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JAMA Neurol:气味识别试验与多巴胺转运体显像用于帕金森早期诊断

2017-06-15 zhangfan MedSci原创

嗅觉测试联合多巴胺转运体显像对于4年内帕金森患者的确诊具有较高的预测率,嗅觉异常伴多巴胺转运体显像缺失的患者每年会减少5%的多巴胺转运体,表现出早期帕金森症状。该研究对于帕金森的早期检测和治疗具有重要意义

个体前驱期帕金森病(PD)风险检测有助于疾病机理阐明,实现疾病早期治疗以减缓或防止运动性帕金森病的发生。近日研究人员就气味识别试验与多巴胺转运体(DAT)显像相结合对于帕金森早期诊断的准确性和效果进行了研究。

研究招募的参与者在研究开始后的第2和4年进行嗅觉测试和DAT显像评估,同时参与者每年进行临床随访以确定PD诊断临床证据。参与者通过邮件联系,在家完成嗅觉测试;临床随访和DAT测试在专业机构进行。研究招募了203名嗅觉减退和100名嗅觉正常的参与者。共185名嗅觉减退和95名嗅觉正常的参与者完成了至少1年的随访,有152名(82.2%)嗅觉减退参与者完成4年随访或确诊为PD。研究的主要终点是4年内嗅觉及DAT缺陷患者确诊为PD的比例以及临床PD症状和DAT得分变化。

参与研究的280名患者中,50%为男性,平均年龄63岁。其中21人在基线时已存在嗅觉和DAT缺陷,其中的14人(67%)4年内发展为PD,相比之下基线DAT异常(得分范围在65%-80%)的22名参与者以及109名无DAT缺陷的参与者中发展为PD的人数分别为2人(9%)和3人(2.8%)。基线DAT缺陷患者4年DAT分数平均下降了20.23%,而异常参与者和正常参与者分数分别下降3.68%和5.45%。研究发现,嗅觉异常且DAT缺陷患者发展为PD的相对风险高达17.47 (95% CI, 7.02-43.45)。

研究认为嗅觉测试联合多巴胺转运体显像对于4年内帕金森患者的确诊具有较高的预测率,嗅觉异常伴多巴胺转运体显像缺失的患者每年会减少5%的多巴胺转运体,表现出早期帕金森症状。该研究对于帕金森的早期检测和治疗具有重要意义。

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    2017-08-26 yinhl1978
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    2017-06-25 yzh409
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    2017-06-15 中医痴

    不错的,学习了,谢谢分享!

    0

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