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. 2012 Feb 16;7(2):e29675. doi: 10.1371/journal.pone.0029675

Table 3. Correlations among oxidative stress markers, cytokines, and Lp-PLA2 activity in the circulation and in PBMCs according to menopausal status.

Premenopausal women (n = 96) Postmenopausal women (n = 80)
Plasmaox-LDL Plasma Lp-PLA2 activity Nonstimulated PBMC Lp-PLA2 Plasma ox-LDL Plasma Lp-PLA2 activity Nonstimulated PBMC Lp-PLA2
r0 r1 r0 r1 r0 r1 r0 r1 r0 r1 r0 r1
Plasma ox- LDL(U/L) - - 0.244* 0.247* 0.022 0.006 - - 0.390*** 0.394** 0.215 0.154
Serum IL-6 (pg/mL) 0.042 0.051 −0.150 −0.154 −0.020 −0.032 0.171 0.143 0.022 0.016 0.019 −0.017
Serum TNF-α (pg/mL) −0.037 −0.016 −0.178 −0.202 0.101 0.068 0.090 0.031 −0.022 −0.018 0.030 −0.008
Serum IL-1ß (pg/mL) −0.018 −0.020 0.042 0.033 0.073 0.042 −0.061 −0.062 −0.050 −0.046 −0.022 −0.048
Lp-PLA2 activity (nmol/mL/min) 0.244* 0.247* - - 0.427*** 0.422*** 0.390*** 0.394** - - 0.380** 0.374**
Nonstimulated PBMCs
IL-6 (pg/mL) 0.058 0.042 0.326** 0.318** 0.363*** 0.353** 0.230* 0.222 0.051 0.073 0.127 0.121
TNF-α (pg/mL) 0.106 0.072 0.209* 0.202 0.205* 0.198 0.308** 0.307** 0.171 0.208 0.032 0.022
IL-1ß (pg/mL) 0.056 0.035 0.277** 0.269** 0.272** 0.255* 0.304** 0.301** 0.220 0.251* 0.080 0.067
Lp-PLA2 activity (nmol/mL/min) 0.022 0.006 0.427*** 0.422*** - - 0.215 0.154 0.380** 0.374** - -

Pearson and partial correlation analysis, r0: unadjusted, r1: adjusted for age, BMI, and alcohol consumption,

*P<0.05,

**P<0.01,

***P<0.001,

tested by log-transformed.