PDK1 and endometriosis: Glucose transporter 1 (GLUT1), lactate dehydrogenase A (LDHA), and pyruvate dehydrogenase kinase 1 (PDK1) have been suggested as key enzymes for maintaining glycolytic metabolism in endometriosis (McKinnon et al., 2014; Young et al., 2014; Lee et al., 2018; Kido et al., 2020).