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Post-pregnancy osteoporosis is not a common disease and is hard to diagnosis because their specific situation is post-partum and lactation. It commonly occurs on lumbar spine within a few months after the birth of a patient’s first child and it could lead to be fracture after minor trauma. Although its etiology is not clear, it would not be of sufficient magnitude to cause fractures unless the woman already had a substantial decrease in bone mass. Also, it is rare to be combined with ankylosing spondylitis. Ankylosing spondylitis has a higher risk of osteoporosis and vertebral fracture which increased with the duration of disease. We report a case of post-pregnancy osteoporosis with multiple spinal compression fracture in association of ankylosing spondylitis. [ABSTRACT FROM AUTHOR]

Tumor necrosis factor (TNF) is a central regulator of chronic inflammatory diseases and plays a major role in the host immune system against tuberculosis (TB). TNF antagonists, infliximab and etanercept are effective in treating chronic inflammatory diseases by inhibiting TNF, but increase the risk of TB as a result of immunosuppression. Previous studies have shown that the risk of TB is greater in patients who received infliximab than in those who received etanercept and several hypotheses on the action mechanisms of the two agents have been presented in order to explain this difference in the risk of TB. As the clinical use of TNF antagonists increase, the incidence rate of TB may increase. Therefore, it is necessary that clinicians considering the use of TNF antagonists pay much attention to the prevention and control of TB and understand the mechanisms of action of the TNF antagonists. This case shows that etanercept treatment can be safely administered during the treatment of TB. In the future, additional studies will be needed to determine the safety of etanercept and the optimal time for the administration of etanercept during the TB treatment. [ABSTRACT FROM AUTHOR]