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Lea CS, Simhadri C, Bradbury SG, Wulff JE, Constabel CP. Efficient purification of the diarylheptanoid oregonin from red alder (Alnus rubra) leaves and bark combining aqueous extraction, spray drying and flash-chromatography. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:554-561. [PMID: 33094496 DOI: 10.1002/pca.3005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION The diarylheptanoid xyloside oregonin ((5S)-1,7-bis(3,4-dihydroxyphenyl)-5-(β-d-xylopyranosyloxy)-heptan-3-one) has significant medicinal potential and is found at high concentration in leaves and bark of red alder (Alnus rubra). OBJECTIVES To establish inexpensive and easily scaled methods for the extraction and purification of oregonin from timber by-products. METHODS We developed a method combining aqueous extraction with spray drying of red alder extract into a powder, thus reducing the need for organic solvents used in traditional Soxhlet extraction or in solvent partitioning. Flash chromatography was utilised to purify oregonin from crude spray-dried alder extract. RESULTS Crude spray-dried alder extract was comprised of an average of 9% of the diarylheptanoid compound oregonin. Less than 10% thermal degradation of oregonin was observed using extraction temperatures between 25°C and 50°C, followed by spray drying. The structure of purified oregonin was validated using high-performance liquid chromatography (HPLC), mass spectrometry (MS), ultraviolet spectroscopy (UV), and nuclear magnetic resonance (NMR). CONCLUSION The developed method was robust, repeatable, and yielded purified oregonin of greater than > 95% purity (average of 95.8%). Our analysis represents the most complete NMR characterisation of oregonin reported to date.
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Affiliation(s)
- Carmen S Lea
- Department of Biology and Centre for Forest Biology, University of Victoria, Victoria, B.C., Canada
- Ecosafe Natural Products Inc, Saanichton, B.C, Canada
| | | | | | - Jeremy E Wulff
- Department of Chemistry, University of Victoria, Victoria, B.C, Canada
| | - C Peter Constabel
- Department of Biology and Centre for Forest Biology, University of Victoria, Victoria, B.C., Canada
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Seonu SY, Kim MJ, Yin J, Lee MW. Alnus sibirica Compounds Exhibiting Anti-Proliferative, Apoptosis-Inducing, and GSTP1 Demethylating Effects on Prostate Cancer Cells. Molecules 2021; 26:molecules26133830. [PMID: 34201712 PMCID: PMC8270241 DOI: 10.3390/molecules26133830] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/03/2021] [Accepted: 06/15/2021] [Indexed: 01/01/2023] Open
Abstract
Alnus sibirica (AS) is distributed in Korea, Japan, China, and Russia and has reported anti-oxidant, anti-inflammatory, and reducing activities on atopic dermatitis-like skin lesions, along with other beneficial health properties. In the present study, we tried to prove the cancer-preventive activity against prostate cancer. The extracted and isolated compounds, oregonin (1), hirsutenone (2), and hirsutanonol (3), which were isolated from AS, were tested for anti-proliferative activity. To do this, we used the MTT assay; NF-κB inhibitory activity, using Western blotting; apoptosis-inducing activity using flow cytometry; DNA methylation activity, using methylation-specific polymerase chain reaction in androgen-dependent (LNCaP) and androgen-independent (PC-3) prostate cancer cell lines. The compounds (1–3) showed potent anti-proliferative activity against both prostate cancer cell lines. Hirsutenone (2) exhibited the strongest NF-κB inhibitory and apoptosis-inducing activities compared with oregonin (1) and hirsutanonol (3). DNA methylation activity, which was assessed for hirsutenone (2), revealed a concentration-dependent enhancement of the unmethylated DNA content and a reduction in the methylated DNA content in both PC-3 and LNCaP cells. Overall, these findings suggest that hirsutenone (2), when isolated from AS, may be a potential agent for preventing the development or progression of prostate cancer.
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Affiliation(s)
| | | | | | - Min-Won Lee
- Correspondence: ; Tel.: +82-2-820-5602; Fax: +82-2-822-7338
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Anti-Inflammatory Effects of Alnus Sibirica Extract on In Vitro and In Vivo Models. Molecules 2020; 25:molecules25061418. [PMID: 32244969 PMCID: PMC7145316 DOI: 10.3390/molecules25061418] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 12/24/2022] Open
Abstract
Alnus sibirica extracts (ASex) have long been used in Oriental medicine to treat various conditions. To provide a scientific basis for this application and the underlying mechanism, we investigated the anti-inflammatory effects of ASex in vitro and in vivo. The in vitro model was established using human dermal fibroblasts (HDFs) treated with inflammatory stimulants (lipopolysaccharide, tumor necrosis factor-alpha, interferon-gamma). Lactate dehydrogenase and reverse transcription-polymerase chain reaction showed that ASex inhibited the increased expression of acute-phase inflammatory cytokines. The in vivo model was established by inducing skin inflammation in NC/Nga mice via the repeated application of house dust mite (HDM) ointment to the ears and back of the mice for eight weeks. HDM application increased the severity of skin lesions, eosinophil/mast cell infiltration, and serum immunoglobulin E levels, which were all significantly decreased by ASex treatment, demonstrating the same degree of protection as hydrocortisone. Overall, ASex showed excellent anti-inflammatory effects both in vitro and in vivo, suggesting its potential as an excellent candidate drug to reduce skin inflammation.
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Alnus Sibirica Extracts Suppress the Expression of Inflammatory Cytokines Induced by Lipopolysaccharides, Tumor Necrosis Factor-α, and Interferon-γ in Human Dermal Fibroblasts. Molecules 2019; 24:molecules24162883. [PMID: 31398908 PMCID: PMC6720580 DOI: 10.3390/molecules24162883] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 11/16/2022] Open
Abstract
The effects of Alnus sibirica (AS) extracts on cytokine expression induced by inflammatory stimulants were examined in human dermal fibroblasts (HDFs) and RAW264.7 cells. The anti-oxidative effect and effect on cell viability of AS extracts were evaluated, and four extracts with the highest anti-oxidative effects were selected. HDFs and RAW264.7 cells were treated with inflammatory stimulants, and the expression of cytokines involved in acute (IL-6 and IL-10) and chronic (IL-18) inflammation, the initiation of the immune response (IL-33), and non-specific immune responses (IL-1β, IL-8, and TNF-α) were determined using a reverse-transcription polymerase chain reaction. LPS increased the expression of all the cytokines, except for IL-18; however, AS extracts, particularly AS2 and AS4, reduced this increase, and TNF-α treatment markedly increased the expression of cytokines related to non-specific immune responses. IFN-γ treatment induced no significant changes, except for increased IL-33 expression in HDFs. AS extracts inhibited the increase in the expression of IL-33 and other cytokines in HDFs. Thus, the exposure of HDFs and RAW264.7 cells to inflammatory stimulants increased the expression of cytokines related to all the inflammatory processes. HDFs are involved not only in simple tissue regeneration but also in inflammatory reactions in the skin. AS2 and AS4 may offer effective therapy for related conditions.
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Le TT, Yin J, Lee M. Anti-Inflammatory and Anti-Oxidative Activities of Phenolic Compounds from Alnus sibirica Stems Fermented by Lactobacillus plantarum subsp. argentoratensis. Molecules 2017; 22:molecules22091566. [PMID: 28927000 PMCID: PMC6151828 DOI: 10.3390/molecules22091566] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/13/2017] [Accepted: 09/15/2017] [Indexed: 12/02/2022] Open
Abstract
Fermentation of Alnus sibirica (AS) stems using Lactobacillus plantarum subsp. argentoratensis was conducted and three compounds isolated from the Alnus species were identified for the first time, 7-(3,4-dihydroxyphenyl)-1-(4-hydroxyphenyl)-heptan-3-one, 1-(3,4-dihydroxyphenyl)-7-(4-hydroxyphenyl)-heptan-3-one and 4-(3,4-dihydroxyphenyl)-butan-2-one, along with 14 known compounds. The anti-oxidative and anti-inflammatory abilities of AS and fermented AS (FAS) as well as the isolated phenolic compounds from FAS were investigated. FAS showed stronger anti-oxidative and anti-inflammatory activities than non-fermented AS.
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Affiliation(s)
- Thi Tam Le
- Laboratory of Pharmacognosy and Natural Product based Medicine, College of Pharmacy, Chung-Ang University, Seoul 156-756, Korea.
| | - Jun Yin
- Laboratory of Pharmacognosy and Natural Product based Medicine, College of Pharmacy, Chung-Ang University, Seoul 156-756, Korea.
| | - MinWon Lee
- Laboratory of Pharmacognosy and Natural Product based Medicine, College of Pharmacy, Chung-Ang University, Seoul 156-756, Korea.
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Saxena A, Yadav D, Mohanty S, Cheema HS, Gupta MM, Darokar MP, Bawankule DU. Diarylheptanoids Rich Fraction of Alnus nepalensis Attenuates Malaria Pathogenesis: In-vitro and In-vivo Study. Phytother Res 2016; 30:940-8. [PMID: 26969854 DOI: 10.1002/ptr.5596] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/21/2016] [Accepted: 01/30/2016] [Indexed: 11/11/2022]
Abstract
Diarylheptanoids from Alnus nepalensis leaves have been reported for promising activity against filariasis, a mosquito-borne disease, and this has prompted us to investigate its anti-malarial and safety profile using in-vitro and in-vivo bioassays. A. nepalensis leaf extracts were tested in-vitro against chloroquine-sensitive Plasmodium falciparum NF54 by measuring the parasite specific lactate dehydrogenase activity. Among all, the chloroform extract (ANC) has shown promising anti-plasmodial activity (IC50 8.06 ± 0.26 µg/mL). HPLC analysis of ANC showed the presence of diarylheptanoids. Efficacy and safety of ANC were further validated in in-vivo system using Plasmodium berghei-induced malaria model and acute oral toxicity in mice. Malaria was induced by intra-peritoneal injection of P. berghei infected red blood cells to the female Balb/c mice. ANC was administered orally at doses of 100 and 300 mg/kg/day following Peter's 4 day suppression test. Oral administration of ANC showed significant reduction of parasitaemia and increase in mean survival time. It also attributed to inhibition of the parasite induced pro-inflammatory cytokines as well as afford to significant increase in the blood glucose and haemoglobin level when compared with vehicle-treated infected mice. In-vivo safety evaluation study revealed that ANC is non-toxic at higher concentration. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Archana Saxena
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Deepti Yadav
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Shilpa Mohanty
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Harveer Singh Cheema
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Madan M Gupta
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Mahendra P Darokar
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Dnyaneshwar U Bawankule
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
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Saxena A, Yadav D, Maurya AK, Kumar A, Mohanty S, Gupta MM, Lingaraju MC, Yatoo MI, Thakur US, Bawankule DU. Diarylheptanoids from Alnus nepalensis attenuates LPS-induced inflammation in macrophages and endotoxic shock in mice. Int Immunopharmacol 2015; 30:129-136. [PMID: 26679675 DOI: 10.1016/j.intimp.2015.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 11/06/2015] [Accepted: 12/01/2015] [Indexed: 12/15/2022]
Abstract
Diarylheptanoids, a group of plant secondary metabolites are increasingly recognized as potential therapeutic agents. The aim of study was to ascertain the anti-inflammatory profile of diarylheptanoids from Alnus nepalensis against lipopolysaccharide (LPS)-induced inflammation in macrophages and endotoxic shock in mice. Extracts prepared from dried leaves of A. nepalensis using standard solvents were tested against LPS-induced inflammation in macrophages. Among all, butanol extract (ANB) has shown most significant inhibition of pro-inflammatory cytokines without any cytotoxicity. HPLC analysis of ANB showed the presence of diarylheptanoids. The diarylheptanoids were further isolated and tested in-vitro for anti-inflammatory activity. Treatment of isolated diarylheptanoids (HOG, ORE and PLS) was able to reduce the production and mRNA level of pro-inflammatory cytokines (TNF-α and IL-6). Furthermore, we demonstrated that it inhibited the expression of NF-kB protein in LPS-induced inflammation in macrophages. In-vivo efficacy and safety profile of ANB revealed that oral treatment of ANB was able to improve the survival rate, and inhibited the production of pro-inflammatory cytokines in serum, attenuated vital organ injury in a dose dependent manner without any toxic effect at higher dose in mice. The results suggest that diarylheptanoids from A. nepalensis can be considered as potential therapeutic candidates for the management of inflammation related diseases.
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Affiliation(s)
- Archana Saxena
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Deepti Yadav
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Anil K Maurya
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Anant Kumar
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Shilpa Mohanty
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Madan M Gupta
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Madhu C Lingaraju
- Department of Pharmacology, Indian Veterinary Research Institute, Izatnagar 243122, India
| | - M I Yatoo
- Department of Veterinary Medicine, Indian Veterinary Research Institute, Izatnagar 243122, India
| | - Uttam S Thakur
- Department of Pharmacology, Indian Veterinary Research Institute, Izatnagar 243122, India
| | - Dnyaneshwar U Bawankule
- Molecular Bioprospection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India.
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Ibrahim SR, Fouad MA, Abdel-Lateff A, Okino T, Mohamed GA. Alnuheptanoid A: a new diarylheptanoid derivative from Alnus japonica. Nat Prod Res 2014; 28:1765-71. [DOI: 10.1080/14786419.2014.947489] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sabrin R.M. Ibrahim
- Department of Pharmacognosy and Pharmaceutical Chemistry, Faculty of Pharmacy, Taibah University, Al Madinah Al Munawwarah, 30078, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Mostafa A. Fouad
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, 61519, Minia, Egypt
| | - Ahmed Abdel-Lateff
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, 61519, Minia, Egypt
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Kingdom of Saudi Arabia
| | - Tatsufumi Okino
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Gamal A. Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Kingdom of Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
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Novaković M, Pešić M, Trifunović S, Vučković I, Todorović N, Podolski-Renić A, Dinić J, Stojković S, Tešević V, Vajs V, Milosavljević S. Diarylheptanoids from the bark of black alder inhibit the growth of sensitive and multi-drug resistant non-small cell lung carcinoma cells. PHYTOCHEMISTRY 2014; 97:46-54. [PMID: 24290194 DOI: 10.1016/j.phytochem.2013.11.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 10/25/2013] [Accepted: 11/03/2013] [Indexed: 06/02/2023]
Abstract
An extended study of minor diarylheptanoids from the bark of black alder has resulted in the isolation of twenty diarylheptanoids, ten of which have not previously been reported (14-18, 20-24). The structures and configurations of all compounds were elucidated by NMR, HRESIMS, UV, IR, and CD. The anti-cancer potency of twenty diarylheptanoids and four previously isolated compounds (7, 10, 12, 13) was investigated in human non-small cell lung carcinoma cell lines (sensitive and multi-drug resistant variants) as well as in normal human keratinocytes. Diarylheptanoids with a p-coumaroyl group, 14 and 18, platyphylloside (1), platyphyllonol-5-O-β-D-xylopyranoside (2), alnuside B (4) and hirsutenone (9) exhibited strong anti-cancer activity, considerably higher than diarylheptanoid curcumin, which served as a positive control. Compounds 4, 9, 14, and 18 displayed significant selectivity towards the cancer cells. Structure/activity analysis of twenty-four closely related diarylheptanoids revealed a high dependence of cytotoxic action on the presence of a carbonyl group at C-3. Substitution of a heptane chain on C-5 and a number of hydroxyl groups in the aromatic rings also emerged as a significant structural feature that influenced their cytotoxic potential.
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Affiliation(s)
- Miroslav Novaković
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Studentski trg 12-16, 11058 Belgrade, Serbia.
| | - Milica Pešić
- Institute for Biological Research, Department of Neurobiology, University of Belgrade, Despota Stefana 142, 11060 Belgrade, Serbia
| | - Snežana Trifunović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11058 Belgrade, Serbia
| | - Ivan Vučković
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11058 Belgrade, Serbia
| | - Nina Todorović
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Studentski trg 12-16, 11058 Belgrade, Serbia
| | - Ana Podolski-Renić
- Institute for Biological Research, Department of Neurobiology, University of Belgrade, Despota Stefana 142, 11060 Belgrade, Serbia
| | - Jelena Dinić
- Institute for Biological Research, Department of Neurobiology, University of Belgrade, Despota Stefana 142, 11060 Belgrade, Serbia
| | - Sonja Stojković
- Institute for Biological Research, Department of Neurobiology, University of Belgrade, Despota Stefana 142, 11060 Belgrade, Serbia
| | - Vele Tešević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11058 Belgrade, Serbia
| | - Vlatka Vajs
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Studentski trg 12-16, 11058 Belgrade, Serbia
| | - Slobodan Milosavljević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11058 Belgrade, Serbia
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Yadav D, Kushwaha V, Saxena K, Verma R, Murthy PK, Gupta MM. Diarylheptanoid compounds from Alnus nepalensis express in vitro and in vivo antifilarial activity. Acta Trop 2013; 128:509-17. [PMID: 23911333 DOI: 10.1016/j.actatropica.2013.07.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 07/15/2013] [Accepted: 07/21/2013] [Indexed: 11/17/2022]
Abstract
A large number of medicinal plants remain to be explored for antifilarial compounds. In the present study a crude methanolic extract of leaves of Alnus nepalensis, chloroform- and n-butanol-partitioned fractions from the crude extract and 6 bioactivity-guided isolated compounds including two new diarylheptanoid from the fractions were assayed for microfilaricidal, macrofilaricidal and female worm sterilizing activity using the lymphatic filariid Brugia malayi in in vitro and in vivo systems. In vitro, the crude methanolic extract exerted better microfilaricidal (LC100: 15.63μg/ml, IC50: 6.00μg/ml) than macrofilaricidal (LC100: >250; IC50: 88μg/ml) activity whereas chloroform and n-butanol fractions were more macrofilaricidal (LC100: 125 and 31.25μg/ml; IC50: 13.14 and 11.84, respectively) than microfilaricidal (LC100: 250-500μg/ml, IC50: 44.16μg/ml). In addition, n-butanol fraction also caused 74% inhibition in MTT reduction potential of the adult worms. In vivo (doses: crude: 100-200mg/kg; fractions: 100mg/kg, i.p.×5 days) the chloroform fraction exerted >50% macrofilaricidal activity whereas methanolic extract and n-butanol fraction produced 38-40% macrofilaricidal action along with some female sterilizing efficacy. Of the 5 diarylheptanoid compounds isolated, alnus dimer, and (5S)-5-hydroxy-1-(4-hydroxyphenyl)-7-(3,4-dihydroxyphenyl)-3-heptanone were found to show the most potent with both macrofilaricidal (LC100: 15.63μg/ml, IC50: 6.57-10.31μg/ml) and microfilaricidal (LC100: 31.25-62.5μg/ml, IC50: 11.05-22.10μg/ml) activity in vitro. These findings indicate that the active diarylheptanoid compounds may provide valuable lead for design and development of new antifilarial agent(s).
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Affiliation(s)
- Deepti Yadav
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
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Yadav D, Gupta MM. Simultaneous Quantification of Diarylheptanoids in Alnus nepalensis Using a Validated HPTLC Method. J Chromatogr Sci 2013; 52:905-10. [DOI: 10.1093/chromsci/bmt115] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yadav D, Singh SC, Verma RK, Saxena K, Verma R, Murthy PK, Gupta MM. Antifilarial diarylheptanoids from Alnus nepalensis leaves growing in high altitude areas of Uttarakhand, India. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2013; 20:124-132. [PMID: 23219341 DOI: 10.1016/j.phymed.2012.10.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 10/25/2012] [Accepted: 10/29/2012] [Indexed: 06/01/2023]
Abstract
Lymphatic filariasis continues to be a major health problem in tropical and subtropical countries. A macrofilaricidal agent capable of eliminating adult filarial parasites is urgently needed. Platyphyllenone (A), alusenone (B), hirustenone (C) and hirsutanonol (D) are important biologically active diarylheptanoids present in Alnus nepalensis. In the present study, we report the antifilarial activity in diarylheptanoids isolated from the leaves of A. nepalensis. Out of four compounds (A-D) tested in vitro one has shown promising anti-filarial activity both in vitro and in vivo studies. This is the first ever report on antifilarial efficacy of a compound of the plant and warrants further studies around this scaffold. In addition, a sensitive, selective and robust densitometric high-performance thin-layer chromatographic method was developed and validated for the above four biomarker compounds. The separation was performed on silica gel 60F(254) high-performance thin layer chromatography plates using chloroform:methanol (9:1, v/v) as mobile phase. The quantitation of marker compounds was carried out using densitometric reflection/absorption mode at 600 nm after post-chromatographic derivatization using vanillin-sulfuric acid reagent. The method was validated for peak purity, precision, robustness, limit of detection (LOD) and quantitation (LOQ) etc., as per the International Conference on Harmonization (ICH) guidelines.
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Affiliation(s)
- Deepti Yadav
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, India
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Sati SC, Sati N, Sati OP. Bioactive constituents and medicinal importance of genus Alnus. Pharmacogn Rev 2012; 5:174-83. [PMID: 22279375 PMCID: PMC3263052 DOI: 10.4103/0973-7847.91115] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Revised: 02/22/2011] [Accepted: 12/23/2011] [Indexed: 11/04/2022] Open
Abstract
The genus Alnus has been reviewed for its chemical constituents and biological activities including traditional importance of some common species. The plants of this genus contain terpenoids, flavonoids, diarylheptanoids, phenols, steroids, and tannins. Diarylheptanoids are the dominant constituents within the genus Alnus, few of them exhibited antioxidant effects and inhibitory activity against nuclear factor kappaB activation, nitric oxide and tumor necrosis factor-α production, human umbilical vein endothelial cells, farnesyl protein transferase, cell-mediated low-density lipoprotein oxidation, HIF-1 in AGS cells, and the HIV-1-induced cytopathic effect in MT-4 cells. Some ellagitannines showed hepatoprotective activity even in a dose of 1 mg/kg which is ten-fold smaller compared with the dose of traditional flavonoid-based drugs. The members of genus Alnus are well known for their traditional uses in the treatment of various diseases like cancer, hepatitis, inflammation of uterus, uterine cancer, rheumatism, dysentery, stomachache, diarrhea, fever, etc. The aim of the present review is to summarize the various researches related to the chemistry and pharmacology of genus Alnus.
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Affiliation(s)
- Sushil Chandra Sati
- Department of Chemistry, H.N.B. Garhwal University, Srinagar Garhwal, Uttarakhand, India
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Choi SE, Park KH, Jeong MS, Kim HH, Lee DI, Joo SS, Lee CS, Bang H, Choi YW, Lee MK, Seo SJ, Lee MW. Effect of Alnus japonica extract on a model of atopic dermatitis in NC/Nga mice. JOURNAL OF ETHNOPHARMACOLOGY 2011; 136:406-413. [PMID: 21184819 DOI: 10.1016/j.jep.2010.12.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 11/11/2010] [Accepted: 12/13/2010] [Indexed: 05/30/2023]
Abstract
AIM OF THE STUDY The bark of Alnus species has long been used in traditional oriental medicine in the treatment of many pathological conditions, including fever, hemorrhage, diarrhea, alcoholism, various skin diseases (e.g. chronic herpes, eczema and prurigo), and inflammation. In order to assess the immunomodulatory efficacy of a novel herbal medicine in treating atopic dermatitis, we measured serum levels of several allergic and inflammatory biomarkers in NC/Nga mice before and after treatment with this experimental agent. MATERIALS AND METHODS Gene and protein expression analyses of iNOS and COX-2 were quantified by real time PCR and Western blot analysis and serum levels of IL-4, -5 and -13 were also measured by ELISA, all of which were reduced after treatment with the experimental agent. Additionally, serum concentrations of IgE and blood eosinophil counts were reduced in treated mice. RESULTS The topical application of leaf and bark extract from Alnus japonica suppressed the development of AD-like skin lesions. The percent of blood eosinophils was decreased after treatment with leaf and bark extract from Alnus japonica. The serum IgE and Th2-related cytokine levels were decreased after treatment with leaf and bark extract from Alnus japonica compared with those treated with base cream (vehicle treated AD group). The IL-4, IL-5 and IL-13 were lower than those of vehicle treated AD group. CONCLUSIONS We contend that leaf and bark extract from Alnus japonica may prove useful in the treatment of atopic dermatitis and other allergic skin diseases, although more in-depth clinical studies are necessary before clinical implementation.
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Affiliation(s)
- Sun Eun Choi
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
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15
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Diarylheotanoid from Alnus hirsuta improves glucose metabolism via insulin signal transduction in human hepatocarcinoma (HepG2) cells. BIOTECHNOL BIOPROC E 2011. [DOI: 10.1007/s12257-010-0311-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Mangiferonic acid, 22-hydroxyhopan-3-one, and physcion as specific chemical markers for Alnus nepalensis. BIOCHEM SYST ECOL 2010. [DOI: 10.1016/j.bse.2010.09.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Tung NH, Ra JC, Sohn DH, Kim YH. A new diarylheptanoid from the bark of Alnus japonica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2010; 12:921-924. [PMID: 20924906 DOI: 10.1080/10286020.2010.507196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A new diarylheptanoid, epihirsutanonol (1), was isolated from the bark of Alnus japonica, along with two known ones (2 and 3). Their structures were elucidated on the basis of extensive spectroscopic evidence. The new compound 1 showed significant hepatoprotective activity on the basis of t-butylhydroperoxide-induced hepatocyte injury in vitro assay.
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Affiliation(s)
- Nguyen Huu Tung
- College of Pharmacy, Chungnam National University, Daejeon, South Korea
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18
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Abstract
Diarylheptanoids, natural products with a 1,7-diphenylheptane structural skeleton, are mainly distributed in the roots, rhizomes and bark of Alpinia, Zingiber, Curcuma and Alnus species. They have become of interest in natural product research over the past twenty years because of their remarkable anticancer, anti-emetic, estrogenic, antimicrobial and antioxidant activity. This paper compiles all 307 naturally occurring diarylheptanoids from 46 plants as reported in 137 references with their distributions, physiological activities and 13C-NMR spectral data.
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Affiliation(s)
- Haining Lv
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Gaimei She
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China
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19
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Park D, Kim HJ, Jung SY, Yook CS, Jin C, Lee YS. A new diarylheptanoid glycoside from the stem bark of Alnus hirsuta and protective effects of diarylheptanoid derivatives in human HepG2 cells. Chem Pharm Bull (Tokyo) 2010; 58:238-41. [PMID: 20118587 DOI: 10.1248/cpb.58.238] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To search for secondary metabolites of Alnus hirsuta (Betulaceae), various chromatographic separations of the ethyl acetate soluble fraction of the stem bark of A. hirsuta led to the isolation of a new diarylheptanoid glycoside, (3R)-1,7-bis-(4-dihydroxyphenyl)-3-heptanol 3-O-beta-D-glucopyranosyl(1-->3)-beta-D-xylopyranoside (13) and twelve diarylheptanoid derivatives, namely, oregonin (1), rubranoside A (2), hirsutanonol 5-O-beta-D-glucopyranoside (3), rubranoside B (4), rubranoside C (5), hirsutanonol (6), hirsutenone (7), (5S)-O-methylhirsutanonol (8), platyphylloside (9), platyphyllonol 5-O-beta-D-xylopyranoside (10), aceroside VII (11) and platyphyllenone (12). Isolates were assessed for their hepatoprotective effects against tert-butylhydroperoxide (t-BHP)-induced toxicity in HepG2 cells. Of these isolates, compounds 1-8 showed significant hepatoprotective effects on t-BHP-induced damage to HepG2 cells, with 8 exhibiting the greatest protective effect (50.7 + or - 3.7% at a concentration of 10 microM).
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Affiliation(s)
- Daae Park
- Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 1 Hoegi-Dong, Seoul 130-701, Korea
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20
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Tung NH, Kwon HJ, Kim JH, Ra JC, Ding Y, Kim JA, Kim YH. Anti-influenza diarylheptanoids from the bark of Alnus japonica. Bioorg Med Chem Lett 2009; 20:1000-3. [PMID: 20045319 DOI: 10.1016/j.bmcl.2009.12.057] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Revised: 12/10/2009] [Accepted: 12/11/2009] [Indexed: 11/28/2022]
Abstract
This study to investigate anti-influenza components from the bark of Alnus japonica resulted in the isolation of two rare acylated diarylheptanoids, named oregonoyl A (5) and oregonoyl B (6), along with nine known compounds (1-4 and 7-11). Their structures were elucidated on the basis of extensive spectroscopic and chemical methods. Antiviral testing of compounds 1-11 against KBNP-0028 (H9N2) avian influenza virus showed that platyphyllone (10) was strongly active, and platyphyllonol-5-xylopyranoside (9) was moderately active against KBNP-0028 as compared with the positive control, zanamivir, respectively.
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Affiliation(s)
- Nguyen Huu Tung
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea
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21
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Cytotoxic activities of diarylheptanoids from Alnus japonica. Arch Pharm Res 2008; 31:1287-9. [PMID: 18958419 DOI: 10.1007/s12272-001-2108-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Revised: 09/12/2008] [Accepted: 10/06/2008] [Indexed: 10/21/2022]
Abstract
The diarylheptanoids (1-10) 1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-O-beta-D-glucopyranosyl(1-->3)-beta-D-xylopyranoside (1), 1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-O-beta-D-apiofuranosyl(1-->6)-beta-D-glucopyranoside (2), 1,7-bis-(3,4-dihydroxyphenyl)-heptane-5-O-beta-D-glucopyranoside (3), 1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptane (4), 1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-one-5-O-beta-D-glucopyranoside (5), oregonin (6), hirsutanonol (7), hirsutenone (8), 1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptane-3-O-beta-D-xylopyranoside (9), and platyphylloside (10), isolated from the bark of Alnus japonica, were analyzed for their cytotoxic activities on various human and mouse cancer cell lines. The cytotoxic activities of these ten compounds were evaluated against murine B16 melanoma, human SNU-1 gastric cancer, human SNU-354 hepatoma cancer and human SNU-C4 colorectal cell lines. The diarylheptanoids showed potent cytotoxic activities against murine B16 melanoma cells and human SNU-C1 gastric cancer cell when the cell viability was analyzed by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide) assay.
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22
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Jin W, Cai XF, Na M, Lee JJ, Bae K. Diarylheptanoids from Alnus hirsuta inhibit the NF-kB activation and NO and TNF-alpha production. Biol Pharm Bull 2007; 30:810-3. [PMID: 17409527 DOI: 10.1248/bpb.30.810] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Six diarylheptanoids (1-6) from the stem bark of Alnus hirsuta were investigated for their inhibitory activity against LPS-induced NF-kB activation and NO and TNF-alpha production. Among them, compounds 2, 3, and 6 displayed inhibitory activity against NF-kB activation and NO and TNF-alpha production with IC50 values of 9.2-9.9 microM, 18.2-19.3 microM, and 22.3-23.7 microM, respectively, in RAW264.7 cells. Three active compounds had no significant cytotoxicity in RAW264.7 cells at their effective concentrations. This is the first report of NF-kB-inhibitory activity of these compounds and supports the pharmacological use of A. hirsuta, which has been employed as a herbal medicine for the treatment of inflammatory diseases.
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Affiliation(s)
- WenYi Jin
- College of Pharmacy, Chungnam National University, Korea
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23
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Jin W, Cai XF, Na M, Lee JJ, Bae K. Triterpenoids and diarylheptanoids from alnus hirsuta inhibit HIF-1 in ags cells. Arch Pharm Res 2007; 30:412-8. [PMID: 17489355 DOI: 10.1007/bf02980213] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bioassay-guided fractionation and purification of the EtOAc soluble fraction from the MeOH extract of the stem bark of Alnus hirsuta (Betulaceae), using an in vitro HIF-1 assay, led to the isolation of four triterpenoids (1-4) and six diarylheptanoids (5-10). Their structures were determined by comparison with the physicochemical and spectroscopic data in the literature. These compounds were investigated for their effects on the hypoxia-induced HIF-1 activation using an HIF-1a mediated reporter gene assay in AGS cells. Among them, two diarylheptanoids, 2-oxatrycyclo[13.2.2.13,7]eicosa-3,5,7(20),15,17,18-hexaen-10-16-diol (6) and 2-oxatrycyclo [13.2.2.13,7]eicosa-3,5,7-(20),15,17,18-hexaen-10-one (7), inhibited HIF-1 activation dose-dependently with IC50 values of 11.2 microM and 12.3 microM, respectively. These two compounds had no significant cytotoxicity to the AGS cells at the effective concentration for the inhibition of HIF-1 activation.
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Affiliation(s)
- WenYi Jin
- College of Pharmacy, Chungnam National University, Daejeon, Korea
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24
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Cho SM, Kwon YM, Lee JH, Yon KH, Lee MW. Melanogenesis inhibitory activities of diarylheptanoids from Alnus hirsuta Turcz in B16 mouse melanoma cell. Arch Pharm Res 2002; 25:885-8. [PMID: 12510843 DOI: 10.1007/bf02977009] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Four diarylheptanoids, (5R-1,7-bis (3,4-dihydroxyphenyl)-heptane-5-O-beta-D-glucoside (1), (5R) 1,7-bis (3,4-dihydroxyphenyl)-heptane-5-ol (2), oregonin (3), hirsutanonol (4), were isolated from the bark of Alnus hirsuta Turcz and its inhibitory effects on melanogenesis by measuring the melanin level and tyrosinase activity in B16 melanoma cell were examined. Melanin level and tyrosinase activity were reduced to 75 to 85% by addition of diarylheptanoids to incubation medium of the melanoma cell. On the other hand, melanin level and tyrosinase activity were reduced to 13 to 43% by the addition of diarylheptanoids to incubation medium of the melanoma cell treated with melanogenesis stimulator, alpha-MSH and forskolin. These melanogenesis inhibitory effects were significantly different compared with control.
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Affiliation(s)
- Soo Min Cho
- College of Pharmacy, Chung-Ang University, Seoul, Korea
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