Abstract
Summary
Rat thyroid gland and spleen contain levels of α and β-D galactosidases which show no significant sex-linked differences. We have no satisfactory explanation for the discrepancy in results from those of others, except that the parathyroid glands. very active for the two galactosidases, are closely related to the thyroid. It is suggested that careful dissection may be required to avoid inadvertent dilution or enrichment of enzyme source by adjacent anatomic structures. The quantitative data reported herein confirm previous histochemical observations of intense reactivity of rat thyroid gland for α- and β-D galactosidases. The differences in values obtained for spleen may reflect variations in numbers of heterophiles and mega-karyocytes which showed high α-D and β-D galactosidase activity by histochemical technics.
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