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Zheleva-Dimitrova D, Voynikov Y, Gevrenova R, Balabanova V. A Comprehensive Phytochemical Analysis of Sideritis scardica Infusion Using Orbitrap UHPLC-HRMS. Molecules 2023; 29:204. [PMID: 38202787 PMCID: PMC10780595 DOI: 10.3390/molecules29010204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 12/22/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Sideritis scardica Griseb, also known as "mountain tea" and "Olympus tea" (Lamiaceae family) is an endemic plant from the mountainous regions of the Balkan Peninsula. In this study, we focused on an in-depth phytochemical analysis of S. scardica infusion using ultra-high-performance liquid chromatography hyphenated with high-resolution mass spectrometry (UHPLC-HRMS). Quantitative determination of the main secondary metabolites was carried out by UHPLC-HRMS analyses using the external standard method. The results revealed more than 100 metabolites, including five sugar acids and saccharides, 21 carboxylic, hydroxybenzoic, hydroxycinnamic acids, and derivatives, 15 acylquinic acids, 10 phenylpropanoid glycosides, four iridoid glycosides, 28 flavonoids, seven fatty acids, and four organosulfur compounds. Furthermore, a dereplication and fragmentation patterns of five caffeic acids oligomers and four acylhexaric acids was performed for the first time in S. scardica. Regarding the quantitative analysis, the phenylethanoid verbascoside (53) (151.54 ± 10.86 mg/g lyophilized infusion, li), the glycosides of isoscutellarein (78) (151.70 ± 14.78 mg/g li), methylisoscutelarein (82) (107.4 ± 9.07 mg/g li), and hypolaetin (79) (78.33 ± 3.29 mg/g li), as well as caffeic acid (20) (87.25 ± 6.54 mg/g li), were found to be the major compounds in S. scardica infusion. The performed state-of-the-art phytochemical analysis of S. scardica provides additional knowledge for the chemical constituents and usage of this valuable medicinal plant.
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Affiliation(s)
- Dimitrina Zheleva-Dimitrova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (R.G.); (V.B.)
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria;
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (R.G.); (V.B.)
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (R.G.); (V.B.)
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2
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Angelova VT, Georgiev B, Pencheva T, Pajeva I, Rangelov M, Todorova N, Zheleva-Dimitrova D, Kalcheva-Yovkova E, Valkova IV, Vassilev N, Mihaylova R, Stefanova D, Petrov B, Voynikov Y, Tzankova V. Design, Synthesis, In Silico Studies and In Vitro Evaluation of New Indole- and/or Donepezil-like Hybrids as Multitarget-Directed Agents for Alzheimer's Disease. Pharmaceuticals (Basel) 2023; 16:1194. [PMID: 37765003 PMCID: PMC10534827 DOI: 10.3390/ph16091194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/13/2023] [Accepted: 08/17/2023] [Indexed: 09/29/2023] Open
Abstract
Alzheimer's disease (AD) is considered a complex neurodegenerative condition which warrants the development of multitargeted drugs to tackle the key pathogenetic mechanisms of the disease. In this study, two novel series of melatonin- and donepezil-based hybrid molecules with hydrazone (3a-r) or sulfonyl hydrazone (5a-l) fragments were designed, synthesized, and evaluated as multifunctional ligands against AD-related neurodegenerative mechanisms. Two lead compounds (3c and 3d) exhibited a well-balanced multifunctional profile, demonstrating intriguing acetylcholinesterase (AChE) inhibition, promising antioxidant activity assessed by DPPH, ABTS, and FRAP methods, as well as the inhibition of lipid peroxidation in the linoleic acid system. Compound 3n, possessing two indole scaffolds, showed the highest activity against butyrylcholinesterase (BChE) and a high selectivity index (SI = 47.34), as well as a pronounced protective effect in H2O2-induced oxidative stress in SH-SY5Y cells. Moreover, compounds 3c, 3d, and 3n showed low neurotoxicity against malignant neuroblastoma cell lines of human (SH-SY5Y) and murine (Neuro-2a) origin, as well as normal murine fibroblast cells (CCL-1) that indicate the in vitro biocompatibility of the experimental compounds. Furthermore, compounds 3c, 3d, and 3n were capable of penetrating the blood-brain barrier (BBB) in the experimental PAMPA-BBB study. The molecular docking showed that compound 3c could act as a ligand to both MT1 and MT2 receptors, as well as to AchE and BchE enzymes. Taken together, those results outline compounds 3c, 3d, and 3n as promising prototypes in the search of innovative compounds for the treatment of AD-associated neurodegeneration with oxidative stress. This study demonstrates that hydrazone derivatives with melatonin and donepezil are appropriate for further development of new AChE/BChE inhibitory agents.
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Affiliation(s)
- Violina T. Angelova
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.V.V.); (Y.V.)
| | - Borislav Georgiev
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.G.); (N.T.)
| | - Tania Pencheva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (T.P.); (I.P.)
| | - Ilza Pajeva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (T.P.); (I.P.)
| | - Miroslav Rangelov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.R.); (N.V.)
| | - Nadezhda Todorova
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.G.); (N.T.)
| | | | - Elena Kalcheva-Yovkova
- Faculty of Computer Systems and Techologies, Technical University–Sofia, 1000 Sofia, Bulgaria;
| | - Iva V. Valkova
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.V.V.); (Y.V.)
| | - Nikolay Vassilev
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (M.R.); (N.V.)
| | - Rositsa Mihaylova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (R.M.); (D.S.); (B.P.); (V.T.)
| | - Denitsa Stefanova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (R.M.); (D.S.); (B.P.); (V.T.)
| | - Boris Petrov
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (R.M.); (D.S.); (B.P.); (V.T.)
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (I.V.V.); (Y.V.)
| | - Virginia Tzankova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (R.M.); (D.S.); (B.P.); (V.T.)
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Zheleva-Dimitrova D, Petrova A, Zengin G, Sinan KI, Balabanova V, Joubert O, Zidorn C, Voynikov Y, Simeonova R, Gevrenova R. Metabolite profiling and bioactivity of Cicerbita alpina (L.) Wallr. (Asteraceae, Cichorieae). Plants (Basel) 2023; 12:1009. [PMID: 36903870 PMCID: PMC10005263 DOI: 10.3390/plants12051009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Cicerbita alpina (L.) Wallr. is a perennial herbaceous plant in the tribe Cichorieae (Lactuceae), Asteraceae family, distributed in the mountainous regions in Europe. In this study, we focused on the metabolite profiling and the bioactivity of C. alpina leaves and flowering heads methanol-aqueous extracts. The antioxidant activity of extracts, as well as inhibitory potential towards selected enzymes, involving in several human diseases, including metabolic syndrome (α-glucosidase, α-amylase, and lipase), Alzheimer's disease, (cholinesterases: AChE, BchE), hyperpigmentation (tyrosinase), and cytotoxicity were assessed. The workflow comprised ultra-high-performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS). UHPLC-HRMS analysis revealed more than 100 secondary metabolites, including acylquinic, acyltartaric acids, flavonoids, bitter sesquiterpene lactones (STLs), such as lactucin, dihydrolactucin, their derivatives, and coumarins. Leaves showed a stronger antioxidant activity compared to flowering heads, as well as lipase (4.75 ± 0.21 mg OE/g), AchE (1.98 ± 0.02 mg GALAE/g), BchE (0.74 ± 0.06 mg GALAE/g), and tyrosinase (49.87 ± 3.19 mg KAE/g) inhibitory potential. Flowering heads showed the highest activity against α-glucosidase (1.05 ± 0.17 mmol ACAE/g) and α-amylase (0.47 ± 0.03). The obtained results highlighted C. alpina as a rich source of acylquinic, acyltartaric acids, flavonoids, and STLs with significant bioactivity, and therefore the taxon could be considered as a potential candidate for the development of health-promoting applications.
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Affiliation(s)
| | - Alexandra Petrova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Gokhan Zengin
- Department of Biology, Faculty of Science, Selcuk University, Campus, 42250 Konya, Turkey
| | - Kouadio Ibrahime Sinan
- Department of Biology, Faculty of Science, Selcuk University, Campus, 42250 Konya, Turkey
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Olivier Joubert
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France
| | - Christian Zidorn
- Pharmazeutisches Institut, Abteilung Pharmazeutische Biologie, Christian-Albrechts-Universität zu Kiel, 24118 Kiel, Germany
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Rumyana Simeonova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University-Sofia, 1000 Sofia, Bulgaria
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Voynikov Y, Balabanova V, Gevrenova R, Zheleva-Dimitrova D. Chemophenetic Approach to Selected Senecioneae Species, Combining Morphometric and UHPLC-HRMS Analyses. Plants (Basel) 2023; 12:390. [PMID: 36679103 PMCID: PMC9866700 DOI: 10.3390/plants12020390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Herein, a chemophenetic significance, based on the phenolic metabolite profiling of three Senecio (S. hercynicus, S. ovatus, and S. rupestris) and two Jacobaea species (J. pancicii and J. maritima), coupled to morphometric data, is presented. A set of twelve morphometric characters were recorded from each plant species and used as predictor variables in a linear discriminant analysis (LDA) model. From a total 75 observations (15 from each of the five species), the model correctly assumed their species' membership, except for 2 observations. Among the studied species, S. hercynicus and S. ovatus presented the greatest morphological similarity. A phytochemical profiling of phenolic specialized metabolites by UHPLC-Orbitrap-MS revealed 46 hydroxybenzoic, hydroxycinnamic, and acylquinic acids and their derivatives, 1 coumarin and 21 flavonoids. Hierarchical and PCA clustering applied to the phytochemical data corroborated the similarity of S. hercynicus and S. ovatus, observed in the morphometric analysis. This study contributes to the phylogenetic relationships between the tribe Senecioneae taxa and highlights the chemophenetic similarity/dissimilarity of the studied species belonging to Senecio and Jacobaea genera.
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Affiliation(s)
- Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University, 2 Dunav Str., 1000 Sofia, Bulgaria
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Balabanova V, Zheleva-Dimitrova D, Voynikov Y, Gevrenova R. Insight into C, O – glycosyl flavones of two Bulgarian Gypsophila species. Maced Pharm Bull 2022. [DOI: 10.33320/maced.pharm.bull.2022.68.04.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
| | - Dimitrina Zheleva-Dimitrova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
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Gevrenova R, Voynikov Y, Balabanova V, Zheleva-Dimitrova D. Rapid annotation of acylquinic acids in Tanacetum balsamita L. with a practical strategy of diagnostic ions based on Orbitrap mass spectrometry. Maced Pharm Bull 2022. [DOI: 10.33320/maced.pharm.bull.2022.68.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Reneta Gevrenova
- Department of Pharmacognsy, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav str., 1000 Sofia, Bulgaria
| | - Yulian Voynikov
- Department of Pharmacognsy, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav str., 1000 Sofia, Bulgaria
| | - Vessela Balabanova
- Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav str., 1000 Sofia, Bulgaria
| | - Dimitrina Zheleva-Dimitrova
- Department of Pharmacognsy, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav str., 1000 Sofia, Bulgaria
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Zheleva-Dimitrova D, Voynikov Y, Balabanova V, Gevrenova R. The reliability and limitation of UHPLC-HRMS in the sesquiterpene lactones dereplication: a case study of two Asteraceae species. Maced Pharm Bull 2022. [DOI: 10.33320/maced.pharm.bull.2022.68.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Dimitrina Zheleva-Dimitrova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Dunav str. 2, 1000 Sofia, Bulgaria
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8
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Gevrenova R, Zengin G, Sinan KI, Zheleva-Dimitrova D, Balabanova V, Kolmayer M, Voynikov Y, Joubert O. An In-Depth Study of Metabolite Profile and Biological Potential of Tanacetum balsamita L. (Costmary). Plants (Basel) 2022; 12:plants12010022. [PMID: 36616151 PMCID: PMC9824382 DOI: 10.3390/plants12010022] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/09/2022] [Accepted: 12/16/2022] [Indexed: 05/25/2023]
Abstract
Asteraceae species Tanacetum balsamita L. (costmary) is renowned for its traditional usage as an aromatic, carminative and tonic plant. This work aimed at in-depth study of the phytochemical and in vitro biological profilings of methanol−aqueous extracts from the costmary leaves, flower heads and roots. An UHPLC-HRMS analysis revealed more than 100 secondary metabolites including 24 acylquinic acids, 43 flavonoid glycosides, aglycones and methoxylated derivatives together with 15 phenolic acids glycosides. For the first time, 91 compounds are reported in the costmary. The flower heads extract possessing the highest content of total phenolics and flavonoids, actively scavenged DPPH (84.54 ± 3.35 mgTE/g) and ABTS radicals (96.35 ± 2.22 mgTE/g), and showed the highest reducing potential (151.20 and 93.22 mg TE/g for CUPRAC and FRAP, respectively). The leaves extract exhibited the highest inhibition towards acetyl- and butyrylcholinesterase (2.11 and 2.43 mg GALAE/g, respectively) and tyrosinase (54.65 mg KAE/g). The root extract inhibited α-glucosidase (0.71 ± 0.07 mmol ACAE/g), α-amylase (0.43 ± 0.02 mmol ACAE/g) and lipase (8.15 ± 1.00 mg OE/g). At a concentration >2 µg/mL, a significant dose dependent reduction of cell viability towards THP-1 monocyte leukemic cells was observed. Costmary could be recommended for raw material production with antioxidant and enzyme inhibitory properties.
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Affiliation(s)
- Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Gokhan Zengin
- Department of Biology, Faculty of Science, Selcuk University, Konya 42250, Turkey
| | | | | | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Maxime Kolmayer
- Institut Jean Lamour, Unité Mixte de Recherche Centre National de la Recherche Scientifique 7198, Université de Lorraine, F-54000 Nancy, France
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, 1431 Sofia, Bulgaria
| | - Olivier Joubert
- Institut Jean Lamour, Unité Mixte de Recherche Centre National de la Recherche Scientifique 7198, Université de Lorraine, F-54000 Nancy, France
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Gevrenova R, Zengin G, Balabanova V, Voynikov Y, Zheleva-Dimitrova D. C, O – flavonoid glycosides and oleanane-type bidesmosides from Gypsophila perfoliata L. “tekirae” (Caryophyllaceae): Chemophenetic implications. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2021.104353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zheleva-Dimitrova D, Zengin G, Ak G, Sinan KI, Mahomoodally MF, Gevrenova R, Balabanova V, Stefanova A, Nedialkov P, Voynikov Y. Innovative Biochemometric Approach to the Metabolite and Biological Profiling of the Balkan Thistle ( Cirsium appendiculatum Griseb.), Asteraceae. Plants (Basel) 2021; 10:2046. [PMID: 34685855 PMCID: PMC8539897 DOI: 10.3390/plants10102046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/31/2022]
Abstract
The widespread genus Cirsium Mill. (Asteraceae) is renowned in traditional medicine. In the present study, an innovative biochemometric-assisted metabolite profiling of the flower heads, aerial parts and roots of Cirsium appendiculatum Griseb. (Balkan thistle) in relation to their antioxidant and enzyme inhibitory potential was developed. The workflow combines ultra-high-performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) with partial least-square analysis to discriminate the herbal extracts and identify the most prominent biological activities. The annotation and dereplication of 61 secondary metabolites were evidenced, including 15 carboxylic (including hydroxybenzoic and hydroxycinnamic) acids and their glycosides, 11 acylquinic acids, 26 flavonoids and 9 fatty acids. All compounds were reported for the first time in the studied species. The root extract revealed the highest cupric and ferric reducing power (618.36 ± 5.17 mg TE/g and 269.89 ± 8.50 mg TE/g, respectively) and antioxidant potential in phosphomolybdenum (3.36 ± 0.15 mmol TE/g) as well as the most prominent enzyme inhibitory potential on α-glucosidase (0.72 ± 0.07 mmol ACAE/g), acetylcholinesterase (4.93 ± 0.25 mg GALAE/g) and butyrylcholinesterase (3.80 ± 0.26 mg GALAE/g). Nevertheless, the flower heads were differentiated by their higher metal chelating activity (32.53 ± 3.51 mg EDTAE/g) and total flavonoid content (46.59 ± 0.89 mgRE/g). The partial least-square discriminant and heat-map analysis highlighted the root extract as the most active and a promising source of bioactive compounds for the therapeutic industry.
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Affiliation(s)
- Dimitrina Zheleva-Dimitrova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University—Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (R.G.); (V.B.); (A.S.); (P.N.)
| | - Gokhan Zengin
- Biochemistry and Physiology Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya 42130, Turkey; (G.Z.); (G.A.); (K.I.S.)
| | - Gunes Ak
- Biochemistry and Physiology Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya 42130, Turkey; (G.Z.); (G.A.); (K.I.S.)
| | - Kouadio Ibrahime Sinan
- Biochemistry and Physiology Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya 42130, Turkey; (G.Z.); (G.A.); (K.I.S.)
| | - Mohamad Fawzi Mahomoodally
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Réduit 80837, Mauritius;
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University—Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (R.G.); (V.B.); (A.S.); (P.N.)
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University—Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (R.G.); (V.B.); (A.S.); (P.N.)
| | - Alexandra Stefanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University—Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (R.G.); (V.B.); (A.S.); (P.N.)
| | - Paraskev Nedialkov
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University—Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (R.G.); (V.B.); (A.S.); (P.N.)
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University—Sofia, Bulgaria 2 Dunav Str., 1000 Sofia, Bulgaria;
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Voynikov Y, Nedialkov P, Gevrenova R, Zheleva-Dimitrova D, Balabanova V, Dimitrov I. UHPLC-Orbitrap-MS Tentative Identification of 51 Oleraceins (Cyclo-Dopa Amides) in Portulaca oleracea L. Cluster Analysis and MS 2 Filtering by Mass Difference. Plants (Basel) 2021; 10:plants10091921. [PMID: 34579453 PMCID: PMC8473048 DOI: 10.3390/plants10091921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/11/2021] [Accepted: 09/13/2021] [Indexed: 01/30/2023]
Abstract
Oleraceins are a class of indoline amide glycosides found in Portulaca oleracea L. (Portulacaceae), or purslane. These compounds are characterized by 5,6-dihydroxyindoline-2-carboxylic acid N-acylated with cinnamic acid derivatives, and many are glucosylated. Herein, hydromethanolic extracts of the aerial parts of purslane were subjected to UHPLC-Orbitrap-MS analysis, in negative ionization mode. Diagnostic ion filtering (DIF), followed by diagnostic difference filtering (DDF), were utilized to automatically filter out MS data and select plausible oleracein structures. After an in-depth MS2 analysis, a total of 51 oleracein compounds were tentatively identified. Of them, 26 had structures, matching one of the already known oleracein, and the other 25 were new, undescribed in the literature compounds, belonging to the oleracein class. Moreover, based on selected diagnostic fragment ions, clustering algorithms and visualizations were utilized. As we demonstrate, clustering methods provide valuable insights into the mass fragmentation elucidation of natural compounds in complex mixtures.
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Affiliation(s)
- Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria;
- Correspondence:
| | - Paraskev Nedialkov
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (P.N.); (R.G.); (D.Z.-D.); (V.B.)
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (P.N.); (R.G.); (D.Z.-D.); (V.B.)
| | - Dimitrina Zheleva-Dimitrova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (P.N.); (R.G.); (D.Z.-D.); (V.B.)
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria; (P.N.); (R.G.); (D.Z.-D.); (V.B.)
| | - Ivan Dimitrov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria;
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Tsekov I, Dimitrova M, Voynikov Y. Role of the EMA specific marketing authorization procedures for early access on the time to patient access in Bulgaria. PHAR 2021. [DOI: 10.3897/pharmacia.68.e64931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Despite the early access procedures for marketing authorization (MA) valid throughout the European Union still in the most of the Member states patient access to innovative medicines depends on cost-effectiveness, budget impact assessment and negotiations for price discount with the public payers.
Retrospective analysis on the availability and time to market access of medicines authorized under the European medicines agency’s specific procedures for early access shows that despite the shortening of the time to market access after 2013, for most medicines still exceeds 365 days. This is due to the fact that requirements for pricing and reimbursement across EU is fixed to some degree and medicines with MA for early access are subject to the same legal requirements as the medicines with standard centralized marketing authorization. Some specific national legal requirements for pricing and reimbursement decisions, population of interest and manufactures intentions to enter certain markets should also be considered.
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Marinov L, Georgieva A, Voynikov Y, Toshkova R, Nikolova I, Malchev M. Cytotoxic and antiproliferative effects of the nonsteroidal anti-inflammatory drug diclofenac in human tumour cell lines. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1953401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Lyubomir Marinov
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Ani Georgieva
- Department Pathology, Institute of Experimental Morphology, Pathology, and Anthropology with Museum, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Reneta Toshkova
- Department Pathology, Institute of Experimental Morphology, Pathology, and Anthropology with Museum, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Irina Nikolova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Martin Malchev
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
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Simeonova R, Vitcheva V, Zheleva-Dimitrova D, Balabanova V, Savov I, Yagi S, Dimitrova B, Voynikov Y, Gevrenova R. Trans-3,5-dicaffeoylquinic acid from Geigeria alata Benth. & Hook.f. ex Oliv. & Hiern with beneficial effects on experimental diabetes in animal model of essential hypertension. Food Chem Toxicol 2019; 132:110678. [PMID: 31323233 DOI: 10.1016/j.fct.2019.110678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/11/2019] [Accepted: 07/13/2019] [Indexed: 11/15/2022]
Abstract
Geigeria alata Benth. & Hook.f. ex Oliv. & Hiern (Asteraceae) is used in Sudanese folk medicine for treatment of diabetes. The study aimed to estimate the acute oral toxicity of trans-3,5-dicaffeoylquinic acid (3,5-diCQA) from G. alata roots and to assess its antihypeglycemic, antioxidant and antihypertensive effects on chemically-induced diabetic spontaneously hypertensive rats (SHRs). The structure of 3,5-diCQA was established by NMR and HRMS spectra. Type 2 diabetes was induced by intraperitoneal injection of streptozotocin. 3,5-diCQA was slightly toxic with LD50 = 2154 mg/kg. At 5 mg/kg 3,5-diCQA reduced significantly (p < 0.05) the blood glucose levels by 42%, decreased the blood pressure by 22% and ameliorated the oxidative stress biomarkers reduced glutathione, malondialdehyde, and serum biochemical parameters. The beneficial effect on antioxidant enzymes was evidenced by the elevated glutathione peroxidase, glutathione reductase, and glutathione S-transferase activitiy in the livers of diabetic animals. 3,5-diCQA prevents the histopathological changes related to diabetes and hypertension. 3,5-diCQA was more potent α-glucosidase inhibitor (IC50 27.24 μg/mL) than acarbose (IC50 99.77 μg/mL). The antihyperglycemic action of the compound was attributed to the α-glucosidase inhibition. The beneficial effects of 3,5-diCQA on streptozotocin-induced diabetic hypertensive rats support the traditional use of G.alata for the management of diabetes.
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Affiliation(s)
- Rumyana Simeonova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Vessela Vitcheva
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Dimitrina Zheleva-Dimitrova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Ionko Savov
- Institute of Emergency Medicine "N. I. Pirogov", Bul. Totleben 21, Sofia, 1000, Bulgaria.
| | - Sakina Yagi
- Department of Botany, Faculty of Science, University of Khartoum, Sudan.
| | - Bozhana Dimitrova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria; Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., 1000, Sofia, Bulgaria.
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Nikolova I, Marinov L, Georgieva A, Toshkova R, Malchev M, Voynikov Y, Kostadinova I. Metamizole (dipyrone) – cytotoxic and antiproliferative effects on HeLa, HT-29 and MCF-7 cancer cell lines. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2018.1511382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Irina Nikolova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Lyubomir Marinov
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Ani Georgieva
- Department of Pathology, Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Reneta Toshkova
- Department of Pathology, Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Martin Malchev
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
| | - Ivanka Kostadinova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria
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Gevrenova R, Bardarov K, Bouguet-Bonnet S, Voynikov Y, Balabanova V, Zheleva-Dimitrova D, Henry M. A new liquid chromatography-high resolution Orbitrap mass spectrometry-based strategy to characterize Glucuronide Oleanane-type Triterpenoid Carboxylic Acid 3, 28-O-Bidesmosides (GOTCAB) saponins.A case study of Gypsophila glomerata Pall ex M. B. (Caryophyllaceae). J Pharm Biomed Anal 2018; 159:567-581. [DOI: 10.1016/j.jpba.2018.07.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 12/18/2022]
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Zheleva-Dimitrova D, Zengin G, Balabanova V, Voynikov Y, Lozanov V, Lazarova I, Gevrenova R. Chemical characterization with in vitro biological activities of Gypsophila species. J Pharm Biomed Anal 2018; 155:56-69. [PMID: 29625258 DOI: 10.1016/j.jpba.2018.03.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 03/16/2018] [Accepted: 03/17/2018] [Indexed: 01/11/2023]
Abstract
Methanol-aqueous extracts from the aerial parts of Gypsophila glomerata (GGE), G. trichotoma (GTE) and G. perfoliata (GPE) were investigated for antioxidant potential using different in vitro models, as well as for phenolic and flavonoid contents. The possible anti-cholinesterase, anti-tyrosinase, anti-amylase and anti-glucosidase activities were also tested. The flavonoid variability was analyzed using ultra high-performance liquid chromatography (UHPLC) coupled with hybrid quadrupole-Orbitrap high resolution mass spectrometry (HRMS). Eleven C-glycosyl flavones and 4 O-glycosyl flavonoids, including 2"-O-pentosyl-6-C-hexosyl-apigenin/methylluteolin, as well as their mono(di)-acetyl derivatives were found in GGE. Both GGE and GTE shared 2"-pentosyl-6-C-hexosyl-luteolin together with the common saponarin, homoorientin, orientin, isovitexin and vitexin, while di C-glycosyl flavones were evidenced only in GPE. The highest radical scavenging in both ABTS and DPPH assays was noted in GPE, as well as ferric and cupric reducing abilities. However, GTE had the strongest metal chelating activity (17.44 ± 0.51 mg EDTAE/g extract). GPE and GGE were more potent as acetylcholinesterases inhibitors witnessed by 2.09 ± 0.02 mg GALAE/g extract and 1.59 ± 0.09 mgGALAE/g extract, respectively. All flavonoids were found in G. glomerata for the first time. Therefore, further isolation and structural elucidation of newly described acetylated flavonoids are needed in order to determine their relevance in the beneficial properties of the plant.
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Affiliation(s)
| | - Gokhan Zengin
- Department of Biology, Faculty of Science, Selcuk University, Turkey
| | - Vessela Balabanova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Bulgaria
| | - Yulian Voynikov
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, Bulgaria
| | - Valentin Lozanov
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine, Medical University of Sofia, Bulgaria
| | - Irina Lazarova
- Department of Chemistry, Faculty of Pharmacy, Medical University of Sofia, Bulgaria
| | - Reneta Gevrenova
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Bulgaria
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Angelova VT, Valcheva V, Pencheva T, Voynikov Y, Vassilev N, Mihaylova R, Momekov G, Shivachev B. Synthesis, antimycobacterial activity and docking study of 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives and related hydrazide-hydrazones. Bioorg Med Chem Lett 2017; 27:2996-3002. [PMID: 28512022 DOI: 10.1016/j.bmcl.2017.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/03/2017] [Accepted: 05/04/2017] [Indexed: 12/30/2022]
Abstract
A new convenient method for preparation of 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives 5b-g and coumarin containing hydrazide-hydrazone analogues 4a-e was presented. The antimycobacterial activity against reference strain Mycobacterium tuberculosis H37Rv and cytotoxicity against the human embryonic kidney cell line HEK-293 were tested in vitro. All compounds demonstrated significant minimum inhibitory concentrations (MIC) ranging 0.28-1.69μM, which were comparable to those of isoniazid. The cytotoxicity (IC50>200µM) to the "normal cell" model HEK-293T exhibited by 2-aroyl-[1]benzopyrano[4,3-c]pyrazol-4(1H)-one derivatives 5b-e, was noticeably milder compared to that of their hydrazone analogues 4a-e (IC50 33-403µM). Molecular docking studies on compounds 4a-e and 5b-g were also carried out to investigate their binding to the 2-trans-enoyl-ACP reductase (InhA) enzyme involved in M. tuberculosis cell wall biogenesis. The binding model suggested one or more hydrogen bonding and/or arene-H or arene-arene interactions between hydrazones or pyrazole-fused coumarin derivatives and InhA enzyme for all synthesized compounds.
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Affiliation(s)
- Violina T Angelova
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria.
| | - Violeta Valcheva
- "Stefan Angelov" Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
| | - Tania Pencheva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 105 Acad. G. Bonchev Str, 1113 Sofia, Bulgaria
| | - Yulian Voynikov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Nikolay Vassilev
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Rositsa Mihaylova
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Georgi Momekov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav Str., 1000 Sofia, Bulgaria
| | - Boris Shivachev
- Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, 107 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
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Andreeva-Gateva PA, Konsulova P, Orbetzova M, Georgieva-Nikolova R, Tafradjiiska-Hadjiolova R, Angelova V, Voynikov Y, Nikolova I, Simova I. Differentiation of obese patients at moderate or higher Findrisc score based on their atherogenic index. Postgrad Med 2016; 128:790-796. [PMID: 27700189 DOI: 10.1080/00325481.2016.1240590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The purpose of this study was to reveal different subgroups of patients with at least moderate risk of developing diabetes in the next 10 years, based on clustering of cardiovascular risk factors. METHODS We performed a one-center cross-sectional study of adult patients (n = 109, median age 45 years) with Findrisc score of above 11 out of 26 maximum. We included in the cluster analysis anthropometrics, lipid and carbohydrate parameters obtained in oral glucose tolerance test (OGTT), insulin, C-peptide, creatinine, C-reactive protein, liver enzymes, beta-cell function, insulin sensitivity and insulin resistance (HOMA calculations). We also evaluated the atherogenic index of plasma (AIP). RESULTS We identified three metabolic phenotypes of patients with at least moderate Findrisc score-one 'male' (cluster AM, n = 24), and two 'female' phenotypes (cluster AW, n = 9 and cluster BW, n = 76). Men were almost homogenous for their metabolic phenotype, with lower fat percentage than women (p < .05). Most of the women (cluster BW, n = 76) presented with better metabolic pattern i.e. lower insulin resistance, lower C-reactive protein, lower degree of obesity and visceral fat rating (p < .05), despite the higher fat percentage (p < .05). Some of the women, however, (cluster AW, n = 9) presented with parameters very similar to that of men (cluster AM) and significantly higher than in cluster BW. Despite the lack of significant differences in lipid parameters among clusters, AIP was significantly lower in cluster BW (p < .05). CONCLUSION Most of the women presented with clearly less unfavorable atherogenic risk than men. Two different phenotypes of obese women with at least moderate Findrisc score were revealed, and the level of inflammation seems to be the main discriminant factor. Larger prospective studies are required to elucidate whether those are really two different pathogenically phenotypes or if they belong to the same phenotype's continuum.
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Affiliation(s)
- Pavlina A Andreeva-Gateva
- a Department of Pharmacology and Toxicology, Medical Faculty , Medical University of Sofia , Sofia , Bulgaria.,b Department of Internal Medicine, Pharmacology and Clinical Pharmacology, Pediatrics, Epidemiology, Infectious Diseases and Dermatology, Medical Faculty , University of Sofia 'St Kliment Ohridski,' , Sofia , Bulgaria
| | - Petya Konsulova
- c Department of Endocrinology, Medical Faculty , Medical University of Plovdiv , Plovdiv , Bulgaria
| | - Maria Orbetzova
- c Department of Endocrinology, Medical Faculty , Medical University of Plovdiv , Plovdiv , Bulgaria
| | - Radka Georgieva-Nikolova
- d Department of Medical Chemistry and Biochemistry, Medical Faculty , Medical University of Sofia , Sofia , Bulgaria
| | | | - Violina Angelova
- f Department of Chemistry, Faculty of Pharmacy , Medical University of Sofia , Sofia , Bulgaria
| | - Yulian Voynikov
- f Department of Chemistry, Faculty of Pharmacy , Medical University of Sofia , Sofia , Bulgaria
| | - Irina Nikolova
- g Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy , Medical University of Sofia , Sofia , Bulgaria
| | - Iscra Simova
- h Pre-admission Ward , Specialized Hospital of Infections and Parasitic Diseases 'Prof. Ivan Kirov ,' Sofia , Bulgaria
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Stavrakov G, Valcheva V, Voynikov Y, Philipova I, Atanasova M, Konstantinov S, Peikov P, Doytchinova I. Design, Synthesis, and Antimycobacterial Activity of Novel Theophylline-7-Acetic Acid Derivatives With Amino Acid Moieties. Chem Biol Drug Des 2015; 87:335-41. [PMID: 26502828 DOI: 10.1111/cbdd.12676] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 09/13/2015] [Accepted: 10/12/2015] [Indexed: 01/18/2023]
Abstract
The theophylline-7-acetic acid (7-TAA) scaffold is a promising novel lead compound for antimycobacterial activity. Here, we derive a model for antitubercular activity prediction based on 14 7-TAA derivatives with amino acid moieties and their methyl esters. The model is applied to a combinatorial library, consisting of 40 amino acid and methyl ester derivatives of 7-TAA. The best three predicted compounds are synthesized and tested against Mycobacterium tuberculosis H37Rv. All of them are stable, non-toxic against human cells and show antimycobacterial activity in the nanomolar range being 60 times more active than ethambutol.
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Affiliation(s)
- Georgi Stavrakov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., Sofia, 1000, Bulgaria
| | - Violeta Valcheva
- Institute of Microbiology, Bulgarian Academy of Sciences, 26 Akad. Bonchev St., Sofia, 1113, Bulgaria
| | - Yulian Voynikov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., Sofia, 1000, Bulgaria
| | - Irena Philipova
- Institute of Organic Chemistry, Bulgarian Academy of Sciences, 9 Acad. Bonchev St., Sofia, 1113, Bulgaria
| | - Mariyana Atanasova
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., Sofia, 1000, Bulgaria
| | - Spiro Konstantinov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., Sofia, 1000, Bulgaria
| | - Plamen Peikov
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., Sofia, 1000, Bulgaria
| | - Irini Doytchinova
- Faculty of Pharmacy, Medical University of Sofia, 2 Dunav St., Sofia, 1000, Bulgaria
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21
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Voynikov Y, Valcheva V, Momekov G, Peikov P, Stavrakov G. Theophylline-7-acetic acid derivatives with amino acids as anti-tuberculosis agents. Bioorg Med Chem Lett 2014; 24:3043-5. [DOI: 10.1016/j.bmcl.2014.05.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/07/2014] [Accepted: 05/11/2014] [Indexed: 11/24/2022]
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