After more than 5 years the group that received anastrozole had significantly better clinical results than the tamoxifen group. The trial suggested that anastrozole is the preferred medical therapy for postmenopausal women with localized breast cancer, which is estrogen receptor (ER) positive. Another study found that the risk of recurrence was reduced by 40%, but was associated with an increased risk of bone fractures.
The excretory system is a system of organs that removes waste products from the body. When cells in the body break down proteins (large molecules that are essential to the structure and functioning of all living cells), they produce wastes such as urea (a chemical compound of carbon, hydrogen, nitrogen, and oxygen).
The urinary system removes. waste materials. Life processes produce wastes. You have read that the respiratory system and the digestive system. provide the body with energy and materials necessary for important. processes. During these processes, waste materials are produced. body systems. Several systems in your body remove wastes. from the blood. gases from the blood. â¢ The digestive system disposes of solid waste products from food. â¢ The skin releases wastes through sweat glands.