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Ramadhan R, Syafrizal, Kusuma IW, Paramita S, Amen Y, Kim YU, Fatriasari W, Shimizu K, Arung ET. Cytotoxicity evaluation of phytochemicals from stingless bee (Tetragonula biroi) propolis. Toxicon 2024; 237:107352. [PMID: 38052333 DOI: 10.1016/j.toxicon.2023.107352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/06/2023] [Accepted: 11/20/2023] [Indexed: 12/07/2023]
Abstract
Three prenylated flavonoids (1-3) were isolated from Tetragonula biroi propolis. The structures of the isolated compounds were characterized by NMR, IR, and UV spectroscopic and mass spectrometric analyses. The cytotoxicity activity of the crude extracts, fractions and the isolated compounds were established against four cell lines such as Caco-2, HeLa, MCF-7, and OVK-18. Among the tested compounds, compound 1 showed cytotoxicity activity against MCF-7 cell lines, whereas compound 2 showed good activity against Caco-2 and OVK-18 cell lines with IC50 values of 14.73 and 14.44, respectively. Moreover, compound 3 exhibited strong activity against OVK-18 cell lines. These findings contribute to the phytochemical understanding of the T. biroi propolis, and their cytotoxicity effects for future pharmaceutical purposes.
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Affiliation(s)
- Rico Ramadhan
- Division of Exploration and Synthesis of Bioactive Compounds (ESBC), CoE-University Research Center for Bio-Molecule Engineering (BIOME), Universitas Airlangga, Surabaya, 60115, Indonesia; Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia
| | - Syafrizal
- Laboratory of Plant Systematic and Anatomy, Mathematics and Science Faculty, Mulawarman University, Samarinda, Indonesia
| | - Irawan Wijaya Kusuma
- Laboratory of Forest Product Chemistry, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia; Research Center for Medicine and Cosmetic from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia
| | - Swandari Paramita
- Research Center for Medicine and Cosmetic from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia; Faculty of Medicine, Mulawarman University, Samarinda, Indonesia
| | - Yhiya Amen
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Yong-Ung Kim
- Department of Pharmaceutical Engineering, Daegu Haany University, Gyeongsan, South Korea
| | - Widya Fatriasari
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Bogor, 16911, Indonesia; Research Collaboration Center for Biomass-Based Nano Cosmetic, in Collaboration Mulawarman University and BRIN, Samarinda, East Kalimantan, 75119, Indonesia
| | - Kuniyoshi Shimizu
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan; Kyushu University Institute for Asian and Oceanian Studies, Fukuoka, Japan.
| | - Enos Tangke Arung
- Laboratory of Forest Product Chemistry, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia; Research Center for Medicine and Cosmetic from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia; Research Collaboration Center for Biomass-Based Nano Cosmetic, in Collaboration Mulawarman University and BRIN, Samarinda, East Kalimantan, 75119, Indonesia.
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Arung ET, Syafrizal, Kusuma IW, Paramita S, Amen Y, Kim YU, Naibaho NM, Ramadhan R, Ariyanta HA, Fatriasari W, Shimizu K. Antioxidant, anti-inflammatory and anti-acne activities of stingless bee (Tetragonula biroi) propolis. Fitoterapia 2023; 164:105375. [PMID: 36511341 DOI: 10.1016/j.fitote.2022.105375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 11/27/2022]
Abstract
We collected stingless bee propolis Tetragonula biroi in order to find materials for medicine and cosmetics applications from tropical rainforest resources. Even though this bee has some biological functions including a cancer cell line, hair growth promotion, asthma remedy, α-glucosidase enzyme inhibition, and antiviral action, the investigation on anti-acne has not been reported yet. This study was to focus on propolis Tetragonula biroi extracts and leads us to isolate active compounds for antioxidant, anti-inflammatory, and anti-acne. We used methanol to obtain the extract from this propolis and assayed it with antioxidants, anti-inflammation, and anti-acne. The extract showed strong activity in antioxidants by DPPH radical scavenging activity (82.31% in 6.25 μg/ml). Via a column chromatography and Reveleris PREP purification system, we isolated 3'-O-methyldiplacone, nymphaeol A, and 5,7,3',4'-tetrahydroxy-6-geranyl flavonol. These compounds showed potential biological activity with IC50 for antioxidant 6.33, 15.49, 17.32 μM; and antiinflammatory 121.54, 121.20, 117.31 μM. The isolated compounds showed anti-acne properties with properties 0.00, 14.11, and 13.78 mm for the inhibition zone (at a concentration of 1 μg/well), respectively. The results indicated that the propolis extract of Tetragonula biroi has the potential to be developed as a cosmetic agent; however, further work needs to be done to clarify its application.
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Affiliation(s)
- Enos Tangke Arung
- Laboratory of Forest Product Chemistry, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia; Research Center for Medicine and Cosmetic from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia; Research Collaboration Center for Biomass-Based Nano Cosmetics, in Collaboration with Mulawarman University and BRIN, Samarinda, East Kalimantan 75119, Indonesia.
| | - Syafrizal
- Mathematics and Science Faculty, Mulawarman University, Samarinda, Indonesia
| | - Irawan Wijaya Kusuma
- Laboratory of Forest Product Chemistry, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia; Research Center for Medicine and Cosmetic from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia
| | - Swandari Paramita
- Research Center for Medicine and Cosmetic from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia; Faculty of Medicine, Mulawarman University, Samarinda, Indonesia
| | - Yhiya Amen
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Yong-Ung Kim
- Department of Pharmaceutical Engineering, Daegu Haany University, Gyeongsan, South Korea
| | - Netty Maria Naibaho
- Department of Plantation Processing Technology, State Agricultural Polytechnic of Samarinda, Jl. Samratulangi PO Box 75131, Samarinda, Indonesia
| | - Rico Ramadhan
- Division for Exploration and Synthesis of Bioactive Compounds, CoE-University Research Center for Bio-Molecule Engineering, Universitas Airlangga, Surabaya 60115, Indonesia; Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Harits Atika Ariyanta
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Bogor 16911, Indonesia; Research Collaboration Center for Biomass-Based Nano Cosmetics, in Collaboration with Mulawarman University and BRIN, Samarinda, East Kalimantan 75119, Indonesia; Department of Pharmacy, University of Gunadarma, Depok, Indonesia
| | - Widya Fatriasari
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Bogor 16911, Indonesia; Research Collaboration Center for Biomass-Based Nano Cosmetics, in Collaboration with Mulawarman University and BRIN, Samarinda, East Kalimantan 75119, Indonesia
| | - Kuniyoshi Shimizu
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan; Kyushu University Institute for Asian and Oceanian Studies, Fukuoka, Japan.
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Arung ET, Ramadhan R, Mandzilkh LD, Santoso PA, Matsumoto M, Nagata M, Kusuma IW, Paramita S, - S, - Y, Takemoto N, Amen Y, - S, Shimizu K, Tandirogang N. Screening of Selected Stingless Bee Honey Varieties for ACE2-Spike Protein-Binding Inhibition Activity: A Potential Preventive Medicine Against SARS-Cov-2 Infection. Malays J Med Sci 2022; 29:146-153. [DOI: 10.21315/mjms2022.29.5.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 09/10/2021] [Indexed: 11/05/2022] Open
Abstract
The broader objective of this study is to identify natural materials that might inhibit the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We have focused on stingless bee honey, which has a unique taste that is both sweet and sour and sometimes bitter. We screened 12 samples of honey from 11 species of stingless bees using an angiotensin-converting enzyme 2 (ACE2)-spike protein-binding assay and phytochemical analysis. Ten of the samples showed inhibition above 50% in this assay system. Most of the honey contained tannins, alkaloids, flavonoids, triterpenoids, carotenoids and carbohydrates. Our findings in this in vitro study showed that honey from stingless bees may have a potent effect against SARS-CoV-2 infection by inhibiting the ACE2-spike protein-binding.
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Aung E, Kristanti A, Aminah N, Takaya Y, Ramadhan R. Phytochemicals Constituents in Medicinal Plant Syzygium aqueum (Burm.) Alston (Myrtaceae). Egypt J Chem 2022. [DOI: 10.21608/ejchem.2022.132251.5859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Arung ET, Ramadhan R, Khairunnisa B, Amen Y, Matsumoto M, Nagata M, Kusuma IW, Paramita S, Sukemi, Yadi, Tandirogang N, Takemoto N, Syafrizal, Kim YU, Shimizu K. Cytotoxicity effect of honey, bee pollen, and propolis from seven stingless bees in some cancer cell lines. Saudi J Biol Sci 2021; 28:7182-7189. [PMID: 34867021 PMCID: PMC8626249 DOI: 10.1016/j.sjbs.2021.08.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 11/13/2022] Open
Abstract
Our effort to find new material for anti cancer from natural resources leads us to focus on stingless bee products such as honey, bee pollen, and propolis. The products were from seven stingless bees named Homotrigona fimbriata, Heterotrigona itama, Heterotrigona bakeri, Tetragonula sarawakensis, Tetragonula testaceitarsis, Tetragonula fuscobalteata, Tetragonula laeviceps. The stingless bee products were evaluated for their cytotoxicity effect on MCF-7, HeLa and Caco-2 cancer cell lines. This is the first time to be reported that the honey, ethanol extracts of bee pollen and propolis of H. fimbriata displayed more potent cytotoxicity than other stingless bee products. By chromatography and biological activity-guided fractionation, ethanol extract of propolis from H. fimbriata was fractionated and isolated its active compound named mangiferonic acid. Mangiferonic acid showed a cytotoxicity effect with IC50 values 96.76 µM in MCF-7, >110.04 µM in HeLa, and > 110.04 µM in Caco-2, respectively. These results exhibited the potential of ethanol extracts from propolis of H. fimbriata to be further developed for drug and experiments to verify the function are essential.
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Affiliation(s)
- Enos Tangke Arung
- Laboratory of Forest Product Chemistry, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia.,Research Center for Drugs and Cosmetics from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia
| | - Rico Ramadhan
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia.,Division of Exploration and Synthesis of Bioactive Compounds, Research Center for Bio-Molecule Engineering, Airlangga University, Surabaya 60115, Indonesia
| | - Binti Khairunnisa
- Laboratory of Forest Product Chemistry, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia
| | - Yhiya Amen
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.,Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Masako Matsumoto
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Maki Nagata
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Irawan Wijaya Kusuma
- Laboratory of Forest Product Chemistry, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia.,Research Center for Drugs and Cosmetics from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia
| | - Swandari Paramita
- Research Center for Drugs and Cosmetics from Tropical Rainforest Resources, Mulawarman University, Samarinda, Indonesia.,Department of Community Medicine, Faculty of Medicine, Mulawarman University, Samarinda, Indonesia
| | - Sukemi
- Chemical Education Program, Faculty of Teacher Training and Education, Mulawarman University, Samarinda, Indonesia
| | - Yadi
- Department of Microbiology, Faculty of Medicine, Mulawarman University, Samarinda, Indonesia
| | - Nataniel Tandirogang
- Department of Microbiology, Faculty of Medicine, Mulawarman University, Samarinda, Indonesia
| | - Naomichi Takemoto
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Syafrizal
- Department of Biology, Faculty of Mathematics and Science, Mulawarman University, Samarinda 75123, Indonesia
| | - Yong-Ung Kim
- Department of Pharmaceutical Engineering, College of Herbal Bio-industry, Daegu Haany University, Gyeongsangbuk-do, South Korea
| | - Kuniyoshi Shimizu
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.,Kyushu University Institute for Asian and Oceanian Studies, Fukuoka, Japan
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Haqiqi M, Bankeeree W, Lotrakul P, Pattananuwat P, Punnapayak H, Ramadhan R, Kobayashi T, Amirta R, Prasongsuk S. Antioxidant and UV-Blocking Properties of a Carboxymethyl Cellulose-Lignin Composite Film Produced from Oil Palm Empty Fruit Bunch. ACS Omega 2021; 6:9653-9666. [PMID: 33869945 PMCID: PMC8047929 DOI: 10.1021/acsomega.1c00249] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/15/2021] [Indexed: 06/01/2023]
Abstract
Oil palm empty fruit bunch (EFB) pulp with the highest cellulose content of 83.42% was obtained from an optimized process of acid pretreatment (0.5% v/v H2SO4), alkaline extraction (15% w/w NaOH), and hydrogen peroxide bleaching (10% w/v H2O2), respectively. The EFB cellulose was carboxymethylated, and the obtained carboxymethyl cellulose (CMC) was readily water-soluble (81.32%). The EFB CMC was blended with glycerol and cast into a composite film. Lignin that precipitated from the EFB black liquor was also incorporated into the film at different concentrations, and its effect on the UV-blocking properties of the film was determined. Interestingly, the EFB CMC film without lignin addition completely blocked UV-B transmittance. The incorporation of lignin at all concentrations significantly enhanced the UV-A blocking and other physical properties of the film, including the surface roughness, thickness, and thermal stability, although the tensile strength and water vapor permeability were not significantly affected. Complete UV-A and UV-B blocking were observed when lignin was added at 0.2% (w/v), and the film also exhibited the highest antioxidant activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals with an half-maximal inhibitory concentration (IC50) value of 3.87 mg mL-1.
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Affiliation(s)
- Muhammad
T. Haqiqi
- Program
in Biotechnology, Faculty of Science, Chulalongkorn
University, Bangkok 10330, Thailand
- Plant
Biomass Utilization Research Unit, Department of Botany, Faculty of
Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Wichanee Bankeeree
- Plant
Biomass Utilization Research Unit, Department of Botany, Faculty of
Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pongtharin Lotrakul
- Plant
Biomass Utilization Research Unit, Department of Botany, Faculty of
Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Prasit Pattananuwat
- Department
of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Hunsa Punnapayak
- Plant
Biomass Utilization Research Unit, Department of Botany, Faculty of
Science, Chulalongkorn University, Bangkok 10330, Thailand
- Department
of Biology, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia
| | - Rico Ramadhan
- Department
of Chemistry, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia
- Division
of Exploration and Synthesis of Bioactive Compound, Research Center
for Bio-Molecule Engineering, Airlangga
University, Surabaya 60115, Indonesia
| | - Takaomi Kobayashi
- Department
of Materials Science and Technology, Nagaoka
University of Technology, Nagaoka 940-2188, Japan
| | - Rudianto Amirta
- Faculty
of Forestry, Mulawarman University, Samarinda 75124, Indonesia
| | - Sehanat Prasongsuk
- Plant
Biomass Utilization Research Unit, Department of Botany, Faculty of
Science, Chulalongkorn University, Bangkok 10330, Thailand
- Department
of Biology, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia
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Aung EE, Kristanti AN, Aminah NS, Takaya Y, Ramadhan R. Plant description, phytochemical constituents and bioactivities of Syzygium genus: A review. OPEN CHEM 2020. [DOI: 10.1515/chem-2020-0175] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis article attempts to report native growth, plant description, phytochemical constituents and bioactivities of Syzygium aqueum, S. aromaticum, S. cumini, S. guineense and S. samarangense. Those are the large public species in the Syzygium genus and some of them have been used as traditional medicines. Different parts (leaves, seeds, fruits, barks, stem barks and flower buds) of each species plant are rich in phytochemical constituents such as flavonoids, terpenoids, tannins, glycosides and phenolics. Antioxidant, antidiabetic, anticancer, toxicity, antimicrobial, anti-inflammatory and anthelmintic activities are reported in various extracts (methanol, ethanol and aqueous) from different parts of Syzygium sp. The bioactivities were studied by using 1,1-diphenyl-2-picrylhydrazyl and ferric reducing antioxidant power assays for antioxidant, 5-(3-carboxymethoxyphenyl)-2-(4,5-dimethyl-thiazoly)-3-(4-sulfophenyl) tetrazolium and 3-(4,5-dimethylthiazol-2-yl)-2-5-diphenyltetrazolium bromide assays for anticancer, α-glucosidase and α-amylase inhibition assays for antidiabetic, agar well diffusion method for antimicrobial and brine shrimp lethality assay for toxicity. Moreover, this review shows that phytochemical constituents of each species significantly presented various bioactivities. Therefore, this review suggests that there is great potential for obtaining the lead drug from these species.
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Affiliation(s)
- Ei Ei Aung
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jl. Mulyorejo, Surabaya, 60115, Indonesia
- Department of Chemistry, Yadanarbon University, Amarapura Township, Mandalay, Myanmar
| | - Alfinda Novi Kristanti
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Nanik Siti Aminah
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - Yoshiaki Takaya
- Faculty of Pharmacy, Meijo University, Tempaku, Nagoya, Japan
| | - Rico Ramadhan
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jl. Mulyorejo, Surabaya, 60115, Indonesia
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Tun KNW, Aminah NS, Kristanti AN, Ramadhan R, Takaya Y. Cytotoxic Prenyl and Geranyl Coumarins from the Stem Bark of Casimiroa edulis. LETT ORG CHEM 2020. [DOI: 10.2174/1570178616666191019121437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phytochemical investigation of the methanolic extract of the stem bark of Casimiroa edulis
afforded four coumarins. Various spectroscopic experiments were used to characterize the isolated
coumarins. The structures were identified as auraptene (K-1), suberosin (K-2), 5-geranyloxypsoralen
(bergamottin) (K-3), and 8-geranyloxypsoralen (K-4), based on the chemical and spectral analysis.
Among these compounds, suberosin (K-2) and 5-geranyloxypsoralen (bergamottin) (K-3) were isolated
for the first time from this genus, and auraptene (K-1) was isolated from this plant for the first time.
Cytotoxicity of pure compound K-4 and sub-fraction MD-3 was evaluated against HeLa and T47D cell
lines and moderate activity was found with an IC50 value in the range 17.4 to 72.33 μg/mL.
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Affiliation(s)
- Khun Nay Win Tun
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
| | - Nanik Siti Aminah
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
| | - Alfinda Novi Kristanti
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
| | - Rico Ramadhan
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
| | - Yoshiaki Takaya
- Faculty of Pharmacy, Universitas Meijo, 150 Yagotoyama, Tempaku, Nagoya, 468-8503, Japan
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Abstract
AbstractNew derivatives were obtained from natural nordentatin (1) previously isolated from the methanol fraction of Clausena excavata by an acylation method. Herein, we report ten new pyranocoumarin derivatives 1a–1j. Their structures were elucidated based on UV-vis, FT-IR, NMR, and DART-MS data. The α-glucosidase inhibition and anticancer activities of nordentatin (1) and its derivatives were also evaluated. The α-glucosidase inhibition assay exhibited that the derivatives 1b, 1d, 1e, 1f, 1h, 1i, and 1j possess higher inhibitory activity for α-glucosidase with IC50 values of 1.54, 9.05, 4.87, 20.25, 12.34, 5.67, and 2.43 mM, whereas acarbose was used as the positive control, IC50 = 7.57 mM. All derivatives exhibited a weak cytotoxicity against a cervical cancer (HeLa) cell line with the IC50 between 0.25 and 1.25 mM. They also showed moderate to low growth inhibition of a breast cancer (T47D) cell line with IC50 values between 0.043 and 1.5 mM, but their activity was lower than that of the parent compound, nordentatin (1) (IC50 = 0.041 mM).
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Affiliation(s)
- Tin Myo Thant
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
- Department of Chemistry, Mandalar Degree College, Mandalay, Myanmar
| | - Nanik Siti Aminah
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | - Alfinda Novi Kristanti
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | - Rico Ramadhan
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | | | - Yoshiaki Takaya
- Department of Pharmacy, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya, 468-8503, Japan
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Abstract
The genus Micromelum belongs to the Rutaceae family. As its rich bioactive constituents its stems, flowers, leaves, and roots have been used in traditional medicine, for the treatment of various diseases from ancient time. Phytochemically, many bioactive compounds, including coumarins, polyoxygenated flavonoids, phenylpropanoic acid derivatives, quinolone alkaloids, and also carbazole alkaloids, have been reported as secondary metabolites of the Micromelum spp. including many new compounds. Therefore, Micromelum spp. are considered potential for drug leads. In this article, we present an overview of secondary metabolites isolated from genus Micromelum and their bioactivities that have been reported between 1982 and 2019.
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Affiliation(s)
- Tin Myo Thant
- Dept of Chemistry, Fac of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
- Department of Chemistry, Mandalar Degree College, Mandalay, Myanmar
| | - Nanik Siti Aminah
- Dept of Chemistry, Fac of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | - Alfinda Novi Kristanti
- Dept of Chemistry, Fac of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | - Rico Ramadhan
- Dept of Chemistry, Fac of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | | | - Yoshiaki Takaya
- Faculty of Pharmacy, Meijo University, Yagotoyama, Tempaku, Nagoya, Japan
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11
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Aminah NS, Thant TM, Kristanti AN, Ramadhan R, Aung HT, Takaya Y. Carbazomarin: A New Potential of α-Glucosidase Inhibitor From Clausena excavata Roots. Nat Prod Commun 2020. [DOI: 10.1177/1934578x19894076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Continuing our exploration for dual functions antidiabetic and antioxidant agents from Myanmar medicinal plant , a new carbazole-pyranocoumarin conjugate, carbazomarin-C (1) along with a known carbazole alkaloid, mukonine (2) and a pyranocoumarin, xanthoxyletin (3), was isolated from the roots of Clausena excavata. The chemical structures of these compounds were identified using a combination of spectroscopic methods. Among isolates, there was a strong inhibition of compounds (1) and (3) on yeast α-glucosidase in a dose-dependent manner. It was shown when p-nitrophenyl-α-d-glucopyranoside was used as a substrate in vitro with IC50 values 0.22 and 4.81 mM, respectively. However, all isolated compounds displayed no inhibition against DPPH (2,2-diphenyl-1-picrylhydrazyl) radicals.
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Affiliation(s)
- Nanik S. Aminah
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | - Tin M. Thant
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
- Department of Chemistry, Mandalar Degree College, Mandalay, Myanmar
| | - Alfinda N. Kristanti
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | - Rico Ramadhan
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, Indonesia
| | - Hnin T. Aung
- Department of Chemistry, Mandalay University, Myanmar
| | - Yoshiaki Takaya
- Faculty of Pharmacy, Meijo University, Tempaku, Nagoya, Japan
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12
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Thant TM, Aminah NS, Kristanti AN, Ramadhan R, Phuwapraisirisan P, Takaya Y. A new pyrano coumarin from Clausena excavata roots displaying dual inhibition against α-glucosidase and free radical. Nat Prod Res 2019; 35:556-561. [PMID: 30908081 DOI: 10.1080/14786419.2019.1586696] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A new pyrano coumarin, identified as excavatin A (1) together with two known compounds nordentatin (2) and binorpocitrin (3) was isolated from the 95% EtOH extract of Clausena excavata. All structures were elucidated by using spectroscopy methods such as extensive NMR and HR-FAB-MS spectrometry. All the isolated compounds were tested on antidiabetes activity by using α-glucosidase inhibition assay and the antioxidant activity by DPPH assay. Compounds 1-3 showed antioxidant activity with IC50 values 0.286, 0.02, 0.278 mM. Among them, 2 exhibited inhibition activity against maltase (IC50 5.45 µM) and sucrase (IC50 43.57 µM). However, compounds (1) and (3) displayed inhibition on yeast α-glucosidase with IC50 values 1.92 and 5.58 mM.[Figure: see text].
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Affiliation(s)
- Tin Myo Thant
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl, Mulyorejo, Surabaya, Indonesia.,Department of Chemistry, Kyaukse University, Kyaukse Township, Myanmar
| | - Nanik Siti Aminah
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl, Mulyorejo, Surabaya, Indonesia
| | - Alfinda Novi Kristanti
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl, Mulyorejo, Surabaya, Indonesia
| | - Rico Ramadhan
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl, Mulyorejo, Surabaya, Indonesia
| | - Preecha Phuwapraisirisan
- Center of Excellence in Natural Products, Department of Chemistry, Faculty of Science, Chulalongkorn University, Thailand
| | - Yoshiaki Takaya
- Faculty of Pharmacy, Meijo University, Tempaku, Nagoya, Japan
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Potipiranun T, Adisakwattana S, Worawalai W, Ramadhan R, Phuwapraisirisan P. Identification of Pinocembrin as an Anti-Glycation Agent and α-Glucosidase Inhibitor from Fingerroot ( Boesenbergia rotunda): The Tentative Structure⁻Activity Relationship towards MG-Trapping Activity. Molecules 2018; 23:molecules23123365. [PMID: 30572593 PMCID: PMC6321453 DOI: 10.3390/molecules23123365] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/12/2018] [Accepted: 12/15/2018] [Indexed: 12/12/2022] Open
Abstract
Diabetes mellitus (DM) is a disease that is caused by a malfunction of carbohydrate metabolism, which plays an important role in the development of long-term diabetic complications. The excess glucose can be transformed to methylglyoxal (MG), a potential precursor of glycation. Glycation is a spontaneous non-enzymatic reaction that initially yields advanced glycation end-products (AGEs), which ultimately triggers several severe complications. Therefore, the inhibition of AGEs formation is the imperative approach for alleviating diabetic complications. The aim of this research was to investigate the glycation and α-glucosidase inhibitory abilities of compounds isolated from fingerroot. The dichloromethane extract afforded three flavanones, two chalcones, two dihydrochalcones, and one kavalactone. Most of the isolated compounds showed higher inhibition effect against AGEs formation than aminoguanidine (AG). Subsequent evaluation in MG-trapping assay indicated that their trapping potency was relatively comparable to AG. Their structure-activity relationships (SAR) of MG-trapping activity were investigated using the comparison of the structures of flavonoids. In addition, pinocembrin displayed moderate α-glucosidase inhibition against both maltase and sucrose, with IC50 values of 0.35 ± 0.021 and 0.39 ± 0.020 mM, respectively.
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Affiliation(s)
- Thammatee Potipiranun
- Program of Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
- Center of Excellence in Natural Products, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Sirichai Adisakwattana
- Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Wisuttaya Worawalai
- Center of Excellence in Natural Products, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Rico Ramadhan
- Center of Excellence in Natural Products, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia.
| | - Preecha Phuwapraisirisan
- Center of Excellence in Natural Products, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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Affiliation(s)
- Rico Ramadhan
- Department of Chemistry, Faculty of Science, Center of Excellence in Natural Products, Chulalongkorn University, Bangkok, Thailand
- Department of Chemistry, Faculty of Science and Technology, Airlangga University, Surabaya, Indonesia
| | - Wisuttaya Worawalai
- Department of Chemistry, Faculty of Science, Center of Excellence in Natural Products, Chulalongkorn University, Bangkok, Thailand
| | - Preecha Phuwapraisirisan
- Department of Chemistry, Faculty of Science, Center of Excellence in Natural Products, Chulalongkorn University, Bangkok, Thailand
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15
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Agustina J, Sinulingga D, Suzanna E, Tehuteru E, Ramadhan R, Kadir A. Epidemiology of Childhood Cancer in Indonesia: Study of 14 Population Based Cancer Registries. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.75200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Childhood cancer was about 3%-5% cases of all cases. Dharmais National Cancer Hospital was pointed out by Ministry of Health as National Quality Control of Cancer Burden Data in 2016. To provide national cancer burden data, Ministry of Health established 14 population based cancer registries in 2016, located in 14 provinces in Indonesia. The coverage area was 26 districts/municipalities in each selected provinces with total coverage number of population was 14% of Indonesia. Aim: This study was to describe quality data of 14 population based cancer registries in Indonesia and to describe the epidemiology of childhood cancer during 2008-2012. Methods: We used 14 population based cancer registries data that collected in Office of National Quality Control of Cancer Burden Data, Dharmais National Cancer Center, within age 0-19 years old during 2008-2012. We analyzed quality data of 14 population based cancer registries data based on WHO-IARC rules for cancer registry data. Results: There were 4156 cases. The average of percentage microscopic verification was 59%, 7 out of 7 provinces had lower percentage of microscopic verification. The highest was South Sulawesi (98%) followed by Central Java (92.9%), and East Borneo (79.4%). Most of them had over 25% of DCO. DKI Jakarta had the highest incidence age-standardized rate (7.1) followed by Bali (4.9) and North Sulawesi (4.8). The most frequent childhood cancer cases were in male (57%), between 10-14 years old. Both in male and female had similar rank of the most frequent cases, other malignant epithelial (22.4%: 17.2%), leukemia (19.3%: 14.3%), and other and unspecified malignant tumor (9.4%: 8.4%). Conclusion: The coverage and quality data of childhood cancer in 14 population based cancer registries data were low. Each population based cancer registries should improve the process of cancer registration.
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Affiliation(s)
- J. Agustina
- Dharmais National Cancer Center, Cancer Registry Division, Jakarta Barat, Indonesia
| | - D.T. Sinulingga
- Dharmais National Cancer Center, Cancer Registry Division, Jakarta Barat, Indonesia
| | - E. Suzanna
- Dharmais National Cancer Center, Cancer Registry Division, Jakarta Barat, Indonesia
| | - E. Tehuteru
- Dharmais National Cancer Center, Cancer Registry Division, Jakarta Barat, Indonesia
| | - R. Ramadhan
- Dharmais National Cancer Center, Cancer Registry Division, Jakarta Barat, Indonesia
| | - A. Kadir
- Dharmais National Cancer Center, Cancer Registry Division, Jakarta Barat, Indonesia
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Agustina J, Sinulingga D, Suzanna E, Andinata B, Ramadhan R, Kadir A. Epidemiology of Female Breast Cancer in West Jakarta, Indonesia. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.63300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Breast cancer was the most common cancer in the world. GLOBOCAN 2012 estimated the incidence of female breast cancer in Indonesia was 40.3 per 100,000 and the mortality rate was 16.6 per 100,000. In 2016, Dharmais National Cancer Center was appointed as Regional Population Based Cancer Registry in West Jakarta. West Jakarta was a municipality with 2,281,945 populations, being the 2nd largest population in DKI Jakarta Province. Aim: This study was to evaluate the quality of population based cancer registry data and to describe the epidemiology of female breast cancer in West Jakarta, Indonesia during 2008-2012 and to compare with GLOBOCAN 2012 . Methods: We used population based cancer registry data with ICD - O code C50.0-C50.9 in female who live in West Jakarta. The population based cancer registry data were collected in Dharmais National Cancer Center. We evaluated the quality of population based cancer registry data based on WHO-IARC rules for cancer registry data. Results: The quality of population based cancer registry data were microscopic verification (70%); DCO percentage (20.8%), and unknown age (0%). The trend of female breast cancer was increasing during 2008-2012. Age-standardized rate incidence was 19.3 per 100,000. The most of frequent were in 45-49 years old, not other specific location subtopography (81.5%), the histopathology type was ductal and lobular neoplasm (51.8%), in stage III (44%), and with metastases to bone (34%). The average of length of duration was 29.1 months, most of them were unknown of last status contact (84%). Conclusion: The coverage and quality data of West Jakarta population based cancer registry need to be increased and establish a follow-up system to decrease the unknown last contact status of patients.
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Affiliation(s)
- J. Agustina
- Dharmais National Cancer Center, Research and Development Department, Jakarta Barat, Indonesia
| | - D. Sinulingga
- Dharmais National Cancer Center, Research and Development Department, Jakarta Barat, Indonesia
| | - E. Suzanna
- Dharmais National Cancer Center, Research and Development Department, Jakarta Barat, Indonesia
| | - B. Andinata
- Dharmais National Cancer Center, Research and Development Department, Jakarta Barat, Indonesia
| | - R. Ramadhan
- Dharmais National Cancer Center, Research and Development Department, Jakarta Barat, Indonesia
| | - A. Kadir
- Dharmais National Cancer Center, Research and Development Department, Jakarta Barat, Indonesia
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Ramadhan R, Kusuma IW, Amirta R, Worawalai W, Phuwapraisirisan P. A new 4-arylflavan from the pericarps of Horsfieldia motleyi displaying dual inhibition against α-glucosidase and free radicals. Nat Prod Res 2017; 32:2676-2682. [DOI: 10.1080/14786419.2017.1378204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rico Ramadhan
- Natural Products Research Unit, Faculty of Science, Department of Chemistry, Chulalongkorn University, Bangkok, Thailand
- Forest Products Chemistry Laboratory, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia
- Industrial Biotechnology Laboratory, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia
| | - Irawan Wijaya Kusuma
- Forest Products Chemistry Laboratory, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia
| | - Rudianto Amirta
- Industrial Biotechnology Laboratory, Faculty of Forestry, Mulawarman University, Samarinda, Indonesia
| | - Wisuttaya Worawalai
- Natural Products Research Unit, Faculty of Science, Department of Chemistry, Chulalongkorn University, Bangkok, Thailand
| | - Preecha Phuwapraisirisan
- Natural Products Research Unit, Faculty of Science, Department of Chemistry, Chulalongkorn University, Bangkok, Thailand
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18
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Ramadhan R, Phuwapraisirisan P. New arylalkanones from Horsfieldia macrobotrys, effective antidiabetic agents concomitantly inhibiting α-glucosidase and free radicals. Bioorg Med Chem Lett 2015; 25:4529-33. [DOI: 10.1016/j.bmcl.2015.08.069] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/19/2015] [Accepted: 08/26/2015] [Indexed: 12/20/2022]
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Ramadhan R, Phuwapraisirisan P. Arylalkanones from Horsfieldia macrobotrys are Effective Antidiabetic Agents Achieved by α-Glucosidase Inhibition and Radical Scavenging. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Horsfielda macrobotrys Merr has long been used by Dayak people in East Kalimantan of Indonesia, for diabetes therapy. Inspired by ethnopharmacological use and promising α-glucosidase and radical scavenging activities, an attempt to identify the active components was carried out. Bioassay-guided isolation yielded two related arylalkanones named 1-(2,4,6-trihydroxyphenyl)-9-phenylnonan-1-one (1) and malabaricone A (2). Arylalkanone 1 showed potent radical scavenging comparable with that of the standard antioxidant, ascorbic acid, and promising inhibition against α-glucosidases. Noticeably, arylalkanone 1 was 3-30 times more potent than malabaricone A (2) in all bioassays examined, thus suggesting the critical role in exerting bioactivities of the hydroxy group on the aryl moiety. This hypothesis was also supported by reduction in inhibitory effects of the methyl ether analogues 1a and 2a. Arylalkanone 1 inhibited yeast α-glucosidase in a mixed-type manner in which the noncompetitive pathway was dominant over competitive inhibition. This study is the first report of α-glucosidase inhibition of arylalkenone-type compounds and the first phytochemicals from H. macrobotrys.
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Affiliation(s)
- Rico Ramadhan
- Program of Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- International Excellent Program, Mulawarman University, Samarinda 75119, East Kalimantan, Indonesia
| | - Preecha Phuwapraisirisan
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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20
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Ramadhan R, Phuwapraisirisan P. Arylalkanones from Horsfieldia macrobotrys are effective antidiabetic agents achieved by α-glucosidase inhibition and radical scavenging. Nat Prod Commun 2015; 10:325-328. [PMID: 25920275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
Horsfieldia macrobotrys Merr has long been used by Dayak people in East Kalimantan of Indonesia, for diabetes therapy. Inspired by ethnopharmacological use and promising α-glucosidase and radical scavenging activities, an attempt to identify the active components was carried out. Bioassay-guided isolation yielded two related arylalkanones named 1-(2,4,6-trihydroxyphenyl)-9-phenylnonan-1-one (1) and malabaricone A (2). Arylalkanone 1 showed potent radical scavenging comparable with that of the standard antioxidant, ascorbic acid, and promising inhibition against α-glucosidases. Noticeably, arylalkanone 1 was 3-30 times more potent than malabaricone A (2) in all bioassays examined, thus suggesting the critical role in exerting bioactivities of the hydroxy group on the aryl moiety. This hypothesis was also supported by reduction in inhibitory effects of the methyl ether analogues la and 2a. Arylalkanone 1 inhibited yeast α-glucosidase in a mixed-type manner in which the noncompetitive pathway was dominant over competitive inhibition. This study is the first report of α-glucosidase inhibition of arylalkenone-type compounds and the first phytochemicals from H. macrobotrys.
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21
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Al-Owain M, Wakil S, Shareef F, Al-Fatani A, Hamadah E, Haider M, Al-Hindi H, Awaji A, Khalifa O, Baz B, Ramadhan R, Meyer B. Novel homozygous mutation in DSP causing skin fragility-woolly hair syndrome: report of a large family and review of the desmoplakin-related phenotypes. Clin Genet 2010; 80:50-8. [PMID: 20738328 DOI: 10.1111/j.1399-0004.2010.01518.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Desmoplakin is an important cytoskeletal linker for the function of the desmosomes. Linking desmoplakin to certain types of cardiocutaneous syndromes has been a hot topic recently. Skin fragility-woolly hair syndrome is a rare autosomal recessive disorder involving the desmosomes and is caused by mutation in the desmoplakin gene (DSP). We report five members from a large family with skin fragility-woolly hair syndrome. The index is a 14-year-old girl with palmoplantar keratoderma, woolly hair, variable alopecia, dystrophic nails, and excessive blistering to trivial mechanical trauma. No cardiac symptoms were reported. Although formal cardiac examination was not feasible, the echocardiographic evaluation of the other two affected younger siblings was normal. Homozygosity mapping and linkage analysis revealed a high LOD score region in the short arm of chromosome 6 that harbors the DSP. Full sequencing of the DSP showed a novel homozygous c.7097 G>A (p.R2366H) mutation in all affected members, and the parents were heterozygous. This is the report of the third case/family of the skin fragility-woolly hair syndrome in the literature. We also present a clinical and molecular review of various desmoplakin-related phenotypes, with emphasis on onset of cardiomyopathy. The complexity of the desmoplakin and its variable presentations warrant introducing the term 'desmoplakinopathies' to describe all the phenotypes related to defects in the desmoplakin.
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Affiliation(s)
- M Al-Owain
- Department of Medical Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
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