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Qin JC, Tuo CJ, Zhang KT, Liu CJ, Liu MY, Zhao Q, Zhang XM. Preparation and antibacterial activity of coronarin E derivatives. Nat Prod Res 2024; 38:1898-1908. [PMID: 37378495 DOI: 10.1080/14786419.2023.2228982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 06/10/2023] [Accepted: 06/20/2023] [Indexed: 06/29/2023]
Abstract
Coronarin E is a main diterpene ever isolated from Hedychium yunnanense. With the aim to enlarge its potential application, four butenolide derivatives (compounds 4a, 4b, 5a and 5b) were obtained from coronarin E via synthetic method, and their antibacterial effects were also evaluated. It is noteworthy that compounds 5a and 5b exhibited stronger antibacterial activities against most of the tested bacterial strains than ampicillin and kanamycin, two first- and second-line antimicrobials in clinical. For example, minimum inhibitory concentration (MIC) of 5a, 5b, ampicillin and kanamycin against Acinetobacter baumanii were 2, 1, 8 and 4 μg/mL, respectively, and MIC of the four compounds mentioned above against Klebsiella pneumonia were 1, 0.5, 16 and 4 μg/mL, respectively. The current studies not only enrich the structural diversity of diterpenes derived from Hedychium genus, but also provide potent candidates for the development of antibacterial medicines.
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Affiliation(s)
- Jie-Chen Qin
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Cheng-Jie Tuo
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Ke-Tao Zhang
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Chao-Jin Liu
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Meng-Yujie Liu
- Department of Pharmacy, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Qing Zhao
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
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Zhao Y, Wang ZJ, Wang CB, Tan BY, Luo XD. New and Antifungal Diterpenoids of Sunflower against Gray Mold. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16647-16656. [PMID: 37877578 DOI: 10.1021/acs.jafc.3c05553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Sunflower (Helianthus annuus L.) is cultivated around the world as an oil crop, and its receptacle is the byproduct and is usually deemed to be an agro-industrial waste. Then, phytochemical constituents and antifungal bioactivity of the sunflower receptacle against phytopathogenic fungi were investigated. As a result, 17 diterpenoids including 4 new compounds were isolated, and most of them showed potential antifungal activity against Botrytis cinerea, in which compounds 1, 3, 5, and 15 exhibited better inhibitory effect with the minimum inhibitory concentration values of 0.05-0.1 mg/mL. Meanwhile, four antifungal diterpenoids destructed plasma membrane integrity, suspended the biofilm formation ability, and increased the extravasation of cellular contents of B. cinerea. Moreover, the EtOAc extract of sunflower receptacle could keep 42.9% of blueberries from the invasion of B. cinerea at 1.6 mg/mL. The finding suggested that sunflower receptacle might be a biocontrol agent for preventing fruit from postharvest diseases.
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Affiliation(s)
- Yun Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zi-Jiao Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Chang-Bin Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bang-Yin Tan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
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Wiart C, Kathirvalu G, Raju CS, Nissapatorn V, Rahmatullah M, Paul AK, Rajagopal M, Sathiya Seelan JS, Rusdi NA, Lanting S, Sulaiman M. Antibacterial and Antifungal Terpenes from the Medicinal Angiosperms of Asia and the Pacific: Haystacks and Gold Needles. Molecules 2023; 28:molecules28093873. [PMID: 37175283 PMCID: PMC10180233 DOI: 10.3390/molecules28093873] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/17/2023] [Accepted: 03/18/2023] [Indexed: 05/15/2023] Open
Abstract
This review identifies terpenes isolated from the medicinal Angiosperms of Asia and the Pacific with antibacterial and/or antifungal activities and analyses their distribution, molecular mass, solubility, and modes of action. All data in this review were compiled from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem, and library searches from 1968 to 2022. About 300 antibacterial and/or antifungal terpenes were identified during this period. Terpenes with a MIC ≤ 2 µg/mL are mostly amphiphilic and active against Gram-positive bacteria, with a molecular mass ranging from about 150 to 550 g/mol, and a polar surface area around 20 Ų. Carvacrol, celastrol, cuminol, dysoxyhainic acid I, ent-1β,14β-diacetoxy-7α-hydroxykaur-16-en-15-one, ergosterol-5,8-endoperoxide, geranylgeraniol, gossypol, 16α-hydroxy-cleroda-3,13 (14)Z-diene-15,16-olide, 7-hydroxycadalene, 17-hydroxyjolkinolide B, (20R)-3β-hydroxy-24,25,26,27-tetranor-5α cycloartan-23,21-olide, mansonone F, (+)-6,6'-methoxygossypol, polygodial, pristimerin, terpinen-4-ol, and α-terpineol are chemical frameworks that could be candidates for the further development of lead antibacterial or antifungal drugs.
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Affiliation(s)
- Christophe Wiart
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Geethanjali Kathirvalu
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Chandramathi Samudi Raju
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Veeranoot Nissapatorn
- Research Excellence Centre for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhaka 1207, Bangladesh
| | - Alok K Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur 56000, Malaysia
| | | | - Nor Azizun Rusdi
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Scholastica Lanting
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
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Van HT, Thang TD, Luu TN, Doan VD. An overview of the chemical composition and biological activities of essential oils from Alpinia genus (Zingiberaceae). RSC Adv 2021; 11:37767-37783. [PMID: 35498079 PMCID: PMC9044187 DOI: 10.1039/d1ra07370b] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/05/2021] [Indexed: 11/21/2022] Open
Abstract
Alpinia Roxb. is the largest genus of the Zingiberaceae family. A large number of Alpinia species has been used as food and traditional medicines. Alpinia essential oils have been studied for their chemical profiles, in which 1,8-cineole, β-pinene, α-pinene, β-myrcene, camphor, γ-terpinene, p-cymene, geraniol, α-fenchyl acetate, ocimene, methyl cinnamate, and β-caryophyllene have been found to be the major compounds. Essential oils isolated from Alpinia plants have been reported to have antimicrobial, cytotoxic, antioxidant, anti-inflammatory, anti-asthmatic, tyrosinase inhibitory, insecticidal, and larvicidal activities and slimming aromatherapy. In this review, the comprehensive information regarding the volatile components of various Alpinia plants, the bioactivities of Alpinia essential oils and their major compounds are provided.
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Affiliation(s)
- Hong Thien Van
- Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City No. 12 Nguyen Van Bao Street, Ward 4, Go Vap District Ho Chi Minh City Vietnam
| | - Tran Dinh Thang
- Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City No. 12 Nguyen Van Bao Street, Ward 4, Go Vap District Ho Chi Minh City Vietnam
| | - Thao Nguyen Luu
- Institute of Biotechnology and Food Technology, Industrial University of Ho Chi Minh City No. 12 Nguyen Van Bao Street, Ward 4, Go Vap District Ho Chi Minh City Vietnam
| | - Van Dat Doan
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City No. 12 Nguyen Van Bao, Ward 4, Go Vap District Ho Chi Minh City Vietnam
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Ferreira AE, Rocha ACFS, Bastos JK, Heleno VCG. Software-assisted methodology for complete assignment of 1H and 13C NMR data of poorly functionalized molecules: The case of the chemical marker diterpene ent‑copalic acid. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129439] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Misra A, Dwivedi J, Shukla S, Kishore D, Sharma S. Bacterial cell leakage potential of newly synthesized quinazoline derivatives of 1,5‐benzodiazepines analogue. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Apoorva Misra
- Department of ChemistryBanasthali Vidyapith Rajasthan India
| | - Jaya Dwivedi
- Department of ChemistryBanasthali Vidyapith Rajasthan India
| | - Shruti Shukla
- Department of ChemistryBanasthali Vidyapith Rajasthan India
| | - Dharma Kishore
- Department of ChemistryBanasthali Vidyapith Rajasthan India
| | - Swapnil Sharma
- Department of PharmacyBanasthali Vidyapith Rajasthan India
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Yoshioka Y, Yoshimura N, Matsumura S, Wada H, Hoshino M, Makino S, Morimoto M. α-Glucosidase and Pancreatic Lipase Inhibitory Activities of Diterpenes from Indian Mango Ginger ( Curcuma amada Roxb.) and Its Derivatives. Molecules 2019; 24:E4071. [PMID: 31717689 PMCID: PMC6891541 DOI: 10.3390/molecules24224071] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 10/30/2019] [Accepted: 11/04/2019] [Indexed: 12/29/2022] Open
Abstract
Enzymatic inhibitions of crude extracts and their constituents from Zingiberaceae against both rat intestinal α-glucosidase and porcine pancreatic lipase were investigated. Structure-activity relationships using their derivatives were also investigated. The rhizomes extract of mango ginger, Curcuma amada showed remarkable inhibitory activity in the screening test. Two natural labdane diterpenes 1 and 2 and a drimane sesquiterpene 3 were major constituents isolated from this hexane extract. Among them, (E)-labda-8(17),12-diene-15,16-dial (1) was the most prominent compound and showed inhibitory activity against both α-glucosidase and lipase. Derivatives 4-10 from compound 1 were prepared and evaluated using inhibitory assays with these enzymes. The reduced derivative 4 maintained α-glucosidase inhibitory activity, but had decreased pancreatic lipase inhibitory activity compared with parent compound 1. Other tested derivatives of compound 1, including acetates 5-7 and oxidative derivatives 8-10, had very weak α-glucosidase inhibitory activity. Most of these compounds showed moderate pancreatic lipase inhibitory activity. However, only sesquiterpene albicanal (3) showed drastically decreased pancreatic lipase activity compared with 1. These findings suggested that molecular size was essential for enzymatic inhibitory activities of these compounds. These results demonstrated that mango ginger may be useful for the prevention of obesity and being overweight.
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Affiliation(s)
- Yuri Yoshioka
- Natural products, Inabata Koryo Co., Ltd., Osaka 320027, Japan; (Y.Y.); (S.M.); (S.M.)
| | - Naori Yoshimura
- Department of Applied Biological Chemistry, School of Agriculture, Kindai University, Nara 6318505, Japan; (N.Y.); (H.W.); (M.H.)
| | - Shinichi Matsumura
- Natural products, Inabata Koryo Co., Ltd., Osaka 320027, Japan; (Y.Y.); (S.M.); (S.M.)
| | - Hiroto Wada
- Department of Applied Biological Chemistry, School of Agriculture, Kindai University, Nara 6318505, Japan; (N.Y.); (H.W.); (M.H.)
| | - Maya Hoshino
- Department of Applied Biological Chemistry, School of Agriculture, Kindai University, Nara 6318505, Japan; (N.Y.); (H.W.); (M.H.)
| | - Shouhei Makino
- Natural products, Inabata Koryo Co., Ltd., Osaka 320027, Japan; (Y.Y.); (S.M.); (S.M.)
| | - Masanori Morimoto
- Department of Applied Biological Chemistry, School of Agriculture, Kindai University, Nara 6318505, Japan; (N.Y.); (H.W.); (M.H.)
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Sharma D, Patel S, Verma K, Gudlawar S, Chakraborty D, Paliwal S, Dwivedi J, Sharma S. Antibacterial and antidiarrheal activity of Butea Monospermea bark extract against waterborne enterobacter Cloacae in rodents: In-vitro, Ex-vivo and In-Vivo evidences. JOURNAL OF ETHNOPHARMACOLOGY 2019; 241:112014. [PMID: 31181315 DOI: 10.1016/j.jep.2019.112014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/30/2019] [Accepted: 06/02/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Butea monosperma (Lam.) Taub. (family Leguminosae), popularly known as 'Palash' possess numerous medicinal properties since ancient times. According to the Wealth of India, stem bark of this plant exhibits various therapeutic properties like antimicrobial, astringent, styptic, aphrodisiac, and anti-inflammatory. AIM OF THE STUDY The purpose of the present study was to investigate antibacterial and antidiarrheal effect of B. monosperma bark against newly isolated gram negative pathogenic bacterial strain Enterobacter cloacae. MATERIALS AND METHODS Aqueous extract of B. monosperma bark (BMAqE) was subjected to LC-MS/MS analysis for determination of bioactive components. Antibacterial study of BMAqE was assessed using bacterial growth kinetic study, fluorescence spectroscopy, outer and inner membrane permeability assay, dehydrogenase inhibitory assay and protein leakage assay followed by field emission scanning electron microscope (FE-SEM) study. Antidiarrheal activity was studied using castor oil induced diarrhea model in albino rats followed by histopathology studies of rat ileum. RESULTS LC-MS/MS analysis of BMAqE revealed presence of twenty-two different active phytoconstituents out of which most of the constituents belong to flavonoid and polyphenol family. BMAqE showed MIC and MBC (IC90) value of 5 and 200 μg/mL against targeted bacterial strain. BMAqE exhibited potent and dose dependent bactericidal effect via disruption of integrity of bacterial cell membrane, enzymatic degradation, leakage of intracellular protein and ruptured bacterial cell. In castor oil induced diarrhea model, BMAqE (200 mg/kg; orally) caused marked reduction (75.66%) in the frequency of defecation and mean weight of faeces (0.54 ± 0.04) when compared to control group (2.26 ± 0.25). Histopathology study revealed marked restoration of cellular architecture of rat ileum tissue. Four known flavonoids were isolated from BMAqE using column chromatography. In ex-vivo study, BMAqE (0.0002, 0.0004 and 0.0006 g/L) and isolated flavonoids i.e. rhamnetin, quercetin, kaempferol and catechin (0.5, 5 & 50 μm) produced a significant (p < 0.001) change in EC50 and indicated competitive phenomena via rightward shift of acetylcholine CRC with pA2 of 3.78, 8.0, 7.1, 7.0 and 6.9 respectively. CONCLUSION BMAqE exhibits impressive antibacterial and anti-diarrheal activity and can be effectively used to eradicate water borne diseases.
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Affiliation(s)
- Divya Sharma
- Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, India.
| | - Saraswati Patel
- Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, India.
| | - Kanika Verma
- Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, India.
| | - Shiva Gudlawar
- Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, India.
| | - Dipjyoti Chakraborty
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, Rajasthan, India.
| | - Sarvesh Paliwal
- Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, India.
| | - Jaya Dwivedi
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India.
| | - Swapnil Sharma
- Department of Pharmacy, Banasthali Vidyapith, Banasthali, Rajasthan, India.
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Misra A, Jain S, Kishore D, Dave V, Reddy KR, Sadhu V, Dwivedi J, Sharma S. A facile one pot synthesis of novel pyrimidine derivatives of 1,5-benzodiazepines via domino reaction and their antibacterial evaluation. J Microbiol Methods 2019; 163:105648. [PMID: 31195033 DOI: 10.1016/j.mimet.2019.105648] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 06/02/2019] [Accepted: 06/02/2019] [Indexed: 11/26/2022]
Abstract
A new series of pyrimidine (8, 14, 18 and 23) embellished analogues of 1,5-benzodiazepines were synthesized by the one-pot domino approach using the catalyst DABCO (1,4-diazabicyclo[2.2.2]octane). For each compound synthesized, anti-microbial efficacy was determined using broth microdilution assay and half maximal inhibitory concentration (IC50). Furthermore, FESEM (Field emission scanning electron microscope) studies were also carried out to observe the effect of the structure of test compounds on the morphology of both Gram-positive (S. aureus) and Gram-negative (E. coli) cell walls. The leakage of nucleotides and their integral components from compromised bacterial cells was assessed by plotting the optical density (OD) with respect to time of exposure at 320 nm. Anti-bacterial studies revealed that compound 23 was most active against targeted bacterial species. Results of the antibacterial study indicated that all the test compounds possess significant antibacterial potential against targeted bacterial strains. Amongst all, in the FE-SEM study, compound 23 caused marked alteration in bacterial cell morphology and resulted in maximum leakage of cell nucleotides in bacterial strains as compared to controls. Further efforts are required to establish their efficacy as antibacterial agents in clinical management.
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Affiliation(s)
- Apoorva Misra
- Department of Chemistry, Banasthali Vidyapith, Rajasthan 304022, India
| | - Sonika Jain
- Department of Chemistry, Banasthali Vidyapith, Rajasthan 304022, India
| | - Dharma Kishore
- Department of Chemistry, Banasthali Vidyapith, Rajasthan 304022, India
| | - Vivek Dave
- Department of Pharmacy, Banasthali Banasthali Vidyapith, Rajasthan 304022, India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Veera Sadhu
- School of Physical Sciences, Banasthali Vidyapith, Rajasthan, 304022, India.
| | - Jaya Dwivedi
- Department of Chemistry, Banasthali Vidyapith, Rajasthan 304022, India.
| | - Swapnil Sharma
- Department of Pharmacy, Banasthali Banasthali Vidyapith, Rajasthan 304022, India
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Chakrabartty I, Vijayasekhar A, Rangan L. Therapeutic potential of labdane diterpene isolated from Alpinia nigra: detailed hemato-compatibility and antimicrobial studies. Nat Prod Res 2019; 35:1000-1004. [PMID: 31135189 DOI: 10.1080/14786419.2019.1610756] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
(E)-labda-8(17), 12-diene-15,16-dial has been isolated from the seeds of Alpinia nigra that is unsuitable for oral administration and evident from in silico studies. The present investigation therefore deals with understanding the effect of this compound on RBCs for intravenous administration. No prominent hemolytic effect of compound at a concentration of ≤0.4 mg/ml was found whereas higher concentrations perforated RBC membrane. The molecule showed remarkable inhibitory potential against Gram negative bacteria (concentration ≥0.025 mg/ml) causing cell lysis. In case of pathogenic yeast Candida albicans although growth was inhibited (concentration ≥ 0.0025 mg/ml), growth kinetic study revealed that the diterpene significantly delayed fungal growth (concentration 0.005-0.020 mg/ml) by preventing substrate uptake and was able to extend its lag phase in a dose-dependent manner. This study tries to unveil the mechanism of action of this diterpene on microorganisms with differential cell wall compositions.
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Affiliation(s)
- Ishani Chakrabartty
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Aswitha Vijayasekhar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Latha Rangan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
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11
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Synthesis, X-ray crystallographic study, pharmacology and docking of hydrazinyl thiazolyl coumarins as dengue virus NS2B/NS3 serine protease inhibitors. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2179-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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Chimnoi N, Reuk-Ngam N, Chuysinuan P, Khlaychan P, Khunnawutmanotham N, Chokchaichamnankit D, Thamniyom W, Klayraung S, Mahidol C, Techasakul S. Characterization of essential oil from Ocimum gratissimum leaves: Antibacterial and mode of action against selected gastroenteritis pathogens. Microb Pathog 2018; 118:290-300. [PMID: 29578062 DOI: 10.1016/j.micpath.2018.03.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 02/06/2023]
Abstract
Essential oil of fresh leaves of Ocimum gratissimum (OGEO) was water-steam distilled and analyzed by GC-MS. Thirty-seven compounds were identified, with eugenol (55.6%) as the major component followed by cis-ocimene (13.9%), γ-muurolene (11.6%), (Z,E)-α-farnesene (5.6%), α-trans-bergamotene (4.1%), and β-caryophyllene (2.7%). Antimicrobial activity of OGEO was tested against four gastroenteritis pathogens (Staphylococcus aureus, Escherichia coli, Salmonella Typhimurium, and Shigella flexneri). OGEO exhibited antibacterial effect, with MICs of 1-2 mg ml-1, against the tested species. OGEO also displayed rapid killing effect within 5 s at four times of MIC against both E. coli and S. Typhimurium. Various assays were performed to investigate the mode of action of the oil. OGEO increased the permeability of microbial cell membrane as evidenced by LIVE/DEAD BacLight assay. Analyses of the release of absorbing materials at 260 nm, protein leakage, SDS-PAGE, and SEM strongly suggested the disruptive action of the oil on the cytoplasmic membrane of the tested microorganisms. Results revealed that the antibacterial property of OGEO could be due to membrane disruption.
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Affiliation(s)
- Nitirat Chimnoi
- Laboratory of Natural Products, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Nanthawan Reuk-Ngam
- Laboratory of Organic Synthesis, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Piyachat Chuysinuan
- Laboratory of Organic Synthesis, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Panita Khlaychan
- Laboratory of Organic Synthesis, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Nisachon Khunnawutmanotham
- Laboratory of Organic Synthesis, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Daranee Chokchaichamnankit
- Laboratory of Biochemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Wassapol Thamniyom
- Office of Research, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Srikanjana Klayraung
- Department of Biology, Faculty of Science, Maejo University, Chiang Mai 50290, Thailand
| | - Chulabhorn Mahidol
- Laboratory of Natural Products, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand
| | - Supanna Techasakul
- Laboratory of Organic Synthesis, Chulabhorn Research Institute, 54 Kamphaeng Phet 6, Talat Bang Khen, Lak Si, Bangkok 10210, Thailand.
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Misra A, Sharma S, Sharma D, Dubey S, Mishra A, Kishore D, Dwivedi J. Synthesis and molecular docking of pyrimidine incorporated novel analogue of 1,5-benzodiazepine as antibacterial agent. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1430-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Daniel-Jambun D, Dwiyanto J, Lim YY, Tan JBL, Muhamad A, Yap SW, Lee SM. Investigation on the antimicrobial activities of gingers (Etlingera coccinea (Blume) S.Sakai & Nagam and Etlingera sessilanthera R.M.Sm.) endemic to Borneo. J Appl Microbiol 2017; 123:810-818. [PMID: 28708293 DOI: 10.1111/jam.13536] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/24/2017] [Accepted: 07/04/2017] [Indexed: 11/27/2022]
Abstract
AIMS To investigate the antimicrobial properties of Etlingera coccinea and Etlingera sessilanthera and to isolate and identify the antimicrobial compounds. METHODS AND RESULTS Extracts were obtained via sequential solvent extraction method using hexane, dichloromethane, ethyl acetate, methanol and water. Antimicrobial activity testing was done using broth microdilution assay against 17 strains of bacteria. The leaf hexane extract of E. coccinea and rhizome hexane extract of E. sessilanthera showed best antimicrobial activities, with minimum inhibitory concentration (MIC) values ranging from 0·016 to 1 mg ml-1 against Gram-positive bacteria. From these active extracts, two antimicrobials were isolated and identified as trans-2-dodecenal and 8(17),12-labdadiene-15,16-dial with MIC values ranging from 4 to 8 μg ml-1 against Bacillus cereus, Bacillus subtilis and Staphylococcus aureus. CONCLUSION Etlingera coccinea and E. sessilanthera demonstrated good antimicrobial activities against clinically relevant bacteria strains. The antimicrobial compounds isolated showed low MIC values, hence suggesting their potential use as antimicrobial agents. SIGNIFICANCE AND IMPACT OF THE STUDY This study is the first to identify the potent antimicrobials from these gingers. The antimicrobials isolated could potentially be developed further for use in treatment of bacterial infections. Also, this study warrants further research into other Etlingera species in search for more antimicrobial compounds.
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Affiliation(s)
- D Daniel-Jambun
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - J Dwiyanto
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Y Y Lim
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - J B L Tan
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - A Muhamad
- Structural and Biophysics Facility, Malaysia Genome Institute, National Institutes of Biotechnology Malaysia (MOSTI), Kajang, Selangor, Malaysia
| | - S W Yap
- Conservation and Environmental Management Division, Kota Kinabalu, Sabah, Malaysia
| | - S M Lee
- Tropical Medicine and Biology, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
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15
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KhanYusufzai S, Osman H, Khan MS, Mohamad S, Sulaiman O, Parumasivam T, Gansau JA, Johansah N, Noviany. Design, characterization, in vitro antibacterial, antitubercular evaluation and structure–activity relationships of new hydrazinyl thiazolyl coumarin derivatives. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1820-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Ma XN, Xie CL, Miao Z, Yang Q, Yang XW. An overview of chemical constituents from Alpinia species in the last six decades. RSC Adv 2017. [DOI: 10.1039/c6ra27830b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alpinia species is one of the most important genera of the Zingiberaceae family. Up to 2015, 544 compounds with various bioactivities were isolated, the major components are diarylheptanoids (143) and sesquiterpenoids (132).
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Affiliation(s)
- Xiao-Ni Ma
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Chun-Lan Xie
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Zi Miao
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Quan Yang
- Department of Traditional Chinese Medicine
- Guangdong Pharmaceutical University
- Guangzhou 510006
- China
| | - Xian-Wen Yang
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
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17
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Antibacterial Potential of Diterpenoids. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/b978-0-444-63929-5.00004-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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18
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Yusook K, Weeranantanapan O, Hua Y, Kumkrai P, Chudapongse N. Lupinifolin from Derris reticulata possesses bactericidal activity on Staphylococcus aureus by disrupting bacterial cell membrane. J Nat Med 2016; 71:357-366. [PMID: 28039567 DOI: 10.1007/s11418-016-1065-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 12/08/2016] [Indexed: 10/20/2022]
Abstract
In this study, lupinifolin, a prenylated flavonoid, was isolated from Derris reticulata stem, identified by NMR spectra and confirmed with mass spectrometry. Lupinifolin was freshly prepared by solubilizing in 0.1 N NaOH and immediately diluted in Müller-Hinton broth for antibacterial testing. The data showed that Gram-positive bacteria were more susceptible to lupinifolin than Gram-negative bacteria. Of four strains of Gram-positive bacteria tested, Staphylococcus aureus was the most susceptible. Using the two-fold microdilution method, it was found that lupinifolin possessed antimicrobial activity against S. aureus with minimum inhibitory concentration and minimum bactericidal concentration of 8 and 16 µg/ml, respectively, which is less potent than ampicillin. However, from the time-effect relationship, it was shown that lupinifolin had faster onset than ampicillin. The faster onset of lupinifolin was confirmed by scanning electron microscopy. To investigate the mechanism of action of lupinifolin, transmission electron microscopy (TEM) was performed to observe the ultrastructure of S. aureus. The TEM images showed that lupinifolin ruptured the bacterial cell membrane and cell wall. Due to its fast onset, it is suggested that the action of lupinifolin is likely to be the direct disruption of the cell membrane. This hypothesis was substantiated by the data from flow cytometry using DiOC2 as an indicator. The result showed that the red/green ratio which indicated bacterial membrane integrity was significantly decreased, similar to the known protonophore carbonyl cyanide 3-chlorophenylhydrazone. It is concluded that lupinifolin inhibits the growth of S. aureus by damaging the bacterial cytoplasmic membrane.
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Affiliation(s)
- Kamol Yusook
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Oratai Weeranantanapan
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Yanling Hua
- The Center for Scientific and Technological Equipment, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Pakarang Kumkrai
- Division of Health Promotion, Faculty of Health Science, Srinakharinwirot University, Ongkharak, Nakhon-Nayok, 26120, Thailand
| | - Nuannoi Chudapongse
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
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19
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Biological Evaluation of Terrestrial and Marine Plant Originated Labdane Diterpenes (A Review). Pharm Chem J 2016. [DOI: 10.1007/s11094-016-1490-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Wang D, Lu C, Sun F, Cui M, Mu H, Duan J, Geng H. A tanshinone I derivative enhances the activities of antibiotics against Staphylococcus aureus in vitro and in vivo. Res Microbiol 2016; 168:46-54. [PMID: 27545500 DOI: 10.1016/j.resmic.2016.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/26/2016] [Accepted: 08/05/2016] [Indexed: 11/28/2022]
Abstract
Infections caused by Staphylococcus aureus are prevalent. The dramatically reduced discovery of new antibiotics, as well as the persistent emergence of resistant bacteria, represents a major health problem in both hospital and community settings. Using antibiotic enhancers to rescue existing classes of antibiotics is an attractive strategy. In this study, 16-aldehyde tanshinone I (ALT) was synthesized and bacteriostatic activity was explored. In addition, synergistic or additive activity between ALT and aminoglycoside antibiotics or β-lactam antibiotics in vitro was identified. Moreover, ALT was documented to augment clearance of streptomycin (STR) and ampicillin (AMP) against S. aureus in a murine infection model. Primary mechanistic insight indicated that ALT could damage the bacterial cell membrane, leading to accumulation of antibiotics inside bacterial cells. This finding might be useful for treating infections caused by S. aureus and expand the scope of application of tanshinones.
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Affiliation(s)
- Dongdong Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Chunbo Lu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Feifei Sun
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mingxu Cui
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Haibo Mu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jinyou Duan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Huiling Geng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
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21
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Islam MT, da Mata AMOF, de Aguiar RPS, Paz MFCJ, de Alencar MVOB, Ferreira PMP, de Carvalho Melo-Cavalcante AA. Therapeutic Potential of Essential Oils Focusing on Diterpenes. Phytother Res 2016; 30:1420-44. [PMID: 27307034 DOI: 10.1002/ptr.5652] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 12/20/2022]
Abstract
Among all plant derivates, essential oils (EOs) have gained the attention of many scientists. Diterpenes, a family of components present in some EO, are becoming a milestone in the EOs world. The goal of this review is to describe a scenario of diterpenes taking into health-consumption deportment. Previous studies revealed that diterpenes have antioxidant, antimicrobial, antiviral, antiprotozoal, cytotoxic, anticancer, antigenotoxic, antimutagenic, chemopreventive, antiinflammatory, antinociceptive, immunostimulatory, organoprotective, antidiabetic, lipid-lowering, antiallergic, antiplatelet, antithrombotic, and antitoxin activities. In conclusion, diterpenes may be an immense featuring concern in pharmaceutical consumption from a drug discovery point of view. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Md Torequl Islam
- Northeast Biotechnology Network (RENORBIO), Post-graduation Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil.,Post-graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, 64.049-550, Brazil.,Department of Pharmacy, Southern University Bangladesh, 22-Shahid Mirza Lane (E), Academic Building-II, 1st floor, 739/A, Mehedibag Road, Mehedibag-4000, Chittagong, Bangladesh
| | | | - Raí Pablo Sousa de Aguiar
- Post-graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, 64.049-550, Brazil
| | - Marcia Fernanda Correia Jardim Paz
- Northeast Biotechnology Network (RENORBIO), Post-graduation Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil.,Post-graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, 64.049-550, Brazil
| | - Marcus Vinícius Oliveira Barros de Alencar
- Northeast Biotechnology Network (RENORBIO), Post-graduation Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil.,Post-graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, 64.049-550, Brazil
| | - Paulo Michel Pinheiro Ferreira
- Northeast Biotechnology Network (RENORBIO), Post-graduation Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil.,Post-graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, 64.049-550, Brazil.,Department of Biophysics and Physiology, Federal University of Piauí, Teresina, 64.049-550, Brazil
| | - Ana Amélia de Carvalho Melo-Cavalcante
- Northeast Biotechnology Network (RENORBIO), Post-graduation Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil.,Post-graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, 64.049-550, Brazil
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22
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Synthesis, In silico studies and In vitro evaluation for antioxidant and antibacterial properties of diarylmethylamines: A novel class of structurally simple and highly potent pharmacophore. Eur J Pharm Sci 2016; 88:202-9. [DOI: 10.1016/j.ejps.2016.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 02/11/2016] [Accepted: 03/06/2016] [Indexed: 11/21/2022]
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23
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Unveiling the Mode of Action of Two Antibacterial Tanshinone Derivatives. Int J Mol Sci 2015; 16:17668-81. [PMID: 26263982 PMCID: PMC4581214 DOI: 10.3390/ijms160817668] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 07/17/2015] [Accepted: 07/24/2015] [Indexed: 01/21/2023] Open
Abstract
In this study, 2-(N-pyrrolidine-alkyl) tanshinones bearing pyrrolidine groups were synthesized and the antibacterial mechanism was explored. These derivatives selectively elicited antibacterial activity against Gram-positive bacteria. Moreover, their antibacterial activities were time-, concentration-dependent and persistent. It appeared that Fenton-mediated hydroxyl radicals were involved, and the disruption of cell membranes was observed. This study indicates that 2-(N-pyrrolidine-alkyl) tanshinones might be potential candidates as antibacterial agents.
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24
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Corlay N, Lecsö-Bornet M, Leborgne E, Blanchard F, Cachet X, Bignon J, Roussi F, Butel MJ, Awang K, Litaudon M. Antibacterial Labdane Diterpenoids from Vitex vestita. JOURNAL OF NATURAL PRODUCTS 2015; 78:1348-1356. [PMID: 26034885 DOI: 10.1021/acs.jnatprod.5b00206] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A large-scale in vitro screening of tropical plants using an antibacterial assay permitted the selection of several species with significant antibacterial activities. Bioassay-guided purification of the dichloromethane extract of the leaves of the Malaysian species Vitex vestita, led to the isolation of six new labdane-type diterpenoids, namely, 12-epivitexolide A (2), vitexolides B and C (3 and 4), vitexolide E (8), and vitexolins A and B (5 and 6), along with six known compounds, vitexolides A (1) and D (7), acuminolide (9), 3β-hydroxyanticopalic acid (10), 8α-hydroxyanticopalic acid (11), and 6α-hydroxyanticopalic acid (12). Their structures were elucidated on the basis of 1D and 2D NMR analyses and HRMS experiments. Both variable-temperature NMR spectroscopic studies and chemical modifications were performed to investigate the dynamic epimerization of the γ-hydroxybutenolide moiety of compounds 1-4. Compounds were assayed against a panel of 46 Gram-positive strains. Vitexolide A (1) exhibited the most potent antibacterial activity with minimal inhibitory concentration values ranging from 6 to 96 μM, whereas compounds 2 and 6-9 showed moderate antibacterial activity. The presence of a β-hydroxyalkyl-γ-hydroxybutenolide subunit contributed significantly to antibacterial activity. Compounds 1-4 and 6-9 showed cytotoxic activities against the HCT-116 cancer cell line (1 < IC50s < 10 μM) and human fetal lung fibroblast MRC5 cell line (1 < IC50s < 10 μM for compounds 1, 2, 7, 8, and 9).
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Affiliation(s)
- Nina Corlay
- †Centre de Recherche de Gif, LabEx CEBA, Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, 91198 Gif-sur-Yvette, France
| | | | - Erell Leborgne
- †Centre de Recherche de Gif, LabEx CEBA, Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, 91198 Gif-sur-Yvette, France
| | - Florent Blanchard
- †Centre de Recherche de Gif, LabEx CEBA, Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, 91198 Gif-sur-Yvette, France
| | - Xavier Cachet
- †Centre de Recherche de Gif, LabEx CEBA, Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, 91198 Gif-sur-Yvette, France
| | - Jérôme Bignon
- †Centre de Recherche de Gif, LabEx CEBA, Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, 91198 Gif-sur-Yvette, France
| | - Fanny Roussi
- †Centre de Recherche de Gif, LabEx CEBA, Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, 91198 Gif-sur-Yvette, France
| | | | - Khalijah Awang
- ∥Department of Chemistry, University Malaya, 59100 Kuala Lumpur, Malaysia
| | - Marc Litaudon
- †Centre de Recherche de Gif, LabEx CEBA, Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, 91198 Gif-sur-Yvette, France
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25
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Abu Ahmed AM, Sharmen F, Mannan A, Rahman MA. Phytochemical, analgesic, antibacterial, and cytotoxic effects of Alpinia nigra (Gaertn.) Burtt leaf extract. J Tradit Complement Med 2015; 5:248-52. [PMID: 26587396 PMCID: PMC4624352 DOI: 10.1016/j.jtcme.2014.11.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 06/01/2014] [Accepted: 09/04/2014] [Indexed: 11/08/2022] Open
Abstract
This research evaluated the phytochemical contents as well as the analgesic, cytotoxic, and antimicrobial effects of the methanolic extract of Alpinia nigra leaf. Phytochemical analysis was carried out using established methods. The analgesic effects of the extract were measured with the formalin test and tail immersion test. The antibacterial activity of the extract was evaluated using the disc diffusion technique. Cytotoxicity was assessed with the brine shrimp lethality bioassay. Data were analyzed with one-way analysis of variance using statistical software (SPSS, Version 19.0). The qualitative phytochemical screening of A. nigra leaf extract showed the presence of medicinally active secondary metabolites such as alkaloids, glycosides, cardiac glycosides, flavonoids, steroids, tannins, anthraquinone glycosides, and saponins. The extract at a dose of 200 mg/kg revealed a prevailed central nociception increasing the reaction time in response to thermal stimulation. The extract also showed a response to chemical nociceptors, causing pain inhibition in the late phase. The leaf extract (2 mg/disc) showed mild antibacterial activity compared to tetracycline (50 μg/disc). In the brine shrimp lethality bioassay, the LC50 (lethal concentration 50) value of the extract was found to be 57.12 μg/mL, implying a promising cytotoxic effect. The results evidenced the moderate analgesic and antibacterial effects with pronounced cytotoxic capability.
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Affiliation(s)
- A M Abu Ahmed
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Farjana Sharmen
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Adnan Mannan
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong 4331, Bangladesh
| | - Md Atiar Rahman
- Department of Biochemistry and Molecular Biology, University of Chittagong, Chittagong 4331, Bangladesh
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26
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Abstract
This review covers the isolation and chemistry of diterpenoids from terrestrial as opposed to marine sources and includes labdanes, clerodanes, pimaranes, abietanes, kauranes, gibberellins, cembranes and their cyclization products. The literature from January to December 2013 is reviewed.
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27
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Ghosh S, Rangan L. Molecular docking and inhibition kinetics of α-glucosidase activity by labdane diterpenes isolated from tora seeds (Alpinia nigra B.L. Burtt.). Appl Biochem Biotechnol 2014; 175:1477-89. [PMID: 25410799 DOI: 10.1007/s12010-014-1366-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 11/10/2014] [Indexed: 10/24/2022]
Abstract
Current approach against type 2 diabetes involves α-glucosidase inhibitors like acarbose associated with many side effects. Therefore, as an alternative to the existing drug, many natural products mainly from plant sources have been investigated which inhibit α-glucosidase. Here, we have selected medicinally important Alpinia nigra to explore its α-glucosidase inhibitory activity. Organic extracts of seeds and two purified natural diterpenes I: (E)-labda-8(17), 12-diene-15, 16-dial and II: (E)-8β, 17-epoxylabd-12-ene-15, 16-dial from A. nigra were investigated towards inhibition of α-glucosidase activity. Dose-dependent inhibition pattern were observed for seed extracts and both the compounds. Further, inhibition kinetics studies of the diterpenes indicated a non-competitive type of inhibition against α-glucosidase. Docking studies were carried out which revealed that both the diterpenes interacted within the active site of N-terminal and C-terminal domain of human maltase-glucoamylase enzyme, respectively. This is the first report of α-glucosidase inhibitory activity of these isolated diterpenes and their higher inhibitory potential than any terpenoids studied till date against α-glucosidase.
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Affiliation(s)
- Sudipta Ghosh
- Department of Biotechnology, Indian Institute of Technology Guwahati, Assam, 781039, India,
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28
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Applications of flow cytometry to characterize bacterial physiological responses. BIOMED RESEARCH INTERNATIONAL 2014; 2014:461941. [PMID: 25276788 PMCID: PMC4174974 DOI: 10.1155/2014/461941] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/13/2014] [Accepted: 08/13/2014] [Indexed: 12/30/2022]
Abstract
Although reports of flow cytometry (FCM) applied to bacterial analysis are increasing, studies of FCM related to human cells still vastly outnumber other reports. However, current advances in FCM combined with a new generation of cellular reporter probes have made this technique suitable for analyzing physiological responses in bacteria. We review how FCM has been applied to characterize distinct physiological conditions in bacteria including responses to antibiotics and other cytotoxic chemicals and physical factors, pathogen-host interactions, cell differentiation during biofilm formation, and the mechanisms governing development pathways such as sporulation. Since FCM is suitable for performing studies at the single-cell level, we describe how this powerful technique has yielded invaluable information about the heterogeneous distribution of differently and even specialized responding cells and how it may help to provide insights about how cell interaction takes place in complex structures, such as those that prevail in bacterial biofilms.
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29
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Ghosh S, Rangan L. Molecular docking and inhibition studies of α-amylase activity by labdane diterpenes from Alpinia nigra seeds. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1056-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Antimicrobial activity of coronarin D and its synergistic potential with antibiotics. BIOMED RESEARCH INTERNATIONAL 2014; 2014:581985. [PMID: 24949458 PMCID: PMC4053275 DOI: 10.1155/2014/581985] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 04/29/2014] [Indexed: 11/18/2022]
Abstract
Coronarin D is a labdane-type diterpene from the rhizomes of Hedychium coronarium. In the view of our ongoing effort to explore its novel biological activity, antimicrobial activity study of coronarin D was performed. The results showed that coronarin D was active against tested Gram-positive bacteria, inactive for tested Gram-negative bacteria, and weakly active against tested fungi. The antibacterial effect of the combination of coronarin D with nine classical antibiotics against four Gram-positive bacteria was also evaluated. The fractional inhibitory concentration indices (FICI) of coronarin D-antibiotics combinations, calculated from the checkerboard assay, were used as synergism indicator. Out of 36 combinations, 47% showed total synergism, 33% had partial synergistic interaction, 17% showed no effect, and 3% showed antagonism. By combination with coronarin D at concentration of 0.25 minimal inhibitory concentration (MIC), the activities of antibiotics were boosted to 4- to 128-fold. These finding suggested an attractive approach to combat the infectious diseases by using coronarin D-antibiotic drug combination.
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