101
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Aksu K, Topal F, Gulcin İ, Tümer F, Göksu S. Acetylcholinesterase Inhibitory and Antioxidant Activities of Novel Symmetric Sulfamides Derived from Phenethylamines. Arch Pharm (Weinheim) 2015; 348:446-55. [DOI: 10.1002/ardp.201500035] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/13/2015] [Accepted: 03/20/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Kadir Aksu
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - Fevzi Topal
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - İlhami Gulcin
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
- Fetal Programming of Diseases Research Chair; Zoology Department; College of Science; King Saud University; Riyadh Saudi Arabia
| | - Ferhan Tümer
- Department of Chemistry; Faculty of Science and Arts; Sutcu Imam University; Kahramanmaras Turkey
| | - Süleyman Göksu
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
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102
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Antioxidant and acetylcholinesterase inhibition properties of novel bromophenol derivatives. Bioorg Chem 2015; 60:49-57. [PMID: 25956827 DOI: 10.1016/j.bioorg.2015.04.006] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/17/2015] [Accepted: 04/19/2015] [Indexed: 02/05/2023]
Abstract
In this study, series of novel bromophenol derivatives were synthesized and investigated for their antioxidant and AChE inhibition properties. Novel brominated diarylmethanones were obtained from the acylation reactions of benzoic acids with substituted benzenes. One of the bromodiarylmethanone was synthesized from the bromination of diarylmethanone with molecular bromine. All diarylmethanones were converted into their bromophenol derivatives with BBr3. The antioxidant activities of all synthesized compounds were elucidated by using various bioanalytical assays. Radical scavenging activities of compounds 10-24 were evaluated by means of DPPH and ABTS(+) scavenging activities. In addition, reducing ability of 10-24 were determined by Fe(3+), Cu(2+), and [Fe(3+)-(TPTZ)2](3) reducing activities. α-Tocopherol, trolox, BHA, and BHT were used as positive antioxidant and radical scavenger molecules. On the other hand, IC50 values were calculated for DPPH, ABTS(+) scavenging, and AChE inhibition effects of novel compounds. The results obtained from the current studies clearly show that novel bromophenol derivatives 20-24 have considerable antioxidant, antiradical, and AChE inhibition effects.
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103
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Gocer H, Topal F, Topal M, Küçük M, Teke D, Gülçin İ, Alwasel SH, Supuran CT. Acetylcholinesterase and carbonic anhydrase isoenzymes I and II inhibition profiles of taxifolin. J Enzyme Inhib Med Chem 2015; 31:441-7. [PMID: 25893707 DOI: 10.3109/14756366.2015.1036051] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Taxifolin, also known as dihydroquercetin, is a flavonoid commonly found in plants. Carbonic anhydrase (CA, EC 4.2.1.1) plays an important role in many critical physiological events including carbon dioxide (CO2)/bicarbonate (HCO3(-)) respiration and pH regulation. There are 16 known CA isoforms in humans, of which human hCA isoenzymes I and II (hCA I and II) are ubiquitous cytosolic isoforms. In this study, the inhibition properties of taxifolin against the slow cytosolic isoenzyme hCA I, and the ubiquitous and dominant rapid cytosolic isoenzyme hCA II were studied. Taxifolin, as a naturally bioactive flavonoid, has a K(i) of 29.2 nM against hCA I, and 24.2 nM against hCA II. For acetylcholinesterase enzyme (AChE) inhibition, K(i) parameter of taxifolin was determined to be 16.7 nM. These results clearly show that taxifolin inhibited both CA isoenzymes and AChE at the nM levels.
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Affiliation(s)
- Hulya Gocer
- a Central Researching Laboratory, Agri Ibrahim Cecen University , Agri , Turkey
| | - Fevzi Topal
- b Department of Medical Services and Techniques, Vocational School of Health Services, Gumushane University , Gumushane , Turkey
| | - Meryem Topal
- b Department of Medical Services and Techniques, Vocational School of Health Services, Gumushane University , Gumushane , Turkey
| | - Murat Küçük
- c Department of Chemistry, Faculty of Sciences, Atatürk University , Erzurum , Turkey
| | - Dilek Teke
- c Department of Chemistry, Faculty of Sciences, Atatürk University , Erzurum , Turkey
| | - İlhami Gülçin
- c Department of Chemistry, Faculty of Sciences, Atatürk University , Erzurum , Turkey .,d Zoology Department, College of Science, Fetal Programming of Diseases Research Chair, King Saud University , Riyadh , Saudi Arabia
| | - Saleh H Alwasel
- d Zoology Department, College of Science, Fetal Programming of Diseases Research Chair, King Saud University , Riyadh , Saudi Arabia
| | - Claudiu T Supuran
- e Dipartimento di Chimica Ugo Schiff, Universita degli Studi di Firenze , Sesto Fiorentino , Firenze , Italy , and.,f Neurofarba Department, Section of Pharmaceutical and Nutriceutical Sciences, Universita degli Studi di Firenze , Sesto Fiorentino , Florence , Italy
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104
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Taslimi P, Gulcin I, Ozgeris B, Goksu S, Tumer F, Alwasel SH, Supuran CT. The human carbonic anhydrase isoenzymes I and II (hCA I and II) inhibition effects of trimethoxyindane derivatives. J Enzyme Inhib Med Chem 2015; 31:152-7. [DOI: 10.3109/14756366.2015.1014476] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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105
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Boztaş M, Çetinkaya Y, Topal M, Gülçin İ, Menzek A, Şahin E, Tanc M, Supuran CT. Synthesis and Carbonic Anhydrase Isoenzymes I, II, IX, and XII Inhibitory Effects of Dimethoxybromophenol Derivatives Incorporating Cyclopropane Moieties. J Med Chem 2014; 58:640-50. [DOI: 10.1021/jm501573b] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Murat Boztaş
- Department
of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Yasin Çetinkaya
- Department
of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
- Oltu
Vocational School, Department of Food Technology, Atatürk University, Oltu, Erzurum, Turkey
| | - Meryem Topal
- 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
| | - Abdullah Menzek
- Department
of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Ertan Şahin
- Department
of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Muhammet Tanc
- Dipartimento
NEUROFARBA, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Via Ugo Schiff 6, I-50019 Sesto Fiorentino, Firenze, Italy
| | - Claudiu T. Supuran
- Dipartimento
NEUROFARBA, Sezione di Scienze Farmaceutiche, Università degli Studi di Firenze, Via Ugo Schiff 6, I-50019 Sesto Fiorentino, Firenze, Italy
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106
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Özgeriş B, Aksu K, Tümer F, Göksu S. Synthesis of Dopamine, Rotigotin, Ladostigil, Rasagiline Analogues 2-Amino-4,5,6-trimethoxyindane, 1-Amino-5,6,7-trimethoxyindane, and Their Sulfamide Derivatives. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.957321] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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107
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Akbaba Y, Bastem E, Topal F, Gülçin İ, Maraş A, Göksu S. Synthesis and Carbonic Anhydrase Inhibitory Effects of Novel Sulfamides Derived from 1-Aminoindanes and Anilines. Arch Pharm (Weinheim) 2014; 347:950-7. [DOI: 10.1002/ardp.201400257] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/06/2014] [Accepted: 08/15/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Yusuf Akbaba
- Department of Basic Sciences; Faculty of Science; Erzurum Technical University; Erzurum Turkey
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - Enes Bastem
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - Fevzi Topal
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
- Department of Medical Services and Techniques; Vocational School of Health Services; Gumushane University; Gumushane Turkey
| | - İlhami Gülçin
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
- Department of Zoology; College of Science; King Saud University; Riyadh Saudi Arabia
| | - Ahmet Maraş
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
| | - Süleyman Göksu
- Department of Chemistry; Faculty of Science; Ataturk University; Erzurum Turkey
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