Induction of oxidative stress and acetylcholinesterase inhibition in organophosphorous pesticide manufacturing workers

2002 ◽  
Vol 21 (4) ◽  
pp. 179-182 ◽  
Author(s):  
A Ranjbar ◽  
P Pasalar ◽  
M Abdollahi
Keyword(s):  
Oxidative Stress ◽  
Ache Activity ◽  
Thiobarbituric Acid ◽  
Thiol Group ◽  
Acetylcholinesterase Inhibition ◽  
Gamma Glutamyl Transpeptidase ◽  
Stress Markers ◽  
Reducing Ability ◽  
Regular Manner ◽  
Erythrocyte Ache

Oxidative stress status and acetylcholinesterase (AChE) activity were studied in blood samples obtained from 45 organophosphorous (OP)-formulating pesticide workers with a minimum work history of 1 year in the age range of 23–55. Controls were age-matched workers of a food-making factory. They were evaluated for oxidative stress markers, including thiobarbituric acid-reactive substances (TBARS) indicator of lipid peroxidation (LPO), ferric-reducing ability of plasma (FRAP) indicator of total anti-oxidant capacity, total thiol (SH) groups and gamma glutamyl transpeptidase (GGT) levels in blood and AChE activity in erythrocytes. The results show marked inhibition of AChE activity, increased TBARS, decreased FRAP and decreased thiol group levels in workers. The reduction in activity of AChE correlated well with increased TBARS and decreased FRAP in OP formulators. It is concluded that OP-formulating workers are exposed to more oxidative stress. The measurement of erythrocyte AChE activity in pesticide workers who formulate OPs can be a good monitoring factor and is recommended to be performed in a regular manner.

scholarly journals PSI-36 Effect of short-chain fructooligosaccharides on Trolox equivalent antioxidant capacity and thiobarbituric acid reactive substances in mature and senior stock-type horses

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 254-255
Author(s):  
Emili McClure ◽  
Courtney P Heaton ◽  
Dishnu Sajeev ◽  
Thu Dinh
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Random Effect ◽  
Thiobarbituric Acid ◽  
Short Chain ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Thiobarbituric Acid Reactive Substances ◽  
Stress Markers ◽  
Trolox Equivalent ◽  
Stock Type

Abstract Oxidative stress (OS) causes health complications through the destruction of cellular components as individuals age. Reactive oxygen species are used to measure OS through Trolox equivalent antioxidant capacity (TEAC) and thiobarbituric acid reactive substances (TBARS). Other prebiotics have been used to reduce OS markers in numerous species; however, the effect of short-chain fructooligosaccharides (scFOS) on OS has not been studied in the horse. Ten healthy stock-type horses were blocked by age into 2 groups: mature (MA; n = 5; 7.0 ± 0.87 yr) and senior (SR; n = 5; 22.6 ± 1.1 yr) to analyze effects of scFOS on TEAC and TBARS. Horses were randomly assigned to 1 of 3 diets for 25 d before transition to another diet. Diets were bermudagrass hay offered at 1.5% BW/d hay as-fed, hay with a ration balancer (CON), or hay with a ration balancer and scFOS added at a rate of 2.5 g/kg (PRE). Prior to a total fecal collection for an alternate study, horses were fasted overnight for 8 h with blood samples taken immediately prior to feeding (0), 30, and 60 min postprandial. Oxidative stress markers were analyzed for the 2 ration balancer diets. Statistical analysis was performed with SAS using the MIXED procedure with horse within diet as a random effect with significance of P ≤ 0.05. Trolox equivalent antioxidant capacity was unaffected by diet (P = 0.827) or age (P = 0.347). Time (P = 0.006) was significant for TBARS which increased postprandial regardless of treatment or age. Consistent with other species, higher levels of OS was found in SR compared to MA regardless of time or diet (P = 0.037; 4.491 µM vs. 3.412 µM TBARS, respectively). These results indicate that scFOS do not seem to be effective in reducing OS in SR and MA horses.

scholarly journals Effect of percutaneous transthoracic lung biopsy on oxidative metabolism in sheep

2012 ◽  
Vol 83 (1) ◽  
Author(s):  
Andreza A. Silva ◽  
Danilo O.L. Ferreira ◽  
Bianca P. Santarosa ◽  
Adriano Dias ◽  
Débora C. Damasceno ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Oxidative Metabolism ◽  
Lung Biopsy ◽  
Thiobarbituric Acid ◽  
Oxidative Stress Markers ◽  
Thiobarbituric Acid Reactive Substances ◽  
Total Glutathione ◽  
Blood Samples ◽  
Stress Markers ◽  
Healthy Sheep

This study aimed to assess the effect of percutaneous transthoracic lung biopsy on the oxidative metabolism of sheep by measuring the oxidative stress markers of superoxide dismutase (SOD), total glutathione (GSH-t), peroxidase (GSH-Px) and thiobarbituric acid reactive substances (TBARS) in the red cells of these animals. Blood samples were collected from 20 clinically healthy sheep prior to, and 30 min after, percutaneous transthoracic lung biopsy. After biopsy, there was a significant decrease (p < 0.05) in SOD and GSH-Px activity, with no significant change (p ≥ 0.05) in GSH-t and TBARS concentrations. These results showed that percutaneous transthoracic lung biopsy did not significantly affect the oxidative metabolism of sheep 30 min after the procedure, which may be used widely in this species without causing serious tissue damage.  

scholarly journals Association between Vitamin D Supplements, Oxidative Stress Biomarkers, and Hyperbaric Therapy in Patients with Sudden Sensorineural Hearing Loss

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jarosław Paprocki ◽  
Paweł Sutkowy ◽  
Jacek Piechocki ◽  
Alina Woźniak
Keyword(s):  
Oxidative Stress ◽  
Vitamin D ◽  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Thiobarbituric Acid ◽  
Vitamin D Supplementation ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Oxidative Stress Biomarkers ◽  
Stress Markers

The effect of vitamin D supplementation to patients with sudden sensorineural hearing loss (SSNHL), treated with hyperbaric oxygen (HBO) therapy, on the markers of the oxidant-antioxidant equilibrium was investigated. Patients were divided into two groups: those who did and did not receive vitamin D (cholecalciferol at 4000 IU/24 h). Concentrations of the following compounds, thiobarbituric acid reactive substances (TBARS), malondialdehyde (MDA), conjugated dienes (CD) in plasma and erythrocytes and activities of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx) in erythrocytes, were determined. Haemoglobin (HGB) and haematocrit (HCT) were measured. Blood for analyses was collected from the basilic vein at three time points: before the first HBO procedure, up to 5 min after the first procedure, and after 14 procedures. No statistically significant differences in parameters tested were found between patients who did and did not receive vitamin D. In patients without supplementation, an increase of 53.2% ( P ≤ 0.05 ) in erythrocyte TBARS was observed after the first HBO treatment. In patients receiving vitamin D, a reduction of 27.6% ( P ≤ 0.05 ) was observed in erythrocyte MDA after 14 HBO treatments vs. that after the first treatment. In both groups, a decrease of 33.3% in plasma CD was observed after 14 treatments vs. that after the first treatment ( P ≤ 0.05 and P ≤ 0.01 , respectively). No statistically significant changes were observed in the erythrocyte SOD, GPx, and CAT activities and in HCT. A reduction of HGB concentration of 10.9% ( P ≤ 0.05 ) was demonstrated in nonsupplemented patients after 14 treatments compared with baseline. The results confirm that the effect of HBO therapy on oxidative stress markers is inconclusive and complex. Repeated HBO procedures can induce adaptive changes which protect against disruption of the oxidant-antioxidant equilibrium. It is possible that vitamin D supplementation inhibits the process of lipid peroxidation in erythrocytes.

scholarly journals The Role of Oxidative Stress in Decreased Acetylcholinesterase Activity at the Neuromuscular Junction of the Diaphragm during Sepsis

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Hua Liu ◽  
Jin Wu ◽  
Jun-yan Yao ◽  
Hong Wang ◽  
Shi-tong Li
Keyword(s):  
Oxidative Stress ◽  
Neuromuscular Junction ◽  
Ache Activity ◽  
Thiobarbituric Acid ◽  
Acetylcholinesterase Activity ◽  
Protein Carbonyls ◽  
Low Grade ◽  
Caecal Ligation And Puncture ◽  
Septic Group

Our recent study demonstrated that acetylcholinesterase (AChE) activity at the neuromuscular junction (NMJ) of the diaphragm decreased during sepsis. However, the mechanisms were not clearly identified. In this study, we aimed to investigate whether the decreased AChE activity was related to oxidative stress by observing AChE activity in different grades of sepsis induced by caecal ligation and puncture (CLP). At 24 h after surgery, an assay of thiobarbituric acid reactive species (TBARS) and protein carbonyls, as well as the myeloperoxidase (MPO), superoxide dismutase (SOD), and catalase (CAT) activity, was conducted. AChE activity was measured by biochemical and histological detection. AChE and CAT activity in the diaphragm decreased, while the contents of TBARS and protein carbonyls, the activity of MPO and SOD, and the SOD/CAT ratios increased. The above changes were much more significant in the mid-grade septic group than in the low-grade septic group. The colour of the AChE activity staining at the NMJ gradually lightened from the sham surgery group to the mid-grade septic group. AChE activity was significantly negatively correlated with the levels of TBARS and protein carbonyls. We consider that oxidative stress might be responsible for decreased AChE activity in the diaphragms of rats induced with sepsis.

scholarly journals Evaluation of Oxidative Stress Parameters in Healthy Saddle Horses in Relation to Housing Conditions, Presence of Stereotypies, Age, Sex and Breed

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1670
Author(s):  
Luca Molinari ◽  
Giuseppina Basini ◽  
Roberto Ramoni ◽  
Simona Bussolati ◽  
Raffaella Aldigeri ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Statistical Significance ◽  
Well Being ◽  
Redox Status ◽  
Housing Conditions ◽  
Serum Samples ◽  
Partial Contact ◽  
Stress Markers ◽  
Reducing Ability ◽  
Status Differences

Oxidative stress plays an important role in the development of many horse diseases and it has been shown that housing has important implications for the psychophysical well-being of horses. The aim of this study is to determine if there are any differences between the redox status in horses in relation to housing conditions. The four housing conditions analyzed were: single box, without external access and without contact (Cat A), single box with external access and possibility of partial contact (Cat B), group housing with box and large paddock (Cat C), pasture with more than 7 horses and the possibility of green forage for the whole year (Cat D). A group of 117 healthy horses were selected in several private stables in Northern Italy. All subjects treated with any type of drug were excluded. At the end of the enrollment, the 117 selected horses were divided into the four housing categories. Stereotypies were highest in the group of horses in single box, without external access and without contact (Cat A). Oxidative stress was evaluated by testing plasma or serum samples for the following parameters: superoxide anion (WST), nitric oxide (NO), reactive oxygen species (d-ROMs), ferric reducing ability of plasma (FRAP), and the activity of superoxide dismutase (SOD). Simultaneously with the blood sampling, the owners completed a questionnaire with all the management aspects of the horse (signaling, feeding, equestrian activity, vaccinations, foot management etc.). The statistical evaluation was carried out based on the categories previously described, on the presence and absence of stereotypies and on some signaling data obtained from the questionnaire. There were no significant differences in the parameters analyzed between the categories. No significant redox status differences were detected based on the presence or absence of stereotypies. Interestingly, when the age was introduced as selection (<14 and >14 years old) parameter inside the categories, statistical significance was observed for some of the stress markers considered. Finally, independently of the housing conditions, the horses of the most two represented breeds exhibited different values of FRAP. All these aspects are commented in the discussion.

scholarly journals The protective effect of vildagliptin in chronic experimental cyclosporine A-induced hepatotoxicity

2016 ◽  
Vol 94 (3) ◽  
pp. 251-256 ◽  
Author(s):  
Nagla A. El-Sherbeeny ◽  
Manar A. Nader
Keyword(s):  
Oxidative Stress ◽  
Nuclear Factor Kappa B ◽  
Thiobarbituric Acid ◽  
Serum Levels ◽  
Nuclear Extract ◽  
Thiobarbituric Acid Reactive Substance ◽  
Histopathological Changes ◽  
Dipeptidyl Peptidase 4 ◽  
Stress Markers ◽  
Apoptosis And Inflammation

The study examined the effect of dipeptidyl peptidase-4 (DPP-4) inhibitor, vildagliptin, in cyclosporine (CsA)-induced hepatotoxicity. Rats were divided into 4 groups treated for 28 days: control (vehicle), vildagliptin (10 mg/kg, orally), CsA (20 mg/kg, s.c.), and CsA-vildagliptin group. Liver function was assessed by measuring serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma glutamyltransferase (γGT), lactate dehydrogenase (LDH), and albumin, and histopathological changes of liver were examined. Oxidative stress markers were evaluated. Assessment of nuclear factor-kappa B (NF-κB) activity in hepatic nuclear extract, serum DPP-4, and expression of Bax and Bcl2 were also done. CsA-induced hepatotoxicity was evidenced by increase in serum levels of AST, ALT, and γGT; a decrease in serum albumin; and a significant alteration in hepatic architecture. Also, significant increase in thiobarbituric acid reactive substance (TBARS) and decrease in superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione (GSH) levels, increased expression Bax proteins with deceased expression of Bcl2, and increased hepatic activity of NF-κB and serum DPP-4 level were observed upon CsA treatment. Vildagliptin significantly improved all altered parameters induced by CsA administration. Vildagliptin has the potential to protect the liver against CsA-induced hepatotoxicity by reducing oxidative stress, DPP-4 activity, apoptosis, and inflammation.

scholarly journals Markers of Oxidative Stress and Antioxidant Status in the Plasma, Urine and Saliva of Healthy Mice

2018 ◽  
pp. 921-934 ◽  
Author(s):  
M. GYURÁSZOVÁ ◽  
A. KOVALČÍKOVÁ ◽  
K. JANŠÁKOVÁ ◽  
K. ŠEBEKOVÁ ◽  
P. CELEC ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Thiobarbituric Acid ◽  
Oxidative Status ◽  
Blood Collection ◽  
Reference Ranges ◽  
Oxidative Stress Markers ◽  
Male Adult ◽  
Antioxidant Power ◽  
Stress Markers ◽  
Status Assessment

Oxidative stress markers are usually measured in plasma, a stable environment for biomarkers. Blood collection is invasive, but the use of alternative biofluids is limited, due to high variability. In this study, we aimed to establish reference values for oxidative stress markers in plasma, urine and saliva of adult, healthy mice and to identify some sources of variability. Samples were obtained from 41 female and 37 male adult, healthy mice of the CD-1 strain, aged 95-480 days, weighing 21-55 grams. Reference ranges of TBARS (thiobarbituric acid reactive substances), AOPP (advanced oxidation protein products), fructosamine, GSH/GSSG (reduced and oxidized glutathione) ratio, TAC (total antioxidant capacity), and FRAP (ferric reducing antioxidant power) were measured in plasma and urine, and TBARS, GSH/GSSG ratio, TAC and FRAP in saliva, using standard spectrophotometric and fluorometric methods. Salivary GSH/GSSG and urinary AOPP were higher in females. Urinary fructosamine, GSH/GSSG and FRAP were higher in males. Urinary TAC and FRAP negatively correlated with age, and urinary GSH/GSSG positively correlated with weight. We determined that urine and saliva can be obtained non-invasively from mice, in sufficient amounts for reliable oxidative status assessment. Further studies are needed to uncover whether these biofluids reflect systemic oxidative status in diseases.

Protective role of garlic against malathion induced oxidative stress in male albino rats

2016 ◽  
Vol 50 (3) ◽  
Author(s):  
Gamila A. M. Kotb ◽  
Farag A.A. Gh ◽  
Kholoud S Ramadan ◽  
Hoda E.A. Farid
Keyword(s):  
Oxidative Stress ◽  
Ache Activity ◽  
Protein Pattern ◽  
Experimental Period ◽  
Protective Role ◽  
Oxidative Stress Marker ◽  
Albino Rats ◽  
Stress Markers ◽  
Therapeutic Properties

The garlic has been widely used as medicinal plant for its therapeutic properties This study was aimed to investigate the antioxidant role of garlic (G) against oxidative stress induced by malathion (M) in male albino rats. After experimental period (28 days), the study investigated some biochemical parameters and oxidative stress markers in plasma rats. The results revealed that, malathion induced significant increase in plasma Tri-iodothyronine (T<sub>3</sub>), Thyroxin (T<sub>4</sub>), glucose values and malondialdehyde (MDA) as oxidative stress marker was noticed. However, significant decrease was recorded in cholesterol, total protein (T. Protein) contents and in defense system biomarker total SH- protein. Acetylcholinesterase (AChE) activity was inhibited by malathion treatment and cause alteration in non-specific esterase and protein pattern. Finally, these results concluded that garlic has significant protection against malathion intoxication demonstrated inhibition in acetyl cholinesterase (AChE) activity and reduced in cholesterol, T. protein and total SH- protein. Further studies are necessary to investigate the significant effect of garlic on thyroid gland, brain and neurotransmitters.

scholarly journals Effects of Open versus Laparoscopic Nephrectomy Techniques on Oxidative Stress Markers in Patients with Renal Cell Carcinoma

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Celestyna Mila-Kierzenkowska ◽  
Alina Woźniak ◽  
Tomasz Drewa ◽  
Bartosz Woźniak ◽  
Michał Szpinda ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Open Surgery ◽  
Acute Phase Proteins ◽  
Thiobarbituric Acid ◽  
Laparoscopic Nephrectomy ◽  
Stress Markers ◽  
Open Versus

The aim of the study was to determine the concentration of lipid peroxidation products, the activity of selected antioxidant and lysosomal enzymes, and protease inhibitor in patients with renal cell carcinoma who underwent radical nephrectomy. The studied group included 44 patients: 21 of them underwent open surgery, while 23 underwent laparoscopy. Blood samples were collected three times: before treatment and 12 hours and five days after nephrectomy. In blood of participants, the concentration of thiobarbituric acid reactive substances (TBARS), the activity of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx), and the activity of acid phosphatase (AcP), arylsulfatase (ASA), cathepsin D (CTSD), andα1-antitrypsin (AAT) were assayed. No statistically significant differences in investigated parameters were found between studied groups. Moreover, TBARS concentration and CAT, SOD, and GPx activity were not altered in the course of both types of surgery. Five days after both open and laparoscopic nephrectomy techniques, AAT activity was higher than its activity 12 hours after the procedure. The obtained results suggest that laparoscopy may be used for nephrectomy as effectively as open surgery without creating greater oxidative stress. Reduced period of convalescence at patients treated with laparoscopy may be due to less severe response of acute-phase proteins.

scholarly journals PSXI-14 Supplementation with a blend containing Baccharis dracunculifolia and Tamarindus indica improve the oxidative state of steers in finishing phase

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 400-401
Author(s):  
Vicente A Diaz Avila ◽  
Edineia Bonin ◽  
Venício M Carvalho ◽  
Lucas Stafuza Moreira ◽  
Jurandir Fernando Comar ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Thiobarbituric Acid ◽  
Protein Carbonyl ◽  
Oxidative Status ◽  
Carbonyl Groups ◽  
Tamarindus Indica ◽  
Plasma Parameters ◽  
Protein Carbonyl Groups ◽  
Reducing Ability ◽  
Oxidative State

Abstract Tissue oxidative stress has been associated with low productivity of beef cattle. Supplementation of animals with natural antioxidants added to the diet may be an alternative to improve the tissue oxidative status and the productivity of steers at finishing phase. The present study evaluated whether the addition to the diet of a blend (Mix) containing Baccharis dracunculifolia (40%), Tamarindus indica seed (40%), cashew nutshell oil (10%) and clove oil (10%) modifies the oxidative state in the plasma and liver of steers (Angus x Zebu) in finishing phase. Forty animals were randomly distributed into four groups (ten animal per group), which received Mix respectively at the daily dose of 0.0, 2.0, 4.0 and 6.0 g per animal during 84 days. Blood and liver were taken at slaughter of the animals. Blood samples were also taken before starting the supplementation and served as control. The ferric reducing ability of plasma (FRAP), thiol groups and protein carbonyl groups were measured as plasma parameters of oxidative stress. The levels of thiobarbituric acid reactive substances (TBARS), protein carbonyl groups, reactive oxygen species (ROS), glutathione and the activity of catalase and superoxide dismutase (SOD) were measured as hepatic parameter of oxidative stress. Plasma levels of protein carbonyl groups were 30% lower in the animals supplemented with 4.0 and 6.0 g Mix and FRAP was 20% higher in the animals supplemented with 6.0 g Mix (P &lt; 0.05; compared to the 0.0 g). Hepatic levels of TBARS were 38% lower in animals supplemented with 6.0 g Mix (P &lt; 0.05). The other parameters were not modified. In conclusion, the supplementation of steers with Mix improved the systemic oxidative status and may be a complementary alternative to the diet of these animals in the termination phase.

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