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Zakaria II, Salin NH, Amanah A, Othman S, Khairuddin F, Khawory MH, Wahab RA, Rahaman MRA, Chern PP, Johari NA, Wahab H. Potential anti-viral compounds from Malaysian Plant Natural Product Repository and Database (MyNature50000) for DENV2. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1578184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Iffah Izzati Zakaria
- Natural Product and Drug Discovery Centre, Malaysian Institute of Pharmaceuticals and Nutraceuticals, Ministry of Science, Technology and Innovation, Gelugor, Malaysia
| | - Nurul Hanim Salin
- Natural Product and Drug Discovery Centre, Malaysian Institute of Pharmaceuticals and Nutraceuticals, Ministry of Science, Technology and Innovation, Gelugor, Malaysia
| | - Azimah Amanah
- Natural Product and Drug Discovery Centre, Malaysian Institute of Pharmaceuticals and Nutraceuticals, Ministry of Science, Technology and Innovation, Gelugor, Malaysia
| | - Shatrah Othman
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Farahayu Khairuddin
- Protein Expression and Purification Unit, Malaysia Genome Institute, Kajang, Malaysia
| | - Muhammad Hidhir Khawory
- Natural Product and Drug Discovery Centre, Malaysian Institute of Pharmaceuticals and Nutraceuticals, Ministry of Science, Technology and Innovation, Gelugor, Malaysia
| | - Roswanira Abdul Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | | | - Pua Pei Chern
- Faculty of Biotechnology, International Manipal University, Nilai, Malaysia
| | - Nor Azfa Johari
- Protein Expression and Purification Unit, Malaysia Genome Institute, Kajang, Malaysia
| | - Habibah Wahab
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden, Malaysia
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Sharma N, Mishra KP, Chanda S, Bhardwaj V, Tanwar H, Ganju L, Kumar B, Singh SB. Evaluation of anti-dengue activity of Carica papaya aqueous leaf extract and its role in platelet augmentation. Arch Virol 2019; 164:1095-1110. [PMID: 30790105 DOI: 10.1007/s00705-019-04179-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 01/17/2019] [Indexed: 12/16/2022]
Abstract
Dengue disease is characterized by a marked decrease in platelet count, which is life threatening. In the present study, we investigated the antiviral activity of an aqueous extract of Carica papaya leaves (PLE) against dengue virus (DENV) and its effect on platelet augmentation. The anti-dengue activity of PLE in DENV-infected THP-1 cells was examined by immunoblotting and flow cytometry. The effect of PLE on erythrocyte damage was investigated using hemolytic and anti-hemolytic assays. Virus-infected THP-1 cells were assayed for IFN-α secretion. The effect of PLE on platelet augmentation in rats with cyclophosphamide-induced thrombocytopenia was also investigated. The platelet count of blood from the retro-orbital plexus of rats was determined on the 1st, 4th, 7th, 11th and 14th day of study. On the 14th day, the rats were sacrificed for histopathological examination of the liver, kidney and spleen. Plasma of thrombocytopenic rats was tested for thrombopoietin (TPO) and IL-6 secretion. The data suggest that PLE significantly decreases the expression of the envelope and NS1 proteins in DENV-infected THP-1 cells. A marked decrease in intracellular viral load upon PLE treatment confirmed its antiviral activity. This also resulted in a significant decrease in erythrocyte damage and hydrogen-peroxide-induced lipid peroxidation. A significant increase in the number of platelets was found in thrombocytopenic rats treated with PLE, along with an increase in IL-6 and TPO levels. These findings suggest that PLE can potentially be used as an antiviral agent, as it helps in platelet augmentation and exhibits antiviral activity against DENV.
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Affiliation(s)
- Navita Sharma
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India
| | - Kamla Prasad Mishra
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India. .,O/o Director General (Life Sciences), Defence Research and Development Organization, New Delhi, 110011, India.
| | - Sudipta Chanda
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India
| | - Varun Bhardwaj
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India
| | - Himanshi Tanwar
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India
| | - Lilly Ganju
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India
| | - Bhuvnesh Kumar
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India
| | - Shashi Bala Singh
- Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, New Delhi, Delhi, 110054, India
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Tahir Ul Qamar M, Maryam A, Muneer I, Xing F, Ashfaq UA, Khan FA, Anwar F, Geesi MH, Khalid RR, Rauf SA, Siddiqi AR. Computational screening of medicinal plant phytochemicals to discover potent pan-serotype inhibitors against dengue virus. Sci Rep 2019; 9:1433. [PMID: 30723263 PMCID: PMC6363786 DOI: 10.1038/s41598-018-38450-1] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 12/19/2018] [Indexed: 02/07/2023] Open
Abstract
Emergence of Dengue as one of the deadliest viral diseases prompts the need for development of effective therapeutic agents. Dengue virus (DV) exists in four different serotypes and infection caused by one serotype predisposes its host to another DV serotype heterotypic re-infection. We undertook virtual ligand screening (VLS) to filter compounds against DV that may inhibit inclusively all of its serotypes. Conserved non-structural DV protein targets such as NS1, NS3/NS2B and NS5, which play crucial role in viral replication, infection cycle and host interaction, were selected for screening of vital antiviral drug leads. A dataset of plant based natural antiviral derivatives was developed. Molecular docking was performed to estimate the spatial affinity of target compounds for the active sites of DV’s NS1, NS3/NS2B and NS5 proteins. The drug likeliness of the screened compounds was followed by ADMET analysis whereas the binding behaviors were further elucidated through molecular dynamics (MD) simulation experiments. VLS screened three potential compounds including Canthin-6-one 9-O-beta-glucopyranoside, Kushenol W and Kushenol K which exhibited optimal binding with all the three conserved DV proteins. This study brings forth novel scaffolds against DV serotypes to serve as lead molecules for further optimization and drug development against all DV serotypes with equal effect against multiple disease causing DV proteins. We therefore anticipate that the insights given in the current study could be regarded valuable towards exploration and development of a broad-spectrum natural anti-dengue therapy.
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Affiliation(s)
| | - Arooma Maryam
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Iqra Muneer
- School of Life Sciences, University of Science and Technology of China, Hefei, P.R. China
| | - Feng Xing
- College of Informatics, Huazhong Agricultural University, Wuhan, P.R. China
| | - Usman Ali Ashfaq
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Faheem Ahmed Khan
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education China, Huazhong Agricultural University, Wuhan, P.R. China
| | - Farooq Anwar
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Mohammed H Geesi
- Department of Chemistry, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Al Kharj, Saudi Arabia.
| | - Rana Rehan Khalid
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Sadaf Abdul Rauf
- Department of Computer Science, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Abdul Rauf Siddiqi
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan.
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Wolff T, Berrueta LA, Valente LMM, Barboza RS, Neris RLS, Guimarães-Andrade IP, Assunção-Miranda I, Nascimento AC, Gomes M, Gallo B, Iriondo C. Comprehensive characterisation of polyphenols in leaves and stems of three anti-dengue virus type-2 active Brazilian Faramea species (Rubiaceae) by HPLC-DAD-ESI-MS/MS. PHYTOCHEMICAL ANALYSIS : PCA 2019; 30:62-72. [PMID: 30191624 DOI: 10.1002/pca.2790] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 06/22/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION The methanol (MeOH) leaf extracts of the species Faramea bahiensis, F. hyacinthina and F. truncata (Rubiaceae) have previously shown in vitro non-cytotoxic and anti-dengue virus serotype 2 (DENV2) activities in human hepatocarcinoma cell lineage (HepG2). Chemical studies have led to the isolation of major flavonoids, but quite complex fractions of phenolic compounds still remain. OBJECTIVE To complete the study of phenolic compounds in the leaves and to access the presence of these compounds in the stems of these Faramea spp. by online high-performance liquid chromatography-diode array detector-electrospray ionisation tandem mass spectrometry (HPLC-DAD-ESI-MS/MS), as well as to evaluate the in vitro cytotoxic and anti-DENV2 activities of their MeOH stem extracts. METHODOLOGY The identification was performed by comparing retention times, UV and mass spectra with those of available standards and by using the mechanisms and fragmentation patterns established in previous studies. The effects of the extracts in DENV2 infected HepG2 cell viability was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The virus titer was quantified by plaque assay. RESULTS The study led to the characterisation of 31 phenolic compounds including flavonoid O- and C-glycosides, phenolic acids and one coumarin. The stem extracts from F. hyacinthina and F. bahiensis presented a similar bioactivity to those of their leaves but a loss of cytoprotective activity of F. bahiensis and a higher cytotoxicity of F. truncata were observed. CONCLUSIONS This research allowed a detailed phenolic composition of three bioactive Faramea species to be achieved, thus contributing to the study of this genus and providing valuable information for further phytotherapeutic applications.
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Affiliation(s)
- Thiago Wolff
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luis A Berrueta
- Departamento de Química Analítica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Bilbao, Spain
| | - Ligia M M Valente
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rodolfo S Barboza
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rômulo L S Neris
- Instituto de Microbiologia Paulo Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Iris P Guimarães-Andrade
- Instituto de Microbiologia Paulo Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Iranaia Assunção-Miranda
- Instituto de Microbiologia Paulo Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriana C Nascimento
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mário Gomes
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Blanca Gallo
- Departamento de Química Analítica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Bilbao, Spain
| | - Carmen Iriondo
- Departamento de Química Orgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Bilbao, Spain
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Development of a NS2B/NS3 protease inhibition assay using AlphaScreen ® beads for screening of anti-dengue activities. Heliyon 2018; 4:e01023. [PMID: 30560214 PMCID: PMC6289942 DOI: 10.1016/j.heliyon.2018.e01023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/27/2018] [Accepted: 12/04/2018] [Indexed: 12/15/2022] Open
Abstract
Background Dengue infection is an endemic infectious disease and it can lead to dengue fever, dengue hemorrhagic fever, and/or dengue shock syndromes. Dengue NS2B/NS3 protease complex is essential for viral replication and is a primary target for anti-dengue drug development. In this study, a NS2B/NS3 protease inhibition assay was developed using AlphaScreen® beads and was used to screen compounds for their protease inhibition activities. Methods The assay system utilized a known NS2B/NS3 peptide substrate, a recombinant of NS2B/NS3 protease with proprietary StrepTactin® donor and nickel chelate acceptor beads in 384-well format. Results The optimized assay to screen for NS2B/NS3 protease inhibitors was demonstrated to be potentially useful with reasonable zʹ factor, coefficient variance and signal to background ratio. However, screening of synthesized thioguanine derivatives using the optimized AlphaScreen® assay revealed weak NS2B/NS3 inhibition activities. Conclusion The AlphaScreen® assay to screen for NS2B/NS3 protease inhibitors is potentially applicable for high throughput screening.
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Yusufzai SK, Khan MS, Sulaiman O, Osman H, Lamjin DN. Molecular docking studies of coumarin hybrids as potential acetylcholinesterase, butyrylcholinesterase, monoamine oxidase A/B and β-amyloid inhibitors for Alzheimer's disease. Chem Cent J 2018; 12:128. [PMID: 30515636 PMCID: PMC6768047 DOI: 10.1186/s13065-018-0497-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 11/21/2018] [Indexed: 01/11/2023] Open
Abstract
Coumarins are the phytochemicals, which belong to the family of benzopyrone, that display interesting pharmacological properties. Several natural, synthetic and semisynthetic coumarin derivatives have been discovered in decades for their applicability as lead structures as drugs. Coumarin based conjugates have been described as potential AChE, BuChE, MAO and β-amyloid inhibitors. Therefore, the objective of this review is to focus on the construction of these pharmacologically important coumarin analogues with anti-Alzheimer’s activities, highlight their docking studies and structure–activity relationships based on their substitution pattern with respect to the selected positions on the chromen ring by emphasising on the research reports conducted in between year 1968 to 2017.![]()
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Affiliation(s)
- Samina Khan Yusufzai
- School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Mohammad Shaheen Khan
- Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia.
| | - Othman Sulaiman
- School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Hasnah Osman
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Dalily Nabilah Lamjin
- Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia
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Yusufzai SK, Osman H, Khan MS, Abd Razik BM, Ezzat MO, Mohamad S, Sulaiman O, Gansau JA, Parumasivam T. 4-Thiazolidinone coumarin derivatives as two-component NS2B/NS3 DENV flavivirus serine protease inhibitors: synthesis, molecular docking, biological evaluation and structure-activity relationship studies. Chem Cent J 2018; 12:69. [PMID: 29896651 PMCID: PMC5997609 DOI: 10.1186/s13065-018-0435-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/12/2018] [Indexed: 12/04/2022] Open
Abstract
A series of novel 4-thiazolidinone inhibitors SKYa-SKYg, containing coumarin as a core structure were synthesized via facile and efficient method. The structures of the synthesized compounds were established by extensive spectroscopic studies (FT IR, 1D NMR, 2D NMR, LC-MS) and elemental analysis. All the synthesized hybrids were further evaluated for their potential as anti-tubercular agents against Mycobacterium tuberculosis H37Rv ATCC 25618, and anti-bacterial agents against Escherichia coli, Enterobacter aerogenes, Salmonella typhi, Streptococcus pneumoniae and Staphylococcus aureus. Interestingly, the hybrids displayed potent bioactivity. However, compounds SKYc, SKYd, and SKYe appeared to be more effective against the tested bacterial strains, among which compound SKYb showed the highest inhibition against all the bacterial strains ranging from 41 to 165 μg/mL, as compared to the standards, streptomycin, kanamycin and vancomycin. Moreover, derivative SKYa was found to be the strongest against M. tuberculosis (83 μg/mL). Additionally, the anti-dengue potential of the coumarin hybrids as two-component NS2B/NS3 DENV flavivirus serine protease inhibitors was calculated using computational molecular docking approach, with reference to the standards 4-hydroxypanduratin, panduratin and ethyl 3-(4-(hydroxymethyl)-2-methoxy-5-nitrophenoxy)propanoate with DS of - 3.379, - 3.189 and - 3.381, respectively. The docking results revealed that the synthesized hybrids exhibited potent anti-dengue activity among which compounds SKYf, SKYd, SKYc and SKYe were found to be the best ones with docking scores of - 4.014, - 3.964, - 3.905 and - 3.889. In summary, we discovered 4-thiazolidinone coumarin derivatives as a new scaffold that may eventually yield useful compounds in the treatment of bacterial and viral infections.
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Affiliation(s)
- Samina Khan Yusufzai
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
- School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Hasnah Osman
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia.
| | - Mohammad Shaheen Khan
- Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Basma M Abd Razik
- College of Pharmacy, Al-Mustansiriyah University, Baghdad, 10001, Iraq
| | - Mohammed Oday Ezzat
- College of Education for Women, University of Anbar, Ramadi, Anbar, 31001, Iraq
| | - Suriyati Mohamad
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Othman Sulaiman
- School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Jualang Azlan Gansau
- Biotechnology Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia
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Synthesis, X-ray crystallographic study, pharmacology and docking of hydrazinyl thiazolyl coumarins as dengue virus NS2B/NS3 serine protease inhibitors. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2179-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Perera SD, Jayawardena UA, Jayasinghe CD. Potential Use of Euphorbia hirta for Dengue: A Systematic Review of Scientific Evidence. J Trop Med 2018; 2018:2048530. [PMID: 29849664 PMCID: PMC5926475 DOI: 10.1155/2018/2048530] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/12/2018] [Indexed: 12/22/2022] Open
Abstract
Euphorbia hirta commonly known as Tawa-Tawa is a plant used in folklore medicine in the Philippines for the treatment of dengue. Though, E. hirta has been extensively investigated for numerous bioactivities, limited studies have been conducted on the antidengue activity. Thus, the present study provides a comprehensive review of studies conducted on the antidengue activity of E. hirta. A systematic literature survey was carried out in scientific databases, PubMed®, Scopus, and Google Scholar, for research carried on the antidengue activity of E. hirta. The literature search identified a total of 867 articles: databases PubMed = 6, Scopus SciVerse® = 423, and Google Scholar = 437; one additional article was identified by searching reference lists. Eight full papers were entitled to the review; out of those, two studies focused on ethnobotanical surveys, three on animal experiments, one on human trial, and two on in vitro antiviral activities, and one was computational study. The available evidence conclusively demonstrates the potential of E. hirta against dengue as it holds significant antiviral and platelet increasing activities. However, the number of studies conducted to validate its antidengue activity was found to be inadequate. Hence, well-controlled clinical trials and contemporary pharmacological approaches including activity guided fractionation and elucidation of the mode of action are encouraged to establish the use of E. hirta for dengue.
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Affiliation(s)
- Sashini D. Perera
- Department of Zoology, Faculty of Natural Sciences, The Open University of Sri Lanka, Nawala, Nugegoda, Sri Lanka
| | - Uthpala A. Jayawardena
- Department of Zoology, Faculty of Natural Sciences, The Open University of Sri Lanka, Nawala, Nugegoda, Sri Lanka
| | - Chanika D. Jayasinghe
- Department of Zoology, Faculty of Natural Sciences, The Open University of Sri Lanka, Nawala, Nugegoda, Sri Lanka
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Huang YW, Lee CT, Wang TC, Kao YC, Yang CH, Lin YM, Huang KS. The Development of Peptide-based Antimicrobial Agents against Dengue Virus. Curr Protein Pept Sci 2018; 19:998-1010. [PMID: 29852867 PMCID: PMC6446661 DOI: 10.2174/1389203719666180531122724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/20/2018] [Accepted: 05/25/2018] [Indexed: 11/22/2022]
Abstract
Dengue fever has become an imminent threat to international public health because of global warming and climate change. The World Health Organization proclaimed that more than 50% of the world's population is at risk of dengue virus (DENV) infection. Therefore, developing a clinically approved vaccine and effective therapeutic remedy for treating dengue fever is imperative. Peptide drug development has become a novel pharmaceutical research field. This article reviews various peptidesbased antimicrobial agents targeting three pathways involved in the DENV lifecycle. Specifically, they are peptide vaccines from immunomodulation, peptide drugs that inhibit virus entry, and peptide drugs that interfere with viral replication. Many antiviral peptide studies against DENV have been conducted in animal model trials, and progression to clinical trials for these promising peptide drugs is anticipated.
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Affiliation(s)
| | | | | | | | | | | | - Keng-Shiang Huang
- Address correspondence to this author at the School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung, Taiwan;, Tel: +886-988-399-979; E-mail:
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Sheikhlar A, Meng GY, Alimon R, Romano N, Ebrahimi M. Dietary Euphorbia hirta Extract Improved the Resistance of Sharptooth Catfish Clarias gariepinus to Aeromonas hydrophila. JOURNAL OF AQUATIC ANIMAL HEALTH 2017; 29:225-235. [PMID: 28937913 DOI: 10.1080/08997659.2017.1374310] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Aqueous and methanol extracts of lemon Citrus limon peel, Euphorbia hirta (aerial parts), and fenugreek Trigonella foenum-graecum seeds were tested for their in vitro antimicrobial activities against the bacterium Aeromonas hydrophila. A swab paper disk method showed that the methanol extract of E. hirta (EHE) had the largest inhibition zone and the lowest minimal inhibitory concentration compared to all other herbal extracts. Based on these results, EHE was included in the diets of Sharptooth Catfish Clarias gariepinus at 0 (control), 2, 5, or 7 g/kg of diet (experiment 1). Each treatment was conducted in triplicate, with 30 fish (mean weight ± SE = 9.4 ± 0.4 g) in each replicate. After 30 d, the growth, feed intake, hepatosomatic index (HSI), and plasma biochemical parameters were measured. With a separate batch of Sharptooth Catfish, the efficacy of the EHE diets in conferring fish resistance to A. hydrophila over 30 d was compared to that of a diet containing oxytetracycline (OTC; experiment 2). Six treatments were conducted in triplicate groups of 30 fish (mean weight ± SE = 9.0 ± 0.3 g); the Control fish were fed the control diet and were not injected with A. hydrophila, while the Control-AH and OTC-AH groups were infected with A. hydrophila and were fed either the control diet or the diet containing OTC at 1 g/199 g. The other three treatments included fish that were injected with A. hydrophila but fed diets with increasing EHE at 2, 5, or 7 g/kg. Experiment 1 showed no change to growth, feeding efficiency, HSI, or plasma biochemical parameters. In experiment 2, however, fish that were fed dietary EHE at 5 g/kg had significantly lower mortality than the Control-AH group, with further resistance observed for fish fed EHE at 7 g/kg. Dietary OTC was more effective than EHE as a prophylactic to A. hydrophila infection in Sharptooth Catfish. Nevertheless, EHE can potentially be a valuable dietary supplement to improve the resistance of Sharptooth Catfish to A. hydrophila infection. Received May 3, 2017; accepted August 24, 2017.
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Affiliation(s)
- Atefeh Sheikhlar
- a Department of Animal Science, Faculty of Agriculture , Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
| | - Goh Yong Meng
- b Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine , Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
- c Institute of Tropical Agriculture , Universiti Putra Malaysia , 43400 Serdang , Malaysia
| | - Razak Alimon
- a Department of Animal Science, Faculty of Agriculture , Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
| | - Nicholas Romano
- d Department of Aquaculture, Faculty of Agriculture , Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
| | - Mahdi Ebrahimi
- b Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine , Universiti Putra Malaysia , 43400 Serdang , Selangor , Malaysia
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Subramaniyan V, Venkatachalam R, Srinivasan P, Palani M. In silico prediction of monovalent and chimeric tetravalent vaccines for prevention and treatment of dengue fever. J Biomed Res 2017; 32:222. [PMID: 29497025 PMCID: PMC6265401 DOI: 10.7555/jbr.31.20160109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 10/27/2017] [Indexed: 11/22/2022] Open
Abstract
Reverse vaccinology method was used to predict the monovalent peptide vaccine candidate to produce antibodies for therapeutic purpose and to predict tetravalent vaccine candidate to act as a common vaccine to cover all the fever dengue virus serotypes. Envelope (E)-proteins of DENV-1-4 serotypes were used for vaccine prediction using NCBI, Uniprot/Swissprot, Swiss-prot viewer, VaxiJen V2.0, TMHMM, BCPREDS, Propred-1, Propred and MHC Pred,. E-proteins of DENV-1-4 serotypes were identified as antigen from which T cell epitopes, through B cell epitopes, were predicted to act as peptide vaccine candidates. Each selected T cell epitope of E-protein was confirmed to act as vaccine and to induce complementary antibody against particular serotype of dengue virus. Chimeric tetravalent vaccine was formed by the conjugation of four vaccines, each from four dengue serotypes to act as a common vaccine candidate for all the four dengue serotypes. It can be justifiably concluded that the monovalent 9-mer T cell epitope for each DENV serotypes can be used to produce specific antibody agaomst dengue virus and a chimeric common tetravalent vaccine candidate to yield a comparative vaccine to cover any of the four dengue virus serotype. This vaccine is expected to act as highly immunogenic against preventing dengue fever.
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Affiliation(s)
- Vijayakumar Subramaniyan
- Computational Phytochemistry Laboratory P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur district, Tamil Nadu 613503, India
| | - Ramesh Venkatachalam
- Computational Phytochemistry Laboratory P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur district, Tamil Nadu 613503, India
| | - Prabhu Srinivasan
- Computational Phytochemistry Laboratory P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur district, Tamil Nadu 613503, India
| | - Manogar Palani
- Computational Phytochemistry Laboratory P.G. and Research Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur district, Tamil Nadu 613503, India
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Fernandez EA. Moving to a Dengue Preventive Treatment Through New Vaccines. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2017. [DOI: 10.1007/s40506-017-0132-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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64
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Masi M, Cimmino A, Tabanca N, Becnel JJ, Bloomquist JR, Evidente A. A survey of bacterial, fungal and plant metabolites against Aedes aegypti (Diptera: Culicidae), the vector of yellow and dengue fevers and Zika virus. OPEN CHEM 2017. [DOI: 10.1515/chem-2017-0019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AbstractAedes aegypti L. is the major vector of the arboviruses responsible for dengue fever, one of the most devastating human diseases. Some bacterial, fungal and plant metabolites belonging to different chemical subgroups, including Amaryllidaceae alkaloids, anthracenes, azoxymethoxytetrahydropyrans, cytochalasans, 2,5-diketopiperazines, isochromanones, naphthoquinones, organic small acids and their methyl esters, sterols and terpenes including sesquiterpenes and diterpenes, were tested for their larvicidal and adulticidal activity against Ae. aegypti. Out of 23 compounds tested, gliotoxin exhibited mosquitocidal activity in both bioassays with an LC50 value of 0.0257 ± 0.001 µg/µL against 1st instar Ae. aegypti and LD50 value of 2.79 ± 0.1197 µg/mosquito against adult female Ae. aegypti. 2-Methoxy-1,4-naphthoquinone and cytochalasin A showed LC50 values of 0.0851 ± 0.0012 µg/µL and 0.0854 ± 0.0019 µg/µL, respectively, against Ae. aegypti larvae. In adult bioassays, fusaric acid (LD50= 0.8349 ± 0.0118 µg/mosquito), 3-nitropropionic acid (LD50 = 1.6641 ± 0.0494 µg/mosquito) and α-costic acid (LD50 = 2.547 ± 0.0835 µg/mosquito) exhibited adulticidal activity. Results from the current study confirm that compounds belonging to cytochalsin, diketopiperazine, naphthoquinone and low molecular weight organic acid groups are active and may stimulate further SAR investigations.
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Affiliation(s)
- Marco Masi
- Dipartimento di Science Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Via Cintia4, 80126, Italy
| | - Alessio Cimmino
- Dipartimento di Science Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Via Cintia4, 80126, Italy
| | - Nurhayat Tabanca
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
- USDA-ARS, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL 32608, USA
- USDA-ARS, Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158 USA
| | - James J. Becnel
- USDA-ARS, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL 32608, USA
| | - Jeffrey R. Bloomquist
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Antonio Evidente
- Dipartimento di Science Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Via Cintia4, 80126, Italy
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Frederico ÉHFF, Cardoso ALBD, Moreira-Marconi E, de Sá-Caputo DDC, Guimarães CAS, Dionello CDF, Morel DS, Paineiras-Domingos LL, de Souza PL, Brandão-Sobrinho-Neto S, Carvalho-Lima RP, Guedes-Aguiar EDO, Costa-Cavalcanti RG, Kutter CR, Bernardo-Filho M. ANTI-VIRAL EFFECTS OF MEDICINAL PLANTS IN THE MANAGEMENT OF DENGUE: A SYSTEMATIC REVIEW. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES : AJTCAM 2017; 14:33-40. [PMID: 28740942 PMCID: PMC5514443 DOI: 10.21010/ajtcam.v14i4s.5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
BACKGROUND Dengue is considered as an important arboviral disease. Safe, low-cost, and effective drugs that possess inhibitory activity against dengue virus (DENV) are mostly needed to try to combat the dengue infection worldwide. Medicinal plants have been considered as an important alternative to manage several diseases, such as dengue. As authors have demonstrated the antiviral effect of medicinal plants against DENV, the aim of this study was to review systematically the published research concerning the use of medicinal plants in the management of dengue using the PubMed database. MATERIALS AND METHODS Search and selection of publications were made using the PubMed database following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA statement). RESULTS Six publications met the inclusion criteria and were included in the final selection after thorough analysis. CONCLUSION It is suggested that medicinal plants' products could be used as potential anti-DENV agents.
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Affiliation(s)
- Éric Heleno Freira Ferreira Frederico
- Programa de Pós-graduação em Biociências, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
- Corresponding Author E-mail Address:
| | - André Luiz Bandeira Dionísio Cardoso
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Eloá Moreira-Marconi
- Programa de Pós-Graduação em Fisiopatologia Clínica e Experimental, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Danúbia da Cunha de Sá-Caputo
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Carlos Alberto Sampaio Guimarães
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Carla da Fontoura Dionello
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Danielle Soares Morel
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Laisa Liane Paineiras-Domingos
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Patricia Lopes de Souza
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Samuel Brandão-Sobrinho-Neto
- Mestrado Profissional em Saúde, Medicina Laboratorial e Tecnologia Forense, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Av. Marechal Rondon, Rio de Janeiro, 20950-003, RJ, Brasil
| | - Rafaelle Pacheco Carvalho-Lima
- Mestrado Profissional em Saúde, Medicina Laboratorial e Tecnologia Forense, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Av. Marechal Rondon, Rio de Janeiro, 20950-003, RJ, Brasil
| | - Eliane de Oliveira Guedes-Aguiar
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Rebeca Graça Costa-Cavalcanti
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Cristiane Ribeiro Kutter
- Mestrado Profissional em Saúde, Medicina Laboratorial e Tecnologia Forense, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Av. Marechal Rondon, Rio de Janeiro, 20950-003, RJ, Brasil
| | - Mario Bernardo-Filho
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
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Paul A, Vibhuti A, Raj S. Rise of mosquito bites in India: A comprehensive study on dengue. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2016. [DOI: 10.1016/s2222-1808(16)61159-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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67
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Masi M, van der Westhuyzen AE, Tabanca N, Evidente M, Cimmino A, Green IR, Bernier UR, Becnel JJ, Bloomquist JR, van Otterlo WAL, Evidente A. Sarniensine, a mesembrine-type alkaloid isolated from Nerine sarniensis, an indigenous South African Amaryllidaceae, with larvicidal and adulticidal activities against Aedes aegypti. Fitoterapia 2016; 116:34-38. [PMID: 27864138 DOI: 10.1016/j.fitote.2016.11.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/10/2016] [Accepted: 11/14/2016] [Indexed: 10/20/2022]
Abstract
A new mesembrine-type alkaloid, named sarniensine, was isolated together with tazettine, lycorine, the main alkaloid, and 3-epimacronine from Nerine sarniensis, with the last two produced for the first time by this plant. This Amaryllidaceae, which is indigenous of South Africa, was investigated for its alkaloid content, because the organic extract of its bulbs showed strong larvicidal activity with an LC50 value of 0.008μgμL-1 against first instar Aedes aegypti larvae and with an LD50 value 4.6μg/mosquito against adult female Ae. aegypti, which is the major vector for dengue, yellow fever and the Zika virus. The extract did not show repellency at MED value of 0.375mgcm2 against adult Ae. aegypti. Sarniensine was characterized using spectroscopic and chiroptical methods as (3aR,4Z,6S,7aS)-6-methoxy-3a-(2'-methoxymethyl-benzo [1,3]dioxol-1'-yl)-1-methyl-2,3,3a,6,7,7a-hexahydro-1H-indole. It was less effective against larva at the lowest concentration of 0.1μgμL-1, however it showed strong adulticidal activity with an LD50 value of 1.38±0.056μgmosquito-1.
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Affiliation(s)
- Marco Masi
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Alet E van der Westhuyzen
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland, 7602 Stellenbosch, South Africa
| | - Nurhayat Tabanca
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA; USDA-ARS, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL 32608, USA
| | - Marco Evidente
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Alessio Cimmino
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Ivan R Green
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland, 7602 Stellenbosch, South Africa
| | - Ulrich R Bernier
- USDA-ARS, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL 32608, USA
| | - James J Becnel
- USDA-ARS, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL 32608, USA
| | - Jeffrey R Bloomquist
- Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Willem A L van Otterlo
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland, 7602 Stellenbosch, South Africa
| | - Antonio Evidente
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy.
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Sharma N, Mishra KP, Ganju L. Salidroside exhibits anti-dengue virus activity by upregulating host innate immune factors. Arch Virol 2016; 161:3331-3344. [PMID: 27581807 DOI: 10.1007/s00705-016-3034-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/25/2016] [Indexed: 01/20/2023]
Abstract
Dengue is an arboviral disease with no effective therapy available. Therefore, there is an urgent need to find a potent antiviral agent against dengue virus (DENV). In the present study, salidroside, a main bioactive compound of Rhodiola rosea, was evaluated for its antiviral potential against DENV serotype-2 infection and its effect on host innate immune factors. Antiviral effects of salidroside were examined in DENV-infected cells by western blotting, flow cytometry and real-time PCR. Its underlying mechanism involved in antiviral action was determined by evaluating expression of host innate immune factors including RIG-I, IRF-3, IRF-7, PKR, P-eIF2α and NF-κB. Salidroside potently inhibited DENV infection by decreasing DENV envelope protein expression more than tenfold. Salidroside exerts its antiviral activity by increasing expression of RNA helicases such as RIG-I, thereby initiating a downstream signaling cascade that induces upregulation of IRF-3 and IRF-7. It prevents viral protein synthesis by increasing the expression of PKR and P-eIF2α while decreasing NF-κB expression. It was also found to induce the expression of IFN-α. In addition, the number of NK cells and CD8+ T cells were also found to be increased by salidroside treatment in human PBMCs, which are important in limiting DENV replication during early stages of infection. The findings presented here suggest that salidroside exhibits antiviral activity against DENV by inhibiting viral protein synthesis and boosting host immunity by increasing the expression of host innate immune factors and hence could be considered for the development of an effective therapeutic agent against DENV infection.
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Affiliation(s)
- Navita Sharma
- Immunomodulation Laboratory, Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, Delhi, 110054, India
| | - K P Mishra
- Immunomodulation Laboratory, Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, Delhi, 110054, India.
| | - Lilly Ganju
- Immunomodulation Laboratory, Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Lucknow Road, Timarpur, Delhi, 110054, India
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Bagheri SM, Hedesh ST, Mirjalili A, Dashti-R MH. Evaluation of Anti-inflammatory and Some Possible Mechanisms of Antinociceptive Effect of Ferula assa foetida Oleo Gum Resin. J Evid Based Complementary Altern Med 2016; 21:271-6. [DOI: 10.1177/2156587215605903] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 08/02/2015] [Indexed: 11/16/2022] Open
Abstract
Asafetida is well known for its medicinal and therapeutic values in Iranian folk medicine. This study was conducted to investigate the antinociceptive and anti-inflammatory effects of asafetida. In hot plate test, asafetida exhibited a significant antinociceptive effect at all administered doses and the most effective dose was 10 mg/kg. The highest maximum potent effect was observed 15 minutes after asafetida administration. The antinociceptive effect of asafetida was not reversed by administration of any antagonist used in this study but asafetida showed a remarkable antioxidant and also inhibitory action against lipoxygenase activity. Paw weight was significantly reduced only in treated animals with 2.5 mg/kg asafetida. Results clearly indicate that the asafetida could be a potential source of anti-inflammatory and analgesic agent. These effects may be due to its effective constituents such as monoterpenes, flavonoids and phenolic components that have antioxidant properties and inhibit lipoxygenase activity.
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Affiliation(s)
- Seyyed Majid Bagheri
- Department of Physiology, Shahid Sadoghi University of Medical Sciences, Yazd, Iran
| | | | - Aghdas Mirjalili
- Department of Anatomy, Shahid Sadoghi University of medical Sciences, Yazd, Iran
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Leite FC, da Silva Mello C, Fialho LL, Marinho CF, de Araujo Lima AL, Filho JMB, Kubelka CF, Piuvezam MR. Cissampelos sympodialis has anti-viral effect inhibiting dengue non-structural viral protein-1 and pro-inflammatory mediators. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2016. [DOI: 10.1016/j.bjp.2016.03.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Baldé AM, Traoré MS, Baldé MA, Barry MS, Diallo A, Camara M, Traoré S, Kouyaté M, Traoré S, Ouo-Ouo S, Myanthé AL, Keita N, Haba NL, Goumou K, Bah F, Camara A, Diallo MST, Sylla M, Baldé ES, Diané S, Pieters L, Oularé K. Ethnomedical and ethnobotanical investigations on the response capacities of Guinean traditional health practioners in the management of outbreaks of infectious diseases: The case of the Ebola virus epidemic. JOURNAL OF ETHNOPHARMACOLOGY 2016; 182:137-149. [PMID: 26900129 DOI: 10.1016/j.jep.2016.02.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 01/17/2016] [Accepted: 02/16/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The recent outbreak of Ebola virus infections has mostly remained confined to the West African countries Guinea-Conakry, Sierra-Leone and Liberia. Due to intense national and international mobilizations, a significant reduction in Ebola virus transmission has been recorded. While international efforts focus on new vaccines, medicines and diagnostics, no coherent national or international approach exists to integrate the potential of the traditional health practitioners (THPs) in the management of infectious diseases epidemics. Nevertheless, the first contact of most of the Ebola infected patients is with the THPs since the symptoms are similar to those of common traditionally treated diseases or symptoms such as malaria, hemorrhagic syndrome, typhoid or other gastrointestinal diseases, fever and vomiting. MATERIALS AND METHODS In an ethnomedical survey conducted in the 4 main Guinean regions contacts were established with a total of 113 THPs. The socio-demographic characteristics, the professional status and the traditional perception of Ebola Virus Disease (EVD) were recorded. RESULTS The traditional treatment of the main symptoms was based on 47 vegetal recipes which were focused on the treatment of diarrhea (22 recipes), fever (22 recipes), vomiting (2 recipes), external antiseptic (2 recipes), hemorrhagic syndrome (2 recipes), convulsion and dysentery (one recipe each). An ethnobotanical survey led to the collection of 54 plant species from which 44 identified belonging to 26 families. The most represented families were Euphorbiaceae, Caesalpiniaceae and Rubiaceae. Literature data on the twelve most cited plant species tends to corroborate their traditional use and to highlight their pharmacological potential. CONCLUSIONS It is worth to document all available knowledge on the traditional management of EVD-like symptoms in order to evaluate systematically the anti-Ebola potential of Guinean plant species.
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Affiliation(s)
- A M Baldé
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Département de Pharmacie, Facultéde Médecine - Pharmacie - Odonto-Stomatologie, Université Gamal Abdel Nasser de Conakry, Guinea.
| | - M S Traoré
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Département de Pharmacie, Facultéde Médecine - Pharmacie - Odonto-Stomatologie, Université Gamal Abdel Nasser de Conakry, Guinea
| | - M A Baldé
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Département de Pharmacie, Facultéde Médecine - Pharmacie - Odonto-Stomatologie, Université Gamal Abdel Nasser de Conakry, Guinea
| | - M S Barry
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Faculté des Sciences, Université Julius Nyéréréde Kankan, Guinea
| | - A Diallo
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - M Camara
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - S Traoré
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - M Kouyaté
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - S Traoré
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - S Ouo-Ouo
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - A L Myanthé
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - N Keita
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Faculté des Sciences, Université Julius Nyéréréde Kankan, Guinea
| | - N L Haba
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Faculté des Sciences, Université Julius Nyéréréde Kankan, Guinea
| | - K Goumou
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Faculté des Sciences, Université Julius Nyéréréde Kankan, Guinea
| | - F Bah
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Faculté des Sciences, Université Julius Nyéréréde Kankan, Guinea
| | - A Camara
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Département de Pharmacie, Facultéde Médecine - Pharmacie - Odonto-Stomatologie, Université Gamal Abdel Nasser de Conakry, Guinea
| | - M S T Diallo
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Département de Pharmacie, Facultéde Médecine - Pharmacie - Odonto-Stomatologie, Université Gamal Abdel Nasser de Conakry, Guinea
| | - M Sylla
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Département de Pharmacie, Facultéde Médecine - Pharmacie - Odonto-Stomatologie, Université Gamal Abdel Nasser de Conakry, Guinea
| | - E S Baldé
- Département de Pharmacie, Facultéde Médecine - Pharmacie - Odonto-Stomatologie, Université Gamal Abdel Nasser de Conakry, Guinea
| | - S Diané
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea
| | - L Pieters
- Department of Pharmaceutical Sciences, University of Antwerp, Belgium
| | - K Oularé
- Centre de Recherche et de Valorisation des Plantes Médicinales (CRVPM) de Dubréka, Guinea; Faculté des Sciences, Université Julius Nyéréréde Kankan, Guinea
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Poloni TR, Dornas FP, Dos Santos NN, Soares AM, Amarilla AA, Alfonso HL, Trigueiro S, Lavrador MAS, Yamamoto AY, Aquino VH. High prevalence of clinically unsuspected dengue disease among children in Ribeirao Preto city, Brazil. J Med Virol 2016; 88:1711-9. [PMID: 27004990 DOI: 10.1002/jmv.24533] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2016] [Indexed: 11/12/2022]
Abstract
The aim of this study was to analyze the characteristics of Dengue virus (DENV)-infected children and the accuracy of dengue diagnosis based on clinical presentations. The inclusion criteria were children ≥1-year-old presenting febrile illness with 1-7 days of onset. Children (n = 110) aged 2-15 years were included in this study. DENV infection was confirmed with virological tests using serum, salvia, and/or urine samples. The attending pediatricians classified 56/110 (50.91%) of the children as suspected dengue cases. The DENV infection was confirmed by specific laboratory tests in 52/56 (92.9%) of the suspected dengue cases but also in 44/54 (81.5%) of the unsuspected dengue cases; total of 96/110 (87.27%) confirmed dengue cases. The clinical diagnosis gave an overall sensitivity of 54.2% (52/96) and a specificity of 71.4% (10/14). The positive predictive value of the clinical diagnosis was 92.8% and negative predictive value was 18.5%. After the third day of onset of symptoms, the DENV genome detection rate was similar in serum and saliva samples, suggesting that saliva samples represent an alternative to blood samples for early dengue diagnosis. Vaccination against Yellow fever virus did not influence the antibody response against DENV-1, DENV-2, and DENV-3, which circulated during the study period. Although the signs and symptoms were compatible with dengue, the attending pediatricians did not suspect the disease in several children. Therefore, the inclusion of virological tests for early diagnosis in the protocols for dengue surveillance would help in the implementation of prompt treatment of patients and epidemic containment strategies. J. Med. Virol. 88:1711-1719, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Telma Regina Poloni
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Fabio Pio Dornas
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Nilton Nascimento Dos Santos
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Adriana Moreira Soares
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Alberto Anastacio Amarilla
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Helda Liz Alfonso
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Sabrina Trigueiro
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Marco Aurélio Sicchiroli Lavrador
- Laboratory of Bioinformatics and Biostatistics, Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Aparecida Yulie Yamamoto
- Department of Pediatrics, School of Medicine of Ribeirao Preto, University of São Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Victor Hugo Aquino
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
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Zidorn C. Secondary metabolites of seagrasses (Alismatales and Potamogetonales; Alismatidae): Chemical diversity, bioactivity, and ecological function. PHYTOCHEMISTRY 2016; 124:5-28. [PMID: 26880288 DOI: 10.1016/j.phytochem.2016.02.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 12/30/2015] [Accepted: 02/07/2016] [Indexed: 05/06/2023]
Abstract
Seagrasses are the only higher plants living in fully marine environments; they play a significant role in coastal ecosystems. Seagrasses inhabit the coastal shelves of all continents except Antarctica and can grow in depths of up to 90 m. Because of their eminent ecological importance, innumerous studies have been dedicated to seagrasses and their ecology. However, the phytochemistry has not been equally well investigated yet and many of the existing studies in chemical ecology are only investigating the chemistry at the level of compound classes, e.g. phenolics, and not at the level of chemically defined metabolites. In the present review, the existing literature on secondary metabolites of seagrasses, their known source seagrasses, their bioactivity, and ecological function are compiled and critically assessed. Moreover, research gaps are highlighted and avenues for future research are discussed. Currently, a total of 154 chemically defined natural products have been reported from the about 70 seagrass species known worldwide. Compounds reported include simple phenols derivatives (four compounds), phenylmethane derivatives (14 compounds), phenylethane derivatives (four compounds), phenylpropane derivatives including their esters and dimers (20 compounds), chalkones (four compounds), flavonoids including catechins (57 compounds), phenylheptanoids (four compounds), one monoterpene derivative, one sesquiterpene, diterpenoids (13 compounds), steroids (31 compounds), and one alkaloid. Most of the existing bioactivity studies of seagrass metabolites and extracts have been directed to potential cytotoxic, antimicrobial, or antimacrofouling activity. Antimicrobial studies have been performed towards panels of both human pathogens and ecologically relevant pathogens. In the antimacrofouling studies, investigations of the potential of zosteric acid from the genus Zostera are the most numerous and have yielded so far the most interesting results. Studies on the chemical ecology of seagrasses often have been focused on variation in phenolic compounds and include but are not limited to studies on variation due to abiotic factors, seasonal variation, variation in response to grazing by fish or sea urchins, or following microbial attack.
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Affiliation(s)
- Christian Zidorn
- Institute of Pharmacy, Department of Pharmacognosy, University of Innsbruck, CCB, Innrain 80-82, Innsbruck, Austria.
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74
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Rebensburg S, Helfer M, Schneider M, Koppensteiner H, Eberle J, Schindler M, Gürtler L, Brack-Werner R. Potent in vitro antiviral activity of Cistus incanus extract against HIV and Filoviruses targets viral envelope proteins. Sci Rep 2016; 6:20394. [PMID: 26833261 PMCID: PMC4735868 DOI: 10.1038/srep20394] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 12/31/2015] [Indexed: 12/31/2022] Open
Abstract
Novel therapeutic options are urgently needed to improve global treatment of virus infections. Herbal products with confirmed clinical safety features are attractive starting material for the identification of new antiviral activities. Here we demonstrate that Cistus incanus (Ci) herbal products inhibit human immunodeficiency virus (HIV) infections in vitro. Ci extract inhibited clinical HIV-1 and HIV-2 isolates, and, importantly, a virus isolate with multiple drug resistances, confirming broad anti-HIV activity. Antiviral activity was highly selective for virus particles, preventing primary attachment of the virus to the cell surface and viral envelope proteins from binding to heparin. Bioassay-guided fractionation indicated that Ci extract contains numerous antiviral compounds and therefore has favorably low propensity to induce virus resistance. Indeed, no resistant viruses emerged during 24 weeks of continuous propagation of the virus in the presence of Ci extracts. Finally, Ci extracts also inhibited infection by virus particles pseudotyped with Ebola and Marburg virus envelope proteins, indicating that antiviral activity of Ci extract extends to emerging viral pathogens. These results demonstrate that Ci extracts show potent and broad in vitro antiviral activity against viruses that cause life-threatening diseases in humans and are promising sources of agents that target virus particles.
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Affiliation(s)
- Stephanie Rebensburg
- Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Virology, Oberschleißheim
| | - Markus Helfer
- Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Virology, Oberschleißheim
| | - Martha Schneider
- Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Virology, Oberschleißheim
| | - Herwig Koppensteiner
- Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Virology, Oberschleißheim
| | - Josef Eberle
- Ludwig Maximilian’s University, Max von Pettenkofer Institute, Munich
| | - Michael Schindler
- Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Virology, Oberschleißheim
- University Hospital of Tübingen, Department of Medical Virology and Epidemiology of Viral Diseases, Tübingen
| | - Lutz Gürtler
- Ludwig Maximilian’s University, Max von Pettenkofer Institute, Munich
| | - Ruth Brack-Werner
- Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt, Institute of Virology, Oberschleißheim
- German Center for Infection Research, partner site Munich, Germany
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75
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Ching S, Ramachandran V, Gew LT, Lim SMS, Sulaiman WAW, Foo YL, Zakaria ZA, Samsudin NH, Lau PCMC, Veettil SK, Hoo F. Complementary alternative medicine use among patients with dengue fever in the hospital setting: a cross-sectional study in Malaysia. Altern Ther Health Med 2016; 16:37. [PMID: 26825057 PMCID: PMC4731995 DOI: 10.1186/s12906-016-1017-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 01/23/2016] [Indexed: 02/03/2023]
Abstract
BACKGROUND In Malaysia, the number of reported cases of dengue fever demonstrates an increasing trend. Since dengue fever has no vaccine or antiviral treatment available, it has become a burden. Complementary and alternative medicine (CAM) has become one of the good alternatives to treat the patients with dengue fever. There is limited study on the use of CAM among patients with dengue fever, particularly in hospital settings. This study aims to determine the prevalence, types, reasons, expenditure, and resource of information on CAM use among patients with dengue fever. METHODS This is a descriptive, cross-sectional study of 306 patients with dengue fever, which was carried out at the dengue clinic of three hospitals. Data were analysed using IBM SPSS Statistics version 21.0 and logistic regression analysis was used to determine the factors associated with CAM use. RESULTS The prevalence of CAM use was 85.3% among patients with dengue fever. The most popular CAMs were isotonic drinks (85.8%), crab soup (46.7%) and papaya leaf extract (22.2%). The most common reason for CAM use was a good impression of CAM from other CAM users (33.3%). The main resource of information on CAM use among patients with dengue fever was family (54.8%). In multiple logistic regression analysis, dengue fever patients with a tertiary level are more likely to use CAM 5.8 (95% confidence interval (CI 1.62-20.45) and 3.8 (95% CI 1.12-12.93) times than secondary level and primary and below respectively. CONCLUSION CAM was commonly used by patients with dengue fever. The predictor of CAM use was a higher level of education.
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McGuigan C, Serpi M, Slusarczyk M, Ferrari V, Pertusati F, Meneghesso S, Derudas M, Farleigh L, Zanetta P, Bugert J. Anti-flavivirus Activity of Different Tritylated Pyrimidine and Purine Nucleoside Analogues. ChemistryOpen 2016; 5:227-35. [PMID: 27551659 PMCID: PMC4984408 DOI: 10.1002/open.201500216] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Indexed: 12/19/2022] Open
Abstract
A series of tritylated and dimethoxytritylated analogues of selected pyrimidine and purine nucleosides were synthesized and evaluated for their in vitro inhibitory activity against two important members of the genus Flavivirus in the Flaviviridae family, the yellow fever (YFV) and dengue viruses (DENV). Among all compounds tested, the 5′‐O‐tritylated and the 5′‐O‐dimethoxytritylated 5‐fluorouridine derivatives exerted potency against YFV. Interestingly in the series of purine analogues, the 5′O, N‐bis‐tritylated fludarabine derivative revealed strong inhibitory activity against DENV at μm concentrations, however significantly weaker potency against YFV.
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Affiliation(s)
- Christopher McGuigan
- School of Pharmacy and Pharmaceutical Sciences Cardiff University King Edward VII Avenue Cardiff CF10 3NB United Kingdom
| | - Michaela Serpi
- School of Pharmacy and Pharmaceutical Sciences Cardiff University King Edward VII Avenue Cardiff CF10 3NB United Kingdom
| | - Magdalena Slusarczyk
- School of Pharmacy and Pharmaceutical Sciences Cardiff University King Edward VII Avenue Cardiff CF10 3NB United Kingdom
| | - Valentina Ferrari
- School of Pharmacy and Pharmaceutical Sciences Cardiff University King Edward VII Avenue Cardiff CF10 3NB United Kingdom
| | - Fabrizio Pertusati
- School of Pharmacy and Pharmaceutical Sciences Cardiff University King Edward VII Avenue Cardiff CF10 3NB United Kingdom
| | - Silvia Meneghesso
- School of Pharmacy and Pharmaceutical Sciences Cardiff University King Edward VII Avenue Cardiff CF10 3NB United Kingdom
| | - Marco Derudas
- School of Pharmacy and Pharmaceutical Sciences Cardiff University King Edward VII Avenue Cardiff CF10 3NB United Kingdom
| | - Laura Farleigh
- Medical Microbiology and Infectious Diseases School of Medicine Cardiff University Heath Park Cardiff CF14 4XN United Kingdom
| | - Paola Zanetta
- Medical Microbiology and Infectious Diseases School of Medicine Cardiff University Heath Park Cardiff CF14 4XN United Kingdom
| | - Joachim Bugert
- Medical Microbiology and Infectious Diseases School of Medicine Cardiff University Heath Park Cardiff CF14 4XN United Kingdom
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77
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Ahmad A, Kaleem M, Ahmed Z, Shafiq H. Therapeutic potential of flavonoids and their mechanism of action against microbial and viral infections—A review. Food Res Int 2015. [DOI: 10.1016/j.foodres.2015.06.021] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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78
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Papyracillic acid and its derivatives as biting deterrents against Aedes aegypti (Diptera: Culicidae): structure–activity relationships. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1439-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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79
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Bagheri SM, Keyhani L, Heydari M, Dashti-R MH. Antinociceptive activity of Astragalus gummifer gum (gum tragacanth) through the adrenergic system: A in vivo study in mice. J Ayurveda Integr Med 2015; 6:19-23. [PMID: 25878459 PMCID: PMC4395923 DOI: 10.4103/0975-9476.146543] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 04/19/2014] [Accepted: 05/22/2014] [Indexed: 12/24/2022] Open
Abstract
Background: In Iranian traditional medicine, gum obtained from Astragalus gummifer and some other species of Astragalus was used as analgesic agent. Objective: In this study, we investigated the antinociceptive effect of several concentrations (125, 250, and 500 μg/kg body weight) of Astragalus gummifer gum (AGG) on thermal and acetic acid induced pain in mice. Materials and Methods: AGG was dissolved in distillated water and injected i.p to male mice 15 minute before the onset of experiment. Writhing and hot-plate tests were applied to study the analgesic effect of AGG and compared with that of diclofenac sodium (30 mg/kg, i.p.) or morphine (8 mg/kg, i.p). To investigate the mechanisms involved in antinociception, yohimbine, naloxone, glibenclamide, and theophylline were used in writhing test. These drugs were injected intraperitoneally 15 min before the administration of AGG. The number of writhes were counted in 30 minutes and analyzed. Results: AGG exhibited a significant antinociceptive effect and the most effective dose of AGG was 500 μg/kg. The most maximum possible effect (%MPE) was observed (117.4%) 15 min after drug administration. The %inhibition of acetic acid-induced writhing in AGG 125, 250 and 500 was 47%, 50% and 54% vs %15 of control and 66.3% of diclofenac sodium group. The antinociceptive effect induced by this gum in the writhing test was reversed by the systemic administration of yohimbine (α2-adrenergic antagonist), but naloxone, glibenclamide, and theophylline did not reverse this effect. Conclusions: The findings of this study indicated that AGG induced its antinociceptive through the adrenergic system.
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Affiliation(s)
- Seyyed Majid Bagheri
- Department of Physiology, Shahid Sadoghi University of Medical Sciences, Yazd, Iran
| | - Leila Keyhani
- Department of Biology, Azad Islamic University of Research Sciences, Shiraz, Iran
| | - Mehrangiz Heydari
- Department of Biology, Azad Islamic University of Research Sciences, Shiraz, Iran
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80
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Ruiz-Guerrero R, Rodríguez-Pérez MA, Norzagaray-Campos M. Toxicity of Mexican native plant extracts against larvae of Aedes aegypti (Diptera: Culicidae). Asian Pac J Trop Biomed 2015. [DOI: 10.1016/s2221-1691(15)30347-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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81
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Ethanol extracts of Cassia grandis and Tabernaemontana cymosa inhibit the in vitro replication of dengue virus serotype 2. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(14)60635-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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82
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Subramaniyan V, Venkatachalam R. Analysis of E and NS proteins of dengue serotypes and identification of active binding sites for drug molecule. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(15)60852-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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83
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de Sousa LRF, Wu H, Nebo L, Fernandes JB, da Silva MFDGF, Kiefer W, Kanitz M, Bodem J, Diederich WE, Schirmeister T, Vieira PC. Flavonoids as noncompetitive inhibitors of Dengue virus NS2B-NS3 protease: inhibition kinetics and docking studies. Bioorg Med Chem 2014; 23:466-70. [PMID: 25564380 DOI: 10.1016/j.bmc.2014.12.015] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/02/2014] [Accepted: 12/12/2014] [Indexed: 10/24/2022]
Abstract
NS2B-NS3 is a serine protease of the Dengue virus considered a key target in the search for new antiviral drugs. In this study flavonoids were found to be inhibitors of NS2B-NS3 proteases of the Dengue virus serotypes 2 and 3 with IC50 values ranging from 15 to 44 μM. Agathisflavone (1) and myricetin (4) turned out to be noncompetitive inhibitors of dengue virus serotype 2 NS2B-NS3 protease with Ki values of 11 and 4.7 μM, respectively. Docking studies propose a binding mode of the flavonoids in a specific allosteric binding site of the enzyme. Analysis of biomolecular interactions of quercetin (5) with NT647-NHS-labeled Dengue virus serotype 3 NS2B-NS3 protease by microscale thermophoresis experiments, yielded a dissociation constant KD of 20 μM. Our results help to understand the mechanism of inhibition of the Dengue virus serine protease by flavonoids, which is essential for the development of improved inhibitors.
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Affiliation(s)
- Lorena Ramos Freitas de Sousa
- Departamento de Química, Universidade Federal de São Carlos, Washington Luís Km 235, 13565-905 São Carlos, São Paulo, Brazil; Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Staudinger Weg 5, D-55128 Mainz, Germany
| | - Hongmei Wu
- Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Staudinger Weg 5, D-55128 Mainz, Germany
| | - Liliane Nebo
- Departamento de Química, Universidade Federal de São Carlos, Washington Luís Km 235, 13565-905 São Carlos, São Paulo, Brazil
| | - João Batista Fernandes
- Departamento de Química, Universidade Federal de São Carlos, Washington Luís Km 235, 13565-905 São Carlos, São Paulo, Brazil
| | | | - Werner Kiefer
- Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Staudinger Weg 5, D-55128 Mainz, Germany
| | - Manuel Kanitz
- Institut für Pharmazeutische Chemie,Philipps-Universität Marburg, Marbacher Weg 6, 35032 Marburg, Hessen, Germany
| | - Jochen Bodem
- Institut für Virologie und Immunbiologie, Julius-Maximillians-Universität Würzburg, Versbacher Str. 7, 97078 Würzburg, Germany
| | - Wibke E Diederich
- Institut für Pharmazeutische Chemie,Philipps-Universität Marburg, Marbacher Weg 6, 35032 Marburg, Hessen, Germany
| | - Tanja Schirmeister
- Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Staudinger Weg 5, D-55128 Mainz, Germany
| | - Paulo Cezar Vieira
- Departamento de Química, Universidade Federal de São Carlos, Washington Luís Km 235, 13565-905 São Carlos, São Paulo, Brazil.
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84
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Teixeira RR, Pereira WL, Oliveira AFCDS, da Silva AM, de Oliveira AS, da Silva ML, da Silva CC, de Paula SO. Natural products as source of potential dengue antivirals. Molecules 2014; 19:8151-76. [PMID: 24941340 PMCID: PMC6271820 DOI: 10.3390/molecules19068151] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 12/28/2022] Open
Abstract
Dengue is a neglected disease responsible for 22,000 deaths each year in areas where it is endemic. To date, there is no clinically approved dengue vaccine or antiviral for human beings, even though there have been great efforts to accomplish these goals. Several approaches have been used in the search for dengue antivirals such as screening of compounds against dengue virus enzymes and structure-based computational discovery. During the last decades, researchers have turned their attention to nature, trying to identify compounds that can be used as dengue antivirals. Nature represents a vast reservoir of substances that can be explored with the aim of discovering new leads that can be either used directly as pharmaceuticals or can serve as lead structures that can be optimized towards the development of new antiviral agents against dengue. In this review we describe an assortment of natural products that have been reported as possessing dengue antiviral activity. The natural products are organized into classes of substances. When appropriate, structure-activity relationships are outlined. The biological assays used to assess antiviral activity are briefly described.
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Affiliation(s)
| | - Wagner Luiz Pereira
- Departamento de Química, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | | | | | - André Silva de Oliveira
- Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas, 39900-000 Almenara, MG, Brazil
| | - Milene Lopes da Silva
- Departamento de Química, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
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Vera SS, Zambrano DF, Méndez-Sanchez SC, Rodríguez-Sanabria F, Stashenko EE, Duque Luna JE. Essential oils with insecticidal activity against larvae of Aedes aegypti (Diptera: Culicidae). Parasitol Res 2014; 113:2647-54. [PMID: 24781026 DOI: 10.1007/s00436-014-3917-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 04/11/2014] [Indexed: 10/25/2022]
Abstract
Insecticidal activity of the essential oils (EOs) isolated from Tagetes lucida, Lippia alba, Lippia origanoides, Eucalyptus citriodora, Cymbopogon citratus, Cymbopogon flexuosus, Citrus sinensis, Swinglea glutinosa, and Cananga odorata aromatic plants, grown in Colombia (Bucaramanga, Santander), and of a mixture of L. alba and L. origanoides EOs were evaluated on Aedes (Stegomyia) aegypti Rockefeller larvae. The EOs were extracted by microwave-assisted hydrodistillation and characterized by gas chromatography-mass spectrometry (GC-MS). The main components of the EOs were identified using their linear retention indices and mass spectra. The lethal concentrations (LCs) of the EOs were determined between the third and fourth instar of A. aegypti. LC50 was determined by probit analysis using mortality rates of bioassays. All essential oils tested showed insecticidal activity. The following values were obtained for C. flexuosus (LC50 = 17.1 ppm); C. sinensis (LC50 = 20.6 ppm); the mixture of L. alba and L. origanoides (LC50 = 40.1 ppm); L. alba (LC50 = 42.2 ppm); C. odorata (LC50 = 52.9 ppm); L. origanoides (LC50 = 53.3 ppm); S. glutinosa (LC50 = 65.7 ppm); T. lucida (LC50 = 66.2 ppm); E. citriodora (LC50 = 71.2 ppm); and C. citratus (LC50 = 123.3 ppm). The EO from C. flexuosus, with citral (geranial + neral) as main component, showed the highest larvicidal activity.
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Affiliation(s)
- Sharon Smith Vera
- Center for Research on Tropical Diseases (Centro de Investigación en Enfermedades Tropicales-CINTROP), Faculty of Health, School of Medicine, Department of Basic Sciences, Universidad Industrial de Santander, Bucaramanga, Colombia
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