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Abbas Z, Mustafa S, Khan MF, Khan MA, Massey S, Dev K, Khan A, Parveen S, Husain SA. Therapeutic importance of Kigelia africana subsp. africana: an alternative medicine. Nat Prod Res 2023:1-15. [PMID: 37921076 DOI: 10.1080/14786419.2023.2273914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 10/15/2023] [Indexed: 11/04/2023]
Abstract
AIM To summarise a detailed up-to-date review of the traditional uses, phytoconstituents, and pharmacological activities of various parts of Kigelia africana. MATERIALS AND METHODS Google Scholar, PubMed, PubChem, Elsevier, King Draw, indianbiodiversity.org. RESULT The phytochemical analysis of Kigelia africana subsp. africana has revealed the presence of approximately 145 compounds extracted from different parts of the plant. These bioactive extracts of the plant possess anti-inflammatory, antioxidant, antimicrobial, antidiabetic, antineoplastic, and anti-urolithic activities. Due to its anti-inflammatory, antioxidant, and immune-booster properties, Kigelia can prove to be an essential source of drugs for treating various disorders. CONCLUSION Knowledge of the phytoconstituents, non-medicinal and medicinal traditional uses, pharmacological activities, and products obtained from Kigelia is described in this review with the hope that the updated findings will promote research on its biological pathways.
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Affiliation(s)
- Zahra Abbas
- Department of Biosciences, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
| | - Saad Mustafa
- Department of Biosciences, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
- Deen Dayal Upadhyay Kaushal Kendra, Jamia Millia Islamia, New Delhi, India
| | - Mohd Faisal Khan
- Department of Biotechnology, Medical Biotechnology Laboratory, Jamia Millia Islamia, New Delhi, India
| | - Mohammad Aasif Khan
- Department of Biosciences, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
| | - Sheersh Massey
- Department of Biosciences, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
| | - Kapil Dev
- Department of Biotechnology, Medical Biotechnology Laboratory, Jamia Millia Islamia, New Delhi, India
| | - Asifa Khan
- Department of Biosciences, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
| | - Shabana Parveen
- Department of Biosciences, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
| | - Syed Akhtar Husain
- Department of Biosciences, Human Genetics Laboratory, Jamia Millia Islamia, New Delhi, India
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Antioxidant, Anti-Cancer Activity and Phytochemicals Profiling of Kigelia pinnata Fruits. SEPARATIONS 2022. [DOI: 10.3390/separations9110379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Over the past few years, research studies on the therapeutic benefits of medicinal plants with potent antioxidant activity and few side effects have grown significantly. This has sparked interest in determining whether naturally occurring antioxidants could take the place of synthetic antioxidants, which are currently being constricted because of their toxic and carcinogenic properties. The identification and quantification of phytochemicals in the methanolic extract of Kigelia pinnata fruits was measured using gas chromatography–mass spectrometry (GC-MS) and ultra-high-performance liquid chromatography–mass spectrometry (UPLC-MS/MS) techniques. Additionally, the methanolic extract of fruits was used to determine antioxidant activity. Free radical-scavenging (DPPH) and ferric ion-reducing antioxidant power were measured using spectrophotometry, and total antioxidant capacity (TAC) was compared with two common antioxidants, vitamin C and α-tocopherol. Moreover, mature fruits have high DDPH, ferric ion-reducing antioxidant power and total antioxidant capacity. Furthermore, mature fruits have high levels of total phenolic, flavonoid, and tannin content; these compounds are thought to be the sources of the antioxidant activity. The major constituents of the methanolic extracts from the mature fruits of K. pinnata were found to be larixinic acid, 3,5-Dihydroxy-6-methyl-2,3-dihydro-4H-pyran-4-one (DMDP), and 5-Hydrxoymethylfurfural. We performed the elemental analysis of the whole fruit. Huh-7 (liver cancer), PANC-1 (pancreatic cancer), Colo-205 (colorectal cancer), HT-29 (colorectal cancer), SNU-16 (gastric carcinoma), SW620 (colorectal adenocarcinoma) and HCT116 (colon carcinoma) were tested in vitro for anticancer activity. Both methanolic and ethyl acetate extracts of mature fruits had a positive effect on all cancer cell lines as compared to the doxorubicin drug. In addition, the methanolic extracts of mature fruits showed more potent cytotoxic effects than the ethyl acetate extracts. Moreover, the most pronounced cytotoxic effects of the methanolic extract were detected in SW620 (colorectal adenocarcinoma), with an IC50 value of 6.79 μg/mL, SNU-16 (gastric carcinoma), with and IC50 value of 8.69 μg/ ml, and in PANC-1 (pancreatic cancer) with an IC50 value of 10.34 μg/mL. Moreover, the results show that the water, ethyl acetate and methanolic extracts of mature fruits have antioxidant capacity, ferric ion-reducing antioxidant power, DPPH scavenging activity and also anticancer activity. Therefore, the present study suggests that the phytochemical profiles of mature fruits of K. pinnata may be used as potential natural antioxidants and anti-cancer cell lines.
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Falode JA, Akinmoladun AC, Olaleye MT, Akindahunsi AA. Kigelia africana (Lam.) Benth leaf extract inhibits rat brain and liver mitochondrial membrane permeability transition pore opening. Drug Chem Toxicol 2020; 45:1614-1624. [PMID: 33280443 DOI: 10.1080/01480545.2020.1850757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The effect of Kigelia africana on mitochondrial membrane permeability transition has not been explored. In this study, the effect of a solvent fraction of Kigelia africana leaf extract on mitochondrial membrane permeability transition of rat brain and liver was evaluated. A methanol extract of K. africana leaves was fractionated into different solvents by vacuum liquid chromatography and following preliminary screening, the dichloromethane:ethylacetate (1:1) fraction was selected for further assays. Constituent phytochemicals in the fraction were revealed by thin-layer chromatography and further purification was carried out to characterize the compounds. Brain and liver mitochondria were isolated and used for mitochondrial membrane permeability transition and adenosine triphosphatase assays. Exogenous Ca2+ and Al3+ were used to trigger the mitochondrial membrane permeability transition opening. Physicochemical properties revealed by thin-layer chromatography showed that the isolated compounds were flavonoids. The extract inhibited mitochondrial membrane permeability transition opening in the presence and absence of triggering agents in brain and liver mitochondria. It also inhibited mitochondrial lipid peroxidation and adenosine triphosphatase activity. These results suggest that the extract can limit the rate of apoptosis via inhibition of mitochondrial membrane permeability transition which is pivotal to the mitochondrial apoptotic pathway and is an important therapeutic target in some pathological conditions.
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Affiliation(s)
- John Adeolu Falode
- Phytomedicine, Biochemical Pharmacology and Toxicology Unit, Department of Biochemistry, Federal University, Oye-Ekiti, Nigeria.,Phytomedicine, Biochemical Pharmacology and Toxicology Unit, Department of Biochemistry, School of Sciences, The Federal University of Technology, Akure, Nigeria
| | - Afolabi Clement Akinmoladun
- Phytomedicine, Biochemical Pharmacology and Toxicology Unit, Department of Biochemistry, School of Sciences, The Federal University of Technology, Akure, Nigeria
| | - Mary Tolulope Olaleye
- Phytomedicine, Biochemical Pharmacology and Toxicology Unit, Department of Biochemistry, School of Sciences, The Federal University of Technology, Akure, Nigeria
| | - Afolabi Akintunde Akindahunsi
- Phytomedicine, Biochemical Pharmacology and Toxicology Unit, Department of Biochemistry, School of Sciences, The Federal University of Technology, Akure, Nigeria
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Nabatanzi A, M. Nkadimeng S, Lall N, Kabasa JD, J. McGaw L. Ethnobotany, Phytochemistry and Pharmacological Activity of Kigelia africana (Lam.) Benth. (Bignoniaceae). PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9060753. [PMID: 32549404 PMCID: PMC7356732 DOI: 10.3390/plants9060753] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/20/2020] [Accepted: 05/23/2020] [Indexed: 01/07/2023]
Abstract
Kigelia africana has been used in the management of human ailments since time immemorial. Ethnobotanists have documented the traditional uses of K. africana, which include treatment of skin disorders, cancer and gynecological complaints, among others. This has interested scientists, who have examined K. africana plant parts for their bioactivity. This review provides an insightful understanding on the ethnobotany, phytochemistry and pharmacology of K. africana. Web search engines Google and Google Scholar, as well as the databases of PubMed, Scopus, JSTOR, HINARI, SID, AJOL and Springer Link, were exhaustively searched using key words and phrases. Institutional reports and conference papers were also consulted. A total of 125 relevant international literature sources meeting the inclusion criteria were included. Kigelia africana has biologically active phytochemicals, many of which have been isolated. Whilst the fruits are most often cited in pharmacological studies, other plant parts are also used in herbal preparations. Commercially available products have been formulated from K. africana, though many have not been fully standardized. Despite many efforts by researchers to scientifically validate traditional uses of K. africana, many remain merely claims, thus the need to conduct more research, scientifically validate other traditional uses, isolate new bioactive phytochemicals and standardize K. africana products.
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Affiliation(s)
- Alice Nabatanzi
- Department of Plant Sciences, Microbiology and Biotechnology, College of Natural Sciences, Makerere University, Kampala 00256, Uganda
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa; (S.M.N.); (L.J.M.)
- Department of Plant and Soil Sciences, University of Pretoria, Hatfield 0028, South Africa;
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala 00256, Uganda;
- Future Africa, University of Pretoria, Hatfield 0028, South Africa
- Correspondence: or ; Tel.: +256-782-036497
| | - Sanah M. Nkadimeng
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa; (S.M.N.); (L.J.M.)
| | - Namrita Lall
- Department of Plant and Soil Sciences, University of Pretoria, Hatfield 0028, South Africa;
- School of Natural Resources, University of Missouri, Columbia, MO 65211, USA
- College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru, Karnataka 570015, India
| | - John D. Kabasa
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala 00256, Uganda;
| | - Lyndy J. McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa; (S.M.N.); (L.J.M.)
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Abstract
The paper is a compilation of the studies reported in the literature concerning non-nitrogenous natural constituents that have shown antiplasmodial activity and aims to provide a basis for further in vivo studies as well as for clinical trials to develop new antimalarial agents. Due to the increasingly unsatisfactory outcomes for N-heterocyclic drugs, coupled with the rising incidence of the deadly falciparum malaria, the advent of non-nitrogenous lead compounds is timely, signaling a new era of antimalarial chemotherapy. Currently a few non-nitrogenous molecules are used in therapy, but many promising molecules of plant origin are under study, such as peroxide sesquiterpenes, quinoid triterpenes, quassinoids, gallic acid derivatives, lignans, flavonoids and biflavonoids, xanthones, naphthoquinones and phenylanthraquinones. Many of these constituents are isolated from plants used traditionally to treat malaria and fever. Ethnopharmacology can still be considered as a rich source of lead molecules.
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Affiliation(s)
- Anna Rita Bilia
- Department of Pharmaceutical Sciences, University of Florence, via Ugo Schiff, 6, Sesto Fiorentino-50019-Florence, Italy
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Quinonoid compounds via reactions of lawsone and 2-aminonaphthoquinone with α-bromonitroalkenes and nitroallylic acetates: Structural diversity by C-ring modification and cytotoxic evaluation against cancer cells. Eur J Med Chem 2018; 151:686-704. [DOI: 10.1016/j.ejmech.2018.03.079] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 12/17/2022]
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Sausage tree ( Kigelia africana ) flavonoid extract is neuroprotective in AlCl 3 -induced experimental Alzheimer’s disease. PATHOPHYSIOLOGY 2017; 24:251-259. [DOI: 10.1016/j.pathophys.2017.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 06/09/2017] [Accepted: 06/20/2017] [Indexed: 12/31/2022] Open
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Ramakrishna E, Dev K, Kothari P, Tripathi AK, Trivedi R, Maurya R. Phytochemical investigation of Kigelia pinnata leaves and identification of osteogenic agents. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1807-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Kumar BS, Ravi K, Verma AK, Fatima K, Hasanain M, Singh A, Sarkar J, Luqman S, Chanda D, Negi AS. Synthesis of pharmacologically important naphthoquinones and anticancer activity of 2-benzyllawsone through DNA topoisomerase-II inhibition. Bioorg Med Chem 2017; 25:1364-1373. [DOI: 10.1016/j.bmc.2016.12.043] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 12/24/2016] [Accepted: 12/26/2016] [Indexed: 01/15/2023]
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Bello I, Shehu MW, Musa M, Zaini Asmawi M, Mahmud R. Kigelia africana (Lam.) Benth. (Sausage tree): Phytochemistry and pharmacological review of a quintessential African traditional medicinal plant. JOURNAL OF ETHNOPHARMACOLOGY 2016; 189:253-276. [PMID: 27220655 DOI: 10.1016/j.jep.2016.05.049] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 05/17/2016] [Accepted: 05/20/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kigelia africana is a quintessential African herbal medicinal plant with a pan-African distribution and immense indigenous medicinal and non-medicinal applications. The plant is use traditionally as a remedy for numerous disease such as use wounds healing, rheumatism, psoriasis, diarrhea and stomach ailments. It is also use as an aphrodisiac and for skin care. AIM OF THE REVIEW The present review aims to compile an up-to-date review of the progress made in the continuous pharmacological and phytochemistry investigation of K. africana and the corresponding commercial and pharmaceutical application of these findings with the ultimate objective of providing a guide for future research on this plant. METHOD The scholarly information needed for this paper were predominantly sourced from the electronic search engines such as Google, Google scholar; publishing sites such as Elsevier, scienceDirect, BMC, PubMed; other scientific database sites for chemicals such as ChemSpider, PubChem, and also from online books. RESULTS Pharmacological investigations conducted confirm the anti-inflammatory, analgesic, antioxidant and anticancer activity of the extract of different parts of the plant. Bioactive constituents are found to be present in all parts of the plant. So far, approximately 150 compounds have been characterized from different part of the plant. Iridoids, naphthoquinones, flavonoids, terpenes and phenylethanoglycosides are the major class of compounds isolated. Novel compounds with potent antioxidant, antimicrobial and anticancer effect such as verbascoside, verminoside and pinnatal among others, have been identified. Commercial trade of K. africana has boosted in the las few decades. Its effect in the maintenance of skin has been recognized resulting in a handful of skin formulations in the market. CONCLUSIONS The pharmaceutical potentials of K. africana has been recognized and have witness a surge in research interest. However, till date, many of its traditional medicinal uses has not been investigated scientifically. Further probing of the existential researches on its pharmacological activity is recommended with the end-goal of unravelling the pharmacodynamics, pharmacokinetics, clinical relevance and possible toxicity and side effects of both the extract and the active ingredients isolated.
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Affiliation(s)
- Idris Bello
- Department of Pharmacology, School of Pharmaceutical Sciences, University Sains Malaysia, 11800 Pulau Pinang, Malaysia.
| | - Mustapha W Shehu
- Department of Environmental Science, Faculty of Science, Islamic University, Uganda
| | | | - Mohd Zaini Asmawi
- Department of Pharmacology, School of Pharmaceutical Sciences, University Sains Malaysia, 11800 Pulau Pinang, Malaysia
| | - Roziahanim Mahmud
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Universiti Sains Malaysia (USM), 11800 Pulau Pinang, Malaysia
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12
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Ntie-Kang F, Onguéné PA, Lifongo LL, Ndom JC, Sippl W, Mbaze LM. The potential of anti-malarial compounds derived from African medicinal plants, part II: a pharmacological evaluation of non-alkaloids and non-terpenoids. Malar J 2014; 13:81. [PMID: 24602358 PMCID: PMC3975711 DOI: 10.1186/1475-2875-13-81] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 02/25/2014] [Indexed: 11/10/2022] Open
Abstract
Malaria is currently a public health concern in many countries in the world due to various factors which are not yet under check. Drug discovery projects targeting malaria often resort to natural sources in the search for lead compounds. A survey of the literature has led to a summary of the major findings regarding plant-derived compounds from African flora, which have shown anti-malarial/antiplasmodial activities, tested by in vitro and in vivo assays. Considerations have been given to compounds with activities ranging from "very active" to "weakly active", leading to >500 chemical structures, mainly alkaloids, terpenoids, flavonoids, coumarins, phenolics, polyacetylenes, xanthones, quinones, steroids and lignans. However, only the compounds that showed anti-malarial activity, from "very active" to "moderately active", are discussed in this review.
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Affiliation(s)
| | | | | | | | | | - Luc Meva'a Mbaze
- Department of Chemistry, Faculty of Science, University of Douala, PO Box 24157, Douala, Cameroon.
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Atolani O, Olatunji GA, Fabiyi OA, Adeniji AJ, Ogbole OO. Phytochemicals from Kigelia pinnata Leaves Show Antioxidant and Anticancer Potential on Human Cancer Cell Line. J Med Food 2013; 16:878-85. [DOI: 10.1089/jmf.2012.0249] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Olubunmi Atolani
- Department of Chemical Sciences, Redeemer's University, Mowe, Nigeria
- Department of Chemistry, University of Ilorin, Ilorin, Nigeria
| | | | | | - Adekunle J. Adeniji
- Department of Virology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Omonike O. Ogbole
- Department of Pharmacognosy, College of Medicine, University of Ibadan, Ibadan, Nigeria
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Lezama-Dávila CM, Isaac-Márquez AP, Kapadia G, Owens K, Oghumu S, Beverley S, Satoskar AR. Leishmanicidal activity of two naphthoquinones against Leishmania donovani. Biol Pharm Bull 2013; 35:1761-4. [PMID: 23037165 DOI: 10.1248/bpb.b12-00419] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Here we studied ability of two naphthoquinones to inhibit Leishmania growth (2,3-dichloro-5,8-dihydroxy-1,4-naphthoquinone (TR 001) and 2,3-dibromo-1,4-naphthoquinone (TR 002). TR 001 was more efficient than TR 002 in inducing killing of promastigotes and intracellular amastigotes. These values compare well to those obtained with the standard first-line antileishmanial agent sodium stibogluconate (SSG). TR 001 also induced significantly more nitric oxide (NO) production than TR 002 or SSG. Taken together, these data show that TR 001 and TR 002 could be promising new drugs for treatment of visceral leishmaniasis.
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Choomuenwai V, Andrews KT, Davis RA. Synthesis and antimalarial evaluation of a screening library based on a tetrahydroanthraquinone natural product scaffold. Bioorg Med Chem 2012; 20:7167-74. [DOI: 10.1016/j.bmc.2012.09.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 09/18/2012] [Accepted: 09/25/2012] [Indexed: 10/27/2022]
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Khan MF, Dixit P, Jaiswal N, Tamrakar AK, Srivastava AK, Maurya R. Chemical constituents of Kigelia pinnata twigs and their GLUT4 translocation modulatory effect in skeletal muscle cells. Fitoterapia 2011; 83:125-9. [PMID: 22037422 DOI: 10.1016/j.fitote.2011.10.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 10/03/2011] [Accepted: 10/08/2011] [Indexed: 11/17/2022]
Abstract
Phytochemical investigation of the ethanolic extract of twigs of Kigelia pinnata DC. afforded one new iridoid 7-hydroxy eucommiol (1), and nine known compounds (2-10). The structure of compounds was elucidated by extensive spectroscopic methods, including 1D, 2D NMR experiments and MS analysis. All these compounds were evaluated for GLUT4 translocation modulatory effect in skeletal muscle cells. Four of the tested compounds 1, 5, 6 and 7 showed significant stimulation of GLUT4 translocation to cell surface in skeletal muscle cells without any adverse effect on cell viability. Effect of these four compounds was concentration-dependent and comparable to standard drug rosiglitazone. These findings indicate that constituents of K. pinnata may provide leads for the therapeutics for insulin resistance and diabetes.
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Affiliation(s)
- Mohammad Faheem Khan
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226 001, India
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González-Coloma A, Reina M, Sáenz C, Lacret R, Ruiz-Mesia L, Arán VJ, Sanz J, Martínez-Díaz RA. Antileishmanial, antitrypanosomal, and cytotoxic screening of ethnopharmacologically selected Peruvian plants. Parasitol Res 2011; 110:1381-92. [DOI: 10.1007/s00436-011-2638-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 09/02/2011] [Indexed: 11/28/2022]
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Martey ONK, Armah G, Okine LKNA. Absence of organ specific toxicity in rats treated with Tonica, an aqueous herbal haematinic preparation. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2010; 7:231-40. [PMID: 21461151 DOI: 10.4314/ajtcam.v7i3.54781] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The sub-chronic toxicity of Tonica, an aqueous herbal haematinic prepared from the stem barks of Khaya senegalensis, Mitragyna stipulosa and Kigelia africana, was investigated in male Sprague-Dawley rats at 28, 280 and 560 mg kg(-1) day(-1), representing the normal human dose, 10x and 20x that dose, respectively for 6 weeks. The growth rate of animals over the period of treatment and certain serum biochemical and haematological indices as well as urinalysis and weight of selected organs at termination, were determined. Results show that the extract did not affect the weight gain of the animals with time or the mean wet weights of selected organs. Although there were slight but insignificant (p>0.05) elevations in WBC (16-27%) and PLT (8-11%) counts in Tonica-treated animals compared to controls at 10x and 20x the normal dose, most serum biochemical, haematological and urinalysis data indicated no significant differences (p>0.05) between tests and control rats. There were also no changes in the morphology of liver, kidney, lung and heart tissues as a result of Tonica treatment. These findings suggest that Tonica is safe at the dosage regimens administered to the animals in this study, and there appears to be no overt organ specific toxicity associated with it.
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Kaur K, Jain M, Kaur T, Jain R. Antimalarials from nature. Bioorg Med Chem 2009; 17:3229-56. [DOI: 10.1016/j.bmc.2009.02.050] [Citation(s) in RCA: 228] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 02/20/2009] [Accepted: 02/23/2009] [Indexed: 10/21/2022]
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Gouda YG, Abdel-Baky AM, Mohamed KM, Darwish FM, Kasai R, Yamasaki K. Phenylpropanoid and phenylethanoid derivatives from Kigelia pinnata DC. fruits. Nat Prod Res 2006; 20:935-9. [PMID: 16854722 DOI: 10.1080/14786410500462702] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Further phytochemical investigation of the fruits of Kigelia pinnata DC. has yielded a new phenylpropanoid derivative identified as 6-p-coumaroyl-sucrose (1) together with ten known phenylpropanoid and phenylethanoid derivatives (2-11) and a flavonoid glycoside (12). The structures of the isolated compounds were elucidated using various techniques of NMR and MS spectral analysis.
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Affiliation(s)
- Yaser G Gouda
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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21
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Sandberg F, Perera-Ivarsson P, El-Seedi HR. A Swedish collection of medicinal plants from Cameroon. JOURNAL OF ETHNOPHARMACOLOGY 2005; 102:336-43. [PMID: 16098698 DOI: 10.1016/j.jep.2005.06.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2003] [Revised: 06/01/2005] [Accepted: 06/16/2005] [Indexed: 05/04/2023]
Abstract
A collection of 32 botanically identified medicinal plants from the slopes of Mt. Cameroon made by two Swedish settlers in the beginning of the last century is described and the literature is followed up. The drug names were found to be unaltered during the century passed.
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Affiliation(s)
- Finn Sandberg
- Division of Pharmacognosy, Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, Sweden.
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Malerich JP, Maimone TJ, Elliott GI, Trauner D. Biomimetic synthesis of antimalarial naphthoquinones. J Am Chem Soc 2005; 127:6276-83. [PMID: 15853334 DOI: 10.1021/ja050092y] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The total synthesis of naphthoquinone natural products isolated from the Bignoniaceae plant family is described. Pinnatal, isopinnatal, sterekunthals A and B, pyranokunthones A and B, and anthrakunthone have been prepared along the lines of a biosynthetic proposal involving pericyclic reactions as key steps. The first case of catalysis in oxa 6pi electrocyclizations is reported.
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Affiliation(s)
- Jeremiah P Malerich
- Department of Chemistry, University of California-Berkeley, Berkeley, California 94720-1460, USA
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Hong BC, Chen FL, Chen SH, Liao JH, Lee GH. Intramolecular Diels−Alder Cycloadditions of Fulvenes. Application to the Kigelinol, Neoamphilectane, and Kempane Skeletons. Org Lett 2005; 7:557-60. [PMID: 15704893 DOI: 10.1021/ol047730m] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A variety of polycyclic ring skeletons (e.g., kigelinol, neoamphilectane, and kempene systems) can be prepared rapidly via intramolecular Diels-Alder cycloadditions (IMDA) of fulvenes. The length of the tethers and the diversity of the substituents on the fulvene core dictate the nature of the IMDA pathway. [reaction: see text]
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Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry, National Chung Cheng University, Chia-Yi, 621 Taiwan, R.O.C.
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Gouda YG, Abdel-baky AM, Darwish FM, Mohamed KM, Kasai R, Yamasaki K. Iridoids from Kigelia pinnata DC. fruits. PHYTOCHEMISTRY 2003; 63:887-892. [PMID: 12895535 DOI: 10.1016/s0031-9422(03)00262-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
From the fruits of Kigelia pinnata DC., a new furanone derivative formulated as 3-(2'-hydroxyethyl)-5-(2"-hydroxypropyl)-dihydrofuran-2(3H)-one (1), and four new iridoids named; 7-hydroxy viteoid II (2), 7-hydroxy eucommic acid (3), 7-hydroxy-10-deoxyeucommiol (4) and 10-deoxyeucommiol (5) have been isolated together with seven known iridoids, jiofuran (6), jioglutolide (7), 1-dehydroxy-3,4-dihydroaucubigenin (8), des-p-hydroxybenzoyl kisasagenol B (9), ajugol (10), verminoside (11) and 6-trans-caffeoyl ajugol (12). The structures of the isolated compounds were characterized by different spectroscopic methods.
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Affiliation(s)
- Yaser G Gouda
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
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Abstract
Natural products are not only the basis for traditional or ethnic medicine. Only recently, they have provided highly successful new drugs such as Artemisinin. Furthermore, screening natural products found in all sorts of environments such as the deep sea, rain forests and hot springs, and produced by all sorts of organisms ranging from bacteria, fungi and plants to protozoa, sponges and invertebrates, is a highly competitive field where all of the major pharmaceutical companies are encountered. Already, many new natural product groups have revealed antiparasitic properties of surprising efficacy and selectivity, as will be shown in this review for plant-derived alkaloids, terpenes and phenolics. Many novel lead structures, however, have severe chemico-physical drawbacks such as poor solubility. Here, innovative drug formulations and carrier systems might help, as discussed by the authors in another article of this series.
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Affiliation(s)
- O Kayser
- Freie Universität Berlin, Institut für Pharmazie, Pharmazeutische Biotechnologie, Kelchstrasse 31, 12169 Berlin, Germany.
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Onegi B, Kraft C, Köhler I, Freund M, Jenett-Siems K, Siems K, Beyer G, Melzig MF, Bienzle U, Eich E. Antiplasmodial activity of naphthoquinones and one anthraquinone from Stereospermum kunthianum. PHYTOCHEMISTRY 2002; 60:39-44. [PMID: 11985850 DOI: 10.1016/s0031-9422(02)00072-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A lipophilic extract of the root bark of Stereospermum kunthianum revealed antiplasmodial activity in vitro. Bioassay-guided fractionation led to the isolation of four novel naphthoquinones (sterekunthals A and B, pyranokunthones A and B) and one novel anthraquinone (anthrakunthone) together with the known naphthoquinone pinnatal. The structures of the novel compounds were determined by comprehensive analyses of their 1D and 2D NMR data. The antiplasmodial activities and toxicity against the endothelial cell line ECV-304 of the isolated compounds have been assessed.
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Affiliation(s)
- Bernardina Onegi
- Department of Pharmacy (Pharmacognosy Unit), Makerere University, Kampala, Uganda
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