scholarly journals Oxidative stress levels and oral bacterial milieu in the saliva from pregnant vs. non-pregnant women

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Madhu Wagle ◽  
Purusotam Basnet ◽  
Åse Vartun ◽  
Tordis A. Trovik ◽  
Ganesh Acharya
Keyword(s):  
Oxidative Stress ◽  
Pregnant Women ◽  
Stress Levels

The effects of prenatal oxidative stress levels on infant adiposity development during the first year of life

2014 ◽  
Vol 5 (2) ◽  
pp. 142-151 ◽  
Author(s):  
S. L. Loy ◽  
K. N. S. Sirajudeen ◽  
J. M. Hamid Jan
Keyword(s):  
Oxidative Stress ◽  
Dna Damage ◽  
Pregnant Women ◽  
First Year ◽  
Inverse Association ◽  
Second Trimester ◽  
High Tendency ◽  
Stress Levels ◽  
Z Scores ◽  
First Year Of Life

Although numerous studies have been conducted to examine the causal factors of childhood obesity, the implications of intrauterine oxidative stress on early postnatal adiposity development remain to be elucidated. The Universiti Sains Malaysia Birth Cohort Study aimed to investigate the effects of prenatal oxidative stress levels on the development of infant adiposity during the first year of life. This study was conducted on the healthy pregnant women aged 19–40 years, from April 2010 to December 2012 in Kelantan, Malaysia. Maternal blood samples were drawn in the second trimester to analyse for oxidative stress markers. Infant anthropometric measurements were taken at birth, 2, 6 and 12 months of age. A total of 153 pregnant women and full-term infants were included in the analysis. Statistical test was conducted by using multiple linear regression. Through the infant first year of life, as maternal DNA damage level in the second trimester increased, infant weights at birth (β=−0.122, P<0.001), 2 months (β=−0.120, P=0013), 6 months (β=−0.209, P=0.003) and 12 months of age (β=−0.241, P=0.006) decreased after adjusting for confounders. Similar results were noted when infant body mass index-for-age Z-scores and triceps skinfold-for-age Z-scores were used as the adiposity indicators. In conclusion, the present study shows a consistent inverse association between maternal DNA damage and infant adiposity during the first year of life. These infants with reduced growth and adiposity in early postnatal life may have a high tendency to experience catch-up growth during childhood, which could be strongly associated with later obesity.

The correlation of fetal cardiac function with gestational diabetes mellitus (GDM) and oxidative stress levels

2020 ◽  
Vol 48 (5) ◽  
pp. 471-476
Author(s):  
Phudit Jatavan ◽  
Thitikarn Lerthiranwong ◽  
Rattanaporn Sekararithi ◽  
Thidarat Jaiwongkam ◽  
Sirinart Kumfu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Cardiac Function ◽  
Gestational Diabetes Mellitus ◽  
Pregnant Women ◽  
Fetal Cardiac Function ◽  
Function Impairment ◽  
Stress Levels ◽  
High Level

AbstractBackgroundThe primary objective of this study was to compare the fetal cardiac performance index (Tei index) between the fetuses of gestational diabetes mellitus (GDM) mothers and non-GDM mothers; and the secondary objective was to compare various other parameters of fetal cardiac function as well as maternal oxidative stress levels between the groups of GDM and non-GDM mothers.MethodsA cross-sectional study was conducted on pregnant women at 24–28 weeks of gestation. All of the participants underwent 100 g, 3-h oral glucose tolerance test (OGTT) as a diagnostic test for GDM and were categorized as non-GDM and GDM group. All participants had fetal echocardiography performed for cardiac function, and then maternal blood samples were collected for biomarker measurements.ResultsA total of 80 pregnant women, including 43 in the GDM group and 37 in the non-GDM group, were included in the study. The maternal serum 8-isoprostane (8IsoP), tumor necrosis factor-α (TNF-α) and interleukin (IL)-10 levels were significantly higher in the GDM group than those in the non-GDM group (P: 0.028, P: 0.019 and P: 0.031, respectively). The fetal cardiac function parameters were not significantly different between the two groups. Regardless of the GDM status, the fetuses with high levels of oxidative stress (8Isop ≥1000 pg/mg protein) had a significantly higher rate of impaired shortening fraction (SF) of the left ventricle (P: 0.001).ConclusionGDM is significantly associated with an increase in the oxidative stress process, and a high level of oxidative stress was significantly associated with left ventricular (LV) function impairment. Though a correlation between GDM and fetal cardiac function impairment was not clearly demonstrated in this study, this study suggests that GDM patients with a high level of oxidative stress should be evaluated for fetal cardiac function.

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.

Comparison of Salivary Antioxidants and Oxidative Stress Status in Gestational Diabetes Mellitus and Healthy Pregnant Women

2020 ◽  
Vol 20 ◽  
Author(s):  
Fatemeh Ahmadi-Motamayel ◽  
Shima Fathi ◽  
Mohammad Taghi Goodarzi ◽  
Shiva Borzouei ◽  
Jalal Poorolajal ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Pregnant Women ◽  
Oxidative Stress Markers ◽  
Blood Samples ◽  
Stress Markers ◽  
Total Antioxidant ◽  
Total Oxidative Stress ◽  
And Oxidative Stress

Background: One of the most common complications of pregnant women is gestational diabetes mellitus (GDM). Oxidative stress can play an important role in GDM. Objective: The aim of this study was to evaluate salivary antioxidants and oxidative stress markers in GDM. Method: Twenty pregnant women with GDM and 20 healthy pregnant women with normal blood glucose test participated in this study. Five mL of unstimulated saliva samples were collected. Spectrophotometric assay was carried out for sialochemical analysis. Stata software was used for data analysis. Results: The GDM group exhibited no significant difference in salivary total antioxidant capacity and malondialdehyde compared to the healthy control group. All of antioxidants markers, the uric acid, total antioxidant, peroxidase and catalase, decreased in GDM group that the difference of peroxidase and catalase was statistically significant. All of oxidative stress markers, the salivary malondyaldehid, total oxidative stress and total thiol, increased in GDM group. GDM group exhibited significantly higher salivary total oxidative stress levels. Conclusion: Catalase level was significantly lower and total oxidative stress was significantly higher. These two markers might have significant importance and might exhibit early changes compared to other factors in GDM. . Some of salivary antioxidants might have diagnostic, prognostic or therapeutic implications in GDM. Other studies with large sample size on salivary and blood samples need to be done to confirm this properties and salivary samples using instead of blood samples in GDM biomarkers changes.

scholarly journals Nitric oxide synthase 3 deficiency limits adverse ventricular remodeling after pressure overload in insulin resistance

2011 ◽  
Vol 301 (5) ◽  
pp. H2093-H2101 ◽  
Author(s):  
Baptiste Kurtz ◽  
Helene B. Thibault ◽  
Michael J. Raher ◽  
John R. Popovich ◽  
Sharon Cawley ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Insulin Resistance ◽  
Mitochondrial Respiration ◽  
Pressure Overload ◽  
Lv Remodeling ◽  
Stress Levels ◽  
Nitric Oxide Synthase 3 ◽  
And Function ◽  
Oxide Synthase

Insulin resistance (IR) and systemic hypertension are independently associated with heart failure. We reported previously that nitric oxide synthase 3 (NOS3) has a beneficial effect on left ventricular (LV) remodeling and function after pressure-overload in mice. The aim of our study was to investigate the interaction of IR and NOS3 in pressure-overload-induced LV remodeling and dysfunction. Wild-type (WT) and NOS3-deficient (NOS3−/−) mice were fed either a standard diet (SD) or a high-fat diet (HFD) to induce IR. After 9 days of diet, mice underwent transverse aortic constriction (TAC). LV structure and function were assessed serially using echocardiography. Cardiomyocytes were isolated, and levels of oxidative stress were evaluated using 2′,7′-dichlorodihydrofluorescein diacetate. Cardiac mitochondria were isolated, and mitochondrial respiration and ATP production were measured. TAC induced LV remodeling and dysfunction in all mice. The TAC-induced decrease in LV function was greater in SD-fed NOS3−/− mice than in SD-fed WT mice. In contrast, HFD-fed NOS3−/− developed less LV remodeling and dysfunction and had better survival than did HFD-fed WT mice. Seven days after TAC, oxidative stress levels were lower in cardiomyocytes from HFD-fed NOS3−/− than in those from HFD-fed WT. Nω-nitro-l-arginine methyl ester and mitochondrial inhibitors (rotenone and 2-thenoyltrifluoroacetone) decreased oxidative stress levels in cardiomyocytes from HFD-fed WT mice. Mitochondrial respiration was altered in NOS3−/− mice but did not worsen after HFD and TAC. In contrast with its protective role in SD, NOS3 increases LV adverse remodeling after pressure overload in HFD-fed, insulin resistant mice. Interactions between NOS3 and mitochondria may be responsible for increased oxidative stress levels in HFD-fed WT mice hearts.

Oxidative Stress Levels in Rats Following Exposure to Oxygen at 3 atm for 0–120 min

2007 ◽  
Vol 78 (12) ◽  
pp. 1108-1113 ◽  
Author(s):  
Sükrü Öter ◽  
Turgut Topal ◽  
Serdar Sadir ◽  
Mehmet Özler ◽  
Bülent Uysal ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Stress Levels

Omics reveal different oxidative stress levels induced by nanomaterials in vitro and in vivo

2021 ◽  
Vol 350 ◽  
pp. S125
Author(s):  
I Karkossa ◽  
A. Bannuscher ◽  
B. Hellack ◽  
W. Wohlleben ◽  
J. Laloy ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Stress Levels

scholarly journals Influence of Active Exposure to Tobacco Smoke on Nitric Oxide Status of Pregnant Women

2018 ◽  
Vol 15 (12) ◽  
pp. 2719 ◽  
Author(s):  
Magdalena Chełchowska ◽  
Jadwiga Ambroszkiewicz ◽  
Joanna Gajewska ◽  
Joanna Mazur ◽  
Leszek Lewandowski ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Pregnant Women ◽  
Smoking Status ◽  
Multivariate Regression Analysis ◽  
Smoking During Pregnancy ◽  
Women Subjects ◽  
Total Antioxidant ◽  
Markers Of Oxidative Stress ◽  
Oxide Synthase

Smoking tobacco can impair proper vascular endothelial functioning. This is exhibited through reduced nitric oxide synthesis as well as activity due to accompanying oxidative stress. We examined the relationship between nitric oxide and markers of oxidative stress/antioxidant defense in serum of smoking and non-smoking pregnant women. Subjects included 99 healthy pregnant women, who were tested for nitric oxide (NO), endothelial (eNOS) and inducible (iNOS) nitric oxide synthase, total oxidant capacity (TOC), and total antioxidant capacity (TAC). NO, eNOS, and TAC serum concentrations were significantly lower (p < 0.005), but iNOS (p < 0.05) and TOC (p < 0.001) were higher in smokers than in non-smokers. Multivariate regression analysis showed associations between NO concentration and eNOS, TAC, and smoking status in the whole group of patients. In the model estimated separately for smokers, the highest impact of eNOS (β = 0.375; p = 0.021) and cotinine (β = −0.323; p = 0.037) was indicated for NO concentration. In the model of non-smokers, eNOS (β = 0.291, p = 0.030) and TAC (β = 0.350; p = 0.015) were important for NO level. Smoking during pregnancy could exacerbate oxidative stress, impair the action of nitric oxide synthases, and adversely affect the balance of oxygen and nitrogen metabolism. Relationships between NO concentrations and TAC in the studied women’s blood can confirm the antioxidant nature of nitric oxide.

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