scholarly journals 1,25(OH)2D3 Inhibited Ferroptosis in Zebrafish Liver Cells (ZFL) by Regulating Keap1-Nrf2-GPx4 and NF-κB-hepcidin Axis

2021 ◽  
Vol 22 (21) ◽  
pp. 11334
Author(s):  
Ke Cheng ◽  
Yanqing Huang ◽  
Chunfang Wang
Keyword(s):  
Vitamin D ◽  
Liver Cells ◽  
Oxygen Species ◽  
Protective Effects ◽  
Iron Ion ◽  
Total Glutathione ◽  
Programed Cell Death ◽  
The Relationship ◽  
Gpx Activity ◽  
Zebrafish Liver

Ferroptosis is a kind of iron-dependent programed cell death. Vitamin D has been shown to be an antioxidant and a regulator of iron metabolism, but the relationship between vitamin D and ferroptosis is poorly studied in fish. This study used zebrafish liver cells (ZFL) to establish a ferroptosis model to explore the effect of 1,25(OH)2D3 on cell ferroptosis and its mechanism of action. The results showed that different incubation patterns of 1,25(OH)2D3 improved the survival rate of ZFL, mitigated mitochondrial damage, enhanced total glutathione peroxidase (GPx) activity, and reduced intracellular reactive oxygen species (ROS), lipid peroxidation (LPO), and malondialdehyde (MDA), as well as iron ion levels, with the best effect at 200 pM 1,25(OH)2D3 preincubation for 72 h. Preincubation of ZFL at 200 pM 1,25(OH)2D3 for 72 h downgraded keap1 and ptgs2 gene expression, increased nrf2, ho-1, fth1, gpx4a,b expression, and lowered the expression of the nf-κb p65,il-6,il-1β gene, thus reducing the expression of hamp1. The above results indicate that different incubation patterns of 1,25(OH)2D3 have protective effects on ferroptosis of ZFL induced by ferroptosis activator RSL3 and 1,25(OH)2D3 can inhibit ferroptosis of ZFL by regulating Keap1–Nrf2–GPx4 and NF-κB–hepcidin axis.

scholarly journals Correlation between Antistress and Hepatoprotective Effects of Schisandra Lignans Was Related with Its Antioxidative Actions in Liver Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Hao-Jie Pu ◽  
Yun-Feng Cao ◽  
Rong-Rong He ◽  
Zhi-Long Zhao ◽  
Jin-Hui Song ◽  
...  
Keyword(s):  
Free Radicals ◽  
Liver Damage ◽  
Restraint Stress ◽  
Liver Cells ◽  
Protective Effects ◽  
Male Mice ◽  
Stress Effects ◽  
Restraint Tube ◽  
Hepatoprotective Effects ◽  
The Relationship

The present study was conducted to investigate the relationship between the anti-stress and hepato-protective effects of Schisandra Lignans Extract (SLE) on stress-induced liver damage. Seven weeks old male mice were fixed in a restraint tube for 18 h to induce liver damage. SLE was orally administered to animals for 5 days at dosages of 100 and 200 mg/kg/day before exposed to restraint stress. Oral administration of SLE significantly reduced restraint-induced liver damage in experimental animal. SLE was further found to significantly alleviate the provocation of corticosterone in stressed mice. SLE also significantly decreased oxidative damage and increased anti-oxidative capability of liver cells by preventing the over production and accumulation of free radicals. In conclusion, the protective effects of SLE on stress-induced liver damage were confirmed, and the correlation between hepatoprotective and anti-stress effects of schisandra lignans was possible related to its alleviation on the malignant effects of stressors for bio-homeostasis, such as balance of oxidation and reduction in cells.

Protective effects of Brazilian native fruits against reactive oxygen species

Planta Medica ◽  
2014 ◽  
Vol 80 (10) ◽  
Author(s):  
J Infante ◽  
A Massarioli ◽  
PL Rosalen ◽  
S Alencar
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Protective Effects

HPV VACCINE AND CERVICAL CANCER

2011 ◽  
pp. 108-115
Author(s):  
Vu Quoc Huy Nguyen
Keyword(s):  
Cervical Cancer ◽  
Relative Risk ◽  
Hpv Vaccine ◽  
Hpv Vaccination ◽  
Preventive Strategy ◽  
Protective Effects ◽  
Papilloma Virus ◽  
Vaccine Trials ◽  
Close Relationship ◽  
The Relationship

Persistent infection with high-risk Human Papilloma Virus (HPV) has been identified as the causal factor of cervical cancer, with relative risk up to 300-400 folds. This very close relationship leads to the preventive strategy of vaccination against HPV infections and HPV-related lesions. The article describes molecular and immunologic characteristics of HPV, currently available HPV vaccines and its protective effects; the relationship between HPV vaccination and cervical cancer screening, and an introduction to therapeutic HPV vaccine trials.

Oxidative Stress Levels, JAK2V617F Mutational Status and Thrombotic Complications in Patients with Essential Thrombocythemia

2019 ◽  
Vol 70 (8) ◽  
pp. 2822-2825 ◽  
Author(s):  
Cornel Moisa ◽  
Mihnea Alexandru Gaman ◽  
Camelia Cristina Diaconu ◽  
Amelia Maria Gaman
Keyword(s):  
Oxidative Stress ◽  
Essential Thrombocythemia ◽  
Myeloproliferative Neoplasm ◽  
Oxygen Species ◽  
Mutational Status ◽  
Increased Risk ◽  
Stress Levels ◽  
Total Antioxidant ◽  
Thrombotic Complications ◽  
The Relationship

Essential thrombocythemia (ET) is a BCR-ABL1-negative myeloproliferative neoplasm associated with thrombotic and haemorrhagic complications. Reactive oxygen species (ROS) overexpression induces a growth advantage to JAK2V617F-positive clones and, in association with a higher number of immature platelets, leukocytosis, and additional cardiovascular risk factors, leads to an increased risk for thrombotic events. We evaluated oxidative stress by measuring ROS levels and the total antioxidant capacity (TAC) in 62 ET patients and investigated the relationship between oxidative stress, JAK2V617F mutational status and the development of thrombotic events. We found higher oxidative stress levels in JAK2V617F-positive vs. JAK2V617F-negative ET cases with no significant differences between homozygous and heterozygous genotypes. Increased ROS levels and thrombotic events were more frequent in ET patients with old age at diagnosis, higher haematocrit levels or leukocytosis.

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