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Teixeira CJR, Dos Santos BP, Saraiva CJC, Pedroza HDP, Oloris SCS, Soto-Blanco B. TLC and HPLC methods for the determination of plumbagin for the diagnosis of poisoning by Plumbago scandens L. Toxicon 2024; 239:107634. [PMID: 38307130 DOI: 10.1016/j.toxicon.2024.107634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/04/2024]
Abstract
Plumbago scandens L. (Plumbaginaceae) occurs in all regions of Brazil. It has been described as toxic to cattle and goats. Caustic lesions in the upper digestive tract characterize poisoning. P. scandens contains a naphthoquinone named plumbagin, which presents high cytotoxic activity. Plumbago auriculata Lam., a widely used ornamental plant, is considered potentially toxic, but there is limited data about its toxicity. This work aimed to validate analytical methodologies for determining the levels of plumbagin in samples of leaves, stems, and rumen content to be used as an auxiliary chemical marker in the laboratory diagnosis of intoxication. One methodology used thin layer chromatography (TLC), and another used high-performance liquid chromatography (HPLC). The presence of palisade grass (Urochloa brizantha (Hochst. ex A.Rich.) R.D.Webster), Guinea grass (Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs), corn silage, and rumen content did not interfere with plumbagin in the two methodologies. The TLC methodology generates qualitative results but is simple to implement and has a low cost. The HPLC methodology showed a limit of detection (LOD) of 0.01 μg/mL and a limit of quantification (LOQ) of 0.05 μg/mL. Leaf and stem samples of P. scandens evaluated showed high levels of plumbagin (0.261 ± 0.087 % and 0.327 ± 0.055 %, respectively). In contrast, leaves of P. auriculata did not show detectable levels of the toxin, and some stem samples showed low levels (up to 0.000114 %). Thus, these methodologies can be used to confirm or rule out the consumption of P. scandens in rumen content from animals suspected of poisoning.
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Affiliation(s)
- Carlos José Rocha Teixeira
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Avenida Presidente Antônio Carlos 6627, Belo Horizonte, MG, 31275-013, Brazil
| | - Barbara Pereira Dos Santos
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Avenida Presidente Antônio Carlos 6627, Belo Horizonte, MG, 31275-013, Brazil
| | - Carolina Julia Costa Saraiva
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Avenida Presidente Antônio Carlos 6627, Belo Horizonte, MG, 31275-013, Brazil
| | - Heloísa de Paula Pedroza
- Centro Universitário Presidente Antônio Carlos (UNIPAC), Rodovia MG 482, Km 3, Conselheiro Lafaiete, MG, Brazil
| | - Silvia Catarina Salgado Oloris
- Serviço de Biologia Celular, Diretoria de Pesquisa e Desenvolvimento, Fundação Ezequiel Dias (Funed), Rua Conde Pereira Carneiro 80, Belo Horizonte, MG, 30510-010, Brazil
| | - Benito Soto-Blanco
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Avenida Presidente Antônio Carlos 6627, Belo Horizonte, MG, 31275-013, Brazil.
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Peres RB, Batista MM, Bérenger ALR, Camillo FDC, Figueiredo MR, Soeiro MDNC. Antiparasitic Activity of Plumbago auriculata Extracts and Its Naphthoquinone Plumbagin against Trypanosoma cruzi. Pharmaceutics 2023; 15:pharmaceutics15051535. [PMID: 37242777 DOI: 10.3390/pharmaceutics15051535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/03/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Chagas disease (CD) caused by the protozoan Trypanosoma cruzi affects more than six million people worldwide. Treatment is restricted to benznidazole (Bz) and nifurtimox (Nf) that display low activity in the later chronic stage besides triggering toxic events that result in treatment abandonment. Therefore, new therapeutic options are necessary. In this scenario, natural products emerge as promising alternatives to treat CD. In the family Plumbaginaceae, Plumbago sp. exhibits a broad spectrum of biological and pharmacological activities. Thus, our main objective was to evaluate, in vitro and in silico, the biological effect of crude extracts of root and of aerial parts of P. auriculata, as well as its naphthoquinone Plumbagin (Pb) against T. cruzi. The phenotypic assays revealed potent activity of the root extract against different forms (trypomastigote and intracellular forms) and strains (Y and Tulahuen), with a compound concentration that reduced 50% of the number of the parasite (EC50) values ranging from 1.9 to 3.9 µg/mL. In silico analysis showed that Pb is predicted to have good oral absorption and permeability in Caco2 cells, besides excellent probability of absorption by human intestinal cells, without toxic or mutagenic potential effects, not being predicted as a substrate or inhibitor of P-glycoprotein. Pb was as potent as Bz against intracellular forms and displayed a superior trypanosomicidal effect (about 10-fold) in bloodstream forms (EC50 = 0.8 µM) as compared to the reference drug (8.5 µM). The cellular targets of Pb on T. cruzi were evaluated using electron microscopy assays and the findings on bloodstream trypomastigotes showed several cellular insults related to the autophagic process. Regarding toxicity in mammalian cells, the root extracts and the naphthoquinone present a moderate toxic profile on fibroblasts and cardiac cell lines. Then, aiming to reduce host toxicity, the root extract and Pb were tested in combination with Bz, and the data showed additive profiles with the sum of the fractional inhibitory concentration indexes (ΣFICIs) being 1.45 and 0.87, respectively. Thus, our work reveals the promising antiparasitic activity of Plumbago auriculata crude extracts and its purified naphthoquinone Plumbagin against different forms and strains of Trypanosoma cruzi in vitro.
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Affiliation(s)
- Raiza Brandão Peres
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 210360-040, Brazil
| | - Marcos Meuser Batista
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 210360-040, Brazil
| | - Ana Luíza Rangel Bérenger
- Laboratório de Tecnologia para Biodiversidade em Saúde-TecBio/LDFito, Instituto de Tecnologia em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 21041-250, Brazil
| | - Flávia da Cunha Camillo
- Laboratório de Tecnologia para Biodiversidade em Saúde-TecBio/LDFito, Instituto de Tecnologia em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 21041-250, Brazil
| | - Maria Raquel Figueiredo
- Laboratório de Tecnologia para Biodiversidade em Saúde-TecBio/LDFito, Instituto de Tecnologia em Fármacos (Farmanguinhos), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 21041-250, Brazil
| | - Maria de Nazaré Correia Soeiro
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro 210360-040, Brazil
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Li W, Gao S, Lei T, Jiang L, Duan Y, Zhao Z, Li J, Shi L, Yang L. Transcriptome Analysis Revealed a Cold Stress-Responsive Transcription Factor, PaDREB1A, in Plumbago auriculata That Can Confer Cold Tolerance in Transgenic Arabidopsis thaliana. Front Plant Sci 2022; 13:760460. [PMID: 35310656 PMCID: PMC8931719 DOI: 10.3389/fpls.2022.760460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
The tropical plant Plumbago auriculata can tolerate subzero temperatures without induction of apoptosis after cold acclimation in autumn, making it more cold tolerant than conventional tropical plants. In this study, we found that low temperatures significantly affected the photosynthetic system of P. auriculata. Using transcriptome sequencing, PaDREB1A was identified as a key transcription factor involved in the response to cold stress in P. auriculata. This transcription factor may be regulated by upstream JA signaling and regulates downstream ERD4 and ERD7 expression to resist cold stress. Overexpression of PaDREB1A significantly enhanced freezing resistance, protected the photosynthetic system, and enhanced the ROS scavenging mechanism under cold stress in Arabidopsis thaliana. Additionally, PaDREB1A significantly enhanced the expression of CORs and CAT1 in A. thaliana, which further activated the downstream pathway to enhance plant cold tolerance. This study explored the possible different regulatory modes of CBFs in tropical plants and can serve as an important reference for the introduction of tropical plants to low-temperature regions.
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Affiliation(s)
- Wenji Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Suping Gao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Ting Lei
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Liqiong Jiang
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu, China
| | - Yifan Duan
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Zian Zhao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Jiani Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Lisha Shi
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
| | - Lijuan Yang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China
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Govindan L, Anbazhagan S, Altemimi AB, Lakshminarayanan K, Kuppan S, Pratap-Singh A, Kandasamy M. Efficacy of Antimicrobial and Larvicidal Activities of Green Synthesized Silver Nanoparticles Using Leaf Extract of Plumbago auriculata Lam. Plants (Basel) 2020; 9:plants9111577. [PMID: 33202641 PMCID: PMC7698226 DOI: 10.3390/plants9111577] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/05/2020] [Accepted: 11/10/2020] [Indexed: 11/16/2022]
Abstract
This work reports the synthesis of silver nanoparticles (AgNPs) using aqueous extract of Plumbago auriculata, and evaluates their antibacterial and larvicidal activities. The synthesized silver nanoparticles were characterized by various spectroscopy techniques, such as FTIR, XRD, TEM, EDX, Zeta potential, and DLS. The synthesized AgNPs exhibited significant antibacterial activity against Gram-positive and Gram-negative bacteria, such as Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Klebsiella pneumoniae. Furthermore, synthesized nanoparticles inhibited the fourth instars larvae of Aedes aegypti and Culex quinquefasciatus at the concentration of 45.1 and 41.1 µg/mL respectively. Results of dose-dependent studies showed that synthesized nanoparticles were also effective at low concentrations. Molecular docking studies performed with the salivary protein and odorant-binding protein of Aedes aegypti and Culex quinquefasciatus demonstrated that the naphthoquinone compound plumbagin exhibited reliable binding affinity towards the two enzymes. The findings thus reveal that the plant extract and its nanoparticles can be a better alternative to available chemicals to control mosquitos.
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Affiliation(s)
- Lakshmanan Govindan
- CAS in Botany, University of Madras, Guindy Campus, Chennai 600 025, India; (L.G.); (S.A.); (M.K.)
- Bharath Institute of Higher Education and Research, Chennai 600 073, India
| | - Sathiyaseelan Anbazhagan
- CAS in Botany, University of Madras, Guindy Campus, Chennai 600 025, India; (L.G.); (S.A.); (M.K.)
| | - Ammar B. Altemimi
- Food Sciences Department, College of Agiculture, University of Basrah, Basrah 61004, Iraq
- Correspondence: (A.B.A.); (A.P.-S.); Tel.: +1-604-822-5944 (A.P.-S.)
| | | | - Sivaranjan Kuppan
- Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjung Malim 35900, Malaysia;
| | - Anubhav Pratap-Singh
- Food, Nutrition & Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Correspondence: (A.B.A.); (A.P.-S.); Tel.: +1-604-822-5944 (A.P.-S.)
| | - Murugesan Kandasamy
- CAS in Botany, University of Madras, Guindy Campus, Chennai 600 025, India; (L.G.); (S.A.); (M.K.)
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Jaryal N, Kaur H. Plumbago auriculata leaf extract-mediated AgNPs and its activities as antioxidant, anti-TB and dye degrading agents. J Biomater Sci Polym Ed 2017; 28:1847-1858. [PMID: 28697688 DOI: 10.1080/09205063.2017.1354673] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In the present work, silver nanoparticles have been biosynthesized by utilizing the alcoholic extract of Plumbago auriculata. The optimization of reaction conditions was carried out by monitoring the reactions with the help of UV-Visible absorption spectroscopy. The characterization of AgNP was carried out by infrared spectroscopy, transmission electron microscopy and X-Ray diffraction (XRD) studies. The biogenic AgNPs were tested against Mycobacterium tuberculosis using Microplate Almar Blue assay (MABA) and their antioxidant activity was also evaluated. The silver nanoparticles were also assessed for their reducing activity against organic dyes. The AgNPs were spherical in shape with size ranging from 15 to 45 nm with face centered cubic geometry as revealed by XRD analysis. The AgNPs possessed good antitubercular activity with MIC value of 1.6 μg/ml and these also exhibited promising antioxidant activity with IC50 value of 28.2. Furthermore, AgNPs also reduced congo red within 2 h and malachite green was degraded within 40 min. The present work demonstrated the utilization of P. auriculata for biosynthesis of AgNP which could be a potential candidate for antitubercular drug development and it could also be used as an antioxidant agent. The application of AgNP in reducing agent can be further extended and evaluated for purification of effluent water from textile industries.
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Affiliation(s)
- Neeraj Jaryal
- a Department of Chemistry , Lovely Professional University , Phagwara , India
| | - Harpreet Kaur
- a Department of Chemistry , Lovely Professional University , Phagwara , India
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