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Testosterone in human saliva

A D Landman, L M Sanford, B E Howland

|January 1, 1976

Summary

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Saliva contains testosterone in adults, with higher levels in males than females. This hormone in adult males exhibits a daily cycle, following a circadian rhythm.

Area of Science:

Endocrinology
Human Physiology

Background:

Testosterone is a key androgen hormone.
Salivary hormone analysis offers a non-invasive method for assessing endocrine status.

Purpose of the Study:

To determine the presence and levels of testosterone in human saliva.
To investigate potential differences in salivary testosterone between adult males and females.
To explore the diurnal variation of salivary testosterone in adult males.

Main Methods:

Detection of testosterone in whole human saliva samples.
Quantification of testosterone levels using established assays.
Analysis of salivary samples across different time points to assess circadian patterns.

Main Results:

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Testosterone was successfully detected in whole human saliva.
Average salivary testosterone levels were 295 +/- 36 pg/ml in adult males and 195 +/- 25 pg/ml in adult females.
Testosterone levels were typically undetectable in children.
Salivary testosterone excretion in adult males demonstrated a circadian rhythm.

Conclusions:

Human saliva is a viable medium for measuring testosterone.
Significant differences in salivary testosterone exist between adult males and females.
Circadian fluctuations of testosterone are observable in adult male saliva, indicating its potential for monitoring hormonal patterns.