Solasodine, a steroidal alkaloid derived from Solanum nigrum Linn, reverses ABCB1-mediated multidrug resistance in cancer: In vitro and in vivo studies - Baojie Liu; Yongzheng Lu; Tao Yu; Xulong Shao; Xinyu Hou; Yahan Sun; Baohui Su; Jianying Liu; Weiguo Feng (South African Journal of Botany, 2026)