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β-Blocker Use and Delayed Onset and Progression of Huntington Disease
JAMA Neurology ( IF 20.4 ) Pub Date : 2024-12-02 , DOI: 10.1001/jamaneurol.2024.4108
Jordan L. Schultz, Amy C. Ogilvie, Lyndsay A. Harshman, Peg C. Nopoulos

ImportanceHuntington disease (HD) is characterized by motor, cognitive, and psychiatric decline. β-Blockers may play a therapeutic role by decreasing enhanced sympathetic tone in HD.ObjectiveTo evaluate the impact of β-blockers on the timing of motor diagnosis onset and progression of HD symptoms.Design, Setting, and ParticipantsThis observational, longitudinal multicenter study used the Enroll-HD platform database (initiated September 2011 to present), including propensity score–matched cohorts of patients with premanifest HD (preHD) and early motor-manifest HD (mmHD) who were either users or nonusers of β-blockers. Participants included patients with genetically confirmed preHD (n = 4683 eligible participants) or mmHD (n = 3024 eligible participants) who were taking a β-blocker and were matched to similar non–β-blocker users.ExposureUninterrupted use of a β-blocker for more than 1 year.Main Outcomes and MeasuresFor PreHD: risk of receiving a motor diagnosis of HD over time. For mmHD: progression rate of total motor score, total functional capacity score, and the symbol digit modalities test. Post hoc analyses were performed to test additional clarifying hypotheses after the primary analyses were completed.ResultsThis study included 174 preHD β-blocker users (59 males; 115 females) with a mean age of 46.4 (SD, 13.1) years and a mean cytosine-adenine guanine repeat length of 41.1 (SD, 2.4) who were well matched to 174 preHD non–β-blocker users. The preHD β-blocker users showed a statistically significant reduction in the annualized hazard of receiving a motor diagnosis compared with nonusers (n = 174) (hazard ratio, 0.66; 95% CI, 0.46-0.94; P = .02). There were 149 mmHD β-blocker users (86 males; 60 females) with a mean age of 58.9 (SD, 11.3) years and a mean cytosine-adenine guanine repeat length of 42.0 (SD, 2.3) matched to 149 mmHD non–β-blocker users. The β-blocker users had a slower mean annualized worsening in total motor score (mean difference [MD], −0.45; 95% CI, −0.85 to −0.06; q = 0.025), total functional capacity score (MD, 0.10; 95% CI, 0.02-0.18; q = 0.025), and symbol digit modalities test (MD, 0.33; 95% CI, 0.10-0.56; q = 0.017) compared with matched nonusers.Conclusions and RelevanceIn this study, β-blocker use was associated with delayed motor onset in preHD and reduced the rate of worsening of symptoms in mmHD. These findings demonstrated that β-blockers may have a therapeutic role in HD but further studies are required.

中文翻译:


β阻滞剂的使用和亨廷顿病的延迟发作和进展



重要性亨廷顿病 (HD) 的特征是运动、认知和精神功能下降。β阻滞剂可能通过降低HD中增强的交感神经张力来发挥治疗作用。目的评价β阻滞剂对运动诊断时间、HD症状发作和进展的影响。设计、设置和参与者这项观察性纵向多中心研究使用了 Enroll-HD 平台数据库(始于 2011 年 9 月至今),包括倾向评分匹配的前显型 HD (preHD) 和早期运动表现型 HD (mmHD) 患者队列,这些患者是 β 阻滞剂的使用者或非使用者。参与者包括经基因证实的 preHD 患者 (n = 4683 名符合条件的参与者) 或 mmHD 患者 (n = 3024 名符合条件的参与者),他们正在服用 β 阻滞剂并与类似的非 β 阻滞剂使用者相匹配。暴露1 年以上不间断地使用β阻滞剂。主要结局和指标对于 PreHD: 随着时间的推移接受 HD 运动诊断的风险。对于 mmHD:总运动评分、总功能能力评分和符号数字模态测试的进展率。在初步分析完成后进行事后分析以测试其他澄清假设。结果这项研究包括 174 名 preHD β 阻滞剂使用者 (59 名男性;115 名女性),平均年龄为 46.4 (SD, 13.1) 岁,平均胞嘧啶-腺嘌呤鸟嘌呤重复长度为 41.1 (SD, 2.4),他们与 174 名 preHD 非 β 阻滞剂使用者匹配良好。与非使用者相比,preHD β阻滞剂使用者接受运动诊断的年化风险在统计学上显着降低 (n = 174)(风险比,0.66;95% CI,0.46-0.94;P = .02)。有 149 名 mmHD β阻滞剂使用者(86 名男性;60 名女性),平均年龄为 58.9 岁(SD,11 岁)。3) 年,平均胞嘧啶-腺嘌呤鸟嘌呤重复长度为 42.0 (SD, 2.3),与 149 mmHD 非 β 阻滞剂使用者相匹配。与匹配的非使用者相比,β阻滞剂使用者的总运动评分(平均差 [MD],-0.45;95% CI,-0.85 至 -0.06;q = 0.025)、总功能能力评分(MD,0.10;95% CI,0.02-0.18;q = 0.025)和符号数字模态测试(MD,0.33;95% CI,0.10-0.56;q = 0.017)的平均年化恶化较慢。结论和相关性在这项研究中,β阻滞剂的使用与preHD患者的运动开始延迟有关,并降低了mmHD患者症状恶化的速度。这些发现表明,β阻滞剂可能在HD中具有治疗作用,但还需要进一步的研究。
更新日期:2024-12-02
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