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More-Adate P, Lokhande KB, Shrivastava A, Doiphode S, Nagar S, Singh A, Baheti A. Pharmacoinformatics approach for the screening of Kovidra (Bauhinia variegata) phytoconstituents against tumor suppressor protein in triple negative breast cancer. J Biomol Struct Dyn 2024; 42:4263-4282. [PMID: 37288734 DOI: 10.1080/07391102.2023.2219744] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 12/12/2022] [Accepted: 05/25/2023] [Indexed: 06/09/2023]
Abstract
Globally, 2.3 million women were diagnosed with breast cancer, with 6,85000 mortalities in year 2021; making it the world's most prevalent cancer. This growing global burden necessitates a new treatment option, and plant-based medicines offers a promising alternative to conventional cancer treatment. In this work, screening of phytoconstituents of an indigenous therapeutic plant, Bauhinia variegata carried out for potential regulator of tumor suppressor protein p53. Here, an in-silico analysis was employed to develop more effective, pharmaceutically potent small drug-like compounds that target tumor suppressor protein p53. The methanol and aqueous powdered extracts of Bauhinia variegata were prepared and phytochemically evaluated along with antioxidant property evaluation. The LC50 of methanol (325.33 µg/ml) and aqueous extract (361.15 µg/ml) showed their cytotoxic characteristics. Further, GCMS analysis of both the extracts reveals total 57 secondary metabolites. Among these, four lead compounds; compound 1, compound 2, compound 3 and compound 4 were found to have the highest binding ability (-8.15 to -5.40 kcal/mol) with p53. MD simulation and binding free energy validates these findings with highest binding free energy (-67.09 ± 4.87 kcal/mol) towards p53 by the lead phytocompound 2. Selected compounds exhibit excellent pharmacokinetic features and drug-like characteristics. The acute toxicity (LD50) values of the lead phytocompounds ranges from 670 mg/kg to 3100 mg/kg, with toxicity classes of IV and V. As a result, these druggable phytochemicals could serve as potential lead applicants for triple negative breast cancer treatment. However, more in vitro and in vivo research is planned to produce future breast cancer medicine. HIGHLIGHTSScreening of phytoconstituents of an indigenous therapeutic plant, Bauhinia variegata, for potential regulator of tumor suppressor protein p53.The LC50 of methanol (325.33µg/ml) and aqueous extract (361.15µg/ml) showed their cytotoxic characteristics.GCMS analysis of both the extracts reveals total 57 secondary metabolites. Among these, four lead compounds were found to have the highest binding affinity (-8.153 to -5.401 kcal/mol) with tumor suppressor protein p53.MD simulation along with the Prime MM/GBSA binding free energy validates this discovery with highest binding free energy (-67.09 ± 4.87 kcal/mol) towards p53 by the lead compound 2.The acute toxicity (LD50) values of the lead phytocompounds ranges from 670 mg/kg to 3100 mg/kg, with toxicity classes of IV and V.As a result, these druggable phytochemicals could serve as potential lead applicants for triple negative breast cancer treatment.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Pallavi More-Adate
- School of Health Sciences and Technology, Dr. Vishwanath Karad MIT World Peace University, Pune, India
| | - Kiran Bharat Lokhande
- Translational Bioinformatics and Computational Genomics Research Lab, Department of Life Sciences, Shiv Nadar Institution of Eminence, Greater Noida, India
- Bioinformatics Centre, Dr. D. Y. Patil Biotechnology & Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, India
| | - Ashish Shrivastava
- Translational Bioinformatics and Computational Genomics Research Lab, Department of Life Sciences, Shiv Nadar Institution of Eminence, Greater Noida, India
| | - Sayali Doiphode
- Bioinformatics Centre, Dr. D. Y. Patil Biotechnology & Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, India
| | - Shuchi Nagar
- Bioinformatics Centre, Dr. D. Y. Patil Biotechnology & Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, India
| | - Ashutosh Singh
- Translational Bioinformatics and Computational Genomics Research Lab, Department of Life Sciences, Shiv Nadar Institution of Eminence, Greater Noida, India
| | - Akshay Baheti
- School of Health Sciences and Technology, Dr. Vishwanath Karad MIT World Peace University, Pune, India
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Gudavalli D, Pandey K, Ede VG, Sable D, Ghagare AS, Kate AS. Phytochemistry and pharmacological activities of five species of Bauhinia genus: A review. Fitoterapia 2024; 174:105830. [PMID: 38286316 DOI: 10.1016/j.fitote.2024.105830] [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: 09/01/2023] [Revised: 01/12/2024] [Accepted: 01/23/2024] [Indexed: 01/31/2024]
Abstract
Genus Bauhinia has been widely used in the treatment of diabetes, malaria, cough, headache, fever, piles, dysentery, flatulence, diarrhoea, ulcer and cardiovascular problems. Among 600 species of this genus, Bauhinia variegata, B. purpurea, B. championii, B. racemosa, and B. forficata are commonly used in the traditional medicine and found to be throughly investigated for their medicinal properties. They possess diverse pharmacological activities such as anti-diabetic, anti-microbial, antioxidant, anti-arthritic, cardioprotective, hepatoprotective, nephroprotective, fibrinolytic, and wound healing properties and most of the biological activities are corelating with traditional knowledge. Phytochemical analysis indicated that steroids, terpenoids, and flavonoids are prominent in the selected species, whereas bauhiniastatins, bauhinoxepins, racemosols, roseosides, and bauhichamines are found unique to the genus. This review aims to decipher active molecules from the aforementioned species of Bauhinia covering comprehensive analysis of phytochemistry, pharmacological activities and traditional uses. The data has been carefully analyzed to find compounds or fractions with a translational value. In most of the cases, the pharmacological activities have been established, however, further studies are needed such as safety evaluations, target identification, bioavailability, metabolite identification, and pharmacokinetic properties. In conclusion, the pharmacological potential of Bauhinia plants show promise with various leads such as insulin-like protein, roseoside, bauhiniastatin, and melibiose binding lectin. However, further investigations are required to address existing gaps and advance them towards product development. This review will lay the groundwork for future research initiatives aimed at fully realizing the therapeutic potential of Bauhinia plants.
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Affiliation(s)
- Divya Gudavalli
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Komal Pandey
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Venkata Gopal Ede
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Dakshata Sable
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Ashwini S Ghagare
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Abhijeet S Kate
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gandhinagar, Gujarat 382355, India.
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Tonelli CA, de Oliveira SQ, Silva Vieira AAD, Biavatti MW, Ritter C, Reginatto FH, Campos AMD, Dal-Pizzol F. Clinical efficacy of capsules containing standardized extract of Bauhinia forficata Link (pata-de-vaca) as adjuvant treatment in type 2 diabetes patients: A randomized, double blind clinical trial. J Ethnopharmacol 2022; 282:114616. [PMID: 34506937 DOI: 10.1016/j.jep.2021.114616] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 07/06/2021] [Accepted: 09/05/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bauhinia forficata Link, is a Brazilian native plant and popularly known as pata-de-vaca ("paw-of-cow"). The tea prepared with their leaves has been extensively used in the Brazilian traditional practices for the diabetes treatment. The aim of the present study was to investigate the effect of capsules containing granules of a standardized extract of B. forficata leaves as adjuvant treatment on the glycemic control of patients with type-2 diabetes melitus. MATERIALS AND METHODS A double-blind, randomized clinical trial using capsules containing granules prepared by wet granulation of a standardized extract from B. forficata leaves as adjuvant treatment, was conducted. 92 patients aged 18-75 years from an outpatient clinic with type-2 diabetes were randomly assigned by a simple randomization scheme, in a 1:1 ratio to receive capsules of B. forficata or placebo for four months. The capsules used contain 300 mg of standardized extract from B. forficata leaves, yielding 2% of total flavonoid content per capsule. Primary outcome was glycated hemoglobin levels and fasting plasma glucose at 4 months. Possible harms were also determined. RESULTS The findings showed that at 4 months, the mean fasting plasma glucose levels and glycated hemoglobin were both significantly lower in the B. forficata group than in the placebo group. CONCLUSION The present study suggests that the adjunctive use of capsules containing standardized extract of B. forficata can add to regular oral anti-diabetics in the metabolic and inflammatory control of type-2 diabetes patients.
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Affiliation(s)
- Carlos André Tonelli
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Simone Quintana de Oliveira
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil; Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Andriele Aparecida da Silva Vieira
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Maique Weber Biavatti
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Cristiane Ritter
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil
| | - Flávio Henrique Reginatto
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Angela Machado de Campos
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, SC, Brazil.
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Islam MM, Alam R, Chung HJ, Emon NU, Fazlul Kabir M, Rudra S, Alam S, Ullah A, Hong ST, Aktar Sayeed M. Chemical, Pharmacological and Computerized Molecular Analysis of Stem's Extracts of Bauhinia scandens L. Provide Insights into the Management of Diarrheal and Microbial Infections. Nutrients 2022; 14:nu14020265. [PMID: 35057446 PMCID: PMC8778859 DOI: 10.3390/nu14020265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
Bauhinia scandens L. (Family: Fabaceae) is commonly used to treat cholera, diarrhea, asthma, and diabetes disorder in integrative medicine. This study aimed to screen the presence of phytochemicals (preliminary and UPLC-QTOF–M.S. analysis) and to examine the pharmacological activities of Bauhinia scandens L. stems (MEBS) stem extracts. Besides, in silico study was also implemented to elucidate the binding affinity and drug capability of the selected phytochemicals. In vivo anti diarrheal activity was investigated in mice models. In vitro, antibacterial and antifungal properties of MEBS against several pathogenic strains were evaluated using the disc diffusion method. In addition, in silico study has been employed using Discovery studio 2020, UCFS Chimera, PyRx autodock vina, and online tools. In the anti-diarrheal investigation, MEBS showed a significant dose-dependent inhibition rate in all three methods. The antibacterial and antifungal screening showed a remarkable zone of inhibition, of the diameter 14–26 mm and 12–28 mm, by MEBS. The present study revealed that MEBS has remarkable anti-diarrheal potential and is highly effective in wide-spectrum bacterial and fungal strains. Moreover, the in silico study validated the results of biological screenings. To conclude, MEBS is presumed to be a good source in treating diarrhea, bacterial and fungal infections.
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Affiliation(s)
- Md Minarul Islam
- Department of Biomedical Sciences and Institute for Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea; (M.M.I.); (S.-T.H.)
| | - Rashedul Alam
- Department of Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea; (R.A.); (A.U.)
| | - Hea-Jong Chung
- Gwanju Center, Korea Basic Science Institute, Gwanju 61715, Korea;
| | - Nazim Uddin Emon
- Department of Pharmacy, Faculty of Science and Engineering, International Islamic University Chittagong, Chattogram 4318, Bangladesh;
| | | | - Sajib Rudra
- Department of Botany, Faculty of Biological Sciences, University of Chittagong, Chattogram 4331, Bangladesh;
| | - Safaet Alam
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road, Dhanmondi, Dhaka 1205, Bangladesh;
| | - Ahsan Ullah
- Department of Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea; (R.A.); (A.U.)
| | - Seong-Tshool Hong
- Department of Biomedical Sciences and Institute for Medical Science, Jeonbuk National University Medical School, Jeonju 54907, Korea; (M.M.I.); (S.-T.H.)
| | - Mohammed Aktar Sayeed
- Department of Pharmacy, Faculty of Science and Engineering, International Islamic University Chittagong, Chattogram 4318, Bangladesh;
- Correspondence:
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Alshammari GM, Yagoub AEA, Subash-Babu P, Hassan AB, Al-Nouri DM, Mohammed MA, Yahya MA, Elsayim R. Inhibition of Lipid Accumulation and Adipokine Levels in Maturing Adipocytes by Bauhinia rufescens (Lam.) Stem Bark Extract Loaded Titanium Oxide Nanoparticles. Molecules 2021; 26:molecules26237238. [PMID: 34885819 PMCID: PMC8659042 DOI: 10.3390/molecules26237238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022] Open
Abstract
The present study reports a cost-effective, environmentally friendly method to increase the bioavailability and bio-efficacy of B. rufescens stem bark extract in the biological system via functional modification as B. rufescens stem bark nanoparticles (BR-TO2-NPs). The biosynthesis of BR- -NPs was confirmed by UV-visible (UV-vis) and Fourier-transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), and X-ray diffraction analyses. The shifts in FT-IR stretching vibrations of carboxylic and nitro groups (1615 cm-1), the O-H of phenolics or carboxylic acids (3405 cm-1), alkanes, and alkyne groups (2925 and 2224 cm-1) of the plant extract and lattice (455) indicated successful biosynthesis of BR- -NPs. Compared with the stem bark extract, 40 ng/dL dose of BR- -NPs led to a reduction in adipogenesis and an increase in mitochondrial biogenesis-related gene expressions, adiponectin-R1, PPARγC1α, UCP-1, and PRDM16, in maturing-adipocytes. This confirmed the intracellular uptake, bioavailability, and bio-efficiency of BR-TiO2-NPs. The lipid-lowering capacity of BR-TiO2-NPs effectively inhibited the metabolic inflammation-related gene markers, IL-6, TNF-α, LTB4-R, and Nf-κb. Further, BR-TiO2-NPs stimulating mitochondrial thermogenesis capacity was proven by the significantly enhanced CREB-1 and AMPK protein levels in adipocytes. In conclusion, BR-TiO2-NPs effectively inhibited lipid accumulation and proinflammatory adipokine levels in maturing adipocytes; it may help to overcome obesity-associated comorbidities.
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Affiliation(s)
- Ghedeir M. Alshammari
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Abu ElGasim A. Yagoub
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
- Correspondence:
| | - Pandurangan Subash-Babu
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Amro B. Hassan
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Doha M. Al-Nouri
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Mohammed A. Mohammed
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Mohammed A. Yahya
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (G.M.A.); (P.S.-B.); (A.B.H.); (D.M.A.-N.); (M.A.M.); (M.A.Y.)
| | - Rasha Elsayim
- Department of Microbiology, College of Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;
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Dej-adisai S, Rais IR, Wattanapiromsakul C, Pitakbut T. Alpha-Glucosidase Inhibitory Assay-Screened Isolation and Molecular Docking Model from Bauhinia pulla Active Compounds. Molecules 2021; 26:molecules26195970. [PMID: 34641514 PMCID: PMC8512368 DOI: 10.3390/molecules26195970] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of this research was to establish the constituents of Bauhinia pulla as anti-diabetic agents. A phytochemistry analysis was conducted by chromatographic and spectroscopic techniques. The alpha-glucosidase inhibitory assay screening resulted in the isolation of eight known compounds of quercetin, quercitrin, luteolin, 5-deoxyluteolin, 4-methyl ether isoliquiritigenin, 3,2',4'-trihydroxy-4-methoxychalcone, stigmasterol and β-sitosterol. Ethanol leaf extracts showed potential effects, which led to a strong inhibitory activity of isolated quercetin at 138.95 µg/mL and 5.41 µg/mL of IC50, respectively. The docking confirmed that flavonoids and chalcones had the same potential binding sites and responsibilities for their activity. This study was the first report of Bauhinia pulla chemical constituents and its alpha-glucosidase inhibition.
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Affiliation(s)
- Sukanya Dej-adisai
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand; (I.R.R.); (C.W.)
- Correspondence: ; Tel.: +66-74-288888; Fax: +66-74-288891
| | - Ichwan Ridwan Rais
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand; (I.R.R.); (C.W.)
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Ahmad Dahlan, Yogyakarta 55164, Indonesia
| | - Chatchai Wattanapiromsakul
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand; (I.R.R.); (C.W.)
| | - Thanet Pitakbut
- Department of Biochemical and Chemical Engineering, Technical University of Dortmund, 44227 Dortmund, Germany;
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Saldanha LL, Quintiliano Delgado A, Marcourt L, de Paula Camaforte NA, Ponce Vareda PM, Nejad Ebrahimi S, Vilegas W, Dokkedal AL, Queiroz EF, Wolfender JL, Bosqueiro JR. Hypoglycemic active principles from the leaves of Bauhinia holophylla: Comprehensive phytochemical characterization and in vivo activity profile. PLoS One 2021; 16:e0258016. [PMID: 34559860 PMCID: PMC8462688 DOI: 10.1371/journal.pone.0258016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/16/2021] [Indexed: 12/19/2022] Open
Abstract
Bauhinia holophylla leaves, also known as "pata-de-vaca", are traditionally used in Brazil to treat diabetes. Although the hypoglycemic activity of this medicinal plant has already been described, the active compounds responsible for the hypoglycemic activity have not yet been identified. To rapidly obtain two fractions in large amounts compatible with further in vivo assay, the hydroalcoholic extract of B. holophylla leaves was fractionated by Vacuum Liquid Chromatography and then purified by medium pressure liquid chromatography combined with an in vivo Glucose Tolerance Test in diabetic mice. This approach resulted in the identification of eleven compounds (1-11), including an original non-cyanogenic cyanoglucoside derivative. The structures of the isolated compounds were elucidated by nuclear magnetic resonance and high-resolution mass spectrometry. One of the major compounds of the leaves, lithospermoside (3), exhibited strong hypoglycemic activity in diabetic mice at the doses of 10 and 20 mg/kg b.w. and prevents body weight loss. The proton nuclear magnetic resonance (1H NMR) quantification revealed that the hydroalcoholic leaves extract contained 1.7% of lithospermoside (3) and 3.1% of flavonoids. The NMR analysis also revealed the presence of a high amount of pinitol (4) (9.5%), a known compound possessing in vivo hypoglycemic activity. The hypoglycemic properties of the hydroalcoholic leaves extract and the traditional water infusion extracts of the leaves of B. holophylla seem thus to be the result of the activity of three unrelated classes of compounds. Such results support to some extent the traditional use of Bauhinia holophylla to treat diabetes.
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Affiliation(s)
- Luiz Leonardo Saldanha
- Faculty of Sciences, São Paulo State University (UNESP), Bauru, São Paulo, Brazil
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, Geneva, Switzerland
| | | | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, Geneva, Switzerland
| | | | | | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
| | - Wagner Vilegas
- Institute of Biociences, São Paulo State University (UNESP), São Vicente, São Paulo, Brazil
| | - Anne Lígia Dokkedal
- Faculty of Sciences, São Paulo State University (UNESP), Bauru, São Paulo, Brazil
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, Geneva, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, Geneva, Switzerland
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Emon NU, Rudra S, Alam S, Haidar IKA, Paul S, Richi FT, Shahriar S, Sayeed MA, Tumpa NI, Ganguly A. Chemical, biological and protein-receptor binding profiling of Bauhinia scandens L. stems provide new insights into the management of pain, inflammation, pyrexia and thrombosis. Biomed Pharmacother 2021; 143:112185. [PMID: 34543985 DOI: 10.1016/j.biopha.2021.112185] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 08/17/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 01/06/2023] Open
Abstract
Bauhinia scandens L. (Family, Fabaceae) is a medicinal plant used for conventional and societal medication in Ayurveda. The present study has been conducted to screen the chemical, pharmacological and biochemical potentiality of the methanol extracts of B. scandens stems (MEBS) along with its related fractions including carbon tetrachloride (CTBS), di-chloromethane (DMBS) and n-butanol (BTBS). UPLC-QTOF-MS has been implemented to analyze the chemical compounds of the methanol extracts of Bauhinia scandens stems. Additionally, antinociceptive and anti-inflammatory effects were performed by following the acetic acid-induced writhing test and formalin-mediated paw licking test in the mice model. The antipyretic investigation was performed by Brewer Yeast induced pyrexia method. The clot lysis method was implemented to screen the thrombolytic activity in human serum. Besides, the in silico study was performed for the five selected chemical compounds of Bauhinia scandens, found by UPLC-QTOF-MS By using Discover Studio 2020, UCSF Chimera, PyRx autodock vina and online tools. The MEBS and its fractions exhibited remarkable inhibition in dose dependant manner in the antinociceptive and antiinflammatory investigations. The antipyretic results of MEBS and DMBS were close to the standard drug indomethacin. Investigation of the thrombolytic effect of MEBS, CTBS, DMBS, and BTBS revealed notable clot-lytic potentials. Besides, the phenolic compounds of the plant extracts revealed strong binding affinity to the COX-1, COX-2, mPGES-1 and plasminogen activator enzymes. To recapitulate, based on the research work, Bauhinia scandens L. stem and its phytochemicals can be considered as prospective wellsprings for novel drug development and discovery by future researchers.
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Affiliation(s)
- Nazim Uddin Emon
- Department of Pharmacy, Faculty of Science and Engineering, International Islamic University Chittagong, Chattogram 4318, Bangladesh
| | - Sajib Rudra
- Department of Botany, Faculty of Biological Sciences, University of Chittagong, Chattogram 4331, Bangladesh
| | - Safaet Alam
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh.
| | | | - Susmita Paul
- Department of Botany, Faculty of Biological Sciences, University of Chittagong, Chattogram 4331, Bangladesh
| | - Fahmida Tasnim Richi
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Saimon Shahriar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Mohammed Aktar Sayeed
- Department of Pharmacy, Faculty of Science and Engineering, International Islamic University Chittagong, Chattogram 4318, Bangladesh.
| | - Nadia Islam Tumpa
- Department of Microbiology, Faculty of Biological Sciences, University of Chittagong, Chattogram 4331, Bangladesh
| | - Amlan Ganguly
- Department of Clinical Pharmacy and Pharmacology, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh.
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Chen YF, Chen WY, Chung CH, Kuo CL, Lee AS. Cardiac protection of Bauhinia championii against reperfusion injury. Environ Toxicol 2020; 35:774-782. [PMID: 32061153 DOI: 10.1002/tox.22912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/22/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
This study aims to investigate the protective effects of the Bauhinia championii (BC) against ischemia/reperfusion (I/R)-induced injury in an isolated heart model. Langendorff-perfused C57BL/6JNarl mice hearts were performed with 30 minutes ischemia and 60 minutes reperfusion by left anterior descending artery ligation. Before reperfusion, boiling water extracts of BC (10 mg/L) was pretreated for 15 minutes. During reperfusion, BC significantly decreased the occurrence of ventricular arrhythmias by lead II electrocardiogram (ECG). Electrophysiological effect of BC was further determined in isolated ventricular myocytes by whole-cell patch clamp technique. The underlying mechanism may result from its Na+ channel blocking activity characterized with reduced rise slope of action potential and Na+ current density. Moreover, BC dramatically reduced I/R-caused infarct size, which was accessed by 2,3,5-triphenyltetrazolium chloride (TTC) assay. Since BC decreased I/R-induced myoglobin release and oxidation of Ca2+ -calmodulin-dependent protein kinase, inhibition of myocardial necroptosis may account for the protective effects of BC on myocytes lose. This study indicated that BC may prevent I/R induced ventricular arrhythmias and myocyte death by blocking Na+ channels and decreasing necroptosis, respectively. Since most of the available antiarrhythmic remedies have unwanted adverse actions, BC could be a novel candidate for the treatment of myocardial infarction and ventricular arrhythmia.
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Affiliation(s)
- Yun-Fang Chen
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan
| | - Wei-Yu Chen
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Ching-Hu Chung
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Chao-Lin Kuo
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan
| | - An-Sheng Lee
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
- Cardiovascular Research Laboratory, China Medical University Hospital, Taichung, Taiwan
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10
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Cechinel-Zanchett CC, Bolda Mariano LN, Boeing T, da Costa JDC, Da Silva LM, Bastos JK, Cechinel-Filho V, de Souza P. Diuretic and Renal Protective Effect of Kaempferol 3- O-Alpha-l-rhamnoside (Afzelin) in Normotensive and Hypertensive Rats. J Nat Prod 2020; 83:1980-1989. [PMID: 32453565 DOI: 10.1021/acs.jnatprod.0c00274] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Our previous study showed that kaempferitrin, the main flavonoid from Bauhinia forficata Link leaves, induces diuresis and saluresis when orally given to rats. Since afzelin (AFZ) and kaempferol (KFL) are active compounds from the biometabolism of kaempferitrin, the diuretic and renal protective properties of these two compounds were evaluated. While the acute treatment with AFZ evoked a diuretic action associated with an increase in Cl- excretion and a Ca2+-sparing effect, KFL did not present any activity. The pretreatment with a muscarinic receptor blocker or with an inhibitor of the cyclooxygenase fully avoided AFZ-induced diuresis. AFZ also induced a prolonged (7-day treatment) diuretic effect in normotensive (NTR) and hypertensive rats (SHR), with an increase of urinary Na+ and Cl- excretion, while it decreased the elimination of Ca2+. AFZ was able to decrease ROS and nitrite generation on kidney homogenates in comparison with the SHR group treated with the vehicle, as well as mitigated the changes in the renal corpuscle region (glomerulus and Bowman's capsule). Moreover, AFZ significantly reduced calcium oxalate crystal formation in urine, with inhibition rates of 41% for the NTR and 92% for the SHR group. Taken together, this study shows that AFZ exerts acute and prolonged diuretic effects plus protective renal properties.
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Affiliation(s)
- Camile Cecconi Cechinel-Zanchett
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Luísa Nathália Bolda Mariano
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Thaise Boeing
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Juliana de Carvalho da Costa
- School of Pharmaceutical Sciences, University of Sao Paulo, Avenida do Café - CEP 14040-903 Ribeirão Preto, SP, Brazil
| | - Luísa Mota Da Silva
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Jairo K Bastos
- School of Pharmaceutical Sciences, University of Sao Paulo, Avenida do Café - CEP 14040-903 Ribeirão Preto, SP, Brazil
| | - Valdir Cechinel-Filho
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
| | - Priscila de Souza
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí, UNIVALI, Itajaí, Santa Catarina, Brazil
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11
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Camaforte NADP, Saldanha LL, Vareda PMP, Rezende-Neto JM, Senger MR, Delgado AQ, Morgan HJN, Violato NM, Pieroni LG, Dokkedal AL, Silva-Júnior FP, Bosqueiro JR. Hypoglycaemic activity of Bauhinia holophylla through GSK3-β inhibition and glycogenesis activation. Pharm Biol 2019; 57:269-279. [PMID: 31007116 PMCID: PMC6493280 DOI: 10.1080/13880209.2019.1599962] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 03/07/2019] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
CONTEXT Bauhinia L. species, including Bauhinia holophylla (Bong.) Steud. (Fabaceae), have traditionally been used to treat diabetes. Bauhinia is a complex botanical genus, and the indiscriminate use of the diverse Bauhinia species is reflected in the experimental divergence of their medicinal potential. OBJECTIVE The hypoglycaemic and hypolipidaemic effects, molecular mechanism of action and phytochemical properties of an authentic extract of B. holophylla leaves were evaluated. MATERIALS AND METHODS A phytochemical study of a 70% EtOH extract was performed using FIA-ESI-IT-MS/MSn and HPLC-PAD-ESI-IT-MS. The extract (200 or 400 mg/kg b.w.) was administered for 14 days to streptozotocin-induced diabetic Swiss mice. Glucose tolerance and insulin sensitivity, blood parameters, gene and protein expression, and the in vivo and in vitro inhibition of intestinal glucosidases were assessed. RESULTS HPLC-PAD-ESI-IT-MS analysis identified flavonoid derivatives of quercetin, myricetin, luteolin and kaempferol. Treatment with 400 mg/kg of the extract reduced blood glucose (269.0 ± 32.4 mg/dL vs. 468.0 ± 32.2 mg/dL for diabetic animals), improved glucose tolerance, decreased cholesterol and triglyceride levels, and increased the mRNA expression of proteins involved in glucogenesis in the liver and muscle, such as PI3-K/Akt, GS, GSK3-β (ser-9), AMPK and Glut4. The activity of intestinal maltase was inhibited in vitro (IC50: 43.0 µg/mL for the extract compared to 516.4 µg/mL for acarbose) and in vivo. DISCUSSION AND CONCLUSIONS Treatment with B. holophylla was associated with a marked hypoglycaemic effect through the stimulation of glycogenesis and inhibition of gluconeogenesis and intestinal glucose absorption, without increasing basal insulinaemia.
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Affiliation(s)
| | | | | | - João M. Rezende-Neto
- Laboratory of Experimental and Computational Biochemistry of Drugs, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
| | - Mario R. Senger
- Laboratory of Experimental and Computational Biochemistry of Drugs, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
| | - Aislan Q. Delgado
- Institute of Biosciences, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Henrique J. N. Morgan
- Department of Biological Sciences, São Paulo State University, Bauru, São Paulo, Brazil
| | | | - Laís Goyos Pieroni
- Institute of Biosciences, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Anne Lígia Dokkedal
- Department of Biological Sciences, São Paulo State University, Bauru, São Paulo, Brazil
| | - Floriano P. Silva-Júnior
- Laboratory of Experimental and Computational Biochemistry of Drugs, Oswaldo Cruz Institute (FIOCRUZ), Rio de Janeiro, Brazil
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Ferreira RS, Brito MV, Napoleão TH, Silva MCC, Paiva PMG, Oliva MLV. Effects of two protease inhibitors from Bauhinia bauhinoides with different specificity towards gut enzymes of Nasutitermes corniger and its survival. Chemosphere 2019; 222:364-370. [PMID: 30710762 DOI: 10.1016/j.chemosphere.2019.01.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/16/2019] [Accepted: 01/20/2019] [Indexed: 06/09/2023]
Abstract
Two recombinant protease inhibitors from Bauhinia bauhinioides, rBbKI (kallikrein inhibitor) and rBbCI (cruzipain inhibitor) were evaluated for insecticidal activity against workers and soldiers of Nasutitermes corniger (order: Isoptera; family: Termitidae) through the inhibitors' effect on the insect's gut enzymes. The inhibitor rBbKI was more effective than rBbCI in inhibiting the termite's gut enzymes. The kallikrein inhibitor showed termiticidal activity in workers with an LC50 of 0.9 mg mL-1 after 4 days. Conversely, rBbKI did not affect the survival of soldiers and rBbCI did not show termiticidal activity against N. corniger. The two inhibitors showed different specificity towards the termite's gut enzymes, representing interesting tools to characterize N. corniger enzymes. The different effects of rBbKI and rBbCI on the termite's enzymes and survival may be linked to slight structural differences between these inhibitors.
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Affiliation(s)
- R S Ferreira
- Biochemistry Department at the Federal University of São Paulo, 04044-020, São Paulo, SP, Brazil
| | - M V Brito
- Biochemistry Department at the Federal University of São Paulo, 04044-020, São Paulo, SP, Brazil
| | - T H Napoleão
- Biochemistry Department at the Federal University of Pernambuco, 50670-420, Recife, PE, Brazil
| | - M C C Silva
- Biochemistry Department at the Federal University of São Paulo, 04044-020, São Paulo, SP, Brazil
| | - P M G Paiva
- Biochemistry Department at the Federal University of Pernambuco, 50670-420, Recife, PE, Brazil
| | - M L V Oliva
- Biochemistry Department at the Federal University of São Paulo, 04044-020, São Paulo, SP, Brazil.
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13
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Li M, Srp J, Gustchina A, Dauter Z, Mares M, Wlodawer A. Crystal structures of the complex of a kallikrein inhibitor from Bauhinia bauhinioides with trypsin and modeling of kallikrein complexes. Acta Crystallogr D Struct Biol 2019; 75:56-69. [PMID: 30644845 PMCID: PMC6333282 DOI: 10.1107/s2059798318016492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/19/2018] [Indexed: 11/11/2022] Open
Abstract
Structures of a recombinant Kunitz-type serine protease inhibitor from Bauhinia bauhinioides (BbKI) complexed with bovine trypsin were determined in two crystal forms. The crystal structure with the L55R mutant of BbKI was determined in space group P64 at 1.94 Å resolution and that with native BbKI in the monoclinic space group P21 at 3.95 Å resolution. The asymmetric unit of the latter crystals contained 44 independent complexes, thus representing one of the largest numbers of independent objects deposited in the Protein Data Bank. Additionally, the structure of the complex with native BbKI was determined at 2.0 Å resolution from P64 crystals isomorphous to those of the mutant. Since BbKI has previously been found to be a potent inhibitor of the trypsin-like plasma kallikrein, it was also tested against several tissue kallikreins. It was found that BbKI is a potent inhibitor of human tissue kallikrein 4 (KLK4) and the chymotrypsin-like human tissue kallikrein 7 (KLK7). Structures of BbKI complexed with the catalytic domain of human plasma kallikrein were modeled, as well as those with KLK4 and KLK7, and the structures were analyzed in order to identify the interactions that are responsible for inhibitory potency.
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Affiliation(s)
- Mi Li
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Jaroslav Srp
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Alla Gustchina
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Zbigniew Dauter
- Synchrotron Radiation Research Section, Macromolecular Crystallography Laboratory, NCI, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Michael Mares
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Alexander Wlodawer
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
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14
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Alharbi NS, Govindarajan M, Kadaikunnan S, Khaled JM, Almanaa TN, Alyahya SA, Al-Anbr MN, Gopinath K, Sudha A. Nanosilver crystals capped with Bauhinia acuminata phytochemicals as new antimicrobials and mosquito larvicides. J Trace Elem Med Biol 2018; 50:146-153. [PMID: 30262272 DOI: 10.1016/j.jtemb.2018.06.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/09/2018] [Accepted: 06/19/2018] [Indexed: 12/16/2022]
Abstract
To develop novel nanoformulated insecticides and antimicrobials, herein we produced Ag nanoparticles (AgNPs) using the Bauhinia acuminata leaf extract. This unexpensive aqueous extract acted as a capping and reducing agent for the formation of AgNPs. We characterized B. acuminata-synthesized AgNPs by UV-vis and FTIR spectroscopy, XRD and TEM analyses. UV-vis spectroscopy analysis of B. acuminata-synthesized AgNPs showed a peak at 441.5 nm. FTIR shed light on functional groups from the phytoconstituents involved in nanosynthesis. XRD of B. acuminata-synthesized AgNPs suggested a face-centered cubic structure, with a highly crystalline nature. TEM of B. acuminata-synthesized AgNPs revealed mean size of 25 nm, with round shape. AgNPs tested at 60 μg/mL inhibited the growth of 5 bacteria and 3 fungal pathogens. In the insecticidal assays on important mosquito species, LC50 of the aqueous extract of B. acuminata leaves on the larvae of Anopheles stephensi, Aedes aegypti, and Culex quinquefasciatus were 204.07, 226.02, and 249.24 μg/mL, respectively. The B. acuminata-synthesized AgNPs exhibited higher larvicidal efficacy, with LC50 values of 24.59, 27.19, and 30.19 μg/mL, respectively. Therefore, herein we developed a single-step, reliable, inexpensive, and environmentally non-toxic synthesis process to obtain AgNPs with high bioactivity against pathogens and vectors. Given the effective antimicrobial and larvicidal activity, nanoparticles fabricated using plant extracts and extremely low concentrations of trace elements, such as silver, can be exploited for multipurpose activities. Our results pointed out that B. acuminata-synthesized AgNPs have a promising potential in antimicrobial food packaging, as well as a foliar spray to control plant pathogens in the field, and to synergize the efficacy of fungicidal and larvicidal formulations.
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Affiliation(s)
- Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Marimuthu Govindarajan
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar, 608002, Tamil Nadu, India; Department of Zoology, Government College for Women, Kumbakonam, 612001, Tamil Nadu, India.
| | - Shine Kadaikunnan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jamal M Khaled
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Taghreed N Almanaa
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sami A Alyahya
- National Center for Biotechnology, King Abdulaziz City for Science and Technology, Riyadh 11442, Saudi Arabia
| | - Mohammed N Al-Anbr
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Kasi Gopinath
- Department of Packaging, Yonsei University, Gangwondo 26493, Republic of Korea
| | - Arumugam Sudha
- Department of Bioinformatics, Alagappa University, Karaikudi, India
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15
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Das B, Moumita S, Ghosh S, Khan MI, Indira D, Jayabalan R, Tripathy SK, Mishra A, Balasubramanian P. Biosynthesis of magnesium oxide (MgO) nanoflakes by using leaf extract of Bauhinia purpurea and evaluation of its antibacterial property against Staphylococcus aureus. Mater Sci Eng C Mater Biol Appl 2018; 91:436-444. [PMID: 30033274 DOI: 10.1016/j.msec.2018.05.059] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 03/22/2018] [Accepted: 05/17/2018] [Indexed: 01/11/2023]
Abstract
Nanobiotechnology has become a newly evolving field of interest in biomedical applications due to its biocompatibility and non-toxic nature towards the environment. Metal and metal oxide nanoparticles have been widely used as an antibacterial agent due to the emergence of antibiotic resistant pathogens, which leads to the outbreak of infectious diseases. In the present paper, biogenic synthesis of magnesium oxide (MgO) nanoflakes is reported by using Bauhinia purpurea leaf extract through alkaline precipitation method along with its detailed characterization. The average size of synthesized nanoflakes was found to be around 11 nm. Electron microscopy was used to investigate the morphology of the MgO nanoflakes. Additionally, the presence of antioxidants, phenolics and flavonoids in B. purpurea leaf extract has been studied by using different assays, which suggested the efficacy of leaf extract as a potential reducing agent for MgO nanoflakes synthesis. Antibacterial activity of synthesized MgO nanoflakes was investigated against Staphylococcus aureus, a gram positive bacteria known to cause various infections in humans. Results suggested the high efficacy of MgO nanoflakes as a potential antibacterial agent against S. aureus at meager dose size (250 μg/ml) and possible mode of action was investigated through surface morphology analysis of bacterial cells by field emission scanning electron microscopy.
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Affiliation(s)
- Bhaskar Das
- Bioenergy and Environmental Laboratory, Department of Biotechnology & Medical Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Sahoo Moumita
- Food Microbiology and Bioprocess Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Soumen Ghosh
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha 751024, India
| | - Md Imran Khan
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha 751024, India
| | - Dash Indira
- Food Microbiology and Bioprocess Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - R Jayabalan
- Food Microbiology and Bioprocess Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
| | - Suraj K Tripathy
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha 751024, India
| | - Amrita Mishra
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha 751024, India
| | - P Balasubramanian
- Bioenergy and Environmental Laboratory, Department of Biotechnology & Medical Engineering, National Institute of Technology, Rourkela, Odisha 769008, India.
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16
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Chew YL, Mahadi AM, Wong KM, Goh JK. Anti-methicillin-resistance Staphylococcus aureus (MRSA) compounds from Bauhinia kockiana Korth. And their mechanism of antibacterial activity. BMC Complement Altern Med 2018; 18:70. [PMID: 29463252 PMCID: PMC5819667 DOI: 10.1186/s12906-018-2137-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 02/13/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Bauhinia kockiana originates from Peninsular Malaysia and it is grown as a garden ornamental plant. Our previous study reported that this plant exhibited fairly strong antioxidant and antimicrobial activities. This paper focused on the assessment of the antibacterial activity of B. kockiana towards methicillin-resistance Staphylococcus aureus (MRSA), to purify and to identify the antibacterial compounds, and to determine the mechanism of antibacterial activity. METHODS Antibacterial activity of B. kockiana flower was evaluated qualitatively and quantitatively using disc diffusion assay and microbroth dilution method. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of extracts were examined. Phytochemical analysis was performed to determine the classes of phytochemicals in the extracts. Bioactivity guided isolation was employed to purify the antibacterial agents and identified via various spectroscopy methods. Scanning electron microscopy (SEM) technique was used to evaluate the antibacterial mechanism of extract and compounds isolated. RESULTS B. kockiana flower was found to exhibit fairly strong antibacterial activity towards both strains of MRSA bacteria used, MIC varies from 62.5-250 μg/mL. Tannins and flavonoids have been detected in the phytochemical analysis. Gallic acid and its ester derivatives purified from ethyl acetate extract could inhibit MRSA at 250-500 μg/mL. SEM revealed that the cells have undergone plasmolysis upon treatment with the extract and compounds. CONCLUSION Tannins and polyphenols are the antibacterial components towards MRSA in B. kockiana. Massive leakage of the cell content observed in treated cells showed that the phytochemicals have changed the properties of the cell membranes. Amphiphilic nature of the compounds exhibited the antibacterial activity towards MRSA via three stages: (1) cell membrane attachment; (2) cell membrane fluidity modification; and (3) cell membrane structure disruption.
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Affiliation(s)
- Yik Ling Chew
- Faculty of Pharmaceutical Sciences, UCSI University, No. 1 Jalan Menara Gading, UCSI Heights, 56000 Kuala Lumpur, Malaysia
| | - Adlina Maisarah Mahadi
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan Malaysia
| | - Kak Ming Wong
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan Malaysia
| | - Joo Kheng Goh
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan Malaysia
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17
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Chinnappan S, Kandasamy S, Arumugam S, Seralathan KK, Thangaswamy S, Muthusamy G. Biomimetic synthesis of silver nanoparticles using flower extract of Bauhinia purpurea and its antibacterial activity against clinical pathogens. Environ Sci Pollut Res Int 2018; 25:963-969. [PMID: 29218578 DOI: 10.1007/s11356-017-0841-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 11/23/2017] [Indexed: 06/07/2023]
Abstract
In the present study, we have reported an eco-friendly, rapid, and simple method for the synthesis of silver nanoparticles (AgNPs) using Bauhinia purpurea flower extract as non-toxic bioreducing agent. The formation of AgNPs was confirmed by UV-visible spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy and energy-dispersive spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The synthesized AgNPs were spherical in shape with an average size of 20 nm. Furthermore, the antibacterial activities of the synthesized AgNPs (2-10 mM) against clinical pathogens, Klebsiella sp. and Staphylococcus sp., were evaluated under in vitro conditions.
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Affiliation(s)
- Sudhakar Chinnappan
- PG & Research Department of Biotechnology, Mahendra Arts and Science College (Autonomous), Kalippatti, Namakkal, Tamil Nadu, 637 501, India
| | - Selvam Kandasamy
- PG & Research Department of Biotechnology, Mahendra Arts and Science College (Autonomous), Kalippatti, Namakkal, Tamil Nadu, 637 501, India
| | - Sengottaiyan Arumugam
- PG & Research Department of Biotechnology, Mahendra Arts and Science College (Autonomous), Kalippatti, Namakkal, Tamil Nadu, 637 501, India
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, 570 752, South Korea
| | - Selvankumar Thangaswamy
- PG & Research Department of Biotechnology, Mahendra Arts and Science College (Autonomous), Kalippatti, Namakkal, Tamil Nadu, 637 501, India.
| | - Govarthanan Muthusamy
- PG & Research Department of Biotechnology, Mahendra Arts and Science College (Autonomous), Kalippatti, Namakkal, Tamil Nadu, 637 501, India.
- Department of Energy and Environmental System Engineering, University of Seoul, Seoul, Republic of Korea.
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18
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Liao P, Sun G, Zhang C, Wang M, Sun Y, Zhou Y, Sun X, Jian J. Bauhinia championii Flavone Attenuates Hypoxia-Reoxygenation Induced Apoptosis in H9c2 Cardiomyocytes by Improving Mitochondrial Dysfunction. Molecules 2016; 21:molecules21111469. [PMID: 27827932 PMCID: PMC6273835 DOI: 10.3390/molecules21111469] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/22/2016] [Accepted: 10/31/2016] [Indexed: 12/29/2022] Open
Abstract
This study aimed to determine the effects of Bauhinia championii flavone (BCF) on hypoxia-reoxygenation (H/R) induced apoptosis in H9c2 cardiomyocytes and to explore potential mechanisms. The H/R model in H9c2 cardiomyocytes was established by 6 h of hypoxia and 12 h of reoxygenation. Cell viability was detected by CCK-8 assay. Apoptotic rate was measured by Annexin V/PI staining. Levels of mitochondria-associated ROS, mitochondrial transmembrane potential (∆Ψm) and mitochondrial permeability transition pores (MPTP) opening were assessed by fluorescent probes. ATP production was measured by ATP assay kit. The release of cytochrome c, translocation of Bax, and related proteins were measured by western blotting. Our results showed that pretreatment with BCF significantly improved cell viability and attenuated the cardiomyocyte apoptosis caused by H/R. Furthermore, BCF increased ATP production and inhibited ROS-generating mitochondria, depolarization of ΔΨm, and MPTP opening. Moreover, BCF pretreatment decreased Bax mitochondrial translocation, cytochrome c release, and activation of caspase-3, as well as increased the expression of p-PI3K, p-Akt, and the ratio of Bcl-2 to Bax. Interestingly, a specific inhibitor of phosphatidylinositol 3-kinase, LY294002, partly reversed the anti-apoptotic effect of BCF. These observations indicated that BCF pretreatment attenuates H/R-induced myocardial apoptosis strength by improving mitochondrial dysfunction via PI3K/Akt signaling pathway.
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Affiliation(s)
- Ping Liao
- Department of Pharmacology, Guilin Medical University, Huan Cheng North 2nd Road, Guilin 541004, Guangxi, China.
| | - Guibo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.
| | - Chan Zhang
- Department of Pharmacology, Guilin Medical University, Huan Cheng North 2nd Road, Guilin 541004, Guangxi, China.
| | - Min Wang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.
| | - Yao Sun
- Department of Pharmacology, Guilin Medical University, Huan Cheng North 2nd Road, Guilin 541004, Guangxi, China.
| | - Yuehan Zhou
- Department of Pharmacology, Guilin Medical University, Huan Cheng North 2nd Road, Guilin 541004, Guangxi, China.
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.
| | - Jie Jian
- Department of Pharmacology, Guilin Medical University, Huan Cheng North 2nd Road, Guilin 541004, Guangxi, China.
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Govindarajan M, Rajeswary M, Veerakumar K, Muthukumaran U, Hoti SL, Mehlhorn H, Barnard DR, Benelli G. Novel synthesis of silver nanoparticles using Bauhinia variegata: a recent eco-friendly approach for mosquito control. Parasitol Res 2016; 115:723-33. [PMID: 26490683 DOI: 10.1007/s00436-015-4794-3] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 10/12/2015] [Indexed: 11/30/2022]
Abstract
Mosquito vectors are responsible for transmitting diseases such as malaria, dengue, chikungunya, Japanese encephalitis, dengue, and lymphatic filariasis. The use of synthetic insecticides to control mosquito vectors has caused physiological resistance and adverse environmental effects, in addition to high operational cost. Biosynthesis of silver nanoparticles has been proposed as an alternative to traditional control tools. In the present study, green synthesis of silver nanoparticles (AgNPs) using aqueous leaf extract of Bauhinia variegata by reduction of Ag(+) ions from silver nitrate solution has been investigated. The bioreduced silver nanoparticles were characterized by UV–visible spectrophotometry, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDX), and X-ray diffraction analysis (XRD). Leaf extract and synthesized AgNPs were evaluated against the larvae of Anopheles subpictus, Aedes albopictus, and Culex tritaeniorhynchus. Compared to aqueous extract, synthesized AgNPs showed higher toxicity against An. subpictus, Ae. albopictus, and Cx. tritaeniorhynchus with LC50 and LC90 values of 41.96, 46.16, and 51.92 μg/mL and 82.93, 89.42, and 97.12 μg/mL, respectively. Overall, this study proves that B. variegata is a potential bioresource for stable, reproducible nanoparticle synthesis and may be proposed as an efficient mosquito control agent.
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Kulkarni YA, Garud MS. Bauhinia variegata (Caesalpiniaceae) leaf extract: An effective treatment option in type I and type II diabetes. Biomed Pharmacother 2016; 83:122-129. [PMID: 27470559 DOI: 10.1016/j.biopha.2016.06.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 04/13/2016] [Revised: 06/11/2016] [Accepted: 06/13/2016] [Indexed: 12/28/2022] Open
Abstract
Among various metabolic disorders, diabetes mellitus is one of the most common disorder. Present study was designed to evaluate the effectiveness of aqueous extract of Bauhinia variegata leaves (AE) in animal models of type I and type II diabetes. Type I diabetes was induced by streptozotocin at the dose of 55mg/kg (i.p.) in male Sprague Dawley rats while type II diabetes was induced by high fat diet and streptozotocin at the dose of 35mg/kg (i.p.). Diabetic animals were treated with AE at the dose of 250, 500 and 1000mg/kg. Glipizide (5mg/kg) was used as standard treatment drug. Treatment was given for 28days. Parameters evaluated were body weight, plasma glucose, cholesterol, triglyceride, aspartate aminotransferase, alanine transaminase, alkaline phosphatase, total proteins, albumin, creatinine and bun urea nitrogen. In type II diabetes, high density lipoprotein levels in plasma and plasma insulin level were also evaluated. Histopathological study of pancreases were carried out in type I study. AE showed significant decrease in plasma glucose significantly. AE was also found to decrease cholesterol, triglyceride, creatinine and blood urea nitrogen level in both types of diabetes. AE did not show any significant effect on plasma levels of aspartate aminotransferase, alanine transaminase, alkaline phosphatase. AE was found to increase the albumin and total protein levels. Histopathological study showed that AE decreases the necrotic changes in the pancreatic tissue. Aqueous extract of B. variegata leaves was found effective in treatment of both type I and type II diabetes.
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Affiliation(s)
- Yogesh A Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L Mehta Road, Vile Parle (W), Mumbai 400056, India.
| | - Mayuresh S Garud
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L Mehta Road, Vile Parle (W), Mumbai 400056, India
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Xu W, Huang M, Zhang Y, Li H, Zheng H, Yu L, Chu K. Extracts of Bauhinia championii (Benth.) Benth. inhibit NF-<kappa>B-signaling in a rat model of collagen-induced arthritis and primary synovial cells. J Ethnopharmacol 2016; 185:140-146. [PMID: 26988564 DOI: 10.1016/j.jep.2016.03.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 03/06/2016] [Accepted: 03/12/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bauhinia championii (Benth.) Benth. is used in Chinese traditional medicine to treat arthritis, especially has been used a long time ago on rheumatoid arthritis (RA) in She ethnic minority group. AIM OF THE RESEARCH To investigate the anti-RA effect of Bauhinia championii (Benth.) Benth ethyl acetate extract (BCBEE) and the molecular bases of it. MATERIALS AND METHODS BCBEE was studied on a rat model of RA induced by Ⅱcollagen in vivo, as well as on primary synovial cells in vitro. RESULTS After BCBEE treatment, in vivo, it was showed that paw and joint edema was inhibited, pathological joint changes was ameliorated and the levels of interleukin (IL)-1β and tumor necrosis factor-<alpha>(TNF-α) was decreased significantly. The protein and mRNA expressions of nuclear factor-<kappa>B (NF-κB)(p65), IκB, p-IκB and IκB kinase beta (IκKβ) were also down-regulated. Moreover, the in vitro study revealed that BCBEE treatment inhibited primary synovial cells proliferation, and promoted down-regulation of NF-κB(p65), IκB, p-IκB and IκKβ. CONCLUSIONS Taken together, the present study demonstrates that BCBEE produces a protection in a rat model of RA induced by Ⅱcollagen via inhibiting paw and joint edema, ameliorating pathological joint changes and regulating the levels of cytokines and its action mechanism maybe is via down-regulating NF-κB(p65), IκB, p-IκB and IκKβ expression.
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Affiliation(s)
- Wei Xu
- Pharmacy College of Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian, China.
| | - Mingqing Huang
- Pharmacy College of Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian, China
| | - Yuqin Zhang
- Pharmacy College of Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian, China
| | - Huang Li
- Pharmacy College of Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian, China
| | - Haiyin Zheng
- Integrative Medicine College of Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian, China
| | - Lishuang Yu
- Pharmacy College of Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian, China
| | - Kedan Chu
- Pharmacy College of Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian, China
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Jian J, Xuan F, Qin F, Huang R. The Antioxidant, Anti-Inflammatory and Anti-Apoptotic Activities of the Bauhinia Championii Flavone are Connected with Protection Against Myocardial Ischemia/Reperfusion Injury. Cell Physiol Biochem 2016; 38:1365-75. [PMID: 27007544 DOI: 10.1159/000443080] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Previous studies have demonstrated that Bauhinia championii flavone (BCF) exhibits anti-oxidative, anti-hypoxic and anti-stress properties. This study was designed to investigate whether BCF has a cardioprotective effect against myocardial ischemia/reperfusion (I/R) injuries in rats and to shed light on its possible mechanism. METHODS The model of I/R was established by ligating the left anterior descending coronary artery for 30 min, then reperfusing for 180 min. Hemodynamic changes were continuously monitored. The content of malondialdehyde (MDA) as well as the lactate dehydrogenase (LDH), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities were assessed. The release of interleukin-6 (IL-6) was measured by enzyme-linked immunosorbent assay (ELISA). Apoptosis of cardiomyocytes was determined by caspase-3 activity and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining. The expression of TLR4, NF-x03BA;Bp65, Bcl-2 and Bax were detected by western blotting. RESULTS Pretreatment with BCF significantly reduced the serum levels of LDH, MDA and IL-6, but increased the activities of SOD and GSH-Px. It also attenuated myocardial infarct size, reduced the apoptosis rate and preserved cardiac function. Furthermore, BCF inhibited caspase-3 activity and the expression of TLR4, phosphorylated NF-x03BA;Bp65 and Bax, but enhanced the expression of Bcl-2. CONCLUSION These results provide substantial evidence that BCF exerts a protective effect on myocardial I/R injury, which may be attributed to attenuating lipid peroxidation, the inflammatory response and apoptosis.
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Farag MA, Sakna ST, El-Fiky NM, Shabana MM, Wessjohann LA. Phytochemical, antioxidant and antidiabetic evaluation of eight Bauhinia L. species from Egypt using UHPLC-PDA-qTOF-MS and chemometrics. Phytochemistry 2015; 119:41-50. [PMID: 26410474 DOI: 10.1016/j.phytochem.2015.09.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/06/2015] [Accepted: 09/08/2015] [Indexed: 06/05/2023]
Abstract
Bauhinia L. (Fabaceae) comprises ca. 300-350 plant species, many of which are traditionally used in folk medicine for their antidiabetic, antioxidant and anti-inflammatory effects. Bauhinia s.l. recently has been subdivided into 9 genera based on phylogenetic data: Bauhinia s.str., Barklya, Brenierea, Gigasiphon, Lysiphyllum, Phanera, Piliostigma, Schnella (American Phanera) and Tylosema. The aerial parts of 8 species corresponding to 5 genera were analyzed: Bauhinia forficata, Bauhinia variegata, B. variegata var. candida, Bauhinia galpinii, Schnella glabra, Piliostigma racemosa, Phanera vahlii and Lysiphyllum hookeri. Leaves and shoots were subjected to metabolite profiling via UHPLC-PDA-qTOF-MS coupled to multivariate data analyzes to identify compound compositional differences. A total of 90 metabolites were identified including polyphenols and fatty acids; flavonoid conjugates accounted for most of the metabolite variation observed. This study provides a comprehensive map of polyphenol composition in Bauhinia and phytochemical species aggregations are consistent with recent Bauhinia genus taxonomic relationship derived from phylogenetic studies. DPPH radical scavenging and α-glucosidase inhibitory assays were also performed to assess selected aspects of the antioxidant and antidiabetic potential for the examined species with respect to metabolite profiles.
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Affiliation(s)
- Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, 11562 Cairo, Egypt.
| | - Sarah T Sakna
- Pharmacognosy Department, College of Pharmacy, Cairo University, 11562 Cairo, Egypt
| | - Nabaweya M El-Fiky
- Pharmacognosy Department, College of Pharmacy, Cairo University, 11562 Cairo, Egypt
| | - Marawan M Shabana
- Pharmacognosy Department, College of Pharmacy, Cairo University, 11562 Cairo, Egypt
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
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Ardila JA, Funari CS, Andrade AM, Cavalheiro AJ, Carneiro RL. Cluster analysis of commercial samples of Bauhinia spp. using HPLC-UV/PDA and MCR-ALS/PCA without peak alignment procedure. Phytochem Anal 2015; 26:367-373. [PMID: 26047147 DOI: 10.1002/pca.2571] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 04/23/2015] [Accepted: 04/25/2015] [Indexed: 06/04/2023]
Abstract
INTRODUCTION Bauhinia forficata Link. is recognised by the Brazilian Health Ministry as a treatment of hypoglycemia and diabetes. Analytical methods are useful to assess the plant identity due the similarities found in plants from Bauhinia spp. HPLC-UV/PDA in combination with chemometric tools is an alternative widely used and suitable for authentication of plant material, however, the shifts of retention times for similar compounds in different samples is a problem. OBJECTIVE To perform comparisons between the authentic medicinal plant (Bauhinia forficata Link.) and samples commercially available in drugstores claiming to be "Bauhinia spp. to treat diabetes" and to evaluate the performance of multivariate curve resolution - alternating least squares (MCR-ALS) associated to principal component analysis (PCA) when compared to pure PCA. METHODOLOGY HPLC-UV/PDA data obtained from extracts of leaves were evaluated employing a combination of MCR-ALS and PCA, which allowed the use of the full chromatographic and spectrometric information without the need of peak alignment procedures. RESULTS The use of MCR-ALS/PCA showed better results than the conventional PCA using only one wavelength. Only two of nine commercial samples presented characteristics similar to the authentic Bauhinia forficata spp., considering the full HPLC-UV/PDA data. CONCLUSION The combination of MCR-ALS and PCA is very useful when applied to a group of samples where a general alignment procedure could not be applied due to the different chromatographic profiles. This work also demonstrates the need of more strict control from the health authorities regarding herbal products available on the market.
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Affiliation(s)
- Jorge Armando Ardila
- Department of Chemistry, Federal University of São Carlos, 13565-905, São Carlos, São Paulo, Brazil
| | - Cristiano Soleo Funari
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Tasmania, Australia
- Instituto de Química, Universidade Estadual Paulista, 14800-900, Araraquara, São Paulo, Brazil
- Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, 18610-307, Botucatu, São Paulo, Brazil
| | - André Marques Andrade
- Instituto de Química, Universidade Estadual Paulista, 14800-900, Araraquara, São Paulo, Brazil
| | - Alberto José Cavalheiro
- Instituto de Química, Universidade Estadual Paulista, 14800-900, Araraquara, São Paulo, Brazil
| | - Renato Lajarim Carneiro
- Department of Chemistry, Federal University of São Carlos, 13565-905, São Carlos, São Paulo, Brazil
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Zhou D, Hansen D, Shabalin IG, Gustchina A, Vieira DF, de Brito MV, Araújo APU, Oliva MLV, Wlodawer A. Structure of BbKI, a disulfide-free plasma kallikrein inhibitor. Acta Crystallogr F Struct Biol Commun 2015; 71:1055-62. [PMID: 26249699 PMCID: PMC4528941 DOI: 10.1107/s2053230x15011127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 06/08/2015] [Indexed: 12/19/2022] Open
Abstract
A serine protease inhibitor from Bauhinia bauhinioides (BbKI) belongs to the Kunitz family of plant inhibitors, which are common in plant seeds. BbKI does not contain any disulfides, unlike most other members of this family. It is a potent inhibitor of plasma kallikrein, in addition to other serine proteases, and thus exhibits antithrombotic activity. A high-resolution crystal structure of recombinantly expressed BbKI was determined (at 1.4 Å resolution) and was compared with the structures of other members of the family. Modeling of a complex of BbKI with plasma kallikrein indicates that changes in the local structure of the reactive loop that includes the specificity-determining Arg64 are necessary in order to explain the tight binding. An R64A mutant of BbKI was found to be a weaker inhibitor of plasma kallikrein, but was much more potent against plasmin, suggesting that this mutant may be useful for preventing the breakup of fibrin and maintaining clot stability, thus preventing excessive bleeding.
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Affiliation(s)
- Dongwen Zhou
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Daiane Hansen
- Universidade Federal de São Paulo–Escola Paulista de Medicina, Rua Três de Maio 100, 04044-020 São Paulo-SP, Brazil
| | - Ivan G. Shabalin
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA
| | - Alla Gustchina
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Debora F. Vieira
- Institute of Physics of São Carlos, University of São Paulo, Avenida Trabalhador Sãocarlense 400, 13560-970 São Carlos-SP, Brazil
| | - Marlon V. de Brito
- Institute of Physics of São Carlos, University of São Paulo, Avenida Trabalhador Sãocarlense 400, 13560-970 São Carlos-SP, Brazil
| | - Ana Paula U. Araújo
- Institute of Physics of São Carlos, University of São Paulo, Avenida Trabalhador Sãocarlense 400, 13560-970 São Carlos-SP, Brazil
| | - Maria Luiza V. Oliva
- Universidade Federal de São Paulo–Escola Paulista de Medicina, Rua Três de Maio 100, 04044-020 São Paulo-SP, Brazil
| | - Alexander Wlodawer
- Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
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de Farias PAM, Figueredo FG, Lucas AMB, de Moura RB, Coutinho HDM, da Silva TMS, Martin ALDAR, Fonteles MMDF. Antibiotic-modifying activity of riachin, a non-cyanogenic cyanoglycoside extracted from Bauhinia pentandra. Drug Des Devel Ther 2015; 9:3067-72. [PMID: 26109849 PMCID: PMC4474397 DOI: 10.2147/dddt.s84676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The search for new active compounds from the Brazilian flora has intensified in recent years, especially for new drugs with antibiotic potential. Accordingly, the aim of this study was to determine whether riachin has antibiotic activity in itself or is able to modulate the activity of conventional antibiotics. Methods A non-cyanogenic cyanoglycoside known as riachin was isolated from Bauhinia pentandra, and was tested alone and in combination with three antibiotics (clindamycin, amikacin, and gentamicin) against multiresistant bacterial strains (Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus). Results Riachin did not show significant antibiotic activity when tested alone against any strain (P>0.05). However, when combined with conventional antibiotics, it showed drug-modifying activity against strains of S. aureus exposed to clindamycin (P<0.001) as well as against P. aeruginosa exposed to amikacin (P<0.001). Although riachin did not show direct antibiotic activity, it had synergistic activity when combined with amikacin or clindamycin. The mechanism of action of this synergism is under investigation. Conclusion The results of this work demonstrate that some substances of natural origin can enhance the effectiveness of certain antibiotics, which means a substantial reduction in the drug dose required and possibly in consequent adverse events for patients.
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Affiliation(s)
- Pablo Antonio Maia de Farias
- Development and Technological Innovation in Medicines, Universidade Federal do Ceará – UFC, Juazeiro do Norte-CE, PE, Brazil
- College of Pharmacy, Faculdade de Medicina Estácio de Juazeiro do Norte-Estácio, Juazeiro do Norte-CE, PE, Brazil
| | - Fernando Gomes Figueredo
- College of Biomedicine, Faculdade Leão Sampaio-FLS, Juazeiro do Norte-CE, PE, Brazil
- College of Pharmacy, Faculdade de Medicina Estácio de Juazeiro do Norte-Estácio, Juazeiro do Norte-CE, PE, Brazil
| | - Aline Maria Brito Lucas
- College of Pharmacy, Faculdade de Medicina Estácio de Juazeiro do Norte-Estácio, Juazeiro do Norte-CE, PE, Brazil
| | - Rafael Barbosa de Moura
- College of Pharmacy, Faculdade de Medicina Estácio de Juazeiro do Norte-Estácio, Juazeiro do Norte-CE, PE, Brazil
| | - Henrique Douglas Melo Coutinho
- College of Biomedicine, Faculdade Leão Sampaio-FLS, Juazeiro do Norte-CE, PE, Brazil
- Correspondence: Henrique Douglas Melo Coutinho, Universidade Regional do Cariri, Av Cel Antonio, Luis 1161, Pimenta, Crato, Ceará, CEP 63100-000, Brazil, Tel +55 88 3102 1212, Email
| | | | - Ana Luiza de Aguiar Rocha Martin
- College of Biomedicine, Faculdade Leão Sampaio-FLS, Juazeiro do Norte-CE, PE, Brazil
- College of Pharmacy, Faculdade de Medicina Estácio de Juazeiro do Norte-Estácio, Juazeiro do Norte-CE, PE, Brazil
| | - Marta Maria de França Fonteles
- Development and Technological Innovation in Medicines, Universidade Federal do Ceará – UFC, Juazeiro do Norte-CE, PE, Brazil
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Silva-Lucca RA, Andrade SS, Silva Ferreira R, Sampaio MU, Oliva MLV. Unfolding studies of the cysteine protease baupain, a papain-like enzyme from leaves of Bauhinia forficata: effect of pH, guanidine hydrochloride and temperature. Molecules 2013; 19:233-46. [PMID: 24368603 PMCID: PMC6270875 DOI: 10.3390/molecules19010233] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/12/2013] [Accepted: 12/13/2013] [Indexed: 12/01/2022] Open
Abstract
Baupain belongs to the α+β class of proteins with a secondary structure-content of 44% α-helix, 16% β-sheet and 12% β-turn. The structural transition induced by pH was found to be noncooperative, with no important differences observed in the pH range from 3.0 to 10.5. At pH 2.0 the protein presented substantial non-native structure with strong ANS binding. Guanidine hydrochloride (GdnHCl)-induced unfolding did not change the protein structure significantly until 4.0 M, indicating the high rigidity of the molecule. The unfolding was cooperative, as seen by the sigmoidal transition curves with midpoints at 4.7 ± 0.2 M and 5.0 ± 0.2 M GdnHCl, as measured by CD and fluorescence spectroscopy. A red shift of 7 nm in intrinsic fluorescence was observed with 6.0 M GdnHCl. Temperature-induced unfolding of baupain was incomplete, and at least 35% of the native structure of the protein was retained, even at high temperature (90 °C). Baupain showed characteristics of a molten globule state, due to preferential ANS binding at pH 2.0 in comparison to the native form (pH 7.0) and completely unfolded (6.0 M GdnHCl) state. Combined with information about N-terminal sequence similarity, these results allow us to include baupain in the papain superfamily.
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Affiliation(s)
- Rosemeire A Silva-Lucca
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio, 100, São Paulo 04044-020, SP, Brazil; E-Mails: (R.A.S.-L.); (S.S.A.); (R.S.F.); (M.U.S.)
- Centro de Engenharias e Ciências Exatas, Universidade Estadual do Oeste do Paraná, Rua da Faculdade, 645, Toledo 85903-000, PR, Brazil
| | - Sheila S Andrade
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio, 100, São Paulo 04044-020, SP, Brazil; E-Mails: (R.A.S.-L.); (S.S.A.); (R.S.F.); (M.U.S.)
| | - Rodrigo Silva Ferreira
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio, 100, São Paulo 04044-020, SP, Brazil; E-Mails: (R.A.S.-L.); (S.S.A.); (R.S.F.); (M.U.S.)
| | - Misako U. Sampaio
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio, 100, São Paulo 04044-020, SP, Brazil; E-Mails: (R.A.S.-L.); (S.S.A.); (R.S.F.); (M.U.S.)
| | - Maria Luiza V. Oliva
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua Três de Maio, 100, São Paulo 04044-020, SP, Brazil; E-Mails: (R.A.S.-L.); (S.S.A.); (R.S.F.); (M.U.S.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-11-5579-4444; Fax: +55-5572-3006
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Yuenyongsawad S, Bunluepuech K, Wattanapiromsakul C, Tewtrakul S. Anti-cancer activity of compounds from Bauhinia strychnifolia stem. J Ethnopharmacol 2013; 150:765-769. [PMID: 24120967 DOI: 10.1016/j.jep.2013.09.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 09/04/2013] [Accepted: 09/07/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The stem and root of Bauhinia strychnifolia Craib (Fabaceae family) have been traditionally used in Thailand to treat fever, alcoholic toxication, allergy and cancer. An EtOH extract of Bauhinia strychnifolia showed good inhibitory activity against several cancer cell lines including HT-29, HeLa, MCF-7 and KB. As there has been no previous reports on chemical constituents of Bauhinia strychnifolia, this study is aimed to isolate the pure compounds with anti-cancer activity. MATERIALS AND METHODS Five pure compounds were isolated from EtOH extract of Bauhinia strychnifolia stem using silica gel, dianion HP-20 and sephadex LH-20 column chromatography and were tested for their cytotoxic effects against HT-29, HeLa, MCF-7 and KB cell lines using the Sulforhodamine B (SRB) assay. RESULTS Among five compounds, 3,5,7,3',5'-pentahydroxyflavanonol-3-O-α-l-rhamnopyranoside (2) possessed very potent activity against KB (IC₅₀=0.00054μg/mL), HT-29 (IC₅₀=0.00217 μg/mL), MCF-7 (IC₅₀=0.0585 μg/mL) and HeLa cells (IC₅₀=0.0692 μg/mL). 3,5,7-Trihydroxychromone-3-O-α-l-rhamnopyranoside (3) also showed good activity against HT-29 (IC₅₀=0.02366 μg/mL), KB (IC₅₀=0.0412 μg/mL) and MCF-7 (IC₅₀=0.297 μg/mL), respectively. The activity of 2 (IC₅₀=0.00054 μg/mL) against KB cell was ten times higher than that of the positive control, Camptothecin (anti-cancer drug, IC₅₀=0.0057 μg/mL). All compounds did not show any cytotoxicity with normal cells at the concentration of 1 μg/mL. CONCLUSION This is the first report of compounds 2 and 3 on anti-cancer activity and based on the anti-cancer activity of extracts and pure compounds isolated from Bauhinia strychnifolia stem, it might be suggested that this plant could be useful for treatment of cancer.
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Affiliation(s)
- Supreeya Yuenyongsawad
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
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Moreira GMSG, Conceição FR, McBride AJA, Pinto LDS. Structure predictions of two Bauhinia variegata lectins reveal patterns of C-terminal properties in single chain legume lectins. PLoS One 2013; 8:e81338. [PMID: 24260572 PMCID: PMC3834338 DOI: 10.1371/journal.pone.0081338] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 10/15/2013] [Indexed: 11/18/2022] Open
Abstract
Bauhinia variegata lectins (BVL-I and BVL-II) are single chain lectins isolated from the plant Bauhinia variegata. Single chain lectins undergo post-translational processing on its N-terminal and C-terminal regions, which determines their physiological targeting, carbohydrate binding activity and pattern of quaternary association. These two lectins are isoforms, BVL-I being highly glycosylated, and thus far, it has not been possible to determine their structures. The present study used prediction and validation algorithms to elucidate the likely structures of BVL-I and -II. The program Bhageerath-H was chosen from among three different structure prediction programs due to its better overall reliability. In order to predict the C-terminal region cleavage sites, other lectins known to have this modification were analysed and three rules were created: (1) the first amino acid of the excised peptide is small or hydrophobic; (2) the cleavage occurs after an acid, polar, or hydrophobic residue, but not after a basic one; and (3) the cleavage spot is located 5-8 residues after a conserved Leu amino acid. These rules predicted that BVL-I and -II would have fifteen C-terminal residues cleaved, and this was confirmed experimentally by Edman degradation sequencing of BVL-I. Furthermore, the C-terminal analyses predicted that only BVL-II underwent α-helical folding in this region, similar to that seen in SBA and DBL. Conversely, BVL-I and -II contained four conserved regions of a GS-I association, providing evidence of a previously undescribed X4+unusual oligomerisation between the truncated BVL-I and the intact BVL-II. This is the first report on the structural analysis of lectins from Bauhinia spp. and therefore is important for the characterisation C-terminal cleavage and patterns of quaternary association of single chain lectins.
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Affiliation(s)
- Gustavo M. S. G. Moreira
- Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Fabricio R. Conceição
- Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Alan J. A. McBride
- Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Luciano da S. Pinto
- Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
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Muhammad A, Sirat HM. Potent microbial and tyrosinase inhibitors from stem bark of Bauhinia rufescens (Fabaceae). Nat Prod Commun 2013; 8:1435-1437. [PMID: 24354195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
The stem bark extracts of Bauhinia rufescens Lam. (Fabaceae) yielded 6-methoxy-7-methyl-8-hydroxydibenz[b,f]oxepin, alpha-amyrin acetate, beta-sitosterol 3-O-beta-D-xylopyranoside, 4-(2'-Hydroxyphenethyl)-5-methoxy-2-methylphenol, menisdaurin and sequoyitol. Their structures were determined using spectroscopic methods and comparisons with the literature data. For the antimicrobial assay Gram-positive and Gram-negative bacterial and fungal strains were tested, while the tyrosinase inhibition assay utilized L-DOPA as a substrate for the tyrosinase enzyme. 6-Methoxy-7-methyl-8-hydroxydibenz[b,f]oxepin, a-amyrin acetate, beta-sitosterol 3-O-D-xylopyranoside, menisdaurin and sequoyitol showed weak to moderate activities with minimum inhibition concentration (MIC) values in the range of 112.5-900 microg/mL against all bacterial strains, while the MIC values for the fungal strains were in the range of 28.1-450 microg/mL. In the tyrosinase inhibition assay, a-amyrin acetate was found to be moderately active against tyrosinase with an inhibition of 62% at 0.1 mg/mL. This activity was lower than that of the positive control, kojic acid (85%).
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Affiliation(s)
- Aminu Muhammad
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru, Malaysia
| | - Hasnah Mohd Sirat
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru, Malaysia
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Mishra A, Sharma AK, Kumar S, Saxena AK, Pandey AK. Bauhinia variegata leaf extracts exhibit considerable antibacterial, antioxidant, and anticancer activities. Biomed Res Int 2013; 2013:915436. [PMID: 24093108 PMCID: PMC3777169 DOI: 10.1155/2013/915436] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 08/01/2013] [Indexed: 02/05/2023]
Abstract
The present study reports the phytochemical profiling, antimicrobial, antioxidant, and anticancer activities of Bauhinia variegata leaf extracts. The reducing sugar, anthraquinone, and saponins were observed in polar extracts, while terpenoids and alkaloids were present in nonpolar and ethanol extracts. Total flavonoid contents in various extracts were found in the range of 11-222.67 mg QE/g. In disc diffusion assays, petroleum ether and chloroform fractions exhibited considerable inhibition against Klebsiella pneumoniae. Several other extracts also showed antibacterial activity against pathogenic strains of E. coli, Proteus spp. and Pseudomonas spp. Minimum bactericidal concentration (MBC) values of potential extracts were found between 3.5 and 28.40 mg/mL. The lowest MBC (3.5 mg/mL) was recorded for ethanol extract against Pseudomonas spp. The antioxidant activity of the extracts was compared with standard antioxidants. Dose dependent response was observed in reducing power of extracts. Polar extracts demonstrated appreciable metal ion chelating activity at lower concentrations (10-40 μg/mL). Many extracts showed significant antioxidant response in beta carotene bleaching assay. AQ fraction of B. variegata showed pronounced cytotoxic effect against DU-145, HOP-62, IGR-OV-1, MCF-7, and THP-1 human cancer cell lines with 90-99% cell growth inhibitory activity. Ethyl acetate fraction also produced considerable cytotoxicity against MCF-7 and THP-1 cell lines. The study demonstrates notable antibacterial, antioxidant, and anticancer activities in B. variegata leaf extracts.
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Affiliation(s)
- Amita Mishra
- Department of Biochemistry, University of Allahabad, Allahabad 211002, India
| | - Amit Kumar Sharma
- Department of Biochemistry, University of Allahabad, Allahabad 211002, India
| | - Shashank Kumar
- Department of Biochemistry, University of Allahabad, Allahabad 211002, India
| | - Ajit K. Saxena
- Cancer Pharmacology Division, Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Abhay K. Pandey
- Department of Biochemistry, University of Allahabad, Allahabad 211002, India
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Sayago CTM, Camargo VB, Barbosa F, Gularte C, Pereira G, Miotto S, Cechinel Filho V, Luiz Puntel R, Folmer V, Mendez A. Chemical composition and in vitro antioxidant activity of hydro-ethanolic extracts from Bauhinia forficata subsp. pruinosa and B. variegata. Acta Biol Hung 2013; 64:21-33. [PMID: 23567828 DOI: 10.1556/abiol.64.2013.1.3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Bauhinia species are known to have hypoglycemiant and antioxidant activities. Here, hydro-ethanolic leaf extracts from Bauhinia forficata subsp. pruinosa and Bauhinia variegata, collected in a Pampa biome region of Brazil, were investigated to characterize their chromatographic profile, flavonoid content and in vitro antioxidant activity (TBARS and DPH assays). The extracts were obtained from dried and fresh leaves. The total flavonoid content was assessed by spectrophotometric determination, and the results ranged between 572.08 and 1,102.99 μg mL-1. Moreover, flavonoids were more predominant in B. variegata than in B. forficata subsp. pruinosa. HPLC analysis detected a complex profile of phenolic compounds, being the flavonoid kaempferitrin founded B. forficata subsp. pruinosa; in addition, other kaempferol and quercetin derivatives were present. In vitro antioxidant assays demonstrated a different behavior depending on the species, leaf treatment and extract concentration. In general, B. variegata extracts obtained from fresh material presented higher antioxidant potential, which can be attributed to the predominance of flavonoids in their chemical composition.
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Affiliation(s)
- Carla T M Sayago
- Universidade Federal do Pampa Laboratório de Pesquisa em Desenvolvimento e Controle de Qualidade de Medicamentos, Uruguaiana, Brazil
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Nakahata AM, Mayer B, Neth P, Hansen D, Sampaio MU, Oliva MLV. Blocking the proliferation of human tumor cell lines by peptidase inhibitors from Bauhinia seeds. Planta Med 2013; 79:227-235. [PMID: 23345168 DOI: 10.1055/s-0032-1328156] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In cancer tumors, growth, invasion, and formation of metastasis at a secondary site play a pivotal role, participating in diverse processes in the development of the pathology, such as degradation of extracellular matrix. Bauhinia seeds contain relatively large quantities of peptidase inhibitors, and two Bauhinia inhibitors were obtained in a recombinant form from the Bauhinia bauhinioides species, B. bauhinoides cruzipain inhibitor, which is a cysteine and serine peptidase inhibitor, and B. bauhinioides kallikrein inhibitor, which is a serine peptidase inhibitor. While recombinant B. bauhinoides cruzipain inhibitor inhibits human neutrophil elastase cathepsin G and the cysteine proteinase cathepsin L, recombinant B. bauhinioides kallikrein inhibitor inhibits plasma kallikrein and plasmin. The effects of recombinant B. bauhinoides cruzipain inhibitor and recombinant B. bauhinioides kallikrein inhibitor on the viability of tumor cell lines with a distinct potential of growth from the same tissue were compared to those of the clinical cytotoxic drug 5-fluorouracil. At 12.5 µM concentration, recombinant B. bauhinoides cruzipain inhibitor and recombinant B. bauhinioides kallikrein inhibitor were more efficient than 5-fluorouracil in inhibiting MKN-28 and Hs746T (gastric), HCT116 and HT29 (colorectal), SkBr-3 and MCF-7 (breast), and THP-1 and K562 (leukemia) cell lines. Additionally, recombinant B. bauhinoides cruzipain inhibitor inhibited 40 % of the migration of Hs746T, the most invasive gastric cell line, while recombinant B. bauhinioides kallikrein inhibitor did not affect cell migration. Recombinant B. bauhinioides kallikrein inhibitor and recombinant B. bauhinoides cruzipain inhibitor, even at high doses, did not affect hMSC proliferation while 5-fluorouracil greatly reduced the proliferation rates of hMSCs. Therefore, both recombinant B. bauhinoides cruzipain inhibitor and recombinant B. bauhinioides kallikrein inhibitor might be considered for further studies to block peptidase activities in order to target specific peptidase-mediated growth and invasion characteristics of individual tumors, mainly in patients resistant to 5-fluorouracil chemotherapy.
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Affiliation(s)
- Adriana Miti Nakahata
- Department of Biochemistry, Universidade Federal de São Paulo-Escola Paulista de Medicina, Rua Três de Maio 100, São Paulo, Brazil
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Hisam EEA, Zakaria ZA, Mohtaruddin N, Rofiee MS, Hamid HA, Othman F. Antiulcer activity of the chloroform extract of Bauhinia purpurea leaf. Pharm Biol 2012; 50:1498-1507. [PMID: 22954284 DOI: 10.3109/13880209.2012.685945] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CONTEXT Bauhinia purpurea L. (Fabaceae) is a native plant species of many Asian countries, including Malaysia and India. In India, the root, stem, bark, and leaf of B. purpurea are used to treat various ailments, including ulcers and stomach cancer. OBJECTIVE In an attempt to establish its pharmacological potential, we studied the antiulcer activity of lipid-soluble extract of B. purpurea obtained via extraction of air-dried leaves using chloroform. MATERIALS AND METHODS The rats were administered the chloroform extract (dose range of 100-1000 mg/kg) orally after 24 h fasting. They were subjected to the absolute ethanol- and indomethacin-induced gastric ulcer, and pyloric ligation assays after 30 min. The acute toxicity study was conducted using a single oral dose of 5000 mg/kg extract and the rats were observed for the period of 14 days. omeprazole (30 mg/kg) was used as the standard control. RESULTS At 5000 mg/kg, the extract produced no sign of toxicity in rats. The extract exhibited significant (p < 0.05) dose-dependent antiulcer activity for the ethanol-induced model. The extract also significantly (p < 0.05) increased the gastric wall mucus production and pH of gastric content, while significantly (p < 0.05) reducing the total volume and total acidity of the gastric content in the pylorus ligation assay. DISCUSSION AND CONCLUSION The extract possesses antiulcer, antisecretory and cytoprotective activities, which could be attributed to its flavonoid and tannin content. These findings provide new information regarding the potential of lipid-soluble compounds of B. purpurea for the prevention and treatment of gastric ulcers.
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Affiliation(s)
- Elly Ezlinda Abdul Hisam
- Faculty of Pharmacy, Universiti Teknologi MARA , Puncak Alam Campus, Bandar Puncak Alam, Selangor, Malaysia
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Abstract
A new dihydroflavonol glycoside dimer 6,6-bisastilbin (1) and a new nitrile-containing metabolite (Z)-5α,6β-dihydroxy-4β-methoxy-2-cyclohexene-Δ(1,α)-acetonitrile (2), together with three known analogs, bauhinin, bauhinilide, and dehydrodicatechin A, have been isolated from an ethanol extract of Bauhinia aurea. Their structures were determined by spectroscopic and chemical methods.
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Affiliation(s)
- Xiao-Ya Shang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100050, China
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Neto LGDN, Pinto LDS, Bastos RM, Evaristo FFV, de Vasconcelos MA, Carneiro VA, Arruda FVS, Porto ALF, Leal RB, Júnior VADS, Cavada BS, Teixeira EH. Effect of the lectin of Bauhinia variegata and its recombinant isoform on surgically induced skin wounds in a murine model. Molecules 2011; 16:9298-315. [PMID: 22064270 PMCID: PMC6264313 DOI: 10.3390/molecules16119298] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 10/20/2011] [Accepted: 10/27/2011] [Indexed: 11/16/2022] Open
Abstract
Lectins are a structurally heterogeneous group of highly specific carbohydrate-binding proteins. Due to their great biotechnological potential, lectins are widely used in biomedical research. The purpose of the present study was to evaluate the healing potential of the lectin of Bauhinia variegata (nBVL) and its recombinant isoform (rBVL-1). Following surgical creation of dorsal skin wounds, seven groups of mice were submitted to topical treatment for 12 days with lectin, D-galactose, BSA and saline. The animals were anesthetized and euthanized on POD 2, 7 and 12 in order to evaluate the healing potential of each treatment. The parameters considered included wound size, contraction rate, epithelialization rate and histopathological findings. Wound closure was fastest in animals treated with rBVL-1 (POD 7). nBVL was more effective than the controls. All skin layers were reconstructed and keratin deposition increased. Our findings indicate that the lectin of Bauhinia variegata possesses pro-healing properties and may be employed in the treatment of acute skin wounds.
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Affiliation(s)
- Luiz Gonzaga do Nascimento Neto
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Luciano da Silva Pinto
- Center for Technological Development (CDTec), Unidad of Biotecnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, 96010-900, Brazil; E-Mail: (L.d.S.P.)
| | - Rafaela Mesquita Bastos
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Francisco Flávio Vasconcelos Evaristo
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Mayron Alves de Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará 60451-970, Brazil; E-Mails: (M.A.V.); (B.S.C.)
| | - Victor Alves Carneiro
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Francisco Vassiliepe Sousa Arruda
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
| | - Ana Lúcia Figueiredo Porto
- Department of Animal Morphology and Physiology, Federal Rural University of Pernambuco, Recife, Pernambuco 52171-900, Brazil; E-Mails: (A.L.F.P.); (V.A.d.S.J.)
| | - Rodrigo Bainy Leal
- Department of Biochemistry, CBB, Federal University of Santa Catarina, Santa Catarina 88040-970, Brazil; E-Mail: (B.B.L.)
| | - Valdemiro Amaro da Silva Júnior
- Department of Animal Morphology and Physiology, Federal Rural University of Pernambuco, Recife, Pernambuco 52171-900, Brazil; E-Mails: (A.L.F.P.); (V.A.d.S.J.)
| | - Benildo Sousa Cavada
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará 60451-970, Brazil; E-Mails: (M.A.V.); (B.S.C.)
| | - Edson Holanda Teixeira
- Integrated Laboratory of Biomolecules (LIBS), School of Medicine of the Federal University of Ceará, Sobral, Ceará 62042-280, Brazil; E-Mails: (L.G.N.N.); (R.M.B.); (F.F.V.E.); (V.A.C.); (F.V.S.A.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-88-3611-8000; Fax: +55-88-3611-2202
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Zakaria ZA, Abdul Hisam EE, Rofiee MS, Norhafizah M, Somchit MN, Teh LK, Salleh MZ. In vivo antiulcer activity of the aqueous extract of Bauhinia purpurea leaf. J Ethnopharmacol 2011; 137:1047-1054. [PMID: 21802502 DOI: 10.1016/j.jep.2011.07.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 07/12/2011] [Accepted: 07/12/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bauhinia purpurea (Fabaceae) is a medicinal plant traditionally used to treat various ailments, including ulcers. In order to establish pharmacological properties of the leaf of Bauhinia purpurea, studies were performed on antiulcer activity of the plant's aqueous extract. MATERIALS AND METHODS The Bauhinia purpurea aqueous extract (BPAE) was prepared in the doses of 100, 500 and 1,000 mg/kg. Antiulcer activity of BPAE was evaluated by absolute ethanol- and indomethacin-induced gastric ulcer, and pyloric ligation models. Acute toxicity was also carried out. RESULTS BPAE, at the dose of 5,000 mg/kg, did not cause any signs of toxicity to rats when given orally. Oral administration of BPAE exhibited antiulcer activity (p<0.05) in all models used. However, the dose-dependent activity was observed only in the absolute ethanol-induced gastric ulcer model. Histological studies supported the observed antiulcer activity of BPAE. In pyloric ligation assay, BPAE increased the gastric wall mucus secretion. CONCLUSIONS The BPAE exhibits antiulcer activity, which could be due to the presence of saponins or sugar-free polyphenols, and, thus, confirmed the traditional uses of Bauhinia purpurea in the treatment of ulcers.
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Affiliation(s)
- Z A Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
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Zhao QL, Wu ZB, Zheng ZH, Lu XH, Liang H, Cheng W, Zhang QY, Zhao YY. [Phenolic acid derivatives from Bauhinia glauca subsp. pernervosa]. Yao Xue Xue Bao 2011; 46:946-950. [PMID: 22007520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
To study the chemical constituents of Bauhinia glauca subsp. pernervosa, eleven phenolic acids were isolated from a 95% ethanol extract by using a combination of various chromatographic techniques including column chromatography over silica gel, ODS, MCI, Sephadex LH-20, and semi-preparative HPLC. By spectroscopic techniques including 1H NMR, 13C NMR, 2D NMR, and HR-ESI-MS, these compounds were identified as isopropyl O-beta-(6'-O-galloyl)-glucopyranoside (1), ethyl O-beta-(6'-O-galloyl)-glucopyranoside (2), 3, 4, 5-trimethoxyphenyl-(6'-O-galloyl)-O-beta-D-glucopyranoside (3), 3, 4, 5-trimethoxyphenyl-beta-D-glucopyranoside (4), gallic acid (5), methyl gallate (6), ethyl gallate (7), protocatechuic acid (8), 3, 5-dimethoxy-4-hydroxybenzoic acid (9), erigeside C (10) and glucosyringic acid (11). Among them, compound 1 is a new polyhydroxyl compound; compounds 2, 10, and 11 were isolated from the genus Bauhinia for the first time, and the other compounds were isolated from the plant for the first time. Compounds 6 and 8 showed significant protein tyrosine phosphatase1B (PTP1B) inhibitory activity in vitro with the IC50 values of 72.3 and 54.1 micromol x L(-1), respectively.
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Affiliation(s)
- Qiao-Li Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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Ojezele MO, Abatan OM. Hypoglycaemic and coronary risk index lowering effects of Bauhinia thoningii in alloxan induced diabetic rats. Afr Health Sci 2011; 11:85-89. [PMID: 21572862 PMCID: PMC3092328] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND Disease, one of humanity's greatest adversaries, has in recent times showed an intimidating increase in numerical and pathological strength. This stretched the available medications to the limit thereby necessitating the need for the discovery of new and alternative medications to combat the menace of disease. Diabetic mellitus is one disease condition for which ideal synthetic drugs are yet to be discovered. To this end, pharmaceuticals are looking in the direction of medicinal plants. OBJECTIVE This work aimed at screening Bauhinia thoningii (leaves) for its hypoglycaemic effect. The effect of the extract on lipid profile as a Coronary Risk Index (CRI) was also evaluated. METHODS Aqueous crude extract of the plant was administered orally to alloxan induced diabetic rats and fasting blood glucose monitored over a period of 7 days. Blood samples collected from the rats were assayed for full lipid profile and the CRI calculated. RESULTS Bauhinia thoningii caused 81.37% reduction in blood glucose of the experimental animals over a period of 7 days from an initial 365 mg/dl to 68 mg/dl. The plant extract was also observed to have the capacity to ameliorate diabetic complications like cardiovascular disorders. The extract reduced the Low Density lipoprotein (LDL) and reduced the CRI. CONCLUSIONS Results from this study confirmed the hypoglycaemic efficacy of the extract and ability to ameliorate coronary diabetic complications. Further study is required to purify the plant extract to identify the fraction(s) that are responsible for the hypoglycaemic effects observed. This will also help to isolate the active components and elucidate the likely mechanism of action of the plant extract.
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Affiliation(s)
- M O Ojezele
- Department of Veterinary Physiology, Pharmacology & Biochemistry University of Ibadan, Ibadan, Nigeria.
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41
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Abstract
From the seed pods of Bauhinia retusa, a new eudesmane sesquiterpene glucoside, 1-O-β-D-glucopyranosyl-9β,15-dihydroxy-5α,6βH-eudesma-3-ene-6α,12-olide (1), has been isolated together with three known compounds, 4'-hydroxy-7-methoxy flavane (2), β-sitosterol (3), and stigmasterol (4). The structures of isolated compounds were verified with the help of 1D, 2D NMR, and HR-ESI-MS spectroscopies. Compound 1 showed moderate antibacterial activity against Pseudomonas aeruginosa and Escherichia coli when a disc diffusion method is used.
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Affiliation(s)
- Sushma Semwal
- Department of Chemistry, HNB Garhwal Central University Srinagar, Uttarakhand, India.
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Frankish N, de Sousa Menezes F, Mills C, Sheridan H. Enhancement of insulin release from the beta-cell line INS-1 by an ethanolic extract of Bauhinia variegata and its major constituent roseoside. Planta Med 2010; 76:995-997. [PMID: 20143296 DOI: 10.1055/s-0029-1240868] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Plants of the genus Bauhinia are used in several countries worldwide for the treatment of diabetes, and several related species have been shown to have hypoglycaemic effects in vivo in both normoglycaemic and alloxan- and streptozotocin-treated animal models. In this study, the insulin-secreting cell line INS-1 was used to examine the effects of the crude ethanolic extract of leaves of B. variegata L. var. Candida Voidt and its major metabolite (6 S,7 E,9 R)-9-hydroxymegastigma-4,7-dien-3-one-9- beta-glycopyraroside (roseoside) on insulinotropic activity. The crude extracts and the major metabolite were shown to increase insulin secretion in a dose-dependant manner.
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Affiliation(s)
- Neil Frankish
- Trinity College Dublin, School of Pharmacy and Pharmaceutical Sciences, Dublin, Ireland.
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Gadotti VM, Schmeling LO, Machado C, Liz FH, Filho VC, Meyre-Silva C, Santos ARS. Antinociceptive action of the extract and the flavonoid quercitrin isolated from Bauhinia microstachya leaves. J Pharm Pharmacol 2010; 57:1345-51. [PMID: 16259764 DOI: 10.1211/jpp.57.10.0014] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Abstract
This study examined the antinociceptive effect of Bauhinia microstachya (Leguminosae), a native plant widely distributed in the South of Brazil, in several chemical and mechanical models of pain. The methanolic extract (ME) from B. microstachya (3–30 mg kg−1, i.p.) and the isolated compound quercitrin (1–10 mg kg−1, i.p.), given 30 min earlier, produced a dose-dependent inhibition of acetic-acid-induced visceral pain in mice, with a mean ID50 value (dose necessary to reduce the nociceptive response by 50% relative to the control value) of 7.9 and 2.4 mg kg−1, respectively. The ME of B. microstachya (3–100 mg kg−1, i.p., 30 min earlier) also caused a dose-dependent inhibition of capsaicin-induced pain, with a mean ID50 value of 18.8 mg kg−1. Moreover, the ME (3–100 mg kg−1, i.p., 30 min earlier) produced marked inhibition of both phases of formalin-induced pain, with mean ID50 values for the neurogenic and the inflammatory phases of 30.3 and 17.2 mg kg−1, respectively. In addition, the ME of B. microstachya (3–300 mg kg −1, i.p., 30 min earlier) inhibited, in a graded manner, the hyperalgesia induced by bradykinin (3.2 μg/paw), substance P (13.5 μg/paw), carrageenan (300 μg/paw), capsaicin (100 μg/paw) and adrenaline (100ng/paw) in the rat paw, with mean ID50 values of 20.5, 17.9, 101.8, 54.2 and 99.7 mg kg−1, respectively. Taken together, these data demonstrate that ME of B. microstachya elicited a pronounced antinociceptive action against several chemical and mechanical models of pain in mice and rats. The precise mechanism responsible for the antinociceptive effect of the extract still remains unclear, but seems to be partly related to modulation of the release or action of pro-inflammatory mediators involved in the models of pain used. Finally, the flavonoid quercitrin isolated from this plant appears to contribute for the antinociceptive property of the methanolic extract.
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Affiliation(s)
- Vinícius M Gadotti
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis 88040-900, SC, Brazil
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44
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Sumikawa JT, Brito MVD, Macedo MLR, Uchoa AF, Miranda A, Araujo APU, Silva-Lucca RA, Sampaio MU, Oliva MLV. The defensive functions of plant inhibitors are not restricted to insect enzyme inhibition. Phytochemistry 2010; 71:214-220. [PMID: 19939420 DOI: 10.1016/j.phytochem.2009.10.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2009] [Revised: 06/05/2009] [Accepted: 10/11/2009] [Indexed: 05/28/2023]
Abstract
Three plant proteinase inhibitors BbKI (kallikrein inhibitor) and BbCI (cruzipain inhibitor) from Bauhinia bauhinioides, and a BrTI (trypsin inhibitor) from B. rufa, were examined for other effects in Callosobruchus maculatus development; of these only BrTI affected bruchid emergence. BrTI and BbKI share 81% identities in their primary sequences and the major differences between them are the regions comprising the RGD and RGE motifs in BrTI. These sequences were shown to be essential for BrTI insecticidal activity, since a modified BbKI [that is a recombinant form (BbKIm) with some amino acid residues replaced by those found in BrTI sequence] also strongly inhibited insect development. By using synthetic peptides related to the BrTI sequence, YLEAPVARGDGGLA-NH2 (RGE) and IVYYPDRGETGL-NH2 (RGE), it was found that the peptide with an RGE sequence was able to block normal development of C. maculatus larvae (ED(50) 0.16% and LD(50) 0.09%), this being even more effective than the native protein.
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Affiliation(s)
- Joana Tomomi Sumikawa
- Department of Biochemistry, Universidade Federal de São Paulo, Rua Três de Maio, 100 Vila Clementino, CEP 04044-020, São Paulo, SP, Brazil
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45
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Kannan N, Renitta RE, Guruvayoorappan C. Bauhinia tomentosa stimulates the immune system and scavenges free radical generation in vitro. J Basic Clin Physiol Pharmacol 2010; 21:157-168. [PMID: 20853598 DOI: 10.1515/jbcpp.2010.21.2.157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A methanolic extract of Bauhinia tomentosa was studied for its immunomodulatory, antioxidant, and anti-inflammatory activity in BALB/c mice. Intraperitoneal administration of the extract significantly increased the total leukocyte account (10075 +/- 542 cells/cm2) on the 18th day, bone marrow cellularity (93.1 x 10(5) +/- 3.35 cells/femur), and alpha-esterase positive cells (1332 +/- 32 cells/4000 bone marrow cells) when compared with untreated control mice. The weights of lymphoid organs, such as spleen and thymus, also increased. An evaluation of the antioxidant activity of B. tomentosa revealed that the extract inhibited non-enzymic lipid peroxidation in mouse liver microsomes at all concentrations, with an IC50 value of 90 microg/ml. For nitric oxide radical scavenging activity, the IC50 of B. tomentosa was 65.0 microg/ml, indicating that B. tomentosa is a good antioxidant. The anti-inflammatory effect B. tomentosa also significantly reduced acute inflammation of the paw edema induced by carrageenan and formalin.
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Affiliation(s)
- Narayanan Kannan
- Department ofBiotechnology Karunya University Karunya Nagar, Coimbatore, Tamil Nadu, India
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46
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da Cunha AM, Menon S, Menon R, Couto AG, Bürger C, Biavatti MW. Hypoglycemic activity of dried extracts of Bauhinia forficata Link. Phytomedicine 2010; 17:37-41. [PMID: 19577450 DOI: 10.1016/j.phymed.2009.06.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 04/16/2009] [Accepted: 06/04/2009] [Indexed: 05/28/2023]
Abstract
Leaves of the pantropical genus Bauhinia (Fabaceae) are known popularly as cow's foot, due to their unique characteristic bilobed aspect. The species Bauhinia forficata (Brazilian Orchid-tree) is widely used in folk medicine as an antidiabetic. The present work investigates the hypoglycemic activity of the dried extracts of Bauhinia forficata leaves in vivo, as well as the influence of the drying and granulation processes on this activity. The fluid extract was dried to generate oven-dried (ODE), spray-dried (SDE) and wet granulation (WGE) extracts, with the aid of colloidal silicon dioxide and/or cellulose:lactose mixture. The dried extracts were characterized by spectrophotometric, chromatographic and photo microscopy image analysis. 200 mg/kg body wt., p.o. of each dried product were administered orally to male Wistar rats over 7 days old, for biomonitoring of the hypoglycemic activity profile. The effect of the extracts was studied in STZ-induced diabetic rats. After 7 days of treatment, fasting glucose was determined, and the livers were removed, dried on tissue paper, weighed, and stored at -20 degrees C to estimate hepatic glycogen. Our results show that spray-drying or oven-drying processes applied to B. forficata extracts did not significantly alter its flavonoid profile or its hypoglycemic activity. Indeed, the dried extracts of B. forficata act differently from glibenclamide. Despite the lower active content in WGE, because of the higher concentration of adjuvants, the use of the granulation process improved the manufacturing properties of the ODE, making this material more appropriate for use in tablets or capsules.
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Affiliation(s)
- A M da Cunha
- Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Curso de Farmácia, CCS, Universidade do Vale do Itajaí (UNIVALI), Itajaí, Santa Catarina (SC), 88302-202, Brazil
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47
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Wu Z, Wang B, Zhao Y, Yang X, Liang H. [Chalcones from Bauhinia glauca subsp. pernervosa]. Zhongguo Zhong Yao Za Zhi 2009; 34:1676-1678. [PMID: 19873779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To study the chemical constituents of Bauhinia glauca subsp. pernervosa. METHOD The coulis of B. glauca subsp. pernervosa were extracted with 95% EtOH at room temperature. The compounds were isolated and separated by chromatographic techniques, and structures were identified by spectroscopic methods. RESULT Seven chalcones were isolated and identified: butein-4-methyl ether (1), isoliquiritigenin (2), butein (3), isoliquiritigenin-2'-methyl ether (4), 2',4'-dihydroxychalcone (5), isoliquiritigenin-4-methyl ether (6), 4-hydroxy-2',4'-dimethoxychalcone (7). CONCLUSION Compounds 1, 3, and 7 were isolated from the genus Bauhinia for the first time, the other compounds were obtained from this plant for the first time.
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Affiliation(s)
- Zengbao Wu
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
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Agrawal RC, Pandey S. Evaluation of anticarcinogenic and antimutagenic potential of Bauhinia variegata extract in Swiss albino mice. Asian Pac J Cancer Prev 2009; 10:913-916. [PMID: 20104989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Infusions from the bark of Bauhinia is used to treat various diseases in the traditional medical system of India and decoction of the roots is used in dyspepsia and act as an antidote to snake poison. Its chemopreventive potential for cancer was the subject of the present study. MATERIALS AND METHODS To evaluate the anticarcinogenicity and antimutagenicity of Kachanar extract a skin carcinogenesis and melanoma tumour model was used, along with micronucleus and chromosomal aberration tests, in Swiss albino mice. RESULTS In the skin papilloma model, significant prevention, with delayed appearance and reduction in the cumulative no. of papillomas was observed in the DMBA + Kachanar + croton oil treated group as compared to the DMBA + Croton Oil group. C57 Bl mice which received a 50 % methanolic extract of Kachanar extract at the doses of 500 and 1,000 mg/ kg body weight for 30 days showed increase in life span and tumour size was significantly reduced as compared to controls. In antimutagenicity studies, a single application of Kachanar extract at doses of 300, 600 and 900 mg/kg dry weight, 24 hours prior the i.p. administration of cyclophosphamide (at 50 mg/kg) significantly prevented micronucleus formation and chromosomal aberrations in bone marrow cells of mice, in a dose dependent manner. CONCLUSIONS Our results suggest that Kachanar extract exerts anticarcinogenic and antimutagenic activity.
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Affiliation(s)
- R C Agrawal
- Research Department, Jawaharlal Nehru Cancer Hospital and Research Centre, Bhopal, India.
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49
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Abstract
A dimeric 64-kDa melibiose-binding lectin was isolated from the seeds of Bauhinia variegata. The isolation procedure comprised affinity chromatography on Affi-gel blue gel, ion exchange chromatography on Mono Q, and gel filtration on Superdex 75. The lectin was adsorbed on the first two chromatographic media. Its hemagglutinating activity was stable after 30-min exposure to temperatures up to 70 degrees C. Since lectins may demonstrate biological activities such as antiproliferative, immunomodulatory, antifungal, antiviral, and HIV-1 reverse transcriptase inhibitory activities, the isolated lectin was tested for these activities. It was found that the lectin inhibited proliferation in hepatoma HepG2 cells and breast cancer MCF7 cells with an IC(50) of 1.4 microM and 0.18 microM, respectively. HIV-1 reverse transcriptase activity was inhibited with an IC(50) of 1.02 microM. The lectin and concanavalin A (Con A) evoked maximal mitogenic response from mouse splenocytes at similar concentrations, but the maximal response to B. variegata lectin was only 1/5 of that induced by Con A in magnitude. B. variegata lectin was devoid of antifungal activity.
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Affiliation(s)
- Peng Lin
- Department of Biochemistry, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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50
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Khalil NM, Pepato MT, Brunetti IL. Free radical scavenging profile and myeloperoxidase inhibition of extracts from antidiabetic plants: Bauhinia forficata and Cissus sicyoides. Biol Res 2008; 41:165-171. [PMID: 18949134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
There is abundant evidence that reactive oxygen species are implicated in several physiological and pathological processes. To protect biological targets from oxidative damage, antioxidants must react with radicals and other reactive species faster than biological substrates do. The aim of the present study was to determine the in vitro antioxidant activity of aqueous extracts from leaves of Bauhinia forficata Link (Fabaceae-Caesalpinioideae) and Cissus sicyoides L. (Vitaceae) (two medicinal plants used popularly in the control of diabetes mellitus), using several different assay systems, namely, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) decolorization, superoxide anion radical (O2(.-)) scavenging and myeloperoxidase (MPO) activity. In the ABTS assay for total antioxidant activity, B. forficata showed IC50 = 8.00+/-0.07 microg/mL, while C. sicyoides showed IC50 = 13.0+/-0.2 microg/mL. However, the extract of C. sicyoides had a stronger effect on O2(.-) (IC50 = 60.0+/-2.3 microg/mL) than the extract of B. forficata (IC50 = 90.0+/-4.4 microg/mL). B. forficata also had a stronger inhibitory effect on MPO activity, as measured by guaiacol oxidation, than C. sicyoides. These results indicate that aqueous extracts of leaves of B. forficata and C. sicyoides are a potential source of natural antioxidants and may be helpful in the prevention of diabetic complications associated with oxidative stress.
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Affiliation(s)
- Najeh M Khalil
- Clinical Analysis Department, School of Pharmaceutical Sciences, Araraquara-UNESP-São Paulo StateUniversity, São Paulo, Brazil
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