WoS İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/6
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Article Protective Effects of Cuscuta Sp. Against Cardiorenal Injury in Bile Duct-Ligated Rats(Istanbul Univ, 2025) Hatipoglu, Bilge Nur; Ozbeyli, Dilek; Sen, Ali; Cevik, Ozge; Ercan, Feriha; Albayrak, Omercan; Sener, GokselObjective: 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-beta) 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-beta, 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.Article Dodder (Cuscuta sp.) Extract Prevents Cognitive Deficits in a Rat Model of Hepatic Encephalopathy(Kare Publ, 2024) Cevik, Ozge; Sen, Ali; Şener, Göksel; Ercan, Feriha; Doğan, Ahmet; Özbeyli, Dilek; Hatipoğlu, Bilge Nur; Albayrak, Omercan; Koyuncuoglu, TurkanOBJECTIVE: In our study, the protective effect of dodder plant extract against encephalopathy induced by cholestatic liver disease model was investigated. METHODS: Spraque Dawley rats were used in the study. For the cholestatic liver disease model, the bile duct ligation (BDL) was applied. The groups were determined as control, Cuscuta sp. (CUS), BDL and BDL + CUS. Double ligation was performed in the bile duct in the BDL groups. For the applications, saline (SF) was administered to the control and BDL groups for 28 days while 250 mg/ kg of Cuscuta sp. extract was given by oral gavage to the CUS and BDL + CUS groups. At the end of the experiment, cognitive eval- uations were made by applying new object recognition and Morris water maze tests. After these tests, blood-brain barrier (BBB) measurements were made in half of the groups. In the other half of the groups, brain tissue samples were taken by decapitation and transforming growth factor-beta (TGF-β), 8-hydroxydeoxyguanosine (8-OHdG) and sodium-potassium adenosine triphospha- tase (Na+/K+-ATPase) measurements were made in the tissues. Histological examinations of the tissues were also performed. RESULTS: Cognitive performance was low, and BBB permeability was found to be increased in the group with bile duct liga- tion. In addition, TGF-β and 8-OHdG levels were increased in tissues, while Na+/K+-ATPase enzyme activity was suppressed. Treatment with Cuscuta sp. increased cognitive performance and decreased BBB permeability. Other biochemical parameters examined were significantly (p<0.05–0.001) reversed and supported by histological findings. CONCLUSION: Our findings in the study suggest that dodder plant may be beneficial for the protection of cognitive perfor- mance and brain tissue in encephalopathy caused by cholestasis. Keywords: Cuscuta sp.; cholestasis; encephalopathy; fibrosis.