Thyroid Function Trial Links Inflammation, Energy, and Depression via VCAM-1, CRP, BDNF, Orexin

Thyroid disorders, particularly thyrotoxicosis, often present with systemic symptoms beyond just metabolic dysregulation, including mood disturbances and inflammatory markers, even after biochemical normalization. Current standard-of-care primarily focuses on hormone regulation, frequently leaving patients with persistent issues like fatigue, mood changes, and subclinical inflammation. This study addresses a critical gap by investigating the intricate relationships between thyroid function and specific biomarkers of inflammation (VCAM-1, CRP), neuroplasticity (BDNF), and energy regulation (Orexin), alongside depressive symptoms. Understanding these connections could unveil novel therapeutic targets for comprehensive management of thyroid patients.

This is an observational clinical trial (NCT02886949) enrolling an estimated 500 human subjects presenting to an outpatient department with suspected thyroid disease. Participants will be evaluated for thyroid functions, and their associations with energy homeostasis and inflammation will be assessed over a 3-month timeframe. Primary outcome is brain-derived neurotrophic factor (BDNF) levels. Secondary outcomes include vascular cell adhesion molecule 1 (VCAM-1), C-reactive protein (CRP), Orexin levels, Zung Self-Rating Depression Scale (Zung SDS) scores, body composition, ankle brachial index (ABI), pulse wave velocity (PWV), and mean arterial pressure (MAP). Exclusion criteria include psychological disorders or severe inflammatory/infectious diseases, ensuring a focus on thyroid-related associations.

As an ongoing clinical trial (NCT02886949), specific results and quantitative findings are not yet available. This study is designed to establish correlations between various thyroid function states (e.g., hyperthyroidism, euthyroidism) and the measured biomarkers. Researchers aim to determine if thyroid dysfunction significantly impacts levels of BDNF, VCAM-1, CRP, and Orexin, and how these changes might relate to Zung SDS scores indicating depressive symptoms. They will also assess the influence of thyroid status on cardiovascular health markers like ABI, PWV, and MAP, and body composition. > The core objective is to quantify the associations between thyroid function and markers of inflammation, neuroplasticity, energy homeostasis, and depression, providing a comprehensive view of systemic impacts. The study seeks to identify statistically significant relationships (e.g., p-values, correlation coefficients) that could illuminate the mechanisms underlying the systemic manifestations of thyroid disease.