Research Article

Monocyte Proteomics Reveals Involvement of Phosphorylated HSP27 in the Pathogenesis of Osteoporosis

Table 1

Baseline traits and BMD measurements of participants (iTRAQ and validation groups).

ParameterPremenopausal womenPostmenopausal women
Low BMD ()High BMD () valueLow BMD ()High BMD () value

iTRAQ group
Age (years)36.1 ± 1.236 ± 1.1ns55.7 ± 1.1 53.8 ± 0.8ns
BMI (Kg/m2)24.7 ± 0.926.3 ± 0.6ns26.3 ± 0.828.5 ± 1.1ns
BMD at hip (g/cm2)0.796 ± 0.021.07 ± 0.01<0.00010.699 ± 0.021.008 ± 0.02<0.0001
BMD at spine (g/cm2)0.980 ± 0.051.247 ± 0.03<0.00010.796 ± 0.031.154 ± 0.02<0.0001
score hip−1.5 ± 0.130.76 ± 0.09<0.0001−2.33 ± 0.140.23 ± 0.17<0.0001
score spine−1.66 ± 0.120.57 ± 0.24<0.0001−3.2 ± 0.22−0.16 ± 0.18<0.0001
OPP/OP/NOP = 10OPP = 9, OP = 1

Validation group
Age (years)35.7 ± 0.834.8 ± 1.2ns54.2 ± 0.953.6 ± 0.9ns
BMI (Kg/m2)23.8 ± 0.925.6 ± 1.2ns24.9 ± 0.925.3 ± 0.5ns
BMD at hip (g/cm2)0.805 ± 0.011.075 ± 0.02<0.00010.707 ± 0.021.053 ± 0.02<0.0001
BMD at spine (g/cm2)1.063 ± 0.041.219 ± 0.030.00290.840 ± 0.021.189 ± 0.03<0.0001
score hip−1.5 ± 0.110.79 ± 0.16<0.0001−2.21 ± 0.220.61 ± 0.15<0.0001
score spine−0.97 ± 0.240.31 ± 0.230.0033−2.84 ± 0.200.08 ± 0.23<0.0001
OPP/OP/NOP = 10OPP = 8, OP = 2

Values are mean ± SEM, ns is not significant, BMD is Bone Mineral Density, BMI is Body Mass Index, OPP stands for osteoporosis, OP stands for osteopenia, and N stands for normal.