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Zhu X, Yang G, Shen Y, Niu L, Peng Y, Chen H, Li H, Yang X. Physicochemical Properties and Biological Activities of Quinoa Polysaccharides. Molecules 2024; 29:1576. [PMID: 38611855 PMCID: PMC11013414 DOI: 10.3390/molecules29071576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 04/14/2024] Open
Abstract
Quinoa, known as the "golden grain" for its high nutritional value, has polysaccharides as one of its sources of important nutrients. However, the biological functions of quinoa polysaccharides remain understudied. In this study, two crude polysaccharide extracts of quinoa (Q-40 and Q-60) were obtained through sequential precipitation with 40% and 60% ethanol, with purities of 58.29% (HPLC) and 62.15% (HPLC) and a protein content of 8.27% and 9.60%, respectively. Monosaccharide analysis revealed that Q-40 contained glucose (Glc), galacturonic acid (GalA), and arabinose (Ara) in a molar ratio of 0.967:0.027:0.006. Q-60 was composed of xylose (xyl), arabinose (Ara), galactose, and galacturonic acid (GalA) with a molar ratio of 0.889:0.036:0.034:0.020. The average molecular weight of Q-40 ranged from 47,484 to 626,488 Da, while Q-60 showed a range of 10,025 to 47,990 Da. Rheological experiments showed that Q-40 exhibited higher viscosity, while Q-60 demonstrated more elastic properties. Remarkably, Q-60 showed potent antioxidant abilities, with scavenging rates of 98.49% for DPPH and 57.5% for ABTS. Antibacterial experiments using the microdilution method revealed that Q-40 inhibited the growth of methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli), while Q-60 specifically inhibited MRSA. At lower concentrations, both polysaccharides inhibited MDA (MD Anderson Cancer Center) cell proliferation, but at higher concentrations, they promoted proliferation. Similar proliferation-promoting effects were observed in HepG2 cells. The research provides important information in the application of quinoa in the food and functional food industries.
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Affiliation(s)
- Xucheng Zhu
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; (X.Z.); (Y.S.); (L.N.); (Y.P.); (H.C.)
| | - Guiyan Yang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China;
| | - Yingbin Shen
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; (X.Z.); (Y.S.); (L.N.); (Y.P.); (H.C.)
| | - Liqiong Niu
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; (X.Z.); (Y.S.); (L.N.); (Y.P.); (H.C.)
| | - Yao Peng
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; (X.Z.); (Y.S.); (L.N.); (Y.P.); (H.C.)
| | - Haiting Chen
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; (X.Z.); (Y.S.); (L.N.); (Y.P.); (H.C.)
| | - Haimei Li
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; (X.Z.); (Y.S.); (L.N.); (Y.P.); (H.C.)
| | - Xinquan Yang
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; (X.Z.); (Y.S.); (L.N.); (Y.P.); (H.C.)
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Zhao WJ, Li Y, Jiao ZL, Su PP, Yang LB, Sun CQ, Xiu JF, Shang XL, Guo G. Function analysis and characterisation of a novel chitinase, MdCht9, in Musca domestica. Insect Mol Biol 2024; 33:157-172. [PMID: 38160324 DOI: 10.1111/imb.12887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/26/2023] [Indexed: 01/03/2024]
Abstract
Insect chitinases have been proposed as potential targets for pest control. In this work, a novel group IV chitinase gene, MdCht9, from Musca domestica was found to have multiple functions in the physiological activity, including chitin regulation, development and antifungal immunity. The MdCht9 gene was cloned and sequenced, its phylogeny was analysed and its expression was determined in normal and 20E treated larvae. Subsequently, RNA interference (RNAi)-mediated MdCht9 knockdown was performed, followed by biochemical assays, morphological observations and transcriptome analysis. Finally, the recombinant protein MdCht9 (rMdCht9) was purified and tested for anti-microbial activity and enzyme characteristics. The results showed that MdCht9 consists of three domains, highly expressed in a larval salivary gland. RNAi silencing of MdCht9 resulted in significant down-regulation of chitin content and expression of 15 chitin-binding protein (CBP) genes, implying a new insight that MdCht9 might regulate chitin content by influencing the expression of CBPs. In addition, more than half of the lethality and partial wing deformity appeared due to the dsMdCht9 treatment. In addition, the rMdCht9 exhibited anti-microbial activity towards Candida albicans (fungus) but not towards Escherichia coli (G-) or Staphylococcus aureus (G+). Our work expands on previous studies of chitinase while providing a potential target for pest management.
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Affiliation(s)
- Wen-Jing Zhao
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Yan Li
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- Sanquan College of Xinxiang Medical University, Xinxiang, China
| | - Zhen-Long Jiao
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Pei-Pei Su
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Long-Bing Yang
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Chao-Qin Sun
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Jiang-Fan Xiu
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Xiao-Li Shang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control (Guizhou Medical University), Ministry of Education, Guiyang, China
| | - Guo Guo
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control (Guizhou Medical University), Ministry of Education, Guiyang, China
- Translational Medicine Research Center, Guizhou Medical University, Guiyang, China
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Zhao C, Wang C, Zhou Y, Hu T, Zhang Y, Lv X, Li J, Zhou Y. Discovery of Potential Anti-Microbial Molecules and Spectrum Correlation Effect of Ardisia crenata Sims via High-Performance Liquid Chromatography Fingerprints and Molecular Docking. Molecules 2024; 29:1178. [PMID: 38474690 DOI: 10.3390/molecules29051178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/22/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
Ardisia crenata Sims, an important ethnic medicine, is recorded in the Chinese Pharmacopoeia for treating laryngeal diseases and upper respiratory tract infections. This study aimed to evaluate the antimicrobial effect of extracts and potential antimicrobial compounds of A. crenata Sims. It was found that the roots of A. crenata Sims have a potential inhibitory effect on Candida albicans and Aspergillus flavus, with MICs of 1.56 mg/mL and 0.39 mg/mL, and the leaves of A. crenata Sims have a potential inhibitory effect on Pseudomonas aeruginosa and Staphylococcus aureus, with MICs of 3.12 mg/mL and 6.77 mg/mL, respectively. Meanwhile, five compounds including one catechin and four bergenins were obtained from roots. These components were identified on the fingerprint spectrum, representing chromatographic peaks 16, 21, 22, 23, and 25, respectively. Among these, 11-β-d-glucopyranosyl-bergenin and (-)-gallocatechin showed potential inhibition for Staphylococcus aureus and Pseudomonas aeruginosa with MIC of 0.26 and 0.33 mg/mL, respectively. The roots, stems, and leaves of A. crenata Sims are very similar in chemical composition, with large differences in content. Principal component analysis (PCA) and Hierarchical cluster analysis (HCA) showed that 16 batches of A. crenata Sims could be divided into four main production areas: Guizhou, Jiangsu, Guangxi, and Jiangxi. Furthermore, molecular docking results showed that 11-β-d-glucopyranosyl-bergenin had a better affinity for Casein lytic proteinase P (ClpP), and (-)-gallocatechin possessed a strong affinity for LasA hydrolysis protease and LasB elastase. These findings suggest catechin and bergenins from A. crenata Sims can be used as antimicrobial activity molecules.
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Affiliation(s)
- Chunli Zhao
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Changbin Wang
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yongqiang Zhou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Tao Hu
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Yan Zhang
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Xiang Lv
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Jiaxin Li
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Ying Zhou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
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Nabizadeh S, Rahbarnia L, Nowrozi J, Farajnia S, Hosseini F. Rational design of hybrid peptide with high antimicrobial property derived from Melittin and Lasioglossin. J Biomol Struct Dyn 2023:1-9. [PMID: 37885265 DOI: 10.1080/07391102.2023.2274971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Hybridization of Antimicrobial peptides (AMPs) with unique abilities is now considered to improve AMPs' function as promising therapeutic candidates. In the current research, Lasioglossin (LL-III) with a high antimicrobial effect on Acinetobacter (A.) baumanni and Melittin with a high antimicrobial effect against Staphylococcus (S.) aureus were selected for designing a hybrid peptide with modified properties. In the present study, a hybrid peptide with modified properties was designed. Molecular dynamic (MD) and coarse-grained (CG) simulations were done to evaluate the stability and interaction of the hybrid peptide with related membrane models. In this study, a truncated Melittin peptide (11 amino acids) was fused to an LL-III peptide (15 amino acids) to raise the antimicrobial activity. A new hybrid peptide analog (LM1) was selected by replacing the arginine with isoleucine in the fifth position of truncated Melittin to raise the antimicrobial rate of the peptide. The potential for binding of the LM1 to lipid membrane (D factor) was increased from 2.02 related to Melittin to 3.62. Based on VMD results, the N-terminal of LM1 peptide related to LL-III was the alpha helix during 200 ns. However, the C-terminal region related to the Melittin peptide only at 50 ns was in alpha helix form. The RMSD of the LM1 peptide was in the range of 0.2 to 0.8, which, after 160 ns, reached stability. RMSD and RMSF results indicated no unwanted fluctuations during the 200 ns MD simulation. A significant movement of LM1 peptide inside the S. aureus membrane(4.76 nm) and A. baumanni membrane (3.2 nm) was observed by CG simulation. Our findings highlight the high stability of the designed hybrid peptide and its antimicrobial potential to halter A. baumanii and S. aureus bacteria.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Somayeh Nabizadeh
- Department of Microbiology, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Leila Rahbarnia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jamileh Nowrozi
- Department of Microbiology, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Safar Farajnia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Biotechnology Research Center, Tabriz University, Tabriz, Iran
| | - Farzaneh Hosseini
- Department of Microbiology, North Tehran Branch, Islamic Azad University, Tehran, Iran
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Andersone A, Janceva S, Lauberte L, Ramata-Stunda A, Nikolajeva V, Zaharova N, Rieksts G, Telysheva G. Anti-Inflammatory, Anti-Bacterial, and Anti-Fungal Activity of Oligomeric Proanthocyanidins and Extracts Obtained from Lignocellulosic Agricultural Waste. Molecules 2023; 28:molecules28020863. [PMID: 36677921 PMCID: PMC9861313 DOI: 10.3390/molecules28020863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023]
Abstract
It has now been proven that many pathogens that cause infections and inflammation gradually mutate and become resistant to antibiotics. Chemically synthesized drugs treating inflammation most often only affect symptoms, but side effects could lead to the failure of human organs' functionality. On the other hand, plant-derived natural compounds have a long-term healing effect. It was shown that sea buckthorn (SBT) twigs are a rich source of biologically active compounds, including oligomeric proanthocyanidins (PACs). This study aimed to assess the anti-pathogenic and anti-inflammatory activity of water/ethanol extracts and PACs obtained from the lignocellulosic biomass of eight SBT cultivars. The anti-pathogenic activity of extracts and PACs was studied against pathogenic bacteria Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, Bacillus cereus and fungus Candida albicans in 96-well plates by the two-fold serial broth microdilution method. The anti-bacterial activity of purified PACs was 4 and 10 times higher than for water and water/ethanol extracts, respectively, but the extracts had higher anti-fungal activity. Purified PACs showed the ability to reduce IL-8 and IL-6 secretion from poly-I:C-stimulated peripheral blood mononuclear cells. For the extracts and PACs of SBT cultivar 'Maria Bruvele' in the concentration range 0.0313-4.0 mg/mL, no toxic effect was observed.
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Affiliation(s)
- Anna Andersone
- Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia
- Ekokompozit Ltd., Dzerbenes Street 27, LV-1006 Riga, Latvia
| | - Sarmite Janceva
- Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia
- Correspondence: ; Tel.: +371-25148850
| | - Liga Lauberte
- Laboratory of Finished Dosage Forms, Riga Stradins University, LV-1007 Riga, Latvia
| | - Anna Ramata-Stunda
- Faculty of Biology, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia
| | - Vizma Nikolajeva
- Faculty of Biology, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia
| | - Natalija Zaharova
- Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia
- Ekokompozit Ltd., Dzerbenes Street 27, LV-1006 Riga, Latvia
| | - Gints Rieksts
- Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia
- Laboratory of Heat and Mass Transfer, The Institute of Physics of University of Latvia, LV-2169 Salaspils, Latvia
| | - Galina Telysheva
- Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry, LV-1006 Riga, Latvia
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Coppola D, Buonocore C, Palisse M, Tedesco P, de Pascale D. Exploring Oceans for Curative Compounds: Potential New Antimicrobial and Anti-Virulence Molecules against Pseudomonas aeruginosa. Mar Drugs 2022; 21:md21010009. [PMID: 36662182 PMCID: PMC9865402 DOI: 10.3390/md21010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Although several antibiotics are already widely used against a large number of pathogens, the discovery of new antimicrobial compounds with new mechanisms of action is critical today in order to overcome the spreading of antimicrobial resistance among pathogen bacteria. In this regard, marine organisms represent a potential source of a wide diversity of unique secondary metabolites produced as an adaptation strategy to survive in competitive and hostile environments. Among the multidrug-resistant Gram-negative bacteria, Pseudomonas aeruginosa is undoubtedly one of the most important species due to its high intrinsic resistance to different classes of antibiotics on the market and its ability to cause serious therapeutic problems. In the present review, we first discuss the general mechanisms involved in the antibiotic resistance of P. aeruginosa. Subsequently, we list the marine molecules identified up until now showing activity against P. aeruginosa, dividing them according to whether they act as antimicrobial or anti-virulence compounds.
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Affiliation(s)
- Daniela Coppola
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy
- Correspondence: (D.C.); (D.d.P.)
| | - Carmine Buonocore
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy
| | - Morgan Palisse
- Département des Sciences de la Vie et de la Terre, Université de Caen Normandie, Boulevard Maréchal Juin CS, CEDEX, 14032 Caen, France
| | - Pietro Tedesco
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy
| | - Donatella de Pascale
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy
- Correspondence: (D.C.); (D.d.P.)
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Dubal GG, Vachchharajani PR, Solanki MJ, Shah VH. Design, Synthesis, SAR, Pharmacokinetic Prediction of New 4-Quinolones as Anti-Microbial Agents. RUSS J GEN CHEM+ 2022; 92:2161-2168. [PMID: 36408421 PMCID: PMC9643968 DOI: 10.1134/s1070363222100280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 08/23/2022] [Accepted: 09/02/2022] [Indexed: 11/04/2023]
Abstract
s of new 4-quinolone derivatives was synthesized by conventional heating method. For the synthesized compounds, we performed pharmacokinetic prediction, SAR and antimicrobial assay. The presence of halogen elements plays a key role in the biological activity that is clear by in vitro analysis. Target compounds exhibit moderate to significant activity near to standard marketed drugs like amoxycillin, chloramphenicol, ciprofloxacin, norfloxacin, griseofulvin, and nystatin.
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Affiliation(s)
- G. G. Dubal
- Department of Chemistry, School of Science, RK University, 360020 Rajkot, India
| | | | | | - V. H. Shah
- Department of Chemistry, Saurashtra University, 360005 Rajkot, India
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Simon S, Sibuyi NRS, Fadaka AO, Meyer S, Josephs J, Onani MO, Meyer M, Madiehe AM. Biomedical Applications of Plant Extract-Synthesized Silver Nanoparticles. Biomedicines 2022; 10:2792. [PMID: 36359308 PMCID: PMC9687463 DOI: 10.3390/biomedicines10112792] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 07/30/2023] Open
Abstract
Silver nanoparticles (AgNPs) have attracted a lot of interest directed towards biomedical applications due in part to their outstanding anti-microbial activities. However, there have been many health-impacting concerns about their traditional synthesis methods, i.e., the chemical and physical methods. Chemical methods are commonly used and contribute to the overall toxicity of the AgNPs, while the main disadvantages of physical synthesis include high production costs and high energy consumption. The biological methods provide an economical and biocompatible option as they use microorganisms and natural products in the synthesis of AgNPs with exceptional biological properties. Plant extract-based synthesis has received a lot of attention and has been shown to resolve the limitations associated with chemical and physical methods. AgNPs synthesized using plant extracts provide a safe, cost-effective, and environment-friendly approach that produces biocompatible AgNPs with enhanced properties for use in a wide range of applications. The review focused on the use of plant-synthesized AgNPs in various biomedical applications as anti-microbial, anti-cancer, anti-inflammatory, and drug-delivery agents. The versatility and potential use of green AgNPs in the bio-medicinal sector provides an innovative alternative that can overcome the limitations of traditional systems. Thus proving green nanotechnology to be the future for medicine with continuous progress towards a healthier and safer environment by forming nanomaterials that are low- or non-toxic using a sustainable approach.
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Affiliation(s)
- Sohail Simon
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
- Nanobiotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Nicole Remaliah Samantha Sibuyi
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
- Health Platform Diagnostic Unit, Advanced Materials Division, Mintek, Randburg 2194, South Africa
| | - Adewale Oluwaseun Fadaka
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Samantha Meyer
- Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville 7535, South Africa
| | - Jamie Josephs
- Nanobiotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Martin Opiyo Onani
- Organometallics and Nanomaterials, Department of Chemical Sciences, University of the Western Cape, Bellville 7535, South Africa
| | - Mervin Meyer
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
| | - Abram Madimabe Madiehe
- Department of Science and Innovation (DSI)/Mintek Nanotechnology Innovation Centre (NIC), Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
- Nanobiotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
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9
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Trang BTT, Huong NT, Anh NT, Huong PTT, Nhiem NX. Three new rotenoids from the stems of Derris elliptica and their anti-microbial activity. Nat Prod Res 2022:1-8. [PMID: 36214693 DOI: 10.1080/14786419.2022.2132243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Three new rotenoids, named derieliptosides A-C (1-3), were isolated from the stems of Derris elliptica (Wall.) Benth. Their structures were determined by HR-ESI-MS and NMR spectroscopic methods. Absolute configurations of them were elucidated by analysis of ECD spectra in comparison with TD-DFT calculation. Compounds 1-3 inhibited the growth of fungus Candida albicans and selectively inhibited bacterial strains. Of these, compound 1 showed selective inhibition on the growth of Enterococcus faecalis (MIC: 37.5 µM and IC50: 10.6 µM), Staphylococcus aureus (MIC: 75 µM and IC50: 22.7 µM), and C. albicans (MIC: 37.5 µM and IC50: 11.2 µM).
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Affiliation(s)
- Bui Thi Thu Trang
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Vietnam
| | - Nguyen Thi Huong
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Vietnam
| | - Nguyen Tuan Anh
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Vietnam
| | - Phan Thi Thanh Huong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Xuan Nhiem
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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Ahmed J, Mulla MZ, Al-Attar H, AlZuwayed S, Ejaz M, Al-Jassar S, Jacob H, Thomas L, Al-Ruwaih N, Joseph A. Thermal, structural, antimicrobial, and physicochemical characterisation of thyme essential oil encapsulated in β- and γ-cyclodextrin. J Microencapsul 2022; 39:364-379. [PMID: 35713549 DOI: 10.1080/02652048.2022.2090626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The present work aimed to encapsulate the thyme essential oil (TEO) in β-cyclodextrin (BCD) and γ-cyclodextrin (GCD) complexes in two selected cyclodextrin (CD) to TEO ratios (85/15 and 80/20 w/w) and compare the physicochemical, antioxidant, and antimicrobial properties of the encapsulated powders. The inclusion complexes between CD and TEO were prepared by blending aqueous CD and TEO in ethanol followed by freeze-drying. The powder properties were assessed by measuring particle size and microstructure using SEM, FTIR, and XRD. The median values of the particle sizes (GCD: 92.0 ± 4.69 and BCD: 46.2 ± 2.56-mm) significantly influenced the encapsulation efficiency, resulting in a higher encapsulation efficiency of the GCD (92.02 ± 10.79%) than that of the BCD (56.30 ± 12.19%). The encapsulated GCD/TEO (80/20) showed higher antioxidant activity and an antimicrobial inhibitory effect against Listeria monocytogenes and Salmonella enterica sv. typhimurium. Overall, the GCD acts as a superior wall material to the BCD in the TEO encapsulation.
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Affiliation(s)
- Jasim Ahmed
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Mehrajfatema Z Mulla
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Hassan Al-Attar
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Shaikhah AlZuwayed
- Energy and Building Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Mohammed Ejaz
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Sarah Al-Jassar
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Harsha Jacob
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Linu Thomas
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Noor Al-Ruwaih
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
| | - Antony Joseph
- Energy and Building Research Center, Kuwait Institute for Scientific Research, Safat, Kuwait
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Sakdapipanich J, Rodgerd P, Sakdapipanich N. A Low-Density Polyethylene (LDPE)/Macca Carbon Advanced Composite Film with Functional Properties for Packaging Materials. Polymers (Basel) 2022; 14:1794. [PMID: 35566963 DOI: 10.3390/polym14091794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/21/2022] [Accepted: 04/25/2022] [Indexed: 12/04/2022] Open
Abstract
Macca carbon (MC) powder, a biomass derived from macadamia nut cultivation that emits far-infrared (FIR) radiation, was incorporated into low-density polyethylene (LDPE) by melt-compounding and subsequent melt-extrusion operations. Optical microscopy, scanning electron microscopy, differential scanning calorimetry, thermal gravitational analysis, mechanical properties, FIR emission power, barrier properties, transmission properties, antimicrobial activity assays, and storage tests were used to evaluate the manufactured LDPE/MC composite viability sheets for antimicrobial packaging applications. The physical properties and antibacterial activity of composite films were significantly correlated with the amount of MC powder used. The higher the MC powder content in the LDPE/MC composite film, the better the FIR emission ability. Only the MC powder at 0.5% by weight displayed adequate fundamental film characteristics, antibacterial activity, and storage performance, allowing lettuce and strawberries to remain fresh for more than 7 and 5 days, respectively, outside the refrigerator. This study demonstrates that FIR composites made from MC powder are a distinct and potential packaging material for future application in the food industry.
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Zafar A, Yasir M, Alruwaili NK, Imam SS, Alsaidan OA, Alshehri S, Ghoneim MM, Alquraini A, Rawaf A, Ansari MJ, Sara UVS. Formulation of Self-Nanoemulsifying Drug Delivery System of Cephalexin: Physiochemical Characterization and Antibacterial Evaluation. Polymers (Basel) 2022; 14:polym14051055. [PMID: 35267877 PMCID: PMC8915057 DOI: 10.3390/polym14051055] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/15/2022] [Accepted: 02/25/2022] [Indexed: 02/01/2023] Open
Abstract
A cephalexin (CEP) self-nanoemulsifying drug delivery system (SNEDDS) was developed in this study to improve the drug’s oral administration. The CEP-SNEDDS was made utilizing an aqueous titration method employing Lauroglycol 90, Poloxamer 188, and Transcutol-HP. Box-Behnken design (BBD) with three factors at three levels was used for optimization, and their impacts on globule size (nm), transmittance (percent), and emulsification time (s) were assessed. The optimized formulation (Opt-F3) was further tested for zeta potential, refractive index, percent transmittance, thermodynamic stability, in-vitro release, ex vivo permeability, antibacterial activity, and bioavailability. The chosen formulation (Opt-F3) had a globule size of 87.25 ± 3.16 nm, PDI of 0.25, zeta potential of −24.37 mV, self-emulsification duration of 52 ± 1.7 s, and percentage transmittance of 99.13 ± 1.5%, viscosity of 96.26 ± 2.72 cp, and refractive index of 1.29 ± 0.1. It showed a sustained release profile (94.28 ± 5.92 percent in 24 h). The Opt-F3 formulation had 3.95 times the permeability of CEP-dispersion. In comparison to CEP-dispersion, it also demonstrated greater antibacterial efficacy against tested Gram-positive and Gram-negative pathogens. The oral bioavailability of Opt-F3 is 3.48 times higher than that of CEP-dispersion, according to an in-vivo investigation. It has been determined that the prepared CEP-SNEDDS may be an advantageous carrier for CEP delivery.
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Affiliation(s)
- Ameeduzzafar Zafar
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72341, Al-Jouf, Saudi Arabia; (N.K.A.); (O.A.A.)
- Correspondence: (A.Z.); (S.S.I.)
| | - Mohd Yasir
- Department of Pharmacy, College of Health Science, Arsi University, Asella 396, Ethiopia;
| | - Nabil K. Alruwaili
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72341, Al-Jouf, Saudi Arabia; (N.K.A.); (O.A.A.)
| | - Syed Sarim Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
- Correspondence: (A.Z.); (S.S.I.)
| | - Omar Awad Alsaidan
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72341, Al-Jouf, Saudi Arabia; (N.K.A.); (O.A.A.)
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Mohammed M. Ghoneim
- Department of Pharmacy Practice, College of Pharmacy, Almaarefa University, Ad Diriyah 13713, Saudi Arabia;
| | - Ali Alquraini
- Department of Pharmaceutical Chemistry, Faculty of Clinical Pharmacy, Al Baha University, Al Baha 65731, Saudi Arabia;
| | - Alenazy Rawaf
- Department of Medical Laboratory, College of Applied Medical Sciences-Shaqra, Shaqra University, Shaqra 11961, Saudi Arabia;
| | - Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Udai Vir Singh Sara
- Hygia Institute of Pharmaceutical Education & Research, Lucknow 226020, Uttar Pradesh, India;
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Otręba M, Marek Ł, Tyczyńska N, Stojko J, Rzepecka-Stojko A. Bee Venom, Honey, and Royal Jelly in the Treatment of Bacterial Infections of the Oral Cavity: A Review. Life (Basel) 2021; 11:1311. [PMID: 34947842 DOI: 10.3390/life11121311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/14/2021] [Accepted: 11/26/2021] [Indexed: 11/17/2022] Open
Abstract
Oral diseases affect a very large number of people, and the applied pharmacological methods of treatment and/or prevention have serious side effects. Therefore, it is necessary to search for new, safer methods of treatment. Natural bee products, such as honey, royal jelly, and bee venom, can be a promising alternative in the treatment of oral cavity bacterial infections. Thus, we performed an extensive literature search to find and summarize all articles about the antibacterial activity of honey, royal jelly, and bee venom. Our analysis showed that these bee products have strong activity against the bacterial strains causing caries, periodontitis, gingivitis, pharyngitis, recurrent aphthous ulcers, supragingival, and subgingival plaque. An analysis of average MIC values showed that honey and royal jelly have the highest antimicrobial activity against Porphyromonas gingivalis and Fusobacterium nucleatum. In turn, bee venom has an antibacterial effect against Streptococcus mutans. Streptococcus sobrinus and Streptoccus pyogenes were the most resistant species to different types of honey, and royal jelly, respectively. Moreover, these products are safer in comparison to the chemical compounds used in the treatment of oral cavity bacterial infections. Since the antimicrobial activity of bee products depends on their chemical composition, more research is needed to standardize the composition of these compounds before they could be used in the treatment of oral cavity bacterial infections.
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Singla RK, Gupta R, Joon S, Gupta AK, Shen B. Isolation, Docking and In Silico ADME-T Studies of Acacianol: Novel Antibacterial Isoflavone Analogue Isolated from Acacia leucophloea Bark. Curr Drug Metab 2021; 22:893-904. [PMID: 34636294 DOI: 10.2174/1389200222666211005091417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 08/14/2021] [Accepted: 08/16/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND The plant Acacia leucophloea (Roxb.) Willd. of the family Fabaceae is of paramount importance in Indian medicine. OBJECTIVES We sought to evaluate the in vitro anti-microbial activity of A. leucophloea stem bark extract together with its phytochemical characterization and exploration of drug-likeness attributes. METHODS In vitro Kirby-Bauer disc-diffusion and tube-dilution assays were exploited for determining the anti-microbial activity of the methanolic bark extracts against several bacterial test strains. Spectral characterization of the isolated phytoconstituents was performed using spectroscopy techniques viz., UV, IR, 1H NMR, and mass spectroscopy followed by the in silico studies like docking and ADME-T studies. RESULTS The crude methanolic extracts were active against all the bacterial test strains, albeit weakly or moderately, as indicated by the zone of inhibition and minimum inhibitory concentration in the anti-microbial assays. The isolated phytoconstituent was identified to be 3-(3,4-dihydro-5-methoxy-2H-chromen-6-yl)-2,5- dimethoxy-2H-chromen-7-ol (hereby coined as acacianol), a novel isoflavone analog. Acacianol demonstrated a strong binding affinity towards the bacterial DNA gyrase over clorobiocin, especially in the case of cavity 4 with no predicted toxicities in silico, except skin sensitization and chromosome damage.
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Affiliation(s)
- Rajeev K Singla
- Institutes for Systems Genetics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Xinchuan Road 2222, Chengdu, Sichuan, China
| | - Rajesh Gupta
- Sri Sai College of Pharmacy, Dalhousie Road, Badhani, Pathankot, Punjab, India
| | - Shikha Joon
- Institutes for Systems Genetics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Xinchuan Road 2222, Chengdu, Sichuan, China
| | - Arun K Gupta
- Department of Pharmacy, BPS Mahila Vishwavidyalaya, Khanpur Kalan, Sonipat, Haryana, India
| | - Bairong Shen
- Institutes for Systems Genetics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Xinchuan Road 2222, Chengdu, Sichuan, China
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15
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Alnusaire TS. Olive Leaves (Olea europaea L) Extract Loaded Lipid Nanoparticles: Optimization of Processing Parameters by Box-Behnken Statistical Design, in-vitro Characterization, and Evaluation of Anti-oxidant and Anti-microbial Activity. J Oleo Sci 2021; 70:1403-1416. [PMID: 34615828 DOI: 10.5650/jos.ess21149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The present study was aimed to prepare and evaluated solid lipid nanoparticles (SLNs) of olive leaves extract powder (OLP) which contained many anti-oxidant and antimicrobial agents like oleuropein, a natural polyphenol. The major issue concern OLP was the instability due to environmental conditions and hence compromised bioactivity. To overcome this problem, SLNs were designed by hot homogenous followed by sonication technique to protect the drug and improve its antioxidant and antimicrobial activity. Lipids like compritol 888ATO and surfactant like tween 80 were used for the development and stabilization of SLNS and optimization was done by Box-Behnken statistical design (3x3). The optimized batch (F9) showed particle size, entrapment efficiency, PDI, and zeta potential 277.46 nm, 80.48%, 0.275, and -23.18 mV respectively. Optimized formulation (F9) exhibited a sustained release pattern up to 24 h with first-order release kinetic (R2 = 0.9984) and the mechanism of drug release was found to be Fickian diffusion type (n = 0.441). Upon the stability study, it could be found that SLNs formulation was stable. Anti-oxidation and anti-microbial studies were conducted on optimized formulation and findings suggested that SLNs showed an improved radical scavenging activity and anti-microbial activity against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa) bacteria. Finally, it was concluded that developed SLNs were able to protect and suitable for the delivery of OLP.
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Affiliation(s)
- Taghreed S Alnusaire
- Biology Department, College of Science, Jouf University.,Olive Research Center, Jouf University
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Altundağ EM, Toprak K, Şanlıtürk G, Güran M, Özbilenler C, Kerküklü NR, Yılmaz AM, Yalçın AS. Synergistic Combination of Histone Deacetylase Inhibitor Suberoylanilide Hydroxamic Acid and Natural Flavonoid Curcumin Exhibits Anticancer and Antibacterial Activity. Anticancer Agents Med Chem 2021; 21:1301-1308. [PMID: 33023457 DOI: 10.2174/1871520620666201006141317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/29/2020] [Accepted: 09/06/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE Curcumin is an effective anti-cancer agent used in thyroid cancer treatments. However, its use in clinical applications is limited due to low solubility and bioavailability. In this study, a novel combination strategy was applied by combining curcumin with Suberoylanilide Hydroxamic Acid (SAHA) to increase both bioavailability of curcumin and the efficiency of SAHA, which have limited efficiency when used alone. METHODS MTT assay was used to determine the cell viability of B-CPAP cells upon treatment with SAHA, curcumin and their combinations. Synergistic interactions between two agents were analyzed by Calcusyn software. Apoptosis and cell cycle assays were measured by flow cytometry. Expressions of apoptotic and cell cyclerelated proteins (PARP, P21/CDKN1A/WAF1, P27/KIP1) were examined by western blot analysis. Broth microdilution assay was performed to determine Minimum Inhibitory Concentration (MIC) values against S. aureus. RESULTS Based on MTT assay, IC50 values for SAHA and curcumin were determined as 0.91μM and 20.97μM, respectively. The combination index CI value was determined as 0.891 in B-CPAP cells, which demonstrate synergistic activity. The apoptotic effect was achieved by combination treatment (51.85%) on B-CPAP cells using half of the dose required for SAHA and curcumin alone. Combination treatment showed a significant increase in the percentage of B-CPAP cells in the S-phase due to cell arrest. Cleaved-PARP, P21/CDKN1A/ WAF1 and P27/KIP1 protein expressions were upregulated. Curcumin was found to have better anti-microbial activity than SAHA as having a lower MIC value, and checkerboard synergy analysis revealed that the two compounds co-operate synergistically for the in vitro killing of S. aureus. CONCLUSION In the present study, synergistic combinations of SAHA and curcumin were shown to have both anti-cancer and antibacterial activities that would provide a novel thyroid cancer treatment strategy.
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Affiliation(s)
- Ergül M Altundağ
- Department of Medical Biochemistry, Faculty of Medicine, Eastern Mediterranean University, North Cyprus via Mersin 10, 99628, Turkey
| | - Kübra Toprak
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, Istanbul, Turkey
| | - Gizem Şanlıtürk
- Department of Medical Microbiology, Faculty of Medicine, Eastern Mediterranean University, North Cyprus via Mersin 10, 99628, Turkey
| | - Mümtaz Güran
- Department of Medical Microbiology, Faculty of Medicine, Eastern Mediterranean University, North Cyprus via Mersin 10, 99628, Turkey
| | - Cahit Özbilenler
- Department of Chemistry, Faculty of Arts and Sciences, Eastern Mediterranean University, North Cyprus via Mersin 10, 99628, Turkey
| | - Namık R Kerküklü
- Department of Chemistry, Faculty of Arts and Sciences, Eastern Mediterranean University, North Cyprus via Mersin 10, 99628, Turkey
| | - Ayşe M Yılmaz
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, Istanbul, Turkey
| | - Ahmet S Yalçın
- Department of Biochemistry, School of Medicine/Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, Istanbul, Turkey
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Blinova E, Pakhomov D, Shimanovsky D, Kilmyashkina M, Mazov Y, Demura T, Drozdov V, Blinov D, Deryabina O, Samishina E, Butenko A, Skachilova S, Sokolov A, Vasilkina O, Alkhatatneh BA, Vavilova O, Sukhov A, Shmatok D, Sorokvasha I, Tumutolova O, Lobanova E. Cerium-Containing N-Acetyl-6-Aminohexanoic Acid Formulation Accelerates Wound Reparation in Diabetic Animals. Biomolecules 2021; 11:biom11060834. [PMID: 34205061 PMCID: PMC8230275 DOI: 10.3390/biom11060834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/29/2021] [Accepted: 06/01/2021] [Indexed: 01/05/2023] Open
Abstract
Background: The main goal of our study was to explore the wound-healing property of a novel cerium-containing N-acethyl-6-aminohexanoate acid compound and determine key molecular targets of the compound mode of action in diabetic animals. Methods: Cerium N-acetyl-6-aminohexanoate (laboratory name LHT-8-17) as a 10 mg/mL aquatic spray was used as wound experimental topical therapy. LHT-8-17 toxicity was assessed in human skin epidermal cell culture using (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. A linear wound was reproduced in 18 outbred white rats with streptozotocin-induced (60 mg/kg i.p.) diabetes; planar cutaneous defect was modelled in 60 C57Bl6 mice with streptozotocin-induced (200 mg/kg i.p.) diabetes and 90 diabetic db/db mice. Firmness of the forming scar was assessed mechanically. Skin defect covering was histologically evaluated on days 5, 10, 15, and 20. Tissue TNF-α, IL-1β and IL-10 levels were determined by quantitative ELISA. Oxidative stress activity was detected by Fe-induced chemiluminescence. Ki-67 expression and CD34 cell positivity were assessed using immunohistochemistry. FGFR3 gene expression was detected by real-time PCR. LHT-8-17 anti-microbial potency was assessed in wound tissues contaminated by MRSA. Results: LHT-8-17 4 mg twice daily accelerated linear and planar wound healing in animals with type 1 and type 2 diabetes. The formulated topical application depressed tissue TNF-α, IL-1β, and oxidative reaction activity along with sustaining both the IL-10 concentration and antioxidant capacity. LHT-8-17 induced Ki-67 positivity of fibroblasts and pro-keratinocytes, upregulated FGFR3 gene expression, and increased tissue vascularization. The formulation possessed anti-microbial properties. Conclusions: The obtained results allow us to consider the formulation as a promising pharmacological agent for diabetic wound topical treatment.
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MESH Headings
- Administration, Topical
- Aminocaproates/administration & dosage
- Aminocaproates/metabolism
- Animals
- Cerium/administration & dosage
- Cerium/metabolism
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 1/drug therapy
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Female
- Humans
- Male
- Mice
- Mice, Inbred C57BL
- Rats
- Wound Healing/drug effects
- Wound Healing/physiology
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Affiliation(s)
- Ekaterina Blinova
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
- Department of Morphology, National Research Nuclear University MEPHI, 31 Kashirskoe Highway, 115409 Moscow, Russia
| | - Dmitry Pakhomov
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Denis Shimanovsky
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Marina Kilmyashkina
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Yan Mazov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Tatiana Demura
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Vladimir Drozdov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Dmitry Blinov
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
- Correspondence: ; Tel.: +7-927-197-1422
| | - Olga Deryabina
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Elena Samishina
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
| | - Aleksandra Butenko
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Sofia Skachilova
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
| | - Alexey Sokolov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Olga Vasilkina
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Bashar A. Alkhatatneh
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Olga Vavilova
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Andrey Sukhov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Daniil Shmatok
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Ilya Sorokvasha
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
| | - Oxana Tumutolova
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Elena Lobanova
- Department of Pharmacology, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, 20/1 Delegatskaya Street, 127473 Moscow, Russia;
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Rahne M, Basic A, Almståhl A. Explorative study on Lactobacillus species and their acid-producing capacity and anti-microbial activity in head and neck cancer patients. Clin Exp Dent Res 2021; 7:924-933. [PMID: 33787075 PMCID: PMC8543467 DOI: 10.1002/cre2.426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE To determine acid-producing capacity and anti-microbial activity of Lactobacillus species collected pretreatment and post treatment in head and neck cancer patients. MATERIAL AND METHODS Lactobacillus isolates from 21 patients pretreatment and post treatment were identified using molecular methods. The patients' stimulated salivary secretion was determined pretreatment, and 6 and 12 months post treatment and caries lesions/new filled surfaces registered at 24 months post treatment. The acid-producing capacity of the Lactobacillus isolate was analyzed using a colorimetric fermentation test in microtiter plates. The anti-microbial activity of the isolates against Streptococcus mutans associated with caries, and against the mucosal pathogens Staphylococcus aureus, Candida albicans, and Enterococcus faecalis was analyzed by determining inhibitory zones on agar plates. RESULTS The most frequent species were L. paracasei (n = 21), L. casei/rhamnosus (n = 17) and L. fermentum (n = 10). Sixty-seven percent of the patients harbored L. paracasei either at 6 or 12 months post radiotherapy. The corresponding figures for L. casei/rhamnosus and L. fermentum were 62% and 33%. L. paracasei strains showed the best acid-producing capacity and L. fermentum strains the lowest. Strong acid-producing capacity was most common among isolates collected at 6 months post treatment. Seventy-two percent of the strains showed an anti-microbial activity against S. mutans, one strain against S. aureus and none against C. albicans or E. faecalis. CONCLUSION The most frequent species isolated from head and neck cancer patients both pretreatment and post treatment were L. paracasei, L. casei/rhamnosus, and L. fermentum. L. paracasei showed the best acid-producing capacity and the highest proportion with anti-microbial activity against S. mutans.
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Affiliation(s)
- Matilda Rahne
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Amina Basic
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Annica Almståhl
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
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Terlizzi M, Colarusso C, Di Maio U, Bagnulo A, Pinto A, Sorrentino R. Antioxidant and antimicrobial properties of Pelargonium sidoides DC and lactoferrin combination. Biosci Rep 2020; 40:BSR20203284. [PMID: 33119061 DOI: 10.1042/BSR20203284] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 01/01/2023] Open
Abstract
Lactoferrin (LAT), a multifunctional protein involved in numerous physiological functions, and the medicinal plant Pelargonium sidoides DC (PEL) have been described for their anti-inflammatory properties. Because the main advantage of natural products consists in administering them in combination rather than as single compound, we aimed to understand whether the combination of PEL and LAT, herein PELIRGOSTIM, could still prove beneficial or additive/synergistic activities during inflammatory conditions. To pursue this goal, we used macrophagic cells (J774.1) and treated them with PEL and LAT in a concentration-dependent manner. We found that PELIRGOSTIM was able to reduce the levels of reactive oxygen species (ROS) and nitrite, effects that were correlated to the release of lower levels of IL-1β after LPS treatment. In addition, the combination of PEL and LAT showed bacteriostatic activities against Staphylococcus aureus and Escherichia coli which had limited growth starting from 5 hours up to 20 hours. This effect was stronger than that observed for penicillin/streptomycin. Our results provide PELIRGOSTIM as an innovative combination of natural products capable to prevent inflammation-, oxidative stress- and microbial-related disorders.
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Muta T, Parikh A, Kathawala K, Haidari H, Song Y, Thomas J, Garg S. Quality-by-Design Approach for the Development of Nano-Sized Tea Tree Oil Formulation-Impregnated Biocompatible Gel with Antimicrobial Properties. Pharmaceutics 2020; 12:E1091. [PMID: 33202841 PMCID: PMC7698170 DOI: 10.3390/pharmaceutics12111091] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/05/2020] [Accepted: 11/07/2020] [Indexed: 01/30/2023] Open
Abstract
Despite the promising properties of tea tree oil (TTO) as potential therapeutics for several superficial skin conditions, certain limitations such as physical instability and skin irritation have restricted its widespread use. This study focuses on developing a rationally designed lipid-based nanoformulation (TTO-LNF) in accordance with the US Food and Drug Administration standard using a well-recognized quality-by-design (QbD) approach. Using a mixture experimental design, TTO-LNF has been optimized with 5% TTO, 10% surfactant, 5% co-surfactant, and 80% water, which showed a 14.4 ± 4.4 nm droplet size and 0.03 ± 0.01 polydispersity index (PDI). To ease the topical administration, the TTO-LNF gel formulation was further developed using xanthan gum to achieve the desired viscosity and form a gel. The in vitro antibacterial tests of TTO-LNF showed promising inhibitory effects toward both Gram-negative and Gram-positive bacteria. In fact, a complete growth inhibition of S. epidermidis was observed when exposed to TTO-LNF and TTO-LNF gel for 24 h, showing better activity than antibiotic kanamycin (25 µg/mL). Additionally, the in vitro release study showed a sustained release profile with a 50% release in 24 h, which could be beneficial to reduce the toxicity and thereby improve the therapeutic efficacy for long-acting applications. Furthermore, the formulations were remarkably stable at 40 °C/75% Relative humidity (RH) for at least 4 weeks. Therefore, this study presents a promising strategy to develop a biocompatible and stable formulation that can be used for the topical treatment of skin infections.
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Affiliation(s)
- Thabata Muta
- Pharmaceutical Innovation and Development Group (PIDG), UniSA Clinical & Health Science, University of South Australia, City West Campus, North Terrace, Adelaide, SA 5000, Australia; (T.M.); (A.P.); (K.K.); (H.H.); (Y.S.)
| | - Ankit Parikh
- Pharmaceutical Innovation and Development Group (PIDG), UniSA Clinical & Health Science, University of South Australia, City West Campus, North Terrace, Adelaide, SA 5000, Australia; (T.M.); (A.P.); (K.K.); (H.H.); (Y.S.)
| | - Krishna Kathawala
- Pharmaceutical Innovation and Development Group (PIDG), UniSA Clinical & Health Science, University of South Australia, City West Campus, North Terrace, Adelaide, SA 5000, Australia; (T.M.); (A.P.); (K.K.); (H.H.); (Y.S.)
| | - Hanif Haidari
- Pharmaceutical Innovation and Development Group (PIDG), UniSA Clinical & Health Science, University of South Australia, City West Campus, North Terrace, Adelaide, SA 5000, Australia; (T.M.); (A.P.); (K.K.); (H.H.); (Y.S.)
| | - Yunmei Song
- Pharmaceutical Innovation and Development Group (PIDG), UniSA Clinical & Health Science, University of South Australia, City West Campus, North Terrace, Adelaide, SA 5000, Australia; (T.M.); (A.P.); (K.K.); (H.H.); (Y.S.)
| | - Jackson Thomas
- Faculty of Health, University of Canberra, Canberra, ACT 2617, Australia;
| | - Sanjay Garg
- Pharmaceutical Innovation and Development Group (PIDG), UniSA Clinical & Health Science, University of South Australia, City West Campus, North Terrace, Adelaide, SA 5000, Australia; (T.M.); (A.P.); (K.K.); (H.H.); (Y.S.)
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Mughal EU, Mirzaei M, Sadiq A, Fatima S, Naseem A, Naeem N, Fatima N, Kausar S, Altaf AA, Zafar MN, Khan BA. Terpyridine-metal complexes: effects of different substituents on their physico-chemical properties and density functional theory studies. R Soc Open Sci 2020; 7:201208. [PMID: 33391801 PMCID: PMC7735333 DOI: 10.1098/rsos.201208] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/07/2020] [Indexed: 06/12/2023]
Abstract
A series of different substituted terpyridine (tpy)-based ligands have been synthesized by Kröhnke method. Their binding behaviour was evaluated by complexing them with Co(II), Fe(II) and Zn(II) ions, which resulted in interesting coordination compounds with formulae, [Zn(tpy)2]PF6, [Co(tpy)2](PF6)2, [Fe(tpy)2](PF6)2 and interesting spectroscopic properties. Their absorption and emission behaviours in dilute solutions were investigated in order to explain structure-property associations and demonstrate the impact of different aryl substituents on the terpyridine scaffold as well as the role of the metal on the complexes. Photo-luminescence analysis of the complexes in acetonitrile solution revealed a transition from hypsochromic to bathochromic shift. All the compounds displayed remarkable photo-luminescent properties and various maximum emission peaks owing to the different nature of the functional groups. Furthermore, the anti-microbial potential of ligands and complexes was evaluated with docking analyses carried out to investigate the binding affinity of terpyridine-based ligands along with corresponding proteins (shikimate dehydrogenase and penicillin-binding protein) binding sites. To obtain further insight into molecular orbital distributions and spectroscopic properties, density functional theory calculations were performed for representative complexes. The photophysical activity and interactions between chromophore structure and properties were both investigated experimentally as well as theoretically.
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Affiliation(s)
| | - Masoud Mirzaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad, Iran
| | - Amina Sadiq
- Department of Chemistry, Government College Women University, Sialkot 51300, Pakistan
| | - Sana Fatima
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Ayesha Naseem
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Nafeesa Naeem
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Nighat Fatima
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Samia Kausar
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry, University of Gujarat, Gujarat 50700, Pakistan
- Department of Chemistry, University of Okara, Okara 56300, Pakistan
| | | | - Bilal Ahmad Khan
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
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Chiavaroli A, Sinan KI, Zengin G, Mahomoodally MF, Bibi Sadeer N, Etienne OK, Cziáky Z, Jekő J, Glamočlija J, Soković M, Recinella L, Brunetti L, Leone S, Abdallah HH, Angelini P, Angeles Flores G, Venanzoni R, Menghini L, Orlando G, Ferrante C. Identification of Chemical Profiles and Biological Properties of Rhizophora racemosa G. Mey. Extracts Obtained by Different Methods and Solvents. Antioxidants (Basel) 2020; 9:antiox9060533. [PMID: 32570898 PMCID: PMC7346144 DOI: 10.3390/antiox9060533] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/12/2020] [Accepted: 06/16/2020] [Indexed: 12/17/2022] Open
Abstract
Mangrove forests exemplify a multifaceted ecosystem since they do not only play a crucial ecological role but also possess medicinal properties. Methanolic, ethyl acetate and aqueous leaf and bark extracts were prepared using homogenizer-assisted extraction (HAE), infusion and maceration (with and without stirring). The different extracts were screened for phytochemical profiling and antioxidant capacities in terms of radical scavenging (DPPH, ABTS), reducing potential (CUPRAC, FRAP), total antioxidant capacity and chelating power. Additionally, R. racemosa was evaluated for its anti-diabetic (α-amylase, α-glucosidase), anti-tyrosinase and anti-cholinesterase (AChE, BChE) activities. Additionally, antimycotic and antibacterial effects were investigated against Eescherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, Listeria monocytogenes, Enterobacter cloacae, Bacillus cereus, Micrococcus luteus, Staphylococcus aureus, Aspergillus fumigatus, Aspergillus niger, Trichoderma viride, Penicillium funiculosum, Penicillium ochrochloron and Penicillium verrucosum. Finally, based on phytochemical fingerprint, in silico studies, including bioinformatics, network pharmacology and docking approaches were conducted to predict the putative targets, namely tyrosinase, lanosterol-14-α-demethylase and E. coli DNA gyrase, underlying the observed bio-pharmacological and microbiological effects. The methanolic leave and bark extracts (prepared by both HAE and maceration) abounded with phenolics, flavonoids, phenolic acids and flavonols. Results displayed that both methanolic leaf and bark extracts (prepared by HAE) exhibited the highest radical scavenging, reducing potential and total antioxidant capacity. Furthermore, our findings showed that the highest enzymatic inhibitory activity recorded was with the tyrosinase enzyme. In this context, bioinformatics analysis predicted putative interactions between tyrosinase and multiple secondary metabolites including apigenin, luteolin, vitexin, isovitexin, procyanidin B, quercetin and methoxy-trihydroxyflavone. The same compounds were also docked against lanosterol-14α-demethylase and E. Coli DNA gyrase, yielding affinities in the submicromolar–micromolar range that further support the observed anti-microbial effects exerted by the extracts. In conclusion, extracts of R. racemosa may be considered as novel sources of phytoanti-oxidants and enzyme inhibitors that can be exploited as future first-line pharmacophores.
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Affiliation(s)
- Annalisa Chiavaroli
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (A.C.); (L.R.); (L.B.); (S.L.); (L.M.); (C.F.)
| | - Koaudio Ibrahime Sinan
- Department of Biology, Science Faculty, Selcuk Universtiy, Campus Konya, 42130 Konya, Turkey;
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk Universtiy, Campus Konya, 42130 Konya, Turkey;
- Correspondence: (G.Z.); (P.A.); (G.O.)
| | - Mohamad Fawzi Mahomoodally
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam; or
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit 230, Mauritius;
| | - Nabeelah Bibi Sadeer
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit 230, Mauritius;
| | - Ouattara Katinan Etienne
- Laboratoire de Botanique, UFR Biosciences, Université Félix Houphouët-Boigny, 01 Abidjan, Ivory Coast;
| | - Zoltán Cziáky
- Agricultural and Molecular Research and Service Institute, University of Nyíregyháza, 4400 Nyíregyháza, Hungary; (Z.C.); (J.J.)
| | - József Jekő
- Agricultural and Molecular Research and Service Institute, University of Nyíregyháza, 4400 Nyíregyháza, Hungary; (Z.C.); (J.J.)
| | - Jasmina Glamočlija
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11000 Belgrade, Serbia; (J.G.) (M.S.)
| | - Marina Soković
- Department of Plant Physiology, Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11000 Belgrade, Serbia; (J.G.) (M.S.)
| | - Lucia Recinella
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (A.C.); (L.R.); (L.B.); (S.L.); (L.M.); (C.F.)
| | - Luigi Brunetti
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (A.C.); (L.R.); (L.B.); (S.L.); (L.M.); (C.F.)
| | - Sheila Leone
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (A.C.); (L.R.); (L.B.); (S.L.); (L.M.); (C.F.)
| | - Hassan H. Abdallah
- Chemistry Department, College of Education, Salahaddin University-Erbil, Erbil 44001, Iraq;
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, USM, Penang 11800, Malaysia
| | - Paola Angelini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100 Perugia, Italy; (G.A.F.); (R.V.)
- Correspondence: (G.Z.); (P.A.); (G.O.)
| | - Giancarlo Angeles Flores
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100 Perugia, Italy; (G.A.F.); (R.V.)
| | - Roberto Venanzoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100 Perugia, Italy; (G.A.F.); (R.V.)
| | - Luigi Menghini
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (A.C.); (L.R.); (L.B.); (S.L.); (L.M.); (C.F.)
| | - Giustino Orlando
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (A.C.); (L.R.); (L.B.); (S.L.); (L.M.); (C.F.)
- Correspondence: (G.Z.); (P.A.); (G.O.)
| | - Claudio Ferrante
- Department of Pharmacy, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (A.C.); (L.R.); (L.B.); (S.L.); (L.M.); (C.F.)
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Terlizzi M, Colarusso C, Di Maio U, Pinto A, Sorrentino R. The combination of N-Acetyl-L-Cysteine, Pelargonium sidoides and Justicia adhatoda (NAXX) exerts bacteriostatic activity against S. aureus and E. coli. Nat Prod Res 2020; 35:5360-5363. [PMID: 32406252 DOI: 10.1080/14786419.2020.1761359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Many herbal agents and medicinal plants have provided clinical interest due to their therapeutic properties, availability and lower side effects. The aim of this study was to understand the anti-bacterial activity of the combination of Pelargonium sidoides (PEL), Justicia adhatoda (ADH) and N-Acetyl-L-Cysteine (NAC) (NAXX). We found that NAXX had strong and long-term bacteriostatic activity, which was related to its anti-oxidant activity. Our data demonstrate that NAXX is an innovative medicinal plant-derived strategy to manage of oxidative stress- and microbial-based diseases.
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Affiliation(s)
- Michela Terlizzi
- Department of Pharmacy, University of Salerno, Fisciano, SA, Italy.,ImmunePharma srl, Fisciano, SA, Italy
| | - Chiara Colarusso
- Department of Pharmacy, University of Salerno, Fisciano, SA, Italy.,PhD Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, Fisciano, SA, Italy.,ImmunePharma srl, Fisciano, SA, Italy
| | | | - Aldo Pinto
- Department of Pharmacy, University of Salerno, Fisciano, SA, Italy.,ImmunePharma srl, Fisciano, SA, Italy
| | - Rosalinda Sorrentino
- Department of Pharmacy, University of Salerno, Fisciano, SA, Italy.,ImmunePharma srl, Fisciano, SA, Italy
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Matsuo H, Noguchi Y, Miyano R, Higo M, Nonaka K, Sunazuka T, Takahashi Y, Ōmura S, Nakashima T. Thioporidiols A and B: Two New Sulfur Compounds Discovered by Molybdenum-Catalyzed Oxidation Screening from Trichoderma polypori FKI-7382. Antibiotics (Basel) 2020; 9:antibiotics9050236. [PMID: 32392762 PMCID: PMC7277456 DOI: 10.3390/antibiotics9050236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/30/2020] [Accepted: 05/02/2020] [Indexed: 01/31/2023] Open
Abstract
Two new sulfur compounds, designated thioporidiol A (1) and B (2), were discovered by the MoS-screening program from a culture broth of Trichodermapolypori FKI-7382. The structures of 1 and 2 were determined as C13 lipid structures with an N-acetylcysteine moiety. The relative configuration at the C-5 and C-6 position of 1 was determined by the derivatives of α-methoxy-α-phenylacetic acid diesters, and the absolute configuration of the N-acetylcysteine moiety was determined by advanced Marfey’s analysis. Compounds 1 and 2 were evaluated for anti-microbial, cytotoxic and anti-malarial activities. Compound 2 exhibited anti-microbial activity against Candida albicans ATCC 64548.
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Affiliation(s)
- Hirotaka Matsuo
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Yoshihiko Noguchi
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Rei Miyano
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Mayuka Higo
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Kenichi Nonaka
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Toshiaki Sunazuka
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Yōko Takahashi
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Satoshi Ōmura
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Takuji Nakashima
- Kitasato Institute for Life Sciences, Kitasato University, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo 108-8641, Japan
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Nazari M, Smith DL. A PGPR-Produced Bacteriocin for Sustainable Agriculture: A Review of Thuricin 17 Characteristics and Applications. Front Plant Sci 2020; 11:916. [PMID: 32733506 PMCID: PMC7358586 DOI: 10.3389/fpls.2020.00916] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/04/2020] [Indexed: 05/08/2023]
Abstract
A wide range of prokaryotes produce and excrete bacteriocins (proteins with antimicrobial activity) to reduce competition from closely related strains. Application of bacteriocins is of great importance in food industries, while little research has been focused on the agricultural potential of bacteriocins. A number of bacteriocin producing bacteria are members of the phytomicrobiome, and some strains are plant growth promoting rhizobacteria (PGPR). Thuricin 17 is a single small peptide with a molecular weight of 3.162 kDa, a subclass IId bacteriocin produced by Bacillus thuringiensis NEB17, isolated from soybean nodules. It is either cidal or static to a wide range of prokaryotes. In this way, it removes key competition from the niche space of the producer organism. B. thuringiensis NEB17 was isolated from soybean root nodules, and thus is a member of the phytomicrobiome. Interestingly, thuricin 17 is not active against a wide range of rhizobial strains involved in symbiotic nitrogen fixation with legumes or against other PGPR. In addition, it stimulates plant growth, particularly in the presence of abiotic stresses. The stresses it assists with include key ones associated with climate change (drought, high temperature, and soil salinity). Hence, in the presence of stress, it increases the size of the overall niche space, within plant roots, for B. thuringiensis NEB17. Through its anti-microbial activity, it could also enhance plant growth via control of specific plant pathogens. None of the isolated bacteriocins have been examined as broadly as thuricin 17 on plant growth promotion. Thus, this review focuses on the effect of thuricin 17 as a microbe to plant signal that assists crop plants in managing stress and making agricultural systems more climate change resilient.
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Bhatnagar S, Kobori T, Ganesh D, Ogawa K, Aoyagi H. Biosynthesis of Silver Nanoparticles Mediated by Extracellular Pigment from Talaromyces purpurogenus and Their Biomedical Applications. Nanomaterials (Basel) 2019; 9:E1042. [PMID: 31330905 DOI: 10.3390/nano9071042] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/18/2019] [Accepted: 07/18/2019] [Indexed: 12/17/2022]
Abstract
In recent years, green syntheses have been researched comprehensively to develop inexpensive and eco-friendly approaches for the generation of nanoparticles. In this context, plant and microbial sources are being examined to discover potential reducing agents. This study aims to utilize an extracellular pigment produced by Talaromyces purpurogenus as a prospective reducing agent to synthesize silver nanoparticles (AgNPs). Biosynthesized AgNPs were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), electron probe micro analyser (EPMA), and zeta potential. The pigment functional groups involved in the generation of AgNPs were investigated using Fourier transform infrared spectroscopy. TEM images showed that the generated nanoparticles were spherical, hexagonal, rod-shaped, and triangular-shaped with a particle size distribution from 4 to 41 nm and exhibited a surface plasmon resonance at around 410 nm. DLS and zeta potential studies revealed that the particles were polydispersed and stable (−24.8 mV). EPMA confirmed the presence of elemental silver in the samples. Biosynthesized AgNPs exhibited minimum inhibitory concentrations of 32 and 4 μg/mL against E. coli and S. epidermidis, respectively. Further, cytotoxicity of the AgNPs was investigated against human cervical cancer (HeLa), human liver cancer (HepG2), and human embryonic kidney (HEK-293) cell lines using 5-fluorouracil as a positive control. A significant activity was recorded against HepG2 cell line with a half-maximal inhibitory concentration of 11.1 μg/mL.
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Ünver H, Berber B, Demirel R, Koparal AT. Design, Synthesis, Anti-Proliferative, Anti-microbial, Anti-Angiogenic Activity and In Silico Analysis of Novel Hydrazone Derivatives. Anticancer Agents Med Chem 2019; 19:1658-1669. [PMID: 30887930 DOI: 10.2174/1871520619666190318125824] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/02/2019] [Accepted: 03/04/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Cancer is the second leading cause of death globally. Hydrazone and hydrazone derivatives have high activity, and for this reason, these compound are greatly used by researchers to synthesize new anti-cancer drug. The aim of this research work is to synthesize novel anticancer agents. METHODS New hydrazone derivatives were synthesized via a reaction between 3-formylphenyl methyl carbonate and benzhydrazide, 4-methylbenzoic hydrazide, 4-tert-butylbenzoic hydrazide, 4-nitrobenzoic hydrazide and 3- methoxybenzoic hydrazide, and were successfully characterized using elemental analysis, 1H-NMR, 13C-NMR, FT-IR and LC-MS techniques. The synthesized compounds were evaluated for their antimicrobial (some grampositive and -negative bacteria, filamentous fungi and yeasts), anti-proliferative (T47D and HCC1428-breast cancer cells) and anti-angiogenic (HUVEC-endothelial cells) activities. The anti-proliferative activities of the hydrazone compounds R1-R5 were studied on these cell lines by MTT assay. The anti-angiogenic potential of the compounds was determined by the endothelial tube formation assay. To identify structural features related to the anti-proliferative activity of these compounds, 2D-QSAR was performed. RESULT The results indicated that compound R3 exhibited strong anti-angiogenic and anti-proliferative activity on breast cancer cell lines and healthy cell lines. Also, this compound; possessing a tertiary butyl moiety on the hydrazine, exhibited the highest inhibitory effect against all tested microorganisms; in particular, it inhibited Candida albicans at a lower concentration than ketoconazole. Among the investigated compounds, those bearing methyl, tertiary butyl (compound R2, R3) and methoxy (compound R5) moiety were found to be more successful anticandidal derivatives than standard antifungal antibiotics. The QSAR analysis suggested that the tumor specificity of the hydrazone correlated with their molecular weight, lipophilicity, molar refractivity, water solubility, DipolHybrid:(MOPAC) and ExchangeEnergy:(MOPAC). Absorption, Distribution, Metabolism and Elimination (ADME) analysis of the hydrazone compounds showed that they have favorable pharmacokinetic and drug-likeness properties. The ADME results clarify that R3 is the best compound in terms of pharmacokinetic properties. In contrast to other compounds; target prediction analysis of the compound R3 showed inhibitory activity on estrogen-related receptor alpha transcription factor (ESRRA). The target prediction analysis was supported by molinspiration bioactivity score. CONCLUSION The R3 compound is considered to be an important candidate for future studies with its suitability for the Lipinski's rule of five for drug-likeness, and effective in vitro and in silico results.
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Affiliation(s)
- Hakan Ünver
- Chemistry Department, Faculty of Science, Eskisehir Technical University, 26470, Eskisehir, Turkey
| | - Burak Berber
- Biology Department, Faculty of Science, Eskisehir Technical University, 26470, Eskisehir, Turkey
| | - Rasime Demirel
- Biology Department, Faculty of Science, Eskisehir Technical University, 26470, Eskisehir, Turkey
| | - Ayşe T Koparal
- Biology Department, Faculty of Science, Eskisehir Technical University, 26470, Eskisehir, Turkey
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Nayak S, Gaonkar SL. A Review on Recent Synthetic Strategies and Pharmacological Importance of 1,3-Thiazole Derivatives. Mini Rev Med Chem 2019; 19:215-238. [PMID: 30112994 DOI: 10.2174/1389557518666180816112151] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 04/19/2018] [Accepted: 05/01/2018] [Indexed: 12/17/2022]
Abstract
Thiazole is the most common heterocyclic compound in heterocyclic chemistry and in drug design. Presence of several reaction sites in the thiazole moiety extends their range of applications and leads to new solutions for challenges in synthetic and medicinal chemistry. Thiazole derivatives are widely used as bioactive agents, liquid crystals, sensors, catalysts, etc. The motivating molecular architecture of 1,3-thiazoles makes them suitable moieties for drug development. In this review, our aim is to corroborate the recent data available on various synthetic strategies and biological properties of 1,3- thiazole derivatives.
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Affiliation(s)
- Swarnagowri Nayak
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Santhosh L Gaonkar
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
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Sudharshana TN, Venkatesh HN, Nayana B, Manjunath K, Mohana DC. Anti-microbial and anti-mycotoxigenic activities of endophytic Alternaria alternata isolated from Catharanthus roseus (L.) G. Don.: molecular characterisation and bioactive compound isolation. Mycology 2019; 10:40-48. [PMID: 30834151 PMCID: PMC6394321 DOI: 10.1080/21501203.2018.1541933] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 10/23/2018] [Indexed: 01/15/2023] Open
Abstract
The present study investigated the anti-microbial and anti-mycotoxigenic activities of the ethyl acetate extract (EA) and a bioactive compound obtained from an endophytic fungus Alternaria alternata isolated from Catharanthus roseus leaves. A. alternata was identified using PCR-based 5.8S rDNA sequencing. The EA and bioactive compound, p-Coumaric acid (PC), showed concentration-dependent broad-spectrum anti-microbial activity against the tested bacteria, yeast, and fungi with MICs ranging from 7.8 to 250 µg/mL. The in vitro production of aflatoxin B1 (AFB1) from Aspergillus flavus and fumonisin B1 (FB1) from Fusarium verticillioides was completely inhibited by EA and PC at 400 µg/mL. The synthesis of the membrane-bound ergosterol from A. flavus and F. verticillioides was strongly inhibited by PC at 200 µg/mL. The EA and PC were found to show significant anti-microbial and anti-mycotoxigenic activities, hence, they could be explored as protective agents for preventing microbial deterioration and mycotoxins accumulation in food and feedstuffs during pre- and post-harvest and storage.
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Affiliation(s)
- T. N. Sudharshana
- Department of Microbiology and Biotechnology, Bangalore University, Bengaluru, India
| | - H. N. Venkatesh
- Department of Microbiology and Biotechnology, Bangalore University, Bengaluru, India
| | - Borah Nayana
- Department of Microbiology and Biotechnology, Bangalore University, Bengaluru, India
| | - K. Manjunath
- Department of Microbiology and Biotechnology, Bangalore University, Bengaluru, India
| | - D. C. Mohana
- Department of Microbiology and Biotechnology, Bangalore University, Bengaluru, India
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Mustafa H, Ismail N, Wahab WNAWA. Anti-microbial Activity of Aqueous Quercus infectoria Gall Extract against Pathogenic Leptospira. Malays J Med Sci 2018; 25:42-50. [PMID: 30914846 PMCID: PMC6422538 DOI: 10.21315/mjms2018.25.4.4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/22/2018] [Indexed: 01/18/2023] Open
Abstract
Background Quercus infectoria gall extract is known to have broad spectrum anti-microbial activity in vitro. This study was conducted to determine the anti-microbial activity of Q. infectoria gall extract against pathogenic Leptospira and to evaluate the morphological changes of extract-treated cells using a scanning electron microscope (SEM). Methods A two-fold serial microdilution broth assay was used to determine the minimum inhibitory concentration (MIC) of aqueous Q. infectoria gall extract against the L. interrogans serovar Javanica and the L. interrogans serovar Icterohaemorrhagiae, at concentrations ranging from 4.00 mg/mL to 0.0078 mg/mL. The minimum bactericidal concentration (MBC) was determined by sub-culturing the broth from the microtiter plate wells that showed no apparent growth or turbidity to the freshly prepared Ellinghausen-McCullough-Johnson-Harris (EMJH) broth media, and it was subsequently observed under a dark field microscope following three weeks of incubation for purposes of growth detection. The cell morphology of both extract-treated and untreated L. interrogans serovar Icterohaemorhagiae was analysed using the SEM. Results The results of the broth microdilution assay demonstrate that the aqueous Q. infectoria gall extract possesses anti-microbial activity against both of the L. interrogans serovars with MIC values of 0.125 mg/mL. The MBC values for the L. interrogans serovar Javanica and the L. interrogans serovar Icterohaemorhagiae are 0.125 mg/mL and 0.250 mg/mL, respectively. The SEM micrograph shows changes in shape and size of the extract-treated cells (at 8× MIC) in comparison to the untreated cells. Conclusion The Q. infectoria gall extract displays anti-microbial inhibition and killing activity against the pathogenic Leptospira isolates, and thus has the potential for further exploration of its efficacy and use in the treatment of leptospirosis.
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Affiliation(s)
- Husna Mustafa
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Nabilah Ismail
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
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Nabi M, Bhat A, Abeer Rasool SU, Ashraf S, Maqbool R, Ahmad Ganie S, Amin S. Physio-chemical Characterization and Anti-microbial Activity of Serine Protease Inhibitors Purified from the Sophora japonica Seeds. Pak J Biol Sci 2018; 21:432-440. [PMID: 30724044 DOI: 10.3923/pjbs.2018.432.440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
BACKGROUND AND OBJECTIVE Protease inhibitors (PIs) regulate various cellular processes like cell cycle, differentiation, apoptosis and immune responses. Leguminous seeds are rich sources of protease inhibitors and many novel protease inhibitors have been purified from them. To isolate and purify protease inhibitors from seeds of Sophora japonica, characterize and investigate their anti- microbial activity. MATERIALS AND METHODS Protease inhibitors (SJ-pi I and SJ-pi II) were purified to homogeneity by ammonium sulfate precipitation, Ion exchange chromatography and column chromatography. The molecular mass was estimated by size exclusion chromatography and by SDS-PAGE and anti- microbial activity was tested by agar disk diffusion method. RESULTS Two protease inhibitors were isolated and purified from Sophora japonica seeds, SJ-pi I and SJ-pi II, with molecular weight of 15.1 and 31 kDa, respectively. Both purified inhibitors were active over a range of pH (6.0-9.0) and showed maximum activity in the temperature range of 30-40°C. They inhibited the growth of three Gram-positive bacteria. CONCLUSION Protease inhibitors were classified as serine protease inhibitors, however further necessary structural investigations need to be carried out so as to group them into specific class of serine protease inhibitors.
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Prasad P, Shobhashana PG, Patel MP. An efficient synthesis of 4 H-pyrano quinolinone derivatives catalysed by a versatile organocatalyst tetra- n-butylammonium fluoride and their pharmacological screening. R Soc Open Sci 2017; 4:170764. [PMID: 29291069 PMCID: PMC5717643 DOI: 10.1098/rsos.170764] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 10/26/2017] [Indexed: 06/07/2023]
Abstract
A new series of indole-based pyranoquinoline derivatives P1-24 has been synthesized by a one-pot cyclocondensation reaction of 2-(4-substituted)phenyl-N-allyl-indole-3-carbaldehydes 1a-d; active methylenes 2a-c; and 4-hydroxy-1-substituted quinolin-2(1H)-one 3a-b catalysed by an organocatalyst tetra-n-butylammonium fluoride (TBAF) in aqueous ethanol. The easy experimental procedure of the reaction leads to excellent yields of pyranoquinoline derivatives. All the compounds were screened against a representative panel of bacteria and fungi. Some of the compounds are found to be equipotent or more potent than standard drugs as evident from the structural activity relationship study.
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Jin SK, Yang HS, Choi JS. Effect of Gleditsia sinensis Lam. Extract on Physico-Chemical Properties of Emulsion-Type Pork Sausages. Korean J Food Sci Anim Resour 2017; 37:274-287. [PMID: 28515651 PMCID: PMC5434214 DOI: 10.5851/kosfa.2017.37.2.274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/14/2017] [Accepted: 03/15/2017] [Indexed: 01/11/2023] Open
Abstract
This study was performed to investigate the effect of Gleditsia sinensis Lam. extract on the physicochemical properties of emulsion-type pork sausages during storage at 10°C for 4 wk. Treatments were as follows: (C, control; T1, sodium ascorbate 0.05%; T2, Gleditsia sinensis Lam. 0.05%; T3, Gleditsia sinensis Lam. 0.1%; T4, Gleditsia sinensis Lam. 0.2%; T5, Gleditsia sinensis Lam. 0.1% + sodium ascorbate 0.05%). The values of pH, moisture content, lightness, redness, and sensory attributes were all significantly decreased, while the yellowness, chroma, hue angle, and texture properties were increased during storage with increase of the Gleditsia sinensis Lam. extract added. In addition, the antioxidant activity and antimicrobial activity in the sausages displayed significant increases (p<0.05). Therefore, although it was concluded that the addition of Gleditsia sinensis Lam. extract is not effective for improvement of the physical properties compared to chemical additives in sausages, it could be applied to meat products as a natural preservatives.
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Affiliation(s)
- Sang-Keun Jin
- Department of Animal Resources Technology, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
- Swine Science & Technology Center, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Han-Sul Yang
- Division of Applied Life Science (BK21 Plus), Institute of Agriculture & Life Science, Gyeongsang National University, jinju 52828, Korea
| | - Jung-Seok Choi
- Swine Science & Technology Center, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
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Shaik MR, Albalawi GH, Khan ST, Khan M, Adil SF, Kuniyil M, Al-Warthan A, Siddiqui MRH, Alkhathlan HZ, Khan M. "Miswak" Based Green Synthesis of Silver Nanoparticles: Evaluation and Comparison of Their Microbicidal Activities with the Chemical Synthesis. Molecules 2016; 21:molecules21111478. [PMID: 27827968 PMCID: PMC6274424 DOI: 10.3390/molecules21111478] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/24/2016] [Accepted: 10/31/2016] [Indexed: 11/16/2022] Open
Abstract
Microbicidal potential of silver nanoparticles (Ag-NPs) can be drastically improved by improving their solubility or wettability in the aqueous medium. In the present study, we report the synthesis of both green and chemical synthesis of Ag-NPs, and evaluate the effect of the dispersion qualities of as-prepared Ag-NPs from both methods on their antimicrobial activities. The green synthesis of Ag-NPs is carried out by using an aqueous solution of readily available Salvadora persica L. root extract (RE) as a bioreductant. The formation of highly crystalline Ag-NPs was established by various analytical and microscopic techniques. The rich phenolic contents of S. persica L. RE (Miswak) not only promoted the reduction and formation of NPs but they also facilitated the stabilization of the Ag-NPs, which was established by Fourier transform infrared spectroscopy (FT-IR) analysis. Furthermore, the influence of the volume of the RE on the size and the dispersion qualities of the NPs was also evaluated. It was revealed that with increasing the volume of RE the size of the NPs was deteriorated, whereas at lower concentrations of RE smaller size and less aggregated NPs were obtained. During this study, the antimicrobial activities of both chemically and green synthesized Ag-NPs, along with the aqueous RE of S. persica L., were evaluated against various microorganisms. It was observed that the green synthesized Ag-NPs exhibit comparable or slightly higher antibacterial activities than the chemically obtained Ag-NPs.
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Affiliation(s)
- Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Ghadeer H Albalawi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
- Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi Arabia.
| | - Shams Tabrez Khan
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Merajuddin Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Mufsir Kuniyil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Abdulrahman Al-Warthan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Mohammed Rafiq H Siddiqui
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Hamad Z Alkhathlan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
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Silva E, Fernandes S, Bacelar E, Sampaio A. ANTIMICROBIAL ACTIVITY OF AQUEOUS, ETHANOLIC AND METHANOLIC LEAF EXTRACTS FROM ACACIA SPP. AND Eucalyptus nicholii. Afr J Tradit Complement Altern Med 2016; 13:130-134. [PMID: 28480369 PMCID: PMC5412183 DOI: 10.21010/ajtcam.v13i6.18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND In Europe, Acacia and Eucalyptus, originate large amounts of biomass, due to their need by industries and other biological control, that can be used to extract antimicrobial substances. MATERIALS AND METHODS Foliar aqueous, ethanolic and methanolic extracts of Acacia baileyana (Cootamundra wattle), Acacia dealbata (silver wattle), Acacia melanoxylon (black wattle) and Eucalyptus nicholii (narrow-leaved black peppermint) were assessed for antimicrobial activity against Escherichia coli, Bacillus cereus, Candida albicans and Candida parapsilosis, using the disc diffusion method. RESULTS Ethanolic extracts from A. baileyana and A. dealbata showed significant (P< 0.05) antimicrobial activity. Concerning the microbial species tested, differences were found in A. baileyana (P< 0.01) and E. nicholii (P< 0.0001) extracts. These two extracts were effective mostly against B. cereus, followed by C. parapsilosis. According to the antimicrobial activity classification, eucalypt and Cootamundra and silver wattles extracts (both water and ethanol) presented good efficacy against B. cereus, a food poisoning agent, and moderate efficacy against the remaining microorganisms. E. coli, a Gram negative, exhibited low sensibility to all foliar extracts. CONCLUSION A. baileyana, E. nicholii and A. dealbata foliar biomass could be used to develop alternative substances in microbial control.
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Affiliation(s)
- Ermelinda Silva
- Department of Biology and Environment (DeBA), UTAD, Quinta dos Prados, 5001-801 Vila Real, Portugal
| | - Sara Fernandes
- Department of Biology and Environment (DeBA), UTAD, Quinta dos Prados, 5001-801 Vila Real, Portugal
| | - Eunice Bacelar
- Department of Biology and Environment (DeBA), UTAD, Quinta dos Prados, 5001-801 Vila Real, Portugal
| | - Ana Sampaio
- Department of Biology and Environment (DeBA), UTAD, Quinta dos Prados, 5001-801 Vila Real, Portugal
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Pei K, Ou J, Huang J, Ou S. p-Coumaric acid and its conjugates: dietary sources, pharmacokinetic properties and biological activities. J Sci Food Agric 2016; 96:2952-62. [PMID: 26692250 DOI: 10.1002/jsfa.7578] [Citation(s) in RCA: 316] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/08/2015] [Accepted: 12/11/2015] [Indexed: 05/09/2023]
Abstract
p-Coumaric acid (4-hydroxycinnamic acid) is a phenolic acid that has low toxicity in mice (LD50 = 2850 mg kg(-1) body weight), serves as a precursor of other phenolic compounds, and exists either in free or conjugated form in plants. Conjugates of p-coumaric acid have been extensively studied in recent years due to their bioactivities. In this review, the occurrence, bioavailability and bioaccessibility of p-coumaric acid and its conjugates with mono-, oligo- and polysaccharides, alkyl alcohols, organic acids, amine and lignin are discussed. Their biological activities, including antioxidant, anti-cancer, antimicrobial, antivirus, anti-inflammatory, antiplatelet aggregation, anxiolytic, antipyretic, analgesic, and anti-arthritis activities, and their mitigatory effects against diabetes, obesity, hyperlipaemia and gout are compared. Cumulative evidence from multiple studies indicates that conjugation of p-coumaric acid greatly strengthens its biological activities; however, the high biological activity but low absorption of its conjugates remains a puzzle. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Kehan Pei
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Juanying Ou
- Food and Nutritional Science Program, School of Biological Sciences, the University of Hong Kong, Hong Kong, China
| | - Junqing Huang
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Shiyi Ou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
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Morita A, Tai A, Ito H, Ganeko N, Aizawa SI. Proanthocyanidins in an astringent persimmon inhibit Salmonella pathogenicity island 1 (SPI1) secretion. J Sci Food Agric 2016; 96:1798-1802. [PMID: 26041125 DOI: 10.1002/jsfa.7289] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 05/11/2015] [Accepted: 05/29/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Astringent compounds contained in persimmon fruits have been widely used in Japan as food preservatives and thus as anti-bacterial and anti-fungi reagents. However, the molecular mechanism of the anti-microbial activity has been unclear. One of the virulence secretion systems in Salmonella enterica was used to test the anti-microbial activity of extracts from a persimmon (Diospyros kaki Thunb 'Saijo'). RESULTS We found that the extract could inhibit the secretion of virulence proteins but did not affect cell growth and determined the critical concentrations of the extract to show the effect. Then, the effective fraction on the suppression of secretion of virulence proteins was purified from the crude extracts using solvent partition, absorption chromatography and gel filtration chromatography. The anti-bacterial fraction was analysed by HCl-butanol treatment and gel permeation chromatography followed by nuclear magnetic resonance and identified as the octamers of epigallocatechin and its gallate as major components. CONCLUSION Proanthocyanidins suppress the secretion of Salmonella pathogenicity island 1 virulence proteins.
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Affiliation(s)
- Ai Morita
- Department of Life Sciences, Prefectural University of Hiroshima, 562 Nanatsuka, Shobara, Hiroshima, 727-0023, Japan
| | - Akihiro Tai
- Department of Life Sciences, Prefectural University of Hiroshima, 562 Nanatsuka, Shobara, Hiroshima, 727-0023, Japan
| | - Hideyuki Ito
- Faculty of Health and Welfare Science, Okayama Prefectural University, 111 Kuboki, Soja, Okayama, 719-1197, Japan
| | - Natsuki Ganeko
- Faculty of Health and Welfare Science, Okayama Prefectural University, 111 Kuboki, Soja, Okayama, 719-1197, Japan
| | - Shin-Ichi Aizawa
- Department of Life Sciences, Prefectural University of Hiroshima, 562 Nanatsuka, Shobara, Hiroshima, 727-0023, Japan
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Abstract
OBJECTIVE This study aimed to investigate the anti-acne properties of phloretin in vitro and in vivo. METHODS Anti-microbial activity against Propionibacterium acnes (P. acnes), Propionibacterium granulosum (P. granulosum) and Staphylococcus epidermidis (S. epidermidis) were observed by the minimum inhibitory concentration (MIC) and disc diffusion methods. The anti-inflammatory effects were studied in HaCaT cells based on P. acnes-induced inflammatory mediators, including PGE2 and COX-2, examined through enzyme-linked immunosorbent assay (ELISA) and luciferase reporter gene assay. Thirty healthy subjects with whiteheads participated in the clinical study. Comedo counting, and the amount of sebum and porphyrin were measured before treatment and following 4 consecutive weeks of treatment with phloretin. RESULTS Phloretin showed anti-microbial activities against P. acnes, P. granulosum, S. epidermidis with the MIC of 0.5, 0.5 and 0.25 mg mL(-1) , respectively. P. acnes-induced activation of the COX-2 promoter was markedly attenuated by phloretin treatment. Consistent with these results, inhibition of PGE2 production was also observed. In 1-month, placebo-controlled trials, phloretin showed clinically and statistically significant reduction of comedo counts and sebum output level. Compared to before treatment, whiteheads, blackheads, papules, sebum output level and amount of sebum and porphyrin were significantly decreased at 4 weeks in the test group. CONCLUSIONS This study revealed that phloretin inhibits the growth of P. acnes, P. granulosum, and S. epidermidis. In addition, we demonstrated that phloretin attenuates COX-2 and PGE2 expression during the P. acnes-induced upregulation of inflammatory signalling. Clinical studies further suggested that treatment with formulations containing phloretin confers anti-acne benefits. Based on these results, we suggest that phloretin may be introduced as a possible acne-mitigating agent.
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Affiliation(s)
- H Kum
- Biospectrum Life Science Institute, Sangdaewon-Dong, Seongnam City, 442-13, Gyeonggi Do, Korea
| | - K-B Roh
- Biospectrum Life Science Institute, Sangdaewon-Dong, Seongnam City, 442-13, Gyeonggi Do, Korea
| | - S Shin
- Biospectrum Life Science Institute, Sangdaewon-Dong, Seongnam City, 442-13, Gyeonggi Do, Korea
| | - K Jung
- Biospectrum Life Science Institute, Sangdaewon-Dong, Seongnam City, 442-13, Gyeonggi Do, Korea
| | - D Park
- Biospectrum Life Science Institute, Sangdaewon-Dong, Seongnam City, 442-13, Gyeonggi Do, Korea
| | - E Jung
- Biospectrum Life Science Institute, Sangdaewon-Dong, Seongnam City, 442-13, Gyeonggi Do, Korea
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Mabkhot YN, Kaal NA, Alterary S, Al-Showiman SS, Barakat A, Ghabbour HA, Frey W. Synthesis, in-vitro antibacterial, antifungal, and molecular modeling of potent anti-microbial agents with a combined pyrazole and thiophene pharmacophore. Molecules 2015; 20:8712-29. [PMID: 26007175 DOI: 10.3390/molecules20058712] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Accepted: 05/11/2015] [Indexed: 11/28/2022] Open
Abstract
Ethyl 5-acetyl-4-methyl-2-(phenylamino)thiophene-3-carboxylate (2) and there derivatives 3a–c, 4, 6a–c and 9a–f were synthesized. The structure of compound 2 was deduced by 1H-NMR, 13C-NMR, FT-IR, MS, microanalysis, and single-crystal X-ray crystallography. The compound crystallized in the monoclinic system, with space group P21/c and cell coordinates a = 8.5752(16) Å, b = 21.046(4) Å, c = 8.2941(12) Å, β = 101.131(6)°, V = 1468.7(4) Å3, and Z = 4. Compounds 2, 3a–c, 4, 5a–c and 9a–f were subjected into in vitro antimicrobial activity tests. Compounds 3a and 3c were more potent than standard drug amphotericin B, showing MIC values of 23.8 ± 0.42 and 24.3 ± 0.68, respectively, against Aspergillus fumigatus while the standard drug MIC was 23.7 ± 0.1. Compound 3c was also more potent (MIC 24.8 ± 0.64) than the standard drug amphotericin B (MIC 19.7 ± 0.2) against Syncephalastrum racemosum. Compounds 4 and 9f also showed promising anti-microbial activity. Molecular modeling was performed for the most active compounds.
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Guerra-Laso JM, Raposo-García S, García-García S, Diez-Tascón C, Rivero-Lezcano OM. Microarray analysis of Mycobacterium tuberculosis-infected monocytes reveals IL26 as a new candidate gene for tuberculosis susceptibility. Immunology 2015; 144:291-301. [PMID: 25157980 DOI: 10.1111/imm.12371] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 07/29/2014] [Accepted: 08/21/2014] [Indexed: 01/01/2023] Open
Abstract
Differences in the activity of monocytes/macrophages, important target cells of Mycobacterium tuberculosis, might influence tuberculosis progression. With the purpose of identifying candidate genes for tuberculosis susceptibility we infected monocytes from both healthy elderly individuals (a tuberculosis susceptibility group) and elderly tuberculosis patients with M. tuberculosis, and performed a microarray experiment. We detected 78 differentially expressed transcripts and confirmed these results by quantitative PCR of selected genes. We found that monocytes from tuberculosis patients showed similar expression patterns for these genes, regardless of whether they were obtained from younger or older patients. Only one of the detected genes corresponded to a cytokine: IL26, a member of the interleukin-10 (IL-10) cytokine family which we found to be down-regulated in infected monocytes from tuberculosis patients. Non-infected monocytes secreted IL-26 constitutively but they reacted strongly to M. tuberculosis infection by decreasing IL-26 production. Furthermore, IL-26 serum concentrations appeared to be lower in the tuberculosis patients. When whole blood was infected, IL-26 inhibited the observed pathogen-killing capability. Although lymphocytes expressed IL26R, the receptor mRNA was not detected in either monocytes or neutrophils, suggesting that the inhibition of anti-mycobacterial activity may be mediated by lymphocytes. Additionally, IL-2 concentrations in infected blood were lower in the presence of IL-26. The negative influence of IL-26 on the anti-mycobacterial activity and its constitutive presence in both serum and monocyte supernatants prompt us to propose IL26 as a candidate gene for tuberculosis susceptibility.
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Affiliation(s)
- José M Guerra-Laso
- Servicios de Medicina Interna, Complejo Asistencial Universitario de León (CAULE), León, Spain
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Rahmani AH, shabrmi FMA, Aly SM. Active ingredients of ginger as potential candidates in the prevention and treatment of diseases via modulation of biological activities. Int J Physiol Pathophysiol Pharmacol 2014; 6:125-136. [PMID: 25057339 PMCID: PMC4106649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 06/09/2014] [Indexed: 06/03/2023]
Abstract
The current mode of treatment based on synthetic drugs is expensive and also causes genetic and metabolic alterations. However, safe and sound mode of treatment is needed to control the diseases development and progression. In this regards, medicinal plant and its constituents play an important role in diseases management via modulation of biological activities. Ginger, the rhizome of the Zingiber officinale, has shown therapeutic role in the health management since ancient time and considered as potential chemopreventive agent. Numerous studies based on clinical trials and animal model has shown that ginger and its constituents shows significant role in the prevention of diseases via modulation of genetic and metabolic activities. In this review, we focused on the therapeutics effects of ginger and its constituents in the diseases management, and its impact on genetic and metabolic activities.
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Affiliation(s)
- Arshad H Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim UniversitySaudi Arabia
| | - Fahad M Al shabrmi
- Department of Radiology, College of Applied Medical Sciences, Qassim UniversitySaudi Arabia
| | - Salah M Aly
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim UniversitySaudi Arabia
- Department of Pathology, Faculty of Vet. Medicine, Suez Canal UniversityIsmailia, Egypt
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Khan MA, Miller K, Rainsford KD, Zhou Y. Synthesis and antimicrobial activity of novel substituted ethyl 2-(quinolin-4-yl)-propanoates. Molecules 2013; 18:3227-40. [PMID: 23486102 PMCID: PMC6270033 DOI: 10.3390/molecules18033227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 03/01/2013] [Accepted: 03/04/2013] [Indexed: 02/07/2023] Open
Abstract
Substituted 4-hydroxyquinolines were synthesized from anilines and diethyl 2-(ethoxymethylene)malonate by the Gould-Jacobs reaction via cyclization of the intermediate anilinomethylenemalonate followed by hydrolysis and decarboxylation. The 4-hydroxyquinolines reacted with phosphorous oxychloride to form 4-chloroquinolines, which reacted on heating with diethyl sodiomethylmalonate in DMF to yield moderate yields of substituted ethyl 2-(quinolin-4-yl)propanoates, many of which showed potent antimicrobial activity against Helicobacter pylori.
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Affiliation(s)
- M Akram Khan
- Biomedical Research Centre, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
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Joosten L, van Veen JA. Defensive properties of pyrrolizidine alkaloids against microorganisms. Phytochem Rev 2011; 10:127-136. [PMID: 21475390 PMCID: PMC3047671 DOI: 10.1007/s11101-010-9204-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Accepted: 11/04/2010] [Indexed: 05/26/2023]
Abstract
The understanding of the selection factors that drive chemical diversification of secondary metabolites of constitutive defence systems in plants, such as pyrrolizidine alkaloids (PAs), is still incomplete. Historically, plants always have been confronted with microorganisms. Long before herbivores existed on this planet, plants had to cope with microbial pathogens. Therefore, plant pathogenic microorganisms may have played an important role in the early evolution of the secondary metabolite diversity. In this review, we discuss the impact that plant-produced PAs have on plant-associated microorganisms. The objective of the review is to present the current knowledge on PAs with respect to anti-microbial activities, adaptation and detoxification by microorganisms, pathogenic fungi, root protection and PA induction. Many in vitro experiments showed effects of PAs on microorganisms. These results point to the potential of microorganisms to be important for the evolution of PAs. However, only a few in vivo studies have been published and support the results of the in vitro studies. In conclusion, the topics pointed out in this review need further exploration by carrying out ecological experiments and field studies.
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Affiliation(s)
- Lotte Joosten
- Plant Ecology and Phytochemistry, Institute of Biology, Leiden University, P.O. Box 9505, 2300 RA Leiden, The Netherlands
- Microbial Ecology, Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG Heteren, The Netherlands
| | - Johannes A. van Veen
- Plant Ecology and Phytochemistry, Institute of Biology, Leiden University, P.O. Box 9505, 2300 RA Leiden, The Netherlands
- Microbial Ecology, Netherlands Institute of Ecology, P.O. Box 40, 6666 ZG Heteren, The Netherlands
- P.O. Box 9505, 2300 RA Leiden, The Netherlands
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Lürling M, Beekman W. Anti-cyanobacterial activity of Moringa oleifera seeds. J Appl Phycol 2010; 22:503-510. [PMID: 20676212 PMCID: PMC2898099 DOI: 10.1007/s10811-009-9485-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2009] [Revised: 10/30/2009] [Accepted: 10/30/2009] [Indexed: 05/29/2023]
Abstract
Filtrates from crushed Moringa oleifera seeds were tested for their effects on growth and Photosystem II efficiency of the common bloom-forming cyanobacterium Microcystis aeruginosa. M. aeruginosa populations exhibited good growth in controls and treatments with 4- and 8-mg crushed Moringa seeds per liter, having similar growth rates of 0.50 (+/-0.01) per day. In exposures of 20- to 160-mg crushed Moringa seeds L(-1), growth rates were negative and on average -0.23 (+/-0.05) .day(-1). Presumably, in the higher doses of 20- to 160-mg crushed seeds per liter, the cyanobacteria died, which was supported by a rapid drop in the Photosystem II efficiency (Phi(PSII)), while the Phi(PSII) was high and unaffected in 0, 4, and 8 mg L(-1). High-density populations of M. aeruginosa (chlorophyll-a concentrations of approximately 270 microg L(-1)) were reduced to very low levels within 2 weeks of exposure to >/=80-mg crushed seeds per liter. At the highest dosage of 160 mg L(-1), the Phi(PSII) dropped to zero rapidly and remained nil during the course of the experiment (14 days). Hence, under laboratory conditions, a complete wipeout of the bloom could be achieved. This is the first study that yielded evidence for cyanobactericidal activity of filtrate from crushed Moringa seeds, suggesting that Moringa seed extracts might have a potential as an effect-oriented measure lessening cyanobacterial nuisance.
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Affiliation(s)
- Miquel Lürling
- Aquatic Ecology & Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the Netherlands
| | - Wendy Beekman
- Aquatic Ecology & Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the Netherlands
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Nagesh C, Shankaraiah MM, Venkatesh JS, Setty SR. Role of liquid membrane phenomenon in the anti-bacterial activity of Cefuroxime Sodium. J Basic Clin Pharm 2010; 1:77-80. [PMID: 24825969 PMCID: PMC3979183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 03/10/2010] [Accepted: 04/23/2010] [Indexed: 11/16/2022] Open
Abstract
The role of liquid membrane phenomenon has been studied in the anti bacterial activity of cephalosporins i.e. Cefuroxime sodium. In our earlier publication [1] it was reported that hydraulic permeability data obtained to demonstrate the existence of liquid membrane in series with supporting membrane generated by Cefuroxime sodium. Transport of selected permeants (glucose, PABA, glycine, and ions like Mg(++), NH4 (+), PO4 (-), Ca(++), Na(+), K(+) and Cl(-)) through liquid membrane generated by Cefuroxime sodium in series with supporting membrane has been studied. The results indicated that the liquid membrane generated by Cefuroxime sodium inhibit the transport of various essential bio-molecules and permeants in to the cell. This modification in permeability of different permeants in the presence of the liquid membranes is likely to play significant role in the biological actions of Cefuroxime sodium. The anti-bacterial activity of Cefuroxime sodium further confirmed that the generation of liquid membrane by Cefuroxime sodium is also contributing for the antibacterial activity of them.
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Affiliation(s)
- C. Nagesh
- Galen Laboratory, Salipur, S. C. S. College of Pharmacy, Harapanahalli - 583131, Karnataka, India
| | - M. M. Shankaraiah
- Galen Laboratory, Salipur, S. C. S. College of Pharmacy, Harapanahalli - 583131, Karnataka, India
| | - J. S. Venkatesh
- Galen Laboratory, Salipur, S. C. S. College of Pharmacy, Harapanahalli - 583131, Karnataka, India
| | - S. Ramachandra Setty
- College of Clinical Pharmacy, King Faisal University, AL AHSA, 31982, KSA,Corresponding author: E-mail:
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Soehnlein O, Kenne E, Rotzius P, Eriksson EE, Lindbom L. Neutrophil secretion products regulate anti-bacterial activity in monocytes and macrophages. Clin Exp Immunol 2008; 151:139-45. [PMID: 17991288 PMCID: PMC2276935 DOI: 10.1111/j.1365-2249.2007.03532.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2007] [Indexed: 11/29/2022] Open
Abstract
Macrophages represent a multi-functional cell type in innate immunity that contributes to bacterial clearance by recognition, phagocytosis and killing. In acute inflammation, infiltrating neutrophils release a wide array of preformed granule proteins which interfere functionally with their environment. Here, we present a novel role for neutrophil-derived granule proteins in the anti-microbial activity of macrophages. Neutrophil secretion obtained by antibody cross-linking of the integrin subunit CD18 (X-link secretion) or by treatment with N-Formyl-Met-Leu-Phe (fMLP secretion) induced a several-fold increase in bacterial phagocytosis by monocytes and macrophages. This response was associated with a rapid activation of the monocytes and macrophages as depicted by an increase in cytosolic free Ca(2+). Interestingly, fMLP secretion had a more pronounced effect on monocytes than the X-link secretion, while the opposite was observed for macrophages. In addition, polymorphonuclear cells (PMN) secretion caused a strong enhancement of intracellular reactive oxygen species (ROS) formation compared to incubation with bacteria. Thus, secretion of neutrophil granule proteins activates macrophages to increase the phagocytosis of bacteria and to enhance intracellular ROS formation, indicating pronounced intracellular bacterial killing. Both mechanisms attribute novel microbicidal properties to PMN granule proteins, suggesting their potential use in anti-microbial therapy.
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Affiliation(s)
- O Soehnlein
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden.
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