TRT and Sexual Function - Endocrinological Control
Introduction
Several hormones and neurotransmitters orchestrate men’s sexual response, including the appetitive (sexual desire) and consummative (arousal and penile erection) phases.
Aim
To provide an overview and recommendations regarding endocrinologic control of sexual desire and arousal and erection and their disturbances.
Methods
Medical literature was reviewed by the subcommittee of the International Consultation of Sexual Medicine, followed by extensive internal discussion, and then public presentation and discussion with other experts. The role of pituitary (prolactin, oxytocin, growth hormone, and α-melanocyte-stimulating hormone), thyroid, and testicular hormones was scrutinized and discussed.
Main Outcome Measures
Recommendations were based on grading of evidence-based medical literature, followed by interactive discussion.
Results
Testosterone has a primary role in controlling and synchronizing male sexual desire and arousal, acting at multiple levels. Accordingly, meta-analysis indicates that testosterone therapy for hypogonadal individuals can improve low desire and erectile dysfunction. Hyperprolactinemia is associated with low desire that can be successfully corrected by appropriate treatments. Oxytocin and α-melanocyte-stimulating hormone are important in eliciting sexual arousal; however, use of these peptides, or their analogs, for stimulating sexual arousal is still under investigation. Evaluation and treatment of other endocrine disorders are suggested only in selected cases.
Conclusion
Endocrine abnormalities are common in patients with sexual dysfunction. Their identification and treatment is strongly encouraged in disturbances of sexual desire and arousal.
https://www.sciencedirect.com/science/article/abs/pii/S1743609516000849
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