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Wang J, Li X, Guo S, Zhao Y, Wang C, He F, Ying X. Two new alkaloids from Portulaca oleracea L. and their anti-inflammatory and anticholinesterase activities. Nat Prod Res 2024:1-10. [PMID: 38660987 DOI: 10.1080/14786419.2024.2346288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/17/2024] [Indexed: 04/26/2024]
Abstract
Two new alkaloids identified as 2-(((S,Z)-1-(1H-azirin-1-yl)-5-methylhex-1-en-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol and (S,Z)-1-(1H-azirin-1-yl)-5-methylhex-1-en-3-ol, named olerazirin A (1), olerazirin B (2), together with five known alkaloids, identified as cyclo (L-Val-L-Ala) (3), cyclo-(glycyl-L-leucine) (4), cyclo-(Gly-Phe) (5), cyclo (Ser-Phe) (6), (3S,6S)-3-[(1R)-1-hydroxyethyl]-6-(phenyl-methyl)-2,5-piperazinedione (7) were obtained from Portulaca oleracea L. using a range of chromatographic techniques, 1D and 2D NMR, and high-resolution electrospray ionisation time-of-flight mass spectroscopic methods, in which the compounds 3-7 were isolated from P. oleracea for the first time. In addition, the results showed that the compounds 1 and 2 have anti-inflammatory activities and compounds 1-3 and 5-7 exhibit the anticholinesterase activities.
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Affiliation(s)
- Jinhuan Wang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Xinran Li
- The First Affiliated Hospital of Dalian Medical University, Dalian, PR China
| | - Shengnan Guo
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Yingdai Zhao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Chengyu Wang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Fan He
- Guangdong Provincial Hospital of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
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2
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Li K, Xia T, Jiang Y, Wang N, Lai L, Xu S, Yue X, Xin H. A review on ethnopharmacology, phytochemistry, pharmacology and potential uses of Portulaca oleracea L. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117211. [PMID: 37739100 DOI: 10.1016/j.jep.2023.117211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 09/05/2023] [Accepted: 09/20/2023] [Indexed: 09/24/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Portulaca oleracea L. (PO), popularly known as purslane, has been documented in ethnopharmacology in various countries and regions. Traditional application records indicated that PO might be used extensively to treat the common cold, dysentery, urinary tract infections, coughing, eye infections, skin problems, gynecological diseases, and pediatric illnesses. AIM OF THE REVIEW This paper includes a systematic review of the traditional usage, phytochemicals, pharmacological activity, and potential uses of PO to provide an overview of the research for further exploitation of PO resources. MATERIALS AND METHODS This article uses "Portulaca oleracea L." and "purslane" as the keywords and collects relevant information on PO from different databases, including PubMed, Web of Science, Springer, Science Direct, ACS, Wiley, CNKI, Baidu Scholar, Google Scholar, and ancient meteria medica. RESULTS PO is a member of the Portulacaceae family and is grown worldwide. Traditional Chinese medicine believes that purslane has the effect of improving eyesight, eliminating evil qi, quenching thirst, purgation, diuresis, hemostasis, regulating qi, promoting hair growth, detoxifying, and avoiding epidemic qi. Recent phytochemical investigations have shown that PO is a rich source of flavonoids, homoisoflavonoids, alkaloids, organic acids, esters, lignans, terpenoids, catecholamines, sterols, and cerebrosides. The purslane extracts or compounds have exhibited numerous biological activities such as anti-inflammatory, immunomodulatory, antimicrobial, antiviral, antioxidant, anticancer, renoprotective, hepatoprotective, gastroprotective, metabolic, muscle relaxant, anti-asthmatic and anti-osteoporosis properties. The significant omega-3 fatty acids, vital amino acids, minerals, and vitamins found in purslane also provide nutritional benefits. Purslane as a food/feed additive in the food industry and animal husbandry has caused concern. Its global wide distribution and tolerance to abiotic stress characteristics make it in the future sustainable development of agriculture a certain position. CONCLUSIONS Based on traditional usage, phytochemicals, and pharmacological activity, PO is a potential medicinal and edible plant with diverse pharmacological effects. Due to purslane's various advantages, it may have vast application potential in the food and pharmaceutical industries and animal husbandry.
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Affiliation(s)
- Kun Li
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China; Department of Traditional Chinese Medicine, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Tianshuang Xia
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Yiping Jiang
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Nani Wang
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Liyong Lai
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Shengyan Xu
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China
| | - Xiaoqiang Yue
- Department of Traditional Chinese Medicine, Changzheng Hospital, Naval Medical University, Shanghai, China.
| | - Hailiang Xin
- Department of Pharmacognosy, School of Pharmacy, Naval Medical University, Shanghai, China.
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Yao J, Wang L, Liu P, Song M, Tian J, He F, Ying X. A new alkaloid from Portulaca oleracea L. with its anti-inflammatory activity. Z NATURFORSCH C 2023; 78:409-413. [PMID: 37698627 DOI: 10.1515/znc-2022-0245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 08/26/2023] [Indexed: 09/13/2023]
Abstract
A new isoindole alkaloid, 6-hydroxy-2-(4'''-hydroxy-3'''-methoxyphenethyl)-4-(4'-hydroxy-3'-methoxyphenyl)-7-methoxy-1H-benzo[f]isoindole-1,3(2H)-dione, named oleraisoindole B was isolated from Portulaca oleracea L., its structure was elucidated using NMR and UHPLC-ESI-Q-TOF/MS spectroscopic methods, and presented anti-inflammatory activity at 5 μM.
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Affiliation(s)
- Junjie Yao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Lina Wang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Peishan Liu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Mingyang Song
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Jiayin Tian
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
| | - Fan He
- Guangdong Provincial Hospital of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, P.R. China
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4
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Tian J, Zhang M, Zhao Y, Zhang C, Ying X. Two new ester alkaloids from Portulaca oleracea L. and their bioactivities. Nat Prod Res 2023; 37:3915-3922. [PMID: 36577017 DOI: 10.1080/14786419.2022.2161542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/29/2022] [Accepted: 12/14/2022] [Indexed: 12/29/2022]
Abstract
Two new ester alkaloids were isolated from Portulaca oleracea L., identified as (5-aminofuran-2-yl) methyl acetate (1) named oleracone N and 4(S)-ethyl 3-acetamido-3-(dihydroxyamino) propanoate (2) named oleracone O. The structures were elucidated via spectroscopic methods, including 1 D and 2 D NMR, UHPLC-ESI-QTOF/MS and CD spectrometry technique. It was suggested that both oleracone N and oleracone O could significantly inhibit inflammatory factors IL-1β and TNF-α in RAW 264.7 cells induced by LPS.
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Affiliation(s)
- Jiayin Tian
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
| | - Mingbo Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
| | - Yingdai Zhao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
| | - Chaoshen Zhang
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, P.R. China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
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Lan X, Guo S, Zhao Y, Zhang M, Zhang D, Leng A, Ying X. A novel skeleton alkaloid from Portulaca oleracea L. and its bioactivities. Fitoterapia 2023; 169:105608. [PMID: 37453700 DOI: 10.1016/j.fitote.2023.105608] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
A novel skeleton alkaloid was obtained from Portulaca oleracea L., which was identified as 10,11-dihydroxybenzo[5',6'] pentaleno[1',2':3,4]pyrrolo[2,1-b]oxazol-7(11bH)-one, named oleracone M, and its structure was determined using UHPLC-ESI-QTOF/MS, 1D NMR and 2D NMR spectroscopy, and circular dichroism. Then the bioactivities of the compound were investigated including the anti-inflammatory, anti-acetylcholinesterase and antioxidant activities. The results showed that the novel skeleton alkaloid exhibited the potent effect on inhibiting the secretion of IL-1β at 10 μM, anticholinesterase activity with IC50 value of 49.58 μM, and antioxidant activity with IC50 value of 66.43 μM.
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Affiliation(s)
- Xiujuan Lan
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Shengnan Guo
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Yingdai Zhao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Mingbo Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Dinglin Zhang
- Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Lab Mol Modeling & Design, Dalian, Liaoning, PR China
| | - Aijing Leng
- Department of Pharmacy, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, PR China.
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China.
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6
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Kwon YS, Ko JS, Oh SY, Han YT, Jo SA. Oleracone F Alleviates Cognitive Impairment and Neuropathology in APPswe/PSEN1dE9 Mice by Reducing the Expression of Vascular Cell Adhesion Molecule and Leukocyte Adhesion to Brain Vascular Endothelial Cells. Int J Mol Sci 2023; 24:ijms24032056. [PMID: 36768379 PMCID: PMC9916962 DOI: 10.3390/ijms24032056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease and the blood-brain barrier dysfunction has been suggested as a key pathological feature of the disease. Our research group successfully established a synthetic protocol for oleracones, a novel series of flavonoids isolated from the plant extract of Portulaca oleracea L. (PO). PO extract was reported to have anti-inflammatory and antioxidant effects, enhancing cognitive function. Thus, we investigated the effects and mechanism of oleracones on cognition using AD model transgenic mice (Tg; APPswe/PSEN1dE9). Oleracone F treatment significantly improved memory dysfunction in Tg mice. Oleracone F decreased the number, burden, and immunoreactivity of amyloid plaques and amyloid precursor protein (APP) protein levels in the brains of Tg mice compared to wild-type mice. Oleracone F also alleviated inflammation observed in Tg mice brains. In vitro studies in human microvascular endothelial cells (HBMVECs) demonstrated that oleracones D, E, and F blocked the elevations in VCAM-1 protein induced by tumor necrosis factor-α (TNF-α), hindering leukocyte adhesion to HBMVECs. Taken together, our results suggest that oleracones ameliorated cognitive impairment by blocking TNF-α-induced increases in VCAM-1, thereby reducing leukocyte infiltration to the brain and modulating brain inflammation.
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Affiliation(s)
- Young-Sun Kwon
- Department of Nanobiomedical Science & BK21 Four NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
| | - Jin-Sung Ko
- Department of Nanobiomedical Science & BK21 Four NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
| | - Se-Young Oh
- Department of Convergence Medicine, Ewha Womans University Mokdong Hospital, Ewha Womans University, Seoul 07985, Republic of Korea
| | - Young Taek Han
- Department of Pharmacy, College of Pharmacy, Dankook University, Cheonan 31116, Republic of Korea
| | - Sangmee Ahn Jo
- Department of Nanobiomedical Science & BK21 Four NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Dankook University, Cheonan 31116, Republic of Korea
- Correspondence: ; Tel.: +82-41-550-1433
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7
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Bo S, Chang SK, Chen Y, Sheng Z, Jiang Y, Yang B. The structure characteristics, biosynthesis and health benefits of naturally occurring rare flavonoids. Crit Rev Food Sci Nutr 2022; 64:2490-2512. [PMID: 36123801 DOI: 10.1080/10408398.2022.2124396] [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: 11/03/2022]
Abstract
Rare flavonoids, a special subclass of naturally occurring flavonoids with diverse structures including pterocarpans, aurones, neoflavonoids, homoisoflavones, diphenylpropanes, rotenoids and 2-phenylethyl-chromones. They are mainly found in legumes with numerous health benefits. Rare flavonoids are regarded as minor flavonoids due to their very limited abundance in nature. This review gives an overview of the natural occurrences of rare flavonoids from previous literatures. Recent findings on the biosynthesis of rare flavonoids have been updated by describing their structural characteristics and classifications. Recent findings on the health benefits of rare flavonoids have also been compiled and discussed. Natural rare flavonoids with various characteristics from different subclasses from plant-based food sources are stated. They show a wide range of health benefits, including antibacterial, anticancer, anti-osteoporosis and antiviral activities. Studies reviewed suggest that rare flavonoids possessing different skeletons demonstrate different characteristic bioactivities by discussing their mechanism of actions and structure-activity relationships. Besides, recent advances on the biosynthesis of rare flavonoids, such as pterocarpans, rotenoids and aurones are well-known, while the biosynthesis of other subclasses remain unknown. The perspectives and further applications of rare flavonoids using metabolic engineering strategies also be expected.
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Affiliation(s)
- Shengtao Bo
- Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Sui Kiat Chang
- Department of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul, Rahman, Kampar, Malaysia
| | - Yipeng Chen
- Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhili Sheng
- Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yueming Jiang
- Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Bao Yang
- Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
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8
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Song M, Ying Z, Ying X, Jia L, Yang G. Three novel alkaloids from Portulaca oleracea L. and their anti-inflammatory bioactivities. Fitoterapia 2021; 156:105087. [PMID: 34798165 DOI: 10.1016/j.fitote.2021.105087] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 01/12/2023]
Abstract
Three novel alkaloids, identified as (E)-N-((2R)-3-(2,5-dihydroxy-4-((3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)phenyl)-2-hydroxypropanoyl)-3-(4-hydroxyphenyl)acrylamide (1), named oleracrylimide A, (E)-N-((2R)-3-(2,5-dihydroxy-4-((3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)phenyl)-2-hydroxypropanoyl)-3-(4-hydroxy-3-methoxyphenyl)acrylamide (2), named oleracrylimide B, and (E)-N-((2R)-3-(2,5-dihydroxy-4-((3,4,5-trihydroxy-6-(((3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2-yl)oxy)phenyl)-2-hydroxypropanoyl)-3-(4-hydroxy-3-methoxyphenyl)acrylamide (3), named oleracrylimide C were isolated from Portulaca oleracea L. and the structures of the three novel compounds were determined by 1D and 2D NMR, circular dichroism, and UHPLC-ESI-QTOF/MS spectroscopic methods. Moreover, the bioactivities of anti-inflammation of the three compounds were investigated via testing RAW 264.7 macrophage cell stimulated by Lipopolysaccharide.
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Affiliation(s)
- Mingyang Song
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Zhengming Ying
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China.
| | - Lianqun Jia
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
| | - Guanlin Yang
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China.
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9
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Liu F, Cui X, Duan Y, Guo S, Liu J, Ying X. A new alkaloid from Portulaca oleracea L. and its anti-inflammatory activity. Nat Prod Res 2021; 36:4709-4713. [PMID: 34747290 DOI: 10.1080/14786419.2021.2000984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A new alkaloid, identified as (E)-2-(4-hydroxyphenyl)-3-(pyridazin-3-yl)-acrylaldehyde, named oleradazine, was isolated from Portulaca oleracea L., and the structure was elucidated using spectroscopic methods, including 1D and 2D NMR spectroscopic and UHPLC-ESI-QTOF/MS methods. In addition, the compound was used to investigate its anti-inflammatory activity in lipopolysaccharide-stimulated macrophages. It was suggested that the oleradazine can significantly inhibit the inflammatory factors, interleukin 1β and nitric oxide in lipopolysaccharide-stimulated RAW 264.7 cells by enzyme-linked immunosorbent assays.
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Affiliation(s)
- Fangxuan Liu
- First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
| | - Xinyu Cui
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
| | - Yang Duan
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
| | - Shengnan Guo
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
| | - Jinpeng Liu
- Laboratory of Pharmacology, Dalian Center for Certification and Food and Drug Control, Dalian, P.R. China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, P.R. China
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10
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Non-Alkaloid Cholinesterase Inhibitory Compounds from Natural Sources. Molecules 2021; 26:molecules26185582. [PMID: 34577053 PMCID: PMC8472022 DOI: 10.3390/molecules26185582] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 01/12/2023] Open
Abstract
Alzheimer’s disease (AD) is a severe neurodegenerative disorder of different brain regions accompanied by distresses and affecting more than 25 million people in the world. This progressive brain deterioration affects the central nervous system and has negative impacts on a patient’s daily activities such as memory impairment. The most important challenge concerning AD is the development of new drugs for long-term treatment or prevention, with lesser side effects and greater efficiency as cholinesterases inhibitors and the ability to remove amyloid-beta(Aβ) deposits and other related AD neuropathologies. Natural sources provide promising alternatives to synthetic cholinesterase inhibitors and many have been reported for alkaloids while neglecting other classes with potential cholinesterase inhibition. This review summarizes information about the therapeutic potential of small natural molecules from medicinal herbs, belonging to terpenoids, coumarins, and phenolic compounds, and others, which have gained special attention due to their specific modes of action and their advantages of low toxicity and high efficiency in the treatment of AD. Some show superior drug-like features in comparison to synthetic cholinesterase inhibitors. We expect that the listed phytoconstituents in this review will serve as promising tools and chemical scaffolds for the discovery of new potent therapeutic leads for the amelioration and treatment of Alzheimer’s disease.
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Duan Y, Ying Z, He F, Ying X, Jia L, Yang G. A new skeleton flavonoid and a new lignan from Portulaca oleracea L. and their activities. Fitoterapia 2021; 153:104993. [PMID: 34284073 DOI: 10.1016/j.fitote.2021.104993] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/09/2021] [Accepted: 07/11/2021] [Indexed: 11/15/2022]
Abstract
A new skeleton flavonoid, identified as (5aR)-10-hydroxy-8-methoxy-5aH,11H-chromeno[2,3-b]chromen-11-one (1), named oleracone G, and a new lignan, confirmed as 8-(4-hydroxy-3-methoxyphenyl)-3-methoxynaphthalen-2-ol (2), named oleralignan B, were isolated from Portulaca oleracea L., and the structures of them were determined using spectroscopic methods including UV, IR, 1D NMR, 2D NMR, and UHPLC-ESI-QTOF/MS. In addition, compounds 1-2 were applied to investigate the anti-inflammatory activities on lipopolysaccharide-stimulated macrophages and scavenging effects in 1,1-diphenyl-2-picryl-hydrazyl (DPPH) free radical. The results showed that the two compounds at 10 μM and 20 μM could dose-dependently decrease the secretion of interleukin 1β in RAW 264.7 cells by enzyme-linked immunosorbent assay, moreover, presented remarkable antioxidant activities with IC50 values of 27.57, 20.12 μM, respectively.
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Affiliation(s)
- Yang Duan
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Zheming Ying
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
| | - Fan He
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China
| | - Xixiang Ying
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, Liaoning, PR China.
| | - Lianqun Jia
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China.
| | - Guanlin Yang
- School of The First Clinic, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China; Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, PR China
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