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Öğe The acute effect of humic acid on iron accumulation in rats(Biological Trace Element Research, 2016) Çağın, Yasir Furkan; Şahin, Nurhan; Polat, Alaadin; Erdoğan, Mehmet Ali; Atayan, Yahya; Eyol, Ergül; Bilgiç, Yılmaz; Seçkin, Yüksel; Çolak, CemilAbstract Free iron leads to the formation of pro-oxidant reactive oxygen species (ROS). Humic acids (HAs) enhance permeability of cellular wall and act as a chelator through electron transferring. This study was designed to test chelator effect of HA on iron as well as its anti-oxidant effect against the iron-induced hepatotoxicity and cardiotoxicity. The rats used were randomly divided into four groups (n = 8/group): group I (the control group); group II (the HA group), humic acid (562 mg/kg) was given over 10 days by oral gavage; group III (the iron group), iron III hydroxide polymaltose (250 mg/kg) was given over 10 days by intraperitoneal route; and group IV (the HA plus iron group), received the iron (similar to group II) plus humic acid (similar to those in groups II and III) group. Blood and two tissue samples both from liver and heart were obtained for biochemical and histopathological evaluations. Iron deposition, the iron-induced hepatotoxicity, and cardiotoxicity were demonstrated by histopathological and biochemical manner. However, no significant differences were observed in the serum biochemical values and thehistopathological results among the iron and the HA plus iron groups in the liver tissue but not in the heart tissue. The protective effects of humic acid against iron-induced cardiotoxicity were shown but not against hepatotoxicity in our study.Öğe The acute effect of humic acid on ıron accumulation in rats(Biological Trace Element Research, 2016) Çağın, Yasir Furkan; Şahin, Nurhan; Polat, Alaadin; Erdoğan, Mehmet Ali; Atayan, Yahya; Eyol, Ergül; Bilgiç, Yılmaz; Seçkin, Yüksel; Çolak, CemilFree iron leads to the formation of pro-oxidant reactive oxygen species (ROS). Humic acids (HAs) enhance permeability of cellular wall and act as a chelator through electron transferring. This study was designed to test chelator effect of HA on iron as well as its anti-oxidant effect against the iron-induced hepatotoxicity and cardiotoxicity. The rats used were randomly divided into four groups (n = 8/group): group I (the control group); group II (the HA group), humic acid (562 mg/kg) was given over 10 days by oral gavage; group III (the iron group), iron III hydroxide polymaltose (250 mg/kg) was given over 10 days by intraperitoneal route; and group IV (the HA plus iron group), received the iron (similar to group II) plus humic acid (similar to those in groups II and III) group. Blood and two tissue samples both from liver and heart were obtained for biochemical and histopathological evaluations. Iron deposition, the iron-induced hepatotoxicity, and cardiotoxicity were demonstrated by histopathological and biochemical manner. However, no significant differences were observed in the serum biochemical values and the histopathological results among the iron and the HA plus iron groups in the liver tissue but not in the heart tissue. The protective effects of humic acid against iron-induced cardiotoxicity were shown but not against hepatotoxicity in our study.Öğe Cytotoxic effects of cucurbitacin ı and ecballium elaterium on breast cancer cells(Natural product communıcatıons, 2018) Yılmaz, Kadir; Karakuş, Fuat; Eyol, Ergül; Tosun, Emir; Yılmaz, İsmet; Unuvar, SongülThe objective of this study was to investigate the inhibitory effect of cucurbitacin I (CuI) and Ecballium elaterium L. (fruit juice and chloroform extract) on breast cancer cells (MCF-7 and MDA-MB-231). The Cul content of E. elaterium fruit juice and chloroform extract was quantified using high performance liquid chromatography. The cytotoxic effects of the fruit juice, chloroform extract and CuI were determined by MTT, wound healing and colony formation assays; all had an anti-proliferative activity on the breast cancer cells. Clarifying the mechanisms of cucurbitacins will enable the identification of new molecular targets for breast cancer therapy.Öğe Kukurbitazin I'in Anti Kanserojen Etkisinin Karaciğere Metastaz Yapmış CC531 Rat Modelinde Araştırılması(2014) Eyol, Ergül; Baysar, Ahmet; Türköz, Yusuf; Tosun, Emir[Abstract Not Available]
