PLOD1 and osteoporosis: The FSH and LH levels were higher in the osteoporosis group than in the normal BMD group (FSH normal: 54.5±44.1 pg/ml, FSH osteoporosis: 81.3±34.2 pg/ml, LH normal: 53.1±41.2, LH osteoporosis: 75.1±26.1 pg/ml).