Alkaline phosphatase in craniopharyngiomas
β Scribed by W. R. Timperley; P. Turner; S. Davies
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 635 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0022-3417
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β¦ Synopsis
Abstract
THE derivation of the epithelium from which craniopharyngiomas arise is in doubt. Willis (1953) and Russell and Rubinstein (1959) state that these tumours are not distinguishable from βepitheliomasβ in which squamous and basal cells are both present. Timperley (1968__a__), in a histochemical investigation, showed that craniopharyngiomas differed from squamous epithelium and epidermal cyst epithelium in that they contained a high activity of alkaline phosphatase and in this respect they closely resembled the ameloblastoma of the jaw and the developing tooth bud. The present paper is a histochemical and chemical analysis comparing several more craniopharyngiomas with dental and dentigerous cysts.
π SIMILAR VOLUMES
Alkaline phosphatase was extracted from 5 meningiomas, and several of its biochemical properties were compared with alkaline phosphatase from normal serum a n d extracts of small intestine. T h e meningioma phosphatases behaved in a reasonably homogeneous manner. They were virtually uninhibited by 0