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Hoa Thi Tran,Giang Thu Nguyen,Hong Ha Thi Nguyen,Huyen Thi Tran,Quang Hong Tran,Quang Ho Tran,Ngoc Thi Ninh,Phat Tien Do,Ha Hoang Chu,Ngoc Bich Pham 한국균학회 2022 Mycobiology Vol.50 No.5
Endophytic fungi are promising sources for the production of podophyllotoxin-an important anticancer compound, replacing depleted medical plants. In this study, the endophytes asso- ciated with Dysosma difformis-an ethnomedicinal plant species were isolated to explore novel sources of podophyllotoxin. Fifty-three endophytic fungi were isolated and identified by morphological observation and ITS-based rDNA sequencing, assigning them to 27 genera in 3 divisions. Fusarium was found the most prevalent genus with a colonization frequency of 11.11%, followed by Trametes (9.26%) and Penicillium (7.41%). Phylogenetic trees were constructed for the endophytic fungi community in two collection sites, Ha Giang and Lai Chau, revealing the adaptation of the species to the specific tissues and habitats. Cytotoxic activity of endophytic fungal extracts was investigated on cancer cell lines such as SK-LU-1, HL-60, and HepG2, demonstrating strong anti-cancer activity of six isolates belonging to Penicillium, Trametes, Purpureocillium, Aspergillus, and Ganoderma with IC50 value of lower than 10 mg/mL. The presence of podophyllotoxin was indicated in Penicillium, Trametes, Aspergillus and for the first time in Purpureocillium and Ganoderma via high-performance liquid chromatography, which implied them as a potential source of this anti- cancer compound.
Labdane-type diterpenoids from Vitex limonifolia and their antivirus activities
Ban, Ninh Khac,Thoa, Nguyen Thi Kim,Linh, Tran My,Trang, Do Thi,Van Kiem, Phan,Nhiem, Nguyen Xuan,Tai, Bui Huu,Van Minh, Chau,Song, Jae-Hyoung,Ko, Hyun-Jeong,Kim, Seung Hyun Springer-Verlag 2018 Journal of Natural Medicines Vol.72 No.1
An investigation of Generation Z’s Intention to use Electronic Wallet in Vietnam
Ngoc Bich DO,Hai Ninh Thi DO 한국유통과학회 2020 유통과학연구 Vol.18 No.10
Purpose: There has been a growing focus on E-wallet adoption especially in emerging markets as it offers a convenient method for users to conduct cashless transactions. This study examines antecedents influencing the decision of Generation Z to adopt E-wallet. It looks into the effect of determining factors including compatibility, perceived convenience, perceived trust, perceived reputation, perceived usefulness, perceived ease of use and social influence on users’ intention to use. The moderator role of social influence is also under examination. Research design, data and methodology: The quantitative method has been adopted to collect data from 170 Generation Z users. SmartPLS 3.0 was applied to examine the constructed hypotheses. Results: The results indicate an indirect effect between Compatibility, Perceived Ease of Use, Perceived Trust and Social Influence toward intention to adopt Electronic wallet, or both of those factors are mediated by Perceived Convenience, Perceived Usefulness, and Reputation. Moreover, research finding highlights the role of Perceived Usefulness as Generation Z’s intention determinant to use E-Wallet. Conclusions: This study is substantial as it selected the promising customer segment – Generation Z to examine the factors influencing their decision to adopt Electronic wallet. Marketers can navigate which dimensions should be included in marketing campaigns to encourage Generation Z’s adoption.
Nhiem, Nguyen Xuan,Kiem, Phan Van,Minh, Chau Van,Ban, Ninh Khac,Cuong, Nguyen Xuan,Tung, Nguyen Huu,Ha, Le Minh,Ha, Do Thi,Tai, Bui Huu,Quang, Tran Hong,Ngoc, Tran Minh,Kwon, Young-In,Jang, Hae-Dong,K The Pharmaceutical Society of Japan 2010 Chemical & pharmaceutical bulletin Vol.58 No.5
<P>Fourteen cucurbitane-type triterpene glycosides (1—14) were isolated from a methanol extract of <I>Momordica charantia</I> fruits, including three new compounds, charantosides A—C (1, 5, 6). Their structures were elucidated by chemical and spectroscopic methods. All isolated compounds were evaluated for α-glucosidase inhibitory effect. Of which, 12 and 13 showed moderate inhibitory activity against α-glucosidase. Whereas, 2, 3, 6—11, and 14 showed weak inhibitory activity, and 1, 4, and 5 were inactive.</P>