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Androgen environment and beta-glucuronidase activity in the human kidney
J J Corrales-Hernández1, J M González-Buitrago, I Pastor-Encinas
1Departamento de Medicina, Hospital Clínico Universitario, Salamanca, Spain.
Archives of Andrology
|January 1, 1988
Summary
Basal beta-glucuronidase activity in human kidney cytosol shows no sexual dimorphism. Enzyme levels are not directly controlled by circulating testosterone or androstenedione levels in either sex.
Area of Science:
- Biochemistry
- Urology
- Endocrinology
Background:
- Beta-glucuronidase is an enzyme found in the renal cortex.
- Androgens are key hormones influencing various physiological processes.
- Understanding the regulation of beta-glucuronidase by androgens is important for renal physiology.
Purpose of the Study:
- To investigate basal beta-glucuronidase activity in human renal cortex cytosol.
- To correlate enzyme activity with circulating androgen levels and androgen receptor content.
- To determine if sexual dimorphism exists in renal beta-glucuronidase activity.
Main Methods:
- Measurement of basal beta-glucuronidase activity in renal cortex cytosol from men and women.
- Correlation analysis with circulating testosterone, androstenedione, and dehydroepiandrosterone-sulphate (DHEA-S) levels.
- Assessment of cytoplasmic androgen receptor content.
Main Results:
- Beta-glucuronidase activity was similar in both sexes, despite higher testosterone in men.
- Enzyme activity did not correlate with circulating testosterone or androstenedione.
- In men, androgen receptor content and DHEA-S levels showed an inverse correlation with beta-glucuronidase activity.
Conclusions:
- No evidence of sexual dimorphism in basal beta-glucuronidase activity in human kidney cytosol.
- Circulating androgen levels do not appear to directly control renal beta-glucuronidase activity.
- Specific inverse correlations were observed in men, suggesting potential sex-specific regulatory mechanisms.