The Relationship Between Embryotoxicity and Oxidative Stress Produced by Aluminum, Iron, Mercury, and Their Mixture on Cyprinus carpio

2021 ◽  
Vol 232 (9) ◽  
Author(s):  
Selene Cano-Viveros ◽  
Marcela Galar-Martínez ◽  
Eloy Gasca-Pérez ◽  
Sandra García-Medina ◽  
Karina Ruiz-Lara ◽  
...  
2013 ◽  
Vol 96 ◽  
pp. 191-197 ◽  
Author(s):  
Sandra García-Medina ◽  
Judith Angélica Núñez-Betancourt ◽  
Alba Lucero García-Medina ◽  
Marcela Galar-Martínez ◽  
Nadia Neri-Cruz ◽  
...  

2018 ◽  
Vol 36 (11) ◽  
pp. 1205-1210
Author(s):  
Didem Arman ◽  
Secil Ercin ◽  
Sevilay Topcuoğlu ◽  
Ayşem Kaya ◽  
Taner Yavuz ◽  
...  

Objective The present study aimed to assess the global oxidant and antioxidant status in infants born to preeclamptic mothers and their correlation with cardiac functions. Study Design We compared 40 infants born to preeclamptic mothers with 40 premature infants born to normotensive mothers. We assessed the relationship between echocardiographic measurements and total antioxidant capacity (TAC) and total oxidant status (TOS) values. Results In the study group, TAC, TOS, and oxidative stress index (OSI) levels were significantly higher in the cord blood (p = 0.03, 0.04, and 0.039, respectively) than in the control group. We did not observe any correlation between echocardiographic measurements and TAC, TOS, and OSI levels in infants born to preeclamptic mothers. Conclusion Compared with the control group, despite higher TAC levels in infants born to preeclamptic mothers, concurrent elevated OSI levels reveal that the oxidant–antioxidant balance is disturbed in favor of oxidants. Furthermore, the findings of this study suggest that echocardiographic parameters are unaffected by the oxidant status.


2020 ◽  
Vol 98 (4) ◽  
pp. 243-251
Author(s):  
Mutlu Sarikaya ◽  
Nuray Yazihan ◽  
Net Daş Evcimen

Protein kinase C (PKC) and aldose reductase (AR) enzyme activities are increased in diabetes and complications are include retinopathy, nephropathy, and neuropathy. However, the relationship between PKC and AR and the underlying molecular mechanisms is still unclear. We aimed to evaluate the relationship between these two enzymes and clarify the underlying molecular mechanisms by the related signaling molecules. The effects of hyperglycemia and oxidative stress on AR and PKC enzymes and the signaling molecules such as nuclear factor-kappa B (NF-κB), inhibitor kappa B-alpha (IkB-α), total c-Jun, phospho c-Jun, and stress-activated protein kinases (SAPK)/Jun amino-terminal kinases (JNK) were evaluated in human retinal pigment epithelial cells (ARPE-19). AR, PKC protein levels, and related signaling molecules increased with hyperglycemia and oxidative stress. The AR inhibitor sorbinil decreased PKC expression and activity and all signaling molecule protein levels. Increased AR expression during hyperglycemia and oxidative stress was found to be correlated with the increase in PKC expression and activity in both conditions. Decreased expression and activity of PKC and the protein levels of related signaling molecules with the AR inhibitor sorbinil showed that AR enzyme may play a key role in the expression of PKC enzyme and oxidative stress during diabetes.


2018 ◽  
Vol 29 (46) ◽  
pp. 464003 ◽  
Author(s):  
Aasma Noureen ◽  
Farhat Jabeen ◽  
Tanveer A Tabish ◽  
Muhammad Kashif Zahoor ◽  
Muhammad Ali ◽  
...  

Chemosphere ◽  
2021 ◽  
pp. 132462
Author(s):  
Sandra García-Medina ◽  
Marcela Galar-Martínez ◽  
Selene Cano-Viveros ◽  
Karina Ruiz-Lara ◽  
Leobardo Manuel Gómez-Oliván ◽  
...  

2019 ◽  
Vol 8 (9) ◽  
pp. 1385 ◽  
Author(s):  
Burgos-Morón ◽  
Abad-Jiménez ◽  
Marañón ◽  
Iannantuoni ◽  
Escribano-López ◽  
...  

Type 2 diabetes (T2D) is a metabolic disorder characterized by hyperglycemia and insulin resistance in which oxidative stress is thought to be a primary cause. Considering that mitochondria are the main source of ROS, we have set out to provide a general overview on how oxidative stress is generated and related to T2D. Enhanced generation of reactive oxygen species (ROS) and oxidative stress occurs in mitochondria as a consequence of an overload of glucose and oxidative phosphorylation. Endoplasmic reticulum (ER) stress plays an important role in oxidative stress, as it is also a source of ROS. The tight interconnection between both organelles through mitochondrial-associated membranes (MAMs) means that the ROS generated in mitochondria promote ER stress. Therefore, a state of stress and mitochondrial dysfunction are consequences of this vicious cycle. The implication of mitochondria in insulin release and the exposure of pancreatic β-cells to hyperglycemia make them especially susceptible to oxidative stress and mitochondrial dysfunction. In fact, crosstalk between both mechanisms is related with alterations in glucose homeostasis and can lead to the diabetes-associated insulin-resistance status. In the present review, we discuss the current knowledge of the relationship between oxidative stress, mitochondria, ER stress, inflammation, and lipotoxicity in T2D.


2016 ◽  
Vol 38 (4) ◽  
pp. 296-304 ◽  
Author(s):  
Caroline Huth ◽  
Liliane Marcia Mertz-Henning ◽  
Sidnei Jose Lopes ◽  
Luciane Almeri Tabaldi ◽  
Liana Veronica Rossato ◽  
...  

Abstract: This study aimed at evaluating the relationship among lignin content in the seed coat of soybean seeds with tolerance to weathering damage and oxidative stress. Four soybean cultivars (CD 208, CD 215, CD 202 and BRS 184), with lignin contents in the seed coat of 4.2, 2.6, 2.0 and 1.7%, respectively, were used. Seeds were subjected to deterioration by moisture, through artificially simulated rains. Pods of all cultivars were subjected to irrigation by constant sprinkling during 4 hours, and then dried in oven, set at 35 °C, for 37 hours; repeating twice such procedure. After these treatments seeds were subjected to tests and then compared to the control. Tests performed were: germination, accelerated aging and tetrazolium test; thereby quantifying the occurrence of damages by weathering damage. The activity of enzymes superoxide dismutase and guaiacol peroxidase was measured; and the lipid peroxidation was assessed. Soybean cultivars CD 208 and CD 215, with higher lignin content in the seed coat, were less susceptible to weathering damage. Seeds of cultivar CD 208 have also presented lower oxidative stress, when subjected to weathering damage stress.


Ergonomics ◽  
2014 ◽  
Vol 57 (8) ◽  
pp. 1265-1273 ◽  
Author(s):  
Masanori Ohta ◽  
Masaharu Kumashiro ◽  
Yasumasa Eguchi ◽  
Yusaku Morita ◽  
Yoshimasa Konno ◽  
...  

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