AUTHOR=Su Jiayu , Zhang Ying , Wang Xuan , Hu Xiaochao , Zhou Ke , Zhu Huimin , Liu Ehu , Liu Shijia TITLE=Huangkui capsules regulate tryptophan metabolism to improve diabetic nephropathy through the Keap1/Nrf2/HO-1 pathway JOURNAL=Frontiers in Pharmacology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1535352 DOI=10.3389/fphar.2025.1535352 ISSN=1663-9812