Longitudinal Study of Delta-Aminolevulinate Dehydratase Activity and Oxidative Profile in Healthy Pregnant Women

• Published in: Biomolecules (Basel, Switzerland) Switzerland), 2019-01, Vol.9 (1), p.18
• Main Authors: de Lucca, Leidiane, Jantsch, Letícia Bigolin, Vendrame, Silmara Ana, Stein, Carolina Dos Santos, Klein, Vanessa Cristina Grólli, Soares, Karina Biaggio, Gallarreta, Francisco Maximiliano Pancich, Moresco, Rafael Noal, Gonçalves, Thissiane de Lima Gonçalves
• Format: Article
• Language: English
• Subjects: Adult; Antioxidants; Antioxidants - chemistry; Antioxidants - metabolism; Ascorbic acid; Ascorbic Acid - blood; Carbohydrates; Catalase; Catalase - metabolism; Creatinine; Energy resources; Enzymes; Female; Fluorides; Free radicals; Gestation; Gestational age; Gestational diabetes; Hematology; Hemoglobin; Humans; Longitudinal Studies; Metabolism; Metabolites; Nitric oxide; Nitric Oxide - metabolism; Obstetrics; Oxidation; Oxidative Stress; Oxygen consumption; Physiology; Plasma; Porphobilinogen Synthase - blood; Porphobilinogen Synthase - metabolism; Preeclampsia; Pregnancy; Pregnancy Trimesters; Pregnant Women; Proteins; Reactive oxygen species; Reactive Oxygen Species - metabolism; Sulfhydryl groups; Thiobarbituric acid; Thiobarbituric Acid Reactive Substances - analysis; Womens health; Young Adult; δ-ALA-D
• ISSN: 2218-273X; 2218-273X
• DOI: 10.3390/biom9010018

Pregnancy is characterized by changes in various organs, triggering changes in the use of energy substrates and increased oxygen consumption. In addition, gestation is an oxidative event that can be assessed by the relationship between free radicals and antioxidants produced by the body. Excessive production of free radicals has detrimental effects such as damage to enzymes, carbohydrates, and DNA. Thus, the objective of this study was to evaluate the oxidative status and antioxidant responses throughout pregnancy through a longitudinal study. Reactive oxygen species were analyzed by means of thiobarbituric acid reactive substances and nitric oxide, the antioxidant system through vitamin C, sulfhydryl groups, total antioxidant capacity, and ferric reducing ability of plasma as well as enzymes such as catalase and delta-aminolevulinate-dehydratase in pregnant women in the three gestational trimesters ( = 30). According to the results, the markers of oxidative damage showed significant differences in the different gestational trimesters where they were increased in the second trimester when compared to the first trimester. The antioxidant defenses responded differently in each gestational trimester, suggesting a response pattern to try to combat the damage caused by free radicals, in order to stabilize the increase of oxidative stress caused in the second gestational trimester.