Fig. 5From: Determination of the median lethal dose of zinc gluconate in mice and safety evaluationHistological analysis of renal tissue 48Â h after the last intravenous injection of different sub-lethal doses of zinc gluconate. Representative images of H&E staining of kidney sections. The black arrow indicates renal tubular epithelial granular degeneration and cytoplasmic vacuolization. Magnification: x200. Note: NC:normal saline, I:1/8LD50,II:1/4LD50,1/2LD50,IV:3/4LD50Back to article page