Cheng-Kai Hsu, Lun-Ching Chang, Yih-Ting Chen, Chun-Yu Chen, Heng-Rong Hsu, Shi Bai, Chin-Chan Lee, Hansraj Jangir, Chiao-Yin Sun, Shih-Chi Su, I-Wen Wu
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SGLT2抑制剂对透析前CKD患者蛋白结合尿毒症毒素和肠道微生物群的调节作用:一项匹配的病例对照研究
背景:慢性肾脏疾病(CKD)和肠道微生物群之间复杂的相互作用越来越受到关注,肠道生态失调与尿毒症毒素积累和CKD进展有关。钠-葡萄糖共转运蛋白2 (SGLT2)抑制剂目前正在改变CKD的管理,但对塑造肠道微生物群的影响尚不确定。本研究旨在阐明SGLT2抑制剂对CKD患者肠道微生物组成紊乱和代谢反应的影响。方法:在一项匹配的病例对照研究中,分析粪便微生物群和血清短链脂肪酸(SCFAs)和肠道源性尿毒症毒素的靶向谱,包括60名CKD患者(治疗:n=30;未治疗组:n=30)和30名非ckd对照组。结果:三个研究组的肠道微生物组成差异显著。接受SGLT2抑制剂治疗的CKD患者表现出独特的分类学特征,如粪拟杆菌和粪拟杆菌的富集。代谢组学调查显示,在SGLT2抑制剂治疗的CKD患者中,两种尿毒症溶质,吲哚酚硫酸酯(IS)和对甲酰硫酸酯(pCS)以及几种scfa(甲酸、乙酸、丙酸、戊酸和2-甲基丁酸)减少。共现分析显示,一组肠道微生物与pCS水平呈正相关或负相关,这些与pCS相关的肠道微生物丰度与is和异戊酸水平分别呈相同或相反方向相关。进一步的功能预测表明与蛋白质和碳水化合物代谢相关的途径减弱。结论:CKD患者使用SGLT2抑制剂治疗与不同的肠道微生物组成和代谢物谱相关,表明可能调节肠道生态失调和代谢途径。需要进一步的研究来阐明这些发现在CKD治疗中的临床意义。
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