Int Neurourol J.  2019 Nov;23(Suppl 2):S63-S71. 10.5213/inj.1938226.113.

Inflammation as the Potential Basis in Depression

Affiliations
  • 1Department of Gerontology, Kyung Hee University Graduate School of East-West Medical Science, Yongin, Korea.
  • 2Department of Animal Science and Technology, Konkuk University, Seoul, Korea. hhong58@konkuk.ac.kr

Abstract

There is growing evidence of the association between inflammation and stress-related disorders including depression. The positive correlation between the increased levels of inflammatory cytokines observed in patients with other diseases and the byproduct of the depressive symptoms may be caused by chronic stress. Increased neuroinflammatory responses are capable of activating microglia and astrocytes, which leads to release pro-inflammatory cytokines. Moreover, elevated levels of inflammatory cytokines such as tumor necrosis factor-alpha, interleukin (IL)-1, and IL-6 are causally related to various aspects of depression such as the behavioral symptomatology. Eventually, these elevated cytokines aggravate and propagate neuroinflammation, impairing brain functions. Thus, activated astrocytes and microglia may be potential mediators in neuroinflammatory processes contributing to the development of depression.

Keyword

Inflammation; Depression; Inflammatory cytokines; Microglia; Astrocytes

MeSH Terms

Astrocytes
Brain
Cytokines
Depression*
Humans
Inflammation*
Interleukin-6
Interleukins
Microglia
Tumor Necrosis Factor-alpha
Cytokines
Interleukin-6
Interleukins
Tumor Necrosis Factor-alpha
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