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Valentina Rovelli¹, Vittoria Ercoli¹, Alice Re Dionigi¹

¹Clinical Department of Pediatrics, San Paolo Hospital, ASST Santi Paolo e Carlo, University of Milan, Italy.

Molecular genetics and metabolism reports

|August 21, 2023

概括

基尿症 (PKU) 患者可能面临代谢性酸性和低骨矿化,可能是由于酸性蛋白质替代品. 低和摄入量也可能有助于. 需要进一步的研究来了解这些风险.

科学领域:

代谢障碍代谢障碍代谢障碍
营养科学营养科学
骨的健康骨的健康

背景情况:

饮食干预是预防氨酸积累的基尿症 (PKU) 的主要治疗方法.
虽然有效保护中枢神经系统,但PKU管理可能会产生其他系统性影响,包括骨和脏健康.
这些潜在不良结果背后的机制需要进一步研究.

研究的目的:

为了研究生化参数,骨矿物质密度 (BMD) 和成人PKU患者的饮食摄入量.
探索PKU中代谢酸症,饮食组成和骨健康之间的潜在联系.
评估PKU患者使用的蛋白质替代品 (PS) 和特殊低蛋白质食品 (SLPF) 的酸性质.

主要方法:

20名成年PKU患者的观察性,横截面和描述性研究.
生物化学参数的评估,包括血液气体静脉分析 (VBG).
使用Z-score评估骨矿物质密度 (BMD) 并分析3天的食物记录,包括PS和SLPF成分.

主要成果:

60%的PKU患者通过VBG指数显示代谢酸化,VBG pH与BMD Z-score相关 (p=0.022).
低骨矿物质密度 (Z-score < -2.0) 在20%的患者中观察到.
蛋白质替代品 (PS) 具有中度酸性,SLPF具有性,总和摄入量低于预期.

结论:

患有PKU的患者可能面临与低骨矿化相关的代谢酸症的风险,可能受PS酸性质的影响.
饮食因素,包括低和摄入量,可能在这些代谢和骨健康问题中起作用.
需要进一步的研究来阐明PKU管理,饮食和长期健康结果之间的关系.

关键词:

骨质密度骨质密度骨质密度饮食干预措施饮食干预措施代谢性亚cidosis 的发生.在PKU中,PKU是PKU.普拉拉尔 (PRAL) 是一个主要的产品.

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