scholarly journals Role of total antioxidant capacity and oxidative stress in fertilization and embryo selection in the IVF cycle

2021 ◽  
Vol 46 (4) ◽  
pp. 1694-1702
Author(s):  
Sevtap SEYFETTİNOĞLU ◽  
Gülnaz ŞAHİN ◽  
Ayşin AKDOĞAN ◽  
Ege Nazan TAVMERGEN GÖKER ◽  
Yasemin AKÇAY ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Embryo Selection ◽  
Total Antioxidant ◽  
And Oxidative Stress

Evaluation of Salivary Antioxidants and Oxidative Stress Markers in Male Smokers

2019 ◽  
Vol 22 (7) ◽  
pp. 496-501
Author(s):  
Fatemeh Ahmadi-Motamayel ◽  
Parisa Falsafi ◽  
Hamidreza Abolsamadi ◽  
Mohammad T. Goodarzi ◽  
Jalal Poorolajal
Keyword(s):  
Oxidative Stress ◽  
Uric Acid ◽  
Free Radicals ◽  
Antioxidant Capacity ◽  
Cigarette Smoke ◽  
Total Antioxidant Capacity ◽  
The Body ◽  
Total Antioxidant ◽  
The Mean ◽  
And Oxidative Stress

Background: Cigarette smoke free radicals can cause cellular damage and different diseases. All the body fluids have antioxidants which protect against free radicals. Objective: The aim of this study was to evaluate salivary total antioxidant capacity and peroxidase, uric acid and malondialdehyde levels in smokers and a nonsmoking control group. Methods: Unstimulated saliva was collected from 510 males. A total of 259 subjects were current smokers and 251 were non-smokers. The levels of salivary total antioxidant capacity, uric acid, peroxidase and malondialdehyde were measured using standard procedures. Data were analyzed with t test and ANOVA. Results: The smokers were younger and dental hygiene index was higher than healthy nonsmoking controls. The mean total antioxidant capacity in smokers and nonsmokers was 0.13±0.07 and 0.21±011, respectively (P=0.001). Smokers had significantly lower peroxidase and uric acid levels than healthy controls. In addition, the mean malondialdehyde levels in the smokers and nonsmokers were 4.55 ±2.61 and 2.79 ±2.21, respectively (P=0.001). Conclusion: Cigarette smoke produces free radical and oxidative stress, causing many side effects. Salivary antioxidant levels decreased and malondialdehyde levels increased in smokers, indicating the high oxidative stress among smokers compared to nonsmokers. Cigarette smoke had deleterious effects on main salivary antioxidants levels.

scholarly journals Total antioxidant capacity and oxidative stress after a 10-week dietary intervention program in obese children

2013 ◽  
Vol 173 (5) ◽  
pp. 609-616 ◽  
Author(s):  
T. Rendo-Urteaga ◽  
B. Puchau ◽  
M. Chueca ◽  
M. Oyarzabal ◽  
M. C. Azcona-Sanjulián ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Intervention Program ◽  
Dietary Intervention ◽  
Obese Children ◽  
Total Antioxidant ◽  
And Oxidative Stress

Influence of uric acid and γ-glutamyltransferase on total antioxidant capacity and oxidative stress in patients with metabolic syndrome

Nutrition ◽  
2008 ◽  
Vol 24 (7-8) ◽  
pp. 675-681 ◽  
Author(s):  
Andréa Name Colado Simão ◽  
Jane Bandeira Dichi ◽  
Décio Sabbatini Barbosa ◽  
Rubens Cecchini ◽  
Isaias Dichi
Keyword(s):  
Oxidative Stress ◽  
Metabolic Syndrome ◽  
Uric Acid ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Total Antioxidant ◽  
And Oxidative Stress

scholarly journals Evaluation of oxidative stress in sheep infected with Psoroptes ovis using total antioxidant capacity, total oxidant status, and malondialdehyde level

2017 ◽  
Vol 61 (2) ◽  
pp. 197-201 ◽  
Author(s):  
Mustafa Sinan Aktas ◽  
Fatih Mehmet Kandemir ◽  
Akin Kirbas ◽  
Basak Hanedan ◽  
Mehmet Akif Aydin
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Stress Index ◽  
Total Oxidant Status ◽  
Psoroptes Ovis ◽  
Oxidative Stress Index ◽  
Total Antioxidant ◽  
Oxidant Status ◽  
And Oxidative Stress

AbstractIntroduction:The study aimed at evaluating oxidative stress using malondialdehyde (MDA), total antioxidant capacity (TAC), total oxidant status (TOS), and oxidative stress index (OSI) markers in sheep naturally infected withPsoroptes ovis(Acari).Material and Methods:The study was performed on 40 sheep divided into two equal groups: a healthy group (group I) and a group naturally infected withPsoroptes ovis(group II). The sera were obtained by centrifuging blood samples collected from the vena jugularis and serum MDA level changes in the samples were measured spectrophotometrically. Commercially available test kits were used for the measurement of TAC and TOS levels. The percentage ratio of TOS level to TAC level was accepted as OSI.Results:The serum malondialdehyde, total oxidant status levels, and oxidative stress index increased significantly (P < 0.01) in group II, while the serum total antioxidant capacity levels decreased significantly (P < 0.01) in this group. Negative correlations between total antioxidant capacity and total oxidant status and total antioxidant capacity and malondialdehyde, and a positive correlation between total oxidant status and malondialdehyde were found in infected sheep.Conclusion:The obtained results indicated the relationship between oxidant/antioxidant imbalance andPsoroptes ovisinfection in sheep. Their MDA, TAC, TOS, and OSI markers may be used to determine the oxidative stress in natural infections withPsoroptes ovis.

scholarly journals The Relationship between Haptoglobin Polymorphism and Oxidative Stress in Hemodialysis Patients

2013 ◽  
Vol 32 (3) ◽  
pp. 220-226 ◽  
Author(s):  
Mawieh Hamad ◽  
Samir Awadallah ◽  
Hamzah Nasr
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Hemodialysis Patients ◽  
Haptoglobin Phenotype ◽  
Total Antioxidant ◽  
Ferroxidase Activity ◽  
The Relationship ◽  
And Oxidative Stress ◽  
Haptoglobin Polymorphism

Summary Background: The relationship between haptoglobin polymorphism and oxidative stress in hemodialysis patients is not fully understood. In this study, total antioxidant capacity and ce ru - loplasmin ferroxidase activity were evaluated in relation to haptoglobin phenotype distribution in hemodialysis patients. Methods: Serum samples collected from 161 patients and 84 healthy controls were haptoglobin-typed by electrophoresis. Ceruloplasmin ferroxidase activity and total antioxidant capacity were assayed using colorimetric methods. Results: Irrespective of the haptoglobin phenotype, patients exhibited significantly lower total antioxidant capacity (1.42± 0.29 vs. 1.55±0.28 mmol/L, P=0.002) and higher ferroxidase activity than controls. Frequency of Hp1-1 and Hp2-1 in patients was 15.5% and 36% as compared with 9.5% and 41.7% in controls. While ferroxidase activity was lower in Hp2-2 patients than in controls (142±61 vs. 179±47 U/L, P=0.002), it was higher in Hp2-1 (173±56 U/L) and Hp1-1 (170±54 U/L) patients than in controls (141±43 and 99±30 U/L respectively) (P=0.002 and 0.009). Ferroxidase activity in Hp2-2 patients was significantly lower than that of Hp2-1 or Hp1-1 patients (P=0.004 and 0.034). Total antioxidant capacity was significantly lower only in Hp2-2 patients (1.44±0.25) compared to that in Hp2-2 controls (1.65±0.22) (P=0.000). Conclusions:These findings suggest that haptoglobin polymorphism can differentially impact oxidative stress levels in hemodialysis patients.

Protection by sildenafil and theophylline of lead acetate-induced oxidative stress in rat submandibular gland and saliva

2003 ◽  
Vol 22 (11) ◽  
pp. 587-592 ◽  
Author(s):  
Mohammad Abdollahi ◽  
Fatemeh Fooladian ◽  
Bita Emami ◽  
Khatereh Zafari ◽  
Arezou Bahreini-Moghadam
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Lead Acetate ◽  
Lead Toxicity ◽  
Thiol Groups ◽  
Total Antioxidant ◽  
Camp And Cgmp

The role of oxidative stress in lead toxicity has been proposed in many organs, however, no study has been performed in the salivary glands, which are important parts of the gastrointestinal tract with a high implication in health of the whole body. Recently, it has been proposed that increasing the levels of cGMP and cAMP in the cells may protect from the neurotoxicity of lead. The objective of this study was to determine the ability of lead acetate to produce oxidative stress in rat submandibular as the main salivary gland of the body and to study the role of pretreatment by specific phosphodiesterase inhibitors in the prevention of oxidative stress. Lead acetate (100 mg/kg), alone or in combination with theophylline (25 mg/kg) and sildenafil (5 mg/kg), was administered intraperitoneally to rats. After 2 hours and under general anaesthesia, the submandibular gland ducts were cannulated intraorally using microcannula, and pure saliva was collected for 30 min using pilocarpine (8 mg/kg) as a secretagogue. The submandibular glands were then isolated free under surgery. Oxidative stress in the gland and pure saliva were evaluated measuring lipid peroxidation (thiobarbituric acid reactive substances assay), total thiol groups content and total antioxidant capacity (the ferric reducing ability assay). Results showed significant oxidative stress in the gland and secretions as indicated by increased lipid peroxidation, decreased total antioxidant capacity and thiol group levels. The use of cAMP and cGMP phosodiesterase inhibitors, theophylline and sildenafil, prevented leadinduced increased lipid peroxidation and also protected from decreased thiol groups content and total antioxidant power of the gland and secretions. The same trend of effects was observed in gland and saliva. It is concluded that lead toxicity is mediated through oxidative stress in salivary glands, while increasing intracellular cAMP and cGMP levels may prevent lead-induced oxidative stress.

scholarly journals Role of nitro-oxidative stress in the pathogenesis of experimental rat periodontitis

2016 ◽  
Vol 89 (1) ◽  
pp. 150-159 ◽  
Author(s):  
Bianca Adina Boșca ◽  
Viorel Miclăuș ◽  
Aranka Ilea ◽  
Radu Septimiu Câmpian ◽  
Vasile Rus ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Oxidative Status ◽  
Diagnostic Tools ◽  
Continuous Increase ◽  
Periodontal Tissues ◽  
Total Antioxidant ◽  
Total Oxidative Status ◽  
And Oxidative Stress

Background and aims. Periodontitis is a common chronic adult condition that implicates oxidative damage to gingival tissue, periodontal ligament and alveolar bone. This study aimed at  assessing the association between the nitro-oxidative stress and the periodontal tissues destructions in experimental rat periodontitis.Methods. Periodontitis was induced in 15 male albino rats by repetitive lesions to the gingiva adjacent to the inferior incisors, performed daily, for 16 days. On D1, D3, D6, D8, and D16 the onset and evolution of periodontitis were monitored by clinical and histopathological examinations; blood was collected and serum nitro-oxidative stress was evaluated through total nitrites and nitrates, total oxidative status, total antioxidant capacity, and oxidative stress index.Results. The results demonstrated that there was a graded and continuous increase in serum levels of total nitrites and nitrates, total oxidative status and oxidative stress index, which was consistent with the severity of periodontal destructions during periodontitis progression. However, total antioxidant capacity was not significantly influenced by the disease progression.Conclusions. In experimental rat periodontitis, the systemic nitro-oxidative stress was associated with the severity of periodontal destructions assessed clinically and histopathologically. Therefore, systemic nitro-oxidative stress parameters might be used as diagnostic tools in periodontitis.

Sign in / Sign up

Export Citation Format

Share Document