化疗对乳腺癌女性骨矿物质密度和微观结构的影响
Sayaka Kuba1, Ryuji Niimi2, Ko Chiba2
1Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto-Machi, Nagasaki, 852-8501, Japan. skuba@nagasaki-u.ac.jp.
Journal of bone and mineral metabolism
|July 19, 2024
概括
化疗显著降低骨矿物质密度 (BMD),并改变早期乳腺癌妇女的骨微观结构. 治疗后的六个月内,骨质损失仍然持续,突出显示了潜在的长期骨健康风险.
科学领域:
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
- 骨的新陈代谢 骨的新陈代谢
背景情况:
- 化疗通常涉及使用类固醇来控制恶心和吐等副作用.
- 化疗,特别是类固醇对骨健康,特别是骨微观结构的影响尚不清楚.
- 接受化疗的早期乳腺癌患者是调查治疗相关骨变化的关键人口.
研究的目的:
- 评估接受化疗的早期乳腺癌妇女的骨矿物质密度 (BMD) 和骨微观结构的变化.
- 使用高分辨率的外围定量计算断层扫描 (HR-pQCT) 进行详细的骨微观结构分析.
- 为了评估化疗对骨健康的时间影响,治疗后长达六个月.
主要方法:
- 一项前性,单臂观察性研究,涉及患有乳腺癌的非骨质疏松症,绝经后妇女.
- 测量包括双能X射线吸收度 (DXA) 和HR-pQCT在基线,化疗结束和化疗后六个月.
- 还评估了骨循环的生物标志物,酸耐酸酸酶-5b (TRACP-5b) 和I型N终端蛋白 (P1NP).
主要成果:
- 化学治疗后六个月,在远部骨 (-4.5%) 和半径 (-2.3%) 观察到 BMD 总体体积的显著下降,用 HR-pQCT 测量.
- 皮层和椎体积 BMD 也显示出显著的减少,特别是在远部骨和半径.
- DXA显示在腰椎,全部和大腿部显著的BMD损失. 骨循环标志物 (TRACP-5b,P1NP) 在化疗结束时增加.
结论:
- 化疗导致早期乳腺癌的绝经后妇女在承重骨的骨矿密度明显恶化.
- 骨质损失持续,在化疗结束六个月后甚至更加明显.
- 这些发现强调了需要对接受化疗的乳腺癌患者骨健康进行监测和潜在干预的必要性.
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