4.6 Article

Complete 1H-NMR and 13C-NMR spectral assignment of five malonyl ginsenosides from the fresh flower buds of Panax ginseng

Journal

JOURNAL OF GINSENG RESEARCH
Volume 40, Issue 3, Pages 245-250

Publisher

KOREAN SOC GINSENG
DOI: 10.1016/j.jgr.2015.08.003

Keywords

flower buds; ginsenoside; malonyl ginsenoside Re; NMR; Panax ginseng

Funding

  1. National Key Technology Research and Development Program of the Ministry of Science and Technology of China [2011BAI03B01]

Ask authors/readers for more resources

Background: Ginsenosides are the major effective ingredients responsible for the pharmacological effects of ginseng. Malonyl ginsenosides are natural ginsenosides that contain a malonyl group attached to a glucose unit of the corresponding neutral ginsenosides. Methods: Medium-pressure liquid chromatography and semipreparative high-performance liquid chromatography were used to isolate purified compounds and their structures determined by extensive one-dimensional- and two-dimensional nuclear magnetic resonance (NMR) experiments. Results: A new saponin, namely malonyl-ginsenoside Re, was isolated from the fresh flower buds of Panax ginseng, along with malonyl-ginsenosides Rb1, Rb2, Rc, Rd. Some assignments for previously published H-1- and C-13-NMR spectra were found to be inaccurate. Conclusion: This study reports the complete NMR assignment of malonyl-ginsenoside Re, Rb1, Rb2, Rc, and Rd for the first time. Copyright (C) 2015, The Korean Society of Ginseng, Published by Elsevier.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Biochemistry & Molecular Biology

Orobanche cernua Loefling Attenuates Ultraviolet B-mediated Photoaging in Human Dermal Fibroblasts

Wei Gao, Yu-shuai Wang, Zheng-yi Qu, Eunson Hwang, Hien T. T. Ngo, Ying-ping Wang, Jahyun Bae, Tae-hoo Yi

PHOTOCHEMISTRY AND PHOTOBIOLOGY (2018)

Article Biochemistry & Molecular Biology

Exosome Derived from ADSCs Attenuates Ultraviolet B-mediated Photoaging in Human Dermal Fibroblasts

Wei Gao, Xiu Wang, Yue Si, Jinlong Pang, Hao Liu, Shanshan Li, Qi Ding, Yushuai Wang

Summary: The study found that exosomes (Exo) derived from ADSCs have significant effects in preventing skin photoaging, by inhibiting DNA damage and overexpression of harmful substances through regulating multiple signaling pathways. Additionally, Exo can enhance the expression of procollagen type I and activate related pathways to protect the skin.

PHOTOCHEMISTRY AND PHOTOBIOLOGY (2021)

Article Pharmacology & Pharmacy

Combination and efficiency: preparation of dissolving microneedles array loaded with two active ingredients and its anti-pigmentation effects on guinea pigs

Yu-shuai Wang, Wei-han Yang, Wei Gao, Lu Zhang, Fang Wei, Hang Liu, Shu-ya Wang, Ying-ying Li, Wei-man Zhao, Tao Ma, Qingqing Wang

Summary: The combination of arbutin and vitamin C was found to be effective in inhibiting melanogenesis and tyrosinase activity, and the use of HA-based DMNA helped overcome skin barriers for better drug delivery. DMNA also improved the stability of vitamin C and synergistically suppressed UVB-induced hyperpigmentation in guinea pig skin.

EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES (2021)

Article Biochemistry & Molecular Biology

Effects of phenylethanol glycosides from Orobanche cernua Loefling on UVB-Induced skin photodamage: a comparative study

Wei Gao, Shengdao Zheng, Eunson Hwang, Tae-hoo Yi, Yu-shuai Wang

Summary: The study revealed that acteoside, isoacteoside, and 2 '-acetylacteoside in Orobanche cernua Loefling are effective in protecting against UV radiation-induced skin damage by reducing MMP-1 expression, increasing type I procollagen synthesis, and inhibiting ROS and TARC secretion. Crenatoside, however, did not show any significant effect on the regulation of these signal cascades.

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES (2021)

Article Food Science & Technology

Identification of Chinese green tea (Camellia sinensis) marker metabolites using GC/MS and UPLC-QTOF/MS

Yu-shuai Wang, Min-zhe Fang, Sheng-dao Zheng, Jin-Gyeong Cho, Tae-Hoo Yi

Summary: This study identified 29 primary metabolites and 25 secondary metabolites in different varieties of green tea using metabolite analysis. PCA analysis showed distinct differences among the green tea varieties. The amounts of organic acids, amino acids, flavan-3-ols, and flavonol glycosides varied significantly, serving as important markers for evaluating and establishing tea quality standards.

FOOD SCIENCE AND BIOTECHNOLOGY (2021)

Article Biochemistry & Molecular Biology

miR-221/222 Promote Endothelial Differentiation of Adipose-Derived Stem Cells by Regulation of PTEN/PI3K/AKT/mTOR Pathway

Wei Gao, Limin Yuan, Yue Zhang, Yue Si, Xuqing Wang, Tianci Lv, Yu-shuai Wang

Summary: In this study, the effects of miR-221/222 overexpression/silence in ADSCs on endothelial differentiation were investigated. The results showed that transfection with miR-221/222 promoted the expression of endothelial markers, LDL uptake, and tube-like formation. It was found that the PI3K/AKT signaling pathway was activated during endothelial differentiation. Injection of miR-221/222 transfected ADSCs significantly improved rat hindlimb ischemia, indicating its potential for vascular formation and tissue regeneration.

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY (2023)

Article Biochemistry & Molecular Biology

Long Non-coding RNA H19-Overexpressing Exosomes Ameliorate UVB-Induced Photoaging by Upregulating SIRT1 Via Sponging miR-138

Wei Gao, Yue Zhang, Limin Yuan, Fangzhou Huang, Yu-shuai Wang

Summary: This study demonstrates that lncRNA H19 can protect against UVB-induced skin photoaging by upregulating SIRT1 via miR-138, providing a potential therapeutic target for treating UVB-induced photodamage.

PHOTOCHEMISTRY AND PHOTOBIOLOGY (2023)

Article Biochemistry & Molecular Biology

Enhancement of Protective Effects of Radix Scutellariae on UVB-induced Photo Damage in Human HaCaT Keratinocytes

Yu-shuai Wang, Jin-Gyeong Cho, Eun-Son Hwang, Jung-Eun Yang, Wei Gao, Min-zhe Fang, Sheng-dao Zheng, Tae-Hoo Yi

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY (2018)

No Data Available