SERUM METABOLOMIC PATTERNS IN PATIENTS WITH AUTOIMMUNE THYROID DISEASE

Area of Science:

• Endocrinology
• Metabolomics
• Autoimmune Diseases

Background:

• Autoimmune thyroid diseases, Graves disease (GD) and Hashimoto thyroiditis (HT), are common endocrine disorders.
• GD causes hyperthyroidism, while HT causes hypothyroidism, significantly impacting patient health.
• Understanding the metabolic alterations in these conditions is crucial for diagnosis and management.

Purpose of the Study:

• To conduct a comprehensive serum metabolomic analysis of patients with GD and HT.
• To identify distinct metabolic profiles associated with hyperthyroidism and hypothyroidism.
• To elucidate the specific metabolic pathways affected by these autoimmune thyroid conditions.

Main Methods:

• Serum samples from 43 GD patients, 45 HT patients, and 52 healthy controls were analyzed.
• 186 metabolites, including amino acids, bile acids, free fatty acids, and lipids, were quantified.
• Multivariate statistical analysis, including partial least squares discriminant analysis (PLS-DA), was employed.

Main Results:

• Significant differences in serum metabolomic profiles were observed across hyperthyroidism, hypothyroidism, and control groups.
• 22 metabolites were significantly altered in hyperthyroidism and 17 in hypothyroidism compared to controls.
• Hyperthyroidism was linked to altered arginine/proline metabolism and aminoacyl-tRNA biosynthesis; hypothyroidism to alanine, aspartate, and glutamate metabolism.

Conclusions:

• Serum metabolomic patterns are significantly altered in patients with autoimmune thyroid dysfunction.
• Distinct metabolic signatures differentiate hyperthyroidism (GD) from hypothyroidism (HT).
• Metabolomic analysis provides insights into the biochemical pathways affected by autoimmune thyroid diseases.