Objectives To determine thechange of plasma leptin levels and the correlation be-tween hyperleptinaemia and insulin resistance orTNF -α in patients with congestive heart failure(CHF). Methods The levels of plasma lep...Objectives To determine thechange of plasma leptin levels and the correlation be-tween hyperleptinaemia and insulin resistance orTNF -α in patients with congestive heart failure(CHF). Methods The levels of plasma leptin, fastingplasma insulin (FINS) and TNF-α in 64 male patientswith CHF and 30 healthy male people were measuredby ELISA. Body mass index (BMI), waist/hip ratio(WHR) and insulin resistance index (Homa-IR) werecalculated respectively. Results The plasma leptinlevels in CHF group were higher compared with con-trol group (P<0.00l). There was a increased trend ofplasma leptin levels in CHF group with the increaseof NYHA class (r_s=0.884, P<0.001), according to dif-ferent etiology,there was no significant difference ofplasma leptin levels in CHF group (P>0.05); FINS,Homa-IR and TNF-α levels in CHF group were high-er than in control group (all P<0.001); in CHF groupplasma leptin levels correlated with FINS (r=0.652, P<0.001),Homa-IR (r=0.561,P<0.001) and TNF-α (r=0.629,P<0.001); in multiple stepwise regression anal-ysis BMI, FINS and TNF-α were isolated factors af-fecting plasma leptin levels in CHF group, Y=-3.466+0.456 (BMI)+ 0.162 (FINS)+4.487(TNF-α), F=38.405,P<0.001. Conclusions plasma leptin levels wereraised and correlated with disease severity in patientswith CHF; FINS and TNF-α were isolated factor af-fecting plasma leptin level in CHF patients; hyper-leptinaemia may play a role in the pathophysiology ofCHF such as catabolic process and activation of neu-rohormonal.展开更多
文摘Objectives To determine thechange of plasma leptin levels and the correlation be-tween hyperleptinaemia and insulin resistance orTNF -α in patients with congestive heart failure(CHF). Methods The levels of plasma leptin, fastingplasma insulin (FINS) and TNF-α in 64 male patientswith CHF and 30 healthy male people were measuredby ELISA. Body mass index (BMI), waist/hip ratio(WHR) and insulin resistance index (Homa-IR) werecalculated respectively. Results The plasma leptinlevels in CHF group were higher compared with con-trol group (P<0.00l). There was a increased trend ofplasma leptin levels in CHF group with the increaseof NYHA class (r_s=0.884, P<0.001), according to dif-ferent etiology,there was no significant difference ofplasma leptin levels in CHF group (P>0.05); FINS,Homa-IR and TNF-α levels in CHF group were high-er than in control group (all P<0.001); in CHF groupplasma leptin levels correlated with FINS (r=0.652, P<0.001),Homa-IR (r=0.561,P<0.001) and TNF-α (r=0.629,P<0.001); in multiple stepwise regression anal-ysis BMI, FINS and TNF-α were isolated factors af-fecting plasma leptin levels in CHF group, Y=-3.466+0.456 (BMI)+ 0.162 (FINS)+4.487(TNF-α), F=38.405,P<0.001. Conclusions plasma leptin levels wereraised and correlated with disease severity in patientswith CHF; FINS and TNF-α were isolated factor af-fecting plasma leptin level in CHF patients; hyper-leptinaemia may play a role in the pathophysiology ofCHF such as catabolic process and activation of neu-rohormonal.
