NEUROENDOCRINE MECHANISMS OF COMORBIDITY BETWEEN ANXIETY-DEPRESSIVE DISORDERS AND HYPOTHYROIDISM

Authors

  • MAGZUMOVA Shakhnoza
  • VOSIQOV Botirbek Abdullaziz o‘g‘li

Keywords:

hypothyroidism; depression; anxiety disorder; neuroendocrine comorbidity; thyroid hormones; autoimmune thyroiditis

Abstract

This review explores the neuroendocrine mechanisms underlying the comorbidity of anxiety and depressive disorders with hypothyroidism. It summarizes current data on the impact of thyroid dysfunction on the central nervous system, including the interaction of thyroid hormones with neurotransmitter systems and the stress axis, as well as the role of autoimmune inflammation. Epidemiological studies confirming an increased risk of affective disorders in hypothyroidism, particularly in its manifest form, are presented. The phenomenon of "sickness behavior" is discussed as an adaptive response to hormonal deficiency. Key pathogenic pathways are outlined, explaining how thyroid hormone deficiency and accompanying immune alterations can contribute to the development of depression and anxiety. The conclusion emphasizes the multifactorial nature of this comorbidity and the necessity of an interdisciplinary approach to its understanding.

References

Bode H, Ivens B, Bschor T, Schwarzer G, Henssler J, Baethge C. Association of Hypothyroidism and Clinical Depression: A Systematic Review and Meta-analysis. JAMA Psychiatry 2021;78:1375. https://doi.org/10.1001/jamapsychiatry.2021.2506.

Hage MP, Azar ST. The Link between Thyroid Function and Depression. Journal of Thyroid Research 2012;2012:1–8. https://doi.org/10.1155/2012/590648.

Nuguru SP, Rachakonda S, Sripathi S, Khan MI, Patel N, Meda RT, et al. Hypothyroidism and Depression: A Narrative Review. Cureus 2022;14. https://doi.org/10.7759/cureus.28201.

Siegmann E-M, Müller HHO, Luecke C, Philipsen A, Kornhuber J, Grömer TW. Association of Depression and Anxiety Disorders With Autoimmune Thyroiditis: A Systematic Review and Meta-analysis. JAMA Psychiatry 2018;75:577–84. https://doi.org/10.1001/jamapsychiatry.2018.0190.

Tesfaye E, Getnet M, Anmut Bitew D, Adugna DG, Maru L. Brain functional connectivity in hyperthyroid patients: systematic review. Front Neurosci 2024;18. https://doi.org/10.3389/fnins.2024.1383355.

Zhou Y, Ma Y, Wu Q, Wang Q, Yang WFZ, Wang Y, et al. Comparison of Thyroid Hormone Levels Between Patients With Major Depressive Disorder and Healthy Individuals in China. Front Psychiatry 2021;12:750749. https://doi.org/10.3389/fpsyt.2021.750749.

Tang R, Wang J, Yang L, Ding X, Zhong Y, Pan J, et al. Subclinical Hypothyroidism and Depression: A Systematic Review and Meta-Analysis. Frontiers in Endocrinology 2019;10:340. https://doi.org/10.3389/fendo.2019.00340.

Bauer M, Silverman DHS, Schlagenhauf F, London ED, Geist CL, van Herle K, et al. Brain Glucose Metabolism in Hypothyroidism: A Positron Emission Tomography Study before and after Thyroid Hormone Replacement Therapy. J Clin Endocrinol Metab 2009;94:2922–9. https://doi.org/10.1210/jc.2008-2235.

Krausz Y, Freedman N, Lester H, Newman JP, Barkai G, Bocher M, et al. Regional Cerebral Blood Flow in Patients with Mild Hypothyroidism. Journal of Nuclear Medicine 2004;45:1712–5.

Morin AK. Triiodothyronine (T3) supplementation in major depressive disorder. Mental Health Clinician 2015;5:253–9. https://doi.org/10.9740/mhc.2015.11.253.

Touma KT, Zoucha AM, Scarff JR. Liothyronine for Depression: A Review and Guidance for Safety Monitoring. Innovations in Clinical Neuroscience 2017;14:24.

Smith SM, Vale WW. The role of the hypothalamic-pituitary-adrenal axis in neuroendocrine responses to stress. Dialogues in Clinical Neuroscience 2006;8:383. https://doi.org/10.31887/DCNS.2006.8.4/ssmith.

Kaur J, Jialal I. Hashimoto Thyroiditis. StatPearls [Internet], StatPearls Publishing; 2025.

Hashimotos’ thyroiditis: Epidemiology, pathogenesis, clinic and therapy. Best Practice & Research Clinical Endocrinology & Metabolism 2019;33:101367. https://doi.org/10.1016/j.beem.2019.101367.

Cytokines and major depression. Progress in Neuro-Psychopharmacology and Biological Psychiatry 2005;29:201–17. https://doi.org/10.1016/j.pnpbp.2004.11.003.

Dantzer R, O’Connor JC, Freund GG, Johnson RW, Kelley KW. From inflammation to sickness and depression: when the immune system subjugates the brain. Nat Rev Neurosci 2008;9:46–56. https://doi.org/10.1038/nrn2297.

Antithyroid antibodies in depressed patients. American Journal of Psychiatry 2006. https://doi.org/10.1176/ajp.142.7.840.

Maes M, Berk M, Goehler L, Song C, Anderson G, Gałecki P, et al. Depression and sickness behavior are Janus-faced responses to shared inflammatory pathways. BMC Med 2012;10:1–19. https://doi.org/10.1186/1741-7015-10-66.

Das BK, Baral N, Shyangwa P, Toora BD, Lamsal M. Altered serum levels of thyroxine, triiodothyroinine and thyroid stimulating hormone in patients with depression. Kathmandu University Medical Journal 2007.

Published

2025-11-03