Table 2.

Clinical studies of circulating RBP4 levels

Subjects	Major findings	References
Obese and T2DM subjects	Elevated in subjects with T2DM	Yang et al., (2005) 66
IGT and T2DM subjects	Correlation with the magnitude of IR	Graham et al., (2006) 67
IGT and T2DM subjects	Elevated in subjects with IGT or T2DM than normal glucose tolerance	Cho et al., (2006) 68
Caucasian menopausal women	No correlation with adiposity	Janke et al., (2006) 72
Japanese subjects	No correlation with BMI	Takashima et al., (2006) 168
IGT and T2DM subjects	No correlation with IR	Erikstrup et al., (2006) 169
Chinese subjects	Correlation with the components of MS	Qi et al., (2007) 69
Healthy women	Associated with visceral fat	Lee et al., (2007) 70
Chinese subjects	Correlation with visceral adiposity	Jia et al., (2007) 71
Non diabetic person	No correlation with IR	Yao-Borengasser et al., (2007) 73
Subjects with BMI from 18 to 30	Negative correlation with insulin sensitivity	Gavi et al., (2007) 74
Caucasian without T2DM	Associated with liver fat	Stefan et al., (2007) 76
Nondiabetic individuals	Reflected ectopic fat accumulation	Perseghin et al., (2007) 77
Obese children	Associated positively with CRP	Balagopal et al., (2007) 170
Subjects with morbid obesity	Reduction after weight loss	Haider et al., (2007) 171
Obese women	Reduction after weight loss	Vitkova et al., (2007) 172
Patients with T2DM	Associated with IR	Takebayashi et al., (2007) 173
Women with polycystic ovary syndrome	Elevated than BMI-matched subjects	Tan et al., (2007) 174
Nondiabetic men	Negatively associated with insulin secretion	Broch et al., (2007) 175
Patients with chronic liver disease	Decreased compared with control subjects	Yagmur et al., (2007) 176
Patients with T2DM or CVD	Associated with pro-atherogenic lipoprotein levels	von Eynatten et al., (2007) 177