<?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>2026-10-19T01:08:51Z</responseDate><request verb="GetRecord" identifier="oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/16746" metadataPrefix="oai_dc">https://ebyu-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/16746</identifier><datestamp>2026-10-18T20:38:51Z</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>Biochemical Investigation of the Protective Effect of Thiamine Pyrophosphate on Methotrexate-Induced Gastrotoxicity in Rats</dc:title><dc:creator>Cinar, Irfan</dc:creator><dc:creator>Gulapoglu, Mine</dc:creator><dc:creator>Suleyman, Halis</dc:creator><dc:subject>Gastrotoxicity</dc:subject><dc:subject>Methotrexate</dc:subject><dc:subject>Thiamine</dc:subject><dc:subject>Thiamin pyrophosphate</dc:subject><dc:subject>Ulcer</dc:subject><dc:subject>INDUCED OXIDATIVE DAMAGE</dc:subject><dc:subject>DOXORUBICIN</dc:subject><dc:subject>RADICALS</dc:subject><dc:subject>INJURY</dc:subject><dc:subject>TISSUE</dc:subject><dc:subject>ASSAY</dc:subject><dc:subject>ACID</dc:subject><dc:subject>Education, Scientific Disciplines</dc:subject><dc:subject>Pharmacology &amp; Pharmacy</dc:subject><dc:subject>Education &amp; Educational Research</dc:subject><dc:description>Aim: The aim of the study is to investigate the protective effect of thiamine pyrophosphate on methotrexate- induced gastrotoxicity biochemically in rats and to compare it with thiamine. Methods: Rats were divided into four groups as sham (SG), thiamine+ methotrexate (TAMTX), thiamine pyrophosphate +methotrexate (TPMTX) and Methotrexate (MTX) groups. 5 mg/kg methotrexate was administrated to 24 hr-fasted rat groups by oral gastric tube except sham rats. 20 mg/kg thiamine was injected to TAMTX group and 20 mg/kg thiamine pyrophosphate was injected to TPMTX group i.p. 5 min before the methotrexate administration. Equal amount distilled water was injected i.p. to SG and MTX groups. 6 hr after the methotrexate administration, the rats were sacrificed with high dose thiopental anesthesia (50 mg/kg). The stomachs of the rats were extracted and MDA, MPO, GSH and SOD analyzes were performed. Results: Biochemical results were evaluated by comparing among groups. While tGSH and MDA levels and MPO and SOD activities were 4.2 +/- 0.6, 10.0 +/- 0.9, 7.4 +/- 0.8, 5.2 +/- 0.9 mu mol/g in MTX group, these parameters were 11.0 +/- 1.0, 3.4 +/- 0.4, 3.3 +/- 0.5, 13.2 +/- 1.1 mu mol/g in SG group in the gastric tissue. These parameters were measured as 4.8 +/- 0.8, 8.7 +/- 0.8, 5.9 +/- 0.5, 6.1 +/- 0.8 mu mol/g in TAMTX group and 10.8 +/- 0.8, 4.0 +/- 0.5, 3.6 +/- 0.4, 10.5 +/- 0.9 mu mol/g in TPMTX group. Conclusion: The results showed that thiamine pyrophosphate prevented methotrexate induced oxidative damage in the gastric tissue, but thiamine could not prevent.</dc:description><dc:publisher>ASSOC PHARMACEUTICAL TEACHERS INDIA</dc:publisher><dc:date>2020</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/ebyu/16746</dc:identifier><dc:identifier>https://doi.org/10.5530/ijper.54.2.45</dc:identifier><dc:identifier>0019-5464</dc:identifier><dc:language>en</dc:language><dc:relation>INDIAN JOURNAL OF PHARMACEUTICAL EDUCATION AND RESEARCH</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/16746</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>