Clinical significances of serum lipoprotein, high sensitivity C-reactive protein, cystatin C, apolipoprotein in type 2 diabetic patients with early renal impairment / 中华老年医学杂志

ABSTRACT

Objective To study the clinical significances of serum lipoprotein (LP),high sensitivity C- reactive protein (hs CRP),cystatin (Cys-C),apolipoprotein (Apo) in type 2 diabetic mellitus (T2DM) patients with early renal impairment.Methods Totally 96 patients were divided into two groups50 cases in simple diabetic group (DM) aged 60-73 years,46 cases in diabetic nephropathy group (DN) aged 61-72 years,and 50 healthy persons as normal control group aged 61-68 years.Serum levels of LP(a),hs-CRP,Cys-C,ApoA1 and ApoB were detected.Results Serum levels of LP (a) [(214.8±182.3) mg/L vs.(113.1±76.2) mg/L],Cys-C[(0.95±0.16)mg/L vs.(0.46±0.17) mg/L],hs-CRP (2.57± 1.84) mg/L vs.(1.07±0.38)mg/L] and ApoB [(1.12±0.18) g/L vs.(0.81 ±0.15) g/L ]were higher in T2DM patients than in normal control group(all P＜0.01),while ApoA1 level was lower than in control[(1.02±0.17)g/L vs.(1.27±0.14)g/L,P＜ 0.01].The levels of LP (a) (455.6 ± 263.5 ) mg/L,Cys-C (2.14 ± 0.68 ) mg/L,hs-CRP (7.24±4.55)mg/L and ApoB(1.22±0.17)g/L in DN group were increased compared with DM group (all P＜0.01).Serum levels of ApoA1 were decreased in DN group compared with DM group [(0.88±0.17) g/L vs.(1.02±0.17) g/L,P＜0.01].The serum levels of LP (a) (r=0.487,P＜0.05),Cys-C(r=0.55,P＜0.05),hs-CRP(r=0.478,P＜0.01) and ApoB(r=0.505,P＜0.05) were positively correlated with urinary mAlb in T2DM patients,while ApoA1 was negtively related with mAIb(r=-0.52,P＜0.05).Conclusions The serum LP (a),Cys C,Apo and hsCRP could be sensitive markers of early renal impairment,and their combinatorial measurement offers more value in patients with T2DM.