most studies have focussed on the regulation of the hypothalamic-pituitary-adrenal ( hpa ) axis but other endocrine systems such as the hypothalamic-pituitary-thyroid ( hpt ) , hypothalamic-pituitary-somatotropic ( hps ) , and the hypothalamic-pituitary-gonadal ( hpg ) axis have also been shown to be involved in the psychobiology of depression .
C0014136
endocrine systems
C0040132
thyroid