title: Inhibitory effects of some phenolic compounds on the activities of carbonic anhydrase: from in vivo to ex vivo.
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.
authors.affiliation: a Department of Biochemistry , Faculty of Medical, Yüzüncü Yıl University , Van , Turkey .
authors.forename: Zübeyir
authors.initials: Z
authors.lastname: Huyut
authors.affiliation: b Department of Chemistry , Faculty of Science, Atatürk University , Erzurum , Turkey , and.
authors.forename: Şükrü
authors.initials: Ş
authors.lastname: Beydemir
authors.affiliation: 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.
authors.forename: İlhami
authors.initials: İ
authors.lastname: Gülçin
mesh_terms: D000818:Animals; D002257:Carbonic Anhydrase Inhibitors / Q000494:pharmacology*; D010636:Phenols / Q000494:pharmacology*; D051381:Rats
chemical_list: D002257:Carbonic Anhydrase Inhibitors; D010636:Phenols
keywords: Arachidonoyl dopamine; carbonic anhydrase; enzyme inhibition; ex vivo; in vivo; phenolic compounds