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Karakousi CV, Xanthippi B, Theano S, Eugene K. Phytochemical analysis, antioxidant and ALR2 inhibitory activity of Sorbus torminalis (L.) fruits at different maturity stages. Fitoterapia 2024; 175:105863. [PMID: 38373500 DOI: 10.1016/j.fitote.2024.105863] [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: 08/06/2023] [Revised: 02/12/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
Thirty four compounds were identified in Sorbus torminalis (L.) fruit extracts of different maturity types by means of LC-DAD-MS (ESI+) fragmentation analysis. Both immature and mature fruits were rich in flavonoid glycosides esterified with hydroxycinnamic, phenolic and dicarboxylic acids along with benzoic, phenylpropanoic and cinnamoyl quinic acid derivatives with many of them being detected for the first time in Sorbus species and in literature. Extracts and fractions were tested for their antioxidant activity (DPPH, chemiluminescence, Rancimat assays) and the estimation of the phenolic content was carried out through Folin-Ciocalteu reagent. Ethyl acetate fraction exhibited the highest scavenging activity determined as EC50 = 1.58 ± 0.22 μg/mL and EC50 = 1.64 ± 0.24 μg/mL for immature and mature fruits respectively with the DPPH test. Chemiluminescence test indicated the same fraction having the strongest antioxidant activity with an IC50 0.41 ± 0.06 μg/mL and IC50 0.50 ± 0.02 μg/mL in both maturity types. The ethyl acetate fraction of the mature fruits is considered the most potent Aldose Reductase 2 (ALR2) inhibitor with 79% demonstrating the high nutritional value of Sorbus torminalis (L.) mature fruits as a defense mechanism against the onset of diabetes mellitus secondary complications leading to the utilization of the plant for nutritional and pharmaceutical purposes.
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Affiliation(s)
- Christina-Vasiliki Karakousi
- Department of Pharmacognosy and Phytochemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Beilektsidou Xanthippi
- Department of Pharmacognosy and Phytochemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Samara Theano
- Forest Research Institute of Thessaloniki, ELGO-DEMETER, Vassilika, Thessaloniki 57006, Greece
| | - Kokkalou Eugene
- Department of Pharmacognosy and Phytochemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
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Gao XY, Li XY, Zhang CY, Bai CY. Scopoletin: a review of its pharmacology, pharmacokinetics, and toxicity. Front Pharmacol 2024; 15:1268464. [PMID: 38464713 PMCID: PMC10923241 DOI: 10.3389/fphar.2024.1268464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 01/24/2024] [Indexed: 03/12/2024] Open
Abstract
Scopoletin is a coumarin synthesized by diverse medicinal and edible plants, which plays a vital role as a therapeutic and chemopreventive agent in the treatment of a variety of diseases. In this review, an overview of the pharmacology, pharmacokinetics, and toxicity of scopoletin is provided. In addition, the prospects and outlook for future studies are appraised. Scopoletin is indicated to have antimicrobial, anticancer, anti-inflammation, anti-angiogenesis, anti-oxidation, antidiabetic, antihypertensive, hepatoprotective, and neuroprotective properties and immunomodulatory effects in both in vitro and in vivo experimental trials. In addition, it is an inhibitor of various enzymes, including choline acetyltransferase, acetylcholinesterase, and monoamine oxidase. Pharmacokinetic studies have demonstrated the low bioavailability, rapid absorption, and extensive metabolism of scopoletin. These properties may be associated with its poor solubility in aqueous media. In addition, toxicity research indicates the non-toxicity of scopoletin to most cell types tested to date, suggesting that scopoletin will neither induce treatment-associated mortality nor abnormal performance with the test dose. Considering its favorable pharmacological activities, scopoletin has the potential to act as a drug candidate in the treatment of cancer, liver disease, diabetes, neurodegenerative disease, and mental disorders. In view of its merits and limitations, scopoletin is a suitable lead compound for the development of new, efficient, and low-toxicity derivatives. Additional studies are needed to explore its molecular mechanisms and targets, verify its toxicity, and promote its oral bioavailability.
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Affiliation(s)
- Xiao-Yan Gao
- Basic Medicine College, Chifeng University, Chifeng, China
- Inner Mongolia Key Laboratory of Human Genetic Disease Research, Chifeng University, Chifeng, China
- Key Laboratory of Mechanism and Evaluation of Chinese and Mongolian Pharmacy at Chifeng University, Chifeng University, Chifeng, China
| | - Xu-Yang Li
- Basic Medicine College, Chifeng University, Chifeng, China
- Inner Mongolia Key Laboratory of Human Genetic Disease Research, Chifeng University, Chifeng, China
| | - Cong-Ying Zhang
- Basic Medicine College, Chifeng University, Chifeng, China
- Inner Mongolia Key Laboratory of Human Genetic Disease Research, Chifeng University, Chifeng, China
- Key Laboratory of Mechanism and Evaluation of Chinese and Mongolian Pharmacy at Chifeng University, Chifeng University, Chifeng, China
| | - Chun-Ying Bai
- Basic Medicine College, Chifeng University, Chifeng, China
- Inner Mongolia Key Laboratory of Human Genetic Disease Research, Chifeng University, Chifeng, China
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Liao Y, Mao H, Gao X, Lin H, Li W, Chen Y, Li H. Drug screening identifies aldose reductase as a novel target for treating cisplatin-induced hearing loss. Free Radic Biol Med 2024; 210:430-447. [PMID: 38056576 DOI: 10.1016/j.freeradbiomed.2023.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/08/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
Cisplatin is a frequently used chemotherapeutic medicine for cancer treatment. Permanent hearing loss is one of the most serious side effects of cisplatin, but there are few FDA-approved medicines to prevent it. We applied high-through screening and target fishing and identified aldose reductase, a key enzyme of the polyol pathway, as a novel target for treating cisplatin ototoxicity. Cisplatin treatment significantly increased the expression level and enzyme activity of aldose reductase in the cochlear sensory epithelium. Genetic knockdown or pharmacological inhibition of aldose reductase showed a significant protective effect on cochlear hair cells. Cisplatin-induced overactivation of aldose reductase led to the decrease of NADPH/NADP+ and GSH/GSSG ratios, as well as the increase of oxidative stress, and contributed to hair cell death. Results of target prediction, molecular docking, and enzyme activity detection further identified that Tiliroside was an effective inhibitor of aldose reductase. Tiliroside was proven to inhibit the enzymatic activity of aldose reductase via competitively interfering with the substrate-binding region. Both Tiliroside and another clinically approved aldose reductase inhibitor, Epalrestat, inhibited cisplatin-induced oxidative stress and subsequent cell death and thus protected hearing function. These findings discovered the role of aldose reductase in the pathogenesis of cisplatin-induced deafness and identified aldose reductase as a new target for the prevention and treatment of hearing loss.
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Affiliation(s)
- Yaqi Liao
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China
| | - Huanyu Mao
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China
| | - Xian Gao
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China
| | - Hailiang Lin
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China
| | - Wenyan Li
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, PR China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; The Institutes of Brain Science and the Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, PR China; ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China.
| | - Yan Chen
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China.
| | - Huawei Li
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, PR China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, PR China; NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai, 200031, PR China; The Institutes of Brain Science and the Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, PR China; ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, PR China.
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Tajuddeen N, Swart T, Hoppe HC, van Heerden FR. Phytochemical, Antiplasmodial, and Cytotoxic Investigation of Euclea natalensis A.DC. subsp. natalensis Leaves. Chem Biodivers 2022; 19:e202200150. [PMID: 36253138 DOI: 10.1002/cbdv.202200150] [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: 04/13/2022] [Accepted: 09/21/2022] [Indexed: 11/12/2022]
Abstract
Previous research shows that the root and bark extracts of Euclea natalensis have antiplasmodial activity, but the leaves have not been examined yet. This study investigated the phytochemical, antiplasmodial, and cytotoxic properties of the plant leaves. The activity against 3D7 Plasmodium falciparum was determined using the parasite lactate dehydrogenase assay, and the cytotoxicity against Vero and HeLa cells was evaluated using the MTT and resazurin assays, respectively. The bioactive compounds were isolated by chromatography, and their structures were established with spectroscopic and spectrometric techniques. The extract showed antiplasmodial activity (IC50 =25.6 μg/mL) and was not cytotoxic against Vero cells (IC50 =403.7 μg/mL). Purification of the extract afforded six flavonoid glycosides, four triterpenoids, and a coumarin. The glycosides showed antiplasmodial and cytotoxic activities, against HeLa cells, at 50 μg/mL, but the activity was reduced at 10 μg/mL. Naphthoquinones, which are among the predominant phytochemicals in the root and root bark of E. natalensis, were not detected in the leaves.
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Affiliation(s)
- Nasir Tajuddeen
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, Pietermaritzburg, South Africa
| | - Tarryn Swart
- Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| | - Heinrich C Hoppe
- Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| | - Fanie R van Heerden
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, Pietermaritzburg, South Africa
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5
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Terpenoids from Litsea lancilimba Merr. and their chemotaxonomic significant. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Du K, Liu Y, Zong K, Wang Y, Li J, Meng D. Isoquinoline alkaloids from the Corydalis tomentella with potential anti-hepatoma and antibacterial activities. PHYTOCHEMISTRY 2022; 200:113240. [PMID: 35597315 DOI: 10.1016/j.phytochem.2022.113240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/07/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Six undescribed isoquinolines, including one rarely reported N-benzyl isoquinoline together with sixteen known ones were isolated from C. tomentella. Their planar structures and absolute configurations were elucidated by extensive analyses of UV, IR, NMR, HRESIMS, DP4+ probability analysis as well as ECD calculations. Biological evaluations revealed that 3,4-2H-tomentelline C (6) showed significant cytotoxicity (IC50 = 7.42 μM) against the HepG2 cell line while (1'R, 2'S)-coptichine B (3) exhibited stronger antibacterial activities.
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Affiliation(s)
- Kaicheng Du
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Yaxuan Liu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Kunqi Zong
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Yumeng Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Jiaheng Li
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Dali Meng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
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7
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Tajuddeen N, Swart T, Hoppe HC, van Heerden FR. Phytochemical and antiplasmodial investigation of Gardenia thunbergia L. f. leaves. Nat Prod Res 2021; 36:4052-4060. [PMID: 34343036 DOI: 10.1080/14786419.2021.1958808] [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: 10/20/2022]
Abstract
Previous results indicated that the methanol extract of Gardenia thunbergia has antiplasmodial activity but no compounds have ever been isolated from the plant. Therefore, this study aimed to investigate the phytochemical and antiplasmodial properties of the plant. The methanol leaf extract of G. thunbergia inhibited Plasmodium falciparum at 50 µg/mL (> 80% inhibition) and was not cytotoxic against HeLa cells. Chromatographic purification of the extract afforded a new saponin and eight other known compounds. The saponin and two flavonoid glycosides displayed non-selective antiplasmodial activity at 50 µg/mL but the activities were diminished at 10 µg/mL. The presence of the isolated compounds in the leaf extract of G. thunbergia could account for the folkloric use of the plant in treating malaria.
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Affiliation(s)
- Nasir Tajuddeen
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Tarryn Swart
- Department of Biochemistry & Microbiology, Rhodes University, Grahamstown, South Africa
| | - Heinrich C Hoppe
- Department of Biochemistry & Microbiology, Rhodes University, Grahamstown, South Africa
| | - Fanie R van Heerden
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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8
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Silva ML, Costa-Silva TA, Antar GM, Tempone AG, Lago JHG. Chemical Constituents from Aerial Parts of Baccharis sphenophylla and Effects against Intracellular Forms of Trypanosoma cruzi. Chem Biodivers 2021; 18:e2100466. [PMID: 34263530 DOI: 10.1002/cbdv.202100466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/13/2021] [Indexed: 11/08/2022]
Abstract
The hexane extract from aerial parts Baccharis sphenophylla Dusén ex Malme (Asteraceae) displayed activity against amastigote forms of Trypanossoma cruzi and was subjected to chromatographic steps to afford one unreported - 7α-hydroxy-ent-abieta-8(14),13(15)-dien-16,12β-olide (1) and three known diterpenes - ent-kaur-16-en-19-oic acid, (2), grandifloric acid (3), and 15β-tiglinoyloxy-ent-kaur-16-en-19-oic acid (4), two sesquiterpenes - spathulenol (5) and oplopanone (6) - as well as hexacosyl p-coumarate (7). Isolated compounds were characterized by NMR and ESI-HR-MS spectra and were evaluated in vitro for activity against amastigote forms of the parasite T. cruzi - the relevant clinical form in the chronic phase of Chagas disease. In addition, the activity of compounds 1-7 against NCTC cells was evaluated. Compounds 1 and 7 showed effectiveness with EC50 values of 21.3 and 16.9 μM, respectively. Both compounds also exhibited reduced toxicity against NCTC cells (CC50 >200 μM) with SI values higher than 9.4 and 11.9. Obtained results suggest that the new ent-abietane diterpene 1 and alkyl coumarate 7 could be used as prototypes for the development of novel and selective semisynthetic derivatives against intracellular forms of T. cruzi.
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Affiliation(s)
- Matheus L Silva
- Center of Natural Sciences and Humanities, Federal University of ABC, SP 09210-580, Santo André, Brazil
| | - Thais A Costa-Silva
- Center of Natural Sciences and Humanities, Federal University of ABC, SP 09210-580, Santo André, Brazil
| | - Guilherme M Antar
- Department of Botany, Institute of Biosciences, University of São Paulo, SP 05508-090, São Paulo, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Instituto Adolfo Lutz, SP 01246-000, São Paulo, Brazil
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Federal University of ABC, SP 09210-580, Santo André, Brazil
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Tanaka N, Amuti S, Takahashi S, Tsuji D, Itoh K, Kashiwada Y. Studies on non-medicinal parts of plant materials: Triterpenes from the roots of Schisandra chinensis. Fitoterapia 2021; 152:104939. [PMID: 34029653 DOI: 10.1016/j.fitote.2021.104939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
Phytochemical study on a non-medicinal part of a plant material for herbal medicine, the roots of Schisandra chinensis, was conducted to isolate five new triterpenes, schinensins A-D (1-4) and 3-O-methylchangnanic acid (5), together with 21 known compounds including 10 triterpenes, one sterol, two sesquiterpenes, seven lignans, and one flavonoid. The structures of new triterpenes (1-5) were assigned on the basis of spectroscopic analyses aided with TDDFT ECD calculations. Schinensin A (1) was a dinortriterpene possessing 28-norschiartane skeleton, while schinensins B-D (2-4) were assigned as 3,4:9,10-disecocycloartane, 3,4-secocycloartane, and cycloartane triterpenes, respectively. In an evaluation of antiproliferative activities against human cancer cell lines, some triterpenes exhibited significant activities against human breast carcinoma MCF-7 cells as compared to the other cell lines (A549, HeLa, and RPMI8226).
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Affiliation(s)
- Naonobu Tanaka
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Saidanxia Amuti
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Sakura Takahashi
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Daisuke Tsuji
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Kohji Itoh
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Yoshiki Kashiwada
- Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima 770-8505, Japan.
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Qiu L, Guo C. Natural Aldose Reductase Inhibitor: A Potential Therapeutic Agent for Non-alcoholic Fatty Liver Disease. Curr Drug Targets 2021; 21:599-609. [PMID: 31589122 DOI: 10.2174/1389450120666191007111712] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 01/09/2023]
Abstract
Aldose reductase (AR) has been reported to be involved in the development of nonalcoholic fatty liver disease (NAFLD). Hepatic AR is induced under hyperglycemia condition and converts excess glucose to lipogenic fructose, which contributes in part to the accumulation of fat in the liver cells of diabetes rodents. In addition, the hyperglycemia-induced AR or nutrition-induced AR causes suppression of the transcriptional activity of peroxisome proliferator-activated receptor (PPAR) α and reduced lipolysis in the liver, which also contribute to the development of NAFLD. Moreover, AR induction in non-alcoholic steatohepatitis (NASH) may aggravate oxidative stress and the expression of inflammatory cytokines in the liver. Here, we summarize the knowledge on AR inhibitors of plant origin and review the effect of some plant-derived AR inhibitors on NAFLD/NASH in rodents. Natural AR inhibitors may improve NAFLD at least in part through attenuating oxidative stress and inflammatory cytokine expression. Some of the natural AR inhibitors have been reported to attenuate hepatic steatosis through the regulation of PPARα-mediated fatty acid oxidation. In this review, we propose that the natural AR inhibitors are potential therapeutic agents for NAFLD.
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Affiliation(s)
- Longxin Qiu
- School of Life Sciences, Longyan University, Longyan 364012, China.,Fujian Province Universities Key Laboratory of Preventive Veterinary Medicine and Biotechnology (Longyan University), Longyan 364012, China.,Fujian Provincial Key Laboratory for the Prevention and Control of Animal Infectious Diseases and Biotechnology, Longyan 364012, China
| | - Chang Guo
- School of Life Sciences, Longyan University, Longyan 364012, China.,Fujian Province Universities Key Laboratory of Preventive Veterinary Medicine and Biotechnology (Longyan University), Longyan 364012, China.,Fujian Provincial Key Laboratory for the Prevention and Control of Animal Infectious Diseases and Biotechnology, Longyan 364012, China
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Bioactive Compounds from Medicinal Plants in Myanmar. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2021; 114:135-251. [PMID: 33792861 DOI: 10.1007/978-3-030-59444-2_2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Myanmar is a country with rich natural resources and of these, medicinal plants play a vital role in the primary health care of its population. The people of Myanmar have used their own system of traditional medicine inclusive of the use of medicinal plants for 2000 years. However, systematic and scientific studies have only recently begun to be reported. Researchers from Japan, Germany, and Korea have collaborated with researchers in Myanmar on medicinal plants since 2000. During the past two decades, over 50 publications have been published in peer-reviewed journals. Altogether, 433 phytoconstituents, including 147 new and 286 known compounds from 26 plant species consisting of 29 samples native to Myanmar, have been collated. In this contribution, phytochemical and biological investigations of these plants, including information on traditional knowledge are compiled and discussed.
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12
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Boudreau A, Richard AJ, Harvey I, Stephens JM. Artemisia scoparia and Metabolic Health: Untapped Potential of an Ancient Remedy for Modern Use. Front Endocrinol (Lausanne) 2021; 12:727061. [PMID: 35211087 PMCID: PMC8861327 DOI: 10.3389/fendo.2021.727061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 12/16/2021] [Indexed: 11/19/2022] Open
Abstract
Botanicals have a long history of medicinal use for a multitude of ailments, and many modern pharmaceuticals were originally isolated from plants or derived from phytochemicals. Among these, artemisinin, first isolated from Artemisia annua, is the foundation for standard anti-malarial therapies. Plants of the genus Artemisia are among the most common herbal remedies across Asia and Central Europe. The species Artemisia scoparia (SCOPA) is widely used in traditional folk medicine for various liver diseases and inflammatory conditions, as well as for infections, fever, pain, cancer, and diabetes. Modern in vivo and in vitro studies have now investigated SCOPA's effects on these pathologies and its ability to mitigate hepatotoxicity, oxidative stress, obesity, diabetes, and other disease states. This review focuses on the effects of SCOPA that are particularly relevant to metabolic health. Indeed, in recent years, an ethanolic extract of SCOPA has been shown to enhance differentiation of cultured adipocytes and to share some properties of thiazolidinediones (TZDs), a class of insulin-sensitizing agonists of the adipogenic transcription factor PPARγ. In a mouse model of diet-induced obesity, SCOPA diet supplementation lowered fasting insulin and glucose levels, while inducing metabolically favorable changes in adipose tissue and liver. These observations are consistent with many lines of evidence from various tissues and cell types known to contribute to metabolic homeostasis, including immune cells, hepatocytes, and pancreatic beta-cells. Compounds belonging to several classes of phytochemicals have been implicated in these effects, and we provide an overview of these bioactives. The ongoing global epidemics of obesity and metabolic disease clearly require novel therapeutic approaches. While the mechanisms involved in SCOPA's effects on metabolic, anti-inflammatory, and oxidative stress pathways are not fully characterized, current data support further investigation of this plant and its bioactives as potential therapeutic agents in obesity-related metabolic dysfunction and many other conditions.
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Affiliation(s)
- Anik Boudreau
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Allison J. Richard
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Innocence Harvey
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Jacqueline M. Stephens
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States
- *Correspondence: Jacqueline M. Stephens,
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Muhammad I, Shams Ul Hassan S, Cheung S, Li X, Wang R, Zhang WD, Yan SK, Zhang Y, Jin HZ. Phytochemical study of Ligularia subspicata and valuation of its anti-inflammatory activity. Fitoterapia 2020; 148:104800. [PMID: 33307175 DOI: 10.1016/j.fitote.2020.104800] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/30/2020] [Accepted: 12/04/2020] [Indexed: 01/10/2023]
Abstract
This report illustrated isolation and identification of 42 compounds comprising five (spicatainoids A-E) undescribed eremophilanolide type sesquiterpenoids and one undescribed nor-eremophilane (spicatainoid F) from Ligularia subspicata.. Among all the isolated new compounds, 4 is reported as the first enantiomeric form of novel eremophilanolide type sesquiterpenoid. Comprehensive analysis of HRESIMS, 1D/2D NMR, experimental circular dichroism (CD), calculated ECD analysis, and X-ray crystallographic (XRD) analysis validated the complete configuration and confirmation of these isolated compounds. All the isolated compounds were tested for the anti-inflammatory potential by measuring the amount of nitric oxide production. Among the tested compounds, 4 was the most effective with 90% NO-inhibition activity. Compounds 1, 2, 3, 9, 10 18, 29, 34, 35 exhibited moderate inhibitory effects against the production of NO, while other compounds displayed no activity even at the concentration of 50 μM. Additionally, compounds 1, 3 and 4 presented moderate anti-inflammatory activity by inhibiting the release of pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6) in LPS-stimulated N9 cells. The IC50 values of compounds 1, 3 and 4 were calculated 39.6 ± 2.7, 42.5 ± 3.8 and 27.60 ± 1.9 μΜ.
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Affiliation(s)
- Ishaq Muhammad
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Syed Shams Ul Hassan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Suet Cheung
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaoqing Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Rui Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wei-Dong Zhang
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shi-Kai Yan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Zhang
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Hui-Zi Jin
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
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Thiagarajan R, Varsha MKNS, Srinivasan V, Ravichandran R, Saraboji K. Vitamin K1 prevents diabetic cataract by inhibiting lens aldose reductase 2 (ALR2) activity. Sci Rep 2019; 9:14684. [PMID: 31604989 PMCID: PMC6789135 DOI: 10.1038/s41598-019-51059-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/24/2019] [Indexed: 12/22/2022] Open
Abstract
This study investigated the potential of vitamin K1 as a novel lens aldose reductase inhibitor in a streptozotocin-induced diabetic cataract model. A single, intraperitoneal injection of streptozotocin (STZ) (35 mg/kg) resulted in hyperglycemia, activation of lens aldose reductase 2 (ALR2) and accumulation of sorbitol in eye lens which could have contributed to diabetic cataract formation. However, when diabetic rats were treated with vitamin K1 (5 mg/kg, sc, twice a week) it resulted in lowering of blood glucose and inhibition of lens aldose reductase activity because of which there was a corresponding decrease in lens sorbitol accumulation. These results suggest that vitamin K1 is a potent inhibitor of lens aldose reductase enzyme and we made an attempt to understand the nature of this inhibition using crude lens homogenate as well as recombinant human aldose reductase enzyme. Our results from protein docking and spectrofluorimetric analyses clearly show that vitamin K1 is a potent inhibitor of ALR2 and this inhibition is primarily mediated by the blockage of DL-glyceraldehyde binding to ALR2. At the same time docking also suggests that vitamin K1 overlaps at the NADPH binding site of ALR2, which probably shows that vitamin K1 could possibly bind both these sites in the enzyme. Another deduction that we can derive from the experiments performed with pure protein is that ALR2 has three levels of affinity, first for NADPH, second for vitamin K1 and third for the substrate DL-glyceraldehyde. This was evident based on the dose-dependency experiments performed with both NADPH and DL-glyceraldehyde. Overall, our study shows the potential of vitamin K1 as an ALR2 inhibitor which primarily blocks enzyme activity by inhibiting substrate interaction of the enzyme. Further structural studies are needed to fully comprehend the exact nature of binding and inhibition of ALR2 by vitamin K1 that could open up possibilities of its therapeutic application.
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Affiliation(s)
- R Thiagarajan
- School of Chemical & Biotechnology, SASTRA University, Tamil Nadu, India.
- Department of Advanced Zoology & Biotechnology, Ramakrishna Mission Vivekananda College, Mylapore, Chennai, 600004, India.
| | - M K N Sai Varsha
- Department of Biotechnology, Indian Institute of Technology, Madras, Chennai, 600036, India
| | - V Srinivasan
- Disease Program Lead - Diabetes, MedGenome Inc., Bangalore, India
| | - R Ravichandran
- Diabetes Research Program, Division of Endocrinology, Department of Medicine, NYU Langone Medical Center, New York, NY, 10016, USA
| | - K Saraboji
- School of Chemical & Biotechnology, SASTRA University, Tamil Nadu, India
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15
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Demir Y, Durmaz L, Taslimi P, Gulçin İ. Antidiabetic properties of dietary phenolic compounds: Inhibition effects on α-amylase, aldose reductase, and α-glycosidase. Biotechnol Appl Biochem 2019; 66:781-786. [PMID: 31135076 DOI: 10.1002/bab.1781] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/26/2019] [Indexed: 11/05/2022]
Abstract
Aldose reductase (AR), α-amylase, and α-glycosidase are vital enzymes to prevent diabetic complications. Here, AR was purified from sheep kidney using elementary methods with 111.11-purification fold and with 0.85% purification yield. The interactions between some phenolic compounds and the AR, α-glycosidase, and α-amylase enzyme were determined. It was found that phenolic compounds exhibit potential inhibitor properties for these enzymes. For α-amylase, studied phenolic compounds showed IC50 values in the range of 601.56-2,067.78 nM. For α-glycosidase, Ki values were found in the range of 169.25 ± 27.22-572.88 ± 106.76 nM. For AR, Ki values in the range of 8.48 ± 0.56-43.26 ± 7.63 µM. However, genistein showed the best inhibition effect toward AR and α-glycosidase, but delphinidin chloride exhibited the best inhibition effect against α-amylase enzyme. We determined that all compounds showed noncompetitive inhibition effect against AR and α-glycosidase. Also, studied phenolic compounds may be useful in the prevention or treatment of diabetic complications.
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Affiliation(s)
- Yeliz Demir
- Department of Pharmacy Services, Nihat Delibalta Göle Vocational High School, Ardahan University, Ardahan, Turkey
| | - Lokman Durmaz
- Department of Medical Services and Technology, Cayirli Vocational School, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey
| | - İlhami Gulçin
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
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16
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Tewari D, Samoilă O, Gocan D, Mocan A, Moldovan C, Devkota HP, Atanasov AG, Zengin G, Echeverría J, Vodnar D, Szabo B, Crişan G. Medicinal Plants and Natural Products Used in Cataract Management. Front Pharmacol 2019; 10:466. [PMID: 31263410 PMCID: PMC6585469 DOI: 10.3389/fphar.2019.00466] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 04/12/2019] [Indexed: 01/02/2023] Open
Abstract
Cataract is the leading reason of blindness worldwide and is defined by the presence of any lens opacities or loss of transparency. The most common symptoms of cataract are impaired vision, decreased contrast sensitivity, color disturbance, and glare. Oxidative stress is among the main mechanisms involved in the development of age-related cataract. Surgery through phacoemulsification and intraocular lens implantation is the most effective method for cataract treatment, however, there are chances of serious complications and irreversible loss of vision associated with the surgery. Natural compounds consisting of antioxidant or anti-inflammatory secondary metabolites can serve as potential leads for anticataract agents. In this review, we tried to document medicinal plants and plant-based natural products used for cataract treatment worldwide, which are gathered from available ethnopharmacological/ethnobotanical data. We have extensively explored a number of recognized databases like Scifinder, PubMed, Science Direct, Google Scholar, and Scopus by using keywords and phrases such as “cataract”, “blindness”, “traditional medicine”, “ethnopharmacology”, “ethnobotany”, “herbs”, “medicinal plants”, or other relevant terms, and summarized the plants/phytoconstituents that are evaluated in different models of cataract and also tabulated 44 plants that are traditionally used in cataract in various folklore medical practices. Moreover, we also categorized the plants according to scientific studies carried out in different cataract models with their mechanisms of action.
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Affiliation(s)
- Devesh Tewari
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Ovidiu Samoilă
- Department of Ophthalmology, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Diana Gocan
- Department of Ophthalmology, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Andrei Mocan
- Department of Pharmaceutical Botany, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Cadmiel Moldovan
- Department of Pharmaceutical Botany, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Hari Prasad Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Atanas G Atanasov
- Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Jastrzębiec, Poland.,Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Gokhan Zengin
- Department of Biology, Faculty of Science, Selcuk University, Konya, Turkey
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Dan Vodnar
- Department of Food Science, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca, Romania
| | - Bianca Szabo
- Department of Anatomy, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Gianina Crişan
- Department of Pharmaceutical Botany, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Sheng L, Yang Y, Zhang Y, Li N. Chemical constituents of Patrinia heterophylla Bunge and selective cytotoxicity against six human tumor cells. JOURNAL OF ETHNOPHARMACOLOGY 2019; 236:129-135. [PMID: 30853646 DOI: 10.1016/j.jep.2019.03.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/03/2019] [Accepted: 03/03/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Patrinia heterophylla Bunge, known as "Mu-Tou-Hui" in China, is distributed in most provinces and regions of China. As a traditional medicinal plant, which was first found in <Ben- Cao-Gang- Mu>. In many traditional herbal books, there are records of "Mu-Tou-Hui" of treatment for uterine bleeding, cancer, swelling pain, leukemia, etc. However, there are few studies on the chemical constituents of Patrinia heterophylla Bunge. AIM OF THE STUDY To investigate the chemical constituents of P. heterophylla and the basis of their antitumor activity. MATERIALS AND METHODS 15 compounds were isolated from roots and rhizomes of P. heterophylla by repeating various column chromatography techniques, whose structures were determined by organic spectrum analysis methods and compared with published data. The cytotoxicities were evaluated by MTT assay on six cancer cell lines: human melanoma cell (A375), human hepatocellular carcinoma cell (SMMC-7721), human gastric cancer cell (SGC-7901), human cervical cancer cell (HeLa), human colon cancer cell (HCT-116), and human breast cancer cell (MDA-MB-231). The apoptosis-inducing activities of compounds 1, 5, 12 and 15 in A375 tumor cell determined by flow cytometry. RESULT Five phenylpropanoids, ethyl caffeate (1), coniferaldehyde (5), trans-p-coumaryl aldehyde (6), caffeic acid methyl ester (12), and 3,4-dihydroxycinnamic acid (15), four acetophenones, 1-(2,4-dihydroxyphenyl) ethanone (2), 2',5'-Dihydroxyacetophenone (3), cynanchone A (8), and cynandione A (10), two phenols, vanillin (4) and catechol (9), two iridoids, sarracenin (7) and patriscabrol (11), one alkane, tetracosane (14), and one coumarin, scopoletin (13), were isolated from the EtOH extracts. Of them, compounds 1-10, 12 and 14-15 were isolated for the first time from the roots of P. heterophylla. Compounds 1 and 15 were reported for the first time with in vitro inhibitory activity against tumor cells. MTT assay showed that compounds 1, 5-9, 12-13 and 15 had selective cytotoxic activities (IC50 27.20-163.03 μM) against tumor cells. Apoptosis detected by flow cytometry revealed that compounds 1, 5, 12 and 15 can induce apoptosis for A375 at low concentrations when the concentrations of compounds 1, 5, 12 and 15 are the value of 14, 40, 34, 108 μM, the percentages of apoptotic cells were about 50%. CONCLUSIONS Compounds 1-10, 12 and 14-15 were isolated for the first time from the P. heterophylla. This result enriches the previous studies on the chemical constituents of P. heterophylla. Compounds 1 and 15 were reported for the first time to have cytotoxic activities against tumor cells. Compounds 1, 5, 6, 7, 12, 15 showed cytotoxic activities against tumor cells. This result reveals that the active ingredient of P. heterophylla are composed of phenylpropanoids, iridoids and coumarins. This study provides some theoretical basis for the anti-tumor research of P. heterophylla.
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Affiliation(s)
- Li Sheng
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Yue Yang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Yi Zhang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Ning Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
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18
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Cheng MJ, Wu MD, Weng JR, Chan HY, Hsieh SY, Chang HH, Lin CL, Lin CC, Chen JJ. Chemical Constituents of the Entomopathogenic Fungus of Ophiocordyceps sobolifera. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02629-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Cataract Preventive Role of Isolated Phytoconstituents: Findings from a Decade of Research. Nutrients 2018; 10:nu10111580. [PMID: 30373159 PMCID: PMC6265913 DOI: 10.3390/nu10111580] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/10/2018] [Accepted: 10/15/2018] [Indexed: 12/19/2022] Open
Abstract
Cataract is an eye disease with clouding of the eye lens leading to disrupted vision, which often develops slowly and causes blurriness of the eyesight. Although the restoration of the vision in people with cataract is conducted through surgery, the costs and risks remain an issue. Botanical drugs have been evaluated for their potential efficacies in reducing cataract formation decades ago and major active phytoconstituents were isolated from the plant extracts. The aim of this review is to find effective phytoconstituents in cataract treatments in vitro, ex vivo, and in vivo. A literature search was synthesized from the databases of Pubmed, Science Direct, Google Scholar, Web of Science, and Scopus using different combinations of keywords. Selection of all manuscripts were based on inclusion and exclusion criteria together with analysis of publication year, plant species, isolated phytoconstituents, and evaluated cataract activities. Scientists have focused their attention not only for anti-cataract activity in vitro, but also in ex vivo and in vivo from the review of active phytoconstituents in medicinal plants. In our present review, we identified 58 active phytoconstituents with strong anti-cataract effects at in vitro and ex vivo with lack of in vivo studies. Considering the benefits of anti-cataract activities require critical evaluation, more in vivo and clinical trials need to be conducted to increase our understanding on the possible mechanisms of action and the therapeutic effects.
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Grochowski DM, Locatelli M, Granica S, Cacciagrano F, Tomczyk M. A Review on the Dietary Flavonoid Tiliroside. Compr Rev Food Sci Food Saf 2018; 17:1395-1421. [PMID: 33350157 DOI: 10.1111/1541-4337.12389] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 07/17/2018] [Accepted: 07/25/2018] [Indexed: 12/12/2022]
Abstract
Among flavonoid derivatives, tiliroside is a flavonoid contained in several edible plants or specific plant parts (fruits, leaves, or roots). These parts are often widely used as both food and medicines, in the treatment of various ailments and, in some cases, as food supplements. Considering the easy access to many publications concerning tiliroside and the lack of a review that summarizes the current progress in studies on its safety, efficacy, and presence in the plant kingdom, we present here a review paper on tiliroside and its principal derivatives. The paper also highlights the basic knowledge regarding this molecule, its derivatives, and the analytical approaches used for extraction and quantification, as well as reports on the biological activities against different key enzymes linked to various human diseases. The reported information is also devoted to highlighting the concept "learn from nature to discover new products," particularly in the development of new drugs, food supplements, and nutraceuticals, starting from a natural lead compound such as tiliroside and improving its biological activities (and selectivities) against a specific target for therapeutic purposes.
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Affiliation(s)
- Daniel M Grochowski
- Dept. of Pharmacognosy, Faculty of Pharmacy with the Div. of Laboratory Medicine, Medical Univ. of Białystok, Białystok, Poland
| | - Marcello Locatelli
- Dept. of Pharmacy, Univ. "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Sebastian Granica
- Dept. of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Warsaw Medical Univ., Warsaw, Poland
| | | | - Michał Tomczyk
- Dept. of Pharmacognosy, Faculty of Pharmacy with the Div. of Laboratory Medicine, Medical Univ. of Białystok, Białystok, Poland
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21
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Ramírez-Reyes T, Monribot-Villanueva JL, Jiménez-Martínez OD, Aguilar-Colorado ÁS, Bonilla-Landa I, Flores-Estévez N, Luna-Rodríguez M, Guerrero-Analco JA. Sesquiterpene Lactones and Phenols from Polyfollicles of Magnolia vovidessi and their Antimicrobial Activity. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Bioassay-guided fractionation of an active crude extract (EtOAc) of polyfollicles of Magnolia vovidessi, an endemic medicinal plant of the cloud forest of Mexico, led to the isolation and identification of shizukolidol (1), an eudesmane-type sesquiterpenoid lactone that showed antibacterial activity against the economically important phytopathogenic bacterium Chryseobacterium sp. (MIC= 400 μg/mL). In addition, 4α,8β-dihydroxy-5α(H)-eudesm-7(11)-en-8,12-olide 8 (2), rutin, scopoline and scopoletine were also isolated as were mexicanin, parthenolide, costunolide, astragalin, quercetin, hesperidin, p-coumaric acid, chlorogenic acid, vanillin, vanillic acid, 4-hydroxybenzoic acid, protocatechuic acid and shikimic acid identified by a dereplication-like procedure using LC-ESI-MS/MS. Rutin displayed mild anti-oomicite activity against phytopathogen Phytophthora cinnamomi.
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Affiliation(s)
- Thalía Ramírez-Reyes
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070 Xalapa, Veracruz, México
| | - Juan L. Monribot-Villanueva
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070 Xalapa, Veracruz, México
| | - Oscar D. Jiménez-Martínez
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070 Xalapa, Veracruz, México
| | - Ángel S. Aguilar-Colorado
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070 Xalapa, Veracruz, México
| | - Israel Bonilla-Landa
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070 Xalapa, Veracruz, México
| | - Norma Flores-Estévez
- Instituto de Biotecnología y Ecología Aplicada (INBIOTECA), Universidad Veracruzana, Xalapa 91090, México
| | - Mauricio Luna-Rodríguez
- Laboratorio de Genética e Interacciones Planta Microorganismos, Facultad de Ciencias Agrícolas, Universidad Veracruzana, 91090, Xalapa, Veracruz, México
| | - José A. Guerrero-Analco
- Laboratorio de Química de Productos Naturales, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C.-Clúster Científico y Tecnológico BioMimic®, 91070 Xalapa, Veracruz, México
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22
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Wang T, Wu X, Liu Y, Luo Y, Li X, Zhou Y, Yang A, Yan Z, Ye L, Chen S, Fu J, Jiao X. Chemical constituents from ethanol extract of Polyalthia rumphii branches and their cytotoxicity evaluation. REVISTA BRASILEIRA DE FARMACOGNOSIA 2018. [DOI: 10.1016/j.bjp.2018.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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23
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A modification on the vector cosine algorithm of Similarity Analysis for improved discriminative capacity and its application to the quality control of Magnoliae Flos. J Chromatogr A 2017; 1518:34-45. [DOI: 10.1016/j.chroma.2017.08.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 08/01/2017] [Accepted: 08/10/2017] [Indexed: 01/27/2023]
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24
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Sadowska-Bartosz I, Bartosz G. Effect of glycation inhibitors on aging and age-related diseases. Mech Ageing Dev 2016; 160:1-18. [PMID: 27671971 DOI: 10.1016/j.mad.2016.09.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/30/2016] [Accepted: 09/21/2016] [Indexed: 02/07/2023]
Abstract
Vast evidence supports the view that glycation of proteins is one of the main factors contributing to aging and is an important element of etiopathology of age-related diseases, especially type 2 diabetes mellitus, cataract and neurodegenerative diseases. Counteracting glycation can therefore be a means of increasing both the lifespan and healthspan. In this review, accumulation of glycation products during aging is presented, pathophysiological effects of glycation are discussed and ways of attenuation of the effects of glycation are described, concentrating on prevention of glycation. The effects of glycation and glycation inhibitors on the course of selected age-related diseases, such as Alzheimer's disease, Parkinson's disease and cataract are also reviewed.
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Affiliation(s)
- Izabela Sadowska-Bartosz
- Department of Biochemistry and Cell Biology, Faculty of Biology and Agriculture, University of Rzeszow, Zelwerowicza St. 4, 35-604 Rzeszów, Poland.
| | - Grzegorz Bartosz
- Department of Biochemistry and Cell Biology, Faculty of Biology and Agriculture, University of Rzeszow, Zelwerowicza St. 4, 35-604 Rzeszów, Poland; Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland
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25
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Feng WS, He YH, Zheng XK, Wang JC, Cao YG, Zhang YL, Song K. Four New Monoterpenoid Glycosides from the Flower Buds of Magnolia biondii. Molecules 2016; 21:E728. [PMID: 27271584 PMCID: PMC6274139 DOI: 10.3390/molecules21060728] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 04/30/2016] [Indexed: 11/17/2022] Open
Abstract
Four new monoterpenoid glycosides 1-4, named magnoliaterpenoid A-D, were isolated from a 50% aqueous acetone extract of flower buds of Magnolia biondii, along with one known compound, (1'R,3'S,5'R,8'S,2Z,4E)-dihydrophaseic acid 3-O-β-d-glucopyranoside (5). Their structures and relative configuration were identified by extensive spectroscopic analysis (IR, UV, MS, 1D and 2D NMR). The aglycones of these four new compounds possess seven-membered rings systems, which are very rare. A plausible biosynthetic route for the four new compounds was proposed via the biogenetic isoprene rule. Compounds 1, 2, 3, and 4 showed no antimicrobial activity at the concentration range of 1.95-250 µg/mL.
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Affiliation(s)
- Wei-Sheng Feng
- Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China.
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Yu-Huan He
- Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China.
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Xiao-Ke Zheng
- Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China.
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Jian-Chao Wang
- Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China.
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Yan-Gang Cao
- Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China.
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Yan-Li Zhang
- Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China.
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Kai Song
- Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou 450046, China.
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
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Kim CS, Kim J, Lee YM, Sohn E, Kim JS. Esculetin, a Coumarin Derivative, Inhibits Aldose Reductase Activity in vitro and Cataractogenesis in Galactose-Fed Rats. Biomol Ther (Seoul) 2016; 24:178-83. [PMID: 26902086 PMCID: PMC4774499 DOI: 10.4062/biomolther.2015.101] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 10/24/2015] [Accepted: 11/20/2015] [Indexed: 11/05/2022] Open
Abstract
Naturally occurring coumarin compounds have received substantial attention due to their pharmaceutical effects. Esculetin is a coumarin derivative and a polyphenol compound that is used in a variety of therapeutic and pharmacological strategies. However, its effect on aldose reductase activity remains poorly understood. In this study, the potential beneficial effects of esculetin on lenticular aldose reductase were investigated in galactose-fed (GAL) rats, an animal model of sugar cataracts. Cataracts were induced in Sprague-Dawley (SD) rats via a 50% galactose diet for 2 weeks, and groups of GAL rats were orally treated with esculetin (10 or 50 mg/kg body weight). In vehicle-treated GAL rats, lens opacification was observed, and swelling and membrane rupture of the lens fiber cells were increased. Additionally, aldose reductase was highly expressed in the lens epithelium and superficial cortical fibers during cataract development in the GAL rats. Esculetin reduced rat lens aldose reductase (RLAR) activity in vitro, and esculetin treatment significantly inhibited lens opacity, as well as morphological alterations, such as swelling, vacuolation and liquefaction of lens fibers, via the inhibition of aldose reductase in the GAL rats. These results indicate that esculetin is a useful treatment for galactose-induced cataracts.
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Affiliation(s)
- Chan-Sik Kim
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Junghyun Kim
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Yun Mi Lee
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Eunjin Sohn
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Jin Sook Kim
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
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Basu M, Mayana K, Xavier S, Balachandran S, Mishra N. Effect of scopoletin on monoamine oxidases and brain amines. Neurochem Int 2016; 93:113-7. [DOI: 10.1016/j.neuint.2016.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 12/13/2015] [Accepted: 01/16/2016] [Indexed: 10/22/2022]
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Jin YJ, Lin CC, Lu TM, Li JH, Chen IS, Kuo YH, Ko HH. Chemical constituents derived from Artocarpus xanthocarpus as inhibitors of melanin biosynthesis. PHYTOCHEMISTRY 2015; 117:424-435. [PMID: 26188915 DOI: 10.1016/j.phytochem.2015.07.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 07/05/2015] [Accepted: 07/09/2015] [Indexed: 06/04/2023]
Abstract
Twenty-four compounds, including the previously unknown artoxanthocarpuone A, artoxanthocarpuone B, hydroxylakoochin A, methoxylakoochin A, epoxylakoochin A, and artoxanthol, were isolated and characterized spectroscopically. Among them, artoxanthol is stilbene oligomer presumably constructed in a 5,11,12-triphenyl hexahydrochrysene scaffold by a Diels-Alder type of reaction, for which a biosynthetic pathway is proposed. Artoxanthol, alboctalol, steppogenin, norartocarpetin, resveratrol, oxyresveratrol, and chlorophorin potently inhibited mushroom tyrosinase activity with IC50 values from 0.9 to 5.7 μM that were all far stronger than the positive controls. Artoxanthocarpuone A, artoxanthocarpuone B, methoxylakoochin A, lakoochin A, cudraflavone C, artonin A, resveratrol, and chlorophorin reduced tyrosinase activity and inhibited α-melanocyte-stimulating hormone-induced melanin production in B16F10 melanoma cells without affecting cell proliferation. Collectively, the results suggest that the constituents of Artocarpus xanthocarpus have potential to be used as depigmentation agents.
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Affiliation(s)
- Yu-Jing Jin
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Cha-Chi Lin
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Tzy-Ming Lu
- Department of Pharmacy, Tajen University, Pingtung County 907, Taiwan
| | - Jih-Heng Li
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Ih-Sheng Chen
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Research Center for Natural Products and Drug Development, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yueh-Hsiung Kuo
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan; Department of Biotechnology, Asia University, Taichung 413, Taiwan
| | - Horng-Huey Ko
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Research Center for Natural Products and Drug Development, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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Kuhnert E, Surup F, Wiebach V, Bernecker S, Stadler M. Botryane, noreudesmane and abietane terpenoids from the ascomycete Hypoxylon rickii. PHYTOCHEMISTRY 2015; 117:116-122. [PMID: 26071840 DOI: 10.1016/j.phytol.2014.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/27/2015] [Accepted: 06/02/2015] [Indexed: 05/21/2023]
Abstract
In the course of our screening for new bioactive natural products, a culture of Hypoxylon rickii, a xylariaceous ascomycete collected from the Caribbean island Martinique, was identified as extraordinary prolific producer of secondary metabolites. Ten metabolites of terpenoid origin were isolated from submerged cultures of this species by preparative HPLC. Their structures were elucidated using spectral techniques including 2D NMR and HRESIMS. Three of the compounds were elucidated as new botryanes (1-3) along with three known ones, i.e. (3aS)-3a,5,5,8-tetramethyl-3,3a,4,5-tetrahydro-1H-cyclopenta[de]isochromen-1-one (4), (3aS,8R)-3a,5,5,8-tetramethyl-3,3a,4,5,7,8-hexahydro-1H-cyclopenta[de]isochromen-1-one (5) and botryenanol (6). Further three new sesquiterpenoids featured a 14-noreudesmane-type skeleton and were named hypoxylan A-C (7-9); the diterpenoid rickitin A (10) contains an abietane-type backbone. Compounds 1, 2, 3, 7, and 10 showed cytotoxic effects against murine cells.
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Affiliation(s)
- Eric Kuhnert
- Helmholtz Centre for Infection Research GmbH (HZI), Department Microbial Drugs, Inhoffenstraße 7, 38124 Braunschweig, Germany; German Centre for Infection Research Association (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Frank Surup
- Helmholtz Centre for Infection Research GmbH (HZI), Department Microbial Drugs, Inhoffenstraße 7, 38124 Braunschweig, Germany; German Centre for Infection Research Association (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Vincent Wiebach
- Helmholtz Centre for Infection Research GmbH (HZI), Department Microbial Drugs, Inhoffenstraße 7, 38124 Braunschweig, Germany; German Centre for Infection Research Association (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Steffen Bernecker
- Helmholtz Centre for Infection Research GmbH (HZI), Department Microbial Drugs, Inhoffenstraße 7, 38124 Braunschweig, Germany; German Centre for Infection Research Association (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Marc Stadler
- Helmholtz Centre for Infection Research GmbH (HZI), Department Microbial Drugs, Inhoffenstraße 7, 38124 Braunschweig, Germany; German Centre for Infection Research Association (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany
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Chang WC, Wu SC, Xu KD, Liao BC, Wu JF, Cheng AS. Scopoletin protects against methylglyoxal-induced hyperglycemia and insulin resistance mediated by suppression of advanced glycation endproducts (AGEs) generation and anti-glycation. Molecules 2015; 20:2786-801. [PMID: 25671364 PMCID: PMC6272799 DOI: 10.3390/molecules20022786] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/03/2015] [Indexed: 12/13/2022] Open
Abstract
Recently, several types of foods and drinks, including coffee, cream, and cake, have been found to result in high methylglyoxal (MG) levels in the plasma, thus causing both nutritional and health concerns. MG can be metabolized by phase-II enzymes in liver through the positive regulation of nuclear factor-erythroid 2-related factor 2 (Nrf2). In this study, we investigated the ability of scopoletin (SP) to protect against MG-induced hyperglycemia and insulin resistance. Recently, SP was shown to be a peroxisome proliferator-activated receptor-γ activator to elevate insulin sensitivity. We investigated the effects of oral administration of SP on the metabolic, biochemical, and molecular abnormalities characteristic of type 2 diabetes in MG-treated Wistar rats to understand the potential mechanism of scopoletin for diabetes protection. Our results suggested that SP activated Nrf2 by Ser40 phosphorylation, resulting in the metabolism of MG into d-lactic acid and the inhibition of AGEs generation, which reduced the accumulation of AGEs in the livers of MG-induced rats. In this manner, SP improved the results of the oral glucose tolerance test and dyslipidemia. Moreover, SP also increased the plasma translocation of glucose transporter-2 and promoted Akt phosphorylation caused by insulin treatment in MG-treated FL83B hepatocytes. In contrast, SP effectively suppressed protein tyrosine phosphatase 1B (PTP1B) expression, thereby alleviating insulin resistance. These findings suggest that SP acts as an anti-glycation and anti-diabetic agent, and thus has therapeutic potential for the prevention of diabetes.
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Affiliation(s)
- Wen-Chang Chang
- Department of Medicinal Plant Development, Yupintang Traditional Chinese Medicine Foundation, 4F., No.2, Ln. 138, Yongyuan Rd., Yonghe Dist., New Taipei City 234, Taiwan.
| | - Shinn-Chih Wu
- Department of Animal Science and Technology, National Taiwan University, 59 Roosevelt Road Section 4, Taipei 10617, Taiwan.
| | - Kun-Di Xu
- Department of Medicinal Plant Development, Yupintang Traditional Chinese Medicine Foundation, 4F., No.2, Ln. 138, Yongyuan Rd., Yonghe Dist., New Taipei City 234, Taiwan.
| | - Bo-Chieh Liao
- Department of Medicinal Plant Development, Yupintang Traditional Chinese Medicine Foundation, 4F., No.2, Ln. 138, Yongyuan Rd., Yonghe Dist., New Taipei City 234, Taiwan.
| | - Jia-Feng Wu
- Department of Medicinal Plant Development, Yupintang Traditional Chinese Medicine Foundation, 4F., No.2, Ln. 138, Yongyuan Rd., Yonghe Dist., New Taipei City 234, Taiwan.
| | - An-Sheng Cheng
- Department of Medicinal Plant Development, Yupintang Traditional Chinese Medicine Foundation, 4F., No.2, Ln. 138, Yongyuan Rd., Yonghe Dist., New Taipei City 234, Taiwan.
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BACE1 and cholinesterase inhibitory activities of Nelumbo nucifera embryos. Arch Pharm Res 2014; 38:1178-87. [PMID: 25300425 DOI: 10.1007/s12272-014-0492-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Accepted: 10/03/2014] [Indexed: 01/26/2023]
Abstract
The aim of the present study was to evaluate the comparative anti-Alzheimer's disease (AD) activities of different parts of Nelumbo nucifera (leaves, de-embryo seeds, embryos, rhizomes, and stamens) in order to determine the selectivity and efficient use of its individual components. Anti-AD activities of different parts of N. nucifera were evaluated via inhibitory activities on acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and β-site amyloid precursor protein-cleaving enzyme 1 (BACE1) along with scavenging activity on peroxynitrite (ONOO(-)). Among the evaluated parts of N. nucifera, the embryo extract exhibited significant inhibitory potential against BACE1 and BChE as well as scavenging activity against ONOO(-). Thus, the embryo extract was selected for detailed investigation on anti-AD activity using BACE1- and ChEs-inhibitory assays. Among the different solvent-soluble fractions, the dichloromethane (CH2Cl2), ethyl acetate (EtOAc), and n-butanol (n-BuOH) fractions showed promising ChEs and BACE1 inhibitory activities. Repeated column chromatography of the CH2Cl2, EtOAc and n-BuOH fractions yielded compounds 1-5, which were neferine (1), liensinine (2), vitexin (3), quercetin 3-O-glucoside (4) and northalifoline (5). Compound 2 exhibited potent inhibitory activities on BACE1, AChE, and BChE with respective IC50 values of 6.37 ± 0.13, 0.34 ± 0.02, and 9.96 ± 0.47 µM. Likewise, compound 1 showed potent inhibitory activities on BACE1, AChE, and BChE with IC50 values of 28.51 ± 4.04, 14.19 ± 1.46, and 37.18 ± 0.59 µM, respectively; the IC50 values of 3 were 19.25 ± 3.03, 16.62 ± 1.43, and 11.53 ± 2.21 µM, respectively. In conclusion, we identified potent ChEs- and BACE1-inhibitory activities of N. nucifera as well as its isolated constituents, which may be further explored to develop therapeutic and preventive agents for AD and oxidative stress related diseases.
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Meerungrueang W, Panichayupakaranant P. Antimicrobial activities of some Thai traditional medical longevity formulations from plants and antibacterial compounds fromFicus foveolata. PHARMACEUTICAL BIOLOGY 2014; 52:1104-9. [PMID: 24611777 DOI: 10.3109/13880209.2013.877493] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- W Meerungrueang
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University , Hat-Yai, Songkhla , Thailand and
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Scopoletin inhibits rat aldose reductase activity and cataractogenesis in galactose-fed rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:787138. [PMID: 24101940 PMCID: PMC3786474 DOI: 10.1155/2013/787138] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 08/13/2013] [Accepted: 08/13/2013] [Indexed: 11/29/2022]
Abstract
Cataracts are a major cause of human blindness. Aldose reductase (AR) is an important rate-limiting enzyme that contributes to cataract induction in diabetic patients. Scopoletin is the main bioactive constituent of flower buds from Magnolia fargesii and is known to inhibit AR activity. To assess scopoletin's ability to mitigate sugar cataract formation in vivo, we studied its effects in a rat model of dietary galactose-induced sugar cataracts. Galactose-fed rats were orally dosed with scopoletin (10 or 50 mg/kg body weight) once a day for 2 weeks. Administering scopoletin delayed the progression of the cataracts that were induced by dietary galactose. Scopoletin also prevented galactose-induced changes in lens morphology, such as lens fiber swelling and membrane rupture. Scopoletin's protective effect against sugar cataracts was mediated by inhibiting both AR activity and oxidative stress. These results suggest that scopoletin is a useful treatment for sugar cataracts.
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Islam MN, Choi SH, Moon HE, Park JJ, Jung HA, Woo MH, Woo HC, Choi JS. The inhibitory activities of the edible green alga Capsosiphon fulvescens on rat lens aldose reductase and advanced glycation end products formation. Eur J Nutr 2013; 53:233-42. [DOI: 10.1007/s00394-013-0521-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 03/28/2013] [Indexed: 02/07/2023]
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Patel D, Kumar R, Sairam K, Hemalatha S. Pharmacologically tested aldose reductase inhibitors isolated from plant sources — A concise report. Chin J Nat Med 2012. [DOI: 10.1016/s1875-5364(12)60078-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Nyunt KS, Elkhateeb A, Tosa Y, Nabata K, Katakura K, Matsuura H. Isolation of Antitrypanosomal Compounds from Vitis repens, a Medicinal Plant of Myanmar. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Bioactivity-guided fractionation of an ethanolic extract of Vitis repens led to the isolation of resveratrol (1), 11- O-acetyl bergenin (2), and stigmast-4-en-3-one (3). The compounds were examined for their in vitro antitrypanosomal activities against trypomastigotes of Trypanosoma evansi. Resveratrol showed antitrypanosomal activity with an IC50 value of 0.13 μM, whereas 11- O-acetyl bergenin and stigmast-4-en-3-one exhibited IC50 values of 0.17 and 0.15 μM, respectively.
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Affiliation(s)
- Khine Swe Nyunt
- Laboratory of Bioorganic Chemistry, Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Ahmed Elkhateeb
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Japan
| | - Yusuke Tosa
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Japan
| | - Kensuke Nabata
- Laboratory of Bioorganic Chemistry, Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Ken Katakura
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Japan
| | - Hideyuki Matsuura
- Laboratory of Bioorganic Chemistry, Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
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