<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-19T04:50:22Z</responseDate><request verb="GetRecord" identifier="oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/16183" metadataPrefix="oai_dc">https://ebyu-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/16183</identifier><datestamp>2026-10-18T20:30:59Z</datestamp><setSpec>openaire</setSpec><setSpec>driver</setSpec><setSpec>com_ebyu_10000</setSpec><setSpec>col_ebyu_10001</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>Investigation of the inhibition effects of some antibiotics on human erythrocyte carbonic anhydrase isozymes</dc:title><dc:creator>Coban, T.A.</dc:creator><dc:creator>Nalbantoglu, B.</dc:creator><dc:creator>Cil, M.Y.</dc:creator><dc:creator>Ozdemir, H.</dc:creator><dc:creator>Kufrevioglu, O.I.</dc:creator><dc:subject>Antibiotics</dc:subject><dc:subject>Carbonic anhydrase isozymes</dc:subject><dc:subject>Inhibition</dc:subject><dc:subject>antibiotic agent</dc:subject><dc:subject>carbonate dehydratase</dc:subject><dc:subject>cefazolin</dc:subject><dc:subject>cefoperazone</dc:subject><dc:subject>cefradine</dc:subject><dc:subject>chloramphenicol derivative</dc:subject><dc:subject>sulbactam</dc:subject><dc:subject>acidification</dc:subject><dc:subject>affinity chromatography</dc:subject><dc:subject>antimicrobial activity</dc:subject><dc:subject>article</dc:subject><dc:subject>basolateral membrane</dc:subject><dc:subject>blood sampling</dc:subject><dc:subject>brush border</dc:subject><dc:subject>drug effect</dc:subject><dc:subject>enzyme activity</dc:subject><dc:subject>erythrocyte membrane</dc:subject><dc:subject>human</dc:subject><dc:subject>human cell</dc:subject><dc:subject>kidney tubule absorption</dc:subject><dc:subject>membrane binding</dc:subject><dc:description>In this study, the in vitro effects of some antibiotics on carbonic anhydrase (CA) isozymes have been investigated. Human erythrocyte CA-I and CA-II isozymes were separately purified by affinity chromatography. Inhibition effects of four different antibiotics on CA isozymes were determined by using the CO2-Hydratase method. I50 values of antibiotics were obtained by drawing % Activity [Actibiotic] graphs. The obtained I50 values of cefazolin sodium, cephradine, sulbactan/cefoperazone and chloramphenicol sodium succinate were 9, 16, 19 and 48 mM on CA-I and 6, 10, 15 and 17 mM on CA-II, respectively. Antibiotics dosages should be taken into consideration because of the inhibition effect on CA which pH regulatory enzyme in body.</dc:description><dc:date>1998</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/ebyu/16183</dc:identifier><dc:identifier>1300-0144</dc:identifier><dc:language>en</dc:language><dc:relation>Turkish Journal of Medical Sciences</dc:relation><dc:rights>info:eu-repo/semantics/openAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/16183</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>