How does a decline in estrogen affect bone health during menopause?

How does a decline in estrogen affect bone health during menopause?

• A. It has no effect on bone
• B. It only affects teeth
• C. It leads to bone loss and increased fracture risk
• D. It improves bone density

Answer: (C)

Declining estrogen during menopause shifts the balance of bone remodeling toward resorption. Estrogen normally helps keep bones strong by dampening osteoclast activity and signaling that promotes bone breakdown. When estrogen levels fall, osteoclasts become more active due to increased RANKL and decreased inhibition from osteoprotegerin, leading to net bone loss over time. This reduced bone mineral density raises the risk of fractures, especially in the spine and hip. Therefore, the statement that bone loss occurs with an increased fracture risk is the accurate interpretation. It’s not about teeth as the primary effect, and it does not imply that bone density improves with menopause.

Declining estrogen during menopause shifts the balance of bone remodeling toward resorption. Estrogen normally helps keep bones strong by dampening osteoclast activity and signaling that promotes bone breakdown. When estrogen levels fall, osteoclasts become more active due to increased RANKL and decreased inhibition from osteoprotegerin, leading to net bone loss over time. This reduced bone mineral density raises the risk of fractures, especially in the spine and hip. Therefore, the statement that bone loss occurs with an increased fracture risk is the accurate interpretation. It’s not about teeth as the primary effect, and it does not imply that bone density improves with menopause.