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Katasonov AB. [Dihydroquercetin as a systemic neuroprotector for the prevention and treatment of β-amyloid-associated brain diseases]. Zh Nevrol Psikhiatr Im S S Korsakova 2023; 123:136-142. [PMID: 37490679 DOI: 10.17116/jnevro2023123071136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Dihydroquercetin (DHQ) is a plant-derived polyphenol belonging to the group of flavonoids. In models associated with abnormal accumulation of β-amyloid in the brain (Alzheimer's disease and cerebral amyloid angiopathy), DHQ demonstrates the ability to disaggregate toxic forms of β-amyloid and prevent their formation. It is believed that this phenomenon underlies the protective effect of DHQ on brain neurons. However, pharmacokinetic data doubt the central mechanism of action of DHQ because this compound does not penetrate well into the brain. A hypothesis is put forward about the systemic nature of the neuroprotective action of DHQ, since this compound has multiple biological activities at the level of the whole organism. To characterize DHQ (and similar compounds), it is proposed to introduce the term «systemic neuroprotector».
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Yang R, Yang X, Zhang F. New Perspectives of Taxifolin in Neurodegenerative Diseases. Curr Neuropharmacol 2023; 21:2097-2109. [PMID: 36740800 PMCID: PMC10556370 DOI: 10.2174/1570159x21666230203101107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 02/07/2023] Open
Abstract
Neurodegenerative diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD), cerebral amyloid angiopathy (CAA), and Huntington's disease (HD) are characterized by cognitive and motor dysfunctions and neurodegeneration. These diseases have become more severe over time and cannot be cured currently. Until now, most treatments for these diseases are only used to relieve the symptoms. Taxifolin (TAX), 3,5,7,3,4-pentahydroxy flavanone, also named dihydroquercetin, is a compound derived primarily from Douglas fir and Larix gemelini. TAX has been confirmed to exhibit various pharmacological activities, including anti-inflammation, anti-cancer, anti-virus, and regulation of oxidative stress effects. In the central nervous system, TAX has been demonstrated to inhibit Aβ fibril formation, protect neurons and improve cerebral blood flow, cognitive ability, and dyskinesia. At present, TAX is only applied as a health additive in clinical practice. This review aimed to summarize the application of TAX in neurodegenerative diseases and the underlying neuroprotective mechanisms, such as suppressing inflammation, attenuating oxidative stress, preventing Aβ protein formation, maintaining dopamine levels, and thus reducing neuronal loss.
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Affiliation(s)
- Rong Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Guizhou Province and Laboratory Animal Center, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xinxing Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Guizhou Province and Laboratory Animal Center, Zunyi Medical University, Zunyi, Guizhou, China
| | - Feng Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Guizhou Province and Laboratory Animal Center, Zunyi Medical University, Zunyi, Guizhou, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, Guizhou, China
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Durmaz L, Kiziltas H, Guven L, Karagecili H, Alwasel S, Gulcin İ. Antioxidant, Antidiabetic, Anticholinergic, and Antiglaucoma Effects of Magnofluorine. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185902. [PMID: 36144638 PMCID: PMC9502953 DOI: 10.3390/molecules27185902] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/31/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022]
Abstract
Magnofluorine, a secondary metabolite commonly found in various plants, has pharmacological potential; however, its antioxidant and enzyme inhibition effects have not been investigated. We investigated the antioxidant potential of Magnofluorine using bioanalytical assays with 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+), N,N-dimethyl-p-phenylenediamine dihydrochloride (DMPD•+), and 1,1-diphenyl-2-picrylhydrazyl (DPPH•) scavenging abilities and K3[Fe(CN)6] and Cu2+ reduction abilities. Further, we compared the effects of Magnofluorine and butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), α-Tocopherol, and Trolox as positive antioxidant controls. According to the analysis results, Magnofluorine removed 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals with an IC50 value of 10.58 μg/mL. The IC50 values of BHA, BHT, Trolox, and α-Tocopherol were 10.10 μg/mL, 25.95 μg/mL, 7.059 μg/mL, and 11.31 μg/mL, respectively. Our results indicated that the DPPH· scavenging effect of Magnofluorine was similar to that of BHA, close to that of Trolox, and better than that of BHT and α-tocopherol. The inhibition effect of Magnofluorine was examined against enzymes, such as acetylcholinesterase (AChE), α-glycosidase, butyrylcholinesterase (BChE), and human carbonic anhydrase II (hCA II), which are linked to global disorders, such as diabetes, Alzheimer’s disease (AD), and glaucoma. Magnofluorine inhibited these metabolic enzymes with Ki values of 10.251.94, 5.991.79, 25.411.10, and 30.563.36 nM, respectively. Thus, Magnofluorine, which has been proven to be an antioxidant, antidiabetic, and anticholinergic in our study, can treat glaucoma. In addition, molecular docking was performed to understand the interactions between Magnofluorine and target enzymes BChE (D: 6T9P), hCA II (A:3HS4), AChE (B:4EY7), and α-glycosidase (C:5NN8). The results suggest that Magnofluorine may be an important compound in the transition from natural sources to industrial applications, especially new drugs.
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Affiliation(s)
- Lokman Durmaz
- Department of Medical Services and Technology, Cayirli Vocational School, Erzincan Binali Yildirim University, Erzincan 24500, Turkey
| | - Hatice Kiziltas
- Department of Pharmacy Services, Vocational School of Health Services, Van Yuzuncu Yil University, Van 65080, Turkey
| | - Leyla Guven
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Ataturk University, Erzurum 25240, Turkey
| | - Hasan Karagecili
- Department of Nursing, Faculty of Health Science, Siirt University, Siirt 56100, Turkey
| | - Saleh Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh 11362, Saudi Arabia
| | - İlhami Gulcin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum 25240, Turkey
- Correspondence: ; Tel.: +90-44-2231-4375
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Durmaz L, Erturk A, Akyüz M, Polat Kose L, Uc EM, Bingol Z, Saglamtas R, Alwasel S, Gulcin İ. Screening of Carbonic Anhydrase, Acetylcholinesterase, Butyrylcholinesterase, and α-Glycosidase Enzyme Inhibition Effects and Antioxidant Activity of Coumestrol. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103091. [PMID: 35630566 PMCID: PMC9143817 DOI: 10.3390/molecules27103091] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022]
Abstract
Coumestrol (3,9-dihydroxy-6-benzofuran [3,2-c] chromenone) as a phytoestrogen and polyphenolic compound is a member of the Coumestans family and is quite common in plants. In this study, antiglaucoma, antidiabetic, anticholinergic, and antioxidant effects of Coumestrol were evaluated and compared with standards. To determine the antioxidant activity of coumestrol, several methods—namely N,N-dimethyl-p-phenylenediamine dihydrochloride radical (DMPD•+)-scavenging activity, 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulphonate) radical (ABTS•+)-scavenging activity, 1,1-diphenyl-2-picrylhydrazyl radical (DPPH•)-scavenging activity, potassium ferric cyanide reduction ability, and cupric ion (Cu2+)-reducing activity—were performed. Butylated hydroxyanisole (BHA), Trolox, α-Tocopherol, and butylated hydroxytoluene (BHT) were used as the reference antioxidants for comparison. Coumestrol scavenged the DPPH radical with an IC50 value of 25.95 μg/mL (r2: 0.9005) while BHA, BHT, Trolox, and α-Tocopherol demonstrated IC50 values of 10.10, 25.95, 7.059, and 11.31 μg/mL, respectively. When these results evaluated, Coumestrol had similar DPPH•-scavenging effect to BHT and lower better than Trolox, BHA and α-tocopherol. In addition, the inhibition effects of Coumestrol were tested against the metabolic enzymes acetylcholinesterase (AChE), butyrylcholinesterase (BChE), carbonic anhydrase II (CA II), and α-glycosidase, which are associated with some global diseases such as Alzheimer’s disease (AD), glaucoma, and diabetes. Coumestrol exhibited Ki values of 10.25 ± 1.94, 5.99 ± 1.79, 25.41 ± 1.10, and 30.56 ± 3.36 nM towards these enzymes, respectively.
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Affiliation(s)
- Lokman Durmaz
- Department of Medical Services and Technology, Cayirli Vocational School, Erzincan Binali Yildirim University, Erzincan 24500, Turkey;
| | - Adem Erturk
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum 25240, Turkey; (A.E.); (E.M.U.); (Z.B.)
| | - Mehmet Akyüz
- Department of Chemistry, Faculty of Science and Arts, Kilis 7 Aralık University, Kilis 79000, Turkey;
| | - Leyla Polat Kose
- Department of Pharmacy Services, Vocational School, Beykent University, Istanbul 34500, Turkey;
| | - Eda Mehtap Uc
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum 25240, Turkey; (A.E.); (E.M.U.); (Z.B.)
| | - Zeynebe Bingol
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum 25240, Turkey; (A.E.); (E.M.U.); (Z.B.)
- Vocational School of Health Services, Tokat Gaziosmanpasa University, Tokat 60250, Turkey
| | - Ruya Saglamtas
- Department of Medical Services and Technology, Vocational School of Health Services, Agri Ibrahim Cecen University, Agri 04100, Turkey;
| | - Saleh Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh 11362, Saudi Arabia;
| | - İlhami Gulcin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum 25240, Turkey; (A.E.); (E.M.U.); (Z.B.)
- Correspondence: ; Tel.: +904422314375
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Rechek H, Haouat A, Hamaidia K, Allal H, Boudiar T, Pinto DCGA, Cardoso SM, Bensouici C, Soltani N, Silva AMS. Chemical Composition and Antioxidant, Anti-Inflammatory, and Enzyme Inhibitory Activities of an Endemic Species from Southern Algeria: Warionia saharae. Molecules 2021; 26:molecules26175257. [PMID: 34500690 PMCID: PMC8434534 DOI: 10.3390/molecules26175257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 08/19/2021] [Accepted: 08/26/2021] [Indexed: 11/17/2022] Open
Abstract
Warionia saharae Benth. & Coss. (Asteraceae) is an endemic species of North Africa naturally grown in the southwest of the Algerian Sahara. In the present study, this species’ hydromethanolic leaf extract was investigated for its phenolic profile characterized by ultra-high-performance liquid chromatography coupled with a diode array detector and an electrospray mass spectrometer (UHPLC-DAD-ESI/MS). Additionally, the chemical composition of W. saharae was analyzed by gas chromatography–mass spectrometry, and its antioxidant potential was assessed through five in vitro tests: DPPH● scavenging activity, ABTS●+ scavenging assay, galvinoxyl scavenging activity, ferric reducing power (FRP), and cupric reducing antioxidant capacity. The UHPLC-DAD-ESI/MS analysis allowed the detection and quantification of 22 compounds, with taxifolin as the dominant compound. The GC–MS analysis allowed the identification of 37 compounds, and the antioxidant activity data indicate that W. saharae extract has a very high capacity to capture radicals due to its richness in compounds with antioxidant capacity. The extract also showed potent α-glucosidase inhibition as well as a good anti-inflammatory activity. However, weak anti-α-amylase and anticholinesterase activities were recorded. Moreover, an in silico docking study was performed to highlight possible interactions between three significant compounds identified in W. saharae extract and α-glucosidase enzyme.
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Affiliation(s)
- Habiba Rechek
- Faculty of Sciences of Nature and Life, Mohamed Cherif Messaadia University, Souk-Ahras 41000, Algeria;
- Department of Biology of Organisms, Faculty of Sciences of Nature and Life, University of Batna 2, Mostefa Ben Boulaid, Batna 05078, Algeria
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Ammar Haouat
- Unité de Valorisation des Ressources Naturelles, Molécules Bioactives et Analyse Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri, Constantine 25000, Algeria;
- Department of Biology, Faculty of Sciences of Nature and Life, University of Oued Souf, Oued Souf 39000, Algeria
| | - Kaouther Hamaidia
- Faculty of Sciences of Nature and Life, Mohamed Cherif Messaadia University, Souk-Ahras 41000, Algeria;
- Laboratory of Applied Animal Biology, Badji Mokhtar University, Annaba 23000, Algeria;
- Correspondence: (K.H.); (D.C.G.A.P.); (A.M.S.S.); Tel.: +213-66-509-5858 (K.H.); +351-234-401407 (D.C.G.A.P.); +351-234-370714 (A.M.S.S.)
| | - Hamza Allal
- Department of Technology, Faculty of Technology, 20 August 1955 Skikda University, Skikda 21000, Algeria;
| | - Tarek Boudiar
- Centre de Recherche en Biotechnologie, Ali Mendjli Nouvelle Ville UV 03, Constantine 25000, Algeria; (T.B.); (C.B.)
| | - Diana C. G. A. Pinto
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
- Correspondence: (K.H.); (D.C.G.A.P.); (A.M.S.S.); Tel.: +213-66-509-5858 (K.H.); +351-234-401407 (D.C.G.A.P.); +351-234-370714 (A.M.S.S.)
| | - Susana M. Cardoso
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Chawki Bensouici
- Centre de Recherche en Biotechnologie, Ali Mendjli Nouvelle Ville UV 03, Constantine 25000, Algeria; (T.B.); (C.B.)
| | - Noureddine Soltani
- Laboratory of Applied Animal Biology, Badji Mokhtar University, Annaba 23000, Algeria;
| | - Artur M. S. Silva
- LAQV-REQUIMTE & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
- Correspondence: (K.H.); (D.C.G.A.P.); (A.M.S.S.); Tel.: +213-66-509-5858 (K.H.); +351-234-401407 (D.C.G.A.P.); +351-234-370714 (A.M.S.S.)
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Bingol Z, Kızıltaş H, Gören AC, Kose LP, Topal M, Durmaz L, Alwasel SH, Gulcin İ. Antidiabetic, anticholinergic and antioxidant activities of aerial parts of shaggy bindweed ( Convulvulus betonicifolia Miller subsp.) - profiling of phenolic compounds by LC-HRMS. Heliyon 2021; 7:e06986. [PMID: 34027185 PMCID: PMC8129935 DOI: 10.1016/j.heliyon.2021.e06986] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/21/2021] [Accepted: 04/29/2021] [Indexed: 12/24/2022] Open
Abstract
In order to evaluate the antioxidant activity of evaporated ethanolic extract (EESB) and lyophilized water extract (WESB) of Shaggy bindweed (Convulvulus betonicifolia Mill. Subs), some putative antioxidant methods such as DPPH· scavenging activity, ABTS•+ scavenging effect, ferric ions (Fe3+) reduction method, cupric ions (Cu2+) reducing capacity, and ferrous ions (Fe2+) binding activities were separately performed. Also, ascorbic acid, α-tocopherol and BHT were used as the standard compounds. Additionally, some phenolic compounds that responsible for antioxidant abilities of EESB and WESB were screened by liquid chromatography-high resolution mass spectrometry (LC-HRMS). At the same concentration, EESB and WESB demonstrated effective antioxidant abilities when compared to standards. In addition, EESB demonstrated IC50 values of 1.946 μg/mL against acetylcholinesterase (AChE), 0.815 μg/mL against α-glycosidase and 0.675 μg/mL against α-amylase enzymes.
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Affiliation(s)
- Zeynebe Bingol
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum 25240, Turkey
| | - Hatice Kızıltaş
- Vocational School of Health Services, Van Yuzuncu Yil University, Van 65080, Turkey
| | - Ahmet C Gören
- Department of Analytical Chemistry, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul 34093, Turkey.,Drug Application and Research Center, Bezmialem Vakif University, Istanbul 34093, Turkey
| | - Leyla Polat Kose
- Vocational School, Department of Pharmacy Services, Beykent University, Buyukcekmece, Istanbul 34500, Turkey
| | - Meryem Topal
- Vocational School of Health Services, Gumushane University, Gumushane 29000, Turkey
| | - Lokman Durmaz
- Department of Medical Services and Technology, Cayirli Vocational School, Erzincan Binali Yildirim University, Cayirli, Erzincan 24500, Turkey
| | - Saleh H Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - İlhami Gulcin
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum 25240, Turkey
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LC-HRMS Profiling and Antidiabetic, Anticholinergic, and Antioxidant Activities of Aerial Parts of Kınkor ( Ferulago stellata). Molecules 2021; 26:molecules26092469. [PMID: 33922645 PMCID: PMC8122897 DOI: 10.3390/molecules26092469] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 12/31/2022] Open
Abstract
Kınkor (Ferulago stellata) is Turkish medicinal plant species and used in folk medicine against some diseases. As far as we know, the data are not available on the biological activities and chemical composition of this medicinal plant. In this study, the phytochemical composition; some metabolic enzyme inhibition; and antidiabetic, anticholinergic, and antioxidant activities of this plant were assessed. In order to evaluate the antioxidant activity of evaporated ethanolic extract (EEFS) and lyophilized water extract (WEFS) of kınkor (Ferulago stellata), some putative antioxidant methods such as DPPH· scavenging activity, ABTS•+ scavenging activity, ferric ions (Fe3+) reduction method, cupric ions (Cu2+) reducing capacity, and ferrous ions (Fe2+)-binding activities were separately performed. Furthermore, ascorbic acid, BHT, and α-tocopherol were used as the standard compounds. Additionally, the main phenolic compounds that are responsible for antioxidant abilities of ethanol and water extracts of kınkor (Ferulago stellata) were determined by liquid chromatography-high-resolution mass spectrometry (LC-HRMS). Ethanol and water extracts of kınkor (Ferulago stellata) demonstrated effective antioxidant abilities when compared to standards. Moreover, ethanol extract of kınkor (Ferulago stellata) demonstrated IC50 values of 1.772 μg/mL against acetylcholinesterase (AChE), 33.56 ± 2.96 μg/mL against α-glycosidase, and 0.639 μg/mL against α-amylase enzyme respectively.
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Ren L, Guo HN, Yang J, Guo XY, Wei YS, Yang Z. Dissecting Efficacy and Metabolic Characteristic Mechanism of Taxifolin on Renal Fibrosis by Multivariate Approach and Ultra-Performance Liquid Chromatography Coupled With Mass Spectrometry-Based Metabolomics Strategy. Front Pharmacol 2021; 11:608511. [PMID: 33519473 PMCID: PMC7841412 DOI: 10.3389/fphar.2020.608511] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/26/2020] [Indexed: 12/15/2022] Open
Abstract
Taxifolin (TFN) is an important natural compound with antifibrotic activity; however, its pharmacological mechanism is not clear. In this study, our aim is to gain insight into the effects of TFN and its potential mechanisms in unilateral ureteral obstruction (UUO) animal model using metabolomics approach to identify the metabolic biomarkers and perturbed pathways. Serum metabolomics analysis by UPLC-Q-TOF/MS was carried out to discover the changes in the metabolic profile. It showed that TFN has a significant protective effect on UUO-induced renal fibrosis and a total of 32 potential biomarkers were identified and related to RF progression. Of note, 27 biomarkers were regulated by TFN treatment, which participate in eight metabolic pathways, including phenylalanine, tyrosine and tryptophan biosynthesis, and phenylalanine metabolism. It also showed that metabolomics was a promising strategy to better dissect metabolic characteristics and pharmacological mechanisms of natural compounds by multivariate approach and ultra-performance liquid chromatography coupled with mass spectrometry.
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Affiliation(s)
- Lei Ren
- Department of Clinical Laboratory, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Hao-Nan Guo
- Department of Clinical Laboratory, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Jun Yang
- Department of Clinical Laboratory, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Xiao-Ying Guo
- Department of Clinical Laboratory, Daqing Oilfield General Hospital, Daqing, China
| | - Ye-Sheng Wei
- Department of Clinical Laboratory, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Zhao Yang
- Department of Clinical Laboratory, Affiliated Hospital of Guilin Medical University, Guangxi, China
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Muramatsu D, Uchiyama H, Kida H, Iwai A. In vitro anti-inflammatory and anti-lipid accumulation properties of taxifolin-rich extract from the Japanese larch, Larix kaempferi. Heliyon 2020; 6:e05505. [PMID: 33336091 PMCID: PMC7734230 DOI: 10.1016/j.heliyon.2020.e05505] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/14/2020] [Accepted: 11/10/2020] [Indexed: 12/22/2022] Open
Abstract
The Japanese larch, (Larix kaempferi) is known to contain abundant taxifolin (dihydroquercetin) in its xylem. In this study, to assess the bioactivities of taxifolin rich methanol extract of L. kaempferi (LK-ME), anti-inflammatory effect, and the anti-lipid accumulation effect of LK-ME were investigated. The results showed that nitric oxide (NO) and reactive oxygen species (ROS) were reduced after treatment with LK-ME, and that lipid accumulation in adipocyte differentiated 3T3-L1 cells was inhibited after the cells were grown in medium containing LK-ME. Taxifolin, the major compound contained in LK-ME, and its related compounds, quercetin and luteolin also exhibited similar effects with LK-ME. The LK-ME exhibits relatively strong anti-inflammatory and anti-lipid accumulation activities compared with that of similar amounts of taxifolin contained in LK-ME, suggesting that other minor compounds contained in LK-ME is involved in the effects. These results indicate the potential of taxifolin-rich L. kaempferi extract for use as a supplement to prevent excess inflammation and obesity.
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Affiliation(s)
- Daisuke Muramatsu
- Aureo Science Co., Ltd., Hokudai Business Spring, North 21, West 12, Kita-ku, Sapporo, Hokkaido, 001-0021 Japan
- Aureo Co., Ltd., 54-1 Kazusakoito, Kimitsu, Chiba, 292-1149 Japan
| | - Hirofumi Uchiyama
- Aureo Science Co., Ltd., Hokudai Business Spring, North 21, West 12, Kita-ku, Sapporo, Hokkaido, 001-0021 Japan
- Aureo Co., Ltd., 54-1 Kazusakoito, Kimitsu, Chiba, 292-1149 Japan
| | - Hiroshi Kida
- Hokkaido University Research Center for Zoonosis Control, North 20, West 10, Kita-ku, Sapporo, Hokkaido, 001-0020, Japan
| | - Atsushi Iwai
- Aureo Science Co., Ltd., Hokudai Business Spring, North 21, West 12, Kita-ku, Sapporo, Hokkaido, 001-0021 Japan
- Aureo Co., Ltd., 54-1 Kazusakoito, Kimitsu, Chiba, 292-1149 Japan
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10
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Oguz M, Kalay E, Akocak S, Nocentini A, Lolak N, Boga M, Yilmaz M, Supuran CT. Synthesis of calix[4]azacrown substituted sulphonamides with antioxidant, acetylcholinesterase, butyrylcholinesterase, tyrosinase and carbonic anhydrase inhibitory action. J Enzyme Inhib Med Chem 2020; 35:1215-1223. [PMID: 32401067 PMCID: PMC7269057 DOI: 10.1080/14756366.2020.1765166] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 02/07/2023] Open
Abstract
A series of novel calix[4]azacrown substituted sulphonamide Schiff bases was synthesised by the reaction of calix[4]azacrown aldehydes with different substituted primary and secondary sulphonamides. The obtained novel compounds were investigated as inhibitors of six human (h) isoforms of carbonic anhydrases (CA, EC 4.2.1.1). Their antioxidant profile was assayed by various bioanalytical methods. The calix[4]azacrown substituted sulphonamide Schiff bases were also investigated as inhibitors of acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and tyrosinase enzymes, associated with several diseases such as Alzheimer, Parkinson, and pigmentation disorders. The new sulphonamides showed low to moderate inhibition against hCAs, AChE, BChE, and tyrosinase enzymes. However, some of them possessed relevant antioxidant activity, comparable with standard antioxidants used in the study.
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Affiliation(s)
- Mehmet Oguz
- Department of Chemistry, University of Selcuk, Konya, Turkey
- Department of Advanced Material and Nanotechnology, Selcuk University, Konya, Turkey
| | - Erbay Kalay
- Kars Vocational School, Kafkas University, Kars, Turkey
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Alessio Nocentini
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Florence, Italy
| | - Nebih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Mehmet Boga
- Department of Analytical Chemistry, Faculty of Pharmacy, Dicle University, Diyarbakir, Turkey
| | - Mustafa Yilmaz
- Department of Chemistry, University of Selcuk, Konya, Turkey
| | - Claudiu T. Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Florence, Italy
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11
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Muk T, Jiang PP, Stensballe A, Skovgaard K, Sangild PT, Nguyen DN. Prenatal Endotoxin Exposure Induces Fetal and Neonatal Renal Inflammation via Innate and Th1 Immune Activation in Preterm Pigs. Front Immunol 2020; 11:565484. [PMID: 33193334 PMCID: PMC7643587 DOI: 10.3389/fimmu.2020.565484] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 08/31/2020] [Indexed: 12/29/2022] Open
Abstract
Chorioamnionitis (CA) predisposes to preterm birth and affects the fetal mucosal surfaces (i.e., gut, lungs, and skin) via intra-amniotic (IA) inflammation, thereby accentuating the proinflammatory status in newborn preterm infants. It is not known if CA may affect more distant organs, such as the kidneys, before and after preterm birth. Using preterm pigs as a model for preterm infants, we investigated the impact of CA on fetal and neonatal renal status and underlying mechanisms. Fetal pigs received an IA dose of lipopolysaccharide (LPS), were delivered preterm by cesarean section 3 days later (90% gestation), and compared with controls (CON) at birth and at postnatal day 5. Plasma proteome and inflammatory targets in kidney tissues were evaluated. IA LPS-exposed pigs showed inflammation of fetal membranes, higher fetal plasma creatinine, and neonatal urinary microalbumin levels, indicating renal dysfunction. At birth, plasma proteomics revealed LPS effects on proteins associated with renal inflammation (up-regulated LRG1, down-regulated ICA, and ACE). Kidney tissues of LPS pigs at birth also showed increased levels of kidney injury markers (LRG1, KIM1, NGLA, HIF1A, and CASP3), elevated molecular traits related to innate immune activation (infiltrated MPO+ cells, complement molecules, oxidative stress, TLR2, TLR4, S100A9, LTF, and LYZ), and Th1 responses (CD3+ cells, ratios of IFNG/IL4, and TBET/GATA3). Unlike in plasma, innate and adaptive immune responses in kidney tissues of LPS pigs persisted to postnatal day 5. We conclude that prenatal endotoxin exposure induces fetal and postnatal renal inflammation in preterm pigs with both innate and adaptive immune activation, partly explaining the potential increased risks of kidney injury in preterm infants born with CA.
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Affiliation(s)
- Tik Muk
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ping-Ping Jiang
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark.,School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Allan Stensballe
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Kerstin Skovgaard
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Copenhagen, Denmark
| | - Per Torp Sangild
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Paediatrics, Odense University Hospital, Odense, Denmark
| | - Duc Ninh Nguyen
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
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12
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KORKMAZ N. New sandwich-type polymeric potassium-dicyanoargentate(I) complex: synthesis, characterization and enzymatic activity. Turk J Chem 2020; 44:1110-1121. [PMID: 33488216 PMCID: PMC7751906 DOI: 10.3906/kim-2004-42] [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: 04/12/2020] [Accepted: 06/15/2020] [Indexed: 12/20/2022] Open
Abstract
Coordination compounds containing dicyanoargentate(I) have remarkable biological potential due to their therapeutic antibacterial, antifungal, antibiofilm, and anticancer properties. In this study, a new dicyanoargentate(I)-based complex was synthesized and characterized by various procedures (elemental, thermal, FT-IR for complex) involving crystal analysis of the complex. In addition, the biological activity of this new compound on the acetylcholinesterase (AChE) enzyme, an important enzyme for the nervous system, was investigated. When the infrared (IR) spectrum of the complex is examined, the OH vibration peak resulting from H2O molecules in the structure at 3948-3337 cm-1 and at 2138 cm-1, along with a CN peak coordinated to Ag, can be seen, indicating that the mass remaining in the thermal degradation of the complex at 1000 ◦ C is the weight corresponding to the metal mixture consisting of K+Ag (calc.: 68.06). The crystal method revealed that the complex has a sandwich-like, polymeric chemical structure with layers formed by K+ cations and [Ag(CN)2H2O]- anions. Therefore, the AChE enzyme has potential therapeutic uses in improving ACh levels in brain cells, in reducing various side effects, and in improving cognitive impairment, especially in advanced Alzheimer's disease patients. In this study, the activity of this newly synthesized complex on AChE was also investigated. As a result of this research, [Ag(CN)2(H2O)K] had 0.0282 ± 0.010 μM Ki values against AChE. The compound was therefore a good inhibitor for the AChE enzyme. This type of compound can be used for the development of novel anticholinesterase drugs.
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Affiliation(s)
- Nesrin KORKMAZ
- Department of Biotechnology, Faculty of Science, Bartın University, BartınTurkey
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13
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Polat Kose L, Bingol Z, Kaya R, Goren AC, Akincioglu H, Durmaz L, Koksal E, Alwasel SH, Gülçin İ. Anticholinergic and antioxidant activities of avocado (Folium perseae) leaves – phytochemical content by LC-MS/MS analysis. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2020. [DOI: 10.1080/10942912.2020.1761829] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Leyla Polat Kose
- Vocational School, Department of Pharmacy Services, Beykent University, Buyukcekmece, Istanbul, Turkey
| | - Zeynebe Bingol
- Faculty of Sciences, Department of Chemistry, Atatürk University, Erzurum, Turkey
| | - Ruya Kaya
- Faculty of Sciences, Department of Chemistry, Atatürk University, Erzurum, Turkey
- Central Research and Application Laboratory, Agri Ibrahim Cecen University, Agri, Turkey
| | - Ahmet C. Goren
- Department of Analytical Chemistry, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkey
- Drug Application and Research Center, Bezmialem Vakif University, Istanbul, Turkey
| | - Hulya Akincioglu
- Department of Chemistry, Faculty of Sciences and Arts, Agri Ibrahim Cecen University, Agri, Turkey
| | - Lokman Durmaz
- Department of Medical Services and Technology, Cayirli Vocational School, Erzincan Binali Yildirim University, Cayirli, Erzincan, Turkey
| | - Ekrem Koksal
- Faculty of Sciences and Arts, Department of Chemistry, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Saleh H. Alwasel
- King Saud University, Department of Zoology, College of Science, Saudi Arabia
| | - İlhami Gülçin
- Faculty of Sciences, Department of Chemistry, Atatürk University, Erzurum, Turkey
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14
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Lolak N, Boga M, Tuneg M, Karakoc G, Akocak S, Supuran CT. Sulphonamides incorporating 1,3,5-triazine structural motifs show antioxidant, acetylcholinesterase, butyrylcholinesterase, and tyrosinase inhibitory profile. J Enzyme Inhib Med Chem 2020; 35:424-431. [PMID: 31899985 PMCID: PMC6968691 DOI: 10.1080/14756366.2019.1707196] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
A series of 16 novel benzenesulfonamides incorporating 1,3,5-triazine moieties substituted with aromatic amines, dimethylamine, morpholine and piperidine were investigated. These compounds were assayed for antioxidant properties by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay, 2,2`-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical decolarisation assay and metal chelating methods. They were also investigated as inhibitors of acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and tyrosinase, which are associated with several diseases such as Alzheimer, Parkinson and pigmentation disorders. These benzenesulfonamides showed moderate DPPH radical scavenging and metal chelating activity, and low ABTS cation radical scavenging activity. Compounds 2 b, 3d and 3 h showed inhibitory potency against AChE with % inhibition values of >90. BChE was also effectively inhibited by most of the synthesised compounds with >90% inhibition potency. Tyrosinase was less inhibited by these compounds.
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Affiliation(s)
- Nabih Lolak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Mehmet Boga
- Department of Analytical Chemistry, Faculty of Pharmacy, Dicle University, Diyarbakir, Turkey
| | - Muhammed Tuneg
- Department of Analytical Chemistry, Faculty of Pharmacy, Dicle University, Diyarbakir, Turkey
| | - Gulcin Karakoc
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Suleyman Akocak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, Turkey
| | - Claudiu T Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Florence, Italy
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15
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A Novel Ag-N-Heterocyclic Carbene Complex Bearing the Hydroxyethyl Ligand: Synthesis, Characterization, Crystal and Spectral Structures and Bioactivity Properties. CRYSTALS 2020. [DOI: 10.3390/cryst10030171] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, a novel silver N-heterocyclic carbene (Ag-NHC) complex bearing hydroxyethyl substituent has been synthesized from the hydroxyethyl-substituted benzimidazolium salt and silver oxide by using in-situ deprotonation method. A structure of the Ag-NHC complex was characterized by using UV-Vis, FTIR, 1H-NMR and 13C-NMR spectroscopies and elemental analysis techniques. Also, the crystal structure of the novel complex was determined by single-crystal X-ray diffraction method. In this paper, compound 1 showed excellent inhibitory effects against some metabolic enzymes. This complex had Ki of 1.14 0.26 µM against human carbonic anhydrase I (hCA I), 1.88±0.20 µM against human carbonic anhydrase II (hCA I), and 10.75±2.47 µM against α-glycosidase, respectively. On the other hand, the Ki value was found as 25.32±3.76 µM against acetylcholinesterase (AChE) and 41.31±7.42 µM against butyrylcholinesterase (BChE), respectively. These results showed that the complex had drug potency against some diseases related to using metabolic enzymes.
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16
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Agbo EN, Gildenhuys S, Mphahlele MJ. Inhibitory Effects of Novel 7-Substituted 6-iodo-3- O-Flavonol Glycosides against Cholinesterases and β-secretase Activities, and Evaluation for Potential Antioxidant Properties. Molecules 2019; 24:molecules24193500. [PMID: 31561628 PMCID: PMC6804162 DOI: 10.3390/molecules24193500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 11/16/2022] Open
Abstract
A series of 7-halogeno- (X = F, Cl, Br) and 7-methoxy-substituted acetylated 6-iodo-3-O-flavonol glycosides were prepared, and evaluated for inhibitory effect in vitro against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) activities. 7-Bromo-2-(4-chlorophenyl)-6-iodo-4H-chromen-4-one-3-O-2,3,4,6-O-tetraacetyl-β-d-glucopyranoside (2k) and 7-bromo-6-iodo-2-(4-methoxyphenyl)-4H-chromen-4-one-3-O-2,3,4,6-O-tetraacetyl-β-d-glucopyranoside (2l) exhibited significant inhibitory effect against AChE activity when compared to the activity of the reference standard, donepezil. Compound 2k was found to be selective against AChE and to exhibit reduced inhibitory effect against BChE activity. 6-Iodo-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one-3-O-2,3,4,6-O-tetraacetyl-β-d-glucopyranoside (2p) was found to exhibit increased activity against BChE, more so than the activity of donepezil. The most active compounds were also evaluated for inhibitory effect against β-secretase activity and for potential radical scavenging activities. The experimental data were complemented with molecular docking (in silico) studies of the most active compounds into the active sites of these enzymes.
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Affiliation(s)
- Emmanuel N Agbo
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Florida 1710, South Africa.
| | - Samantha Gildenhuys
- Department of Life & Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Private Bag X06, Florida 1710, South Africa.
| | - Malose J Mphahlele
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Florida 1710, South Africa.
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17
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Llorent-Martinez EJ, Ruiz-Riaguas A, Sinan KI, Bene K, Fernández-de Cordova ML, Picot-Allain C, Mahomoodally F, Saleem H, Zengin G. Exploring Chemical Profiles and Bioactivities of Harungana madagascariensis Lam. ex Poir. Leaves and Stem Bark Extracts: A New Source of Procyanidins. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1653903] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Eulogio J. Llorent-Martinez
- Faculty of Experimental Sciences, Department of Physical and Analytical Chemistry, University of Jaén, Jaén, Spain
| | - Alba Ruiz-Riaguas
- Faculty of Experimental Sciences, Department of Physical and Analytical Chemistry, University of Jaén, Jaén, Spain
| | | | - Kouadio Bene
- Unité de Formation et de Recherche Sciences de la Nature, Laboratoire de Botanique et Phytothérapie, Université Nangui Abrogoua, Abidjan, Côte d'Ivoire
| | | | - Carene Picot-Allain
- Faculty of Science, Department of Health Sciences, University of Mauritius, Réduit, Mauritius
| | - Fawzi Mahomoodally
- Faculty of Science, Department of Health Sciences, University of Mauritius, Réduit, Mauritius
| | - Hammad Saleem
- School of Pharmacy, Monash University, Selangor Darul Ehsan, Malaysia
- Institute of Pharmaceutical Sciences, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Gokhan Zengin
- Science Faculty, Department of Biology, Selcuk Universtiy, Konya, Turkey
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18
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Francioso A, Franke K, Villani C, Mosca L, D'Erme M, Frischbutter S, Brandt W, Sanchez-Lamar A, Wessjohann L. Insights into the Phytochemistry of the Cuban Endemic Medicinal Plant Phyllanthus orbicularis: Fideloside, a Novel Bioactive 8- C-glycosyl 2,3-Dihydroflavonol. Molecules 2019; 24:E2855. [PMID: 31390787 PMCID: PMC6695706 DOI: 10.3390/molecules24152855] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/31/2019] [Accepted: 08/03/2019] [Indexed: 11/21/2022] Open
Abstract
Phyllanthus orbicularis (Phyllanthaceae) is an endemic evergreen tropical plant of Cuba that grows in the western part of the island and is used in traditional medicine as an infusion. The aqueous extract of this plant presents a wide range of pharmacological activitiessuch as antimutagenic, antioxidant and antiviral effects. Given the many beneficial effects and the great interest in the development of new pharmacological products from natural sources, the aim of this work was to investigate the phytochemistry of this species and to elucidate the structure of the main bioactive principles. Besides the presence of several known polyphenols, the major constituent was hitherto not described. The chemical structure of this compound, here named Fideloside, was elucidated by means of HR-ESIMS/MSn, 1D/2D NMR, FT-IR, and ECD as (2R,3R)-(-)-3',4',5,7-tetrahydroxydihydroflavonol-8-C-β-D-glucopyranoside. The compound, as well as the plant aqueous preparations, showed promising bioactive properties, i.e., anti-inflammatory capacity in human explanted monocytes, corroborating future pharmacological use for this new natural C-glycosyl flavanonol.
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Affiliation(s)
- Antonio Francioso
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany.
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, 00185 Roma, Italy.
- Department of Plant Biology, Faculty of Biology, University of Havana, 10 200 La Habana, Cuba.
| | - Katrin Franke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - Claudio Villani
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, 00185 Roma, Italy
| | - Luciana Mosca
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, 00185 Roma, Italy
| | - Maria D'Erme
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, 00185 Roma, Italy
| | - Stefan Frischbutter
- Department of Dermatology and Allergy, Charité, Universitätsmedizin Berlin, 10117 Berlin, Germany
- German Rheumatism Research Centre, a Leibniz Institute, 10117 Berlin, Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - Angel Sanchez-Lamar
- Department of Plant Biology, Faculty of Biology, University of Havana, 10 200 La Habana, Cuba
| | - Ludger Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany.
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19
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Muramatsu D, Uchiyama H, Kida H, Iwai A. Cell cytotoxity and anti-glycation activity of taxifolin-rich extract from Japanese larch, Larix kaempferi. Heliyon 2019; 5:e02047. [PMID: 31338467 PMCID: PMC6627962 DOI: 10.1016/j.heliyon.2019.e02047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 06/05/2019] [Accepted: 07/03/2019] [Indexed: 01/01/2023] Open
Abstract
The larches, the Larix genus of plants are known as a natural source of taxifolin (dihydroquercetin), and extracts of its taxifolin rich xylem are used in dietary supplements to maintain health. In the present study, to assess biological activities of a methanol extract of the Japanese larch, Larix kaempferi (LK-ME), the effects of LK-ME on cell viability, inflammatory cytokine expression, and glycation were investigated. The effects of taxifolin which is known to be a main compound of LK-ME, and its related flavonoids, quercetin and luteolin were also examined. The results show that taxifolin exhibits lower growth inhibition activity and lesser induction activity of inflammatory cytokines in a human monocyte derived cell line, THP-1 cells, while in vitro anti-glycation activities of taxifolin were inhibiting at comparable levels to those of quercetin and luteolin. The growth inhibition and the cytokine induction activities, and the anti-glycation effects of LK-ME are assumed to have properties similar to taxifolin. The results of high performance liquid chromatography (HPLC) analysis indicated that taxifolin was detected as the main peak of LK-ME at the absorbance of 280 nm, and the concentration of taxifolin was measured as 3.12 mg/ml. The actual concentration of taxifolin in LK-ME is lower than the concentration estimated from the IC50 values calculated by the results of glycation assays, suggesting that other compounds contained in LK-ME are involved in the anti-glycation activity.
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Affiliation(s)
- Daisuke Muramatsu
- Aureo Science Co., Ltd., Hokudai Business Spring, North 21, West 12, Kita-ku, Sapporo, Hokkaido, 001-0021, Japan
- Aureo Co., Ltd., 54-1 Kazusakoito, Kimitsu, Chiba, 292-1149, Japan
| | - Hirofumi Uchiyama
- Aureo Science Co., Ltd., Hokudai Business Spring, North 21, West 12, Kita-ku, Sapporo, Hokkaido, 001-0021, Japan
- Aureo Co., Ltd., 54-1 Kazusakoito, Kimitsu, Chiba, 292-1149, Japan
| | - Hiroshi Kida
- Hokkaido University Research Center for Zoonosis Control, North 20, West 10, Kita-ku, Sapporo, Hokkaido, 001-0020, Japan
| | - Atsushi Iwai
- Aureo Science Co., Ltd., Hokudai Business Spring, North 21, West 12, Kita-ku, Sapporo, Hokkaido, 001-0021, Japan
- Aureo Co., Ltd., 54-1 Kazusakoito, Kimitsu, Chiba, 292-1149, Japan
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20
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Muhammad AJ, Ahmed D, Yousuf S, Tabassum N, Qamar MT. Synthesis, crystal structures, Hirshfeld surface analysis and spectroscopic studies of two Schiff bases of anisaldehyde and their urease and acetylcholinesterase inhibitory and antioxidant properties. Heliyon 2019; 5:e01758. [PMID: 31193469 PMCID: PMC6529709 DOI: 10.1016/j.heliyon.2019.e01758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 02/28/2019] [Accepted: 05/15/2019] [Indexed: 02/06/2023] Open
Abstract
The growing demand of pharmaceutical industry for more effective drugs requires new molecules with promising medicinal activities. In the present work, a natural product anisaldehyde was treated with hydrazine and 3,5-dichloroaniline to synthesize their Schiff bases, ASB1 and ASB2, which were assessed for various bioactivities. ASB1 was synthesized by conventional reflux method while ASB2 was synthesized by reflux as well as by mechanochemical grinding method which gave higher yield. The bases were recrystalised, and their structures were elucidated based on XRD and spectroscopic studies. Hirshfeld surface analysis was also carried out. They showed considerable urease inhibitory activity, almost comparable with the standard thiourea. The activity of ASB1 was much higher than ASB2. Acetylcholinesterase inhibitory activity of ASB1 was also higher than that of ASB2. The antioxidant activities were determined using DPPH, ABTS radical scavenging and total antioxidant capacity (TAC) assays. The bases were very poor scavengers of DPPH radical. However, they showed considerable anti-radical activity against ABTS radical, ASB2 being more active than ASB1, while ASB1 showed higher TAC than ASB2. In conclusion, the bases appeared to have good drugability as inhibitors of urease and acetylcholinesterase enzymes. They can be easily synthesized for possible large-scale applications. The grinding method proved to be more efficient than the reflux method.
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Affiliation(s)
| | - Dildar Ahmed
- Department of Chemistry, Forman Christian College, Lahore, Pakistan
| | - Sammer Yousuf
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Nida Tabassum
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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21
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Topal F. Anticholinergic and antidiabetic effects of isoeugenol from clove (Eugenia caryophylata) oil. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2019. [DOI: 10.1080/10942912.2019.1597882] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fevzi Topal
- Gumushane Vocational School, Department of Chemical and Chemical Processing Technologies, Laboratory Technology Program, Gumushane University, Gumushane, Turkey
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22
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Gul HI, Mete E, Eren SE, Sakagami H, Yamali C, Supuran CT. Designing, synthesis and bioactivities of 4-[3-(4-hydroxyphenyl)-5-aryl-4,5-dihydro-pyrazol-1-yl]benzenesulfonamides. J Enzyme Inhib Med Chem 2017; 32:169-175. [PMID: 27774817 PMCID: PMC6009964 DOI: 10.1080/14756366.2016.1243536] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 09/28/2016] [Accepted: 09/28/2016] [Indexed: 12/12/2022] Open
Abstract
In this study, 4-[3-(4-hydroxyphenyl)-5-aryl-4,5-dihydro-pyrazol-1-yl]benzenesulfonamide (1-9) types compounds were synthesized and their chemical structures were confirmed by 1H NMR, 13C NMR and HRMS spectra. Cytotoxic and carbonic anhydrase (CA) inhibitory effects of the compounds were investigated. Cytotoxicity experiments pointed out that compound 4, (4-[5-(4-chlorophenyl)-3-(4-hydroxyphenyl)-4,5-dihydro-pyrazol-1-yl]benzenesulfonamide), exerting the highest tumor selectivity (TS) and potency selectivity expression (PSE) values, can be considered as a lead compound of this study in terms of development of novel anticancer agents. All synthesized sulfonamides showed a good inhibition profile on hCA IX and XII in the range of 53.5-923 nM and 6.2-95 nM, respectively. These compounds were 2.5-13.4 times more selective for the inhibition of hCA XII versus hCA IX, except compound 2 which had similar inhibitory action towards both isoenzymes.
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Affiliation(s)
- Halise Inci Gul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Ebru Mete
- Department of Chemistry, Faculty of Arts and Sciences, Ataturk University, Erzurum, Turkey
| | - Sakip Emre Eren
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Hiroshi Sakagami
- Division of Pharmacology, Meikai University School of Dentistry, Sakado, Saitama, Japan
| | - Cem Yamali
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Claudiu T. Supuran
- Polo Scientifico, Laboratorio di Chimica Bioinorganica, Universita degli Studi di Firenze, Sesto Fiorentino, Italy
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23
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Soyer Z, Uysal S, Parlar S, Tarikogullari Dogan AH, Alptuzun V. Synthesis and molecular docking studies of some 4-phthalimidobenzenesulfonamide derivatives as acetylcholinesterase and butyrylcholinesterase inhibitors. J Enzyme Inhib Med Chem 2017; 32:13-19. [PMID: 27766908 PMCID: PMC6009942 DOI: 10.1080/14756366.2016.1226298] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/16/2016] [Accepted: 08/16/2016] [Indexed: 12/03/2022] Open
Abstract
A series of 4-phthalimidobenzenesulfonamide derivatives were designed, synthesized and evaluated for the inhibitory activities against acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). Structures of the title compounds were confirmed by spectral and elemental analyses. The cholinesterase (ChE) inhibitory activity studies were carried out using Ellman's colorimetric method. The biological activity results revealed that all of the title compounds (except for compound 8) displayed high selectivity against AChE. Among the tested compounds, compound 7 was found to be the most potent against AChE (IC50= 1.35 ± 0.08 μM), while compound 3 exhibited the highest inhibition against BuChE (IC50= 13.41 ± 0.62 μM). Molecular docking studies of the most active compound 7 in AChE showed that this compound can interact with both the catalytic active site (CAS) and the peripheral anionic site (PAS) of AChE.
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Affiliation(s)
- Zeynep Soyer
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir, Turkey
| | - Sirin Uysal
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir, Turkey
| | - Sulunay Parlar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir, Turkey
| | | | - Vildan Alptuzun
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir, Turkey
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24
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Gulçin İ, Abbasova M, Taslimi P, Huyut Z, Safarova L, Sujayev A, Farzaliyev V, Beydemir Ş, Alwasel SH, Supuran CT. Synthesis and biological evaluation of aminomethyl and alkoxymethyl derivatives as carbonic anhydrase, acetylcholinesterase and butyrylcholinesterase inhibitors. J Enzyme Inhib Med Chem 2017; 32:1174-1182. [PMID: 28891347 PMCID: PMC6445195 DOI: 10.1080/14756366.2017.1368019] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Compounds containing nitrogen and sulfur atoms can be widely used in various fields such as industry, medicine, biotechnology and chemical technology. Therefore, the reactions of aminomethylation and alkoxymethylation of mercaptobenzothiazole, mercaptobenzoxazole and 2-aminothiazole were developed. Additionally, the alkoxymethyl derivatives of mercaptobenzoxazole and 2-aminothiazole were synthesized by a reaction with hemiformals, which are prepared by the reaction of alcohols and formaldehyde. In this study, the inhibitory effects of these molecules were investigated against acetylcholinesterase (AChE), butyrylcholinesterase (BChE) enzymes and carbonic anhydrase I, and II isoenzymes (hCA I and II). Both hCA isoenzymes were significantly inhibited by the recently synthesized molecules, with Ki values in the range of 58–157 nM for hCA I, and 81–215 nM for hCA II. Additionally, the Ki parameters of these molecules for BChE and AChE were calculated in the ranges 23–88 and 18–78 nM, respectively.
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Affiliation(s)
- İlhami Gulçin
- a Department of Chemistry, Faculty of Sciences , Ataturk University , Erzurum , Turkey.,b Department of Zoology, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Malahat Abbasova
- c Laboratory of Theoretical Bases of Synthesis and Action Mechanism of Additives , Institute of Chemistry of Additives, Azerbaijan National Academy of Sciences , Baku , Azerbaijan
| | - Parham Taslimi
- a Department of Chemistry, Faculty of Sciences , Ataturk University , Erzurum , Turkey
| | - Zübeyir Huyut
- d Department of Biochemistry, Faculty of Medical , Yüzüncü Yıl University , Van , Turkey
| | - Leyla Safarova
- c Laboratory of Theoretical Bases of Synthesis and Action Mechanism of Additives , Institute of Chemistry of Additives, Azerbaijan National Academy of Sciences , Baku , Azerbaijan
| | - Afsun Sujayev
- c Laboratory of Theoretical Bases of Synthesis and Action Mechanism of Additives , Institute of Chemistry of Additives, Azerbaijan National Academy of Sciences , Baku , Azerbaijan
| | - Vagif Farzaliyev
- c Laboratory of Theoretical Bases of Synthesis and Action Mechanism of Additives , Institute of Chemistry of Additives, Azerbaijan National Academy of Sciences , Baku , Azerbaijan
| | - Şükrü Beydemir
- e Department of Biochemistry, Faculty of Pharmacy , Anadolu University , Eskişehir , Turkey
| | - Saleh H Alwasel
- b Department of Zoology, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Claudiu T Supuran
- f Dipartimento di Chimica Ugo Schiff , Universita degli Studi di Firenze , Florence , Italy.,g Neurofarba Department, Section of Pharmaceutical and Nutriceutical Sciences , Universita degli Studi di Firenze , Florence , Italy
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25
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Phytochemical study of Illicium angustisepalum and its biological activities. Acta Pharm Sin B 2017; 7:485-490. [PMID: 28752034 PMCID: PMC5518666 DOI: 10.1016/j.apsb.2017.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/31/2017] [Accepted: 06/01/2017] [Indexed: 11/20/2022] Open
Abstract
Sixteen compounds, including two new natural products (1 and 2), were obtained from the twigs of Illicium angustisepalum. The structures were elucidated based on NMR, MS, IR data and optical rotation values. Compounds 4, 5, 6 and 8 displayed moderate antibacterial activities against clinical isolates; compounds 4, 5, 8, 9 and 15 protected neural cells against oxidative stress; and compounds 10 and 14 exhibited anti-acetylcholinesterase activity.
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26
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Locatelli M, Zengin G, Uysal A, Carradori S, De Luca E, Bellagamba G, Aktumsek A, Lazarova I. Multicomponent pattern and biological activities of seven Asphodeline taxa: potential sources of natural-functional ingredients for bioactive formulations. J Enzyme Inhib Med Chem 2016; 32:60-67. [PMID: 27774819 PMCID: PMC6010134 DOI: 10.1080/14756366.2016.1235041] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The current study was carried out to evaluate multicomponent pattern, biological and enzymatic activities of seven Asphodeline taxa root extracts as useful ingredients, due to the fact that these plants are commonly used as traditional food supplements in Turkish regions. The extracts were characterized for free anthraquinones and phenolics to obtain a specific chemical fingerprint useful for quality control. These analyzes were coupled to biological and enzymatic activities in order to obtain comprehensive information of the natural product. Free anthraquinones and phenolics were determined using validated HPLC-PDA methods. Antioxidant properties were determined by different procedures including free radical scavenging, reducing power, phosphomolybdenum and metal chelating assays. Ames assay was performed to evaluate mutagenic/antimutagenic properties. Enzyme inhibitory activities were tested against cholinesterase, tyrosinase, α-amylase and α-glucosidase. From the herein reported results, Asphodeline could be valuable for the production of bioactive products or food supplements for cosmetic and pharmaceutical industries.
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Affiliation(s)
- Marcello Locatelli
- a Department of Pharmacy , University "G. d'Annunzio" of Chieti-Pescara , Chieti , Italy.,b Interuniversity Consortium of Structural and Systems Biology , Rome , Italy
| | - Gokhan Zengin
- c Science Faculty, Department of Biology , Selcuk University , Konya , Turkey
| | - Ahmet Uysal
- d Deparment of Medicinal Laboratory, Vocational School of Health Services , Selcuk University , Turkey
| | - Simone Carradori
- a Department of Pharmacy , University "G. d'Annunzio" of Chieti-Pescara , Chieti , Italy
| | - Elisa De Luca
- a Department of Pharmacy , University "G. d'Annunzio" of Chieti-Pescara , Chieti , Italy
| | - Giuseppe Bellagamba
- a Department of Pharmacy , University "G. d'Annunzio" of Chieti-Pescara , Chieti , Italy
| | | | - Irina Lazarova
- e Department of Chemistry, Faculty of Pharmacy , Medical University of Sofia , Bulgaria
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Discovery of Potent Carbonic Anhydrase and Acetylcholinesterase Inhibitors: 2-Aminoindan β-Lactam Derivatives. Int J Mol Sci 2016; 17:ijms17101736. [PMID: 27775608 PMCID: PMC5085765 DOI: 10.3390/ijms17101736] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 10/02/2016] [Accepted: 10/10/2016] [Indexed: 12/11/2022] Open
Abstract
β-Lactams are pharmacologically important compounds because of their various biological uses, including antibiotic and so on. β-Lactams were synthesized from benzylidene-inden derivatives and acetoxyacetyl chloride. The inhibitory effect of these compounds was examined for human carbonic anhydrase I and II (hCA I, and II) and acetylcholinesterase (AChE). The results reveal that β-lactams are inhibitors of hCA I, II and AChE. The Ki values of β-lactams (2a–k) were 0.44–6.29 nM against hCA I, 0.93–8.34 nM against hCA II, and 0.25–1.13 nM against AChE. Our findings indicate that β-lactams (2a–k) inhibit both carbonic anhydrases (CA) isoenzymes and AChE at low nanomolar concentrations.
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28
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Yang P, Xu F, Li HF, Wang Y, Li FC, Shang MY, Liu GX, Wang X, Cai SQ. Detection of 191 Taxifolin Metabolites and Their Distribution in Rats Using HPLC-ESI-IT-TOF-MS(n). Molecules 2016; 21:molecules21091209. [PMID: 27649117 PMCID: PMC6273498 DOI: 10.3390/molecules21091209] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/04/2016] [Accepted: 09/06/2016] [Indexed: 01/12/2023] Open
Abstract
Taxifolin is a ubiquitous bioactive constituent of foods and herbs. To thoroughly explore its metabolism in vivo, an HPLC-ESI-IT-TOF-MSn method combined with specific metabolite detection strategy was used to detect and identify the metabolites of taxifolin in rats. Of the 191 metabolites tentatively identified, 154 were new metabolites, 69 were new compounds and 32 were dimers. This is the first report of the in vivo biotransformation of a single compound into more than 100 metabolites. Furthermore, acetylamination and pyroglutamic acid conjugation were identified as new metabolic reactions. Seventeen metabolites were found to have various taxifolin-related bioactivities. The potential targets of taxifolin and 63 metabolites were predicted using PharmMapper, with results showing that more than 60 metabolites have the same five targets. Metabolites with the same fragment pattern may have the same pharmacophore. Thus these metabolites may exert the same pharmacological effects as taxifolin through an additive effect on the same drug targets. This observation indicates that taxifolin is bioactive not only in the parent form, but also through its metabolites. These findings enhance understanding of the metabolism and effective forms of taxifolin and may provide further insight of the beneficial effects of taxifolin and its derivatives.
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Affiliation(s)
- Ping Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Feng Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Hong-Fu Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Yi Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Feng-Chun Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Ming-Ying Shang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Guang-Xue Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Xuan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Shao-Qing Cai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
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Huyut Z, Beydemir Ş, Gülçin İ. Inhibitory effects of some phenolic compounds on the activities of carbonic anhydrase: from in vivo to ex vivo. J Enzyme Inhib Med Chem 2015; 31:1234-40. [PMID: 26670706 DOI: 10.3109/14756366.2015.1117459] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Carbonic anhydrase (CA) inhibitors have been used for more than 60 years for therapeutic purposes in many diseases table such as in medications against antiglaucoma and as diuretics. Phenolic compounds are a new class of CA inhibitor. In our study, we tested the effects of arachidonoyl dopamine, 2,4,6-trihydroxybenzaldehyde and 3,4-dihydroxy-5-methoxybenzoic acid on esterase and the CO2-hydratase activities of CA I and II isozymes purified from in vivo to ex vivo. The Ki values of arachidonoyl dopamine, 2,4,6-trihydroxybenzaldehyde and 3,4-dihydroxy-5-methoxybenzoic acid were 203.80, 1170.00 and 910.00 μM, respectively for hCA I and 75.25, 354.00 and 1510.00 μM, respectively for hCA II. Additionally, IC50 values from in vivo studies were found to be in the range of 173.25-1360.0 μM for CA I and II, respectively, using CO2-hydratase activity methods. These results demonstrated that phenolic compounds used in in vivo studies could be used in different biomedical applications to inhibit approximately 30% of the CO2-hydratase activity of the total CA enzyme of rat erythrocytes.
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Affiliation(s)
- Zübeyir Huyut
- a Department of Biochemistry , Faculty of Medical, Yüzüncü Yıl University , Van , Turkey
| | - Şükrü Beydemir
- b Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey , and
| | - İlhami Gülçin
- b Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey , and.,c Department of Zoology , College of Science, King Saud University , Riyadh , Saudi Arabia
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30
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Oktay K, Köse LP, Şendil K, Gültekin MS, Gülçin İ, Supuran CT. The synthesis of (Z)-4-oxo-4-(arylamino)but-2-enoic acids derivatives and determination of their inhibition properties against human carbonic anhydrase I and II isoenzymes. J Enzyme Inhib Med Chem 2015; 31:939-45. [PMID: 26308288 DOI: 10.3109/14756366.2015.1071808] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The synthesis of (Z)-4-oxo-4-(arylamino)but-2-enoic acid (4) derivatives containing structural characteristics that can be used for the synthesis of several active molecules, is presented. Some of the butenoic acid derivatives (4a, 4c, 4e, 4i, 4j, 4k) are synthesized following literature procedures and at the end of the reaction. In addition, structures of all synthesized derivatives (4a-4m) were determined by (1)H-NMR, (13)C-NMR and IR spectroscopy. Carbonic anhydrase is a metalloenzyme involved in many crucial physiologic processes as it catalyzes a simple but fundamental reaction, the reversible hydration of carbon dioxide to bicarbonate and protons. Significant results were obtained by evaluating the enzyme inhibitory activities of these derivatives against human carbonic anhydrase hCA I and II isoenzymes (hCA I and II). Butenoic acid derivatives (4a-4m) strongly inhibited hCA I and II with Kis in the low nanomolar range of 1.85 ± 0.58 to 5.04 ± 1.46 nM against hCA I and in the range of 2.01 ± 0.52 to 2.94 ± 1.31 nM against hCA II.
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Affiliation(s)
- Koray Oktay
- a Faculty of Science, Department of Chemistry , Ataturk University , Erzurum , Turkey
| | - Leyla Polat Köse
- a Faculty of Science, Department of Chemistry , Ataturk University , Erzurum , Turkey
| | - Kıvılcım Şendil
- b Faculty of Science and Arts, Department of Chemistry , Kafkas University , Kars , Turkey
| | | | - İlhami Gülçin
- a Faculty of Science, Department of Chemistry , Ataturk University , Erzurum , Turkey .,c Department of Zoology , College of Science, King Saud University , Riyadh , Saudi Arabia
| | - Claudiu T Supuran
- d Dipartimento di Chimica Ugo Schiff, Università degli Studi di Firenze , Sesto Fiorentino (Firenze) , Italy , and.,e Neurofarba Department, Section of Pharmaceutical and Nutriceutical Sciences, Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
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31
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Taslimi P, Gülçin İ, Öztaşkın N, Çetinkaya Y, Göksu S, Alwasel SH, Supuran CT. The effects of some bromophenols on human carbonic anhydrase isoenzymes. J Enzyme Inhib Med Chem 2015; 31:603-7. [DOI: 10.3109/14756366.2015.1054820] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Parham Taslimi
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey,
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey,
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia,
| | - Necla Öztaşkın
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey,
| | - Yasin Çetinkaya
- Department of Food Technology, Oltu Vocational School, Atatürk University, Oltu, Erzurum, Turkey,
| | - Süleyman Göksu
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey,
| | - Saleh H. Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia,
| | - Claudiu T. Supuran
- Dipartimento di Chimica Ugo Schiff, Universita degli Studi di Firenze, Sesto Fiorentino, Firenze, Italy, and
- Section of Pharmaceutical and Nutriceutical Sciences, Neurofarba Department, Universita Degli Studi di Firenze, Sesto Fiorentino, Florence, Italy
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