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Xie N, Guo Q, Li H, Yuan G, Gui Q, Xiao Y, Liao M, Yang L. Integrated transcriptomic and WGCNA analyses reveal candidate genes regulating mainly flavonoid biosynthesis in Litsea coreana var. sinensis. BMC PLANT BIOLOGY 2024; 24:231. [PMID: 38561656 PMCID: PMC10985888 DOI: 10.1186/s12870-024-04949-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
Litsea coreana Levl. var. sinensis (Allen) Yang et P. H. Huang is a popular ethnic herb and beverage plant known for its high flavonoid content, which has been linked to a variety of pharmacological benefits and crucial health-promoting impacts in humans. The progress in understanding the molecular mechanisms of flavonoid accumulation in this plant has been hindered due to the deficiency of genomic and transcriptomic resources. We utilized a combination of Illumina and Oxford Nanopore Technology (ONT) sequencing to generate a de novo hybrid transcriptome assembly. In total, 126,977 unigenes were characterized, out of which 107,977 were successfully annotated in seven public databases. Within the annotated unigenes, 3,781 were categorized into 58 transcription factor families. Furthermore, we investigated the presence of four valuable flavonoids-quercetin-3-O-β-D-galactoside, quercetin-3-O-β-D-glucoside, kaempferol-3-O-β-D-galactoside, and kaempferol-3-O-β-D-glucoside in 98 samples, using high-performance liquid chromatography. A weighted gene co-expression network analysis identified two co-expression modules, MEpink and MEturquoise, that showed strong positive correlation with flavonoid content. Within these modules, four transcription factor genes (R2R3-MYB, NAC, WD40, and ARF) and four key enzyme-encoding genes (CHI, F3H, PAL, and C4H) emerged as potential hub genes. Among them, the R2R3-MYB (LcsMYB123) as a homologous gene to AtMYB123/TT2, was speculated to play a significant role in flavonol biosynthesis based on phylogenetic analysis. Our findings provided a theoretical foundation for further research into the molecular mechanisms of flavonoid biosynthesis. Additionally, The hybrid transcriptome sequences will serve as a valuable molecular resource for the transcriptional annotation of L. coreana var. sinensis, which will contribute to the improvement of high-flavonoid materials.
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Affiliation(s)
- Na Xie
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Qiqaing Guo
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China.
| | - Huie Li
- College of Agriculture, Guizhou University, Guiyang, 550025, China
| | - Gangyi Yuan
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Qin Gui
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Yang Xiao
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Mengyun Liao
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Lan Yang
- Institute for Forest Resources and Environment of Guizhou, College of Forestry, Guizhou University, Guiyang, 550025, China
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Chechani B, Roat P, Hada S, Yadav DK, Kumari N. Psidium guajava: An Insight into Ethnomedicinal Uses, Phytochemistry, and Pharmacology. Comb Chem High Throughput Screen 2024; 27:2-39. [PMID: 37170987 DOI: 10.2174/1386207326666230426093315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 11/08/2022] [Accepted: 11/16/2022] [Indexed: 05/13/2023]
Abstract
BACKGROUND Psidium guajava (guava) is widely distributed in tropical and subtropical regions and adapted to various environmental conditions. Guava is an important economic fruit widely used as food and folk medicine. It contains flavonoids, alkaloids, tannins, triterpenoids, reducing sugars, essential oils, carotenoids, polyphenols, etc. The presence of triterpenoid acids such as guavacoumaric, ursolic, jacoumaric, guajavanoic, guavenoic, and Asiatic acids helps to develop novel drugs against various diseases. It is used traditionally for medicinal purposes, mainly for antioxidant, antimicrobial, antispasmodic, antidiabetic, anticancer, antiallergy, anti-inflammatory, and hepato-protective properties. OBJECTIVE The systematic literature study aims to summarize its botanical description, phytochemicals, pharmacological activities, and clinical trials. This review focuses on the plant's chemical composition and scientific approaches to human welfare. METHODS A systematic literature search was done on Psidium guajava through previous literature and online databases such as Google Scholar, Pubmed, Science Direct, etc., to explain its ethnomedicinal uses, phytochemistry, and pharmacological applications. RESULTS Previous literature studies of Psidium guajava suggest it can serve as antioxidant, antimicrobial, antispasmodic, antidiabetic, anticancer, anti-allergy, anti-inflammatory, and hepatoprotective effects. Successful clinical trials performed on the plant extracts against infantile rotaviral enteritis and infectious gastroenteritis showed future directions to work with the plant for clinical applications. CONCLUSION In this review, an attempt is made to show all literature studied, especially in phytochemistry, pharmacology, clinical trials and uses as traditional folk medicine around the world. The leaves have been used by folklore over the years to treat various ailments such as skin ulcers, diarrhoea, vaginal irritation, cough, conjunctivitis, etc. Further studies are required to explore more therapeutic remedies and to develop new medicines for future perspectives.
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Affiliation(s)
- Bhawna Chechani
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Priyanka Roat
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Sonal Hada
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Dinesh Kumar Yadav
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Neetu Kumari
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
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Hidayat MA, Rohmah A, Ningsih IY, Kuswandi B. Development of the paper-based colorimetric sensor for simple and fast determination of quercetin in guava leaf extract. ANAL SCI 2023; 39:1703-1710. [PMID: 37286858 DOI: 10.1007/s44211-023-00380-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023]
Abstract
This present study aimed to develop a paper-based colorimetric sensor in the form of paper-microzone plates (PµZP), for simple and fast quercetin determination in guava leaf extract samples. Here, N-bromosuccinimide (NBS) solution was immobilized on the microzone as a sensing probe, where quercetin solution can be dropped on it to form red-purplish color adducts which can be seen by the naked eye or captured using a flatbed scanner. The color intensity of the microzone can be quantified against a blank solution and used as analytical data in scanometric assay. The sensor showed a response time of 8 min, a linear interval of 1-10 mM with a detection limit at 1.274 mM toward quercetin, and exhibited good reproducibility (RSD < 1%) and accuracy (98-99% recovery). The quercetin level of guava leaf extract determined by the PµZP-scanometric method was found comparable with that of the TLC-densitometric method, suggesting its use as an alternative method for quercetin analysis in the guava leaf extract.
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Affiliation(s)
| | - Alfiatur Rohmah
- Chemo and Biosensor Group, Faculty of Pharmacy, University of Jember, Jember, Indonesia
| | - Indah Yulia Ningsih
- Chemo and Biosensor Group, Faculty of Pharmacy, University of Jember, Jember, Indonesia
| | - Bambang Kuswandi
- Chemo and Biosensor Group, Faculty of Pharmacy, University of Jember, Jember, Indonesia
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Abd El-Aziz E, Zayed M, Mohamed AL, Hassabo AG. Enhancement of the Functional Performance of Cotton and Polyester Fabrics upon Treatment with Polymeric Materials Having Different Functional Groups in the Presence of Different Metal Nanoparticles. Polymers (Basel) 2023; 15:3047. [PMID: 37514435 PMCID: PMC10385963 DOI: 10.3390/polym15143047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/26/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
This work examined the functional properties of three different treated fabrics, cotton, polyester, and cotton/polyester, with different polymeric materials (polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), or chitosan) in the presence and absence of two synthesized metal nanoparticles to impart and enhance fabric properties. Both metal nanoparticles (silver nanoparticle (AgNPs) and Zinc oxide nanoparticles (ZnONPs)) were synthesized using Psidium guajava Leaves and characterized using different techniques. The different treated fabrics were dyed with Reactive Dye (Syozol red k-3BS) and evaluated for their color strength, fastness properties, ultraviolet protection, antimicrobial activity, and mechanical properties. Results showed that treatment with polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), or chitosan enhances the functionality of all fabrics, with improved color strength, UV protection, and antimicrobial properties. Additionally, mechanical properties were slightly increased due to the creation of a thin film on the fabric surface. All dyed treated fabrics showed good ultraviolet protection and antimicrobial properties. The K/S of all treated textiles including nanoparticles and polymers was marginally greater than that of the treated materials without polymers. The UPF values demonstrate that the three investigated polymers and both metal nanoparticles enhance the fabrics' ability to block UV radiation and shield people's skin from its damaging effects. All treated textiles had UPF values that are higher than those of untreated textiles. Further research demonstrates that ZnONP-treated textiles exhibited greater UPF values than AgNP-treated textiles when the polymer component was present. Antibacterial examination demonstrated that treated materials had robust microbial resistance. This resistance is diminished by washing, but still prevents bacterial growth more effectively than untreated textiles.
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Affiliation(s)
- Eman Abd El-Aziz
- Textile Printing, Dyeing and Finishing Department, Faculty of Applied Arts, Benha University, Benha P.O. Box 15123, Egypt
| | - Menna Zayed
- Textile Printing, Dyeing and Finishing Department, Faculty of Applied Arts, Benha University, Benha P.O. Box 15123, Egypt
| | - Amina L Mohamed
- National Research Centre (Scopus Affiliation ID 60014618), Textile Research and Technology Institute, Pretreatment, and Finishing of Cellulose-Based Fibres Department, 33 El-Behouth St. (Former El-Tahrir Str.), Dokki, Giza P.O. Box 12622, Egypt
| | - Ahmed G Hassabo
- National Research Centre (Scopus Affiliation ID 60014618), Textile Research and Technology Institute, Pretreatment, and Finishing of Cellulose-Based Fibres Department, 33 El-Behouth St. (Former El-Tahrir Str.), Dokki, Giza P.O. Box 12622, Egypt
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Pereira GA, Chaves DSDA, Silva TME, Motta REDA, Silva ABRD, Patricio TCDC, Fernandes AJB, Coelho SDMDO, Ożarowski M, Cid YP, Karpiński TM. Antimicrobial Activity of Psidium guajava Aqueous Extract against Sensitive and Resistant Bacterial Strains. Microorganisms 2023; 11:1784. [PMID: 37512956 PMCID: PMC10383264 DOI: 10.3390/microorganisms11071784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/25/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
The inappropriate use of antimicrobials, along with environmental conditions, can lead to the emergence of resistant microorganisms. The use of phytopharmaceuticals and herbal medicines has a positive impact and represents a promising alternative. Psidium guajava extracts have been widely reported to have antimicrobial potential; however, studies reporting their activity against resistant bacterial strains are scarce. Because of the emerging resistance, the aim of this study was to analyze the antimicrobial capacity of the aqueous extract of guava leaves against wild-type and resistant bacterial strains. The aqueous extract obtained from the leaves of P. guajava was evaluated by HPLC for the content of total phenolics and tannins, antioxidant activity, and chemical composition. The antimicrobial activity of the extracts was analyzed by the disk diffusion and broth microdilution methods. The results of the chemical analysis of the extracts showed total phenolics content of 17.02 ± 6.87 mg/g of dry extract, total tannin content of 14.09 ± 1.20 mg of tannic acid equivalents/g of dry extract, and moderate antioxidant capacity with an EC50 value of 140 µg/mL. Flavonoids are the major compounds (rutin, hesperidin, and quercetin), followed by phenolic acids. Disk diffusion test results showed the presence of inhibition halos for Gram-positive bacteria (Staphylococcus aureus, sensitive and resistant; Staphylococcus pseudintermedius, sensitive and resistant; and Streptococcus spp., beta-hemolytic), while for Gram-negative bacteria (Escherichia coli, sensitive and resistant), there was no inhibition in the tested concentration range. The Minimal Inhibitory Concentration was 6.8 mg/mL for all Gram-positive strains evaluated. The present study demonstrated the antimicrobial activity of the aqueous extract of P. guajava against sensitive and resistant Gram-positive bacteria. The better antimicrobial activity found in the present study compared with previously reported activity should be highlighted and may be related to the higher concentration of total phenolics present in the tested extract. Moreover, the content of tannins found suggests a species with high quality that produces tannins. These new findings suggest an innovative profile regarding therapeutic resources that can be adopted to combat resistant microbial strains.
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Affiliation(s)
- Geraldo Augusto Pereira
- Pos Graduation Program of Veterinary Science, Veterinary Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Douglas Siqueira de Almeida Chaves
- Pharmaceutical Science Department, Health and Biological Science Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Taynara Monsores E Silva
- Pos Graduation Program of Veterinary Science, Veterinary Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Raissa Emidio de Araújo Motta
- Pharmaceutical Science Department, Health and Biological Science Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Adriana Barbosa Rocha da Silva
- Pharmaceutical Science Department, Health and Biological Science Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Thereza Cristina da Costa Patricio
- Pos Graduation Program of Veterinary Science, Veterinary Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Anna Julia Bessa Fernandes
- Pos Graduation Program of Veterinary Science, Veterinary Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Shana de Mattos de Oliveira Coelho
- Pos Graduation Program of Veterinary Science, Veterinary Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
- Veterinary Microbiology and Immunology Department, Veterinary Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Marcin Ożarowski
- Department of Biotechnology, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznań, Poland
| | - Yara Peluso Cid
- Pos Graduation Program of Veterinary Science, Veterinary Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
- Pharmaceutical Science Department, Health and Biological Science Institute, Federal Rural University of Rio de Janeiro, BR 465, km 7, Seropédica 23897-000, RJ, Brazil
| | - Tomasz M Karpiński
- Chair and Department of Medical Microbiology, Poznań University of Medical Sciences, Rokietnicka 10, 60-806 Poznań, Poland
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Hall AM, Baskiyar S, Heck KL, Hayden MD, Ren C, Nguyen C, Seals CD, Monu E, Calderón AI. Investigation of the chemical composition of antibacterial Psidium guajava extract and partitions against foodborne pathogens. Food Chem 2023; 403:134400. [DOI: 10.1016/j.foodchem.2022.134400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 11/28/2022]
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Jayasekara KG, Soysa P, Suresh TS, Goonasekara CL, Gunasekera KM. In Vitro Dengue Virus Inhibition by Aqueous Extracts of Aegle marmelos, Munronia pinnata and Psidium guajava. Altern Lab Anim 2023; 51:136-143. [PMID: 36793154 DOI: 10.1177/02611929231158243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Dengue is an arboviral (insect-transmitted) infection of global concern. Currently, there are still no specific dengue antiviral agents to treat the disease. Plant extracts have been used in traditional medicine for treating various viral infections - thus, in the present study, aqueous extracts of dried flowers of Aegle marmelos (AM), whole plant of Munronia pinnata (MP) and leaves of Psidium guajava (PG) were investigated for their potential capacity to inhibit dengue virus infection of Vero cells. The maximum non-toxic dose (MNTD) and the 50% cytotoxic concentration (CC50) were determined by using the MTT assay. A plaque reduction antiviral assay was carried out with dengue virus types 1 (DV1), 2 (DV2), 3 (DV3) and 4 (DV4), in order to calculate the half-maximum inhibitory concentration (IC50). AM extract inhibited all four virus serotypes tested; MP extract inhibited DV1, DV2 and DV4, but not DV3; PG extract inhibited DV1, DV2 and DV4, but not DV3. Thus, the results suggest that AM is a promising candidate for the pan-serotype inhibition of dengue viral activity.
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Affiliation(s)
- Kalani Gayathri Jayasekara
- Department of Medical Laboratory Science, Faculty of Allied Health Sciences, University of Ruhuna, Galle, Sri Lanka
| | - Preethi Soysa
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, 63735University of Colombo, Colombo, Sri Lanka
| | - Thusharie Sugandhika Suresh
- Department of Biochemistry, Faculty of Medical Sciences, 92953University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Charitha Lakshini Goonasekara
- Department of Pre-Clinical Sciences, Faculty of Medicine, 472733General Sir John Kotelawala Defence University, Rathmalana, Sri Lanka
| | - Kamani Mangalika Gunasekera
- Department of Microbiology, Faculty of Medical Sciences, 92953University of Sri Jayewardenepura, Nugegoda, Sri Lanka
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Althurwi HN, Ayman A. Salkini M, Soliman GA, Alharthy KM, Hamad A, Abdel-Kader MS. Anti-ulcerative colitis effect of Calligonum comosum L'Hér. using rat model: Chemical, pharmacological and histopathological evidences. Saudi Pharm J 2023; 31:473-481. [PMID: 37063443 PMCID: PMC10102550 DOI: 10.1016/j.jsps.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Calligonum comosum is a perennial shrub growing and widely used in traditional medicinal system in Saudi Arabia. The total phenolic content and in vitro antioxidant activity were compared between the water extract (WE) and methanol extract (ME). The protective potential against acetic acid (AA) induced ulcerative colitis (UC) was also evaluated in rats. The obtained results showed that the total phenolic content of the WE and ME were 8.378 ± 0.738 and 33.819 ± 0.488 µg/mL. The antioxidant properties of the two extracts were directly influenced by their total phenolic contents. The ME with higher phenolic contents and stronger antioxidant power was more effective than the WE in protection against AA-induced colitis. Phytochemical study of the ME led to the identification of three flavonoid derivatives: (-)-epi-catechin, quercetin-3-O-α-l-arabinofuranoside (Avicularin) and quercetin-3-O-β-d-glucuronide-6″-methyl ester by various spectroscopic methods. (-)-Epi-catechin was the major component while the other two compounds were obtained in minute quantities. The anti-ulcerative colitis effect of the ME can be explained by the presence of the antioxidant flavonoids since AA-induced colitis featured by imbalance between oxidant and antioxidant substances. Further support of such explanation was provided by HPLC quantification of (-)-epi-catechin in the ME and WE. The percentage in ME was higher than the WE but the difference was higher in term of Total Phenolic Content (TPC). These results support the traditional use of C. comosum as anti-ulcerative colitis.
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Affiliation(s)
- Hassan N. Althurwi
- Department of Pharmacology, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al kharj 11942, Saudi Arabia
| | - Mohammad Ayman A. Salkini
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al kharj 11942, Saudi Arabia
| | - Gamal A. Soliman
- Department of Pharmacology, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al kharj 11942, Saudi Arabia
- Department of Pharmacology, College of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Khalid M. Alharthy
- Department of Pharmacology, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al kharj 11942, Saudi Arabia
| | - Abubaker Hamad
- Pathophysiology, Department of Nursing, College of Health Sciences, Al-Rayan Colleges, Al-Madina Al-Munowara 41411, Saudi Arabia
- Department of Histopathology and Cytopathology, Faculty of Medical Laboratory Sciences, University of Gezira, Wad Madani, Sudan
| | - Maged S. Abdel-Kader
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al kharj 11942, Saudi Arabia
- Department of Pharmacognosy, College of Pharmacy, Alexandria University, Alexandria 21215, Egypt
- Corresponding author.
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Baskiyar S, Ren C, Heck KL, Hall AM, Gulfam M, Packer S, Seals CD, Calderón AI. Bioactive Natural Products Identification Using Automation of Molecular Networking Software. J Chem Inf Model 2022; 62:6378-6385. [PMID: 35947427 DOI: 10.1021/acs.jcim.2c00307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Secondary metabolites from natural sources are promising starting points for discovering and developing drug prototypes and new drugs, as many current treatments for numerous diseases are directly or indirectly related to such compounds. Recent advances in bioinformatics tools and molecular networking methods have made it possible to identify novel bioactive compounds. In this study, a workflow combining network-based methods for identifying bioactive compounds found in natural products was streamlined by innovating an automated bioinformatics software. The workflow relies on Global Natural Product Social Molecular Networking (GNPS), a web-based mass spectrometry ecosystem that aims to be an open-access knowledge base for community-wide organization and sharing of raw, processed, or annotated fragmentation mass spectrometry data. By combining computational tools including MZmine2, GNPS, and Cytoscape, the integrated dashboard quickly creates bioactive molecular networks with minimal user intervention and reduces the processing time of the original workflow by over 80%. This newly automated workflow quickens the process of discovering bioactive compounds from natural products. This study uses extracts from Psidium guajava leaves to demonstrate the application of our automated software.
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Affiliation(s)
- Swati Baskiyar
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 3306 Walker Building, Auburn, Alabama 36849, United States
| | - Chang Ren
- Department of Computer Science and Software Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Kabre L Heck
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 3306 Walker Building, Auburn, Alabama 36849, United States
| | - Audrey M Hall
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 3306 Walker Building, Auburn, Alabama 36849, United States
| | - Muhammad Gulfam
- Department of Computer Science and Software Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Sadaira Packer
- Department of Computer Science and Software Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Cheryl D Seals
- Department of Computer Science and Software Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Angela I Calderón
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, 3306 Walker Building, Auburn, Alabama 36849, United States
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Aly SH, Eldahshan OA, Al-Rashood ST, Binjubair FA, El Hassab MA, Eldehna WM, Dall’Acqua S, Zengin G. Chemical Constituents, Antioxidant, and Enzyme Inhibitory Activities Supported by In-Silico Study of n-Hexane Extract and Essential Oil of Guava Leaves. Molecules 2022; 27:molecules27248979. [PMID: 36558111 PMCID: PMC9781903 DOI: 10.3390/molecules27248979] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
Psidium guajava (Guava tree) is one of the most widely known species in the family Myrtaceae. The Guava tree has been reported for its potential antioxidant, anti-inflammatory, antimicrobial, and cytotoxic activities. In the current study, the chemical compositions of the n-hexane extract and the essential oil of P. guajava were investigated using the GC/MS analysis, along with an evaluation of their antioxidant potential, and an investigation into the enzyme inhibition of acetylcholinesterase (AChE), butyrylcholinesterase (BchE), tyrosinase, α-amylase, and α-glucosidase. Moreover, molecular docking of the major identified active sites of the target enzymes were investigated. The chemical characterization of the n-hexane extract and essential oil revealed that squalene (9.76%), α-tocopherol (8.53%), and γ-sitosterol (3.90%) are the major compounds in the n-hexane extract. In contrast, the major constituents of the essential oil are D-limonene (36.68%) and viridiflorol (9.68%). The n-hexane extract showed more antioxidant potential in the cupric reducing antioxidant capacity (CUPRAC), the ferric reducing power (FRAP), and the metal chelating ability (MCA) assays, equivalent to 70.80 ± 1.46 mg TE/g, 26.01 ± 0.97 mg TE/g, and 24.83 ± 0.35 mg EDTAE/g, respectively. In the phosphomolybdenum (PM) assay, the essential oil showed more antioxidant activity equivalent to 2.58 ± 0.14 mmol TE/g. The essential oil demonstrated a potent BChE and tyrosinase inhibitory ability at 6.85 ± 0.03 mg GALAE/g and 61.70 ± 3.21 mg KAE/g, respectively. The α-amylase, and α-glucosidase inhibitory activity of the n-hexane extract and the essential oil varied from 0.52 to 1.49 mmol ACAE/g. Additionally, the molecular docking study revealed that the major compounds achieved acceptable binding scores upon docking with the tested enzymes. Consequently, the P. guajava n-hexane extract and oil can be used as a promising candidate for the development of novel treatment strategies for oxidative stress, neurodegeneration, and diabetes mellitus diseases.
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Affiliation(s)
- Shaza H. Aly
- Department of Pharmacognosy, Faculty of Pharmacy, Badr University in Cairo (BUC), Cairo 11829, Egypt
| | - Omayma A. Eldahshan
- Pharmacognosy Department, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
- Center for Drug Discovery Research and Development, Ain Shams University, Cairo 11566, Egypt
- Correspondence: (O.A.E.); (G.Z.)
| | - Sara T. Al-Rashood
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Faizah A. Binjubair
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mahmoud A. El Hassab
- Department of Medicinal Chemistry, Faculty of Pharmacy, King Salman International University (KSIU), South Sinai 46612, Egypt
| | - Wagdy M. Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
- School of Biotechnology, Badr University in Cairo, Badr City, Cairo 11829, Egypt
| | - Stefano Dall’Acqua
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Konya 42130, Turkey
- Correspondence: (O.A.E.); (G.Z.)
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11
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Ghaderi F, Ebrahimi E, Sari Aslani F, Koohi-Hosseinabadi O, Koohpeyma F, Irajie C, Tanideh N, Iraji A. The effect of hydroalcoholic extract of Psidium guajava L. on experimentally induced oral mucosal wound in rat. BMC Complement Med Ther 2022; 22:201. [PMID: 35906612 PMCID: PMC9338486 DOI: 10.1186/s12906-022-03655-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 06/21/2022] [Indexed: 11/22/2022] Open
Abstract
Background The aim of this study was to evaluate the biological effects of hydroalcoholic extract of Psidium guajava L leaves and phenytoin as a standard agent on the induced oral mucosal wound. Methods Hundred seventy Sprague Dawley rats were grouped in 5 clusters randomly. Oral mucosal wounds were induced in all rats except for the control group. Phenytoin and guajava leaf extract were used as a mouthwash. Twelve rats from the 5 groups were euthanized on day 7th and 10th, and 10 rats from each group were sacrificed on the 14th day. Interleukin-6 and total antioxidant capacity were determined in the serum. The tissues were evaluated for pathological and stereological assessments. Phytochemical analyses were performed on the hydroalcoholic extract of Psidium guajava L to determine the antioxidant potency. Results Total phenolic content test and DPPH analysis demonstrated the high potential of antioxidant capacity of Psidium guajava L. Decreasing IL-6 and increasing TAC were seen in the guajava hydroalcoholic extract and phenytoin groups. The difference of IL-6 between the wound treated guajava group and the wounded group was significant. The wound treated guajava group and wound treated phenytoin group on the 14th day increased the number of fibroblast cells and volume density of sub-mucosae effectively to the same thickness to be considered as a healed sub-mucosae layer. The volume density of the epithelium changes showed statistically significant different responses based on gender. Conclusion In conclusion, hydroalcoholic extract of Psidium guajava L leaves might exert theraputic effects on oral mucositis. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03655-5.
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Braga DCDA, Gomes PM, Batista MAC, de Souza JA, Bastos JCSA, Rodrigues-das-Dôres RG, Alzamora AC, de Souza GHB, de Moura SAL, Talvani A, Antunes VR, Cardoso LM. Effects of Psidium guajava L. leaves extract on blood pressure control and IL-10 production in salt-dependent hypertensive rats. Biomed Pharmacother 2022; 155:113796. [DOI: 10.1016/j.biopha.2022.113796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/19/2022] [Accepted: 10/02/2022] [Indexed: 11/02/2022] Open
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Effects of Reaction Temperature on the Antibacterial Activity of Silver Nanoparticles Synthesized from<i> Psidium guajava</i> Leaf Extract. JOURNAL OF BIOMIMETICS BIOMATERIALS AND BIOMEDICAL ENGINEERING 2022. [DOI: 10.4028/p-d7enun] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver nanoparticles have been well known to possess efficient antibacterial properties. Many studies conducted on silver nanoparticles synthesized in different routes, from physical methods to chemical techniques to biological synthesis. In this study, the biological route was utilized using Psidium guajava leaves extract mixed with silver nitrate to synthesize silver nanoparticles. In addition, syntheses were done at varying temperatures to investigate its effect over antibacterial properties of the silver nanoparticles obtained. Results showed blueshifting of UV-Vis peaks suggesting decrease in particle size as synthesis temperature increases. FTIR also showed that the synthesized nanoparticles may have been capped by phenolic compounds from the biomolecules in guava leaves. Finally, antibacterial tests via Disc Diffusion Test suggested that the silver nanoparticles biologically synthesized at higher temperatures are more effective bactericides than those synthesized at lower temperatures as indicated by the measured zones of inhibition.
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Amadike Ugbogu E, Emmanuel O, Ebubechi Uche M, Dike Dike E, Chukwuebuka Okoro B, Ibe C, Chibueze Ude V, Nwabu Ekweogu C, Chinyere Ugbogu O. The ethnobotanical, phytochemistry and pharmacological activities of Psidium guajava L. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103759] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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15
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Abuga I, Sulaiman SF, Abdul Wahab R, Ooi KL, Abdull Rasad MSB. Phytochemical constituents and antibacterial activities of 45 Malay traditional medicinal plants. J Herb Med 2022. [DOI: 10.1016/j.hermed.2021.100496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Huynh TKD, Nguyen LAD, Nguyen TNH, Nguyen Q, Tomoaki H, Tran MP. Effects of green tea (
Camellia sinensis
) and guava (
Psidium guajava
) extracts on the quality of snakehead (
Channa striata
) fillets during ice storage. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Thi Kim Duyen Huynh
- Department of Seafood Science and Technology College of Aquaculture and Fisheries Can Tho University Can Tho Vietnam
| | - Le Anh Dao Nguyen
- Department of Seafood Science and Technology College of Aquaculture and Fisheries Can Tho University Can Tho Vietnam
| | - Thị Nhu Ha Nguyen
- Department of Seafood Science and Technology College of Aquaculture and Fisheries Can Tho University Can Tho Vietnam
| | - Quoc Thinh Nguyen
- Department of Seafood Science and Technology College of Aquaculture and Fisheries Can Tho University Can Tho Vietnam
| | - Hagiwara Tomoaki
- Department of Food Science and Technology Tokyo University of Marine Science and Technology Tokyo Japan
| | - Minh Phu Tran
- Department of Seafood Science and Technology College of Aquaculture and Fisheries Can Tho University Can Tho Vietnam
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Kumadoh D, Archer MA, Yeboah GN, Kyene MO, Boakye-Yiadom M, Adi-Dako O, Osei-Asare C, Adase E, Appiah AA, Mintah SO. A review on anti-peptic ulcer activities of medicinal plants used in the formulation of Enterica, Dyspepsia and NPK 500 capsules. Heliyon 2021; 7:e08465. [PMID: 34917789 PMCID: PMC8645450 DOI: 10.1016/j.heliyon.2021.e08465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/10/2021] [Accepted: 11/19/2021] [Indexed: 11/03/2022] Open
Abstract
Peptic ulcer disease affects many people globally. With the increasing resistance to some orthodox antibiotics such as Clarithromycin and Metronidazole, it is important that new acceptable, safer and effective therapies are developed to manage this disease. Various herbal medicines have been used traditionally for the remedy of peptic ulcer disease (PUD), however scientific information with regards to their anti-peptic ulcer both in-vivo and in-vitro as well as clinical studies supporting their use is still inadequate. The Centre for Plant Medicine Research, (CPMR) Mampong-Akuapem, Ghana manufactures three herbal Products namely Enterica, Dyspepsia and NPK 500 capsules which are currently used for the remedy of PUD as a triple therapy at its out-patient clinic with promising effects. The aim of this review is to gather information from literature on the anti-ulcer properties, pharmacological, phytochemical constituents and related activities of herbal plants used at the CPMR for formulation of the triple herbal therapy. This review may, provide some scientific bases for the use of Enterica, Dyspepsia and NPK 500 capsules in the management of Peptic ulcer at the CPMR out-patient clinic. METHODS Organization for the review involved the on and/or offline search for information from available literature using electronic data and scientific research information resources such as PubMed, Science Direct and Google scholar. RESULTS In this review, fifteen ethno-medicinal plants used for the formulation of Enterica, Dyspepsia and NPK capsules have been discussed, presenting the description of the plants, composition and pharmacological activity. INTERPRETATION Tables with the summary of reviewed medicinal plants with their anti-ulcer models and inference on possible mechanisms of action were drawn up. The mechanism(s) of action of individual plants and products (Enterica, Dyspepsia and NPK 500 capsules) must be further investigated and established experimentally in-vitro in addition to in-vivo pharmacological and clinical activity studies to confirm their use in the remedy of PUD.
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Affiliation(s)
- Doris Kumadoh
- Department of Pharmaceutics, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
- Department of Production, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
| | - Mary-Ann Archer
- Department of Pharmaceutics, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
| | - Genevieve N. Yeboah
- Department of Pharmaceutics, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
| | - Michael O. Kyene
- Department of Pharmaceutics, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
| | - Mavis Boakye-Yiadom
- Department of Clinical Research, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
| | - Ofosua Adi-Dako
- Department of Pharmaceutics and Microbiology, School of Pharmacy, University of Ghana, Legon, Accra, Ghana
| | - Christina Osei-Asare
- Department of Pharmaceutics and Microbiology, Central University College, Accra, Ghana
| | - Emmanuel Adase
- Department of Production, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
| | - Alfred A. Appiah
- Department of Phytochemistry, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
| | - Susana O. Mintah
- Department of Microbiology, Centre for Plant Medicine Research, Mampong-Akuapem, Ghana
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Jamieson S, Wallace CE, Das N, Bhattacharyya P, Bishayee A. Guava ( Psidium guajava L.): a glorious plant with cancer preventive and therapeutic potential. Crit Rev Food Sci Nutr 2021; 63:192-223. [PMID: 34289769 DOI: 10.1080/10408398.2021.1945531] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Guava (Psidium guajava L.) tree (Myrtaceae family) bears fruit rich in vitamins, fiber, and other nutrients. While native to Latin America, guava is grown in many tropical and subtropical regions across the globe where it has long been used in traditional medicine to treat a myriad of ailments. Guava has been shown to exhibit a number of biological and pharmacological activities, such as antioxidant, anti-inflammatory, immunomodulatory, antimicrobial, antidiabetic, and anticancer properties. Several parts of the plant, including the leaves, fruits, seeds, peels, pulp, bark, and oil, produce phytochemicals with medicinal properties. Emerging research has found that guava bioactive phytochemicals exert antitumorigenic effects against various human malignancies through multiple mechanisms. While there are numerous individual studies that document the anticancer effects of guava constituents, an up-to-date, comprehensive, and critical review of available research data has not been performed. Therefore, the purpose of this review is to present a complete analysis of the cancer preventive and anticancer therapeutic potential of guava-derived products and guava constituents, with a focus on the cellular and molecular mechanisms of action. The bioavailability, pharmacokinetics, and toxicity of guava as well as limitations, challenges, and future directions of research have also been discussed.
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Affiliation(s)
- Sarah Jamieson
- Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Carly E Wallace
- Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Niranjan Das
- Department of Chemistry, Iswar Chandra Vidyasagar College, Belonia, Tripura, India
| | - Piyali Bhattacharyya
- Department of Nutrition, School of Health Sciences, Ana G. Méndez University, Gurabo, Puerto Rico, USA
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
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Asghar A, Tan YC, Zahoor M, Zainal Abidin SA, Yow YY, Khan E, Lahiri C. A scaffolded approach to unearth potential antibacterial components from epicarp of Malaysian Nephelium lappaceum L. Sci Rep 2021; 11:13859. [PMID: 34226594 PMCID: PMC8257635 DOI: 10.1038/s41598-021-92622-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 06/10/2021] [Indexed: 11/09/2022] Open
Abstract
The emergence and spread of antimicrobial resistance have been of serious concern to human health and the management of bacterial infectious diseases. Effective treatment of these diseases requires the development of novel therapeutics, preferably free of side effects. In this regard, natural products are frequently conceived to be potential alternative sources for novel antibacterial compounds. Herein, we have evaluated the antibacterial activity of the epicarp extracts of the Malaysian cultivar of yellow rambutan fruit (Nephelium lappaceum L.) against six pathogens namely, Bacillus subtilis, methicillin-resistant Staphylococcus aureus (MRSA), Streptococcus pyogenes, Pseudomonas aeruginosa, Klebsiella pneumoniae and Salmonella enterica. Among a series of solvent extracts, fractions of ethyl acetate and acetone have revealed significant activity towards all tested strains. Chemical profiling of these fractions, via HPLC, LC-MS and GC-MS, has generated a library of potentially bioactive compounds. Downstream virtual screening, pharmacological prediction, and receptor-ligand molecular dynamics simulation have eventually unveiled novel potential antibacterial compounds, which can be extracted for medicinal use. We report compounds like catechin, eplerenone and oritin-4-beta-ol to be computationally inhibiting the ATP-binding domain of the chaperone, DnaK of P. aeruginosa and MRSA. Thus, our work follows the objective to propose new antimicrobials capable of perforating the barrier of resistance posed by both the gram positives and the negatives.
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Affiliation(s)
- Ali Asghar
- Department of Biological Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Yong Chiang Tan
- Department of Biological Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Mohammad Zahoor
- Department of Biochemistry, University of Malakand, Chakdara, Pakistan
| | | | - Yoon-Yen Yow
- Department of Biological Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Ezzat Khan
- Department of Chemistry, University of Bahrain, Sakhir, Bahrain
| | - Chandrajit Lahiri
- Department of Biological Sciences, Sunway University, Petaling Jaya, Malaysia.
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20
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Javadinia SS, Abbaszadeh-Goudarzi K, Mahdian D, Hosseini A, Ghalenovi M, Javan R. A review of the protective effects of quercetin-rich natural compounds for treating ischemia-reperfusion injury. Biotech Histochem 2021; 97:237-246. [PMID: 34157912 DOI: 10.1080/10520295.2021.1937701] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Ischemia-reperfusion (IR) injury causes dysfunction of tissues and organs, and oxidative stress plays an important role. During IR, reactive oxygen species (ROS) are increased. Antioxidants are used to decrease ROS associated with IR. We review the protective effects of quercetin-rich natural antioxidants against IR. We searched PubMed, ScienceDirect, Scopus and Cochrane databases using the keywords: ischemic reperfusion, quercetin, antioxidant and herbal medicine. The effects of quercetin during IR have been reported for animal models in vitro and in vivo. Quercetin-rich plants including Abelmoschus esculentus, coriander, Hypericum perforatum, onion, Psidium guajava, buckwheat and Rosa laevigata Michx have been used to reduce oxidative stress damage to various organs during IR.
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Affiliation(s)
- Sara Sadat Javadinia
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Kazem Abbaszadeh-Goudarzi
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran.,Leishmaniasis Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Davood Mahdian
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran.,Department of Pharmacology, School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Azar Hosseini
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mina Ghalenovi
- Faculty of Midwifery, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Roghayeh Javan
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
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21
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Gaur PK. Nanosuspension of flavonoid-rich fraction from Psidium guajava Linn for improved type 2-diabetes potential. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Al-Yousef HM, Alqahtani AS, Ghani AS, El-Toumy SA, El-Dougdoug WI, Hassan WH, Hassan HM. Nephroprotective, cytotoxic and antioxidant activities of Euphorbia paralias. Saudi J Biol Sci 2021; 28:785-792. [PMID: 33424368 PMCID: PMC7783784 DOI: 10.1016/j.sjbs.2020.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/28/2020] [Accepted: 11/01/2020] [Indexed: 11/18/2022] Open
Abstract
Objective To investigate the effect of the ethyl acetate fraction of the aerial parts of E. paralias L. F. Euphorbiaceae on nephroprotective, cytotoxic, and antioxidant. Methods different spectroscopic and spectrophotometric methods were applied to identify phytoconstituents. The nephroprotective potential of E. paralias ethyl acetate fraction (Ep EtOAc) was evaluated in male rats with thioacetamide-induced kidney injury, as wll as cytotoxic activity was evaluated using a viability assay, and the antioxidant activity was evaluated using the DPPH method. Results: quantitative estimation of total phenolics and flavonoids of E. paralias was performed using unique spectrophotometric methods. The polyphenolic compounds gallic acid (1), ellagic acid (2), kaempferol-3-O-(6″-O-galloyl-β-D-glucopyranoside) (3), quercetin-3-O-β-D-glucopyranoside (4) and quercetin-3-O-β-D-arabinoside (5) were isolated from the ethyl acetate fraction of the aerial parts of E. paralias. The thioacetamide administration resulted in marked nephrotoxicity, but pretreatment with Ep EtOAc significantly attenuated the nephrotoxicity through alteration of kidney biomarkers, thereby improving the redox status of the tissue and restoring serum biochemical parameters nearly to normal levels. This study revealed a significant cytotoxic and strong antioxidant effect. Conclusion: we conclude that the Ep EtOAc may be used in the future as nephroprotective, cytotoxic, and antioxidant agent derived from a natural source.
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Affiliation(s)
- Hanan M. Al-Yousef
- Pharmacognosy Department, College of Pharmacy, King Saud University, POBox 2457, Riyadh 11451, Saudi Arabia
- Corresponding author.
| | - Ali S. Alqahtani
- Pharmacognosy Department, College of Pharmacy, King Saud University, POBox 2457, Riyadh 11451, Saudi Arabia
| | - Afaf S.A. Ghani
- Department of Pharmacognosy Faculty of Pharmacy, Zagazig University, 44519 Zagazig, Egypt
| | - Sayed A. El-Toumy
- Chemistry of Tannins Department, National Research Center –Dokki- Cairo, 12622, Egypt
| | | | - Wafaa H.B. Hassan
- Department of Pharmacognosy Faculty of Pharmacy, Zagazig University, 44519 Zagazig, Egypt
| | - Hanaa M. Hassan
- Pharmacy Department Benha Educational Hospital, 13518 Benha, Egypt
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Comparative Chemical Profiles of the Essential Oils from Different Varieties of Psidium guajava L. Molecules 2020; 26:molecules26010119. [PMID: 33383905 PMCID: PMC7795193 DOI: 10.3390/molecules26010119] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/24/2020] [Accepted: 12/25/2020] [Indexed: 02/06/2023] Open
Abstract
Guava (Psidium guajava) leaves are commonly used in the treatment of diseases. They are considered a waste product resulting from guava cultivation. The leaves are very rich in essential oils (EOs) and volatiles. This work represents the detailed comparative chemical profiles of EOs derived from the leaves of six guava varieties cultivated in Egypt, including Red Malaysian (RM), El-Qanater (EQ), White Indian (WI), Early (E), El-Sabahya El-Gedida (ESEG), and Red Indian (RI), cultivated on the same farm in Egypt. The EOs from the leaves of guava varieties were extracted by hydro-distillation and analyzed with GC-MS. The EOs were categorized in a holistic manner using chemometric tools. The hydro-distillation of the samples yielded 0.11-0.48% of the EO (v/w). The GC-MS analysis of the extracted EOs showed the presence of 38 identified compounds from the six varieties. The sesquiterpene compounds were recorded as main compounds of E, EQ, ESEG, RI, and WI varieties, while the RM variety attained the highest content of monoterpenes (56.87%). The sesquiterpenes, β-caryophyllene (11.21-43.20%), and globulol (76.17-26.42%) were detected as the major compounds of all studied guava varieties, while trans-nerolidol (0.53-10.14) was reported as a plentiful compound in all of the varieties except for the RM variety. A high concentration of D-limonene was detected in the EOs of the RM (33.96%), WI (27.04%), and ESEG (9.10%) varieties. These major compounds were consistent with those reported for other genotypes from different countries. Overall, the EOs' composition and the chemometric analysis revealed substantial variations among the studied varieties that might be ascribed to genetic variability, considering the stability of the cultivation and climate conditions. Therefore, this chemical polymorphism of the studied varieties supports that these varieties could be considered as genotypes of P. guajava. It is worth mentioning here that the EOs, derived from leaves considered to be agricultural waste, of the studied varieties showed that they are rich in biologically active compounds, particularly β-caryophyllene, trans-nerolidol, globulol, and D-limonene. These could be considered as added value for pharmacological and industrial applications. Further study is recommended to confirm the chemical variations of the studied varieties at a molecular level, as well as their possible medicinal and industrial uses.
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dos Santos RM, Costa G, Cerávolo IP, Dias-Souza MV. Antibiofilm potential of Psidium guajava and Passiflora edulis pulp extracts against Staphylococcus aureus, cytotoxicity, and interference on the activity of antimicrobial drugs. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2020. [DOI: 10.1186/s43094-020-00056-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Pathogenic strains of Staphylococcus aureus can cause several diseases including septicemia and endocarditis, in spite of being a commensal species of the human microbiota. The current drug resistance of S. aureus raises the need for new antimicrobials, and natural products represent a feasible source for prospection of such compounds, due to features including the diversity of structures and mechanisms of action. Here, we provide evidence of the antimicrobial activity of methanolic of Psidium guajava and Passiflora edulis pulps against planktonic cells and biofilms of clinical isolates of S. aureus.
Results
The extracts were effective against the strains in concentrations up to 7.81 and 250 μg/mL for planktonic cells and biofilms, respectively. Antagonistic interactions of the extracts to antimicrobial drugs were observed. The pulps caused no cytotoxic effects on BGM cells. GC-MS analysis found relevant molecules, and UPLC analysis suggested the presence of flavonoids. To the best of our knowledge, this is the first antibiofilm evidence of such extracts.
Conclusion
The extracts seem to be safe and effective enough for more studies aiming at exploring isolated antimicrobial molecules using in vivo models for the treatment of staphylococcal diseases.
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Nephroprotective and antioxidant activities of ethyl acetate fraction of Euphorbia geniculata Ortega family Euphorbiaceae. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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26
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Mohie El-Dien RT, Maher SA, Abdelmohsen UR, AboulMagd AM, Fouad MA, Kamel MS. Antiulcer secondary metabolites from Elaeocarpus grandis, family Elaeocarpaceae, supported by in silico studies. RSC Adv 2020; 10:34788-34799. [PMID: 35514372 PMCID: PMC9056857 DOI: 10.1039/d0ra06104b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/03/2020] [Indexed: 11/23/2022] Open
Abstract
Elaeocarpus grandis has a very potent analgesic effect, especially to a δ-opioid receptor, but its antiulcer activity has not yet been validated. Therefore, the present study was carried out to evaluate the antiulcer potential of the total methanolic extract and its derived fractions of the aerial parts of the plant using an indomethacin-induced gastric ulcer method. One new compound, grandisine H (1), and five known compounds, P-methoxy benzaldehyde, methyl gallate, kaempferol, quercetin and heterophyllin A (2–6), were isolated from the ethyl acetate fraction, which was the most potent one with an ulcer index value of 5 ± 1.95 (mm) ** (*P < 0.05, **P < 0.01) and a preventive index of 92.9%, following a bioassay-guided fractionation. The isolated compounds were subjected to a molecular docking study in an attempt to explain their significant antiulcer potential, and the results revealed that kaempferol and quercetin bind to the active site of the M3 receptor with a strong binding affinity via strong hydrogen bonds of −6.081 kcal mol−1 and −6.013 kcal mol−1, respectively. Also, quercetin and heterophyllin A showed a binding affinity with the gastric proton pump receptor and a strong hydrogen bond interaction with the amino acid active sites in the case of an H2-modeled receptor. These results clarify the effectiveness and importance of the ethyl acetate fraction as a natural anti-ulcer remedy. Elaeocarpus grandis has a very potent analgesic effect, especially to a δ-opioid receptor, but its antiulcer activity has not yet been validated.![]()
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Affiliation(s)
- Radwa Taher Mohie El-Dien
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt
| | - Sherif A Maher
- Department of Biochemistry, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt.,Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt
| | - Asmaa M AboulMagd
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Nahda University 62513 Beni Suef Egypt
| | - Mostafa Ahmed Fouad
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt
| | - Mohamed Salah Kamel
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt.,Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt
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Nhu TQ, Dam NP, Bich Hang BT, Bach LT, Thanh Huong DT, Buu Hue BT, Scippo ML, Phuong NT, Quetin-Leclercq J, Kestemont P. Immunomodulatory potential of extracts, fractions and pure compounds from Phyllanthus amarus and Psidium guajava on striped catfish (Pangasianodon hypophthalmus) head kidney leukocytes. FISH & SHELLFISH IMMUNOLOGY 2020; 104:289-303. [PMID: 32544554 DOI: 10.1016/j.fsi.2020.05.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/14/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to identify major phytochemical constituents, as well as compare the immunomodulatory effects of Psidium guajava L. and Phyllanthus amarus Schun and Thonn crude ethanol extracts and their fractions on striped catfish (Pangasianodon hypophthalmus) head kidney leukocytes (HKLs). Moreover, pure constituents were also investigated for their effects on those cells: hypophyllanthin, identified as a major constituent of P. amarus crude extracts and its hexane fraction; corosolic acid, ursolic acid, and oleanolic acid, identified in P. guajava crude extract, ethyl acetate and dichloromethane fractions; with other terpenic derivatives, as well as guajaverin and avicularin, identified with other flavonoids by LC-UV-MS in the crude P. guajava extract and its ethyl acetate fraction. Cell viability, respiratory burst assay (RBA), nitric oxide synthase (NOS) and lysozyme activity in HKLs were analyzed after 24 h stimulation with each extract (10, 20 and 40 μg/mL) or pure compound (7.5, 15 and 30 μM). Our results show that the hexane fraction of both plant extracts inhibited the viability of HKLs, while several other fractions enhanced the cell viability. All P. guajava fractions at all or some concentration considerably enhanced the RBA production in HKLs. Similarly, NOS production was also significantly increased by some or all concentrations of P. guajava dichloromethane and ethyl acetate fractions. However, the NOS production was dose-dependently inhibited in HKLs treated with Pa ethyl acetate and both plants aqueous fractions at 10 or 10 and 40 μg/mL respectively. The lysozyme activity in cells treated with P. guajava crude extracts and all its organic solvent fractions were stronger than those in P. amarus treatments. Pure compounds including corosolic acid, guajaverin, ursolic acid, hypophyllanthin inhibited the HKLs viability according to concentration and type of compound. All pure compounds except avicularin significantly stimulated, at certain or all concentrations, the RBA production and/or the lysozyme activity in HKLs. The NOS production was significantly reduced in HKLs treated with oleanolic acid (30 μM) and hypophyllanthin (7.5 μM) while its level was increased by hypophyllanthin at 30 μM. These results highlighted that the crude ethanol extracts of P. guajava and P. amarus, their fractions and some of their pure components at certain concentrations can potentially act as immunomodulators, and could be considered as valuable candidates in fishery sciences.
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Affiliation(s)
- Truong Quynh Nhu
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Rue de Bruxelles 61, B-5000, Namur, Belgium; College of Aquaculture and Fisheries, Cantho University, Campus II, Cantho City, Viet Nam.
| | - Nguyen Phuc Dam
- Department of Chemistry Education, School of Education, Can Tho University, Can Tho City, Viet Nam; Louvain Drug Research Institute (LDRI) Pharmacognosy Research Group, Université Catholique de Louvain, B-1200, Brussels, Belgium.
| | - Bui Thi Bich Hang
- College of Aquaculture and Fisheries, Cantho University, Campus II, Cantho City, Viet Nam.
| | - Le Thi Bach
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, Viet Nam.
| | - Do Thi Thanh Huong
- College of Aquaculture and Fisheries, Cantho University, Campus II, Cantho City, Viet Nam.
| | - Bui Thi Buu Hue
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho City, Viet Nam.
| | - Marie-Louise Scippo
- Department of Food Sciences, Laboratory of Food Analysis, Faculty of Veterinary Medicine, Fundamental and Applied Research for Animals & Health (FARAH), Veterinary Public Health, University of Liège, Bât. B43bis, 10 Avenue de Cureghem, Sart-Tilman, Liège, Belgium.
| | - Nguyen Thanh Phuong
- College of Aquaculture and Fisheries, Cantho University, Campus II, Cantho City, Viet Nam.
| | - Joëlle Quetin-Leclercq
- Louvain Drug Research Institute (LDRI) Pharmacognosy Research Group, Université Catholique de Louvain, B-1200, Brussels, Belgium.
| | - Patrick Kestemont
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Rue de Bruxelles 61, B-5000, Namur, Belgium.
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Arai MA, Morita K, Kawano H, Makita Y, Hashimoto M, Suganami A, Tamura Y, Sadhu SK, Ahmed F, Ishibashi M. Target protein-oriented isolation of Hes1 dimer inhibitors using protein based methods. Sci Rep 2020; 10:1381. [PMID: 31992824 PMCID: PMC6987128 DOI: 10.1038/s41598-020-58451-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 01/15/2020] [Indexed: 12/14/2022] Open
Abstract
Natural products isolation using protein based methods is an attractive for obtaining bioactive compounds. To discover neural stem cell (NSC) differentiation activators, we isolated eight inhibitors of Hes1 dimer formation from Psidium guajava using the Hes1-Hes1 interaction fluorescent plate assay and one inhibitor from Terminalia chebula using the Hes1-immobilized beads method. Of the isolated compounds, gallic acid (8) and 4-O-(4”-O-galloyl-α-L-rhamnopyranosyl)ellagic acid (11) showed potent Hes1 dimer formation inhibitory activity, with IC50 values of 10.3 and 2.53 μM, respectively. Compound 11 accelerated the differentiation activity of C17.2 NSC cells dose dependently, increasing the number of neurons with a 125% increase (5 μM) compared to the control.
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Affiliation(s)
- Midori A Arai
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan.
| | - Kaori Morita
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Haruka Kawano
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Yuna Makita
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Manami Hashimoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Akiko Suganami
- Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Yutaka Tamura
- Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Samir K Sadhu
- Pharmacy Discipline, Khulna University, Khulna, 9208, Bangladesh
| | - Firoj Ahmed
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Masami Ishibashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan.
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St-Pierre A, Blondeau D, Bourdeau N, Bley J, Desgagné-Penix I. Chemical Composition of Black Spruce ( Picea mariana) Bark Extracts and Their Potential as Natural Disinfectant. Ind Biotechnol (New Rochelle N Y) 2019. [DOI: 10.1089/ind.2019.0007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Annabelle St-Pierre
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| | - Dorian Blondeau
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| | - Nathalie Bourdeau
- Innofibre, Trois-Rivières, Canada
- Groupe de recherché en Biologie Végétale, Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| | | | - Isabel Desgagné-Penix
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, Canada
- Groupe de recherché en Biologie Végétale, Université du Québec à Trois-Rivières, Trois-Rivières, Canada
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Dat HN, Tien LHT, Dung NTM, Van Kieu N, Huy DT, Tuyet NTA, Phung NKP. Chemical constituents of Ficus consociata
Blume (Moraceae). VIETNAM JOURNAL OF CHEMISTRY 2019. [DOI: 10.1002/vjch.201960022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huynh Ngoc Dat
- University of Science; Vietnam National University - Ho Chi Minh City; Viet Nam
| | | | - Nguyen Thi My Dung
- University of Science; Vietnam National University - Ho Chi Minh City; Viet Nam
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Zhang W, Wang J, Chen Y, Zheng H, Xie B, Sun Z. Flavonoid compounds and antibacterial mechanisms of different parts of white guava ( Psidium guajava L. cv. Pearl). Nat Prod Res 2018; 34:1621-1625. [PMID: 30334458 DOI: 10.1080/14786419.2018.1522313] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The flavonoid compositions, extracted from leaves, peel and flesh of white guava (Psidium guajava L. cv. Pearl), were identified and quantified by UPLC-ESI-QTOF-MS, HPLC-ESI-MS/MS and HPLC. The main components of three extracts all were quercetin-glycosides, but the proportion and content of quercetin-hexoside and quercetin-pentoside in each extract were different. Based on the measurements of MIC, MBC value and time killing curve, it emerged that 3 flavonoid extracts of white guava had good antibacterial effects on four pathogenic bacteria. White guava leaves flavonoids (WGLF) concentrations of 5.00 mg/mL and 0.625 mg/mL could change the micro-morphology of Escherichia coli and Staphylococcus aureus. It suggested that the antibacterial mechanism of WGLF on gram-positive and gram-negative bacteria was to destroy the structure and function of the cell membrane. It is indicated that the flavonoid extracts from white guava is a potential natural antimicrobial agent.
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Affiliation(s)
- Wanjun Zhang
- Natural Product Laboratory Department of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Jingyi Wang
- Natural Product Laboratory Department of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Yashu Chen
- Natural Product Laboratory Department of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Hongbin Zheng
- Natural Product Laboratory Department of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Bijun Xie
- Natural Product Laboratory Department of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Zhida Sun
- Natural Product Laboratory Department of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
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Abdullahi M, Olotu FA, Soliman ME. Solving the riddle: Unraveling the mechanisms of blocking the binding of leukotoxin by therapeutic antagonists in periodontal diseases. J Cell Biochem 2018; 119:9364-9379. [PMID: 30129224 DOI: 10.1002/jcb.27254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/21/2018] [Indexed: 12/12/2022]
Abstract
Aggregatibacter actinomycetemcomitans is a Gram-negative bacteria that has gained wide recognition for its causative role in the development of various immune diseases, which includes localized aggressive periodontitis. Its ability to evade host defense mechanisms is mediated by the secretion of leukotoxin (LtxA), which induces death of white blood cells (leukocytes) by specific binding to their surface-expressed leukocyte function-associated receptor (LFA-1) in its active state. Therapeutic compounds that interfere with this pathogenic process and abrogate A. actinomycetemcomitans virulence have been reported in literature. These include doxycycline, and more recently phytochemical compounds such as hamamelitanin, resveratrol, naringin, and quercetin. However, the question remains how do they work? Therefore, with the aid of computational tools, we explore the molecular mechanisms by which they possibly elicit their therapeutic functions. Molecular mechanics Poisson/Boltzmann surface area analyses revealed that these compounds bind favorably to active LFA-1 with high affinity and considerable stability, indicative of their ability to occupy the LtxA binding site (LBS) and prevent LtxA binding. The conformational transition of open LFA-1 to its closed state further describe the mechanistic activity of these compounds. In addition to notable reductions in structural mobility and flexibility, the burial of surface-exposed interactive side chains at the LBS was observed, an occurrence that could alter the complementary binding of LtxA. It is also important to mention that these occurrences were induced more prominently by the phytochemicals. We believe that these findings will enhance the scope of drug design and discovery for potent LtxA antagonists with improved activities and therapeutic efficacies in the treatment of virulent A. actinomycetemcomitans diseases.
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Affiliation(s)
- Maryam Abdullahi
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Fisayo A Olotu
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Mahmoud E Soliman
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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Malik K, Ahmad M, Bussmann RW, Tariq A, Ullah R, Alqahtani AS, Shahat AA, Rashid N, Zafar M, Sultana S, Shah SN. Ethnobotany of Anti-hypertensive Plants Used in Northern Pakistan. Front Pharmacol 2018; 9:789. [PMID: 30087613 PMCID: PMC6066661 DOI: 10.3389/fphar.2018.00789] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 06/28/2018] [Indexed: 12/12/2022] Open
Abstract
Hypertension is one of the most important factors responsible for cardiovascular ailments worldwide. It has been observed that herbal products and alternative herbal therapies played a significant role in decreasing hypertension. The aim of the current study is to provide significant ethnopharmacological information, both qualitative and quantitative on medicinal plants related to hypertension from Northern Pakistan. The documented data were quantitatively analyzed for the first time in this area. A total of 250 participants were interviewed through semi-structured discussions and questionnaires. Quantitative indices including FC (Frequency citation), FIV (Family importance value), RFC (Relative frequency of citation) and DCI (Disease Consensus index) were calculated. A total of 192 plant species, belonging to 77 families were reported to be used in treatment of hypertension in Northern Pakistan. The most dominant life form reported was herbs (54%), with decoction (72 reports) and leaves (55.1%) were commonly utilized plant part. Highest FIV was recorded in Lamiaceae (327 FIV). RFC ranged from 0.08 to 1.08% while DCI varied from 0.233 to 0.000. In this study original data was compared with thirty one previous national and international published papers from neighboring region to compare the medicinal uses and obtain some novel plant species. About 42% of the medicinal plant species were reported for the first time in treatment of hypertension in comparison to these 31 published papers. Different phytochemical activities of antihypertensive plants were also reported from literature. This research work documents the traditional knowledge of medicinal plants usage and provides baseline in designing clinical trials and pharmacological analysis for treatment of hypertension.
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Affiliation(s)
- Khafsa Malik
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Mushtaq Ahmad
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Center for Natural Products Lab, Chengdu Institute of Biology, Sichuan, China
| | - Rainer W. Bussmann
- Department of Ethnobotany, Institute of Botany, Ilia State University, Tbilisi, Georgia
| | - Akash Tariq
- Key Laboratory of Mountain Ecological Restoration, Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Riaz Ullah
- Medicinal Aromatic and Poisonous Plants Research Center, College of Pharmacy King Saud University, Riyadh, Saudi Arabia
| | - Ali S. Alqahtani
- Medicinal Aromatic and Poisonous Plants Research Center, College of Pharmacy King Saud University, Riyadh, Saudi Arabia
| | - Abdelaaty A. Shahat
- Medicinal Aromatic and Poisonous Plants Research Center, College of Pharmacy King Saud University, Riyadh, Saudi Arabia
- Phytochemistry Department, National Research Centre, Giza, Egypt
| | - Neelam Rashid
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Zafar
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Shazia Sultana
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Center for Natural Products Lab, Chengdu Institute of Biology, Sichuan, China
| | - Syed N. Shah
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Moharram FAE, Al-Gendy AA, El-Shenawy SM, Ibrahim BM, Zarka MA. Phenolic profile, anti-inflammatory, antinociceptive, anti-ulcerogenic and hepatoprotective activities of Pimenta racemosa leaves. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:208. [PMID: 29976187 PMCID: PMC6034294 DOI: 10.1186/s12906-018-2260-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 06/18/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Pimenta racemosa tree has many traditional uses where its leaves are used as herbal tea for treatment of flatulence, gastric disorder, osteoarthritis, colds and fever in addition to its analgesic and anti-inflammatory activities. So, this study aimed to isolate phenolic constituents of 80% aqueous methanol extract (AME) of leaves and evaluate its biological activities. METHODS The defatted AME was chromatographed and structures of the isolated compounds were elucidated using UV, NMR spectroscopy and UPLC-ESI-MS analysis. Antioxidant activity was investigated using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity. Anti-inflammatory activity was evaluated using carrageenan - induced paw oedema, while antinociceptive activity was determined by chemical and thermal stimuli. Anti-ulcerogenic effect of AME against gastric damage induced by ethanol in Wister male albino rats was evaluated. Also, hepatoprotective activity was investigated through determination of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) following oral administration of paracetamol. Both of Anti-ulcerogenic and hepatoprotective activities (125, 250 and 500 mg/kg b.wt.) were supported by histopathological examinations. RESULTS Gallic acid (1), methyl gallate (2), avicularin (3), quercetin 3-O-β-D-arbinopyranoside (4), quercetin 3-O-β-D-glucopyranoside (5), quercetrin (6), cynaroside (7), strictinin (8), castalagin (9), grandinin (10) quercetin (11) and ellagic acid (12) were isolated. AME showed significant radical scavenging activity (SC50 = 4.6 μg/mL), promising anti-inflammatory effect through inhibition of oedema and antinociceptive activity by reduction in number of writhes after acetic acid injection and prolongation of reaction time towards the thermal stimulus. AME reduced the gastric mucosal lesions compared with ethanol control and ranitidine groups, ALT at the three doses and AST only at 125 and 250 mg/kg b.wt., when compared with paracetamol group. The results were confirmed by histopathological studies. CONCLUSION P. racemosa leaves are rich in phenolic compounds and showed significant biological activities.
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Affiliation(s)
| | - Amal Amin Al-Gendy
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, 44519 Egypt
| | | | - Bassant M. Ibrahim
- Department of Pharmacology, National Research Center, Dokki, Cairo, 12622 Egypt
| | - Mohamed A. Zarka
- Department of Pharmacognosy, Faculty of Pharmacy, Modern Sciences and Arts University, 6 October City, Egypt
- Present Address: Department of Pharmacognosy, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
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Jayachandran M, Zhang T, Ganesan K, Xu B, Chung SSM. Isoquercetin ameliorates hyperglycemia and regulates key enzymes of glucose metabolism via insulin signaling pathway in streptozotocin-induced diabetic rats. Eur J Pharmacol 2018; 829:112-120. [DOI: 10.1016/j.ejphar.2018.04.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 10/17/2022]
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Malik K, Ahmad M, Zhang G, Rashid N, Zafar M, Sultana S, Shah SN. Traditional plant based medicines used to treat musculoskeletal disorders in Northern Pakistan. Eur J Integr Med 2018. [DOI: 10.1016/j.eujim.2018.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Jayachandran M, Vinayagam R, Ambati RR, Xu B, Chung SSM. Guava Leaf Extract Diminishes Hyperglycemia and Oxidative Stress, Prevents β-Cell Death, Inhibits Inflammation, and Regulates NF-kB Signaling Pathway in STZ Induced Diabetic Rats. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4601649. [PMID: 29670899 PMCID: PMC5835305 DOI: 10.1155/2018/4601649] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/18/2017] [Accepted: 12/11/2017] [Indexed: 12/19/2022]
Abstract
Traditional Chinese medication has been utilized by Chinese medical practitioners to treat the varied symptoms of diabetes mellitus (DM). Notably, guava leaf has been used to treat diabetes in Asia. Our present study has been designed to analyze the action of guava leaf extract (GLE) at the molecular level in treating DM. A low dose of streptozotocin (STZ) was used to induce experimental diabetes in animals. Rats were treated with GLE at different concentrations (100, 200, and 400 mg/kg b.w.). The standard drug glibenclamide (GB) (600 μg/kg b.w.) was used for comparison. The diabetic rats showed a reduced level of insulin, accompanied by exaggerated levels of blood glucose, lipid peroxidation product, and augmented expressions of inflammatory cytokines, and showed reduced levels of antioxidants compared to the control rats. Supplementation with GLE counteracted the consequences of STZ. It suppresses the oxidative stress and inhibits the state of inflammation and the results are almost similar to that of standard drug group (GB group 5). Our present research, therefore, provides useful data concerning guava leaf extract by a thorough assessment in diabetes management. Being a natural product, additional analysis on GLE can shed light on finding effective phytochemicals within the field of diabetes mellitus.
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Affiliation(s)
- Muthukumaran Jayachandran
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong 519087, China
| | - Ramachandran Vinayagam
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong 519087, China
| | - Ranga Rao Ambati
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong 519087, China
- Department of Biotechnology, Vignan's Foundation for Science, Technology and Research (Deemed to Be University), Vadlamudi, Guntur, Andhra Pradesh 522213, India
| | - Baojun Xu
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong 519087, China
| | - Stephen Sum Man Chung
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong 519087, China
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Vijayakumar K, Rengarajan RL, Radhakrishnan R, Anand AV. Hypolipidemic Effect of Psidium guajava Leaf Extract Against Hepatotoxicity in Rats. Pharmacogn Mag 2018; 14:4-8. [PMID: 29576694 PMCID: PMC5858240 DOI: 10.4103/pm.pm_167_17] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 05/17/2017] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Plant-based natural extracts cure several diseases in human. However, the extract of Psidium guajava leaf is not yet evaluated on changes of lipid profile in hepatic disease affected rats. OBJECTIVE The present study was aimed to evaluate the mitigation effect of the ethanolic extract of P. guajava leaf and its isolated quercetin fraction on hepatotoxic rats. MATERIALS AND METHODS Carbon tetrachloride (CCl4) was injected to rats for hepatic disease induction and silymarin drug was used as positive control to compare plant ethanolic extract. The lipid profiles were assessed in both plasma and liver tissue of diseased and control rats. RESULTS Levels of total cholesterol, triglycerides, free fatty acids, phospholipids, and low-density lipoprotein cholesterol were increased and the level of high-density lipoprotein cholesterol (HDL-C) was decreased in CCl4-induced hepatotoxic rats. The treatment of P. guajava (100, 200, and 300 mg/kg, bw) and isolated quercetin fraction (20 mg/kg, bw) doses decreased the elevated levels of all these parameters in diseased rats and restored the normal concentration of HDL-C. CONCLUSION The results of the present study concluded that the P. guajava leaf and its isolated quercetin fraction can significantly regulate lipid metabolism in CCl4-induced hepatotoxic rats and decrease the disease rate. SUMMARY Psidium guajava leaf extract reduces the hepatotoxicity and disease rate in ratsQuercetin fraction of leaf extract significantly regulates lipid profile in hepatic diseased rats. Abbreviations used: CCl4: Carbon tetrachloride; FFA: Free fatty acids; HDL-C: High-density lipoprotein cholesterol; LCAT: Lecithin cholesterol acyltransferase; LDL-C: Low-density lipoprotein cholesterol; PL: Phospholipids; TC: Total cholesterol; TG: Triglycerides; VLDL-C: Very low-density lipoprotein cholesterol.
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Affiliation(s)
- K. Vijayakumar
- Department of Biochemistry, MIET Arts and Science College, Trichirappalli, India
| | - R. L. Rengarajan
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - R. Radhakrishnan
- Department of Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
| | - A. Vijaya Anand
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, India
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Rawat P, Singh PK, Kumar V. Evidence based traditional anti-diarrheal medicinal plants and their phytocompounds. Biomed Pharmacother 2017; 96:1453-1464. [DOI: 10.1016/j.biopha.2017.11.147] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 11/21/2017] [Accepted: 11/29/2017] [Indexed: 12/18/2022] Open
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Viborg AH, Katayama T, Arakawa T, Abou Hachem M, Lo Leggio L, Kitaoka M, Svensson B, Fushinobu S. Discovery of α-l-arabinopyranosidases from human gut microbiome expands the diversity within glycoside hydrolase family 42. J Biol Chem 2017; 292:21092-21101. [PMID: 29061847 DOI: 10.1074/jbc.m117.792598] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 10/18/2017] [Indexed: 12/30/2022] Open
Abstract
Enzymes of the glycoside hydrolase family 42 (GH42) are widespread in bacteria of the human gut microbiome and play fundamental roles in the decomposition of both milk and plant oligosaccharides. All GH42 enzymes characterized so far have β-galactosidase activity. Here, we report the existence of a GH42 subfamily that is exclusively specific for α-l-arabinopyranoside and describe the first representative of this subfamily. We found that this enzyme (BlArap42B) from a probiotic Bifidobacterium species cannot hydrolyze β-galactosides. However, BlArap42B effectively hydrolyzed paeonolide and ginsenoside Rb2, plant glycosides containing an aromatic aglycone conjugated to α-l-arabinopyranosyl-(1,6)-β-d-glucopyranoside. Paeonolide, a natural glycoside from the roots of the plant genus Paeonia, is not hydrolyzed by classical GH42 β-galactosidases. X-ray crystallography revealed a unique Trp345-X12-Trp358 sequence motif at the BlArap42B active site, as compared with a Phe-X12-His motif in classical GH42 β-galactosidases. This analysis also indicated that the C6 position of galactose is blocked by the aromatic side chains, hence allowing accommodation only of Arap lacking this carbon. Automated docking of paeonolide revealed that it can fit into the BlArap42B active site. The Glcp moiety of paeonolide stacks onto the aromatic ring of the Trp252 at subsite +1 and C4-OH is hydrogen bonded with Asp249 Moreover, the aglycone stacks against Phe421 from the neighboring monomer in the BlArap42B trimer, forming a proposed subsite +2. These results further support the notion that evolution of metabolic specialization can be tracked at the structural level in key enzymes facilitating degradation of specific glycans in an ecological niche.
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Affiliation(s)
- Alexander Holm Viborg
- From the Department of Biotechnology, The University of Tokyo, Tokyo 113-8657, Japan.,the Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2400 Kgs. Lyngby, Denmark
| | - Takane Katayama
- the Graduate School of Biostudies, Kyoto University, Koyoto 606-8502, Japan.,the Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, Ishikawa 921-8836, Japan
| | - Takatoshi Arakawa
- From the Department of Biotechnology, The University of Tokyo, Tokyo 113-8657, Japan
| | - Maher Abou Hachem
- the Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2400 Kgs. Lyngby, Denmark
| | - Leila Lo Leggio
- the Department of Chemistry, University of Copenhagen, Copenhagen 2100, Denmark, and
| | - Motomitsu Kitaoka
- the Food Research Institute, National Agriculture and Food Research Organization, Tsukuba 305-8642, Japan
| | - Birte Svensson
- the Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2400 Kgs. Lyngby, Denmark
| | - Shinya Fushinobu
- From the Department of Biotechnology, The University of Tokyo, Tokyo 113-8657, Japan,
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Alves DR, Maia de Morais S, Tomiotto-Pellissier F, Miranda-Sapla MM, Vasconcelos FR, da Silva ING, Araujo de Sousa H, Assolini JP, Conchon-Costa I, Pavanelli WR, Freire FDCO. Flavonoid Composition and Biological Activities of Ethanol Extracts of Caryocar coriaceum Wittm., a Native Plant from Caatinga Biome. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:6834218. [PMID: 29081821 PMCID: PMC5610879 DOI: 10.1155/2017/6834218] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 07/24/2017] [Indexed: 11/18/2022]
Abstract
Caryocar coriaceum fruits, found in Brazilian Cerrado and Caatinga, are commonly used as food and in folk medicine, as anti-inflammatory, bactericide, fungicide, leishmanicide, and nematicide. Due to the biological potential of this plant, this study focuses on the evaluation of antifungal and antileishmanial activities, including anticholinesterase and antioxidant tests, correlating with total phenols and flavonoids content. Peel extracts contain higher yield of phenols and flavonoids as analyzed by spectrophotometric methods. HPLC analysis of flavonoids revealed that isoquercitrin is the main flavonoid in both parts of the fruit, and peel extract showed the best antioxidant activity. In the inhibition of the acetylcholinesterase assay, both extracts demonstrate action comparable to physostigmine. The antimicrobial activity of extracts was evaluated against strains of Malassezia sp. and Microsporum canis, using the broth microdilution technique, in which the extracts showed similar MIC and MFC. The extracts present antileishmanial activity and low toxicity on murine macrophages and erythrocytes. Therefore, these results suggest a potential for the application of C. coriaceum fruit's ethanol extracts in the treatment against dermatophyte fungi and leishmaniasis, probably due to the presence of active flavonoids. Further in vivo studies are recommended aiming at the development of possible new pharmaceutical compounds.
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Affiliation(s)
- Daniela Ribeiro Alves
- Veterinarian Sciences Post Graduation Program, Ceará State University, Av. Dr. Silas Munguba 1700, Campus do Itaperi, 60714-903 Fortaleza, CE, Brazil
| | - Selene Maia de Morais
- Veterinarian Sciences Post Graduation Program, Ceará State University, Av. Dr. Silas Munguba 1700, Campus do Itaperi, 60714-903 Fortaleza, CE, Brazil
| | - Fernanda Tomiotto-Pellissier
- Pathological Sciences Center, Londrina State University, Rodovia Celso Garcia Cid, PR 445, Km 380, Campus Universitário, 86057-970 Londrina, PR, Brazil
| | - Milena Menegazzo Miranda-Sapla
- Pathological Sciences Center, Londrina State University, Rodovia Celso Garcia Cid, PR 445, Km 380, Campus Universitário, 86057-970 Londrina, PR, Brazil
| | - Fábio Roger Vasconcelos
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita 2270, Planalto do Pici, 60511-110 Fortaleza, CE, Brazil
| | - Isaac Neto Goes da Silva
- Veterinarian Sciences Post Graduation Program, Ceará State University, Av. Dr. Silas Munguba 1700, Campus do Itaperi, 60714-903 Fortaleza, CE, Brazil
| | - Halisson Araujo de Sousa
- Chemical Course, Ceará State University, Av. Dr. Silas Munguba 1700, Campus do Itaperi, 60714-903 Fortaleza, CE, Brazil
| | - João Paulo Assolini
- Pathological Sciences Center, Londrina State University, Rodovia Celso Garcia Cid, PR 445, Km 380, Campus Universitário, 86057-970 Londrina, PR, Brazil
| | - Ivete Conchon-Costa
- Pathological Sciences Center, Londrina State University, Rodovia Celso Garcia Cid, PR 445, Km 380, Campus Universitário, 86057-970 Londrina, PR, Brazil
| | - Wander Rogério Pavanelli
- Pathological Sciences Center, Londrina State University, Rodovia Celso Garcia Cid, PR 445, Km 380, Campus Universitário, 86057-970 Londrina, PR, Brazil
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Phytochemical Analysis and Antimicrobial Activity of Myrcia tomentosa (Aubl.) DC. Leaves. Molecules 2017; 22:molecules22071100. [PMID: 28677650 PMCID: PMC6152266 DOI: 10.3390/molecules22071100] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 06/29/2017] [Indexed: 12/31/2022] Open
Abstract
This work describes the isolation and structural elucidation of compounds from the leaves of Myrcia tomentosa (Aubl.) DC. (goiaba-brava) and evaluates the antimicrobial activity of the crude extract, fractions and isolated compounds against bacteria and fungi. Column chromatography was used to fractionate and purify the extract of the M. tomentosa leaves and the chemical structures of the compounds were determined using spectroscopic techniques. The antibacterial and antifungal activities were assessed using the broth microdilution method. The phytochemical investigation isolated 11 compounds: α-bisabolol, α-bisabolol oxide B, α-cadinol, β-sitosterol, n-pentacosane, n-tetracosane, quercetin, kaempferol, avicularin, juglanin and guaijaverin. The crude ethanolic extract and its fractions were tested against 15 bacteria and 9 yeasts. The crude extract inhibited the in vitro growth of yeasts at concentration of 4 to 32 μg/mL. The hexane, dichloromethane, ethyl acetate and aqueous fractions inhibited Candida sp. at concentrations of 4 to 256 μg/mL, whereas the Cryptococcus sp. isolates were inhibited only by the hexane and dichloromethane fractions in minimal inhibitory concentrations (MICs) at 16 to 64 μg/mL. The flavonoid quercetin-3-O-α-arabinofuranose (avicularin) was the most active compound, inhibiting Candida species in concentrations of 2 to 32 μg/mL. The MIC values suggest potential activity of this plant species against yeast.
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43
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Health Effects of Psidium guajava L. Leaves: An Overview of the Last Decade. Int J Mol Sci 2017; 18:ijms18040897. [PMID: 28441777 PMCID: PMC5412476 DOI: 10.3390/ijms18040897] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 04/17/2017] [Accepted: 04/19/2017] [Indexed: 01/01/2023] Open
Abstract
Today, there is increasing interest in discovering new bioactive compounds derived from ethnomedicine. Preparations of guava (Psidium guajava L.) leaves have traditionally been used to manage several diseases. The pharmacological research in vitro as well as in vivo has been widely used to demonstrate the potential of the extracts from the leaves for the co-treatment of different ailments with high prevalence worldwide, upholding the traditional medicine in cases such as diabetes mellitus, cardiovascular diseases, cancer, and parasitic infections. Moreover, the biological activity has been attributed to the bioactive composition of the leaves, to some specific phytochemical subclasses, or even to individual compounds. Phenolic compounds in guava leaves have been credited with regulating blood-glucose levels. Thus, the aim of the present review was to compile results from in vitro and in vivo studies carried out with guava leaves over the last decade, relating the effects to their clinical applications in order to focus further research for finding individual bioactive compounds. Some food applications (guava tea and supplementary feed for aquaculture) and some clinical, in vitro, and in vivo outcomes are also included.
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Dzoyem JP, Melong R, Tsamo AT, Tchinda AT, Kapche DGWF, Ngadjui BT, McGaw LJ, Eloff JN. Cytotoxicity, antimicrobial and antioxidant activity of eight compounds isolated from Entada abyssinica (Fabaceae). BMC Res Notes 2017; 10:118. [PMID: 28264698 PMCID: PMC5339975 DOI: 10.1186/s13104-017-2441-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 03/01/2017] [Indexed: 12/23/2022] Open
Abstract
Background Entada abyssinica is a plant traditionally used against gastrointestinal bacterial infections. Eight compounds including three flavonoids, three terpenoids, a monoglyceride and a phenolic compound isolated from E. abyssinica were investigated for their cytotoxicity, antibacterial and antioxidant activity. Results Compounds 7 and 2 had remarkable activity against Salmonella typhimurium with the lowest respective minimum inhibitory concentration (MIC) values of 1.56 and 3.12 µg/mL. The antioxidant assay gave IC50 values varied from 0.48 to 2.87 μg/mL in the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, from 2.53 to 17.04 μg/mL in the 2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS) assay and from 1.43 to 103.98 µg/mL in the FRAP assay. Compounds had relatively low cytotoxicity (LC50 values ranging from 22.42 to 80.55 µg/mL) towards Vero cells. Ursolic acid had the most potent cytotoxicity against THP-1 and RAW 264.7 cells with LC50 values of 9.62 and 4.56 μg/mL respectively, and selectivity index values of 7.32 and 15.44 respectively. Conclusion Our findings suggest that among the terpenoid and flavonoid compounds studied, entadanin (compound 7) possess tremendous antibacterial activity against S. typhimurium and could be developed for the treatment of bacterial diseases.
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Affiliation(s)
- Jean P Dzoyem
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa. .,Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | - Raduis Melong
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.,Department of Chemistry, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 47, Yaoundé, Cameroon
| | - Armelle T Tsamo
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Alembert T Tchinda
- Institute of Medical Research and Medicinal Plants Studies (IMPM), Center of Medicinal Plants Studies and Traditional Medicine (CRPMT), P.O. Box 6163, Yaoundé, Cameroon
| | - Deccaux G W F Kapche
- Department of Chemistry, Higher Teachers' Training College, University of Yaoundé I, P.O. Box 47, Yaoundé, Cameroon
| | - Bonaventure T Ngadjui
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Lyndy J McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa
| | - Jacobus N Eloff
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa
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Vedakumari WS, Ayaz N, Karthick AS, Senthil R, Sastry TP. Quercetin impregnated chitosan–fibrin composite scaffolds as potential wound dressing materials — Fabrication, characterization and in vivo analysis. Eur J Pharm Sci 2017; 97:106-112. [DOI: 10.1016/j.ejps.2016.11.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 11/09/2016] [Accepted: 11/10/2016] [Indexed: 12/14/2022]
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46
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Gobi N, Ramya C, Vaseeharan B, Malaikozhundan B, Vijayakumar S, Murugan K, Benelli G. Oreochromis mossambicus diet supplementation with Psidium guajava leaf extracts enhance growth, immune, antioxidant response and resistance to Aeromonas hydrophila. FISH & SHELLFISH IMMUNOLOGY 2016; 58:572-583. [PMID: 27702676 DOI: 10.1016/j.fsi.2016.09.062] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/26/2016] [Accepted: 09/30/2016] [Indexed: 06/06/2023]
Abstract
In this research, we focused on the efficacy of aqueous and ethanol leaf extracts of Psidium guajava L. (guava) based experimental diets on the growth, immune, antioxidant and disease resistance of tilapia, Oreochromis mossambicus following challenge with Aeromonas hydrophila. The experimental diets were prepared by mixing powdered (1, 5 and 10 mg/g) aqueous and ethanol extract of guava leaf with commercial diet. The growth (FW, FCR and SGR), non-specific cellular immune (myeloperoxidase activity, reactive oxygen activity and reactive nitrogen activity) humoral immune (complement activity, antiprotease, alkaline phosphatase activity and lysozyme activity) and antioxidant enzyme responses (SOD, GPX, and CAT) were examined after 30 days of post-feeding. A significant enhancement in the biochemical and immunological parameters of fish were observed fed with experimental diets compared to control. The dietary supplementation of P. guajava leaf extract powder for 30 days significantly reduced the mortality and increased the disease resistance of O. mossambicus following challenge with A. hydrophila at 50 μl (1 × 107 cells ml-1) compared to control after post-infection. The results suggest that the guava leaf extract could be used as a promising feed additive in aquaculture.
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Affiliation(s)
- Narayanan Gobi
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - Chinnu Ramya
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - Baskaralingam Vaseeharan
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630004, Tamil Nadu, India.
| | - Balasubramanian Malaikozhundan
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - Sekar Vijayakumar
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi 630004, Tamil Nadu, India
| | - Kadarkarai Murugan
- Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore 632 115, Tamil Nadu, India
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
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47
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Psidium guajava L. and Psidium brownianum Mart ex DC. potentiate the effect of antibiotics against Gram-positive and Gram-negative bacteria. Eur J Integr Med 2016. [DOI: 10.1016/j.eujim.2016.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Vallejos-Vidal E, Reyes-López F, Teles M, MacKenzie S. The response of fish to immunostimulant diets. FISH & SHELLFISH IMMUNOLOGY 2016; 56:34-69. [PMID: 27389620 DOI: 10.1016/j.fsi.2016.06.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 05/25/2016] [Accepted: 06/21/2016] [Indexed: 06/06/2023]
Abstract
In order to maintain fish health and to improve performance immunostimulants have been used as dietary additives to improve weight gain, feed efficiency, and/or disease resistance in cultured fish. In aquaculture, non-specific immunostimulants have been widely used probably due to the limited knowledge of the immune response in fish and the ease of their application. Many studies have been carried out to assess the effect of dietary immunostimulants in fish including algal derivatives, herb and plant extract containing diets using a wide range of downstream analytical techniques. Many immunostimulants are based upon tradition and folklore transferred through generations and specific to certain geographical regions rather than known biological properties. However, there are studies in which it is possible to observe a clear and direct dose-dependent stimulatory effect upon the immune system. Other dietary supplements used contain PAMPs (Pathogen Associated Molecular Patterns) as immunostimulants whose recognition depends upon PRR (pathogen recognition receptor) interactions including the TLRs (Toll-like receptor). Despite the growing interest in the use of immunostimulants across the aquaculture industry the underlying mechanisms of ligand recognition, extract composition and activation of the fish immune response remains fragmented. In this review we focus upon the last 15 years of studies addressing the assessment of: (1) plant, herb and algae extracts; and (2) PAMPs, upon non-specific immune parameters of activation and immunostimulant diet efficacy.
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Affiliation(s)
- Eva Vallejos-Vidal
- Institut de Biotecnologia i Biomedicina, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain
| | - Felipe Reyes-López
- Department of Cell Biology, Physiology and Immunology, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain
| | - Mariana Teles
- Department of Cell Biology, Physiology and Immunology, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain
| | - Simon MacKenzie
- Institute of Aquaculture, University of Stirling, FK9 4LA Stirling, UK.
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49
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Sharma AK, Gangwar M, Kumar D, Nath G, Kumar Sinha AS, Tripathi YB. Phytochemical characterization, antimicrobial activity and reducing potential of seed oil, latex, machine oil and presscake of Jatropha curcas. AVICENNA JOURNAL OF PHYTOMEDICINE 2016; 6:366-75. [PMID: 27516977 PMCID: PMC4967832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 04/19/2015] [Accepted: 06/06/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study aims to evaluate the antimicrobial activity, phytochemical studies and thin layer chromatography analysis of machine oil, hexane extract of seed oil and methanol extract of presscake & latex of Jatropha curcas Linn (family Euphorbiaceae). MATERIALS AND METHODS J. curcas extracts were subjected to preliminary qualitative phytochemical screening to detect the major phytochemicals followed by its reducing power and content of phenol and flavonoids in different fractions. Thin layer chromatography was also performed using different solvent systems for the analysis of a number of constituents in the plant extracts. Antimicrobial activity was evaluated by the disc diffusion method, while the minimum inhibitory concentration, minimum bactericidal concentration and minimum fungicidal concentration were calculated by micro dilution method. RESULTS The methanolic fraction of latex and cake exhibited marked antifungal and antibacterial activities against Gram-positive and Gram-negative bacteria. Phytochemical analysis revealed the presence of alkaloids, saponins, tannins, terpenoids, steroids, glycosides, phenols and flavonoids. Reducing power showed dose dependent increase in concentration compared to standard Quercetin. Furthermore, this study recommended the isolation and separation of bioactive compounds responsible for the antibacterial activity which would be done by using different chromatographic methods such as high-performance liquid chromatography (HPLC), GC-MS etc. CONCLUSION The results of the above study suggest that all parts of the plants possess potent antibacterial activity. Hence, it is important to isolate the active principles for further testing of antimicrobial and other biological efficacy.
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Affiliation(s)
- Amit Kumar Sharma
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi 21005, UP India
| | - Mayank Gangwar
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi- 221005 UP India
- Department of Pharmacology, Institute of Medical Sciences, Banaras Hindu University, Varanasi- 221005 UP India
| | - Dharmendra Kumar
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi- 221005 UP India
| | - Gopal Nath
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi- 221005 UP India
| | - Akhoury Sudhir Kumar Sinha
- Department of Chemical Engg, Indian Institute of Technology, Banaras Hindu University, Vanarasi-221005, UP India
| | - Yamini Bhushan Tripathi
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi 21005, UP India
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50
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Chemical Characterization and in Vitro Antibacterial Activity of Myrcianthes hallii (O. Berg) McVaugh (Myrtaceae), a Traditional Plant Growing in Ecuador. MATERIALS 2016; 9:ma9060454. [PMID: 28773577 PMCID: PMC5456788 DOI: 10.3390/ma9060454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 01/26/2023]
Abstract
Myrcianthes hallii (O. Berg) McVaugh (Myrtaceae) is a plant native to Ecuador, traditionally used for its antiseptic properties. The composition of the hydro-methanolic extract of this plant was determined by submitting it to ultra-high performance liquid chromatography (UHPLC) hyphenated to heated-electrospray ionization mass spectrometry and UV detection. The presence of antimicrobial components prompted us to test the extract against methicillin-resistant and methicillin-susceptible Staphylococcus aureus, multidrug-resistant and susceptible Escherichia coli, Pseudomonas aeruginosa, Enterococcus spp. and Streptococcus pyogenes strains. The chromatographic analysis led to the identification of 38 compounds, including polyphenols and organic acids, and represents the first chemical characterization of this plant. The extract showed modest antibacterial activity against all tested bacteria, with the exception of E. coli which was found to be less sensitive. Whilst methicillin-resistant strains usually display resistance to several drugs, no relevant differences were observed between methicillin-susceptible and resistant strains. Considering its long-standing use in folk medicine, which suggests the relative safety of the plant, and the presence of many known antibacterial polyphenolic compounds responsible for its antibacterial activity, the results show that M. hallii extract could be used as a potential new antiseptic agent. Moreover, new anti-infective biomaterials and nanomaterials could be designed through the incorporation of M. hallii polyphenols. This prospective biomedical application is also discussed.
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