Browsing by Author "Albayrak, O."

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Citation - Scopus: 3
Dodder (Cuscuta Sp.) Extract Ameliorates Liver Fibrosis in Bile Duct-Ligated Rats
(Istanbul University Press, 2022) Albayrak, O.; Ozbeyli, D.; Sen, A.; Cevik, O.; Erdogan, O.; Ercan, F.; Sener, G.
Objective: The aim is to examine the possible protective effect of Cuscuta sp. extract against liver damage induced by biliary obstruction in rats. Materials and Methods: To induce biliary obstruction, the bile duct ligation (BDL) method was used. Sprague Dawley rats were allocated to 4 groups: Control (C), Cuscuta (CUS), bile duct ligation (BDL), and bile duct ligation + Cuscuta (BDL+CUS). Control and BDL rats were given physiological saline (SF), while CUS and BDL+CUS groups were administered 250 mg/ kg of Cuscuta extract by oral gavage. At the end of 28th day, the rats were decapitated, serum and tissue samples were collected, and aspartate aminotransferase (AST), alanine transaminase (ALT), and direct and total bilirubin (DB and TB) levels were determined in blood samples. In liver tissues, transforming growth factor-β (TGF-β), 8-hydroxyguanosine (8-OHdG), hydroxyproline, and sodium-potassium ATPase (Na+/K+-ATPase) levels were determined. Results: Serum samples of rats with cholestasis had high ALT, AST, DB, and TB levels, while TGF-β, 8-OHdG, and hydroxyproline concentrations were found to be significantly high in tissues. Hepatic Na+/K+-ATPase levels were decreased through biliary obstruction. Biochemical parameters were drastically reversed by Cuscuta care; also, this was supported histologically. Conclusion: Results showed that Cuscuta extract, through its antioxidant and anti-inflammatory properties, provided protection against oxidative injury by biliary obstruction. Also, these results confirm the traditional use of Cuscuta sp. as hepatoprotective. © Ankara Medical Journal.All rights reserved.
Protective Effects of Cuscuta Sp. Against Cardiorenal Injury in Bile Duct-Ligated Rats
(Istanbul University Press, 2025) Hatipoglu, B.N.; Ozbeyli, D.; Sen, A.; Cevik, O.; Ercan, F.; Albayrak, O.; Sener, G.
Objective: Bile duct ligation (BDL) obstructs bile flow, resulting in bile and toxic substances buildup that causes liver damage. This study investigated the protective effects of Cuscuta sp. methanol extract (CUS) against cardiorenal injury in bile duct-ligated rats. Materials and Methods: Rats were categorised into four groups: Control (C), CUS, BDL, and BDL+CUS. The C and BDL groups received saline, whereas the other groups received oral 250 mg/kg CUS. After 28 days, blood, kidney, and heart tissue samples were collected for biochemical and histological analyses. Serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), direct bilirubin (DB), and total bilirubin (TB) levels were analysed to determine liver function, while Transforming growth factor-beta (TGF-β) and hydroxyproline (HYP) levels were evaluated for fibrosis, and 8-hydroxy-2-deoxyguanosine (8-OHdG) levels alongside Na+/K+-ATPase activity were analysed to assess oxidative stress and membrane injury in the heart and renal tissues. Results: AST, ALT, DB, and TB levels were significantly elevated in the BDL group compared with the C group; however, the levels were distinctly lower in the BDL+CUS group than in the BDL group. Additionally, in both tissues, TGF-β, HYP, and 8-OHdG levels were higher in the BDL group than in the C group, but decreased in the BDL+CUS group, with Na+/K+-ATPase activity being lower in BDL group compared with the C group and significantly increased in BDL+CUS group. Conclusion: CUS has protective effects against oxidative damage and offers antioxidant and anti-inflammatory benefits against cholestasis-induced tissue injury. © 2025. Hatipoglu, B. N., Ozbeyli, D., Sen, A., Cevik, O., Ercan, F., Albayrak, O., Ede Pazarbasi, S., Kanpalta Mustafaoglu, F. & Sener, G.