Aleksandra Zygula1, Przemyslaw Kosinski2, Aneta Zwierzchowska1, Malgorzata Sochacka3, Piotr Wroczynski3, Magdalena Makarewicz-Wujec4, Bronislawa Pietrzak1, Mirosław Wielgos1, Mateusz Rzentala5, Joanna Giebultowicz3. 1. 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, 1/3 Starynkiewicza Square, 02-015 Warsaw, Poland. 2. 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, 1/3 Starynkiewicza Square, 02-015 Warsaw, Poland. Electronic address: pkosinski@wum.edu.pl. 3. Department of Bioanalysis and Drugs Analysis, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Street, 02-097 Warsaw, Poland. 4. Department of Clinical Pharmacy and Pharmaceutical Care, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Street, 02-097 Warsaw, Poland. 5. Dental Practice, 5 Osiecka Street, 05-430 Celestynow, Poland.
Abstract
OBJECTIVES: The aims of the study were as follows: to investigate possible differences between plasma oxidative status (OS) in late-onset GDM and well-characterized healthy pregnant women (oral health, diet); to verify the existence of possible differences between GDMG1 (diet-treated) and GDMG2 (insulin-treated GDM); to determine whether oxidative stress markers could be detected in saliva. MATERIAL AND METHODS: A total of 89 pregnant women (n = 89; 59 with GDM and 30 controls) were evaluated. Malondialdehyde (MDA), total antioxidant capacity (ORAC), inactivation of aldehyde dehydrogenase (IALDH), activity of glutathione peroxidase (GPx) and glutathione transferase (GST)) in plasma and/or saliva were analyzed. RESULTS: The activity of GPx and GST in plasma was higher in GDMG2 as compared to GDMG1 and controls. Also, in GDMG2, elevated concentrations of salivary MDA and higher IALDH were observed. In contrast, GDMG1 had higher plasma ORAC and lower GPx activity as compared to controls, probably due to low-energy diet, high in antioxidants and fibers. Salivary and plasma OS were correlated and most significant for ORAC. CONCLUSION: Oxidative stress were not observed in GDMG1 but were confirmed to be moderate in GDMG2. However, large variability of the analyzed markers in GDM groups encourages screening of all patients, regardless of the treatment option. Saliva may be considered useful for the estimation of oxidative stress levels in GDM populations.
OBJECTIVES: The aims of the study were as follows: to investigate possible differences between plasma oxidative status (OS) in late-onset GDM and well-characterized healthy pregnant women (oral health, diet); to verify the existence of possible differences between GDMG1 (diet-treated) and GDMG2 (insulin-treated GDM); to determine whether oxidative stress markers could be detected in saliva. MATERIAL AND METHODS: A total of 89 pregnant women (n = 89; 59 with GDM and 30 controls) were evaluated. Malondialdehyde (MDA), total antioxidant capacity (ORAC), inactivation of aldehyde dehydrogenase (IALDH), activity of glutathione peroxidase (GPx) and glutathione transferase (GST)) in plasma and/or saliva were analyzed. RESULTS: The activity of GPx and GST in plasma was higher in GDMG2 as compared to GDMG1 and controls. Also, in GDMG2, elevated concentrations of salivary MDA and higher IALDH were observed. In contrast, GDMG1 had higher plasma ORAC and lower GPx activity as compared to controls, probably due to low-energy diet, high in antioxidants and fibers. Salivary and plasma OS were correlated and most significant for ORAC. CONCLUSION: Oxidative stress were not observed in GDMG1 but were confirmed to be moderate in GDMG2. However, large variability of the analyzed markers in GDM groups encourages screening of all patients, regardless of the treatment option. Saliva may be considered useful for the estimation of oxidative stress levels in GDM populations.
Authors: Ewin B Almeida; Juliana M B Santos; Vitória Paixão; Jonatas B Amaral; Roberta Foster; Adriane Sperandio; Tamaris Roseira; Marcelo Rossi; Telma G Cordeiro; Fernanda R Monteiro; Gislene R Amirato; Carlos A F Santos; Rodolfo P Vieira; Mauro Vaisberg; Marcelo P Barros; André L L Bachi Journal: Oxid Med Cell Longev Date: 2020-01-22 Impact factor: 6.543