scholarly journals Sex-Specific Association of Serum Anti-Oxidative Capacity and Leukocyte Telomere Length

Antioxidants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1908
Author(s):  
Eva Hassler ◽  
Gunter Almer ◽  
Gernot Reishofer ◽  
Gunther Marsche ◽  
Harald Mangge ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Telomere Length ◽  
Oxidative Capacity ◽  
Telomerase Activity ◽  
Cross Sectional Study ◽  
Total Serum ◽  
Sectional Study ◽  
Cross Sectional ◽  
Lipid Panel ◽  
Total Antioxidant

Telomeres are a crucial factor in the preservation of genomic integrity, and an elevated risk for diseases such as cancer and cardiovascular events is related to shortened telomeres. However, telomere deterioration could be caused by factors such as chronic oxidative stress and inflammation, which are promoted by an imbalance among reactive oxygen species (ROS) and antioxidants. In this cross-sectional study, we investigated the relationship between telomeres and oxidative stress. The serum leucocyte telomer length (LTL), serum total antioxidant capacity (TAC) and the total serum lipid panel of 180 healthy athletic volunteers (90 males, 90 females) were measured Additionally, a questionnaire about sports behaviour and the type of training was completed. We observed a positive significant relation between serum LTL and TAC in the male group (cc = 3.4/p = 0.001) but not in females. There was no statistically significant correlation between age and physical activity and LTL in both groups. This is the first cross sectional study demonstrating an association between total serum TAC and LTL in healthy males, but interestingly, not in the females. Nevertheless, these results should be interpreted as preliminary, and further studies in independent cohorts are needed to investigate the sex-specific effects of oxidative stress on telomere length and telomerase activity.

scholarly journals Leukocyte Telomere Length in Relation to 17 Biomarkers of Cardiovascular Disease Risk: A Cross-Sectional Study of US Adults

PLoS Medicine ◽  
2016 ◽  
Vol 13 (11) ◽  
pp. e1002188 ◽  
Author(s):  
David H. Rehkopf ◽  
Belinda L. Needham ◽  
Jue Lin ◽  
Elizabeth H. Blackburn ◽  
Ami R. Zota ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Telomere Length ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Cross Sectional Study ◽  
Leukocyte Telomere Length ◽  
Sectional Study ◽  
Cross Sectional

Polycyclic aromatic hydrocarbons exposures and telomere length: A cross-sectional study on preschool children

2021 ◽  
Vol 195 ◽  
pp. 110757
Author(s):  
Abolfazl Adli ◽  
Seyed Mostafa Hosseini ◽  
Moslem Lari Najafi ◽  
Maryam Behmanesh ◽  
Elahe Ghezi ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Preschool Children ◽  
Telomere Length ◽  
Aromatic Hydrocarbons ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Polycyclic Aromatic

scholarly journals Malondialdehyde Levels in Preeclampsia before and after Delivery

1970 ◽  
pp. 143
Author(s):  
Harold Rumopa ◽  
Freddy W. Wagey ◽  
Eddy Suparman
Keyword(s):  
Oxidative Stress ◽  
Plasma Levels ◽  
Cross Sectional Study ◽  
Hplc Method ◽  
Wilcoxon Test ◽  
Sectional Study ◽  
Cross Sectional ◽  
Average Value ◽  
Significant Difference ◽  
Before And After

  Objective: Determine differences plasma levels MDA in preeclampsiabefore and 2 hours after delivery.   Methods: This was an analytic cross-sectional study. Subjectconsists of 23 pregnancies with preeclampsia, where 23 bloodsamples taken before delivery and 23 were taken 2 hours afterdelivery. This study was conducted from August 2016 untilDecember 2016 at Department of Obstetrics and GynecologyFaculty of Medicine Universitas Sam Ratulangi / Prof. Dr. R. D.Kandou Hospital Manado and satellite hospital. Samples weretaken from plasma and analysed using HPLC method at Prodiaclinical laboratory.   Results: In patients with severe preeclampsia before deliverywe found average value (1.4796  0.40819 nmol/ml), minimumvalue (1.03 nmol/ml) and maximal value (2.77 nmol/ml)and 2 hours after delivery with average value (1.2470 0.34324 nmol/ml), minimum value (0.91 nmol/ml), and maximumvalue (2.47 nmol/ml). by using Wilcoxon test, we foundthere were significant differences in plasma levels of MDA (p =0.000).   Conclusion: This significant difference suggests that decreasedplasma levels of MDA 2 hours after delivery and gives the sense thatthere is a relationship between oxidative stress of cells with severepreeclampsia before and shortly after delivery, that MDA is an indicatorof oxidative stress.   Keywords: malondialdehyde, oxidative stress, peroxidation lipid,preeclampsia

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