PEDIATRICS Vol. 97 No. 3 March 1996, pp. 361-363
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Salivary Testosterone Levels in Male Adolescents With Cystic Fibrosis

Steven R. Boas MD1, Deborah A. Cleary 1, Peter A. Lee MD1, and David M. Orenstein MD1

1 The Department of Pediatrics, University of Pittsburgh, Children's Hospital of Pittsburgh.

Purpose. Salivary testosterone concentrations have been used for monitoring testosterone levels in male adolescents and have been found to correlate closely with serum values. Data are lacking on such measurements in male adolescents with cystic fibrosis (CF), in which salivary gland abnormalities are commonly seen. Delayed sexual maturation occurs in many patients with CF, particularly those with severe disease. We examined the usefulness of salivary testosterone collection and measurement in male adolescents with CF.

Methods. Forty boys with CF and 35 healthy control boys participated in the study. All boys were Tanner staged and had serum and salivary testosterone concentrations measured. Testosterone assays were performed using standard radioimmunoassay techniques.

Results. The boys with CF were slightly older, lighter in body weight, and shorter. Serum and salivary testosterone concentrations were lower in the CF group than in the control group. A significant correlation was found between serum and salivary testosterone levels for boys with CF (r = .84) and for the control boys (r .86). Mean salivary testosterone increased as age progressed and as Tanner stage advanced.

Conclusions. These results demonstrate that salivary testosterone measurements correlate well with serum values in male adolescents with CF and can be used in the monitoring of pubertal status.

Key Words: salivary testosterone • cystic fibrosis • sexual maturation • puberty

Submitted on October 20, 1994
Accepted on March 29, 1995




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