1
|
Li A, La M, Wang Y, Chen T, Mian R, He F, Li Y, Zou D. Target-guided isolation and purification of cyclooxygenase-2 inhibitors from Meconopsis integrifolia (Maxim.) Franch. by high-speed counter-current chromatography combined with ultrafiltration liquid chromatography. J Sep Sci 2024; 47:e2300722. [PMID: 38234021 DOI: 10.1002/jssc.202300722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/04/2023] [Accepted: 12/22/2023] [Indexed: 01/19/2024]
Abstract
Meconopsis integrifolia (Maxim.) Franch. is used extensively in traditional Tibetan medicine for its potent anti-inflammatory properties. In this study, six cyclooxygenase-2 (COX-2) inhibitors were purified from M. integrifolia using high-speed counter-current chromatography guided by ultrafiltration liquid chromatography (ultrafiltration-LC). First, ultrafiltration-LC was performed to profile the COX-2 inhibitors in M. integrifolia. The reflux extraction conditions were further optimized using response surface methodology, and the results showed that the targeted COX-2 inhibitors could be well enriched under the optimized extraction conditions. Then the six target COX-2 inhibitors were separated by high-speed countercurrent chromatography with a solvent system composed of ethyl acetate/n-butanol/water (4:1:4, v/v/v. Finally, the six COX-2 inhibitors, including 21.2 mg of 8-hydroxyluteolin 7-sophoroside, 29.6 mg of 8-hydroxyluteolin 7-[6'''-acetylallosyl-(1→2)-glucoside], 42.5 mg of Sinocrassoside D3, 54.1 mg of Hypolaetin 7-[6'''-acetylallosyll-(l→2)-3''-acetylglucoside, 30.6 mg of Hypolaetin 7-[6'''-acetylallosyll-(l→2)-6''-acetylglucoside and 17.8 mg of Hypolaetin were obtained from 500 mg of sample. Their structures were elucidated by 1 H-NMR spectroscopy. This study reveals that ultrafiltration-LC combined with high-speed counter-current chromatography is a robust and efficient strategy for target-guided isolation and purification of bioactive molecules. It also enhances the scientific understanding of the anti-inflammatory properties of M. integrifolia but also paves the way for its further medicinal applications.
Collapse
Affiliation(s)
- Aijing Li
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
| | - Mencuo La
- School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Yao Wang
- School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Tao Chen
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
| | - Ruisha Mian
- School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Fangfang He
- School of Life Science, Qinghai Normal University, Xining, P. R. China
| | - Yulin Li
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
| | - Denglang Zou
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
- School of Life Science, Qinghai Normal University, Xining, P. R. China
| |
Collapse
|
2
|
Morikawa T. Pharmaceutical Food Science: Search for Bio-Functional Molecules Obtained from Natural Resources to Prevent and Ameliorate Lifestyle Diseases. Chem Pharm Bull (Tokyo) 2023; 71:756-765. [PMID: 37779077 DOI: 10.1248/cpb.c23-00518] [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] [Indexed: 10/03/2023]
Abstract
In this review, our resent pharmaceutical food science research for bio-functional molecules obtained from natural resources that contribute to i) suppression of postprandial blood glucose elevation and/or improvement of glucose tolerance and ii) reduction of visceral fat accumulation and improvement of lipid metabolism were summarized. Based on studies using MONOTORI science, salacinol (1), neokotalanol (4), and trans-tiliroside (20) have been approved or notified by the Consumer Affairs Agency in Japan as functional substances in food with health claims, Food for Specified Health Use and Food with Functional Claims.
Collapse
Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kindai University
- Antiaging Center, Kindai University
| |
Collapse
|
3
|
Grewal AS, Thapa K, Kanojia N, Sharma N, Singh S. Natural Compounds as Source of Aldose Reductase (AR) Inhibitors for the Treatment of Diabetic Complications: A Mini Review. Curr Drug Metab 2021; 21:1091-1116. [PMID: 33069193 DOI: 10.2174/1389200221666201016124125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/07/2020] [Accepted: 07/18/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Aldol reductase (AR) is the polyol pathway's main enzyme that portrays a crucial part in developing 'complications of diabetes' involving cataract, retinopathy, nephropathy, and neuropathy. These diabetic abnormalities are triggered tremendously via aggregation of sorbitol formation (catalyzed by AR) in the polyol pathway. Consequently, it represents an admirable therapeutic target and vast research was done for the discovery of novel molecules as potential AR inhibitors for diabetic complications. OBJECTIVE This review article has been planned to discuss an outline of diabetic complications, AR and its role in diabetic complications, natural compounds reported as AR inhibitors, and benefits of natural/plant derived AR inhibitors for the management of diabetic abnormalities. RESULTS The goal of AR inhibition remedy is to stabilize the increased flux of blood glucose and sorbitol via the 'polyol pathway' in the affected tissues. A variety of synthetic inhibitors of AR have been established such as tolrestat and sorbinil, but both of these face limitations including low permeability and health problems. Pharmaceutical industries and other scientists were also undertaking work to develop newer, active, and 'safe' AR inhibitors from natural sources. Therefore, several naturally found molecules were documented to possess a potent inhibitory action on AR activity. CONCLUSION Natural inhibitors of AR appeared as harmless pharmacological agents for controlling diabetic complications. The detailed literature throughout this article shows the significance of herbal extracts and phytochemicals as prospective useful AR inhibitors in treating diabetic complications.
Collapse
Affiliation(s)
- Ajmer Singh Grewal
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Komal Thapa
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Neha Kanojia
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| |
Collapse
|
4
|
Morikawa T, Ninomiya K, Tanabe G, Matsuda H, Yoshikawa M, Muraoka O. A review of antidiabetic active thiosugar sulfoniums, salacinol and neokotalanol, from plants of the genus Salacia. J Nat Med 2021; 75:449-466. [PMID: 33900535 PMCID: PMC8159842 DOI: 10.1007/s11418-021-01522-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/20/2021] [Indexed: 12/17/2022]
Abstract
During our studies characterizing functional substances from food resources for the prevention and treatment of lifestyle-related diseases, we isolated the active constituents, salacinol (1) and neokotalanol (4), and related thiosugar sulfoniums, from the roots and stems of the genus Salacia plants [Celastraceae (Hippocrateaceae)] such as Salacia reticulata Wight, S. oblonga Wall., and S. chinensis L., and observed their antidiabetic effects. These plant materials have been used traditionally in Ayurvedic medicine as a specific remedy at the early stage of diabetes, and have been extensively consumed in Japan, the United States, and other countries as a food supplement for the prevention of obesity and diabetes. Here, we review our studies on the antidiabetic effects of plants from the genus Salacia, from basic chemical and pharmacological research to their application and development as new functional food ingredients.
Collapse
Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan.
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan.
| | - Kiyofumi Ninomiya
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
- School of Pharmacy, Shujitsu University, 1-6-1 Nishigawara, Naka-ku, Okayama, Okayama, 703-8516, Japan
| | - Genzoh Tanabe
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
| | - Hisashi Matsuda
- Kyoto Pharmaceutical University, 1 Shichono-cho, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Masayuki Yoshikawa
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
- Kyoto Pharmaceutical University, 1 Shichono-cho, Misasagi, Yamashina-ku, Kyoto, 607-8412, Japan
| | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
| |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Morikawa T, Nagatomo A, Oka T, Miki Y, Taira N, Shibano-Kitahara M, Hori Y, Muraoka O, Ninomiya K. Glucose Tolerance-Improving Activity of Helichrysoside in Mice and Its Structural Requirements for Promoting Glucose and Lipid Metabolism. Int J Mol Sci 2019; 20:ijms20246322. [PMID: 31847420 PMCID: PMC6941121 DOI: 10.3390/ijms20246322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 01/02/2023] Open
Abstract
An acylated flavonol glycoside, helichrysoside, at a dose of 10 mg/kg/day per os for 14 days, improved the glucose tolerance in mice without affecting the food intake, visceral fat weight, liver weight, and other plasma parameters. In this study, using hepatoblastoma-derived HepG2 cells, helichrysoside, trans-tiliroside, and kaempferol 3-O-β-d-glucopyranoside enhanced glucose consumption from the medium, but their aglycones and p-coumaric acid did not show this activity. In addition, several acylated flavonol glycosides were synthesized to clarify the structural requirements for lipid metabolism using HepG2 cells. The results showed that helichrysoside and related analogs significantly inhibited triglyceride (TG) accumulation in these cells. The inhibition by helichrysoside was more potent than that by other acylated flavonol glycosides, related flavonol glycosides, and organic acids. As for the TG metabolism-promoting activity in high glucose-pretreated HepG2 cells, helichrysoside, related analogs, and their aglycones were found to significantly reduce the TG contents in HepG2 cells. However, the desacyl flavonol glycosides and organic acids derived from the acyl groups did not exhibit an inhibitory impact on the TG contents in HepG2 cells. These results suggest that the existence of the acyl moiety at the 6′′ position in the D-glucopyranosyl part is essential for glucose and lipid metabolism-promoting activities.
Collapse
Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
- Correspondence: ; Tel.: +81-6-4307-4306; Fax: +81-6-6729-3577
| | - Akifumi Nagatomo
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Takahiro Oka
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Yoshinobu Miki
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Norihisa Taira
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Megumi Shibano-Kitahara
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Yuichiro Hori
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
| | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Kiyofumi Ninomiya
- Pharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan; (A.N.); (T.O.); (Y.M.); (N.T.); (M.S.-K.); (Y.H.); (O.M.); (K.N.)
- Antiaging Center, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| |
Collapse
|
7
|
Morikawa T, Xie H, Pan Y, Ninomiya K, Yuan D, Jia X, Yoshikawa M, Nakamura S, Matsuda H, Muraoka O. A Review of Biologically Active Natural Products from a Desert Plant Cistanche tubulosa. Chem Pharm Bull (Tokyo) 2019; 67:675-689. [PMID: 31257323 DOI: 10.1248/cpb.c19-00008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An Orobanchaceae plant Cistanche tubulosa (SCHENK) WIGHT (Kanka-nikujuyou in Japanese), which is one of the authorized plant resources as Cistanches Herba in both Japanese and Chinese Pharmacopoeias, is a perennial parasitic plant growing on roots of sand-fixing plants. The stems of C. tubulosa have traditionally been used for treatment of impotence, sterility, lumbago, and body weakness as well as a promoting agent of blood circulation. In recent years, Cistanches Herba has also been widely used as a health food supplement in Japan, China, and Southeast Asian countries. Here we review our recent studies on chemical constituents from the stems of C. tubulosa as well as their bioactivities such as vasorelaxtant, hepatoprotective, and glucose tolerance improving effects.
Collapse
Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kindai University.,Antiaging Center, Kindai University
| | - Haihui Xie
- Kyoto Pharmaceutical University.,South China Botanical Garden, Chinese Academy of Sciences
| | - Yingni Pan
- Pharmaceutical Research and Technology Institute, Kindai University.,School of Traditional Chinese Medicines, Shenyang Pharmaceutical University
| | - Kiyofumi Ninomiya
- Pharmaceutical Research and Technology Institute, Kindai University.,Antiaging Center, Kindai University
| | - Dan Yuan
- School of Traditional Chinese Medicines, Shenyang Pharmaceutical University
| | - Xiaoguang Jia
- Kyoto Pharmaceutical University.,Xinjiang Institute of Chinese Materia Medica and Ethnodrug
| | - Masayuki Yoshikawa
- Pharmaceutical Research and Technology Institute, Kindai University.,Kyoto Pharmaceutical University
| | | | | | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kindai University.,Antiaging Center, Kindai University
| |
Collapse
|
8
|
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.
Collapse
|
9
|
Wang YQ, Wang SS, Zhu J, Wang L, Jiang BH, Zhao WJ. Determination of urea content in urea cream by centrifugal partition chromatography. J Food Drug Anal 2016; 24:399-405. [PMID: 28911595 PMCID: PMC9339563 DOI: 10.1016/j.jfda.2015.10.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 10/13/2015] [Accepted: 10/29/2015] [Indexed: 11/30/2022] Open
Abstract
The objective of this study is to establish a centrifugal partition chromatography (CPC) method for determination of the urea ingredient in urea cream. The mechanism of this method is that urea is determined by UV detector at 430 nm after being extracted from the cream and derivatized on line via Ehrlich reaction in rotor of CPC, where the reaction products dissolve in the mobile phase and the cream matrix retains in the stationary phase. The mixed solvent consisting of n-hexane, methanol, hydrochloric acid and p-dimethylaminobenzaldehyde with a ratio of 1000 mL:1000 mL:18 mL:2.0 g is used for solvent system of CPC. The CPC method proposed offers good precision and convenience without complex sample pretreatment processes.
Collapse
|
10
|
Acylated phenylethanoid glycosides, echinacoside and acteoside from Cistanche tubulosa, improve glucose tolerance in mice. J Nat Med 2014; 68:561-6. [PMID: 24748124 DOI: 10.1007/s11418-014-0837-9] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 03/30/2014] [Indexed: 10/25/2022]
Abstract
Acylated phenylethanoid glycosides, echinacoside (1) and acteoside (2), principal constituents in stems of Cistanche tubulosa (Orobanchaceae), inhibited the increase in postprandial blood glucose levels in starch-loaded mice at doses of 250-500 mg/kg p.o. These compounds (1 and 2) also significantly improved glucose tolerance in starch-loaded mice after 2 weeks of continuous administration at doses of 125 and/or 250 mg/kg/day p.o. without producing significant changes in body weight or food intake. In addition, several constituents from C. tubulosa, including 1 (IC50 = 3.1 μM), 2 (1.2 μM), isoacteoside (3, 4.6 μM), 2'-acetylacteoside (4, 0.071 μM), tubulosides A (5, 8.8 μM) and B (9, 4.0 μM), syringalide A 3-O-α-L-rhamnopyranoside (10, 1.1 μM), campneoside I (13, 0.53 μM), and kankanoside J1 (14, 9.3 μM), demonstrated potent rat lens aldose reductase inhibitory activity. In particular, the potency of compound 4 was similar to that of epalrestat (0.072 μM), a clinical aldose reductase inhibitor.
Collapse
|
11
|
Structures of acylated sucroses from the flower buds of Prunus mume. J Nat Med 2014; 68:481-7. [PMID: 24532439 DOI: 10.1007/s11418-014-0818-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Accepted: 01/14/2014] [Indexed: 10/25/2022]
Abstract
Seven new acylated sucroses, mumeoses P-V, were isolated from the flower buds of Prunus mume, cultivated in Zhejiang province, China. Their chemical structures were elucidated on the basis of chemical and physicochemical evidence. Moreover, mumeoses C, D, and R, were shown to substantially inhibit aldose reductase.
Collapse
|
12
|
Ma C, Hu L, Fu Q, Gu X, Tao G, Wang H. Separation of four flavonoids from Rhodiola rosea by on-line combination of sample preparation and counter-current chromatography. J Chromatogr A 2013; 1306:12-9. [DOI: 10.1016/j.chroma.2013.07.052] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/09/2013] [Accepted: 07/10/2013] [Indexed: 10/26/2022]
|
13
|
Xie HH, Yoshikawa M. Further acylated flavonol bisdesmosides from Sinocrassula indica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2013; 15:885-890. [PMID: 23768076 DOI: 10.1080/10286020.2013.800973] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Further investigation on the whole herbs of Sinocrassula indica (Crassulaceae) led to the isolation of four new acylated flavonol bisdesmosides, sinocrassosides A₁₃, B₆, B₇, and D₄, together with kaempferol 3-O-β-D-(6-O-acetyl)glucopyranosyl-7-O-α-L-rhamnopyranoside. Their structures were established by spectral and chemical methods.
Collapse
Affiliation(s)
- Hai-Hui Xie
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences , Guangzhou , 510650 , China
| | | |
Collapse
|
14
|
Veeresham C, Rama Rao A, Asres K. Aldose reductase inhibitors of plant origin. Phytother Res 2013; 28:317-33. [PMID: 23674239 DOI: 10.1002/ptr.5000] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 02/01/2013] [Accepted: 03/22/2013] [Indexed: 12/17/2022]
Abstract
Diabetic complications are attributed to hyperglycaemic condition which is in turn associated with the polyol pathway and advanced glycation end products. Aldose reductase (AR) is the principal enzyme of polyol pathway which plays a vital role in the development of diabetic complications. AR inhibitory activity can be screened by both in vitro and in vivo methods. In vitro assays for AR enzyme are further classified on the basis of the source of enzyme such as rat lens, rat kidney, cataracted human eye lens, bovine eyes and human recombinant AR enzymes, whereas the in vivo model is based on the determination of lens galactitol levels. A number of synthetic AR inhibitors (ARIs) including tolrestat and sorbinil have been developed, but all of these suffer from drawbacks such as poor permeation and safety issues. Therefore, pharmaceutical companies and many researchers have been carrying out research to find new, potent and safe ARIs from natural sources. Thus, many naturally occurring compounds have been reported to have AR inhibitory activity. The present review attempts to highlight phytochemicals and plant extracts with potential AR inhibitory activity. It also summarizes the classes of compounds which have proven AR inhibitory activity. Phytochemicals such as quercetin, kaempferol and ellagic acid are found to be the most promising ARIs. The exhaustive literature presented in this article clearly indicates the role of plant extracts and phytochemicals as potential ARIs.
Collapse
Affiliation(s)
- Ciddi Veeresham
- University College of Pharmaceutical Sciences, Kakatiya University, Warangal, AP, 506009, India
| | | | | |
Collapse
|
15
|
Structures of acylated sucroses and an acylated flavonol glycoside and inhibitory effects of constituents on aldose reductase from the flower buds of Prunus mume. J Nat Med 2013; 67:799-806. [PMID: 23456234 DOI: 10.1007/s11418-013-0750-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 02/04/2013] [Indexed: 10/27/2022]
Abstract
Five new acylated sucroses, mumeoses K-O, and a new acylated flavonol glycoside, mumeflavonoside A, were isolated from the flower buds of Prunus mume, cultivated in Zhejiang province, China. The chemical structures of the new compounds were elucidated on the basis of chemical and physicochemical evidence. The inhibitory effects of the isolated acylated sucroses and flavonol glycosides on aldose reductase were also investigated. Several flavonol glycosides including mumeflavonoside A were shown to inhibit aldose reductase.
Collapse
|
16
|
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]
|
17
|
Xie HH, Yoshikawa M. Grasshopper ketone 3-O-primveroside from Sinocrassula indica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:503-507. [PMID: 22530677 DOI: 10.1080/10286020.2012.669376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A new megastigmane glycoside, grasshopper ketone 3-O-primveroside (1), was isolated from the methanolic extract of the whole herbs of Sinocrassula indica (Crassulaceae). Its structure was elucidated on the basis of spectral and chemical evidence.
Collapse
Affiliation(s)
- Hai-Hui Xie
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | | |
Collapse
|
18
|
Trendafilova A, Todorova M, Nikolova M, Gavrilova A, Vitkova A. Flavonoid Constituents and Free Radical Scavenging Activity of Alchemilla mollis. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100601216] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Antioxidant capacity of the methanolic extract of Alchemilla mollis was measured by its ability to scavenge the DPPH radical. The EtOAc fraction obtained after partition of the total extract was found to be the most active radical scavenger (IC50 9.8 ± 1.8 μg/mL) and was subjected to fractionation by Sephadex LH-20 CC. Further purification by RP-18 CC led to the isolation of eight flavonoid glycosides: cis-and trans-tiliroside (1 and 2), rhodiolgin (3), hyperoside (4), isoquercitrin (5), miquelianin (6), sinocrassoside D2 (7), and gossypetin-3- O-β-D-galactopyranosyl-7- O-α-L-rhamnopyranoside (8). It was found that 8 is a new compound and its antioxidant activity is also reported. Identification of the isolated compounds was carried out by spectroscopic and spectrometric analysis (1D and 2D NMR, UV and MS).
Collapse
Affiliation(s)
- Antoaneta Trendafilova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 9, 1113 Sofia, Bulgaria
| | - Milka Todorova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 9, 1113 Sofia, Bulgaria
| | - Milena Nikolova
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2 Gagarin Str., 1113 Sofia, Bulgaria
| | - Anna Gavrilova
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2 Gagarin Str., 1113 Sofia, Bulgaria
| | - Antonina Vitkova
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2 Gagarin Str., 1113 Sofia, Bulgaria
| |
Collapse
|
19
|
Affiliation(s)
- Nigel C Veitch
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW93AB, UK.
| | | |
Collapse
|
20
|
Morikawa T, Li X, Nishida E, Nakamura S, Ninomiya K, Matsuda H, Oda Y, Muraoka O, Yoshikawa M. Medicinal Flowers. Part 29. Acylated Oleanane-Type Triterpene Bisdesmosides: Perennisaponins G, H, I, J, K, L, and M with Pancreatic Lipase Inhibitory Activity from the Flowers ofBellis perennis. Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900258] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
21
|
Yin J, Zuberi A, Gao Z, Liu D, Liu Z, Ye J. Shilianhua extract inhibits GSK-3beta and promotes glucose metabolism. Am J Physiol Endocrinol Metab 2009; 296:E1275-80. [PMID: 19351808 PMCID: PMC2692393 DOI: 10.1152/ajpendo.00092.2009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The extract of plant Shilianhua (SLH; Sinocrassula indica Berge) is a component in a commercial product for control of blood glucose. However, it remains to be investigated whether the SLH extract enhances insulin sensitivity in a model of type 2 diabetes. To address this question, the SLH crude extract was fractionated into four parts on the basis of polarity, and bioactivities of each part were tested in cells. One of the fractions, F100, exhibited a strong activity in the stimulation of glucose consumption in vitro. Glucose consumption was induced significantly by F100 in 3T3-L1 adipocytes, L6 myotubes, and H4IIE hepatocytes in the absence of insulin. F100 also increased insulin-stimulated glucose consumption in L6 myotubes and H4IIE hepatocytes. It increased insulin-independent glucose uptake in 3T3-L1 adipocytes and insulin-dependent glucose uptake in L6 cells. The glucose transporter-1 (GLUT1) protein was induced in 3T3-L1 cells, and the GLUT4 protein was induced in L6 cells by F100. Mechanism study indicated that F100 induced GSK-3beta phosphorylation, which was comparable with that induced by insulin. Additionally, the transcriptional activity of NF-kappaB was inhibited by F100. In RAW 264.7 macrophages, mRNA expression of NF-kappaB target genes (TNFalpha and MCP-1) was suppressed by F100. In KK.Cg-A(y)/+ mice, F100 decreased fasting insulin and blood glucose and improved insulin tolerance significantly. We conclude that the F100 may be a bioactive component in the SLH plant. It promotes glucose metabolism in vitro and in vivo. Inhibition of GSK-3beta and NF-kappaB may be the potential mechanism.
Collapse
Affiliation(s)
- Jun Yin
- Pennington Biomedical Research Center, Louisiana State University System, 6400 Perkins Rd., Baton Rouge, LA 70808, USA
| | | | | | | | | | | |
Collapse
|
22
|
Matsuda H, Kiyohara S, Sugimoto S, Ando S, Nakamura S, Yoshikawa M. Bioactive constituents from Chinese natural medicines. XXXIII. Inhibitors from the seeds of Psoralea corylifolia on production of nitric oxide in lipopolysaccharide-activated macrophages. Biol Pharm Bull 2009; 32:147-9. [PMID: 19122298 DOI: 10.1248/bpb.32.147] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The methanolic extract from the seeds of Psoralea corylifolia was found to inhibit production of nitric oxide (NO) in lipopolysaccharide-activated mouse peritoneal macrophages. Among the isolated compounds, bavachinin (IC(50)=26 microM), isobavachalcone (17 microM), neobavaisoflavone (ca. 29 microM), corylifol A (ca. 21 microM), and psoralidin (ca. 23 microM) significantly inhibited the accumulation of nitrite (NO(2)(-)) as a marker of production of NO. Bakuchiol, which is mainly contained in the extract, also showed weak activity at 10 microM, but cytotoxic effects were observed more than 30 microM.
Collapse
|