新诊断老年2型糖尿病患者血清脂肪细胞型脂肪酸结合蛋白水平及意义

目的观察新诊断老年2型糖尿病(T2DM)患者血清脂肪细胞型脂肪酸结合蛋白(A-FABP)水平的变化及意义。方法通过比较72例新诊断T2DM患者与30例健康体检者(正常对照组)血糖、血脂、胰岛素抵抗指数(HOMA-IR)、胰岛β细胞功能指数(HOMA-β)及A-FABP等方面的差异,并分析A-FABP与血糖、血脂、HOMA-IR、HOMA-β的相关性。结果老年T2DM组体重指数(BMI)、空腹血糖(FPG)、餐后血糖(PPG)、糖化血红蛋白(Hb A1c)、总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、HOMA-IR和A-FABP显著高于正常对照组(P<0.05),而HOMA-β和高密度脂蛋白胆固醇(HDL-C)低于正常对照组(P<0.05),Pearson相关分析显示T2DM患者血清A-FABP与Hb A1c、PPG、TC、TG以及HOMA-IR呈正相关。结论老年T2DM患者血清A-FABP水平升高与胰岛素敏感性下降、糖脂代谢紊乱加重密切相关。     

2型糖尿病患者铁代谢与胰岛功能的相关性分析

目的探讨2型糖尿病患者铁代谢与胰岛功能的关系。方法随机选取2018年1月—2020年1月时间段该门诊收治的75例2型糖尿病患者作为该次研究主体,将其纳入治疗组,并根据患者病程长短,将其分为A组(病程1年)、B组(病程1～10年)及C组(病程10年),分别为24例,25例及26例,选取同期健康体检者75名作为对照组,检测治疗组与对照组的体质指数(BMI)、血红蛋白(Hb)、总胆固醇(TC)、血清低密度脂蛋白-胆固醇(LDL-C)、三酰甘油(TG)、血清铁蛋白、空腹胰岛素、空腹C肽水平,计算其胰岛素抵抗指数(HOMA-β及HOMA-IR),并将2组以上数据进行综合比较;对比A组、B组及C组空腹胰岛素、空腹C肽水平、胰岛素抵抗指数及血清铁蛋白水平,分析2型糖尿病患者病程长短铁代谢与胰岛功能的关系。结果两组TG、血清铁蛋白、空腹胰岛素、空腹C肽及HOMA-IR水平差异有统计学意义(P0.05);3组空腹胰岛素、空腹C肽、血清铁蛋白及HOMA-IR水平差异有统计学意义(P0.05);2型糖尿病患者血清铁蛋白水平与病程呈正相关,与空腹胰岛素、空腹C肽、HOMA-β及HOMA-IR呈负相关(P0.05)。结论 2型糖尿病患者的铁储备增加且和病程呈正相关,胰岛素及C肽与血清铁蛋白呈负相关,胰岛素抵抗指数与血清铁蛋白也呈负相关。铁负荷增加会导致胰岛素抵抗,加重糖尿病患者大血管病变。     

血清铁蛋白检测在2型糖尿病中的诊断价值

选取2014年2月-2016年2月期间我院诊治的T_2DM患者30例作为糖尿病足和同期身体健康人员30例作为对照组,分析糖尿病组患者中的SF与其他指标活性之间的相关性、SF的诊断价值分析并比较两组患者的SF、空腹胰岛素(FINS)、空腹C-肽(C-P)、空腹血糖(FPG)、血清总胆固醇(TC)、糖化血红蛋白(Hb A1C)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)和胰岛素抵抗指数(HOMA-IR)。然后与30例健康对照组进行比较,并分析其与各指标的相关关系。结果 糖尿病组患者的SF、FPG、FINS、C-P、Hb A1C、LDL-C、TG、TC、HOMA-IR高于对照组,HDL-C低于对照组,差异有统计学意义(P0.01);直线相关分析显示T2DM患者SF与FPG、HOM A-IR、Hb A1C呈正相关(P0.01);与FINS、TG无相关性(P0.05);与HDL-C呈负相关(P0.05);SFROC曲线显示SF对T_2DM具有一定的诊断价值。结论 SF不仅影响患者的糖脂代谢,而且造成胰岛素抵抗,是T2DM的危险因素。     

新诊断2型糖尿病患者血清铁蛋白与糖、脂代谢及胰岛功能的关系

目的 比较不同血清铁蛋白(SF)水平的新诊断2型糖尿病(T2DM)患者糖、脂代谢及胰岛功能,分析其与SF的关系.方法 以新诊断T2DM患者115例为观察对象,按SF浓度分为高SF组40例(SF≥274.66 μg/L)与正常SF组75例(21.80 μg/L≤SF< 274.66 μg/L).测量两组患者的身高、体重、腰围、臀围,检测空腹血糖、餐后2h血糖(2 hPG)、HbA1c、空腹胰岛素(FINS)、总胆固醇、甘油三酯、高密度脂蛋白-胆固醇(HDL-C)、低密度脂蛋白-胆固醇(LDL-C),计算体重指数、腰臀比、稳态模型评估-胰岛素抵抗指数(HOMA-IR)、稳态模型评估-胰岛β细胞功能指数(HOMA-β)、定量胰岛素敏感性指数(QUICKI)和处置指数,并进行Spearman相关性及多元线性回归分析.结果 高SF组体重指数、FINS、甘油三酯、HOMA-IR高于正常SF组(t=2.470、2.631、2.316、2.879,P均<0.05),HDL-C、QUICKI低于正常SF组(t=-2.030、-2.623,P均<0.05);SF水平与体重指数、腰臀比、空腹血糖、2 hPG、HOMA-IR、甘油三酯均呈正相关(r=0.191 ～0.303,P均<0.05),与HDL-C、QUICKI、处置指数呈负相关(r=-0.221、-0.261、-0.293,P均<0.05);多元线性回归分析显示体重指数、处置指数和甘油三酯是SF的独立相关因素(β=0.041、-0.443、0.270,P均<0.05).结论 高SF水平的新诊断T2DM患者其糖、脂代谢紊乱及胰岛素抵抗程度较正常SF的T2DM患者更严重,SF可能通过增加胰岛素抵抗,促进T2DM的发生和发展.     

老年2型糖尿病糖耐量受损患者血清铁蛋白水平及临床意义

目的探讨2型糖尿病糖耐量受损(T2DM-IGF)老年患者血清铁蛋白(SF)水平与胰岛素抵抗(IR)、胰岛β细胞功能之间的关系。方法观察2009年1月至2010年12月T2DM-IGT、患者98例为观察组;选择同期门诊体检者为对照组,比较两组的一般生化指标及T2DM-IGT患者血清SF与TRF的相关性。结果两组LDL-C和UA比较差异无统计学意义(P>0.05)。观察组患者的FPG、FINS、糖化血红蛋白、TG和HOMA-IR较对照组升高(P<0.05),HDL-C和HOMAβ细胞较对照组降低(P<0.05)。观察组血清SF和TRF浓度高于对照组(P<0.05)。T2DM-IGT患者血清SF与糖化血红蛋白、FINS及HOMA-IR呈正相关;与HOMAβ细胞呈负相关;与HDL-C、LDL-C和TG无相关性。T2DM-IGT患者血清TRF与FINS、TG及HOMA-IR呈正相关;与糖化血红蛋白、HDL-C、LDL-C和HOMAβ细胞无相关性。结论 T2DM-IGT患者血清SF、TRF与高血糖、IR和高血脂存在密切关系,说明机体铁代谢异常与T2DM-IGT的发生存在一定的联系。     

藏族2型糖尿病患者血清铁和铁蛋白的变化及其与胰岛素抵抗的相关性

目的了解高原地区藏族2型糖尿病(T2DM)患者血清铁及铁蛋白的水平及其与胰岛β细胞功能的关系。方法选取2013～2015年就诊于青海大学附属医院的初次就诊未经治疗的藏族T2DM及汉族T2DM患者各100例,同期来院体检的健康藏、汉族各100例。葡萄糖氧化酶法测定血糖,高压液相色谱分析法测定糖化血红蛋白(HbA 1c),化学发光法测定空腹胰岛素(FINS)、血清铁蛋白;生化法测定血清铁、三酰甘油(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)。计算胰岛素抵抗指数(HOMA-IR),胰岛β细胞功能指数(HOME-β)。结果 (1)藏族T2DM组HbA 1c、空腹血糖(FBG)、HOMA-IR水平均明显高于汉族T2DM组(P0.05);HOME-β汉族T2DM组明显高于藏族T2DM组(P0.05);两组之间FINS差异无统计学意义(P=0.89)。(2)血清铁蛋白T2DM组均明显高于同民族健康对照组,藏族T2DM组明显高于汉族T2DM组,藏族健康对照组明显高于汉族健康对照组及汉族T2DM组(P0.05);血清铁藏族T2DM组明显高于汉族T2DM组、藏族健康对照组及汉族健康对照组(P0.001),而在藏族健康对照组、汉族T2DM组、汉族健康对照组三组之间差异无统计学意义(P0.05)。(3)藏族T2DM组血清铁蛋白水平与HOMA-IR(r=0.625,P0.001)、血红蛋白(HB)(r=0.247,P=0.013)呈正相关,血清铁与HOMA-IR呈正相关(P0.05);汉族T2DM组血清铁及铁蛋白与HOMA-IR呈正相关(r=0.285,0.250,P0.05)。(4)多元线性回归分析显示铁蛋白(β=0.184,P=0.011)和FBG(β=0.143,P=0.043)与HOMA-IR相关;FBG(β=-0.512,P=0.001),TG(β=0.134,P=0.031)和LDL-C(β=-0.136,P=0.029)与HOME-β相关(P0.05)。结论藏族T2DM患者血清铁及铁蛋白水平明显增高,而且与胰岛素抵抗明显相关,提示铁代谢异常可能参与藏族T2DM的发病。     

那格列奈和瑞格列奈对2型糖尿病患者胰岛β细胞功能的改善作用

目的探讨那格列奈和瑞格列奈对2型糖尿病患者胰岛β细胞功能的改善作用。方法选择经生活干预治疗6个月以上、血糖控制不理想的2型糖尿病患者200例,采用随机双盲双模拟平行对照的方法分为两组,其中100例给予那格列奈60~90 mg治疗,100例采用瑞格列奈0.5~1.0 mg,两组均治疗12 w,治疗前后分别观察Homa-β、IRG、AUCi/AUCg等胰岛β细胞功能指标,测量空腹血糖(FPG)、餐后2 h血糖(2 h PG)、空腹胰岛素(FINS)、糖化血红蛋白(HbA1c)、总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)和低密度脂蛋白胆固醇(LDL-C),量身高和体重,用稳态模式法评估胰岛素抵抗(Homa-IR)。结果两组患者治疗前FPG、2 h PG、HbA1c等指标比较无差异(P0.05);那格列奈组患者治疗后FPG、2 h PG、HbA1c等指标与治疗前比较差异显著(P0.05);瑞格列奈组患者治疗后FPG、2 h PG等指标与治疗前比较差异显著(P0.05);两组患者治疗后FPG、2 h PG、HbA1c等指标比较无差异(P0.05);两组患者治疗前TC、TG、HDL-C、LDL-C等指标比较无差异(P0.05);那格列奈组患者治疗后TC、LDL-C等指标与治疗前比较差异显著(P0.05);瑞格列奈组患者治疗后TC、TG、HDL-C、LDL-C等指标与治疗前比较无差异(P0.05);两组患者治疗后TC、TG、HDL-C、LDL-C等指标比较无差异(P0.05);两组患者治疗前胰岛素抵抗(IR)、FINS、体重指数(BMI)等指标比较无差异(P0.05);那格列奈组患者治疗后IR、BMI与治疗前比较有差异(P0.05);瑞格列奈组患者治疗后IR、FINS、BMI指标与治疗前比较无差异(P0.05);那格列奈组患者治疗后IR水平与瑞格列奈组患者治疗后比较差异显著(P0.05);那格列奈组患者治疗后FINS、BMI与瑞格列奈组患者治疗后比较无差异(P0.05);两组患者治疗前Homa-β、IRG、AUCi/AUCg等胰岛β细胞功能指标比较无差异(P0.05);两组患者治疗后Homa-β、IRG、AUCi/AUCg等胰岛β细胞功能指标与治疗前比较差异显著(P0.05);两组患者治疗后FPG、2 h PG、HbA1c等指标比较无差异(P0.05)。结论那格列奈和瑞格列奈均能有效改善对2型糖尿病患者胰岛β细胞功能和IR。     

不同糖耐量人群胰淀素水平相关性

目的探讨不同糖耐量人群胰淀素水平变化对血糖、胰岛β细胞功能等指标的影响。方法依血糖水平将患者分为2型糖尿病组、糖耐量异常组及正常对照组,测量血压、身高、体重,检测三组空腹血糖(FPG)、餐后2 h血糖(F 2 h PG)、空腹胰岛素(Fins)、餐后2 h胰岛素(F 2 h ins)、糖化血红蛋白(HbA1c)、胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、胰淀素(Amylin)等临床指标,计算体质量指数(BMI)、HOMA-IR、HOMA-β,比较三组间差异性及Amylin与各指标的相关性。结果三组间SBP、DBP、BMI、TC、TG、HDL-C、LDL-C、FPG、F 2 h PG、Fins、F 2 h ins、HOMA-IR、HOMA-β及Amylin水平均有显著性差异(P<0.05),糖尿病组Amylin与HbA1c、FPG、F 2 h PG及HOMA-IR水平呈显著负相关(P<0.05),与Fins、F 2 h ins呈显著正相关(P<0.05),与BMI、TC、TG、HDL-C、LDL-C及HOMA-β等指标无明显相关性(P>0.05),逐步多元回归分析提示Amylin水平是影响HOMA-IR的显著因素之一。结论胰淀素分泌异常会导致代谢紊乱,胰岛淀粉样沉积增多,损害β细胞功能,加重胰岛素抵抗。     

急性冠脉综合征合并2型糖尿病患者脂联素水平观察

目的:探讨急性冠脉综合征(ACS)合并2型糖尿病(T2DM)或糖耐量异常(IGT)时血清脂联素(APN)水平及与血脂、胰岛素抵抗的关系.方法:将40例ACS患者分为3组,单纯ACS组,ACS合并T2DM组,AGT组,并以16例正常者作为对照测定空腹血糖(FBG)、总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、体重指数(BMI)、血清脂联素(APN)、胰岛素(FINS)、胰岛素抵抗(IR).结果:ACS合并T2DM组、合并IGT组、单纯ACS组的APN水平均明显低于NC组(P均＜0.01),且合并T2DM组的APN水平也明显低于单纯ACS组(P＜0.01),合并T2DM组与合并IGT组间APN水平没有明显差异,合并IGT组与单纯ACS组间亦无明显差异;校正FBG、FINS和IR后,APN与LDL-C负相关(γ=-0.322,P＜0.05),与HDL-C正相关(γ=0.330,P＜0.05),校正TG、HDL-C、LDL-C后,APN与FBG、FINS、IR负相关(γ分别为-0.270,-0.238,-0.257,P均＜0.05).结论:APN与调节血脂、抗动脉粥样硬化、改善胰岛素抵抗有关.     

高龄新诊断2型糖尿病患者预混门冬胰岛素30的达标剂量

目的分析高龄新诊断2型糖尿病(T2DM)患者预混门冬胰岛素30达标剂量及相关因素。方法选取80例新诊断老年T2DM患者,均符合1999年世界卫生组织(WHO)糖尿病诊断标准,将80例患者按年龄段分为三组,分别为A组(60~69岁组)、B组(70~79岁组)、C组(≥80岁),同时询问病史,并发症,检查体重、身高、空腹血糖(FPG)、餐后2 h血糖(2 GPG)、糖化血红蛋白(Hb A1c)、总胆固醇(TC)、甘油三酯(TG)、空腹胰岛素(FINS)、空腹C肽,三组予预混门冬胰岛素30治疗12 w,观察三组血糖水平、血糖达标时间、胰岛素用量、低血糖发生次数,分析高龄T2DM患者预混门冬胰岛素30达标剂量及相关因素。结果三组患者治疗前体重指数(BMI)、TC、TG均无统计学意义(P0.05)。C组与B组胰岛β细胞功能指数(HOMA-β)低于A组(P0.05),C组治疗前FBG、2 h PG、Hb A1c水平均高于A组、B组(P0.05)。C组患有糖尿病并发症的例数较A组、B组增多(P0.05)。经12 w治疗后,三组FBG、2 h PG、Hb A1c均有下降(P0.05),C组FBG、2 h PG、Hb A1c水平高于其他两组(P0.05);C组血糖治疗达标率更低(P0.05)。治疗后C组胰岛素达标剂量高于A、B组两组,单位体重胰岛素达标剂量大于A组(P0.05),但与B组患者无差异(P0.05);血糖达标时间较A组、B组长,低血糖发作次数较高于A组、B组(P0.05)。经预混门冬胰岛素30治疗12 w后,三组患者达标时早餐前胰岛素用量比例均较起始剂量小,晚餐前胰岛素用量比例较起始剂量增加(P0.05),其中C组较A组、B组明显。C组胰岛素达标剂量与FPG(r=0.428,P=0.042)、Hb A1c(r=0.415,P=0.049)、低血糖发生次数(r=0.574,P=0.007)、糖尿病并发症例数(r=0.568,P=0.007)正相关,而与HOMA-β(r=-0.674,P=0.002)水平呈负相关。影响C组胰岛素达标剂量的主要因素为低血糖发生次数、Hb A1c。结论高龄新诊断T2DM患者血糖水平、Hb A1c水平高,血糖不易达标,低血糖发生次数及伴有糖尿病并发症例数较多,高龄新诊断T2DM患者达标胰岛素日用量为(40.37±8.53)U/d,单位体重胰岛素达标剂量为(0.62±0.12)U·kg-1·d-1,早餐前为日总量的(54.70±2.84)%,晚餐前为日总量的(45.29±2.84)%。高龄新诊断T2DM患者胰岛素达标剂量与FBG、Hb A1c、低血糖发生次数、糖尿病并发症例数正相关,与HOMA-β水平负相关。Hb A1c、低血糖发生次数是影响高龄新诊断T2DM患者胰岛素达标剂量的主要因素。     

Associations of serum iron and ferritin with hyperuricemia and serum uric acid

Clinical Rheumatology - To assess the serum iron and ferritin levels in relation to the prevalence of hyperuricemia (HU) and the serum uric acid (SUA) level. Serum iron and ferritin concentrations...     

Lyme arthritis: correlation of serum and cryoglobulin IgM with activity, and serum IgG with remission.

Forty-eight patients with erythema chronicum migrans (ECM) were studied prospectively for 6 to 18 months. Twenty-six patients had no later symptoms, but 22 subsequently developed Lyme arthritis and 9 of them also experienced neurologic abnormalities. Eighty-seven percent of patients with active ECM followed by subsequent involvement had cryoglobulins containing IgM compared to only 13% of those with active ECM and no later symptoms. The former group also had significantly lower IgG, C3 and C4 levels. Sixty-seven percent of patients still had serum cryoglobulins when neurologic disease was most active, and 45% had them when joint symptoms were most severe, but only 11% continued to have small amounts in remission. The number of patients who continued to have serum cryoglobulins with recurrent attacks of arthritis decreased with time. In contrast, patients always had cryoglobulins in joint fluid, a finding Lyme arthritis shares with rheumatoid arthritis. The cryoprecipitates from 2 of 10 patients contained particles with internal structure, but their viral nature is problematic. All components of antisera obtained from goats and rabbits immunized with cryoglobulins were absorbed by normal human sera. The amount of IgM in cryoglobulins correlated directly with serum IgM, which generally rose during exacerbations and fell during remissions; serum IgG and IgA moved conversely. Thus, IgM was an important correlate of clinical disease activity and IgG or remission.     

Cobalamin absorption and serum homocysteine and methylmalonic acid in elderly subjects with low serum cobalamin

Abstract: We prospectively studied 41 consecutive elderly patients with serum cobalamin (vitamin B₁₂) levels lower than 125 pmol/l. The protein-bound cobalamin absorption test (PBAT) was performed in 34 of them and in 27 selected elderly control patients. The lower decision limit was 0.18% and an abnormal test was detected in only 9 (26%) of the 34 patients with low serum cobalamin level. When the PBAT was compared to the Schilling (Dicopac method) test, a concordant result was found in 80 %. Serum methylmalonic acid and/or total homocysteine concentrations were elevated in 75% (26/35) of the patients with low serum cobalamin levels but also in 30% (5/17) of the control patients. Of the 12 and 9 cobalamin-deficient patients with elevated serum levels of methylmalonic acid and homocysteine, normalization after cobalamin therapy was obtained in 11 and 5 respectively. In conclusion, determination of serum metabolites and their response to cobalamin therapy are a sensitive index of significant cobalamin deficiency and a useful means of distinguishing between cobalamin and folate deficiency. The PBAT offers little advantage over the Schilling test in diagnosing cobalamin malabsorption in elderly patients.     

Preliminary report: Zn-alpha2-glycoprotein genotype and serum levels are associated with serum lipids

Zn-alpha2-glycoprotein (ZAG) is a serum protein implicated in cancer cachexia and lipolysis. Our aim was to investigate serum levels of ZAG and polymorphisms in the ZAG gene in relation to serum lipids in man. Serum levels of ZAG correlated with serum levels of cholesterol (P = .00088) in healthy subjects and during weight loss (P = .059). The ZAG genotype was associated with total cholesterol (P = .014) and low-density lipoprotein cholesterol (P = .026) in healthy subjects, and the associations were replicated in an additional cohort (P = .0017 and P = .060, respectively). Our data indicate that ZAG plays a role in lipid metabolism.     

Effect of long-term treatment with omeprazole on serum gastrin and serum group A and C pepsinogens in patients with reflux esophagitis

Twenty-nine nongastrectomized and three partially gastrectomized patients with chronic reflux esophagitis resistant to 12 weeks' treatment with histamine H2-receptor antagonists were treated with a daily oral dose of 20-40 mg of omeprazole for 12-30 months. Basal serum gastrin, serum pepsinogen A, and serum pepsinogen C concentrations were monitored at regular intervals. Serum gastrin levels significantly (P less than 0.01) increased threefold to fourfold during the first 1-2 months of the study when all patients ingested 40 mg of omeprazole daily. Dose reduction to 20 mg did not significantly decrease gastrin levels. Serum gastrin levels showed a trend to further increase after the first 3 months of treatment, reaching statistically significant differences for values from the 3-12-month period (P less than 0.05) and from the 3-24-month period (P less than 0.005). Women and patients with high basal serum gastrin levels before omeprazole treatment were more likely to achieve higher serum gastrin levels during omeprazole treatment. Serum pepsinogen A and C levels were significantly (P less than 0.01) increased at all time intervals during long-term treatment with omeprazole. No significant tendency toward higher serum pepsinogen C levels in time was observed. However, serum pepsinogen A levels and the ratio of pepsinogen A to pepsinogen C further increased significantly (P less than or equal to 0.05) during the initial 3-12-month period. However, this trend was not observed anymore afterward. Antrectomized patients did not show increases in serum gastrin and serum pepsinogen A and C levels, suggesting that hypergastrinemia may be involved in the observed hyperpepsinogenemia.     

Coexpression of immunoreactivity with an anti-corticoliberin immune serum and immunoreactivity with an anti-vasopressin immune serum in human hypothalamic neurons

Confrontations of immuno-stainings as well as sequential stainings with corticoliberin and vasopressin antisera were performed on contiguous sections of human median eminence (ME) or hypothalamic paraventricular nucleus (PVN). Results show that a double immunoreactivity to both IS is expressed in some parvicellular PVN perikarya, and suggest that such a double immunoreactivity can be possible in some ME fibers. Similar results had been previously obtained in animals only under experimental conditions.     

血清脂联素和一氧化氮及内皮素在糖尿病周围神经病患者中的相关性研究

目的探讨血清脂联素,NO及内皮素在糖尿病周围神经病(DPN)中的作用及其相关性。方法选择糖尿病患者及健康体检者88例,采用病例-对照方法研究,分为3组,其中DPN患者30例为DPN组,单纯糖尿病患者28例为糖尿病组,健康体检者30例为对照组。采用ELISA法测定受试者血清脂联素水平,硝酸还原酶法测定血清NO水平,放射免疫法测定血浆内皮素水平。进行相关性分析。结果与对照组比较,DPN组及糖尿病组血清脂联素和NO水平明显降低,血浆内皮素水平明显增高,差异有统计学意义(P<0.01)。与糖尿病组比较,DPN组血清脂联素和NO水平明显降低(P<0.05),血浆内皮素水平明显升高(P<0.01)。DPN组脂联素与NO呈正相关(r=0.423,P<0.05),NO与内皮素呈负相关(r=-0.440,P<0.05),脂联素与内皮素不相关(r=-0.159,P>0.05);糖尿病组及对照组中脂联素与NO及内皮素不相关(P>0.05)。结论血清脂联素和NO水平降低及内皮素水平增高可能参与了DPN的发病过程,NO作用可能与脂联素的调控有关。