The Effect of Alpha Lipoic Acid (ALA) Supplementation on the in Vitro Maturation Media of Goat Oocyte on Tumor Alpha Necrosis Factor (TNF-α) Expression and Malondialdehyde (MDA) Levels

Abstract

This study aimed to determine the effect of Alpha Lipoic Acid (ALA) supplementation on in vitro maturation media of goat oocytes on Tumor Necrosis Factor Alpha (TNF-α) expression and Malondialdehyde (MDA) levels. This laboratory experimental study consisted of three treatment groups: control group (G0), 25 μmol/L ALA supplementation (G1), and 50 μmol/L ALA supplementation (G2). A total of 366 goats Cumulus Oocyte Complex (COCs) were collected, then selected into 216 COCs, and matured in vitro for 22 hours in a 5% CO2 incubator, 98% humidity, 38.50C temperature. After that, TNF-α expression was identified using Immunocytochemistry staining with the addition of TNF-α antibody and calculated using the Remmele Scale Index. Measurement of MDA levels using the ELISA method. The data obtained were analyzed using Kruskal-Wallis, One Way ANOVA, and Duncan’s in the SPSS 24 software program (p<0.05). The expression value of TNF-α G0 was 0.75±1.39, G1 was 5.56±3.05, and G2 was 2.00±1.80. MDA levels of G0 were 26.52 ±2.92, G1 was 46.44 ±4.87, and G2 was 30.41±5.67. TNF-α expression data and MDA levels G0 and G2 didn’t show a significant difference, while G0 and G2 compared to G1 showed a significant difference (p<0.05). ALA supplementation of 25 µmol/L increased TNF-α expression or MDA levels and 50 µmol/L on in vitro maturation media of goat oocytes could reduce TNF-α expression or MDA levels than 25 µmol/L.