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Testicular dysfunction in adrenomyeloneuropathy
W Brennemann1, W Köhler, S Zierz
1Department of Clinical Biochemistry, University of Bonn, Germany.
European Journal of Endocrinology
|July 1, 1997
Summary
Adrenomyeloneuropathy (AMN) frequently causes testicular dysfunction in men, impacting Leydig and Sertoli cells. This study reveals widespread gonadal impairment in AMN patients, suggesting a broader disease spectrum.
Area of Science:
- Endocrinology
- Genetics
- Neurology
Background:
- Adrenomyeloneuropathy (AMN) is a peroxisomal disorder affecting the nervous and endocrine systems, particularly the adrenal cortex and gonads.
- AMN is caused by a disturbance in the beta-oxidation of saturated very long chain fatty acids.
Purpose of the Study:
- To investigate testicular function in male Adrenomyeloneuropathy patients.
- To determine the frequency and degree of gonadal impairment in AMN.
Main Methods:
- Assessed testicular function in 49 male AMN patients.
- Measured serum levels of LH, FSH, testosterone, free testosterone, and inhibin-B.
- Compared hormone levels with healthy controls.
Main Results:
- Elevated LH and FSH levels in 63.3% and 57.1% of patients, respectively, indicating deficient spermatogenesis.
- Significantly lower free testosterone and testosterone/LH ratio in AMN patients.
- Impairment of Leydig and/or Sertoli cells observed in 81.6% of patients; 53.8% reported erectile dysfunction.
Conclusions:
- Endocrine dysfunction in AMN extends beyond the adrenal cortex to frequently involve testicular functions.
- The findings support renaming the condition 'adreno-testiculo-myelo-neuropathy' due to the significant gonadal involvement.