AUTHOR=Cao Bo-Ning , Zhang Cai-Yan , Wang Zhen , Wang Yao-Xian TITLE=Causal relationship between 412 gut microbiota, 1,400 blood metabolites, and diabetic nephropathy: a randomized Mendelian study JOURNAL=Frontiers in Endocrinology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2024.1450428 DOI=10.3389/fendo.2024.1450428 ISSN=1664-2392