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Ngnameko CR, Marchetti L, Zambelli B, Quotadamo A, Roncarati D, Bertelli D, Njayou FN, Smith SI, Moundipa PF, Costi MP, Pellati F. New Insights into Bioactive Compounds from the Medicinal Plant Spathodea campanulata P. Beauv. and Their Activity against Helicobacter pylori. Antibiotics (Basel) 2020; 9:antibiotics9050258. [PMID: 32429263 PMCID: PMC7277392 DOI: 10.3390/antibiotics9050258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 12/24/2022] Open
Abstract
The medicinal plant Spathodea campanulata P. Beauv. (Bignoniaceae) has been traditionally applied for the prevention and treatment of diseases of the kidney and urinary system, the skin, the gastrointestinal tract, and inflammation in general. The present work shows for the first time how chemical components from this plant inhibit Helicobacter pylori growth by urease inhibition and modulation of virulence factors. The crude extract and the main fractions of S. campanulata bark were tested on H. pylori isolated strains and the active ones were further fractionated. Fractions and sub-fractions of the plant crude extract were characterized by ultra-high-performance liquid chromatographic tandem high resolution-mass spectrometry detection (UHPLC-HRMS). Several phenolics and triterpenoids were identified. Among the sub-fractions obtained, SB2 showed the capacity to inhibit H. pylori urease in a heterologous bacterial model. One additional sub-fraction (SE3) was able to simultaneously modulate the expression of two adhesins (HopZ and BabA) and one cytotoxin (CagA). The flavonol kaempferol was identified as the most interesting compound that deserves further investigation as a new hit for its capacity to modulate H. pylori virulence factors.
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Affiliation(s)
- Corinne Raïssa Ngnameko
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, P. Box 812 Yaounde, Cameroon;
| | - Lucia Marchetti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Doctorate School in Clinical and Experimental Medicine (CEM), University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Barbara Zambelli
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (B.Z.); (D.R.)
| | - Antonio Quotadamo
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Doctorate School in Clinical and Experimental Medicine (CEM), University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Davide Roncarati
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (B.Z.); (D.R.)
| | - Davide Bertelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
| | - Frederic Nico Njayou
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, P. Box 812 Yaounde, Cameroon;
| | - Stella I. Smith
- Nigerian Institute of Medical Research, PMB 2013, Yaba, Lagos 100001, Nigeria;
| | - Paul F. Moundipa
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, P. Box 812 Yaounde, Cameroon;
- Correspondence: (P.F.M.); (F.P.); Tel.: +237-222-314-527 (P.F.M.); +39-059-2058565 (F.P.)
| | - Maria Paola Costi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (C.R.N.); (L.M.); (A.Q.); (D.B.); (M.P.C.)
- Correspondence: (P.F.M.); (F.P.); Tel.: +237-222-314-527 (P.F.M.); +39-059-2058565 (F.P.)
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Pisoschi AM, Pop A, Cimpeanu C, Predoi G. Antioxidant Capacity Determination in Plants and Plant-Derived Products: A Review. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:9130976. [PMID: 28044094 PMCID: PMC5164913 DOI: 10.1155/2016/9130976] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 09/24/2016] [Accepted: 10/10/2016] [Indexed: 12/16/2022]
Abstract
The present paper aims at reviewing and commenting on the analytical methods applied to antioxidant and antioxidant capacity assessment in plant-derived products. Aspects related to oxidative stress, reactive oxidative species' influence on key biomolecules, and antioxidant benefits and modalities of action are discussed. Also, the oxidant-antioxidant balance is critically discussed. The conventional and nonconventional extraction procedures applied prior to analysis are also presented, as the extraction step is of pivotal importance for isolation and concentration of the compound(s) of interest before analysis. Then, the chromatographic, spectrometric, and electrochemical methods for antioxidant and antioxidant capacity determination in plant-derived products are detailed with respect to their principles, characteristics, and specific applications. Peculiarities related to the matrix characteristics and other factors influencing the method's performances are discussed. Health benefits of plants and derived products are described, as indicated in the original source. Finally, critical and conclusive aspects are given when it comes to the choice of a particular extraction procedure and detection method, which should consider the nature of the sample, prevalent antioxidant/antioxidant class, and the mechanism underlying each technique. Advantages and disadvantages are discussed for each method.
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Affiliation(s)
- Aurelia Magdalena Pisoschi
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 105 Splaiul Independentei, Sector 5, 050097 Bucharest, Romania
| | - Aneta Pop
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 105 Splaiul Independentei, Sector 5, 050097 Bucharest, Romania
| | - Carmen Cimpeanu
- Faculty of Land Reclamation and Environmental Engineering, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd, Sector 1, 011464 Bucharest, Romania
| | - Gabriel Predoi
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 105 Splaiul Independentei, Sector 5, 050097 Bucharest, Romania
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