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Lancet Child&Adolescent Health:联合益生菌和花生口服免疫疗法的长期的临床和免疫效益

2017-08-16 qinqiyun MedSci原创

花生是常见的食物过敏原,是食物过敏中导致死亡人数最高的一种。花生过敏的症状有血压降低、面部和喉部肿胀,严重时阻碍呼吸,从而导致休克。近日,Lancet子刊上发表一篇对花生脱敏治疗的相关文章。

花生是常见的食物过敏原,是食物过敏中导致死亡人数最高的一种。花生过敏的症状有血压降低、面部和喉部肿胀,严重时阻碍呼吸,从而导致休克。近日,Lancet子刊上发表一篇对花生脱敏治疗的相关文章。


口服免疫疗法已经引起人们对食物过敏潜在治疗的兴趣,但对于其长期效应知之甚少。Kuang-Chih Hsiao及其同事对参与一个随机、双盲、安慰剂对照的联合益生菌和花生口服免疫治疗(PPOIT)试验的受试者的长期结果进行评估,该试验之前已证实该疗法可诱导脱敏,并可持续两周无反应性。

所有参与PPOIT随机试验的受试者均可参与试验终止后的4年随访研究。系统的记录治疗终止后的4年里受试者对花生的摄入和产生的不良反应。此外,还邀请受试者进行花生皮试、检测花生sIgE和sIgG的水平,并进行双盲安慰剂对照试验,挑战是否可持续8周无反应性。

56位受试者中48位(86%)参与随访研究。PPOIT组(SD0.6)和安慰剂组(SD0.7)受试者终止治疗后的中位时间是4.2年。与安慰剂组相比,PPOIT组受试者更有可能继续服用花生(24位中有16位[67% 比 24位中有1位[4%];绝对差63%[95% CI42-83],p=0.001;需要治疗的病例数1.6[95% CI1.2-2.4])。PPOIT组有4位、安慰剂组有6位受试者在终止治疗后服用花生时出现过敏反应,但均未发生全身过敏反应。PPOIT组受试者皮试红肿的直径更小(平均8.1mm[SD7.7]比13.3mm[7.6];绝对差-5.2mm[95% CI-10.3-0.0];年龄调整和性别挑战后p=0.035),而且,比安慰剂组受试者有更高的花生sIgG4/sIgE比(几何平均数67.3[95% CI 10.3-440.0]比5.2 [1.2–21.8]; p=0.031)。PPOIT组的12位受试者中有7位(58%)获得8周持续无反应性,而安慰剂组15位受试者仅有1位(7%)(绝对差52%[95% CI21-82],p=0.012;需要治疗的病例数1.9[95% CI1.2-4.8]).

PPOIT可获得持久的临床效益,并持续抑制对花生的过敏反应。

原始出处:


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    2018-01-10 howi
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    2017-12-07 shizhenshan
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    2017-12-04 docwu2019
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