Cadmium exposure activates ferroptosis through downregulated PPARγ expression in preeclampsia placenta - Xuemeng Li; Yumin Wu; Ziyan Zhao; Yangchen Wang; Mengqing Li; Yiding Geng; Jiancai Yin; Weilong Lin; Huiru Cheng; Baojing Zhao; Yuanyuan Yang; Zhen Yu (Toxicology, 2026)