SLC7A7 and osteoporosis: Hence, we developed a global Slc7a7 knockout mouse model (Slc7a7Lbu/Lbu) and a conditional Slc7a7 knockout mouse model (Slc7a7f/f) to further investigate aspects of growth failure, skeletal defects and osteoporosis associated with Slc7a7 deficiency (Stroup et al., 2020).