Synopsis
The addition of sodium chloride (O.IM final concentration) to the indigogenic medium described by Lojda for the detection of β-galactosidase activity considerably increases the intensity of the reaction in unfixed cryostat sections.
The improved method has been applied to normal tissues, and to tissues from patients with G Mi -gangliosidosis and two forms of mucopolysaccharidosis. Marked deficiency of β-galactosidase activity was shown in G Mi -gangliosidosis and a milder deficiency was found in the mucopolysaccharidoses. The method has also been applied to blood films, fibroblasts and amniotic fluid cells.
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Lake, B.D. An improved method for the detection of β-galactosidase activity, and its application to G Mi -gangliosidosis and mucopolysaccharidosis. Histochem J 6, 211–218 (1974). https://doi.org/10.1007/BF01011808
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DOI: https://doi.org/10.1007/BF01011808