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Adrenal dysregulation in amyotrophic lateral sclerosis
F R Patacchioli1, P Monnazzi, A Scontrini
1Dipartimento di Fisiologia Umana e Farmacologia V. Erspamer, Roma, Italy. francesca.patacchioli@uniroma1.it
Journal of Endocrinological Investigation
|April 2, 2004
Summary
Amyotrophic lateral sclerosis (ALS) patients exhibit disrupted cortisol patterns, including a loss of circadian rhythm and blunted stress response, indicating adrenal dysregulation in this neurodegenerative disease.
Area of Science:
- Neurology
- Endocrinology
- Neuroscience
Background:
- Amyotrophic lateral sclerosis (ALS) is a progressive neuromuscular disorder affecting motor neurons.
- The impact of ALS on adrenal function and cortisol regulation remains largely uncharacterized.
- Understanding adrenal function in ALS is crucial for comprehensive patient care.
Purpose of the Study:
- To investigate salivary cortisol levels in patients with ALS compared to healthy controls.
- To assess the circadian rhythm of cortisol in ALS patients.
- To evaluate the adrenal response to acute stress in ALS.
Main Methods:
- Salivary cortisol levels were measured in ALS patients and healthy controls.
- Cortisol levels were assessed across different times of day to evaluate circadian rhythm.
- A color-word Stroop test was used to induce mild stress and measure cortisol response.
Main Results:
- ALS patients demonstrated a loss of the normal circadian rhythm of cortisol.
- Evening salivary cortisol levels were significantly elevated in ALS patients.
- ALS patients showed a diminished cortisol increase in response to the stress test.
Conclusions:
- Adrenal activity is dysregulated in amyotrophic lateral sclerosis.
- The findings suggest an altered HPA axis function in ALS.
- Further research into adrenal dysfunction in ALS is warranted.