Hyperestrogenemia in neuromuscular diseases

Area of Science:

• Endocrinology
• Neurology
• Human Physiology

Background:

• The relationship between gonadal hormones and neuromuscular diseases is not fully understood.
• Previous research has not extensively explored hormonal profiles in various male neuromuscular disorders.

Purpose of the Study:

• To investigate the association between specific neuromuscular diseases and serum sex hormone levels in euthyroid males.
• To compare hormone levels in patients with Kennedy-Alter-Sung disease, Kugelberg-Welander disease, amyotrophic lateral sclerosis, and Duchenne muscular dystrophy against age-matched controls.

Main Methods:

• Serum samples were collected from male patients diagnosed with specific neuromuscular diseases and age-matched healthy male controls.
• Levels of serum estrogens (estrone), testosterone, luteinizing hormone (LH), and follicle-stimulating hormone (FSH) were measured.
• Patients were confirmed to be euthyroid and free from overweight, liver, or glandular abnormalities.

Main Results:

• All patient groups exhibited significantly higher baseline serum estrone levels compared to controls.
• Serum testosterone, LH, and FSH levels were generally within normal ranges across patient groups.
• A notable exception was lower FSH levels observed specifically in patients with Duchenne muscular dystrophy.

Conclusions:

• Elevated serum estrone levels are a common finding in these male neuromuscular diseases.
• The increased estrone is presumed to stem from enhanced peripheral conversion of androgens to estrogens.
• This hormonal imbalance may play a role in the pathophysiology of these neuromuscular conditions.