Fig. 1

Plasma CD3, CD4, CD8 and Lp (a) levels between male and female or anhedonia and non-anhedonia patients with unipolar and bipolar depression. Plasma levels of CD3 (a, t = -2.354, P = 0.022), CD4 (b, t = -2.213, P = 0.031), CD8 (c, t = -2.142, P = 0.038) and Lp (a) (d, t = -3.013, P = 0.009) in the anhedonia group were significantly higher than the non-anhedonia group in male patients with unipolar and bipolar depression. ** P ≤ 0.01; * P ≤ 0.05. Abbreviation: Lp (a), lipoprotein(a)