TgZ expression in other tissues.

Stained with H&E (A, C, E, G, I, K) and X-gal (A-L). (A, B) Small intestine, showing β-galactosidase staining in Paneth cells at the base of the crypts. (C, D) Stomach, revealing staining of cells at the base of the crypts of the pyloric glands. (E, F) Salivary gland, demonstrating strong positive staining of serous acinar cells. (G, H) Adrenal gland, showing positive cells in the zona reticularis. (I, J) Skin, indicating positive staining of cells in the neck of the sebaceous gland. (K, L) Testis, showing β-galactosidase–positive interstitial cells. Bars: 50 mm.