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Testosterone metabolism in basal cell epitheliomas
The Journal of Investigative Dermatology
|December 1, 1978
Abstract:
In basal cell epitheliomas the testosterone metabolism pattern differs from that of the normal surrounding skin. There is a significant reduction in 5 alpha-reductase activity with a consequent decrease in production of dihydrotestosterone and androstanediols. By contrast the 17 beta-hydroxysteroid dehydrogenase activity shows no consistent change.
Insights
Basal cell epitheliomas show altered testosterone metabolism compared to normal skin. Key enzymes like 5 alpha-reductase are less active, reducing dihydrotestosterone and androstanediol production.
Area of Science:
- Biochemistry
- Dermatology
- Oncology
Background:
- Testosterone metabolism plays a role in skin physiology.
- Altered steroid metabolism may be implicated in skin carcinogenesis.
Purpose of the Study:
- To investigate the testosterone metabolism in basal cell epitheliomas.
- To compare steroid metabolism patterns between tumor tissue and normal skin.
Main Methods:
- Analysis of enzyme activity in tissue samples.
- Quantification of specific testosterone metabolites.
Main Results:
- Basal cell epitheliomas exhibit significantly reduced 5 alpha-reductase activity compared to normal skin.
- This reduction leads to decreased production of dihydrotestosterone and androstanediols.
- 17 beta-hydroxysteroid dehydrogenase activity remained unchanged in tumor tissues.
Conclusions:
- Testosterone metabolism is altered in basal cell epitheliomas, specifically involving decreased 5 alpha-reduction.
- These metabolic changes may contribute to the development or progression of basal cell epitheliomas.