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Medical Sciences

Turkish Journal of Medical Sciences

2021

Oxidative stress

Articles 1 - 4 of 4

Full-Text Articles in Medicine and Health Sciences

Dental And Temporomandibular Joint Alterations In Rheumatoid Arthritis Patients Andtheir Association With Salivary Oxidative Stress, Deni̇z Yaman, Duygu Göller Bulut, Gülbahar Ustaoğlu, Emre Avci, Murat Taşçi Jan 2021

Dental And Temporomandibular Joint Alterations In Rheumatoid Arthritis Patients Andtheir Association With Salivary Oxidative Stress, Deni̇z Yaman, Duygu Göller Bulut, Gülbahar Ustaoğlu, Emre Avci, Murat Taşçi

Turkish Journal of Medical Sciences

Background/aim: Rheumatoid arthritis (RA) is the most extensive inflammatory arthritis causing permanent deformities in the joint. Increasing evidence suggests that oxidative stress is a substantial factor in the pathogenesis of RA. This study aimed to examine the salivary oxidant-antioxidant status of RA and control groups and to compare these biomarkers by correlating them with disease activity, acute phase reactants, and clinical findings. Materials and methods: Age and sex-matched 60 participants including 30 patients with RA and 30 control (50 females, 10 males; mean age: 42.62 ± 10.89 years) were evaluated. RA disease activity and severity were evaluated by the disease …


Lutein/Zeaxanthin Isomers Regulate Neurotrophic Factors And Synaptic Plasticity Intrained Rats, Cemal Orhan, Füsun Erten, Beşi̇r Er, Mehmet Tuzcu, Nurhan Şahi̇n, Öznur Ece Durmaz Kurşun, Vijaya Juturu, Kazi̇m Şahi̇n Jan 2021

Lutein/Zeaxanthin Isomers Regulate Neurotrophic Factors And Synaptic Plasticity Intrained Rats, Cemal Orhan, Füsun Erten, Beşi̇r Er, Mehmet Tuzcu, Nurhan Şahi̇n, Öznur Ece Durmaz Kurşun, Vijaya Juturu, Kazi̇m Şahi̇n

Turkish Journal of Medical Sciences

Background/aim: This study was conducted to elucidate the effects of lutein/zeaxanthin isomers (L/Zi) on lipid metabolism, oxidative stress, NF-ΚB/Nrf2 pathways, and synaptic plasticity proteins in trained rats. Materials and methods: Wistar rats were distributed into four groups: 1) control, 2) L/Zi: rats received L/Zi at the dose of 100 mg/kg by oral gavage, 3) exercise, 4) exercise+L/Zi: rats exercised and received L/Zi (100 mg/kg) by oral gavage. The duration of the study was eight weeks. Results: Exercise combined with L/Zi reduced lipid peroxidation and improved antioxidant enzyme activities of muscle and cerebral cortex in rats (p < 0.001). In the Exercise + L/Zi group, muscle and cerebral cortex Nrf2 and HO-1 levels increased, while NF-ΚB levels decreased (p


Dynamic Thiol/Disulfide Homeostasis As Oxidative Stress Marker In Diabetic Ketoacidosis, Yavuz Otal, Fati̇h Ahmet Kahraman, Fadi̇me Güllü Haydar, Özcan Erel Jan 2021

Dynamic Thiol/Disulfide Homeostasis As Oxidative Stress Marker In Diabetic Ketoacidosis, Yavuz Otal, Fati̇h Ahmet Kahraman, Fadi̇me Güllü Haydar, Özcan Erel

Turkish Journal of Medical Sciences

Background/aim: The aim of present study was to investigate the dynamic thiol/disulfide homeostasis as oxidative stress marker in diabetic ketoacidosis (DKA). Materials and methods: A total of 77 participants consisting of 32 patients with DKA and 45 healthy volunteers were included in the study. Thiol/disulfide homeostasis (TDH) [total thiol-native thiol/disulfide changes] were measured in both groups (patient group and control group) using a brand new method developed by Erel and Neselioglu. Half of the difference between total thiol and native thiol concentrations gives the amount of disulfide bond. Results: Total thiol, native thiol, and disulfide levels in blood were found …


The Effect Of 1,25-Dihydroxyvitamin D3 On Liver Damage, Oxidative Stress, And Advanced Glycation End Products In Experimental Nonalcoholicand Alcoholic- Fatty Liver Disease, İlknur Bi̇ngül, Abdurrahman Fati̇h Aydin, Canan Küçükgergi̇n, Asi̇ye Işin Doğan Eki̇ci̇, Semra Abbasoğlu, Mehmet Müjdat Uysal Jan 2021

The Effect Of 1,25-Dihydroxyvitamin D3 On Liver Damage, Oxidative Stress, And Advanced Glycation End Products In Experimental Nonalcoholicand Alcoholic- Fatty Liver Disease, İlknur Bi̇ngül, Abdurrahman Fati̇h Aydin, Canan Küçükgergi̇n, Asi̇ye Işin Doğan Eki̇ci̇, Semra Abbasoğlu, Mehmet Müjdat Uysal

Turkish Journal of Medical Sciences

Background/aim: Oxidative stress and advanced glycation end products (AGEs) formation are proposed as effective mechanisms in the pathogenesis of nonalcoholic fatty liver disease (NAFLD) and alcoholic liver disease (ALD). 1,25(OH)2 D3 was proposed to have antioxidant, antiinflammatory and antiglycation properties. In this study, the effect of 1,25(OH)2 D3 treatment on oxidative stress parameters and AGEs levels together with hepatic histopathology was investigated in high fructose (HFr) or ethanol (EtOH)-treated rats. Materials and methods: Rats were treated with fructose (30%) or ethanol (5-20%) in drinking water with and without 1,25(OH)2 D3 treatment (5 µg/kg two times a week) for 8 weeks. …