JAMA Pediatr:ADHD儿童和青少年服用兴奋药物显著降低骨量

2016-12-10 MedSci MedSci原创

鼠研究揭示交感神经系统激活导致骨量减少。用于治疗注意缺陷/多动障碍(ADHD)的兴奋药物增加交感神经张力,并可能影响骨重建。由于骨量增加是在成年早期完成的,所以评估兴奋剂对生长中的儿童骨密度的影响是至关重要的。来自美国的研究人员开展了一项研究,该研究的目的是探讨在儿童和青少年人群中,兴奋药物的使用和骨量之间的关系。该横断面分析使用了在2005年1月1日至2010年12月31日期间国家健康和营养调查

鼠研究揭示交感神经系统激活导致骨量减少。用于治疗注意缺陷/多动障碍(ADHD)的兴奋药物增加交感神经张力,并可能影响骨重建。由于骨量增加是在成年早期完成的,所以评估兴奋药物对生长中的儿童骨密度的影响是至关重要的。

来自美国的研究人员开展了一项研究,该研究的目的是探讨在儿童和青少年人群中,兴奋药物的使用和骨量之间的关系。

该横断面分析使用了在2005年1月1日至2010年12月31日期间国家健康和营养调查(NHANES)数据库收集的数据。NHANES是一系列关于美国人口的全国代表性的健康和营养调查。所有具有双能X射线吸收测定法(DXA)数据,人体测量,人口统计学和处方药物使用数据的8至20岁的儿童,青少年和年轻成人都有资格参加。在多变量线性回归分析中包括的6489名受访者中,159名是兴奋药物使用者,6330名是非使用者。数据分析于2015年10月8日至2016年12月31日期间完成。

该研究的暴露点是兴奋药物的使用,通过与患者会面问卷调查确定。

主要结果为兴奋药物的使用和全股骨,股骨颈之间的联系,腰椎骨矿物质含量(BMC)和骨密度(BMD)通过使用DAX进行评估。

研究参与者包括6489名NHANES参与者,平均(SD)年龄为13.6(3.6)岁。调整协变量后,兴奋药物的使用与骨量降低有关。与非使用者相比,兴奋药物使用者的平均腰椎BMC显著降低(12.76g;95%CI,12.28-13.27g vs 13.38g;95%CI,13.26-13.51g;P=0.02),平均腰椎BMD(0.90g/cm2;95%CI,0.87-0.94g/cm2 vs 0.94g/cm2;95%CI,0.94-0.94g/cm2;P=0.03)和平均股骨颈BMC(4.34g;95%CI 4.13-4.57g vs 4.59g;95%CI,4.56-4.62g;P=0.03)也显著降低。

兴奋药物使用者股骨颈的平均BMD(0.88g/cm2;95%CI,0.84-0.91g/cm2 vs 0.91g/cm2;95%CI,0.90-0.91g/cm2;P=0.08)和全股骨的BMD(0.94g/cm2;95%CI,0.90-0.99g/cm2 vs 0.99g/cm2;95%CI,0.98-0.99g/cm2;P=0.05)也低于非使用者。

与非使用者相比,参与者接受兴奋药物治疗3个月或更长时间后,腰椎骨BMD(0.89g/cm2;95%CI,0.85-0.93g/cm2 vs 0.94g/cm2;95%CI,0.94-0.94g/cm2;P=0.02)和BMC(12.71g;95%CI,12.14-13.32g vs 13.38g;95%CI,13.25-13.51g;P=0.03)和股骨颈BMD(0.87g/cm2; 95%CI,0.74-0.83g/cm2 vs 0.91g/cm2;95%CI,0.83-0.84g/cm2;P=0.048)显著降低。

与非使用者相比,使用兴奋药物的儿童和青少年腰椎和股骨的DXA测量值较低。这些发现支持未来进行前瞻性研究的需要,以检查兴奋药物使用对儿童骨量的影响。

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    2017-10-26 clmlylxy
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    2017-07-01 feather89
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    2016-12-12 lg.zhao

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