Mitigating effects of apigenin on edifenphos-induced oxidative stress, DNA damage and apoptotic cell death in human peripheral blood lymphocytes

2019 ◽  
Vol 127 ◽  
pp. 218-227 ◽  
Author(s):  
Ajaz Ahmad ◽  
Atif Zafar ◽  
Masood Ahmad
Author(s):  
Anita Yadav ◽  
Surbhi Bal ◽  
Neha Verma ◽  
Neeraj K. Aggarwal ◽  
Ranjan Gupta

Arsenic contamination is one of the major health concerns all over the world and associated with various types of cancer and pathological effects. The production of reactive oxygen species (ROS) plays a crucial role in arsenic mediated toxicity. Several studies have shown that population constantly exposed to arsenic have substantial oxidative stress that, in turn, induces DNA damage. In the present work eugenol and anethole were investigated for their protective effect against arsenic mediated oxidative DNA damage in peripheral blood lymphocytes. Comet assay and lipid peroxidation was used as biomarker of genotoxicity and oxidative stress respectively. A dose dependent increase in tail moment and lipid peroxidation was observed when lymphocytes were treated with sodium arsenite. Treatment of arsenic (50?M) along with eugenol (20?M) and anethole (50?M) showed a significant decrease in the tail moment and lipid peroxidation in cultured peripheral blood lymphocytes. The decrease in the tail moment and lipid peroxidation was significantly higher in combined supplementation of eugenol and anethole as compared to individual administration. The results of the present study suggests ameliorative role of eugenol and anethole against arsenic induced genotoxic and oxidative damage in cultured human peripheral blood lymphocytes.


2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
María Elena Calderón-Segura ◽  
Sandra Gómez-Arroyo ◽  
Rafael Villalobos-Pietrini ◽  
Carmen Martínez-Valenzuela ◽  
Yolanda Carbajal-López ◽  
...  

Calypso (thiacloprid), Poncho (clothianidin), Gaucho (imidacloprid), and Jade (imidacloprid) are commercial neonicotinoid insecticides, a new class of agrochemicals in México. However, genotoxic and cytotoxic studies have not been performed. In the present study, human peripheral blood lymphocytes (PBL) were exposedin vitroto different concentrations of the four insecticides. The genotoxic and cytotoxic effects were evaluated using the alkaline comet and trypan blue dye exclusion assays. DNA damage was evaluated using two genotoxicity parameters: tail length and comet frequency. Exposure to9.5×10-6to5.7×10-5 M Jade;2.8×10-4to1.7×10-3 M Gaucho;0.6×10-1to1.4×10-1 M Calypso;1.2×10-1to9.5×10-1 M Poncho for 2 h induced a significant increase DNA damage with a concentration-dependent relationship. Jade was the most genotoxic of the four insecticides studied. Cytotoxicity was observed in cells exposed to18×10-3 M Jade,2.0×10-3 M Gaucho,2.0×10-1 M Calypso, 1.07 M Poncho, and cell death occurred at30×10-3 M Jade,3.3×10-3 M Gaucho,2.8×10-1 M Calypso, and 1.42 M Poncho. This study provides the first report of genotoxic and cytotoxic effects in PBL followingin vitroexposure to commercial neonicotinoid insecticides.


2018 ◽  
Vol 11 (3) ◽  
pp. 181-188
Author(s):  
Erman Salih Istifli ◽  
Rima Çelik ◽  
Mehmet Tahir Hüsunet ◽  
Nesrin Çetinel ◽  
Osman Demirhan ◽  
...  

Abstract Sertraline (SRT) is an antidepressant agent used as a neuronal selective serotonin-reuptake inhibitor (SSRI). SRT blocks serotonin reuptake and increases serotonin stimulation of somatodendritic serotonin 1A receptor (5-HT1AR) and terminal autoreceptors in the brain. In the present study, the genotoxic potential of SRT was evaluated using cytokinesis-block micronucleus (CBMN) cytome assay in peripheral blood lymphocytes of healthy human subjects. DNA cleavage-protective effects of SRT were analyzed on plasmid pBR322. In addition, biochemical parameters of total oxidant status (TOS) and total antioxidant status (TAS) in blood plasma were measured to quantitate oxidative stress. Human peripheral blood lymphocytes were exposed to four different concentrations (1.25, 2.5, 3.75 and 5 µg/mL) of SRT for 24- or 48-h treatment periods. In this study, SRT was not found to induce MN formation either in 24- or 48-h treatment periods. In contrast, SRT concentration-dependently decreased the percentage of MN and MNBN (r=−0.979, p<0.01; r=−0.930, p<0.05, respectively) when it was present for the last 48 hr (48-h treatment) of the culture period. SRT neither demonstrated a cleavage activity on plasmid DNA nor conferred DNA protection against H2O2. The application of various concentrations of SRT significantly increased the TOS and oxidative stress index (OSI) in human peripheral blood lymphocytes for both the 24- and 48-h treatment periods. Morover, the increase in TOS was potent as the positive control MMC at both treatment times. However, SRT did not alter the TAS levels in either 24- or 48-h treatment periods when compared to control. In addition, exposing cells to SRT caused significant decreases in the nuclear division index at 1.25, 2.50 and 3.75 µg/mL in the 24-h and at the highest concentration (5 µg/mL) in the 48-h treatment periods. Our results suggest that SRT may have cytotoxic effect via oxidative stress on cultured human peripheral blood lymphocytes.


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