Antioxidant homeostasis is disturbed in fetuses with leptin-resistant genotypes: A cross-sectional study

Background: Leptin resistance is associated with lower reproductive efficiency, with deficiencies in embryo viability and growth leading to low prolificacy and high incidence of intrauterine growth restriction. Objective: We aimed to investigate the underlying mechanisms of the leptin-resistance, ev...

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Main Authors: Pedro Gonzalez-Añover (Author), Laura Torres-Rovira (Author), Consolacion García-Contreras (Author), Marta Vazquez-Gomez (Author), Jose Luis Pesantez (Author), Maria Victoria Sanz-Fernandez (Author), Susana Astiz (Author), Antonio Gonzalez-Bulnes (Author)
Format: Book
Published: Shahid Sadoughi University of Medical Sciences, 2018-08-01T00:00:00Z.
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Summary:Background: Leptin resistance is associated with lower reproductive efficiency, with deficiencies in embryo viability and growth leading to low prolificacy and high incidence of intrauterine growth restriction. Objective: We aimed to investigate the underlying mechanisms of the leptin-resistance, evaluating the antioxidant homeostasis of leptin-resistant and lean swine fetuses. Materials and Methods: The study included 70 plasma samples from fetuses at day 62 of gestation (mid-pregnancy), from breeds with (Iberian breed; n=35) and without leptin resistance (25% Large White x 25% Landrace x 50% Pietrain; n=35). The antioxidant status of the plasma samples was determined by photoinduced chemiluminescence whilst systemic oxidative stress was assessed determining plasma hydrogen peroxide concentration by enzimoimmunoassay. Results: Plasma total antioxidant capacity was significantly lower in leptin-resistant fetuses (p=0.003), whilst systemic oxidative stress was increased (p=0.02). Conclusion: Our results indicate key differences in the antioxidant status in pregnancies affected by leptin resistance
Item Description:2476-4108
2476-3772