The animals were euthanized by decapitation 24 h after the last treatment. Maternal and offspring hippocampi and striatum were immediately dissected out in ice and stored at − 80 °C for later biochemical analyses. All tissues were homogenized in 1 mM phosphate buffer (pH 7.0) and centrifuged (3000 ×g, 5 min) to remove cellular debris. Supernatants were used for all biochemical
assays described. All the results were normalized by the protein content using bovine albumin as standard (Lowry et al., 1951). The formation of thiobarbituric acid reactive species (TBARS) was quantified by an acid-heating reaction with thiobarbituric acid. It is a widely GSK269962 chemical structure adopted parameter for measure oxidative damage on lipids, as previously described by Draper and Hadley (1990). The samples were mixed with 0.6 mL of 10% trichloroacetic acid (TCA) and centrifuged (10,000 ×g 10 min). Supernatant was mixed with 0.5 mL of 0.67% thiobarbituric acid and heated in a boiling water bath for 25 min. TBARS were determined by the absorbance selleck compound in a spectrophotometer at 532 nm. Results were expressed as nmol TBARS/mg protein. The formation of carbonyl groups was used as a parameter for oxidative damage to proteins, based on the reaction with dinitrophenylhidrazine (DNPH), as previously described by Levine et al. (1990). Proteins were precipitated
by the addition of 20% TCA and re-solubilized in DNPH. Then, the absorbance was read in a spectrophotometer at 370 nm. Results were expressed as nmol carbonyl/mg protein. The total thiol content in its reduced form was measured as an estimative of redox status, since it is present in proteins as well as glutathione molecules, and is played as an intracellular redox buffer. As previously described
by Ellman (1959), an aliquot of the sample was diluted in SDS 0.1%. Then, was added 0.01 M 5,5dithiobis-2-nitrobenzoic Selleck Venetoclax acid in ethanol. The intense yellow color was developed and read in a spectrophotometer at 412 nm after 60 min. Results were expressed as nmol SH/mg protein. The total reactive antioxidant potential (TRAP) was used as an index of non-enzymatic antioxidant capacity. As previously described by Lissi et al. (1992), this assay is based on the peroxyl radical (generated by AAPH solution, 2,2azobis[2-amidinopropane], with luminol) quenching by sample compounds. Sample addition decreases the luminescence proportionately to its antioxidant potential. The results were transformed in percentual and the area under the curve (AUC) was quantified as described by Dresch et al. (2009) by using GraphPad Software (San Diego, CA, USA — version 5.00). The AUC are inversely proportional to antioxidant capacity, which is higher with lower AUC values, and is lower with higher AUC values. Therefore, we express the results as the inverse value (1/AUC) to make it easier to comprehend.