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Rodrigues FC, Morais-Braga MFB, Almeida-Bezerra JW, Bezerra JJL, Fonseca VJA, de Araújo ACJ, Coutinho HDM, Ribeiro PRV, Canuto KM, Mendonça ACAM, de Oliveira AFM. Chemical composition and antimicrobial activity of Cordiera myrciifolia leaves against pathogenic bacteria and fungi: Drug potentiation ability and inhibition of virulence. Fitoterapia 2024; 176:106027. [PMID: 38777073 DOI: 10.1016/j.fitote.2024.106027] [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: 02/05/2024] [Revised: 04/26/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024]
Abstract
Cordiera myrciifolia is an abundant species in Northeast Brazil that presents metabolites of biological/therapeutic interest. From this perspective, the present study aimed to investigate the chemical constituents and evaluate the in vitro antimicrobial activity of hexane (HECM) and ethanolic (EECM) extracts of C. myrciifolia leaves. The extracts were analyzed by chromatographic techniques (GC and UPLC) coupled with mass spectrometry. The antimicrobial activity of the extracts and the extracts combined with conventional drugs was evaluated by microdilution. The in vitro effect of the treatments on Candida's morphological transition was verified through cultivation in humid chambers. In HECM, 11 constituents including fatty acids, and triterpenes, including phytosterols, alkanes, tocols, and primary alcohols were identified. Triterpenes represented >40% of the identified constituents, with Lupeol being the most representative. In EECM, 13 constituents were identified, of which eight belonged to the class of flavonoids. High antibacterial activity of HECM was detected against Escherichia coli and Staphylococcus aureus, with Minimum Inhibitory Concentrations of 8 and 16 μg/mL, respectively. The combined activity was more effective when combined with Norfloxacin and Imipenem. In anti-Candida activity, the IC50 of the extracts ranged from 36.6 to 129.1 μg/mL. There was potentiating effect when associated with Fluconazole. Both extracts inhibited the filamentous growth of C. tropicalis at a concentration of 512 μg/mL. C. myrciifolia extracts prove to be candidates for the development of new therapeutic formulations to treat bacterial and fungal infections.
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Affiliation(s)
- Felicidade Caroline Rodrigues
- Department of Botany, Federal University of Pernambuco - UFPE, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco 50670-420, Brazil.
| | | | - José Weverton Almeida-Bezerra
- Department of Botany, Federal University of Pernambuco - UFPE, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco 50670-420, Brazil
| | - José Jailson Lima Bezerra
- Department of Botany, Federal University of Pernambuco - UFPE, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco 50670-420, Brazil
| | - Victor Juno Alencar Fonseca
- Department of Biological Sciences, Regional University of Cariri - URCA, Rua Cel. Antônio Luís, 1161, Crato, Ceará 63105-000, Brazil
| | - Ana Carolina Justino de Araújo
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antônio Luís no 1161, Crato, Ceará 63105-000, Brazil
| | - Henrique Douglas Melo Coutinho
- Department of Biological Chemistry, Regional University of Cariri - URCA, Rua Cel. Antônio Luís no 1161, Crato, Ceará 63105-000, Brazil
| | - Paulo Riceli Vasconcelos Ribeiro
- Multi-User Natural Products Chemistry Laboratory - LMQPN, Embrapa Tropical Agroindustry, Rua Dra. Sara Mesquita, 2270, Fortaleza, Ceará 60511-110, Brazil
| | - Kirley Marques Canuto
- Multi-User Natural Products Chemistry Laboratory - LMQPN, Embrapa Tropical Agroindustry, Rua Dra. Sara Mesquita, 2270, Fortaleza, Ceará 60511-110, Brazil
| | | | - Antônio Fernando Morais de Oliveira
- Department of Botany, Federal University of Pernambuco - UFPE, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco 50670-420, Brazil
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Ciborowski K, Szczecińska M, Maździarz M, Sawicki J, Paukszto Ł. Decoding Evolution of Rubioideae: Plastomes Reveal Sweet Secrets of Codon Usage, Diagnostides, and Superbarcoding. Genes (Basel) 2024; 15:562. [PMID: 38790191 PMCID: PMC11121115 DOI: 10.3390/genes15050562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
Galium genus belongs to the Rubiaceae family, which consists of approximately 14,000 species. In comparison to its well-known relatives, the plastomes of the Galium genus have not been explored so far. The plastomes of this genus have a typical, quadripartite structure, but differ in gene content, since the infA gene is missing in Galium palustre and Galium trfidum. An evaluation of the effectiveness of using entire chloroplast genome sequences as superbarcodes for accurate plant species identification revealed the high potential of this method for molecular delimitation within the genus and tribe. The trnE-UUC-psbD region showed the biggest number of diagnostides (diagnostic nucleotides) which might be new potential barcodes, not only in Galium, but also in other closely related genera. Relative synonymous codon usage (RSCU) appeared to be connected with the phylogeny of the Rubiaceae family, showing that during evolution, plants started preferring specific codons over others.
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Affiliation(s)
| | | | | | - Jakub Sawicki
- Department of Botany and Evolutionary Ecology, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727 Olsztyn, Poland; (K.C.); (M.S.); (M.M.); (Ł.P.)
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Sutopo NC, Rahmawati L, Huang L, Kry M, Chhang P, Lee S, Lee BH, Cho JY. Anti-inflammatory, Antioxidative, and Moisturizing Effects of Oxyceros horridus Lour. Ethanol Extract in Human Keratinocytes via the p38 Signaling Pathway. Chem Biodivers 2024; 21:e202301791. [PMID: 38415391 DOI: 10.1002/cbdv.202301791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 02/29/2024]
Abstract
Skin is the largest and outermost organ in the human body; it serves as a vital defense mechanism against various external threats. Therefore, it is crucial to maintain its health through protection against harmful substances and adequate moisture levels. This study investigates the anti-inflammatory, antioxidant, and moisturizing properties of Oxyceros horridus Lour. (Oh-EE) in human keratinocytes. Oh-EE demonstrates potent antioxidant activity and effectively protects against oxidative stress induced by external stimuli such as UVB radiation and H2O2. Additionally, it exhibits significant anti-inflammatory effects proven by its ability to downregulate the expression of pro-inflammatory cytokines, namely COX-2 and IL-6. The study also explores the involvement of the AP-1 pathway, highlighting the ability of Oh-EE to suppress the expression of p38 and its upstream regulator, MKK3/6, under UVB-induced conditions. Interestingly, Oh-EE can activate the AP-1 pathway in the absence of external triggers. Furthermore, Oh-EE enhances skin moisture by upregulating the expression of key genes involved in skin hydration, namely HAS3 and FLG. These findings underscore the potential of Oh-EE as a versatile ingredient in skincare formulations, providing a range of skin benefits. Further research is warranted to comprehensively understand the underlying mechanisms through which Oh-EE exerts its effects.
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Affiliation(s)
| | - Laily Rahmawati
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Lei Huang
- Department of Biocosmetics, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Masphal Kry
- Forestry Administration, Ministry of Agriculture Forestry and Fisheries, #40 Norodom Blvd, Daun Penh, Phnom Penh, Cambodia
| | - Phourin Chhang
- Forestry Administration, Ministry of Agriculture Forestry and Fisheries, #40 Norodom Blvd, Daun Penh, Phnom Penh, Cambodia
| | - Sarah Lee
- Strategic Planning Division, National Institute of Biological Resources, Incheon, 22689, Republic of Korea
| | - Byoung-Hee Lee
- Biological Resources Assessment Division, National Institute of Biological Resources, Incheon, 22689, Republic of Korea
| | - Jae Youl Cho
- Department of Biocosmetics, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
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López-Vázquez AL, Sepúlveda-García EB, Rubio-Rodríguez E, Ponce-Noyola T, Trejo-Tapia G, Barrera-Cortés J, Cerda-García-Rojas CM, Ramos-Valdivia AC. Induction of Monoterpenoid Oxindole Alkaloids Production and Related Biosynthetic Gene Expression in Response to Signaling Molecules in Hamelia patens Plant Cultures. PLANTS (BASEL, SWITZERLAND) 2024; 13:966. [PMID: 38611495 PMCID: PMC11013434 DOI: 10.3390/plants13070966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024]
Abstract
Hamelia patens (Rubiaceae), known as firebush, is a source of bioactive monoterpenoid oxindole alkaloids (MOAs) derived from monoterpenoid indole alkaloids (MIAs). With the aim of understanding the regulation of the biosynthesis of these specialized metabolites, micropropagated plants were elicited with jasmonic acid (JA) and salicylic acid (SA). The MOA production and MIA biosynthetic-related gene expression were evaluated over time. The production of MOAs was increased compared to the control up to 2-fold (41.3 mg g DW-1) at 72 h in JA-elicited plants and 2.5-fold (42.4 mg g DW-1) at 120 h in plants elicited with SA. The increment concurs with the increase in the expression levels of the genes HpaLAMT, HpaTDC, HpaSTR, HpaNPF2.9, HpaTHAS1, and HpaTHAS2. Interestingly, it was found that HpaSGD was downregulated in both treatments after 24 h but in the SA treatment at 120 h only was upregulated to 8-fold compared to the control. In this work, we present the results of MOA production in H. patens and discuss how JA and SA might be regulating the central biosynthetic steps that involve HpaSGD and HpaTHAS genes.
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Affiliation(s)
- Ana Luisa López-Vázquez
- Departamento de Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico 07360, Mexico; (A.L.L.-V.); (T.P.-N.); (J.B.-C.)
| | - Edgar Baldemar Sepúlveda-García
- Laboratorio de Biotecnología Vegetal, Instituto de Biotecnología, División de Estudios de Posgrado, Universidad del Papaloapan, San Juan de Tuxtepec 68301, Oaxaca, Mexico;
| | - Elizabeth Rubio-Rodríguez
- Departamento de Biotecnología, Centro de Desarrollo de Productos Bióticos, Instituto Politécnico Nacional (CEPROBI-IPN), Yautepec 62730, Morelos, Mexico; (E.R.-R.); (G.T.-T.)
| | - Teresa Ponce-Noyola
- Departamento de Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico 07360, Mexico; (A.L.L.-V.); (T.P.-N.); (J.B.-C.)
| | - Gabriela Trejo-Tapia
- Departamento de Biotecnología, Centro de Desarrollo de Productos Bióticos, Instituto Politécnico Nacional (CEPROBI-IPN), Yautepec 62730, Morelos, Mexico; (E.R.-R.); (G.T.-T.)
| | - Josefina Barrera-Cortés
- Departamento de Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico 07360, Mexico; (A.L.L.-V.); (T.P.-N.); (J.B.-C.)
| | - Carlos M. Cerda-García-Rojas
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico 07360, Mexico;
| | - Ana C. Ramos-Valdivia
- Departamento de Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico 07360, Mexico; (A.L.L.-V.); (T.P.-N.); (J.B.-C.)
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Viana Dos Santos MB, Braga de Oliveira A, Veras Mourão RH. Brazilian plants with antimalarial activity: A review of the period from 2011 to 2022. JOURNAL OF ETHNOPHARMACOLOGY 2024; 322:117595. [PMID: 38122914 DOI: 10.1016/j.jep.2023.117595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/16/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Malaria continues to be a serious global public health problem in subtropical and tropical countries of the world. The main drugs used in the treatment of human malaria, quinine and artemisinin, are isolates of medicinal plants, making the use of plants a widespread practice in countries where malaria is endemic. Over the years, due to the increased resistance of the parasite to chloroquine and artemisinin in certain regions, new strategies for combating malaria have been employed, including research with medicinal plants. AIM This review focuses on the scientific production regarding medicinal plants from Brazil whose antimalarial activity was evaluated during the period from 2011 to 2022. 2. METHODOLOGY For this review, four electronic databases were selected for research: Pubmed, ScienceDirect, Scielo and Periódicos CAPES. Searches were made for full texts published in the form of scientific articles written in Portuguese or English and in a digital format. In addition, prospects for new treatments as well as future research that encourages the search for natural products and antimalarial derivatives are also presented. RESULTS A total of 61 publications were encountered, which cited 36 botanical families and 92 species using different Plasmodium strains in in vitro and in vivo assays. The botanical families with the most expressive number of species found were Rubiaceae, Apocynaceae, Fabaceae and Asteraceae (14, 14, 9 and 6 species, respectively), and the most frequently cited species were of the genera Psychotria L. (8) and Aspidosperma Mart. (12), which belong to the families Rubiaceae and Apocynaceae. Altogether, 75 compounds were identified or isolated from 28 different species, 31 of which are alkaloids. In addition, the extracts of the analyzed species, including the isolated compounds, showed a significant reduction of parasitemia in P. falciparum and P. berghei, especially in the clones W2 CQ-R (in vitro) and ANKA (in vivo), respectively. The Brazilian regions with the highest number of species analyzed were those of the north, especially the states of Pará and Amazonas, and the southeast, especially the state of Minas Gerais. CONCLUSION Although many plant species with antimalarial potential have been identified in Brazil, studies of new antimalarial molecules are slow and have not evolved to the production of a phytotherapeutic medicine. Given this, investigations of plants of traditional use and biotechnological approaches are necessary for the discovery of natural antimalarial products that contribute to the treatment of the disease in the country and in other endemic regions.
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Affiliation(s)
- Maria Beatriz Viana Dos Santos
- Laboratório de Bioprospecção e Biologia Experimental - LabBBEx, Universidade Federal do Oeste do Pará, Rua Vera Paz, s/n, Salé, 68035-110, Santarém, PA, Brazil; Programa de Pós-Graduação Doutorado em Rede de Biodiversidade e Biotecnologia - BIONORTE/Polo Pará. Universidade Federal do Pará, Rua Augusto Corrêa, 01, Guamá, 66075-110, Belém, PA, Brazil.
| | - Alaíde Braga de Oliveira
- Laboratório de Bioprospecção e Biologia Experimental - LabBBEx, Universidade Federal do Oeste do Pará, Rua Vera Paz, s/n, Salé, 68035-110, Santarém, PA, Brazil; Programa de Pós-Graduação Doutorado em Rede de Biodiversidade e Biotecnologia - BIONORTE/Polo Pará. Universidade Federal do Pará, Rua Augusto Corrêa, 01, Guamá, 66075-110, Belém, PA, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas - PPGCF, Faculdade de Farmácia, Departamento de Produtos Farmacêuticos, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil.
| | - Rosa Helena Veras Mourão
- Laboratório de Bioprospecção e Biologia Experimental - LabBBEx, Universidade Federal do Oeste do Pará, Rua Vera Paz, s/n, Salé, 68035-110, Santarém, PA, Brazil; Programa de Pós-Graduação Doutorado em Rede de Biodiversidade e Biotecnologia - BIONORTE/Polo Pará. Universidade Federal do Pará, Rua Augusto Corrêa, 01, Guamá, 66075-110, Belém, PA, Brazil
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Zhang H, Fang WT, Li Y, Kong QH, Fang CW, Luo H, Liu SJ. Chemical constituents from the aerial parts of Rubia cordifolia L. with their NO inhibitory activity. Nat Prod Res 2024; 38:711-718. [PMID: 36971058 DOI: 10.1080/14786419.2023.2192491] [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: 11/09/2022] [Accepted: 03/10/2023] [Indexed: 03/29/2023]
Abstract
A new naphthoquinone derivative (1) together with twenty-three known compounds (2-24), were isolated from the aerial parts of Rubia cordifolia L. Their structures were elucidated on the basis of NMR and HR-ESIMS data. Compounds 1-13 were assessed for their inhibitory effects on NO production in LPS-stimulated RAW 264.7 macrophage cells. Compounds 2-6 exhibited significant inhibitory activities with IC50 values of 21.37, 13.81, 24.56, 20.32, and 30.08 μmol·L-1, respectively.
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Affiliation(s)
- Hong Zhang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Wen-Tao Fang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Yan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Kunming, China
| | - Qing-Hua Kong
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Kunming, China
| | - Cheng-Wu Fang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Han Luo
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine,, Hefei, China
| | - Shou-Jin Liu
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
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Tlhapi D, Ramaite I, Anokwuru C, van Ree T, Madala N, Hoppe H. Effects of seasonal variation on phytochemicals contributing to the antimalarial and antitrypanosomal activities of Breonadia salicina using a metabolomic approach. Heliyon 2024; 10:e24068. [PMID: 38298618 PMCID: PMC10827688 DOI: 10.1016/j.heliyon.2024.e24068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/17/2023] [Accepted: 01/03/2024] [Indexed: 02/02/2024] Open
Abstract
This study involves the investigation of various plant parts of Breonadia salicina (Vahl) Hepper and J.R.I. Wood across multiple consecutive seasons. It aims to delve into the phytochemistry of these different plant parts and establish connections between the findings and their biological activities. This comprehensive approach employs metabolomics techniques, with the ultimate goal of exploring the potential for drug development. Samples were collected in Fondwe, a village in Limpopo (South Africa), based on local reports of the efficacy of this plant used by traditional healers in the area. The antimalarial and antitrypanosomal activities of samples collected over the seasons were determined with the parasite lactate dehydrogenase (pLDH) and specific Trypanosoma brucei assays, respectively. Consequently, a total of 24 compounds were tentatively identified through ultra-performance liquid chromatography with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS). Chemical profiles of the different plant parts of Breonadia salicina collected in different seasons produced contrasting metabolic profiles. Chemometric analysis of the UPLC-QTOF-MS data enabled us to determine the chemical variability of the crude stem bark, root and leaf extracts (n = 48) collected over four consecutive seasons by evaluating the metabolomics fingerprinting of the samples using an untargeted approach. Principal component analysis (PCA), hierarchical cluster analysis (HCA), and partial least squares discriminant analysis (PLS-DA) indicated the existence of two key clusters that are linked to the root, stem bark, and leaves. The stem and root chemistry differed from that of the leaves. Seasonal variations were noted in each plant part, with autumn and winter samples closely grouped compared to spring and summer samples in the methanol leaf extracts. Biochemometric analysis could not relate specific compounds to the antimalarial and antitrypanosomal activities of the active extracts, underscoring the intricate interactions among the secondary metabolites. This study further confirms the optimal plant parts to collect in each season for the most effective antimalarial and antitrypanosomal activities.
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Affiliation(s)
- Dorcas Tlhapi
- Department of Chemistry, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
| | - Isaiah Ramaite
- Department of Chemistry, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
| | - Chinedu Anokwuru
- Department of Basic Sciences, School of Science and Technology, Babcock University, Nigeria
| | - Teunis van Ree
- Department of Chemistry, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
| | - Ntakadzeni Madala
- Department of Biochemistry, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
| | - Heinrich Hoppe
- Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
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Jaafar A, Zulkipli MA, Mohd Hatta FH, Jahidin AH, Abdul Nasir NA, Hazizul Hasan M. Therapeutic potentials of iridoids derived from Rubiaceae against in vitro and in vivo inflammation: A scoping review. Saudi Pharm J 2024; 32:101876. [PMID: 38226349 PMCID: PMC10788517 DOI: 10.1016/j.jsps.2023.101876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/15/2023] [Indexed: 01/17/2024] Open
Abstract
Acute inflammation may develop into chronic, life-threatening inflammation-related diseases if left untreated or if there are persistent triggering factors. Cancer, diabetes mellitus, stroke, cardiovascular diseases, and neurodegenerative disorders are some of the inflammation-related diseases affecting millions of people worldwide. Despite that, conventional medical therapy such as non-steroidal anti-inflammatory drugs (NSAIDs) is associated with serious adverse effects; hence, there is an urgent need for a newer and safer therapeutic alternative from natural sources. Iridoids are naturally occurring heterocyclic monoterpenoids commonly found in Rubiaceae plants. Plant extracts from the Rubiaceae family were demonstrated to have medicinal benefits against neurodegeneration, inflammation, oxidative stress, hyperglycaemia, and cancer. However, the therapeutic effects of natural iridoids derived from Rubiaceae as well as their prospective impacts on inflammation in vitro and in vivo have not been thoroughly explored. The databases of PubMed, Scopus, and Web of Science were searched for pertinent articles in accordance with PRISMA-ScR guidelines. A total of 31 pertinent articles from in vitro and in vivo studies on the anti-inflammatory potentials of iridoids from Rubiaceae were identified. According to current research, genipin, geniposide, and monotropein are the most researched iridoids from Rubiaceae that reduce inflammation. These iridoids primarily act by attenuating inflammatory cytokines and mediators via inhibition of the NF-κB signalling pathway in various disease models. A comprehensive overview of the current research on the anti-inflammatory properties of iridoids from the Rubiaceae family is presented in this review, highlighting the characteristics of the experimental models used as well as the mechanisms of action of these iridoids. To develop an alternative therapeutic agent from iridoids, more studies are needed to elucidate the effects and mechanism of action of iridoids in a wide variety of experimental models as well as in clinical studies pertaining to inflammation-related diseases.
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Affiliation(s)
- Aisyah Jaafar
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia
- Department of Pharmacology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, 47000, Sungai Buloh, Selangor, Malaysia
| | - Muhammad Amal Zulkipli
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia
| | - Fazleen Haslinda Mohd Hatta
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia
| | - Aisyah Hasyila Jahidin
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia
| | - Nurul Alimah Abdul Nasir
- Department of Pharmacology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, 47000, Sungai Buloh, Selangor, Malaysia
| | - Mizaton Hazizul Hasan
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Bandar Puncak Alam, Selangor, Malaysia
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Duran-Izquierdo M, Sierra-Marquez L, Taboada-Alquerque M, Olivero-Verbel J. Simira cordifolia protects against metal induced-toxicity in Caenorhabditis elegans. Front Pharmacol 2023; 14:1235190. [PMID: 38035022 PMCID: PMC10684763 DOI: 10.3389/fphar.2023.1235190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/22/2023] [Indexed: 12/02/2023] Open
Abstract
Simira cordifolia (Hook.f.) Steyerm (Rubiaceae) is a vascular plant used in Northern Colombia as a source of pigments and wood. However, there is a lack of information regarding its pharmacology and toxicity. This research aimed to study the hydroalcoholic extract of Simira cordifolia as a protector against metal-induced toxicity in Caenorhabditis elegans. Preliminary phytochemical screening of the hydroalcoholic extract of S. cordifolia (HAE-Sc) was conducted using HPLC-ESI-QTOF. Wild-type N2 C. elegans larvae were exposed to different concentrations of HAE-Sc evaluating lethality (50-5000 μg/mL), growth, lifespan, resistance to heat stress, and its protective effect against Mercury (Hg)-, Lead (Pb)- and Cadmium (Cd)-induced lethality (50-1000 μg/mL). The main metabolites present in the extract were iridoids, β-carboline-alkaloids and polyphenols. Bioassays demonstrated that HAE-Sc exhibited low toxicity, with significant lethality (4.2% and 9.4%) occurring at 2500-5000 μg/mL. Growth inhibition reached up to 23.3%, while reproduction declined 13% and 17% at concentrations 500 and 1000 μg/mL, respectively. HAE-Sc enhanced the survival rate of the nematode under thermal stress by up to 79.8%, and extended the mean lifespan of worms by over 33% compared to control. The average lifespan was prolonged by 15.3% and 18.5% at 50 and 100 μg/mL HAE-Sc, respectively. The extract (1000 μg/mL) was able to reduce the death of C. elegans in the presence of heavy metals up to 65.9, 96.8% and 87% for Pb, Hg, and Cd, respectively. In summary, S. cordifolia shows potential protective effects in C. elegans against toxicity caused by heavy metals and heat.
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Affiliation(s)
| | | | | | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Zaragocilla Campus, Cartagena, Colombia
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Claro RO, Rivero-Wendt CLG, Miranda-Vilela AL, Grisolia CK, Facco GG, Moreira DDL, Matias R, Guilhermino JDF. Toxicological effects of aqueous extract of Genipa americana L. leaves on adult zebrafish (Danio rerio): Chemical profile, histopathological effects and lack of genotoxicity. Toxicon 2023; 235:107305. [PMID: 37839738 DOI: 10.1016/j.toxicon.2023.107305] [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: 08/22/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/17/2023]
Abstract
Genipa americana is a native plant of Brazil with potential applications in folk medicine. Whereas most of the phytochemical and pharmacological studies on this plant have focused on its fruits, the crude extracts of its leaves contain chemical metabolites that may have toxicity to organisms, which have yet to be investigated. This study aimed to determine the main groups of secondary metabolites in the aqueous extract of the leaves of G. americana by phytochemistry and qualitative HPLC, and to evaluate the possible toxicological effects and histopathological changes caused by this extract in zebrafish (Danio rerio) adults, through micronucleus test, nuclear abnormalities and histopathological analyses of gills and liver. While three metabolites of high intensity (phenolic compounds, flavonoids and triterpenes) were found in the phytochemical evaluation, the HPLC showed results compatible with flavonoids and iridoids, all belonging to common classes for this species and the Rubiaceae family. The acute toxicity test did not induce mortality or genotoxicity in zebrafish, but after exposure for 96 h, it was possible to observe injuries to the fish gill tissue, such as lamellar fusion, vasodilation and telangiectasia; in the liver, necrosis was visualized at 40 mg/L, and at higher concentrations (80 and 100 mg/L) induced sinusoidal widening was identified. In conclusion, the results demonstrated the toxic potential of this plant for aquatic species.
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Affiliation(s)
- Raquel Oliveira Claro
- Graduate Program in Environment and Regional Development, Universidade Anhanguera -Uniderp. Rua Alexandre Herculano, 1400, Jardim Veraneio, 79037-280, Campo Grande, Mato Grosso do Sul, Brazil.
| | - Carla Letícia Gediel Rivero-Wendt
- Graduate Program in Animal Biology, Federal University of Mato Grosso do Sul. Av. Costa e Silva, Pioneiros, 79070-900, Campo Grande, Mato Grosso do Sul, Brazil.
| | | | - Cesar Koppe Grisolia
- Biological Sciences Institute, University of Brasília. Campus Universitário Darcy Ribeiro, Bloco E, Asa Norte, 70910-900, Brasília, Distrito Federal, Brazil.
| | - Gilberto Golçalves Facco
- Graduate Program in Environment and Regional Development, Universidade Anhanguera -Uniderp. Rua Alexandre Herculano, 1400, Jardim Veraneio, 79037-280, Campo Grande, Mato Grosso do Sul, Brazil.
| | - Davyson de Lima Moreira
- Natural Products Department, Far-Manguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, 21041-250, Rio de Janeiro, RJ, Brazil.
| | - Rosemary Matias
- Graduate Program in Environment and Regional Development, Universidade Anhanguera -Uniderp. Rua Alexandre Herculano, 1400, Jardim Veraneio, 79037-280, Campo Grande, Mato Grosso do Sul, Brazil.
| | - Jislaine de Fátima Guilhermino
- Natural Products Department, Far-Manguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, 21041-250, Rio de Janeiro, RJ, Brazil
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Chen X, Li J, Yu L, Maule F, Chang L, Gallant JA, Press DJ, Raithatha SA, Hagel JM, Facchini PJ. A cane toad (Rhinella marina) N-methyltransferase converts primary indolethylamines to tertiary psychedelic amines. J Biol Chem 2023; 299:105231. [PMID: 37690691 PMCID: PMC10570959 DOI: 10.1016/j.jbc.2023.105231] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/31/2023] [Accepted: 09/03/2023] [Indexed: 09/12/2023] Open
Abstract
Psychedelic indolethylamines have emerged as potential medicines to treat several psychiatric pathologies. Natural sources of these compounds include 'magic mushrooms' (Psilocybe spp.), plants used to prepare ayahuasca, and toads. The skin and parotid glands of certain toads accumulate a variety of specialized metabolites including toxic guanidine alkaloids, lipophilic alkaloids, poisonous steroids, and hallucinogenic indolethylamines such as DMT, 5-methoxy-DMT, and bufotenin. The occurrence of psychedelics has contributed to the ceremonial use of toads, particularly among Mesoamerican peoples. Yet, the biosynthesis of psychedelic alkaloids has not been elucidated. Herein, we report a novel indolethylamine N-methyltransferase (RmNMT) from cane toad (Rhinella marina). The RmNMT sequence was used to identify a related NMT from the common toad, Bufo bufo. Close homologs from various frog species were inactive, suggesting a role for psychedelic indolethylamine biosynthesis in toads. Enzyme kinetic analyses and comparison with functionally similar enzymes showed that recombinant RmNMT was an effective catalyst and not product inhibited. The substrate promiscuity of RmNMT enabled the bioproduction of a variety of substituted indolethylamines at levels sufficient for purification, pharmacological screening, and metabolic stability assays. Since the therapeutic potential of psychedelics has been linked to activity at serotonergic receptors, we evaluated binding of derivatives at 5-HT1A and 5-HT2A receptors. Primary amines exhibited enhanced affinity at the 5-HT1A receptor compared with tertiary amines. With the exception of 6-substituted derivatives, N,N-dimethylation also protected against catabolism by liver microsomes.
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Affiliation(s)
- Xue Chen
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Jing Li
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Lisa Yu
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Francesca Maule
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Limei Chang
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | | | - David J Press
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | | | - Jillian M Hagel
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada
| | - Peter J Facchini
- Discovery Group, Enveric Biosciences Inc, Calgary, Alberta, Canada; Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada.
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Kim K, Shahsavarani M, Garza-García JJO, Carlisle JE, Guo J, De Luca V, Qu Y. Biosynthesis of kratom opioids. THE NEW PHYTOLOGIST 2023; 240:757-769. [PMID: 37518950 DOI: 10.1111/nph.19162] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/06/2023] [Indexed: 08/01/2023]
Abstract
Mitragynine, an analgesic alkaloid from the plant Mitragyna speciosa (kratom), offers a safer alternative to clinical opioids such as morphine, owing to its more favorable side effect profile. Although kratom has been traditionally used for stimulation and pain management in Southeast Asia, the mitragynine biosynthesis pathway has remained elusive. We embarked on a search for mitragynine biosynthetic genes from the transcriptomes of kratom and other members of the Rubiaceae family. We studied their functions in vitro and in vivo. Our investigations led to the identification of several reductases and an enol methyltransferase that forms a new clade within the SABATH methyltransferase family. Furthermore, we discovered a methyltransferase from Hamelia patens (firebush), which catalyzes the final step. With the tryptamine 4-hydroxylase from the psychedelic mushroom Psilocybe cubensis, we accomplished the four-step biosynthesis for mitragynine and its stereoisomer, speciogynine in both yeast and Escherichia coli when supplied with tryptamine and secologanin. Although we have yet to pinpoint the authentic hydroxylase and methyltransferase in kratom, our discovery completes the mitragynine biosynthesis. Through these breakthroughs, we achieved the microbial biosynthesis of kratom opioids for the first time. The remarkable enzyme promiscuity suggests the possibility of generating derivatives and analogs of kratom opioids in heterologous systems.
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Affiliation(s)
- Kyunghee Kim
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | | | | | - Jack Edward Carlisle
- Department of Chemistry, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
| | - Jun Guo
- Department of Chemistry, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
| | - Vincenzo De Luca
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Yang Qu
- Department of Chemistry, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
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Hazarika S, Borah P, Deb PK, Venugopala KN, Hemalatha S. Icacinaceae Plant Family: A Recapitulation of the Ethnobotanical, Phytochemical, Pharmacological, and Biotechnological Aspects. Curr Pharm Des 2023; 29:1193-1217. [PMID: 37132105 DOI: 10.2174/1381612829666230502164605] [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: 12/30/2022] [Revised: 03/05/2023] [Accepted: 03/06/2023] [Indexed: 05/04/2023]
Abstract
Icacinaceae, an Angiospermic family comprising 35 genera and 212 accepted species, including trees, shrubs, and lianas with pantropical distribution, is one of the most outshining yet least explored plant families, which despite its vital role as a source of pharmaceuticals and nutraceuticals has received a meagre amount of attraction from the scientific community. Interestingly, Icacinaceae is considered a potential alternative resource for camptothecin and its derivatives, which are used in treating ovarian and metastatic colorectal cancer. However, the concept of this family has been revised many times, but further recognition is still needed. The prime objective of this review is to compile the available information on this family in order to popularize it in the scientific community and the general population and promote extensive exploration of these taxa. The phytochemical preparations or isolated compounds from the Icacinaceae family have been centrally amalgamated to draw diverse future prospects from this inclusive plant species. The ethnopharmacological activities and the associated endophytes and cell culture techniques are also depicted. Nevertheless, the methodical evaluation of the Icacinaceae family is the only means to preserve and corroborate the folkloristic remedial effects and provide scientific recognition of its potencies before they are lost under the blanket of modernization.
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Affiliation(s)
- Sangeeta Hazarika
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India
| | - Pobitra Borah
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248002, Uttarakhand, India
| | - Pran Kishore Deb
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Philadelphia University, PO Box 1, Amman, 19392, Jordan
| | - Katharigatta N Venugopala
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, 31982, Kingdom of Saudi Arabia
- Department of Biotechnology and Food Science, Durban University of Technology, Durban, 4001, South Africa
| | - Siva Hemalatha
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, Uttar Pradesh, India
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Castro-Moretti FR, Cocuron JC, Castillo-Gonzalez H, Escudero-Leyva E, Chaverri P, Guerreiro-Filho O, Slot JC, Alonso AP. A metabolomic platform to identify and quantify polyphenols in coffee and related species using liquid chromatography mass spectrometry. FRONTIERS IN PLANT SCIENCE 2023; 13:1057645. [PMID: 36684722 PMCID: PMC9852862 DOI: 10.3389/fpls.2022.1057645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
INTRODUCTION Products of plant secondary metabolism, such as phenolic compounds, flavonoids, alkaloids, and hormones, play an important role in plant growth, development, stress resistance. The plant family Rubiaceae is extremely diverse and abundant in Central America and contains several economically important genera, e.g. Coffea and other medicinal plants. These are known for the production of bioactive polyphenols (e.g. caffeine and quinine), which have had major impacts on human society. The overall goal of this study was to develop a high-throughput workflow to identify and quantify plant polyphenols. METHODS First, a method was optimized to extract over 40 families of phytochemicals. Then, a high-throughput metabolomic platform has been developed to identify and quantify 184 polyphenols in 15 min. RESULTS The current metabolomics study of secondary metabolites was conducted on leaves from one commercial coffee variety and two wild species that also belong to the Rubiaceae family. Global profiling was performed using liquid chromatography high-resolution time-of-flight mass spectrometry. Features whose abundance was significantly different between coffee species were discriminated using statistical analysis and annotated using spectral databases. The identified features were validated by commercially available standards using our newly developed liquid chromatography tandem mass spectrometry method. DISCUSSION Caffeine, trigonelline and theobromine were highly abundant in coffee leaves, as expected. Interestingly, wild Rubiaceae leaves had a higher diversity of phytochemicals in comparison to commercial coffee: defense-related molecules, such as phenylpropanoids (e.g., cinnamic acid), the terpenoid gibberellic acid, and the monolignol sinapaldehyde were found more abundantly in wild Rubiaceae leaves.
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Affiliation(s)
- Fernanda R. Castro-Moretti
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX, United States
| | | | - Humberto Castillo-Gonzalez
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, United States
| | - Efrain Escudero-Leyva
- School of Biology and Natural Products Research Center Centro de Investigaciones en Productos Naturales (CIPRONA), University of Costa Rica, San Jose, Costa Rica
- Centro Nacional de Alta Technologia-Consejo Nacional de Rectores (CeNAT-CONARE), National Center for Biotechnological Innovations (CENIBiot), San Jose, Costa Rica
| | - Priscila Chaverri
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, United States
- School of Biology and Natural Products Research Center Centro de Investigaciones en Productos Naturales (CIPRONA), University of Costa Rica, San Jose, Costa Rica
| | | | - Jason C. Slot
- Department of Plant Pathology, The Ohio State University, Columbus, OH, United States
| | - Ana Paula Alonso
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX, United States
- BioAnalytical Facility, University of North Texas, Denton, TX, United States
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Khursheed A, Ahmad S, Saleem M, Khan KUR, Khan J, Orhan IE, Abaci N, Imran M, Tauseef S, Uddin R, Yawer MA, Tousif MI, Ojha SC, Khurshid U. Phytochemical profiling, in vitro biological activity, docking studies, and cytotoxicity assessments of Rondeletia odorata Jacquin: An unexplored plant of the coffee family. Front Chem 2022; 10:1017577. [DOI: 10.3389/fchem.2022.1017577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/19/2022] [Indexed: 11/13/2022] Open
Abstract
Rondeletia odorata Jacquin is a flowering plant that belongs to the coffee family. As a rich source of polyphenols with significant antioxidant potential, R. odorata may have health benefits. Therefore, in the current work, ethanolic extract of aerial parts and its n-hexane, ethyl acetate, and n-butanol soluble fractions were analyzed for their antioxidant potential and various enzyme inhibition properties. The total phenolic and flavonoid contents of the crude ethanol extract (ROE) and its n-hexane (ROH), ethyl acetate (ROEA), and n-butanol (ROB) fractions were determined spectrophotometrically, while metabolic profiling was established through UHPLC-MS analysis, which revealed the presence of 58 phytochemicals. Total phenolic and flavonoid contents of ROE extract were measured as 51.92 mg GA.Eq./g of dry extract and 52.35 mg Qu.Eq./g of the dry extract, respectively. In the DPPH radical scavenging activity assay, ROE and ROEA showed the highest potential with values of 62.13 ± 0.62 and 76.31% ± 1.86%, respectively, comparable to quercetin (80.89% ± 0.54%). Similarly, in the FRAP assay, the same pattern of the activity was observed with ROE and ROEA, which displayed absorbance values of 1.32 ± 0.01 and 0.80 ± 0.02 at 700 nm, respectively, which are comparable (1.76 ± 0.02) with the reference compound quercetin, whereas the ROH showed maximum metal-chelating capacity (62.61% ± 1.01%) among all extracts and fractions. Antibacterial activity assay indicated that the ROEA fraction was the most active against Serratia marcescens, Stenotrophomonas maltophilia, Bacillus subtilis, Klebsiella pneumonia, and Staphylococcus aureus, while the rest of the fractions showed good to moderate activity. Enzyme inhibition assays showed that ROEA fraction exhibited the highest activity with IC50 values of 2.78 ± 0.42 and 3.95 ± 0.13 mg/mL against urease and carbonic anhydrase (CA), respectively. Furthermore, the docking studies of some of the major compounds identified in the extract revealed a strong correlation with their inhibitory activity. All extracts and fractions were also tested for their thrombolytic activity, and the ROB fraction showed a notable potential. Antiviral assay led to remarkable outcomes. Thus, it can be inferred that aerial parts of R. odorata are potential sources of bioactive components with several significant pharmacological activities.
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Bioassay-Guided Isolation of Iridoid Glucosides from Stenaria nigricans, Their Biting Deterrence against Aedes aegypti (Diptera: Culicidae), and Repellency Assessment against Imported Fire Ants (Hymenoptera: Formicidae). Molecules 2022; 27:molecules27207053. [PMID: 36296645 PMCID: PMC9611780 DOI: 10.3390/molecules27207053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022] Open
Abstract
In our natural product screening program, we screened natural products for their repellency and toxicity against insect vectors. Methanolic extract of aerial parts of Stenaria nigricans (Lam.), with no published chemistry, was tested for repellency against mosquitoes and imported hybrid fire ants. Methanolic extracts showed biting deterrence similar to DEET (N,N-diethyl-3-methylbenzamide) against Aedes aegypti L. Based on this activity, the crude extract was fractionated into chloroform, ethyl acetate, and methanol subfractions. The active methanolic subfraction was further fractionated into 13 subfractions. These fractions were tested for their biting deterrence against Ae. Aegypti. Active subfractions were further characterized to identify the compounds responsible for this activity. Four undescribed iridoid glucosides (1–4) and three previously reported compounds (5–7) were isolated from active subfractions and tested for their biting deterrent activity. Based on BDI values, compounds 2, 3, 6, and 7, with biting deterrence similar to DEET, showed the potential to be used as repellents against mosquitoes. In an in vitro digging bioassay, none of these compounds showed any repellency against hybrid imported fire ants at a dose of 125 µg/g. This is the first report of biting deterrence and repellency of S. nigricans extract and its pure compounds, iridoid glucosides against mosquitoes and imported fire ants. Further studies will be conducted to explore the repellent potential of these compounds in different formulations under field conditions.
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Mohammed MA, Hamed MA, El-Gengaihi SE, Enein AMA, Kachlicki P, Hassan EM. Profiling of secondary metabolites and DNA typing of three different Annona cultivars grown in Egypt. Metabolomics 2022; 18:49. [PMID: 35781851 PMCID: PMC9252975 DOI: 10.1007/s11306-022-01911-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 06/15/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Natural products are often efficacious and safe alternatives to synthetic drugs. This study explored secondary leaves and bark metabolites profiles in extracts of a new Egyptian hybrid, Annona cherimola × Annona squamosa, known as Abdel Razek. This hybrid exhibited 100% similarity with A. cherimola as evidenced by random amplified polymorphic DNA (RAPD) and inter-simple sequence repeat (ISSR) analyses. METHODS Primary constituents in methanol extracts of different plant organs were identified. Extracts richest in alkaloids and polyphenolics were assessed for in vitro antioxidant activity and the most potent were further studied in vivo for treating gastric ulcer in rats. The latter activity was assessed histopathologically. RESULTS Structural analysis with HPLC/ESI-MSn, and UPLC/HESI-MS/MS identified 63 metabolites, including seven amino acids, 20 alkaloids, 16 flavonoids, eight phenolics and other compounds. Severe stomach alteration was observed after ethanol induction in rats. Ulcer score, oxidative stress biomarkers, cell organelles biomarker enzymes, and gastrointestinal histological features improved to variable degrees after treatment with Annona Abdel Razek hybrid leaves and bark methanol extracts. CONCLUSION Extracts of Annona Abdel Razek had showed in vitro antioxidant effect and may be promising for the treatment of gastric ulcers.
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Affiliation(s)
- Mona Arafa Mohammed
- Medicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo, 12311, Egypt.
| | - Manal A Hamed
- Department of Therapeutic Chemistry, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo, 12311, Egypt.
| | - Souad Eisawy El-Gengaihi
- Medicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo, 12311, Egypt
| | | | - Piotr Kachlicki
- Institute of Plant Genetics of the Polish Academy of Sciences (Metabolomics Group), Poznan, Poland
| | - Emad Mohamed Hassan
- Medicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo, 12311, Egypt
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Chemotaxonomy and Antibacterial Activity of the Extracts and Chemical Constituents of Psychotria succulenta Hiern. (Rubiaceae). BIOMED RESEARCH INTERNATIONAL 2022; 2022:7856305. [PMID: 35757466 PMCID: PMC9217553 DOI: 10.1155/2022/7856305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/26/2022] [Accepted: 06/03/2022] [Indexed: 11/18/2022]
Abstract
The use of natural products for medicinal purposes is becoming more and more common nowadays, as evidenced by the presence in plants of secondary metabolites with different potentials such as antioxidant and antibacterial properties. We evaluated in this work the antimicrobial activities of the extracts and some isolated compounds from the seeds of Psychotria succulenta Hiern. (Rubiaceae), a Cameroonian medicinal plant traditionally used to cure microbial infections. The ethanol extract was prepared by maceration and extracted with ethyl acetate and n-butanol. The EtOAc (m = 168 g) and n-BuOH (m = 20 g) extracts were further fractionated by silica gel column chromatography to isolation of compounds. Their structures were elucidated by spectroscopic analysis and by comparison with published data. The antibacterial activity of extracts and compounds was assessed by evaluating the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against pathogenic bacteria. Thirteen compounds including four alkaloids (veprisine (1), naucleofficine III (2), vepridimerine B (3), and vepridimerine C (4)), three triterpenes (barbinervic acid (5), 3-O-α-L-rhamnopyranosyl quinovic acid (6), and oleanolic acid (7)), one steroid (β-sitosterol-3-O-β-D-glucopyranoside (8)), four phenolic compounds (scopoletin (9), gallic acid (10), quercetin-3-O-β-D-glucopyranoside (11), and kaempferol 3-O-α-L-rhamnopyranoside-7-O-α-L-rhamnopyranoside (12)), and one iridoid (borreriagenin (13)) were isolated from the EtOAc and n-BuOH extracts. These compounds were identified by 1D and 2D NMR combined analysis as well as by melting point comparison. The EtOH, EtOAc, and n-BuOH extracts exhibited significant antibacterial activities (MIC = 32‐128 μg/mL; MBC = 64‐256 μg/mL) against Staphylococcus aureus (Gram-positive bacterium), Pseudomonas aeruginosa, Escherichia coli, and Klebsiella pneumonia (Gram-negative bacteria). Among the isolated compounds, scopoletin (9) showed a moderate activity against Klebsiella pneumoniae with MIC and MBC values of 16 μg/mL and 32 μg/mL, respectively. It appears that, chemotaxonomically, some of the isolated compounds have already been obtained from the genus Psychotria but to the best of our knowledge, this is the first report on the phytochemical investigation of P. succulenta. Although many other studies need to be achieved, our results support the use of P. succulenta in traditional medicine to cure infectious diseases particularly those caused by the tested bacteria.
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Nazari Formagio AS, Vilegas W, Ferreira Volobuff CR, Leite Kassuya CA, Paes de Almeida V, Manfron J, Pereira ZV, Pereira Cabral MR, Sarragiotto MH. Palicourea tomentosa (Aubl.) Borhidi: Microscopy, chemical composition and the analgesic, anti-inflammatory and anti-acetylcholinesterase potential. JOURNAL OF ETHNOPHARMACOLOGY 2022; 291:115050. [PMID: 35150816 DOI: 10.1016/j.jep.2022.115050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 01/12/2022] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Palicourea tomentosa (Aubl.) Borhidi (synonym Psychotria poeppigiana Müll. Arg.) leaves are used in the popular treatments of inflammation and pain; however, there are no scientific studies demonstrating their activity as the methanolic extract of P. tomentosa. AIM OF STUDY This study was undertaken to investigate the potential antioxidant, anti-acetylcholinesterase, anti-hyperalgesic, anti-nociceptive and anti-inflammatory properties, as well as the chemical composition and concentrations of constituents of the methanolic extract of P. tomentosa leaves (MEPT). The study also analyzes the micromorphology and histochemistry of leaves of P. tomentosa. MATERIALS AND METHODS The MEPT was analysed by ultra-high-pressure liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS/MS). The concentrations of total phenols, flavonoids, flavonols and condensed tannin were determined. The micromorphology and histochemistry of leaves were performed using standard reagents, light and field emission scanning electron microscopy, beyond energy-dispersive X-ray spectroscopy. The antioxidant activity was evaluated for DPPH, β-carotene and MDA. The anti-inflammatory activity of MEPT (30, 100, and 300 mg/kg) was assayed in carrageenan-induced models of paw oedema, mechanical hyperalgesia (Von Frey), cold allodynia (acetone) and pleurisy in mice. The anti-nociceptive potential of MEPT (30, 100, and 300 mg/kg) was evaluated by the formalin method in mice. The anti-acetylcholinesterase properties were evaluated in vivo in four rat brain structures. RESULTS The total ion chromatogram of MEPT demonstrated two alkaloids, one coumarin, one iridoid and two terpene derivatives. The highest phenol, flavonoid, flavonol and condensed tannin concentrations were found in the extract. A comprehensive explanation of the leaf micromorphology and histochemistry was presented. MEPT was significantly inhibited by the DPPH, β-carotene and MDA models. MEPT (30, 100 and 300 mg/kg) reduced the inflammation and hyperalgesic parameters in a carrageenan model and reduced formalin-induced nociception in both phases, which were cold sensitivity and oedema formation. The oral administration of 30 and 100 mg/kg MEPT significantly inhibited AChE activity in the frontal cortex. CONCLUSION This is the first chemical and biological study performed with a P. tomentosa methanolic extract and anatomical and histochemical analysis. The present study showed that MEPT inhibited pain and inflammatory parameters contributing, at least in part, to explain the popular use of this plant as analgesic natural agent. Also, anatomical and histochemistry of leaves described in the present study provide microscopical information, which aids species identification.
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Affiliation(s)
| | - Wagner Vilegas
- Institute of Biosciences, UNESP - São Paulo State University, São Vicente, SP, Brazil
| | | | | | - Valter Paes de Almeida
- Postgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Jane Manfron
- Postgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Zefa Valdevina Pereira
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados - UFGD, Dourados, MS, Brazil
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Attah FA, Mbanu AE, Chukwudulue UM, Jonah UJ, Njinga NS. Ethnopharmacology, phytochemistry and a new chemotaxonomic marker in Oldenlandia affinis (Roem. & Schult.) DC. Rubiaceae. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The proper documentation of ethnopharmacological application of widely used indigenous plants and their phytochemical analysis has positively impacted the drug discovery pipeline. Medicinal plants with potential commercial value and prospects for clinical application need to be properly identified and authenticated to avoid confusion, adulteration and substitution. Oldenlandia affinis (OA) has continued to attract scientific attention following the discovery of extremely stable cyclotides (circular peptides) that are not expressed in many investigated members of the contentious genus, Oldenlandia (synonym – Hedyotis); yet there is a lack of an elaborate review covering some broader aspects of its traditional uses, ethnopharmacology and phytochemistry of the species. More importantly, the age long but lingering confusion and taxonomic inconsistencies common to the Oldenlandia–Hedyotis debate could foster species mismatching, increase cases of misidentification, promote adulteration of OA and thereby limit its proper clinical application. Here, we aim to reveal the extent of indigenous use of and research on OA from 1960 till date, unveil knowledge gaps, document hitherto unknown traditional applications, ethnopharmacological uses, pharmacological properties, and reported phytochemical profile. In addition, to encourage proper selection and utilization of genuine crude drug, the chemotaxonomically important phytoconstituents of OA have been presented and the modern approach of chemophenetic study of OA proposed to resolve the lack of consensus in the taxonomy of OA as well as the morphologically and anatomically close members of the taxon. The abundant cyclotide expression in OA represents a new chemotaxonomic marker for its unambiguous identification, utilization and reproducibility of research findings on the species.
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Affiliation(s)
- Francis Alfred Attah
- Department of Pharmacognosy and Drug development, Faculty of Pharmaceutical Sciences , University of Ilorin , Ilorin , Kwara State , Nigeria
| | - Augustine E. Mbanu
- Department of Pharmacognosy, Faculty of Pharmacy , University of Ibadan , Ibadan , Nigeria
| | | | | | - Ngaitad S. Njinga
- Department of Pharmaceutical and Medicinal Chemistry , University of Ilorin , Ilorin , Nigeria
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21
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Siraj MA, Jacobs AT, Tan GT. Altersolanol B, a fungal tetrahydroanthraquinone, inhibits the proliferation of estrogen receptor-expressing (ER+) human breast adenocarcinoma by modulating PI3K/AKT, p38/ERK MAPK and associated signaling pathways. Chem Biol Interact 2022; 359:109916. [DOI: 10.1016/j.cbi.2022.109916] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/10/2022] [Accepted: 03/23/2022] [Indexed: 12/15/2022]
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22
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Qin R, Zhao Q, Han B, Zhu HP, Peng C, Zhan G, Huang W. Indole-Based Small Molecules as Potential Therapeutic Agents for the Treatment of Fibrosis. Front Pharmacol 2022; 13:845892. [PMID: 35250597 PMCID: PMC8888875 DOI: 10.3389/fphar.2022.845892] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/19/2022] [Indexed: 12/17/2022] Open
Abstract
Indole alkaloids are widely distributed in nature and have been particularly studied because of their diverse biological activities, such as anti-inflammatory, anti-tumor, anti-bacterial, and anti-oxidant activities. Many kinds of indole alkaloids have been applied to clinical practice, proving that indole alkaloids are beneficial scaffolds and occupy a crucial position in the development of novel agents. Fibrosis is an end-stage pathological condition of most chronic inflammatory diseases and is characterized by excessive deposition of fibrous connective tissue components, ultimately resulting in organ dysfunction and even failure with significant morbidity and mortality. Indole alkaloids and indole derivatives can alleviate pulmonary, myocardial, renal, liver, and islet fibrosis through the suppression of inflammatory response, oxidative stress, TGF-β/Smad pathway, and other signaling pathways. Natural indole alkaloids, such as isorhynchophylline, evodiamine, conophylline, indirubin, rutaecarpine, yohimbine, and vincristine, are reportedly effective in organ fibrosis treatment. In brief, indole alkaloids with a wide range of pharmacological bioactivities are important candidate drugs for organ fibrosis treatment. The present review discusses the potential of natural indole alkaloids, semi-synthetic indole alkaloids, synthetic indole derivatives, and indole-contained metabolites in organ fibrosis treatment.
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Affiliation(s)
- Rui Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hong-Ping Zhu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Wei Huang, ; Gu Zhan,
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Wei Huang, ; Gu Zhan,
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23
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Xu C, Ye P, Wu Q, Liang S, Wei W, Yang J, Chen W, Zhan R, Ma D. Identification and functional characterization of three iridoid synthases in Gardenia jasminoides. PLANTA 2022; 255:58. [PMID: 35118554 DOI: 10.1007/s00425-022-03824-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
The discovery of three iridoid synthases (GjISY, GjISY2 and GjISY4) from Gardenia jasminoides and their functional characterization increase the understanding of iridoid scaffold/iridoid glycoside biosynthesis in iridoid-producing plants. Iridoids are a class of noncanonical monoterpenes that are found naturally in the plant kingdom mostly as glycosides. Over 40 iridoid glycosides (e.g., geniposide, gardenoside and shanzhiside) have been isolated from Gardenia jasminoides. They have multiple pharmacological properties and health-promoting effects. However, their biosynthetic pathway is poorly understood, and the iridoid synthase (ISY) responsible for the cyclization of the core scaffold remains unclear. In this study, three homologs of ISYs from G. jasminoides (GjISY, GjISY2 and GjISY4) were identified on the basis of transcriptomic data and functionally characterized. The genomic structure and intron-exon arrangement revealed that all three ISYs contained an intron. Biochemical assays indicated that all three recombinant enzymes reduced 8-oxogeranial to nepetalactol and its open forms (iridodials) as the products of the classical CrISY (Catharanthus roseus). In addition, all three enzymes reduced progesterone to 5-β-prognane-3,20-dione. However, only GjISY2 and GjISY4 reduced 2-cyclohexen-1-one to cyclohexanone. Overall, the GjISY2 expression levels in the flowers and fruits were similar to the GjISY and GjISY4 expression levels. By contrast, the GjISY2 expression levels in the upper and lower leaves were substantially higher than the GjISY and GjISY4 expression levels. Among the three, GjISY2 exhibited the highest catalytic efficiency for 8-oxogeranial. GjISY2 might be the major contributor to iridoid biosynthesis in G. jasminoides. Collectively, our results advance the understanding of iridoid scaffold/iridoid glycoside biosynthesis in G. jasminoides and provide a potential target for metabolic engineering and breeding.
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Affiliation(s)
- Chong Xu
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Peng Ye
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Qingwen Wu
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Shuangcheng Liang
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Wuke Wei
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Jinfen Yang
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Weiwen Chen
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Ruoting Zhan
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China
| | - Dongming Ma
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China.
- Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China.
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, Guangzhou, 510006, People's Republic of China.
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Aro AO, Famuyide IM, Oyagbemi AA, Kabongo-Kayoka PN, McGaw LJ. In Vitro Potential of the Acetone Leaf Extract and Fractions of Psychotria capensis (Eckl.) Vatke (Rubiaceae) to Combat Co-Infection of Tuberculosis and Helminthiasis. Front Pharmacol 2022; 12:744137. [PMID: 35087402 PMCID: PMC8787188 DOI: 10.3389/fphar.2021.744137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/16/2021] [Indexed: 11/15/2022] Open
Abstract
Tuberculosis (TB) is a disease of global importance that affects millions of people. Approximately a quarter of the world’s population is currently infected with M. tuberculosis, and about 10% of those infected will develop into active disease, particularly immune compromised individuals. Helminthiasis is of global health importance, affecting over 2 billion people mostly in resource-poor countries. Co-infection with tuberculosis (TB) and helminths (worms) is an emerging global public health concern with both affecting about one-third of the global population. Chronic infection with helminths can result in impaired immune responses to TB as well as enhancing failure to TB therapy and BCG vaccination. Antimycobacterial and anthelmintic activities of the acetone extract and fractions of Psychotria capensis were evaluated, including their in vitro safety. In addition, the anti-inflammatory and immunomodulatory effect of the fractions and crude extract of P. capensis were assessed. Antimycobacterial activity of the extract and fractions was tested against four non-tuberculous mycobacteria (Mycobacterium smegmatis, M. fortuitum, M. aurum, M. bovis BCG) and pathogenic M. tuberculosis H37Rv while the Egg Hatch Assay (EHA) was used for the anthelmintic test on eggs of Haemonchus contortus. Cytotoxicity was determined against Vero kidney cells while in vitro immune modulation via cytokine production was determined on activated macrophages. The minimum inhibitory concentration (MIC) values of the Psychotria capensis acetone extract and fractions ranged from 39 to 1,250 μg/ml with the crude extract and hexane fraction having the best MIC values (both 39 μg/ml). In the EHA, the inhibitory concentration (IC50) ranged from 160 to 630 μg/ml with the hexane fraction having the best activity. The hexane and chloroform fractions were relatively non-toxic with LC50 values of 290 and 248 μg/ml respectively, while the acetone crude extract (64 μg/ml) and n-butanol fraction (71 μg/ml) were moderately toxic. The SI values (LC50/MIC) ranged from 0.1 to 7.4 with the hexane fraction having the highest value against M. smegmatis (7.4). The hexane fraction had the best dual anthelmintic and antimycobacterial activity. This fraction had the best NO inhibitory activity and was the least cytotoxic, indicating that its activity was not due to general metabolic toxicity, with 96.54% cell viability. Pro-inflammatory cytokines such as IL-12p70 were upregulated while IL-10 expression was inhibited by the extracts. Compounds were detected using GC-MS analysis, and in both the crude acetone extract and the hexane fraction was the diterpene neophytadiene, which has anti-inflammatory and antimicrobial activity. Finding alternative or complementary approaches to dealing with TB infections by, amongst other things, reducing the incidence of helminth infestations may lessen the burden of TB, contributing to slowing the spread of multi-drug resistance.
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Affiliation(s)
- Abimbola O Aro
- Department of Agriculture and Animal Health, College of Agriculture and Environmental Science, University of South Africa, Florida, South Africa
| | - Ibukun M Famuyide
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
| | - Ademola A Oyagbemi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Prudence N Kabongo-Kayoka
- Department of Agriculture and Animal Health, College of Agriculture and Environmental Science, University of South Africa, Florida, South Africa
| | - Lyndy J McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
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Gao RR, Liu ZF, Yang XF, Song YL, Cui XY, Yang JY, Lu CH, Shen YM. Specialised metabolites as chemotaxonomic markers of Coptosapelta diffusa, supporting its delimitation as sisterhood phylogenetic relationships with Rubioideae. PHYTOCHEMISTRY 2021; 192:112929. [PMID: 34481176 DOI: 10.1016/j.phytochem.2021.112929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/16/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
From the aerial extracts of Coptosapelta diffusa (Champ. ex Benth.) Steenis, twenty-one compounds were isolated and identified by means of column chromatography and NMR and MS techniques, respectively. Amongst, ten ones were determined to be undescribed compounds including six seco-iridoid glucosides (1-6), 2-(hydroxymethyl)-1,2,3,4-tetrahydroanthracene-9,10-dione (7) and three guaiane-type sesquiterpenes (15-17). Compounds 7, 8 and 9 exhibited inhibitory activities against Staphylococcus aureus ATCC25923 with MIC of 8, 4 and 8 μg/mL. The use of 1-6 (iridoids), 7-14 (anthraquinones) and 15-17 (sesquiterpenes) as chemotaxonomic markers for this species was evidenced. Structurally, 7-14 are similar to those anthraquinones isolated from other species of the family Rubiaceae, confirming their close phylogenetic relationship. Whereas, these iridoids and sesquiterpenes with unique structures provided chemotaxonomic evidence to support the genus Coptosapelta (the tribe Coptosapelteae) as a sister of the subfamily Rubioideae. These results contrast with the general producing tendency of indole alkaloids by the species of the subfamily Cinchonoideae, and merit chemotaxonomic significance for the delimitation of Coptosapelta.
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Affiliation(s)
- Rong-Rong Gao
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Zhi-Fang Liu
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Xue-Fei Yang
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yu-Liang Song
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Xiao-Yun Cui
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Ji-Yuan Yang
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Chun-Hua Lu
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.
| | - Yue-Mao Shen
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
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Tlhapi DB, Ramaite IDI, Anokwuru CP. Metabolomic Profiling and Antioxidant Activities of Breonadia salicina Using 1H-NMR and UPLC-QTOF-MS Analysis. Molecules 2021; 26:molecules26216707. [PMID: 34771114 PMCID: PMC8587154 DOI: 10.3390/molecules26216707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 12/11/2022] Open
Abstract
Breonadia salicina (Vahl) Hepper and J.R.I. Wood is widely used in South Africa and some other African countries for treatment of various infectious diseases such as diarrhea, fevers, cancer, diabetes and malaria. However, little is known about the active constituents associated with the biological activities. This study is aimed at exploring the metabolomics profile and antioxidant constituents of B. salicina. The chemical profiles of the leaf, stem bark and root of B. salicina were comprehensively characterized using proton nuclear magnetic resonance (1H-NMR) spectroscopy and ultra-performance liquid chromatography with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS). The antioxidant activities of the crude extracts, fractions and pure compounds were determined using the DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenging and reducing power assays. A total of 25 compounds were tentatively identified using the UPLC-QTOF-MS. Furthermore, the 1H-NMR fingerprint revealed that the different parts of plant had differences and similarities among the different crude extracts and fractions. The crude extracts and fractions of the root, stem bark and leaf showed the presence of α-glucose, β-glucose, glucose and fructose. However, catechin was not found in the stem bark crude extracts but was found in the fractions of the stem bark. Lupeol was present only in the root crude extract and fractions of the stem bark. Furthermore, 5-O-caffeoylquinic acid was identified in the methanol leaf extract and its respective fractions, while the crude extracts and fractions from the root and dichloromethane leaf revealed the presence of hexadecane. Column chromatography and preparative thin-layer chromatography were used to isolate kaempferol 3-O-(2″-O-galloyl)-glucuronide, lupeol, d-galactopyranose, bodinioside Q, 5-O-caffeoylquinic acid, sucrose, hexadecane and palmitic acid. The crude methanol stem bark showed the highest antioxidant activity in the DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenging activity with an IC50 value of 41.7263 ± 7.6401 μg/mL, whereas the root crude extract had the highest reducing power activity with an IC0.5 value of 0.1481 ± 0.1441 μg/mL. Furthermore, the 1H-NMR and UPLC-QTOF-MS profiles showed the presence of hydroxycinnamic acids, polyphenols and flavonoids. According to a literature survey, these phytochemicals have been reported to display antioxidant activities. Therefore, the identified hydroxycinnamic acid (caffeic acid), polyphenol (ellagic acid) and flavonoids (catechin and (epi) gallocatechin) significantly contribute to the antioxidant activity of the different parts of plant of B. salicina. The results obtained in this study provides information about the phytochemistry and phytochemical compositions of Breonadia salicina, confirming that the species is promising in obtaining constituents with medicinal potential primarily antioxidant potential.
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Affiliation(s)
- Dorcas B. Tlhapi
- Department of Chemistry, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa;
| | - Isaiah D. I. Ramaite
- Department of Chemistry, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa;
- Correspondence: ; Tel.: +27-(0)-15-962-8262
| | - Chinedu P. Anokwuru
- Department of Pharmaceutical Sciences, Faculty of Science, Tshwane University of Technology, Pretoria 0001, South Africa;
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Tajuddeen N, Swart T, Hoppe HC, van Heerden FR. Phytochemical and antiplasmodial investigation of Gardenia thunbergia L. f. leaves. Nat Prod Res 2021; 36:4052-4060. [PMID: 34343036 DOI: 10.1080/14786419.2021.1958808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Previous results indicated that the methanol extract of Gardenia thunbergia has antiplasmodial activity but no compounds have ever been isolated from the plant. Therefore, this study aimed to investigate the phytochemical and antiplasmodial properties of the plant. The methanol leaf extract of G. thunbergia inhibited Plasmodium falciparum at 50 µg/mL (> 80% inhibition) and was not cytotoxic against HeLa cells. Chromatographic purification of the extract afforded a new saponin and eight other known compounds. The saponin and two flavonoid glycosides displayed non-selective antiplasmodial activity at 50 µg/mL but the activities were diminished at 10 µg/mL. The presence of the isolated compounds in the leaf extract of G. thunbergia could account for the folkloric use of the plant in treating malaria.
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Affiliation(s)
- Nasir Tajuddeen
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Tarryn Swart
- Department of Biochemistry & Microbiology, Rhodes University, Grahamstown, South Africa
| | - Heinrich C Hoppe
- Department of Biochemistry & Microbiology, Rhodes University, Grahamstown, South Africa
| | - Fanie R van Heerden
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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Hymery N, Dauvergne X, Boussaden H, Cérantola S, Faugère D, Magné C. Evaluation of the Antioxidant, Anti-Inflammatory and Cytoprotective Activities of Halophyte Extracts against Mycotoxin Intoxication. Toxins (Basel) 2021; 13:toxins13050312. [PMID: 33925367 PMCID: PMC8145414 DOI: 10.3390/toxins13050312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/20/2021] [Accepted: 04/25/2021] [Indexed: 12/12/2022] Open
Abstract
Twelve halophyte species belonging to different families, widely represented along French Atlantic shoreline and commonly used in traditional medicine, were screened for protective activities against mycotoxins, in order to set out new promising sources of natural ingredients for feed applications. Selected halophytic species from diverse natural habitats were examined for their in vitro anti-mycotoxin activities, through viability evaluation of Madin-Darby Bovine Kidney (MDBK) and intestinal porcine enterocyte (IPEC-J2) cell lines. Besides, the in vitro antioxidant activities of plant extracts were assessed (total antioxidant and 2,2-diphenyl-1-picrylhydrazyl (DPPH)-scavenging bioassays). Of the 12 species, Galium arenarium, Convolvulus soldanella and Eryngium campestre exhibited the most protective action on MDBK and IPEC-J2 cells against zearalenone (ZEN) or T2 toxin contamination (restoring about 75% of cell viability at 10 μg·mL−1) without inflammation response. They also had strong antioxidant capacities (Inhibitory concentration of 50% (IC50) < 100 μg·mL−1 for DPPH radical and total antioxidant capacity (TAC) of 100 to 200 mg Ascorbic Acid Equivalent (AAE)·g−1 Dry Weight), suggesting that cell protection against intoxication involves antioxidant action. A bio-guided study showed that fractions of G. arenarium extract protect MDBK cells against T2 or ZEN toxicity and several major compounds like chlorogenic acid and asperuloside could be involved in this protective effect. Overall, our results show that the halophytes G. arenarium, C. soldanella and E. campestre should be considered further as new sources of ingredients for livestock feed with protective action against mycotoxin intoxication.
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Affiliation(s)
- Nolwenn Hymery
- Laboratoire Universitaire de Biodiversité et Écologie Microbienne, Université de Brest, EA 3882, F-29280 Plouzané, France;
- Correspondence: ; Fax: +33-(0)290915101
| | - Xavier Dauvergne
- Géoarchitecture Territoires, Urbanisation, Biodiversité, Environnement, Université de Brest, EA 7462, CS 93837, CEDEX 3, F-29238 Brest, France; (X.D.); (H.B.); (C.M.)
| | - Halima Boussaden
- Géoarchitecture Territoires, Urbanisation, Biodiversité, Environnement, Université de Brest, EA 7462, CS 93837, CEDEX 3, F-29238 Brest, France; (X.D.); (H.B.); (C.M.)
| | - Stéphane Cérantola
- Service Général des Plate-Formes Technologiques, Plateforme RMN-RPE, Université de Bretagne Occidentale, CS 93837, CEDEX 3, F-29238 Brest, France;
| | - Dorothée Faugère
- Laboratoire Universitaire de Biodiversité et Écologie Microbienne, Université de Brest, EA 3882, F-29280 Plouzané, France;
| | - Christian Magné
- Géoarchitecture Territoires, Urbanisation, Biodiversité, Environnement, Université de Brest, EA 7462, CS 93837, CEDEX 3, F-29238 Brest, France; (X.D.); (H.B.); (C.M.)
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Ekalu A. Medicinal uses, phytochemistry, and pharmacological activities of Mitracarpus species (Rubiaceae): A review. SCIENTIFIC AFRICAN 2021. [DOI: 10.1016/j.sciaf.2020.e00692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Zeutsop JF, Nono RN, Frese M, Chouna JR, Lenta BN, Nkeng-Efouet-Alango P, Sewald N. Phytochemical, antibacterial, antioxidant and cytoxicity investigation of Tarenna grandiflora. ACTA ACUST UNITED AC 2020; 76:285-290. [PMID: 34218550 DOI: 10.1515/znc-2020-0187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/07/2020] [Indexed: 11/15/2022]
Abstract
The phytochemical investigation of Tarenna grandiflora led to the isolation of 18 known compounds of which were four flavones, three anthraquinones, one phenyl propanoic derivative, five triterpenoids, four steroids and a mixture of glucose. Luteolin (1) and soranjidiol (6) were allylated and/or prenylated to give four new semisynthesized derivatives which were fully characterized as 7,3',4'-O-triallylluteolin (1a), luteolin-7,3',4'-O-triprenyls (1b), luteolin-5,7,3',4'-O-tetraprenyls (1c) and 6-O-allylsoranjidiol (6a). Their structures were established using spectroscopic analysis including 1D, 2D NMR and MS data. The cytotoxic, antioxidant and antimicrobial activities of extracts, fractions, isolated compounds and semi-synthesized derivatives were evaluated. The petroleum ether and EtOAc extracts exhibited good cytotoxic potency on KB-3-1 cell line with IC50 of >0.1 and 0.025 mg/mL respectively, while compounds 1b and 11 were the most active (IC50 > 0.0001 M). Compounds 1 and 3 showed the best antioxidant activities (45.5 and 55.8 µM); while compounds 9 and 12 showed the best antibacterial activities with MICs values ranges from 8.55 to 132 µM.
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Affiliation(s)
- Jean Francois Zeutsop
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Raymond Ngansop Nono
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Marcel Frese
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, P.O. Box 100131, 33501Bielefeld, Germany
| | - Jean Rodolphe Chouna
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Bruno Ndjakou Lenta
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé I, P.O. Box 47, Yaoundé, Cameroon
| | | | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, P.O. Box 100131, 33501Bielefeld, Germany
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Nkwenti Wonkam AK, Njanpa Ngansop CA, Njonte Wouamba SC, Jouda JB, Happi GM, Boyom FF, Sewald N, Lenta BN. Rothmanniamide and other constituents from the leaves of Rothmannia hispida (K.Schum.) fagerl. (Rubiaceae) and their chemophenetic significance. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cruz JS, da Silva CA, Hamerski L. Natural Products from Endophytic Fungi Associated with Rubiaceae Species. J Fungi (Basel) 2020; 6:E128. [PMID: 32784526 PMCID: PMC7558492 DOI: 10.3390/jof6030128] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 02/06/2023] Open
Abstract
This review presents the chemical diversity and pharmacological properties of secondary metabolites produced by endophytic fungi associated with various genera of Rubiaceae. Several classes of natural products are described for these endophytes, although, this study highlights the importance of some metabolites, which are involved in antifungal, antibacterial, anti-protozoal activities; neurodegenerative diseases; cytotoxic activity; anti-inflammatory and antioxidant activity; and hyperglycemic control.
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Affiliation(s)
- Jacqueline Santos Cruz
- Department of Chemistry, Military Institute of Engineering, Praça General Tibúrcio 80, Rio de Janeiro 22290-270, Brazil;
| | - Carla Amaral da Silva
- Walter Mors Institute of Research on Natural Products, Federal University of Rio de Janeiro, Rua Carlos Chagas Filho 373, Rio de Janeiro 21941-902, Brazil;
| | - Lidilhone Hamerski
- Walter Mors Institute of Research on Natural Products, Federal University of Rio de Janeiro, Rua Carlos Chagas Filho 373, Rio de Janeiro 21941-902, Brazil;
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Wang Y, Fang YD, Su JL, Li RS, Wang F, Wang K. Chemical constituents of Uncaria rhynchophylloides How and their chemotaxonomic significance. BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Katchborian-Neto A, Santos WT, Nicácio KJ, Corrêa JOA, Murgu M, Martins TMM, Gomes DA, Goes AM, Soares MG, Dias DF, Chagas-Paula DA, Paula ACC. Neuroprotective potential of Ayahuasca and untargeted metabolomics analyses: applicability to Parkinson's disease. JOURNAL OF ETHNOPHARMACOLOGY 2020; 255:112743. [PMID: 32171895 DOI: 10.1016/j.jep.2020.112743] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 02/18/2020] [Accepted: 03/04/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE Ayahuasca is a tea produced through decoction of Amazonian plants. It has been used for centuries by indigenous people of South America. The beverage is considered to be an ethnomedicine, and it is traditionally used for the treatment of a wide range of diseases, including neurological illness. Besides, some scientific evidence suggests it may be applicable to Parkinson's disease (PD) treatment. Thus, Ayahuasca deserves in depth studies to clarify its potential role in this disease. AIM OF THE STUDY This study aimed to use an untargeted metabolomics approach to evaluate the neuroprotective potential of the Ayahuasca beverage, the extracts from its matrix plants (Banisteriopsis caapi and Psychotria viridis), its fractions and its main alkaloids on the viability of SH-SY5Y neuroblastoma cells in an in vitro PD model. MATERIAL AND METHODS The cytotoxicity of Ayahuasca, crude extracts, and fractions of B. caapi and P. viridis, as well as neuroprotection promoted by these samples in a 6-hydroxydopamine (6-OHDA)-induced neurodegeneration model, were evaluated by the MTT assay at two time-points: 48 h (T1) and 72 h (T2). The main alkaloids from Ayahuasca matrix plants, harmine (HRE) and N,N-dimethyltryptamine (DMT), were also isolated and evaluated. An untargeted metabolomics approach was developed to explore the chemical composition of samples with neuroprotective activity. Ultra-Performance Liquid Chromatography coupled to Electrospray Ionisation and Time-of-Flight (UPLC-ESI-TOF) metabolome data was treated and further analysed using multivariate statistical analyses (MSA): principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA). The metabolites were dereplicated using the Dictionary of Natural Products and an in house database. The main alkaloids were also quantified by UPLC-MS/MS. RESULTS The samples did not cause cytotoxicity in vitro and three of samples intensely increased cell viability at T1. The crude extracts, alkaloid fractions and HRE demonstrated remarkable neuroprotective effect at T2 while the hydroalcoholic fractions demonstrated this neuroprotective effect at T1 and T2. Several compounds from different classes, such as β-carbolines and monoterpene indole alkaloids (MIAs) were revealed correlated with this property by MSA. Additionally, a total of 2419 compounds were detected in both ionisation modes. HRE showed potent neuroprotective action at 72 h, but it was not among the metabolites positively correlated with the most efficacious neuroprotective profile at either time (T1 and T2). Furthermore, DMT was statistically important to differentiate the dataset (VIP value > 1), although it did not exhibit sufficient neuroprotective activity by in vitro assay, neither a positive correlation with T1 and T2 neuroprotective profile, which corroborated the MSA results. CONCLUSION The lower doses of the active samples stimulated neuronal cell proliferation and/or displayed the most efficacious neuroprotection profile, namely by preventing neuronal damage and improving cell viability against 6-OHDA-induced toxicity. Intriguingly, the hydroalcoholic fractions exhibited enhanced neuroprotective effects when compared to other samples and isolated alkaloids. This finding corroborates the significance of a holistic approach. The results demonstrate that Ayahuasca and its base plants have potential applicability for PD treatment and to prevent its progression differently from current drugs to treat PD.
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Affiliation(s)
- Albert Katchborian-Neto
- Chemistry Institute, Federal University of Alfenas, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Wanderleya T Santos
- School of Pharmacy, Federal University of Juiz de Fora, 36036-900, Juiz de Fora, Minas Gerais, Brazil
| | - Karen J Nicácio
- Chemistry Institute, Federal University of Alfenas, 37130-001, Alfenas, Minas Gerais, Brazil
| | - José O A Corrêa
- School of Pharmacy, Federal University of Juiz de Fora, 36036-900, Juiz de Fora, Minas Gerais, Brazil
| | - Michael Murgu
- Waters Corporation, Alameda Tocantins 125, 27th Floor, Alphaville, 06455-020, São Paulo, São Paulo, Brazil
| | - Thaís M M Martins
- Biological Sciences Institute, Federal University of Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Dawidson A Gomes
- Biological Sciences Institute, Federal University of Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Alfredo M Goes
- Biological Sciences Institute, Federal University of Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Marisi G Soares
- Chemistry Institute, Federal University of Alfenas, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Danielle F Dias
- Chemistry Institute, Federal University of Alfenas, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Daniela A Chagas-Paula
- Chemistry Institute, Federal University of Alfenas, 37130-001, Alfenas, Minas Gerais, Brazil.
| | - Ana C C Paula
- School of Pharmacy, Federal University of Juiz de Fora, 36036-900, Juiz de Fora, Minas Gerais, Brazil.
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Kouamé T, Okpekon AT, Bony NF, N’Tamon AD, Gallard JF, Rharrabti S, Leblanc K, Mouray E, Grellier P, Champy P, Beniddir MA, Le Pogam P. Corynanthean-Epicatechin Flavoalkaloids from Corynanthe pachyceras. Molecules 2020; 25:E2654. [PMID: 32517373 PMCID: PMC7321195 DOI: 10.3390/molecules25112654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/05/2020] [Accepted: 06/05/2020] [Indexed: 11/17/2022] Open
Abstract
Epicatechocorynantheines A and B, and epicatechocorynantheidine were isolated from the stem bark of Corynanthe pachyceras. These molecules were pinpointed, and their isolation streamlined, by a molecular networking strategy. The structural elucidation was unambiguously accomplished from HRMS and 1D/2D NMR data. These compounds represent the first examples of corynanthean-type alkaloids tethered with a flavonoid. Epicatechocorynantheidine notably instigated two connections between the monoterpene indole alkaloid and the flavonoid, yielding an unprecedented octacyclic appendage. These flavoalkaloids exerted moderate antiplasmodial activities.
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Affiliation(s)
- Tapé Kouamé
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; (T.K.); (A.D.N.); (S.R.); (K.L.); (P.C.)
- Laboratoire de Chimie Organique et de Substances Naturelles (LCOSN), UFR Sciences des Structures de la Matière et Technologie, Univ. FHB, 22 BP 582 Abidjan 22, Côte d’Ivoire, France;
| | - Aboua Timothée Okpekon
- Laboratoire de Chimie Organique et de Substances Naturelles (LCOSN), UFR Sciences des Structures de la Matière et Technologie, Univ. FHB, 22 BP 582 Abidjan 22, Côte d’Ivoire, France;
| | - Nicaise F. Bony
- Département de Chimie Analytique, Minérale et Générale, Technologie Alimentaire, UFR Sciences Pharmaceutiques et Biologiques, Univ. FHB, 06 B. P. 2256 Abidjan 06, Côte d’Ivoire, France;
| | - Amon Diane N’Tamon
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; (T.K.); (A.D.N.); (S.R.); (K.L.); (P.C.)
- Département de Chimie Analytique, Minérale et Générale, Technologie Alimentaire, UFR Sciences Pharmaceutiques et Biologiques, Univ. FHB, 06 B. P. 2256 Abidjan 06, Côte d’Ivoire, France;
| | - Jean-François Gallard
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, Université Paris-Saclay, 21 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France;
| | - Somia Rharrabti
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; (T.K.); (A.D.N.); (S.R.); (K.L.); (P.C.)
| | - Karine Leblanc
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; (T.K.); (A.D.N.); (S.R.); (K.L.); (P.C.)
| | - Elisabeth Mouray
- Muséum National d′Histoire Naturelle, Unité Molécules de Communication et Adaptation des Micro-organismes, UMR7245, CP54, 57 Rue Cuvier, 75005 Paris, France; (E.M.); (P.G.)
| | - Philippe Grellier
- Muséum National d′Histoire Naturelle, Unité Molécules de Communication et Adaptation des Micro-organismes, UMR7245, CP54, 57 Rue Cuvier, 75005 Paris, France; (E.M.); (P.G.)
| | - Pierre Champy
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; (T.K.); (A.D.N.); (S.R.); (K.L.); (P.C.)
| | - Mehdi A. Beniddir
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; (T.K.); (A.D.N.); (S.R.); (K.L.); (P.C.)
| | - Pierre Le Pogam
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France; (T.K.); (A.D.N.); (S.R.); (K.L.); (P.C.)
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Genus Ophiorrhiza: A Review of Its Distribution, Traditional Uses, Phytochemistry, Biological Activities and Propagation. Molecules 2020; 25:molecules25112611. [PMID: 32512727 PMCID: PMC7321107 DOI: 10.3390/molecules25112611] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/15/2020] [Accepted: 04/15/2020] [Indexed: 11/17/2022] Open
Abstract
Almost 50 species of Ophiorrhiza plants were reviewed in this work and the main objective is to critically analyse their distribution, phytochemical content, biological activity, and propagation. Moreover, the information would be useful in promoting the relevant uses of the plant, especially in the medicinal fields based on in vitro and in vivo studies. To this end, scientific sources, including theses, PubMed, Google Scholar, International Islamic University Malaysia IIUM EBSCO, PubChem, and Elsevier, were accessed for publications regarding the Ophiorrhiza genus in this review. Scientific literature regarding the Ophiorrhiza plants revealed their wide distribution across Asia and the neighbouring countries, whereby they were utilised as traditional medicine to treat various diseases. In particular, various active compounds, such as alkaloids, flavonoids, and terpenoids, were reported in the plant. Furthermore, the Ophiorrhiza species showed highly diverse biological activities, such as anti-cancer, antiviral, antimicrobial, and more. The genus propagation reported could produce a high quality and quantity of potent anticancer compound, namely camptothecin (CPT). Hence, it is believed that the relevant uses of natural compounds present in the plants can replace the existing crop of synthetic anticancer drugs associated with a multitude of unbearable side effects. Additionally, more future studies on the Ophiorrhiza species should be undertaken to establish the links between its traditional uses, active compounds, and pharmacological activities reported.
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Lau KH, Bhat WW, Hamilton JP, Wood JC, Vaillancourt B, Wiegert-Rininger K, Newton L, Hamberger B, Holmes D, Hamberger B, Buell CR. Genome assembly of Chiococca alba uncovers key enzymes involved in the biosynthesis of unusual terpenoids. DNA Res 2020; 27:dsaa013. [PMID: 32642754 PMCID: PMC7433921 DOI: 10.1093/dnares/dsaa013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 06/29/2020] [Indexed: 11/13/2022] Open
Abstract
Chiococca alba (L.) Hitchc. (snowberry), a member of the Rubiaceae, has been used as a folk remedy for a range of health issues including inflammation and rheumatism and produces a wealth of specialized metabolites including terpenes, alkaloids, and flavonoids. We generated a 558 Mb draft genome assembly for snowberry which encodes 28,707 high-confidence genes. Comparative analyses with other angiosperm genomes revealed enrichment in snowberry of lineage-specific genes involved in specialized metabolism. Synteny between snowberry and Coffea canephora Pierre ex A. Froehner (coffee) was evident, including the chromosomal region encoding caffeine biosynthesis in coffee, albeit syntelogs of N-methyltransferase were absent in snowberry. A total of 27 putative terpene synthase genes were identified, including 10 that encode diterpene synthases. Functional validation of a subset of putative terpene synthases revealed that combinations of diterpene synthases yielded access to products of both general and specialized metabolism. Specifically, we identified plausible intermediates in the biosynthesis of merilactone and ribenone, structurally unique antimicrobial diterpene natural products. Access to the C. alba genome will enable additional characterization of biosynthetic pathways responsible for health-promoting compounds in this medicinal species.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Bjoern Hamberger
- Department of Biochemistry and Molecular Biology
- MSU AgBioResearch
| | - C Robin Buell
- Department of Plant Biology
- MSU AgBioResearch
- Plant Resilience Institute, Michigan State University, East Lansing, MI 48824, USA
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Tava A, Biazzi E, Ronga D, Avato P. Identification of the Volatile Components of Galium verum L. and Cruciata leavipes Opiz from the Western Italian Alps. Molecules 2020; 25:molecules25102333. [PMID: 32429453 PMCID: PMC7287616 DOI: 10.3390/molecules25102333] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 11/29/2022] Open
Abstract
The chemical composition of the volatile fraction from Galium verum L. (leaves and flowers) and Cruciata laevipes Opiz (whole plant), Rubiaceae, was investigated. Samples from these two plant species were collected at full bloom in Val di Susa (Western Alps, Turin, Italy), distilled in a Clevenger-type apparatus, and analyzed by GC/FID and GC/MS. A total of more than 70 compounds were identified, making up 92%–98% of the total oil. Chemical investigation of their essential oils indicated a quite different composition between G. verum and C. laevipes, both in terms of the major constituents and the dominant chemical classes of the specialized metabolites. The most abundant compounds identified in the essential oils from G. verum were 2-methylbenzaldheyde (26.27%, corresponding to 11.59 μg/g of fresh plant material) in the leaves and germacrene D (27.70%; 61.63 μg/g) in the flowers. C. laevipes essential oils were instead characterized by two sesquiterpenes, namely β-caryophyllene (19.90%; 15.68 μg/g) and trans-muurola-4(15),5-diene (7.60%; 5.99 μg/g); two phenylpropanoids, benzyl alcohol (8.30%; 6.71 μg/g), and phenylacetaldehyde (7.74%; 6.26 μg/g); and the green-leaf alcohol cis-3-hexen-1-ol (9.69%; 7.84 μg/g). The ecological significance of the presence of such compounds is discussed.
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Affiliation(s)
- Aldo Tava
- CREA Research Centre for Animal Production and Aquaculture, viale Piacenza 29, 26900 Lodi, Italy; (E.B.); (D.R.)
- Correspondence: ; Tel.: +39-0371-40471; Fax: +39-0371-31853
| | - Elisa Biazzi
- CREA Research Centre for Animal Production and Aquaculture, viale Piacenza 29, 26900 Lodi, Italy; (E.B.); (D.R.)
| | - Domenico Ronga
- CREA Research Centre for Animal Production and Aquaculture, viale Piacenza 29, 26900 Lodi, Italy; (E.B.); (D.R.)
- Centro Ricerche Produzioni Animali—CRPA S.p.A., viale Timavo, n. 43/2, 42121 Reggio Emilia, Italy
| | - Pinarosa Avato
- Dipartimento di Farmacia-Scienze del Farmaco, Università, via Orabona 4, 70125 Bari, Italy;
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Li YW, Chi Q, Feng T, Xiao H, Li L, Wang X. Interactions of indole alkaloids with myoglobin: A mass spectrometry based spectrometric and computational method. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8656. [PMID: 31721336 DOI: 10.1002/rcm.8656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Interactions of drug molecules and proteins play important roles in physiological and pathological processes in vivo. It is of significance to establish a reliable strategy for studying protein-drug ligand interactions and would be helpful for the design and screening of new drugs in pharmacological research. METHODS The interactions between four indole alkaloids (IAs) extracted from Ophiorrhiza japonica (O. japonica) and myoglobin (Mb) protein were investigated using a multi-spectrometric and computational method of native electrospray ionization mass spectrometry (native ESI-MS), hydrogen/deuterium exchange mass spectrometry (HDX-MS), circular dichroism (CD) and molecular docking (MD). RESULTS The IA-bound Mb complexes were analyzed using native ESI-MS, with the obtained protein-to-ligand stoichiometry at 1:1, 1:2 and 1:3. Binding constants were measured according to the interpretation of MS spectra. MD complemented MS measurements, probing the binding sites and modes of the four IAs to Mb. Analyses involving CD and HDX-MS demonstrated that exposure to IAs could affect the conformation of Mb by decreasing the α-helix content and made Mb more susceptible to HDX at the backbone. CONCLUSIONS A new MS-based integrated analysis method has been developed to successfully study the interactions of Mb and IAs extracted from O. japonica. The experimental and calculation results have good consistency, revealing all of the four IA molecules could bind to Mb to form 1:1, 1:2 and 1:3 Mb-IA complexes. The order of binding ability of these IAs to Mb was ophiorrhine B > compound C > ophiorrhine A > compound D. CD and HDX-MS results indicated that binding with IAs destabilizes Mb. HDX-MS analysis suggests that Mb becomes more susceptible to HDX, indicating that binding with IAs destabilizes the structure of Mb. In addition, the interaction with IAs affected the overall structure of Mb, ascribed to the decrease of α-helix content and less folding of the backbone.
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Affiliation(s)
- Ya-Wen Li
- College of Chemistry and Materials Science, South-Central University for Nationalities, 430074, Wuhan, China
| | - Quan Chi
- College of Chemistry and Materials Science, South-Central University for Nationalities, 430074, Wuhan, China
| | - Tao Feng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, 430074, Wuhan, China
| | - Huaming Xiao
- College of Chemistry and Materials Science, South-Central University for Nationalities, 430074, Wuhan, China
| | - Linghe Li
- College of Chemistry and Materials Science, South-Central University for Nationalities, 430074, Wuhan, China
| | - Xian Wang
- College of Chemistry and Materials Science, South-Central University for Nationalities, 430074, Wuhan, China
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Zhang JG, Huang XY, Ma YB, Chen JJ, Geng CA. UFLC-PDA-MS/MS Profiling of Seven Uncaria Species Integrated with Melatonin/5-Hydroxytryptamine Receptors Agonistic Assay. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:23-36. [PMID: 31933166 PMCID: PMC7046893 DOI: 10.1007/s13659-020-00230-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 01/06/2020] [Indexed: 05/07/2023]
Abstract
Uncariae Ramulus Cum Uncis (Gou-Teng), the dried hook-bearing stems of several Uncaria plants (Rubiaceae), is a well-known herbal medicine in China. The clinical application of Gou-Teng is bewildered for the morphological and chemical similarity between different species. In order to discern their chemical and biological difference, an ultra-fast liquid chromatography equipped with ion trap time-of-flight mass spectrometry (UFLC-IT/TOF-MS) combining with melatonin (MT1 and MT2) and 5-hydroxytryptamine (5-HT1A and 5-HT2C) receptors agonistic assay in vitro was conducted on seven Uncaria species. As a result, 57 compounds including 35 indole alkaloids, ten flavonoids, five triterpenoids, five chlorogenic analogues, and two other compounds were characterized based on their MS/MS patterns and UV absorptions. Specifically, cadambine-type and corynanthein-type alkaloids were exclusively present in U.rhynchophylla and U.scandens, whereas corynoxine-type alkaloids were commonly detected in all the seven Uncaria plants. Three Uncaria species, U. rhynchophylla, U. macrophylla, and U. yunnanensis showed obviously agnostic activity on four neurotransmitter receptors (MT1, MT2, 5-HT1A, and 5-HT2C). This first-time UFLCMS-IT-TOF analyses integrated with biological assay on seven Uncaria plants will provide scientific viewpoints for the clinical application of Gou-Teng.
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Affiliation(s)
- Jian-Gang Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory of Natural Medicinal Chemistry, 132# Lanhei Road, Kunming, 650201, Yunnan, People's Republic of China
| | - Xiao-Yan Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory of Natural Medicinal Chemistry, 132# Lanhei Road, Kunming, 650201, Yunnan, People's Republic of China
| | - Yun-Bao Ma
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory of Natural Medicinal Chemistry, 132# Lanhei Road, Kunming, 650201, Yunnan, People's Republic of China
| | - Ji-Jun Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory of Natural Medicinal Chemistry, 132# Lanhei Road, Kunming, 650201, Yunnan, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Chang-An Geng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory of Natural Medicinal Chemistry, 132# Lanhei Road, Kunming, 650201, Yunnan, People's Republic of China.
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Eltamany EE, Nafie MS, Khodeer DM, El-Tanahy AHH, Abdel-Kader MS, Badr JM, Abdelhameed RFA. Rubia tinctorum root extracts: chemical profile and management of type II diabetes mellitus. RSC Adv 2020; 10:24159-24168. [PMID: 35516188 PMCID: PMC9055131 DOI: 10.1039/d0ra03442h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/24/2020] [Accepted: 06/16/2020] [Indexed: 12/30/2022] Open
Abstract
The chemical and biological profiling of the root extracts of Rubia tinctorum was performed. The activities of different extracts were determined considering the antidiabetic effect against type II diabetes mellitus together with anti-obesity and hepatoprotective effects and lipid profile. The methanolic extract of Rubia tinctorum exhibited significant results in decreasing body weight, improving lipid profile, normalizing hyperglycaemia, insulin resistance, hyperinsulinemia. Additionally, it showed enhancement of liver tissue structure and function. The methanolic extract, being the most significant one, was subjected to LC-HRMS analysis to determine its chemical constituents. Finally, the chemical constituents were evaluated by molecular docking study that was carried out to identify the interaction of a panel of 45 compounds in silico and to correlate the structures to their anti-diabetic activity. Among the tested compounds, 1-hydroxy-2-hydroxymethyl anthra-quinone and naringenin-7-O-glucoside showed the most potent activity as α-amylase inhibitors. The chemical and biological profiling of the root extracts of Rubia tinctorum was performed.![]()
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Affiliation(s)
- Enas E. Eltamany
- Department of Pharmacognosy
- Faculty of Pharmacy
- Suez Canal University
- Ismailia 41522
- Egypt
| | - Mohamed S. Nafie
- Department of Chemistry
- Faculty of Science
- Suez Canal University
- Ismailia 41522
- Egypt
| | - Dina M. Khodeer
- Department of Pharmacology & Toxicology
- Faculty of Pharmacy
- Suez Canal University
- Ismailia 41522
- Egypt
| | | | - Maged S. Abdel-Kader
- Department of Pharmacognosy
- College of Pharmacy
- Prince Sattam Bin Abdulaziz University
- 173, AlKharj 11942
- Saudi Arabia
| | - Jihan M. Badr
- Department of Pharmacognosy
- Faculty of Pharmacy
- Suez Canal University
- Ismailia 41522
- Egypt
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Singh B, Sharma RA. Indian Morinda species: A review. Phytother Res 2019; 34:924-1007. [PMID: 31840355 DOI: 10.1002/ptr.6579] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 11/14/2019] [Accepted: 11/14/2019] [Indexed: 01/08/2023]
Abstract
Morinda is a largest genus of Rubiaceae family, and its 11 species are found in India. In India, plant species are known by several common names as great morinda, Indian mulberry, noni, beach mulberry and cheese fruit. Various Morinda products (capsules, tablets, skin products and fruit juices) are available in the market, used by people for treatment of several health complaints. A diversity of phytochemicals including iridoids, flavonoids, flavonoid glycosides, anthraquinones, coumarins, lignanas, noniosides, phenolics and triterpenoids have been reported from Morinda species. Morinda species are used in the treatment of inflammation, cancer, diabetes, psyquiatric disorders, and bacterial and viral infections. The noni fruit juice (Morinda citrifolia) and its products are used clinically in the treatment of cancer, hypertension and cervical spondylosis affecting patients. M. citrifolia fuit juice, with different doses, is used in the maintaining blood pressure and reducing of superoxides, HDL and LDL levels. Similarly, oligosaccharide capsules and tablets of root extract of M. officinalis are recommended as medicine for the treatment of kidney problems and sexual dysfunctions of patients. The toxicological studies revealed that higher doses of fruit juice (4,000 or 5,000 mg/kg) of M. citrifolia for 2 or more months cause toxic effects on liver and kidneys. M. officinalis root extracts (ethanolic and aqueous) are found fully safe during treatment of diseases. A large number of reviews are available on M. citrifolia but very few studies are conducted on other Indian Morinda species. This review reports the comprehensive knowledge on state-wise distribution, botany, ethnomedicinal uses, phytochemistry, pharmacological activities, clinical applications and toxicological evaluations of 11 species of Morinda found in India.
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Affiliation(s)
- Bharat Singh
- Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
| | - Ram A Sharma
- Department of Botany, University of Rajasthan, Jaipur, India
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Anti-Amyloidogenic and Cyclooxygenase Inhibitory Activity of Guettarda speciosa. Molecules 2019; 24:molecules24224112. [PMID: 31739473 PMCID: PMC6891569 DOI: 10.3390/molecules24224112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/05/2019] [Accepted: 11/11/2019] [Indexed: 02/07/2023] Open
Abstract
Guettarda speciosa is known in traditional folk medicine for treating cough, cold, sore throat, fever, wounds, epilepsy, and headaches. To discover the scientific pharmacological potential of G. speciosa, we explore its anti-inflammatory, cytotoxicity, and inhibition of amyloid-beta (Aβ) aggregation effects. Cyclooxygenase assay of the G. speciosa CHCl3 (GSC) extract and G. speciosa MeOH (GSM) extract are more selective to COX-1 inhibition with a 50% inhibitory concentration (IC50) of 3.56 μg/mL for the GSC extract and 4.98 μg/mL for the GSM extract. Neuroblastoma SH-SY5Y inhibition and thioflavin T assay amyloid-beta (Aβ) aggregate inhibition of the GSM and GSC extracts showed their potential therapeutic effects against Alzheimer's disease. The putative compounds from the LC-MS analysis could be responsible for the observed activities. The results suggest that G. speciosa possesses anti-inflammatory and anti-neurodegenerative properties and a promising lead as a source of pharmacologically active compounds.
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Sub-chronic oral toxicity assessment (90 days) of ethanolic fraction of leaves of Neurocalyx calycinus (R. Br. ex Benn.) Rob. in rodents: A lesser known ethnomedicinal plant from the Cholanaickan tribal community, India. Interdiscip Toxicol 2019; 11:221-235. [PMID: 31736637 PMCID: PMC6853008 DOI: 10.2478/intox-2018-0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 10/13/2017] [Indexed: 12/20/2022] Open
Abstract
The objective of the present study was to evaluate the safety of long term consumption of ethanolic fraction of Neurocalyx calycinus leaves (NCEF) in rodents. The NCEF was subjected to detect the presence of various phytoconstituents. In acute oral toxicity study, graded doses of NCEF was administered in mice and were observed up to 14 days. In sub-chronic oral toxicity study, NCEF was administered to Wistar rats at doses of 50, 500 and 1000 mg/kg b.w. per day for 90 days and after that, observed up to 28 days. NCEF showed the presence of alkaloids, steroids, phenolics and glycosides. In acute toxicity study, there was no mortality and no behavioural signs of toxicity at the highest dose level (6400 mg/kg b.w.). In sub-chronic oral toxicity study, there were no significant difference observed in the consumption of food and water, body weight and relative organ weights. Haematological, serum biochemical, hepatic oxidative stress marker analysis and urine analysis revealed the non-adverse effects of prolonged oral consumption of NCEF. The histopathologic examination did not show any differences in vital organs. Based on our findings, NCEF, at dosage levels up to 1000 mg/kg b.w., is non-toxic and safe for long term oral consumption.
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Ajiboye AT, Asekun OT, Familoni OB, Ali Z, Wang YH, Ghanadian M, Zulfiqar F, Larbie C, Samuel OA, Khan IA. Phytochemicals isolated from the root bark of Sarcocephalus latifolius (Sm.) E.A.Bruce. BIOCHEM SYST ECOL 2019. [DOI: 10.1016/j.bse.2019.05.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Casciaro B, Calcaterra A, Cappiello F, Mori M, Loffredo MR, Ghirga F, Mangoni ML, Botta B, Quaglio D. Nigritanine as a New Potential Antimicrobial Alkaloid for the Treatment of Staphylococcus aureus-Induced Infections. Toxins (Basel) 2019; 11:toxins11090511. [PMID: 31480508 PMCID: PMC6783983 DOI: 10.3390/toxins11090511] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/26/2019] [Accepted: 08/30/2019] [Indexed: 12/20/2022] Open
Abstract
Staphylococcus aureus is a major human pathogen causing a wide range of nosocomial infections including pulmonary, urinary, and skin infections. Notably, the emergence of bacterial strains resistant to conventional antibiotics has prompted researchers to find new compounds capable of killing these pathogens. Nature is undoubtedly an invaluable source of bioactive molecules characterized by an ample chemical diversity. They can act as unique platform providing new scaffolds for further chemical modifications in order to obtain compounds with optimized biological activity. A class of natural compounds with a variety of biological activities is represented by alkaloids, important secondary metabolites produced by a large number of organisms including bacteria, fungi, plants, and animals. In this work, starting from the screening of 39 alkaloids retrieved from a unique in-house library, we identified a heterodimer -carboline alkaloid, nigritanine, with a potent anti-Staphylococcus action. Nigritanine, isolated from Strychnos nigritana, was characterized for its antimicrobial activity against a reference and three clinical isolates of S. aureus. Its potential cytotoxicity was also evaluated at short and long term against mammalian red blood cells and human keratinocytes, respectively. Nigritanine showed a remarkable antimicrobial activity (minimum inhibitory concentration of 128 µM) without being toxic in vitro to both tested cells. The analysis of the antibacterial activity related to the nigritanine scaffold furnished new insights in the structure-activity relationships (SARs) of -carboline, confirming that dimerization improves its antibacterial activity. Taking into account these interesting results, nigritanine can be considered as a promising candidate for the development of new antimicrobial molecules for the treatment of S. aureus-induced infections.
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Affiliation(s)
- Bruno Casciaro
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome 00161, Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, Rome 00185, Italy
| | - Floriana Cappiello
- Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, Rome 00185, Italy
| | - Mattia Mori
- Department of Biotechnology, Chemistry and Pharmacy, "Department of Excellence 2018-2022", University of Siena, via Aldo Moro 2, Siena 53100, Italy
| | - Maria Rosa Loffredo
- Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, Rome 00185, Italy
| | - Francesca Ghirga
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome 00161, Italy.
| | - Maria Luisa Mangoni
- Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, P.le Aldo Moro 5, Rome 00185, Italy.
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, Rome 00185, Italy
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, "Department of Excellence 2018-2022", Sapienza University of Rome, P.le Aldo Moro 5, Rome 00185, Italy
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Wolff T, Valente LM, Barboza RS, Berrueta LA, Gallo B, Gomes M. Iridoid glucosides from the stems of three bioactive Brazilian Faramea species (Rubiaceae). BIOCHEM SYST ECOL 2019. [DOI: 10.1016/j.bse.2019.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Leaves of Duroia longiflora: Isolation of a Biflavanoid and Histochemical Analysis. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19850966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Cruz FSD, Pacheco de Araújo MG, Nunez CV. Leaves of Duroia longiflora: Isolation of a Biflavanoid and Histochemical Analysis. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19849779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Fabiele Souza da Cruz
- Bioprospection and Biotechnology Laboratory, National Institute of Amazonian Research, Manaus, Brazil
| | | | - Cecilia Veronica Nunez
- Bioprospection and Biotechnology Laboratory, National Institute of Amazonian Research, Manaus, Brazil
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Aro AO, Dzoyem JP, Awouafack MD, Selepe MA, Eloff JN, McGaw LJ. Fractions and isolated compounds from Oxyanthus speciosus subsp. stenocarpus (Rubiaceae) have promising antimycobacterial and intracellular activity. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:108. [PMID: 31117999 PMCID: PMC6532187 DOI: 10.1186/s12906-019-2520-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 05/09/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Tuberculosis is a deadly disease caused by Mycobacterium species. The use of medicinal plants is an ancient global practice for the treatment and prevention of diverse ailments including tuberculosis. The aim of this study was to isolate and characterize antimycobacterial compounds by bioassay-guided fractionation of the acetone leaf extract of Oxyanthus speciosus. METHODS A two-fold serial microdilution method was used to determine the minimum inhibitory concentration (MIC) against mycobacteria. Cytotoxicity and nitric oxide inhibitory activity of the isolated compounds was determined to evaluate in vitro safety and potential anti-inflammatory activity. Intracellular efficacy of the crude extract against Mycobacterium-infected macrophages was also determined. RESULTS Two compounds were isolated and identified as lutein (1) and rotundic acid (2). These had good antimycobacterial activity against the four mycobacteria tested with MIC values ranging from 0.013 to 0.1 mg/mL. Rotundic acid had some cytotoxicity against C3A human liver cells. Lutein was not cytotoxic at the highest tested concentration (200 μg/mL) and inhibited nitric oxide production in RAW 264.7 macrophages by 94% at a concentration of 25 μg/mL. The acetone crude extract (120 μg/mL) of O. speciosus had intracellular antimycobacterial activity, reducing colony forming units by more than 90%, displaying bactericidal efficacy in a dose and time-dependent manner. CONCLUSION This study provides good proof of the presence of synergism between different compounds in extracts and fractions. It is also the first report of the antimycobacterial activity of lutein and rotundic acid isolated from Oxyanthus speciosus. The promising activity of the crude extract of O. speciosus both in vitro and intracellularly in an in vitro macrophage model suggests its potential for development as an anti- tuberculosis (TB) herbal medicine.
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Affiliation(s)
- Abimbola O. Aro
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110 South Africa
| | - Jean P. Dzoyem
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110 South Africa
- Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Maurice D. Awouafack
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110 South Africa
- Laboratory of Natural Products Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.OBox 67, Dschang, Cameroon
| | | | - Jacobus N. Eloff
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110 South Africa
| | - Lyndy J. McGaw
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110 South Africa
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