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Mani J, Johnson J, Hosking H, Schmidt L, Batley R, du Preez R, Broszczak D, Walsh K, Neilsen P, Naiker M. Bioassay-Guided Fractionation of Pittosporum angustifolium and Terminalia ferdinandiana with Liquid Chromatography Mass Spectroscopy and Gas Chromatography Mass Spectroscopy Exploratory Study. PLANTS (BASEL, SWITZERLAND) 2024; 13:807. [PMID: 38592847 PMCID: PMC10974205 DOI: 10.3390/plants13060807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 04/11/2024]
Abstract
Bioprospecting native Australian plants offers the potential discovery of latent and novel bioactive compounds. The promising cytotoxic and antibacterial activity of methanolic extracts of Pittosporum angustifolium and Terminalia ferdinandiana led to further fractionation and isolation using our laboratory's bioassay-guided fractionation protocol. Hence, the aim of this study was to further evaluate the bioactivity of the fractions and subfractions and characterize bioactive compounds using liquid chromatography mass spectroscopy (LC-MS/MS) and gas chromatography MS (GC-MS). Compounds tentatively identified in P. angustifolium Fraction 1 using LC-ESI-QTOF-MS/MS were chlorogenic acid and/or neochlorogenic acid, bergapten, berberine, 8'-epitanegool and rosmarinic acid. GC-MS analysis data showed the presence of around 100 compounds, mainly comprising carboxylic acids, sugars, sugar alcohols, amino acids and monoalkylglycerols. Furthermore, the fractions obtained from T. ferdinandiana flesh extracts showed no cytotoxicity, except against HT29 cell lines, and only Fraction 2 exhibited some antibacterial activity. The reduced bioactivity observed in the T. ferdinandiana fractions could be attributed to the potential loss of synergy as compounds become separated within the fractions. As a result, the further fractionation and separation of compounds in these samples was not pursued. However, additional dose-dependent studies are warranted to validate the bioactivity of T. ferdinandiana flesh fractions, particularly since this is an understudied species. Moreover, LC-MS/GC-MS studies confirm the presence of bioactive compounds in P. angustifolium Fraction 1/subfractions, which helps to explain the significant acute anticancer activity of this plant. The screening process designed in this study has the potential to pave the way for developing scientifically validated phytochemical/bioactivity information on ethnomedicinal plants, thereby facilitating further bioprospecting efforts and supporting the discovery of novel drugs in modern medicine.
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Affiliation(s)
- Janice Mani
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
- Institute for Future Farming Systems, CQUniversity, Bundaberg, QLD 4670, Australia
| | - Joel Johnson
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
- Institute for Future Farming Systems, CQUniversity, Bundaberg, QLD 4670, Australia
| | - Holly Hosking
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
| | - Luke Schmidt
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia; (L.S.); (D.B.)
| | - Ryan Batley
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
| | - Ryan du Preez
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
| | - Daniel Broszczak
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia; (L.S.); (D.B.)
| | - Kerry Walsh
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
- Institute for Future Farming Systems, CQUniversity, Bundaberg, QLD 4670, Australia
| | - Paul Neilsen
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
| | - Mani Naiker
- College of Science and Sustainability, CQUniversity, North Rockhampton, QLD 4701, Australia; (J.J.); (H.H.); (R.B.); (R.d.P.); (K.W.); (P.N.); (M.N.)
- Institute for Future Farming Systems, CQUniversity, Bundaberg, QLD 4670, Australia
- Jawun Research Centre, Cairns, QLD 4870, Australia
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Kachkoul R, Benjelloun Touimi G, Bennani B, El Mouhri G, El Habbani R, Zouhri A, El-Mernissi Y, Lahrichi A. Optimisation of Three Essential Oils against Salmonella spp. and Escherichia coli by Mixture Designa. Chem Biodivers 2023; 20:e202301221. [PMID: 37783668 DOI: 10.1002/cbdv.202301221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/28/2023] [Accepted: 10/01/2023] [Indexed: 10/04/2023]
Abstract
The aim of this work is to optimise the antibacterial activity of essential oils (EOs) from Eucalyptus camaldulensis (ECEO), Mentha pulegium (MPEO) and Rosmarinus officinalis (ROEO) plants against Salmonella spp. and Escherichia coli. The qualitative antimicrobial effect was assessed using the disc diffusion method, the broth microdilution method was used to determine the minimum inhibitory concentrations (MIC). Polynomial models were created using an augmented centroid simplex mixture design to highlight the synergy of EOs. The results show a significant antibacterial effect of ECEO and MPEO against both bacterial strains, with inhibition zones (IZs) of 13 and 12 mm respectively against E. coli, and 13 and 11 mm against Salmonella spp. The latter strain showed a MIC of 0.625 % (v : v) by the ECEO, while E. coli exhibited a MIC of 0.0781 % (v : v). The binary combinations of essential oils display a synergistic effect, the proportions of the optimum EOs in the mixture giving the lowest MICm were of the order of 50.51 % ECEO and 49.49 % ROEO against Salmonella spp. and around 50 % MPEO and 50 % ECEO against E. coli. These results indicate the effectiveness of binary combinations EOs against resistant bacterial strains and suggest their importance in bacterial infections treatment.
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Affiliation(s)
- Rabie Kachkoul
- Laboratory of Biochemistry, Faculty of Medicine, Pharmacy and Dental Medicine, University Sidi Mohammed Ben Abdellah, BP, 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
| | - Ghita Benjelloun Touimi
- Laboratory of Human Pathology Biomedicine and Environment, Faculty of Medicine, Pharmacy and Dental Medicine, University Sidi Mohammed Ben Abdellah, BP, 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
- Euromed research center, Euromed faculty of medicine, Euromed University of Fes (UEMF), 30 030, Meknes Road, Campus UEMF, BP51, Fez, Morocco
| | - Bahia Bennani
- Laboratory of Human Pathology Biomedicine and Environment, Faculty of Medicine, Pharmacy and Dental Medicine, University Sidi Mohammed Ben Abdellah, BP, 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
| | - Ghita El Mouhri
- Laboratory of Biochemistry, Faculty of Medicine, Pharmacy and Dental Medicine, University Sidi Mohammed Ben Abdellah, BP, 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
| | - Radouane El Habbani
- Laboratory of Biochemistry, Faculty of Medicine, Pharmacy and Dental Medicine, University Sidi Mohammed Ben Abdellah, BP, 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
| | - Aziz Zouhri
- Bioactives and Environmental Health Laboratory, Faculty of Sciences, Moulay Ismail University, Meknes B.P., 11201, Morocco
| | - Yahya El-Mernissi
- Research unit in applied chemistry, Faculty of Science and Techniques, Abdelmalek Essaadi University, Al Hoceima 32003, Morocco
| | - Anissa Lahrichi
- Laboratory of Biochemistry, Faculty of Medicine, Pharmacy and Dental Medicine, University Sidi Mohammed Ben Abdellah, BP, 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
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Mani J, Johnson J, Hosking H, Hoyos BE, Walsh KB, Neilsen P, Naiker M. Bioassay Guided Fractionation Protocol for Determining Novel Active Compounds in Selected Australian Flora. PLANTS (BASEL, SWITZERLAND) 2022; 11:2886. [PMID: 36365337 PMCID: PMC9654191 DOI: 10.3390/plants11212886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 10/26/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
A large variety of unique and distinct flora of Australia have developed exceptional survival methods and phytochemicals and hence may provide a significant avenue for new drug discovery. This study proposes a bioassay guided fractionation protocol that maybe robust and efficient in screening plants with potential bioactive properties and isolating lead novel compounds. Hence, five native Australian plants were selected for this screening process, namely Pittosporum angustifolium (Gumbi gumbi), Terminalia ferdinandiana (Kakadu plum, seeds (KPS), and flesh (KPF)), Cupaniopsis anacardioides (Tuckeroo, seeds (TKS) and flesh (TKF)), Podocarpus elatus (Illawarra plum, seeds (IPS) and flesh (IPF)) and Pleiogynium timoriense (Burdekin plum, seeds (BPS) and flesh (BPF)). The methanolic extracts of the plants samples were analysed for Total phenolic content (TPC) and antioxidant capacity measure by FRAP. The highest values were found in the KPF which were 12,442 ± 1355 mg GAE/ 100 g TPC and 16,670 ± 2275 mg TXE/100 g antioxidant capacity. Extracts of GGL was deemed to be most potent with complete cell inhibition in HeLa and HT29, and about 95% inhibition in HuH7 cells. Comparative activity was also seen for KPS extract, where more than 80% cell inhibition occurred in all tested cell lines. Dose-dependent studies showed higher SI values (0.72-1.02) in KPS extracts than GGL (0.5-0.73). Microbial assays of the crude extracts were also performed against five bacterial strains commonly associated with causing food poisoning diseases were selected (Gram positive-Staphylococcus aureus and Gram negative-Escherichia coli, Salmonella typhi and Pseudomonas aeruginosa bacteria). KPF extracts were effective in suppressing microbial growth of all tested bacterial strains except for P. aeruginosa, while TKS and TKF were only slightly effective against S. aureus. Due to the potential of the GGL crude extract to completely inhibit the cells compared to KPS, it was further fractionated and tested against the cell lines. HPLC phenolic profiling of the crude extracts were performed, and numerous peak overlaps were evident in the fruit extracts. The KPF extracts demonstrated the strongest peaks which was coherent with the fact that it had the highest TPC and antioxidant capacity values. A high occurrence of t-ferulic acid in the GGL extracts was found which may explain the cytotoxic activity of GGL extracts. Peaks in KPS and KPF extracts were tentatively identified as gallic acid, protocatechuic acid, 4-hydroxybenzoic acid and syringic acid and possibly ellagic acid. HPLC time-based fractionation of the GGL extract (F1-F5) was performed and Dose dependent cytotoxic effects were determined. It was construed that F1, having the highest SI value for HeLa, HT29 and HuH7 (1.60, 1.41 and 1.67, respectively) would be promising for further fractionation and isolation process.
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Affiliation(s)
- Janice Mani
- School of Health, Medical and Applied Sciences, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
- Institute of Future Farming Systems, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
| | - Joel Johnson
- School of Health, Medical and Applied Sciences, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
- Institute of Future Farming Systems, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
| | - Holly Hosking
- School of Health, Medical and Applied Sciences, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
| | - Beatriz E. Hoyos
- School of Health, Medical and Applied Sciences, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
- Institute of Future Farming Systems, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
| | - Kerry B. Walsh
- School of Health, Medical and Applied Sciences, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
- Institute of Future Farming Systems, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
| | - Paul Neilsen
- School of Health, Medical and Applied Sciences, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
| | - Mani Naiker
- School of Health, Medical and Applied Sciences, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
- Institute of Future Farming Systems, Central Queensland University, Bruce Hwy, North Rockhampton, QLD 4701, Australia
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Kachkoul R, Benjelloun Touimi G, Bennani B, El Habbani R, El Mouhri G, Mohim M, Sqalli Houssaini T, Chebaibi M, Koulou A, Lahrichi A. The Synergistic Effect of Three Essential Oils against Bacteria Responsible for the Development of Lithiasis Infection: An Optimization by the Mixture Design. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:1305264. [PMID: 34497653 PMCID: PMC8421168 DOI: 10.1155/2021/1305264] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/03/2021] [Accepted: 08/18/2021] [Indexed: 12/13/2022]
Abstract
The present study aimed to determine the chemical composition and the synergistic effect of three plants' essential oils (EOs), Eucalyptus camaldulensis (ECEO), Mentha pulegium (MPEO), and Rosmarinus officinalis (ROEO), against three bacterial strains, Proteus mirabilis, Klebsiella pneumoniae, and Staphylococcus aureus, in order to increase the antimicrobial effectiveness by the use of a low dose of essential oils, consequently decreasing the toxicity and negative impact. For this reason, an augmented simplex-centroid mixture design was used to build polynomial models in order to highlight the synergy between the essential oils against bacterial strains. Antimicrobial effect screening was performed by the disc diffusion method and the minimal inhibitory concentrations (MIC) were also studied. The gas chromatography/mass spectrometry (GC-MS) results show the richness of these essential oils by terpenic compounds, especially 1,8-Cineole and P-Cymene for ECEO, Pulegone for MPEO, and α-Pinene and Camphene for ROEO. Moreover, a significant antibacterial effect has been demonstrated and the best values were revealed by MPEO and ECEO against P. mirabilis and K. pneumoniae, with inhibition zones (IZ) of 25 and 20 mm, respectively, and an MIC of 0.0391% (v:v) against K. pneumoniae. The optimal mixtures showed a synergistic effect of essential oils, and the lowest minimal inhibitory concentrations of the mixtures (MICm) were in the order of 29.38% of MPEO, 45.37% of ECEO, and 25.25% of ROEO against P. mirabilis and in the order of 60.61% of MPEO and 39.39% of ROEO against K. pneumoniae. These results indicate the antibacterial efficacy of the three essential oils combined and suggest their importance in the treatment of urinary tract infections caused by resistant bacterial strains.
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Affiliation(s)
- Rabie Kachkoul
- Laboratory of Biochemistry, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, BP 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
- Faculty of Science and Technology, University Sidi Mohammed Ben Abdellah, BP 2202, Road of Imouzzer, Fez, Morocco
| | - Ghita Benjelloun Touimi
- Faculty of Science and Technology, University Sidi Mohammed Ben Abdellah, BP 2202, Road of Imouzzer, Fez, Morocco
- Laboratory of Human Pathology Biomedicine and Environment, Faculty of Medicine and Pharmacy of Fez, Sidi Mohammed Ben Abdellah University (USMBA), Fez, Morocco
| | - Bahia Bennani
- Laboratory of Human Pathology Biomedicine and Environment, Faculty of Medicine and Pharmacy of Fez, Sidi Mohammed Ben Abdellah University (USMBA), Fez, Morocco
| | - Radouane El Habbani
- Laboratory of Biochemistry, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, BP 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
| | - Ghita El Mouhri
- Laboratory of Biochemistry, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, BP 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
- Faculty of Science and Technology, University Sidi Mohammed Ben Abdellah, BP 2202, Road of Imouzzer, Fez, Morocco
| | - Mohamed Mohim
- Faculty of Science and Technology, University Sidi Mohammed Ben Abdellah, BP 2202, Road of Imouzzer, Fez, Morocco
- Laboratory of Molecular Bases in Human Pathology and Therapeutic Tools, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, BP 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
| | - Tarik Sqalli Houssaini
- Laboratory of Molecular Bases in Human Pathology and Therapeutic Tools, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, BP 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
- Department of Nephrology, University Hospital Hassan II, BP 1835, Atlas, Road of Sidi Harazem, Fez, Morocco
| | - Mohamed Chebaibi
- Biomedical and Translational Medical Research Center, Faculty of Medicine and Pharmacy of the Fez, University of Sidi Mohamed Ben Abdellah, Fez 30000, Morocco
| | - Amine Koulou
- Laboratory of Catalyse Organic Chemistry and Environment, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco
| | - Anissa Lahrichi
- Laboratory of Biochemistry, Faculty of Medicine and Pharmacy, University Sidi Mohammed Ben Abdellah, BP 1893, Km 22, Road of Sidi Harazem, Fez, Morocco
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Mani JS, Johnson JB, Hosking H, Ashwath N, Walsh KB, Neilsen PM, Broszczak DA, Naiker M. Antioxidative and therapeutic potential of selected Australian plants: A review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 268:113580. [PMID: 33189842 DOI: 10.1016/j.jep.2020.113580] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 11/05/2020] [Accepted: 11/07/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Numerous common pharmaceuticals, including anti-cancer, antiviral and antidiabetic drugs, are derived from traditional plant-derived medicines. With approximately 25,000 species of flora occurring in Australia that are adapted to the harsh environment, there is a plethora of novel compounds awaiting research in the context of their medicinal properties. Anecdotal accounts of plant-based medicines used by the Australian Aboriginal and Torres Strait Islander peoples clearly illustrates high therapeutic activity. AIM This review aims to demonstrate the medicinal potentials of selected native Australian plants based on scientific data. Furthermore, it is anticipated that work presented here will contribute towards enhancing our knowledge of native plants from Australia, particularly in the prevention and potential treatment of disease types such as cancer, microbial and viral infections, and diabetes. This is not meant to be a comprehensive study, rather it is meant as an overview to stimulate future research in this field. METHODS The EBSCOhost platform which included PubMed, SciFinder, Web of Knowledge, Scopus, and ScienceDirect databases were searched for papers using the keywords: medicinal plants, antioxidative, antimicrobial, antibacterial, anticancer, anti-tumor, antiviral or antidiabetic, as well as Australian, native, traditional and plants. The selection criteria for including studies were restricted to articles on plants used in traditional remedies which showed antioxidative potential and therapeutic properties such as anticancer, antimicrobial, antiviral and antidiabetic activity. RESULTS Some plants identified in this review which showed high Total Phenolic Content (TPC) and antioxidative capacity, and hence prominent bioactivity, included Tasmannia lanceolata (Poir.) A.C. Sm., Terminalia ferdinandiana Exell, Eucalyptus species, Syzygium species, Backhousia citriodora F.Muell., Petalostigma species, Acacia species, Melaleuca alternifolia (Maiden & Betche) Cheel, Eremophila species, Prostanthera rotundifolia R.Br., Scaevola spinescens R. Br. and Pittosporum angustifolium Lodd. The majority of studies found polar compounds such as caffeic acid, coumaric acid, chlorogenic acid, quercetin, anthocyanins, hesperidin, kaempferol, catechin, ellagic acid and saponins to be the active components responsible for the therapeutic effects. Additionally, mid to non-polar volatile organic compounds such as meroterpenes (serrulatanes and nerol cinnamates), monoterpenes (1,8-cineole and myodesert-1-ene), sesquiterpenes, diterpenes and triterpenes, that are known only in Australian plants, have also shown therapeutic properties related to traditional medicine. CONCLUSION Australian plants express a diverse range of previously undescribed metabolites that have not been given full in vitro assessment for human health potential. This review has included a limited number of plant species of ethnomedicinal significance; hundreds of plants remain in need of exploration and detailed study. Future more elaborate studies are therefore required to screen out and purify lead bioactive compounds against numerous other disease types. This will not only improve our knowledge on the phytochemistry of Australian native flora, but also provide a platform to understand their health-promoting and bioactive effects for pharmaceutical interventions, nutraceuticals, cosmetics, and as functional foods. Finally, plant-derived natural compounds (phytochemicals), as well as plant-based traditional remedies, are significant sources for latent and novel drugs against diseases. Extensive investigation of native medicinal plants may well hold the key to novel drug discoveries.
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Affiliation(s)
- Janice S Mani
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia; Institute of Future Farming Systems, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia.
| | - Joel B Johnson
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia; Institute of Future Farming Systems, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia
| | - Holly Hosking
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia
| | - Nanjappa Ashwath
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia; Institute of Future Farming Systems, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia
| | - Kerry B Walsh
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia; Institute of Future Farming Systems, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia
| | - Paul M Neilsen
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia
| | - Daniel A Broszczak
- Institute of Health & Biomedical Innovation (Q-Block), Queensland University of Technology, Kelvin Grove Campus, QLD, Australia
| | - Mani Naiker
- School of Health, Medical and Applied Sciences, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia; Institute of Future Farming Systems, CQUniversity, Bruce Hwy, North Rockhampton, Qld 4701, Australia
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He L, Yang L, Zhang H, Luo Q. Efficacy and safety of interferon on neonates with respiratory syncytial virus pneumonia. Exp Ther Med 2020; 20:220. [PMID: 33193835 PMCID: PMC7646691 DOI: 10.3892/etm.2020.9350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 09/08/2020] [Indexed: 12/14/2022] Open
Abstract
Respiratory syncytial virus (RSV) pneumonia is a leading cause of hospitalization and mortality among neonates worldwide, and there are currently no specific clinical treatments for RSV infection. Interferons (IFNs) possess broad-spectrum antiviral properties, and the present study aimed to evaluate the efficacy and safety of IFN-α1b for the treatment of neonatal RSV pneumonia. Neonates with RSV pneumonia were divided into the treatment (126 neonates) and control (160 neonates) groups, the former of which were treated with IFN. Aside from IFN administration, both groups received the same routine treatments. There were no significant differences in patient characteristics between the two groups. All neonates in the two groups displayed symptoms such as a cough (93.0%), tachypnea (90.1%), perilabial cyanosis (67.8%), choking on milk (62.9%) and moist rales (58.4%), and no significant differences in the occurrence of these symptoms were observed between the groups (P>0.05). The percentage of cases with bacterial co-infection was 66.8% (191/286), and the bacterial species in the spectrum primarily included Escherichia coli (21.5%), Klebsiella pneumonia (20.4%), Staphylococcus aureus (17.2%), Acihetobacter baumanii (13.1%) and Pseudomonas aeruginosa (9.9%). There were no significant differences in the co-infection rate or bacterial spectrum between the two groups. The remission time of cough, tachypnea, choking on milk, perilabial cyanosis, moist rales and oxygen inhalation in the treatment group was significantly lower compared with the control group (P<0.05). Although the hospitalization time in the treatment group was shorter compared with the control group, the difference was not significant. There were two patients in the treatment group that developed fever within 2-6 h after receiving IFN-α1b, though no other adverse effects were observed. In conclusion, IFN-α1b treatment improved the symptoms associated with neonatal RSV pneumonia with minimal adverse effects.
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Affiliation(s)
- Lingyun He
- Scientific Research and Education Section, Chongqing Health Center for Women and Children, Chongqing 401120, P.R. China.,Neonatal Department, Children's Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Lu Yang
- Department of Breast and Thyriod Surgery, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Hua Zhang
- Scientific Research and Education Section, Chongqing Health Center for Women and Children, Chongqing 401120, P.R. China
| | - Qian Luo
- Scientific Research and Education Section, Chongqing Health Center for Women and Children, Chongqing 401120, P.R. China
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Herb-Drug Interaction: Application of a UPLC-MS/MS Method to Determine the Effect of Polygonum capitatum Extract on the Tissue Distribution and Excretion of Levofloxacin in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:2178656. [PMID: 32908555 PMCID: PMC7450321 DOI: 10.1155/2020/2178656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/08/2020] [Accepted: 07/14/2020] [Indexed: 11/23/2022]
Abstract
Polygonum capitatum has unique curative effects on the urinary system. In fact, many Polygonum capitatum-based preparations are currently used in the clinic. In China, the combination of levofloxacin (LVFX) with a Chinese herbal preparation derived from Polygonum capitatum has been used for the clinical treatment of urinary system diseases, which can improve the curative effects and reduce the side effects of LVFX. However, the herb-drug interaction (HDI) between these drugs has not been reported and the effect of Polygonum capitatum on the in vivo process of LVFX is unclear. In this article, a sensitive ultraperformance liquid chromatography-tandem mass spectroscopy (UPLC-MS/MS) method was developed to evaluate the effects of the combined application of LVFX and the Polygonum capitatum extract on tissue distribution and excretion. Thereafter, the method was validated for selectivity, accuracy, precision, linearity, lower limit of quantification (LLOQ), dilution integrity, recovery, and matrix effect. Based on tissue distribution, LVFX could diffuse into all of the tested tissues, with significant differences in the content of each tissue between the coadministration group and single administration group. At 48 h after the combination was orally administered, the urinary cumulative excretion of LVFX decreased from 20.69% to 11.84% while its fecal cumulative excretion decreased from 26.08% to 13.28%. Our results suggest that a drug interaction exists between the two drugs in the process of distribution and excretion. This study provides important experimental evidence for further studies on the clinical efficacy and mechanism of the Polygonum capitatum extract and LVFX.
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Johnson J, Mani J, Ashwath N, Naiker M. Potential for Fourier transform infrared (FTIR) spectroscopy toward predicting antioxidant and phenolic contents in powdered plant matrices. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 233:118228. [PMID: 32155578 DOI: 10.1016/j.saa.2020.118228] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 02/17/2020] [Accepted: 03/03/2020] [Indexed: 06/10/2023]
Abstract
Mid-infrared spectroscopy is finding an increasing number of applications; however, many of its potential uses remain unexplored. In this study, mid-infrared spectroscopy is applied to predict total antioxidant capacity and phenolic contents of powdered matrices of 14 diverse plant species. In all instances, the optimum prediction models were found using standard normal variate smoothing as a pre-processing method. The results show high correlation between the FTIR predicted and chemically determined values, namely R2 values of 0.962 for total phenolics, 0.829 for cupric reducing antioxidant potential (CUPRAC) and 0.911 for ferric reducing antioxidant potential (FRAP). The relative RMSE found for validation indicated that total phenolic content could be predicted with higher accuracy than CUPRAC or FRAP. This pilot study highlights the promise of this technology for plant breeders and a range of industries where rapid screening of many samples for antioxidant and/or phenolic content is envisaged.
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Affiliation(s)
- Joel Johnson
- CQUniversity, School of Health, Medical and Applied Sciences, North Rockhampton, Qld 4702, Australia.
| | - Janice Mani
- CQUniversity, School of Health, Medical and Applied Sciences, North Rockhampton, Qld 4702, Australia
| | - Nanjappa Ashwath
- CQUniversity, School of Health, Medical and Applied Sciences, North Rockhampton, Qld 4702, Australia
| | - Mani Naiker
- CQUniversity, School of Health, Medical and Applied Sciences, North Rockhampton, Qld 4702, Australia
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