Objectives: Although bisphosphonates (BPs) are effective for the majority of patients with osteoporosis, some individuals do not adequately respond to these drugs. The objective of this study was to estimate the preva...Objectives: Although bisphosphonates (BPs) are effective for the majority of patients with osteoporosis, some individuals do not adequately respond to these drugs. The objective of this study was to estimate the prevalence of true BP non-responders who showed insufficient response after both oral BPs and intravenous ibandronate. Methods: Among 146 consecutive patients with postmenopausal osteoporosis who received oral BP monotherapy for more than 12 months, insufficient responders to oral BP monotherapy were switched to intravenous ibandronate injection and followed for more than 12 months. Serum N-terminal telopeptide of type I collagen (NTX) and bone alkaline phosphatase (BAP) concentrations were measured. Patients who also showed insufficient response to intravenous ibandronate were defined as true BP non-responders. Insufficient response to BP therapy was evaluated based on the serum NTX reduction cut-off for minimum significant change. Results: Sixty-one patients (41.8%) were diagnosed as oral BP non-responders. Fourteen patients who switched to intravenous ibandronate and had complete data available were used for final analysis. After switching to intravenous ibandronate, both NTX and BAP decreased significantly (p Conclusion: These results estimated that as few as 9% - 15% (i.e., 21.4% - 35.7% of 41.8%) or as many as 24% - 27% (i.e., 57.1% - 64.3% of 41.8%) of patents might be true BP non-responders.展开更多
Although FRAX (WHO Fracture Risk assessment Tool), developed by the WHO, is a well-validated tool for determining the probability of a major osteoporotic fracture in the next 10 years, it doesn’t include a number of ...Although FRAX (WHO Fracture Risk assessment Tool), developed by the WHO, is a well-validated tool for determining the probability of a major osteoporotic fracture in the next 10 years, it doesn’t include a number of other impact factors such as exercise and nutrition. The purpose of this study was to compare the differences in FRAX between subjects with and without exercise habits or intake of calcium/coffee. A significant difference in FRAX was observed between the groups with respect to exercise (p < 0.001). There were no significant differences in FRAX, however, between the groups with and without intake of calcium/coffee. Although exercise habits are not included in FRAX, our findings suggest that exercise status influenced other factors included in FRAX. Since exercise is reported to prevent falls and fall-related osteoporotic fractures, including exercise status in FRAX may be more effective for estimating the possibility of future fractures. Further investigation should be conducted to determine whether exercise status is an important risk factor, independent of FRAX, for osteoporotic fractures.展开更多
文摘Objectives: Although bisphosphonates (BPs) are effective for the majority of patients with osteoporosis, some individuals do not adequately respond to these drugs. The objective of this study was to estimate the prevalence of true BP non-responders who showed insufficient response after both oral BPs and intravenous ibandronate. Methods: Among 146 consecutive patients with postmenopausal osteoporosis who received oral BP monotherapy for more than 12 months, insufficient responders to oral BP monotherapy were switched to intravenous ibandronate injection and followed for more than 12 months. Serum N-terminal telopeptide of type I collagen (NTX) and bone alkaline phosphatase (BAP) concentrations were measured. Patients who also showed insufficient response to intravenous ibandronate were defined as true BP non-responders. Insufficient response to BP therapy was evaluated based on the serum NTX reduction cut-off for minimum significant change. Results: Sixty-one patients (41.8%) were diagnosed as oral BP non-responders. Fourteen patients who switched to intravenous ibandronate and had complete data available were used for final analysis. After switching to intravenous ibandronate, both NTX and BAP decreased significantly (p Conclusion: These results estimated that as few as 9% - 15% (i.e., 21.4% - 35.7% of 41.8%) or as many as 24% - 27% (i.e., 57.1% - 64.3% of 41.8%) of patents might be true BP non-responders.
文摘Although FRAX (WHO Fracture Risk assessment Tool), developed by the WHO, is a well-validated tool for determining the probability of a major osteoporotic fracture in the next 10 years, it doesn’t include a number of other impact factors such as exercise and nutrition. The purpose of this study was to compare the differences in FRAX between subjects with and without exercise habits or intake of calcium/coffee. A significant difference in FRAX was observed between the groups with respect to exercise (p < 0.001). There were no significant differences in FRAX, however, between the groups with and without intake of calcium/coffee. Although exercise habits are not included in FRAX, our findings suggest that exercise status influenced other factors included in FRAX. Since exercise is reported to prevent falls and fall-related osteoporotic fractures, including exercise status in FRAX may be more effective for estimating the possibility of future fractures. Further investigation should be conducted to determine whether exercise status is an important risk factor, independent of FRAX, for osteoporotic fractures.
