PLOD1 and Infertility: The aim of this study was to examine the possible impact of selected biomarkers (“every day,” hormonal biomarkers such as AMH (anti-Müllerian hormone), FSH (follicle-stimulating hormone), LH (luteinizing hormone), estradiol, progesterone, enzymatic and nonenzymatic antioxidants, and also oxidative stress markers) in serum and FF, and on embryo quality and pregnancy success in infertile women undergoing infertility treatment.