The effects of BSA-stabilized selenium nanoparticles and sodium selenite supplementation on the structure, oxidative stress parameters and selenium redox biology in rat placenta
2022
Authors:
Manojlović-Stojanoski, MilicaBorković Mitić, Slavica
Nestorović, Nataša
Ristić, Nataša
Trifunović, Svetlana
Stevanović, Magdalena
Filipović, Nenad
Stojsavljević, Aleksandar
Pavlović, Slađan
Document Type:
Article (Published version)
Metadata
Show full item recordAbstract:
The chemical element selenium (Se) is a nonmetal that is in trace amounts indispensable for normal cellular functioning. During pregnancy a low Se status can increase the risk of oxidative stress. However, elevated concentrations of Se in the body can also cause oxidative stress. This study aimed to compare the effects of BSA-stabilized Se nanoparticles (SeNPs, Se0) and inorganic sodium-selenite (NaSe, Se+4) supplementation on the histological structure of the placenta, oxidative stress parameters and the total placental Se concentration of Wistar rats during pregnancy. Pregnant females were randomized into four groups: (i) intact controls; (ii) controls that were dosed by daily oral gavage with 8.6% bovine serum albumin (BSA) and 0.125 M vit C; (iii) the SeNP group that was administered 0.5 mg of SeNPs stabilized with 8.6% BSA and 0.125 M vit C/kg bw/day by oral gavage dosing; (iv) the NaSe group, gavage dosed with 0.5 mg Na2SeO3/kg bw/day. The treatment of pregnant females started on gestational day one, lasted until day 20, and on day 21 of gestation, the fetuses with the placenta were removed from the uterus. Our findings show that the mode of action of equivalent concentrations of Se in SeNPs and NaSe depended on its redox state and chemical structure. Administration of SeNPs (Se0) increased fetal lethality and induced changes in the antioxidative defense parameters in the placenta. The accumulation of Se in the placenta was highest in SeNP-treated animals. All obtained data indicate an increased bioavailability of Se in its organic nano form and Se0 redox state in comparison to its inorganic sodium selenite form and Se+4 redox state
Keywords:
selenium; placenta; rats; oxidative stress parameters; nanoselenium; embryo; fetusSource:
International Journal of Molecular Sciences, 2022, 23, 21, 13068-Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200007 (University of Belgrade, Institute for Biological Research 'Siniša Stanković') (RS-MESTD-inst-2020-200007)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200175 (Institute of Technical Sciences of SASA, Belgrade) (RS-MESTD-inst-2020-200175)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200288 (Innovation Center of the Faculty of Chemistry) (RS-MESTD-inst-2020-200288)
DOI: 10.3390/ijms232113068
ISSN: 1422-0067
PubMed: 36361856