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Vinh LB, Jo SJ, Nguyen Viet P, Gao D, Cho KW, Koh EJ, Park SS, Kim YR, Kim YH, Yang SY. The chemical constituents of ethanolic extract from Stauntonia hexaphylla leaves and their anti-inflammatory effects. Nat Prod Res 2019; 35:1852-1855. [PMID: 31305145 DOI: 10.1080/14786419.2019.1638385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Stauntonia hexaphylla (Lardizabalaceae) is an important medicinal plant in Korea, Japan, and China. Its leaves are used to treat many diseases because of their analgesic, sedative, and diuretic effects; however, there are few reports on their chemical constituents and biological activities. This study divided an ethanol extract into dichloromethane (DCM), ethyl acetate (EtOAc), and water fractions. Bioassay-guided fractionation of the ethanol extracts led to the isolation of seven compounds (1-7). To our knowledge, this is the first report of 1-7 from S. hexaphylla. The anti-inflammatory effects were investigated by suppressing cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) in Western blots. The ethanol extract (20 µg/mL), DCM fraction (20 µg/mL), and compound 1 (10 µM) decreased COX-2 and iNOS expression significantly in LPS-induced RAW264.7 cells. These results suggest that S. hexaphylla leaves and compound 1 are useful candidates for treating inflammatory and other diseases.
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Affiliation(s)
- Le Ba Vinh
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea.,Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Se Jin Jo
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Gwangju, Republic of Korea
| | - Phong Nguyen Viet
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Dan Gao
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Kyoung Won Cho
- Chong Kun Dang Healthcare Corporation, Seoul, Republic of Korea
| | - Eun-Jeong Koh
- Chong Kun Dang Healthcare Corporation, Seoul, Republic of Korea
| | - Sung Sun Park
- Chong Kun Dang Healthcare Corporation, Seoul, Republic of Korea
| | - Young Ran Kim
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Gwangju, Republic of Korea
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Seo Young Yang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
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Rout PK, Kumar P, Rao YR, Kumar A, Bawankule DU, Singh R, Singh KB, Chanotiya CS, Naik SN. A quinoline alkaloid rich Quisqualis indica floral extract enhances the bioactivity. Nat Prod Res 2019; 35:1632-1638. [PMID: 31264476 DOI: 10.1080/14786419.2019.1634709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A volatile alkaloid quinoline-4-carbonitrile (QCN) was isolated from the floral extract of Quisqualis indica. Major compounds were trans-linalool oxide (1.0, 4.5%), methyl benzoate (1.0, 4.0%), 2,2,6-trimethyl-6-vinyl-tetrahydropyran-3-one (7.4, 17.8%), 2,2,6-trimethyl-6-vinyl-tetrahydropyran-3-ol (1.0, 1.2%), (E,E)-α-farnesene (29.1, 16.1%), QCN (5.7, 1.3%) in live and picked flowers, respectively. Flower compositions were altered due to change in enzymatic reaction at the time of picking. Some rearrangements of oxygenated terpenoids occurred in the process of hydrodistillation to obtain essential oil. Chemical synthesis of QCN and its selectively reduced products derived from QCN were prepared through green reaction process. The catalytic modification of QCN has produced quinoline-4-methylamine; the later compound has shown enhanced bio-activities. QCN and floral extract (absolute) have shown potential anti-inflammatory and antioxidant activities. Besides, floral absolute has shown significant anti-inflammatory and antioxidant activities due to improved QCN (19.7%) content to synergize amongst terpenoids and benzenoids as compared to the essential oil with 1.1% of QCN.
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Affiliation(s)
- Prasant Kumar Rout
- Chemical Sciences Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Prashant Kumar
- Chemical Sciences Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Y Ramachandra Rao
- Forest and Marine Products Department, CSIR-Regional Research Laboratory (IMMT), Bhubaneswar, Odisha, India
| | - Anant Kumar
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.,Molecular Bioprospection Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Dnyaneshwar U Bawankule
- Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.,Molecular Bioprospection Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Ruchi Singh
- Chemical Sciences Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Kijay Bahadur Singh
- Chemical Sciences Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Chandan Singh Chanotiya
- Chemical Sciences Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - S N Naik
- Center for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
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