Text this: Antioxidants-Related Superoxide Dismutase (<i>SOD</i>), Catalase (<i>CAT</i>), Glutathione Peroxidase (<i>GPX</i>), Glutathione-S-Transferase (<i>GST</i>), and Nitric Oxide Synthase (<i>NOS</i>) Gene Variants Analysis in an Obese Population: A Preliminary Case-Control Study