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Nie WZ, Shen QK, Quan ZS, Guo HY, Li YM. Bioactivities and Structure-Activity Relationships of Usnic Acid Derivatives: A Review. Mini Rev Med Chem 2024; 24:1368-1384. [PMID: 38265368 DOI: 10.2174/0113895575277085231123165546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 01/25/2024]
Abstract
Usnic acid has a variety of biological activities, and has been widely studied in the fields of antibacterial, immune stimulation, antiviral, antifungal, anti-inflammatory and antiparasitic. Based on this, usnic acid is used as the lead compound for structural modification. In order to enhance the biological activity and solubility of usnic acid, scholars have carried out a large number of structural modifications, and found some usnic acid derivatives to be of more potential research value. In this paper, the structural modification, biological activity and structure-activity relationship of usnic acid were reviewed to provide reference for the development of usnic acid derivatives.
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Affiliation(s)
- Wen-Zhe Nie
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Ya-Mei Li
- Department of Pharmacy, Shandong Second Provincial General Hospital, Jinan, Shandong, China
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da Silva F, Rizk YS, das Neves AR, Lourenço EMG, Ferreira AMT, Monteiro MM, de Lima DP, Perdomo RT, Bonfá IS, Toffoli-Kadri MC, Duarte AP, Nunes DM, Martines MAU, Piranda EM, de Arruda CCP. Antileishmanial Activity, Toxicity and Mechanism of Action of Complexes of Sodium Usnate with Lanthanide Ions: Eu(III), Sm(III), Gd(III), Nd(III), La(III) and Tb(III). Int J Mol Sci 2023; 25:413. [PMID: 38203584 PMCID: PMC10779311 DOI: 10.3390/ijms25010413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/09/2023] [Accepted: 09/12/2023] [Indexed: 01/12/2024] Open
Abstract
Leishmaniases are neglected diseases with limited therapeutic options. Diffuse cutaneous leishmaniasis can occur in Brazil due to Leishmania amazonensis. This study details the antileishmanial activity and cytotoxicity of complexes of sodium usnate (SAU) with lanthanide ions ([LnL3 (H2O)x] (Ln = La(III), Nd(III), Gd(III), Tb(III), Eu(III) and Sm(III); L = SAU). All lanthanide complexes were highly active and more potent than SAU against L. amazonensis promastigotes and intracellular amastigotes (Pro: IC50 < 1.50 μM; Ama: IC50 < 7.52 μM). EuL3·3H2O and NdL3·3H2O were the most selective and effective on intracellular amastigotes, with a selectivity index of approximately 7.0. In silico predictions showed no evidence of mutagenicity, tumorigenicity or irritation for all complexes. Treatment with EuL3·3H2O triggered NO release even at the lowest concentration, indicating NO production as a mechanism of action against the parasite. Incubating promastigotes with the lanthanide complexes, particularly with SmL3·4H2O and GdL3·3H2O, led to a change in the mitochondrial membrane potential, indicating the ability of these complexes to target this essential organelle. The same complexes caused cell death through cell membrane disruption, but their relationship with early or late apoptotic processes remains unclear. Thus, the inclusion of lanthanide ions in SAU improves selectivity with a promising mechanism of action targeting the mitochondria.
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Affiliation(s)
- Fernanda da Silva
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil; (F.d.S.); (Y.S.R.); (A.R.d.N.); (E.M.P.)
| | - Yasmin Silva Rizk
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil; (F.d.S.); (Y.S.R.); (A.R.d.N.); (E.M.P.)
| | - Amarith Rodrigues das Neves
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil; (F.d.S.); (Y.S.R.); (A.R.d.N.); (E.M.P.)
| | - Estela Mariana Guimarães Lourenço
- Laboratório de Síntese e Transformação de Moléculas Orgânicas-SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79074-460, Brazil; (E.M.G.L.); (D.P.d.L.)
| | - Alda Maria Teixeira Ferreira
- Laboratório de Imunologia, Biologia Molecular e Bioensaios, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil;
| | - Melquisedeque Mateus Monteiro
- Laboratório de Biologia Molecular e Culturas Celulares, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil; (M.M.M.); (R.T.P.)
| | - Dênis Pires de Lima
- Laboratório de Síntese e Transformação de Moléculas Orgânicas-SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79074-460, Brazil; (E.M.G.L.); (D.P.d.L.)
| | - Renata Trentin Perdomo
- Laboratório de Biologia Molecular e Culturas Celulares, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil; (M.M.M.); (R.T.P.)
| | - Iluska Senna Bonfá
- Laboratório de Farmacologia e Inflamação, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79074-460, Brazil; (I.S.B.); (M.C.T.-K.)
| | - Mônica Cristina Toffoli-Kadri
- Laboratório de Farmacologia e Inflamação, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79074-460, Brazil; (I.S.B.); (M.C.T.-K.)
| | - Adriana Pereira Duarte
- Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79074-460, Brazil; (A.P.D.); (M.A.U.M.)
| | - Daniel Mendes Nunes
- Faculdade de Química, Universidade Estadual de Mato Grosso do Sul (UEMS), Campo Grande 79804-970, Brazil;
| | - Marco Antonio Utrera Martines
- Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79074-460, Brazil; (A.P.D.); (M.A.U.M.)
| | - Eliane Mattos Piranda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil; (F.d.S.); (Y.S.R.); (A.R.d.N.); (E.M.P.)
| | - Carla Cardozo Pinto de Arruda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil; (F.d.S.); (Y.S.R.); (A.R.d.N.); (E.M.P.)
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Yuldasheva N, Acikyildiz N, Akyuz M, Yabo-Dambagi L, Aydin T, Cakir A, Kazaz C. The Synthesis of Schiff bases and new secondary amine derivatives of p-vanillin and evaluation of their neuroprotective, antidiabetic, antidepressant and antioxidant potentials. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Atila Dinçer C, Gökalp C, Getiren B, Yildiz A, Yildiz N. Supercritical carbon dioxide extraction of Usnea longissima (L.) Ach.: Optimization by Box-Behnken design (BBD). Turk J Chem 2021; 45:1248-1256. [PMID: 34707448 PMCID: PMC8517611 DOI: 10.3906/kim-2102-66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/21/2021] [Indexed: 11/29/2022] Open
Abstract
Usnic acid (UA) was extracted from
Usnea longissima
(L.) Ach. in supercritical carbon dioxide (SC-CO2) medium. The selected process parameters were extraction temperature (35–45 °C), amount of co-solvent (0%–5%) and extraction time (5–9 h). These parameters were applied to Box-Behnken design (BBD) belonging to response surface methodology (RSM) to determine optimum process parameters for the highest amount of UA in the extract. g UA/100g lichen, extraction yield % and UA content values were calculated in the range of 0.045–0.317, 2.77–5.4 and 71%–82% in different experimental conditions, respectively. The optimum conditions were predicted as 42 °C, 4.3% (ethanol) and 7.48 h. It was determined that the predicted and experimental values of g UA/100g lichen were compatible, and the suggested model was valid.
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Affiliation(s)
- Ceren Atila Dinçer
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
| | - Ceren Gökalp
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
| | - Bengü Getiren
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
| | - Atila Yildiz
- Department of Biology, Ankara University, Ankara Turkey
| | - Nuray Yildiz
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
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Shyam Sundar M, Lo R, Dračínský M, Klepetářová B. Synthesis and Stereochemical Behavior of Dioxa[6]helicene Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202100583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. Shyam Sundar
- The Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovonáměstí 2 16610 Prague Czech Republic
| | - Rabindranath Lo
- The Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovonáměstí 2 16610 Prague Czech Republic
| | - Martin Dračínský
- The Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovonáměstí 2 16610 Prague Czech Republic
| | - Blanka Klepetářová
- The Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovonáměstí 2 16610 Prague Czech Republic
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New complexes of usnate with lanthanides ions: La(III), Nd(III), Tb(III), Gd(III), synthesis, characterization, and investigation of cytotoxic properties in MCF-7 cells. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Kiliç N, Islakoğlu YÖ, Büyük İ, Gür-Dedeoğlu B, Cansaran-Duman D. Determination of Usnic Acid Responsive miRNAs in Breast Cancer Cell Lines. Anticancer Agents Med Chem 2020; 19:1463-1472. [PMID: 30417797 DOI: 10.2174/1871520618666181112120142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/17/2018] [Accepted: 10/28/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Breast Cancer (BC) is the most common type of cancer diagnosed in women. A common treatment strategy for BC is still not available because of its molecular heterogeneity and resistance is developed in most of the patients through the course of treatment. Therefore, alternative medicine resources as being novel treatment options are needed to be used for the treatment of BC. Usnic Acid (UA) that is one of the secondary metabolites of lichens used for different purposes in the field of medicine and its anti-proliferative effect has been shown in certain cancer types, suggesting its potential use for the treatment. METHODS Anti-proliferative effect of UA in BC cells (MDA-MB-231, MCF-7, BT-474) was identified through MTT analysis. Microarray analysis was performed in cells treated with the effective concentration of UA and UA-responsive miRNAs were detected. Their targets and the pathways that they involve were determined using a miRNA target prediction tool. RESULTS Microarray experiments showed that 67 miRNAs were specifically responsive to UA in MDA-MB-231 cells while 15 and 8 were specific to BT-474 and MCF-7 cells, respectively. The miRNA targets were mostly found to play role in Hedgehog signaling pathway. TGF-Beta, MAPK and apoptosis pathways were also the prominent ones according to the miRNA enrichment analysis. CONCLUSION The current study is important as being the first study in the literature which aimed to explore the UA related miRNAs, their targets and molecular pathways that may have roles in the BC. The results of pathway enrichment analysis and anti-proliferative effects of UA support the idea that UA might be used as a potential alternative therapeutic agent for BC treatment.
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Affiliation(s)
- Nil Kiliç
- Ankara University, Biotechnology Institute, System Biotechnology Advance Research Unit, Tandogan, Ankara, Turkey
| | - Yasemin Ö Islakoğlu
- Ankara University, Biotechnology Institute, System Biotechnology Advance Research Unit, Tandogan, Ankara, Turkey
| | - İlker Büyük
- Ankara University, Science Faculty, Biology Department, Tandogan, Ankara, Turkey
| | - Bala Gür-Dedeoğlu
- Ankara University, Biotechnology Institute, System Biotechnology Advance Research Unit, Tandogan, Ankara, Turkey
| | - Demet Cansaran-Duman
- Ankara University, Biotechnology Institute, System Biotechnology Advance Research Unit, Tandogan, Ankara, Turkey
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Emsen B, Ozdemir O, Engin T, Togar B, Cavusoglu S, Turkez H. Inhibition of growth of U87MG human glioblastoma cells by Usnea longissima Ach. AN ACAD BRAS CIENC 2019; 91:e20180994. [PMID: 31596391 DOI: 10.1590/0001-3765201920180994] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 02/01/2019] [Indexed: 11/22/2022] Open
Abstract
Herbal medicines are efficient to reduce side effects in the fight against glioblastoma, which plays a critical role within brain cancer species. The recent studies designated for testing the effects of lichens that have shown numerous anticancer activities on glioblastoma so far. In the present study, different concentrations of water extract obtained from Usnea longissima Ach. were used in order to determine cytotoxic (via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase tests), antioxidant (via total antioxidant capacity test), pro-oxidant (via total oxidant status test) and genotoxic (via 8-hydroxy-2'-deoxyguanosine test) effects of them on human U87MG-glioblastoma cancer cell lines. Primary mixed glial-neuronal non-cancerous cells from Sprague-Dawley rats were also utilized to measure the effects of treatments on non-cancerous cells. Based on median inhibitory concentration values, the data belonged to non-cancerous cells (2486.71 mg/L) showed distinct towering compared to U87MG (80.93 mg/L) cells. The viability of non-cancerous and U87MG cells exposed to extract is decreased in a dose dependent manner. It was also showed that low concentrations of extract notably increased total antioxidant capacity on non-cancerous cells. In addition, various phenolic compounds in extract were detected through high-performance liquid chromatography. The recent results encourage that extract will be able to have therapeutic potential against glioblastoma.
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Affiliation(s)
- Bugrahan Emsen
- Department of Biology, Kamil Özdağ Faculty of Science, Karamanoğlu Mehmetbey University, İbrahim Öktem Street, 70200, Center, Karaman, Turkey
| | - Ozlem Ozdemir
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Airport Road Street, 25050, Yakutiye, Erzurum, Turkey
| | - Tubanur Engin
- Department of Physiology, Faculty of Veterinary Medicine, Kafkas University, Fevziçakmak, Paşaçayırı Campus, 36100, Center, Kars, Turkey
| | - Basak Togar
- Department of Medical Services and Techniques, Vocational School of Health Services, Bayburt University, 21 February Street, Dede Korkut Campus, 69000, Center, Bayburt, Turkey
| | - Seyda Cavusoglu
- Department of Horticulture, Faculty of Agriculture, Van Yüzüncü Yıl University, Bardakçı, 65090 Tuşba, Van, Turkey
| | - Hasan Turkez
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Airport Road Street, 25050, Yakutiye, Erzurum, Turkey.,Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Via dei Vestini, 31, 66100, Chieti, Italy
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Usnic acid-loaded polyaniline/polyurethane foam wound dressing: preparation and bactericidal activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:33-40. [DOI: 10.1016/j.msec.2018.03.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 02/14/2018] [Accepted: 03/20/2018] [Indexed: 12/27/2022]
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Karthik S, Gandhi T. Dibenzofuran and dibenzothiophene based palladium(ii)/NHC catalysts – synthesis and applications in C–C bond formation. NEW J CHEM 2018. [DOI: 10.1039/c8nj02989j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In the quest for a new ligand system for Pd(ii)/NHCs, we developed new dibenzofuran and dibenzothiophene based palladium N-heterocyclic carbene catalystsD1–D6in good yields and applied it in C–C bond formation.
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Affiliation(s)
- Shanmugam Karthik
- Department of Chemistry
- School of Advanced Sciences
- VIT University
- Vellore 632014
- India
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Nithya P, Simpson J, Govindarajan S. Template synthesis, structural variation, thermal behavior and antimicrobial screening of Mn(II), Co(II) and Ni(II) complexes of Schiff base ligands derived from benzyl carbazate and three isomers of acetylpyridine. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.07.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Singh S, Khatoon S, Joshi Y, Prgyadeep S, Upreti DK, Rawat AKS. A Validated HPTLC Densitometric Method for Simultaneous Determination of Evernic and Usnic Acids in Four Usnea Species and Comparison of Their Antioxidant Potential. J Chromatogr Sci 2016; 54:1670-1677. [PMID: 27418361 DOI: 10.1093/chromsci/bmw118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 04/28/2016] [Indexed: 11/14/2022]
Abstract
A simple, sensitive and precise high-performance thin-layer chromatography method with densitometric detection was used for simultaneous determination of evernic (EV) and (+)-usnic acids (USN) in Usnea aciculifera (UA), U. ghattensis (UG), U. longissima (UL) and U. stigmatoides (US). This method was also validated according to the ICH guidelines. Separation and quantification was performed with the mobile phase toluene-1, 4-dioxane-formic acid (18:4.5:0.2, v/v/v) on silica gel 60F254 plates. The linearity for EV and USN was found in the 200-600 ng/band range. The limit of detection for EV and USN was 51.56 and 32.59 ng/band, while the limit of quantification was 156.23 and 98.76 ng/band, respectively. Intra- and interday precisions (n = 6) for EV and USN were 0.70-1.89 and 0.50-0.76 (%RSD), and 1.56-1.60 and 1.54-1.99 (%RSD), respectively. The mean percent recoveries were 99.66 and 99.87%, respectively, for EV and USN. However, USN was estimated in all four Usnea species but EV only in two species with varied quantity. Comparative antioxidant activity revealed that US is a better free radical scavenger in comparison with other three Usnea species. Furthermore, these results indicated that USN and EV are not solely responsible for antioxidant potential, but it may be due to synergistic effect.
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Affiliation(s)
- Shweta Singh
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India.,Department of Botany, S.S.J. Campus, Almora, Kumaun University, Nainital, Uttarakhand, India
| | - Sayyada Khatoon
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - Yogesh Joshi
- Department of Botany, S.S.J. Campus, Almora, Kumaun University, Nainital, Uttarakhand, India
| | - Siddhartha Prgyadeep
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - Dalip Kumar Upreti
- Lichenology Lab, Plant Diversity, Systematics and Herbarium Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - Ajay Kumar Singh Rawat
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
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Luzina OA, Salakhutdinov NF. Biological activity of usnic acid and its derivatives: Part 2. effects on higher organisms. Molecular and physicochemical aspects. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1068162016030109] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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14
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Luzina OA, Salakhutdinov NF. Biological activity of usnic acid and its derivatives: Part 1. Activity against unicellular organisms. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1068162016020084] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Prateeksha P, Paliya BS, Bajpai R, Jadaun V, Kumar J, Kumar S, Upreti DK, Singh BR, Nayaka S, Joshi Y, Singh BN. The genus Usnea: a potent phytomedicine with multifarious ethnobotany, phytochemistry and pharmacology. RSC Adv 2016. [DOI: 10.1039/c5ra24205c] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The genusUsneaAdans. (Parmeliaceae; lichenized Ascomycetes) is a typical group of mostly pale grayish-green fruticoselichens that grow as leafless mini-shrubs.
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Affiliation(s)
- Prateeksha Prateeksha
- Pharmacognosy & Ethnopharmacology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | - B. S. Paliya
- Pharmacognosy & Ethnopharmacology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | - R. Bajpai
- Lichenology Laboratory
- Plant Biodiversity and Conservation Biology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | - V. Jadaun
- Pharmacognosy & Ethnopharmacology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | - J. Kumar
- Pharmacognosy & Ethnopharmacology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | - S. Kumar
- Pharmacognosy & Ethnopharmacology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | - D. K. Upreti
- Lichenology Laboratory
- Plant Biodiversity and Conservation Biology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | - B. R. Singh
- Centre of Excellence in Materials Science (Nanomaterials)
- Z. H. College of Engineering & Technology
- Aligarh Muslim University
- Aligarh-202002
- India
| | - S. Nayaka
- Lichenology Laboratory
- Plant Biodiversity and Conservation Biology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
| | | | - Brahma N. Singh
- Pharmacognosy & Ethnopharmacology Division
- CSIR-National Botanical Research Institute
- Lucknow – 226001
- India
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Çay S, Köse M, Tümer F, Gölcü A, Tümer M. SOD activity and DNA binding properties of a new symmetric porphyrin Schiff base ligand and its metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:821-838. [PMID: 26172470 DOI: 10.1016/j.saa.2015.07.044] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 06/15/2015] [Accepted: 07/07/2015] [Indexed: 06/04/2023]
Abstract
4-Methoxy-2,6-bis(hydroxymethyl)phenol (1) was prepared from the reaction of 4-methoxyphenol and formaldehyde. The compound (1) was then oxidized to the 4-methoxy-2,6-diformylphenol (2) compound. Molecular structure of compound (2) was determined by X-ray diffraction method. A new symmetric porphyrin Schiff base ligand 4-methoxy-2,6-bis[5-(4-iminophenyl)-10,15,20-triphenylporphyrin]phenol (L) was prepared from the reaction of the 5-(4-aminophenyl)-10,15,20-triphenylporphyrin (TTP-NH2) and the compound (2) in the toluene solution. The metal complexes (Cu(II), Fe(III), Mn(III), Pt(II) and Zn(II)) of the ligand (L) were synthesized and characterized by the spectroscopic and analytical methods. The DNA (fish sperm FSdsDNA) binding studies of the ligand and its complexes were performed using UV-vis spectroscopy. Additionally, superoxide dismutase activities of the porphyrin Schiff base metal complexes were investigated. Additionally, electrochemical, photoluminescence and thermal properties of the compounds were investigated.
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Affiliation(s)
- Sevim Çay
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Muhammet Köse
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Ferhan Tümer
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Ayşegül Gölcü
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Mehmet Tümer
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey.
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17
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Singh BN, Prateeksha P, Pandey G, Jadaun V, Singh S, Bajpai R, Nayaka S, Naqvi AH, Singh Rawat AK, Upreti DK, Singh BR. Development and characterization of a novel Swarna-based herbo-metallic colloidal nano-formulation – inhibitor of Streptococcus mutans quorum sensing. RSC Adv 2015. [DOI: 10.1039/c4ra11939h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Herbo-metallic preparations such as bhasmas (ash) are used traditionally in Indian and Chinese medicinal systems.
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