<?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>2026-10-21T23:29:33Z</responseDate><request verb="GetRecord" identifier="oai:adakent-rdlopen.rawdatalibrary.net:adakent/10083" metadataPrefix="oai_dc">https://adakent-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:adakent-rdlopen.rawdatalibrary.net:adakent/10083</identifier><datestamp>2026-10-21T19:35:05Z</datestamp><setSpec>openaire</setSpec><setSpec>driver</setSpec><setSpec>com_adakent_10000</setSpec><setSpec>col_adakent_10001</setSpec><setSpec>com_adakent_10007</setSpec><setSpec>col_adakent_10030</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>Ameliorative effect of Silk Fibroin against 5-Fluorouracil (5-FU)-induced gastrointestinal damage in rats</dc:title><dc:creator>Sexirli, Ahmet Ozer</dc:creator><dc:creator>Aykaç, Asli</dc:creator><dc:creator>Özkayalar, Hanife</dc:creator><dc:creator>Savtekin, Gokge</dc:creator><dc:creator>Sayiner, Serkan</dc:creator><dc:subject>Silk Fibroin</dc:subject><dc:subject>5-Fluoruracil</dc:subject><dc:subject>iNOS</dc:subject><dc:subject>CD4+</dc:subject><dc:subject>CD8+</dc:subject><dc:description>Objective: 5-Fluorouracil (5-FU), a widely administered anti-cancer drug, causes gastrointestinal damage through various mechanisms. This study aimed to investigate the ameliorative effect of silk fibroin (SF), which has anti-inflammatory and antioxidant properties, against 5 FU-induced gastrointestinal damage. Materials and methods: Wistar albino rats were divided into 3 groups; Control group, 5-FU group (30mg/kg/day on days 0, 2, 4), and 5-FU+SF (30 mg/kg/day 5-FU on days 0, 2, 4 + 600 mg/kg/day SF for 14 days). At the end of the experiment, stomach and intestinal tissue samples were collected and immunohistochemically iNOS, caspase-3, CD4+ and CD8+ were measured. Besides, structural damage was assessed with hematoxylin-eosin and caspase-3 and 9 activities were evaluated using western blot analysis. Results and Discussion: It was determined that iNOS, caspase-3, caspase-9 activities, CD4+ and CD8+ levels and structural damage significantly increased in both stomach and intestinal tissues. Furthermore, elevated markers were regressed almost to control levels in SF administrated group. Conclusion: SF may have an ameliorative effect, thus reducing the gastrointestinal damage caused by 5 FU. More clinical and scientific research should be conducted as the silk fibroin may be a suitable candidate against the adverse effects of chemotherapeuic agents.</dc:description><dc:publisher>IBN SINA TRUST</dc:publisher><dc:date>2023-10</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/adakent/10083</dc:identifier><dc:identifier>https://doi.org/10.3329/bjms.v22i4.68679</dc:identifier><dc:identifier>2223-4721</dc:identifier><dc:language>en</dc:language><dc:relation>BANGLADESH JOURNAL OF MEDICAL SCIENCE</dc:relation><dc:rights>info:eu-repo/semantics/openAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://adakent-rdlopen.rawdatalibrary.net/tr/items/adakent/10083</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>