Hong, Hoang Viet Bach Khoa, Văn Dũng Lương et autres

Background: Reactive oxygen species (ROS) contribute to increased intracellular oxidative stress, which has detrimental effects on normal cells and reduces antioxidant levels. This oxidative stress, particularly in the liver, causes inflammation, which leads to the development of acute and chronic liver diseases. …

CAMELLIA HOABINHENSIS (THEACEAE: SECT. CHRYSANTHA), A NEW YELLOW-FLOWERED SPECIES FROM NORTHERN VIETNAM

Quach Van Hoi, Ninh Tran, Văn Dũng Lương, Thanh Truong Hoang et autres

A new species, Camellia hoabinhensis (section Chrysantha, Theaceae), is described and illustrated based on specimens collected from a lowland forest on limestone hills in Hoa Binh Province, northern Vietnam. The species is characterized by its small habit to 4.5 m tall, large …

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Chemical Composition, Antimicrobial, Nitric Oxide Inhibition and Cytotoxic Activity of Essential Oils from Zanthoxylum acanthopodium DC. Leaves and Stems from Vietnam

Trinh Thi Diep, Văn Dũng Lương, Phùng Văn Trung, Đức Việt Hồ et autres

Abstract This study was aimed to investigate the chemical composition and biological activities of leaf and stem essential oils of Zanthoxylum acanthopodium DC. from Vietnam. Their chemical composition was analyzed by GC/MS. Antimicrobial activities were evaluated by microdilution broth assay. Anti‐inflammatory activity …

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Camellia hiepii (Theaceae), a new species from the Central Highlands of Vietnam

Thi Lien Thuong-Nguyen, Van-Canh Nguyen, Quang-Cuong Truong, Van-Khuong Nguyen et autres

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Camellia maianhii (Theaceae), A New Species of Red-Flowered Camellia from the North Central Coast Region of Vietnam

Thành Trung Nguyễn, Văn Dũng Lương, Đỗ Ngọc Đài, Kim Soo Yoong et autres

Camellia maianhii from the North Central Coast Region of Vietnam is described and illustrated.The new Camellia species is tentatively placed in Camellia section Archecamellia (Theaceae).Camellia maianhii is most like Camellia puhoatensis but the morphological characteristics which differentiate it from other species in …

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