Changes in host immune–endocrine relationships during tuberculosis treatment in patients with cured and failed treatment outcomes

Kleynhans, Leanie ; Ruzive, Sheena ; Ehlers, Lizaan ; Thiart, Lani ; Chegou, Novel N. ; Conradie, Magda ; Kriel, Magdalena ; Kim Stanley ; Van Der Spuy, Gian D. ; Kidd, Martin ; Van Helden ; Walzl, Gerhard ; Ronacher, Katharina (2017)

CITATION: Kleynhans, L., et al. 2017. Changes in host immune–endocrine relationships during tuberculosis treatment in patients with cured and failed treatment outcomes. Frontiers in Immunology, 8:690, doi:10.3389/fimmu.2017.00690.

The original publication is available at http://journal.frontiersin.org

Publication of this article was funded by the Stellenbosch University Open Access Fund.

Article

A bidirectional communication between the immune and endocrine systems exists and facilitates optimum responses in the host during infections. This is in part achieved through changes in secretion patterns of hypothalamic hormones induced by inflammatory cytokines. The aim of this study was to elucidate the immune–endocrine alterations during tuberculosis (TB) treatment in patients with cured and failed TB treatment outcomes. Blood samples were collected from 27 cured and 10 failed patients and hormone as well as cytokine concentrations quantified at baseline, week 4, and month 6 of TB treatment. Hormone profiles of the two treatment outcome groups were different from each other prior to as well as during TB treatment. Treatment response effects were observed for cortisol, estradiol, T3, T4 ghrelin, leptin, amylin, adiponectin, and dehydroepiandrosterone (DHEA). Trends suggest that T4, amylin, and DHEA concentrations were different between treatment outcomes, although these did not reach statistical significance. Relationships between endocrine and inflammatory markers and the biological pathways involved differed between cured and failed treatment patients. These results highlight the complex interaction between the endocrine and immune system during active TB disease and throughout treatment and suggest that endocrine markers in conjunction with inflammatory markers may be useful in predicting unfavorable treatment outcomes.

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