男性糖尿病患者血清瘦素水平观察

目的　观察男性糖尿病患者血清瘦素水平与肥胖之间的关系。方法　用酶联免疫吸附法测定男性糖尿病患者及对照组血清瘦素和真胰岛素水平。结果　男性糖尿病组与非糖尿病组血清瘦素水平未见显著性差异 (P >0 0 5 ) ,而肥胖个体的血清瘦素水平高于非肥胖个体 (t=3 5 ,P <0 0 1) ,与体重指数呈正相关 ;男性肥胖组血清真胰岛素平均值高于非肥胖组 (t=2 19,P <0 0 5 ) ,与血清瘦素水平及体重指数均呈明显的正相关 (P <0 0 1和 <0 0 0 1)。结论　血清瘦素水平与糖尿病无直接相关关系 ,而与人体肥胖程度密切相关。     

血清脂联素、瘦素与多囊卵巢综合征患者胰岛素抵抗的关系

 目的 研究脂联素、瘦素水平与多囊卵巢综合征(PCOS)患者胰岛素抵抗的相关性,探讨二者在PCOS中的作用.方法 选择PCOS 患者108 例作为研究对象,同期选择非PCOS 患者40例作为对照,分为肥胖组与非肥胖组,胰岛素抵抗组与非胰岛素抵抗组.测定血清脂联素、瘦素水平及内分泌代谢指标.结果 (1)PCOS 组血清脂联素水平低于对照组(P＜0.05);非肥胖PCOS组低于非肥胖对照组(P＜0.05);胰岛素抵抗组低于非胰岛素抵抗组(P＜0.05).PCOS组瘦素水平明显高于对照组(P＜0.05).胰岛素抵抗组瘦素水平明显高于非胰岛素抵抗组(P＜0.05).(2)血清脂联素水平与体重指数(BMI) 、空腹胰岛素(FINS) 、胰岛素抵抗指数(HOMA-IR) 、腰臀比(WHR) 、三酰甘油(TG) 呈负相关(P＜0.01,P＜0.05) .血清瘦素水平与体重指数(BMI) 、空腹胰岛素(FINS) 、胰岛素抵抗指数(HOMA-IR)、腰臀比(WHR)、三酰甘油(TG)呈正相关(P＜0.01,P＜0.05).结论 (1)PCOS患者存在低脂联素、高瘦素血症,脂联素水平与瘦素水平、胰岛素抵抗程度呈负相关.(2)脂联素、瘦素可以作为PCOS 发生糖尿病远期并发症的预测指标.     

妊娠期糖尿病母儿血清瘦素与新生儿体质量的关系

目的 探讨妊娠期糖尿病（GDM）母儿血清瘦素与新生儿体质量之间的关系.方法 采用放射免疫法检测26例妊娠期糖尿病孕妇（观察组）及30名健康孕妇（对照组）母儿血清瘦素和胰岛素水平,同时测量新生儿的体质量、胎盘重量、羊水量、孕妇体质量指数等.结果 观察组孕妇血瘦素、胰岛素水平、脐血瘦素、胰岛素水平均高于对照组（P〈0.01） 两组孕妇血清瘦素、胰岛素水平高于新生儿脐血水平,差异有统计学意义（P〈0.05或P〈0.01） 两组孕妇血清瘦素与胎儿体质量均无相关性（P〉0.05）,而观察组脐血瘦素水平与胎儿体重呈正相关（JP〈0.05）.结论 妊娠期糖尿病母儿同时存在高瘦素血症和高胰岛素血症,妊娠期糖尿病新生儿脐血瘦素水平明显低于母血瘦素水平,且与新生儿体质量呈正相关关系,有望成为预测胎儿体质量的指标之一.     

2型糖尿病患者胰岛素、真胰岛素、瘦素间的互调作用

目的 探讨2型糖尿病患者血清免疫反应性胰岛素、真胰岛素、瘦素间相互调节作用。方法 分别用放免法和酶联免疫吸附测定法测定了39例2型糖尿病患者和31例正常人免疫反应性胰岛素、真胰岛素和瘦素水平，计算三者间及其与胰岛素和真胰岛素敏感性指标的相关关系。结果 2型糖尿病患者免疫反应性胰岛素较正常人明显增高（P＜0.05)，真胰岛素、瘦素无明显变化，免疫反应性胰岛素／真胰岛素明显增高，胰岛素敏感性下降。正常人免疫反应性胰岛素、真胰岛素、瘦素之间有很好的正相关关系，2型糖尿病患者三者间则完全无关，但它们均与免疫反应性胰岛素／真胰岛素有很好的相关关系（P＜0.01)。正常人及肥胖糖尿病患者的免疫反应性胰岛素、瘦素均升高，真胰岛素正常。结论 2型糖尿病患者存在着胰岛素抵抗、真胰岛素相对不足和胰岛素－瘦素轴的平衡失调。测定真胰岛素和免疫反应性胰岛素／真胰岛素比只测定免疫反应性胰岛素更能确切地反映β细胞功能，临床意义更大。肥胖是胰岛素抵抗及瘦素抵抗的重要原因。     

妊娠期糖尿病血清瘦素、C反应蛋白检测的临床意义

目的 探讨妊娠期糖尿病(GDM)孕妇瘦素、血清C反应蛋白(CRP) 检测的临床意义.方法 对30例妊娠期糖尿病、30例健康孕妇和30例非妊娠健康妇女血清瘦素、C反应蛋白、空腹胰岛素等相关指标的水平进行分析.结果 妊娠期糖尿病孕妇血清的瘦素与C反应蛋白水平明显高于正常孕妇和非妊娠健康妇女 (P<0.01);相关分析表明,妊娠期糖尿病组孕妇血清的CRP与胰岛素两变量显著相关(r=0.473,P<0.05);血清瘦素与胰岛素水平进行两变量相关关系非常显著(r=0.920,P<0.01).结论 血清瘦素、C反应蛋白参与了妊娠期糖尿病的发生和发展,测定血清瘦素与C反应蛋白,能够及时了解妊娠期糖尿病代谢异常和炎症反应程度,利于本病预防及早期治疗.     

2型糖尿病患者血清瘦素水平和胰岛素抵抗之间的关系

目的研究2型糖尿病患者与正常糖耐量人群之间瘦素水平的差异，探讨瘦素与肥胖和胰岛素抵抗之间的关系。方法收集30例2型糖尿病患者作为观察组，20例正常人群作为对照组，采用ELISA方法测量二组的瘦素浓度；用内环境稳定模型评估胰岛素抵抗程度。结果观察组瘦素浓度、空腹血糖、空腹胰岛素、胰岛素抵抗指数高于对照组（P〈0．05）；瘦素浓度与胰岛素抵抗指数呈正相关（P〈0．05）。结论2型糖尿病患者血清瘦素水平显著升高，且与胰岛素抵抗有明显相关性。     

成年男性血尿酸水平与代谢综合征关系的初步探讨

目的 研究成年男性血清尿酸水平与代谢综合征危险因素的关系.方法 对2006年在解放军总医院做健康查体的男性进行调查.记录病史并全面检查,无糖尿病者行标准75g葡萄糖耐量试验(OGTT),排除影响血尿酸的继发因素.根据血尿酸水平,分为高尿酸血症组与血尿酸正常组,比较两组代谢综合征各组分的差异,并将血尿酸水平与各组分进行Logistic回归分析.进一步将非糖尿病者根据血尿酸水平进行分层,比较不同血尿酸水平组代谢综合征组分水平、代谢综合征患病率,血尿酸水平与代谢综合征各组分的相关性.结果 入选的男性有1 399例,年龄56.3±21.0岁,其中高尿酸血症者占14.37%.随着血尿酸水平升高,代谢综合征检出率也显著增高(P＜0.01).Logistic回归分析显示,高尿酸血症与肥胖(OR=1.998,P＜0.01)、高血压(OR=1.562,P＜0.01)、高甘油三酯血症(OR=1.529,P＜0.01)呈正相关.在非糖尿病人群中,血尿酸水平不仅与肥胖、高甘油三酯血症、高血压检出率呈正相关,还与HOMA指数(r=0.081,P＜0.05)呈正相关.结论 在本研究人群中,高尿酸血症与代谢综合征危险因素显著相关.     

多囊卵巢综合征患者血清C反应蛋白与单核细胞趋化因子蛋白-1的相关性

 目的 探讨多囊卵巢综合征(PCOS)患者血清中C反应蛋白(CRP)与单核细胞趋化因子蛋白-1(MCP-1)的相关性.方法 60例PCS患者和60例对照者根据体重指数(BMI)分为PCOS肥胖组及非肥胖组各30例、肥胖及非肥胖对照组各30例,分别应用ELISA方法及速率散射比浊法检测血清中MCP-1及CRP水平,应用化学发光法检测血清泌乳素(PRL)、黄体生成素(LH)、卵泡刺激素(FSH)、雌二醇(E2)和睾酮(T),应用放射免疫方法检测血清雄烯二酮(A)水平;应用化学方法检测血清总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白-胆固醇(HDL-C)及低密度脂蛋白-胆固醇(LDL-C);同时检测空腹血糖和空腹胰岛素.结果 (1)非肥胖PCOS组血清CRP及MCP-1水平均明显高于非肥胖对照组(P＜0.05);(2)Pearson相关分析显示,血清MCP-1与BMI(r=0.381,P=0.000)、CRP(r=0.219,P=0.027)、稳态模型的胰岛素抵抗指数(HOMA-IR)(r=0.265,P=0.007)及TG(r=0.439,P=0.000)呈正相关;CRP与BMI(r=0.477,P=0.000)、TG(r=0.214,P=0.032)及HOMA-IR(r=0.617,P=0.000)呈正相关,与HDL-C(r=-0.209,P=0.035)呈负相关.结论 PCOS是一种慢性炎症性疾病;肥胖及胰岛素抵抗加重了PCOS患者的慢性炎症状态;PCOS患者血清中MCP-1与CRP具有协同性;MCP-1及CRP可能共同参与了PCOS患者的心血管疾病的发生.     

糖尿病患者肾小球滤过率和肾有效血浆流量的改变及影响因素分析

目的 探讨2型糖尿病患者肾小球滤过率(GFR)和有效肾血浆流量(ERPF)的变化特点并对其临床影响因素进行分析.方法 2型糖尿病患者108例,依据尿白蛋白排泄率(UAER)分为4组:正常尿白蛋白组、微量尿白蛋白组、大量尿白蛋白组、肾功能不全组,行放射性核素动态显像测定GFR及ERPF,同时测定血清尿素氮、血清肌酐、空腹血糖、糖化血红蛋白、空腹胰岛素、体重指数血压.结果 随着糖尿病肾病(DN)的进展,UAER逐渐上升,GFR和ERPF水平依次降低,前者与后二者分别呈显著负相关(r1=-0.497,P＜0.05;r2=-0.215,P＜0.05).各组伴有高血压病患者GFR均比同组无高血压病者明显下降(t值分别为1.8、2.1、1.9,P＜0.05;t=3.2,P＜0.01).多元逐步回归分析显示,年龄、收缩压、糖化血红蛋白、胰岛素抵抗指数与GFR和ERPF均呈独立负相关(回归系数分别为-0.507、-0.874,-0.528、-0.587,-0.336、-0.697,-0.348、-0.371,P＜0.01).结论 GFR和ERPF均是反映DN肾损害的敏感指标,高血压、胰岛素抵抗是DN患者GRF与ERPF降低的独立危险因素,DN患者要严格控制血糖、血压及改善胰岛素抵抗以延缓GFR和ERPF下降.     

藏族男性青少年血清瘦素水平及其影响因素的研究

 目的 观察西藏那曲地区男性藏族青少年的血清瘦素水平及其与年龄、性激素和体重指数(BMI)的相关性,探讨影响血清瘦素水平的因素.方法 应用酶联免疫法和放射免疫法测定168例健康男性那曲藏族青少年血清瘦素、卵泡刺激素、黄体生成素和睾酮水平;并测量身高、体重,计算BMI.结果 血清瘦素水平浓度随年龄的增高而降低,各年龄组瘦素水平有显著差异(P＜0.05);血清瘦素水平与BMI、血清卵泡刺激素、黄体生成素和睾酮浓度呈负相关.结论 那曲地区男性藏族青少年的血清瘦素水平与年龄、体重指数和性激素水平有关.     

不同标准判定的肥胖患者脂肪细胞因子血清水平的临床意义比较

目的探讨3种代谢综合征(MS)诊断标准判定的肥胖患者脂联素(Adiponectin,APN)、抵抗素(Resistin,RST)、瘦素(Leptin,LPT)血浆水平临床意义的异同。方法采用2004中华医学会糖尿病学会(CDS)、2005国际糖尿病联盟(IDF)和2007中国成人血脂异常防治指南(CALIP)MS诊断标准中对肥胖的判定切点,将80名研究对象分为肥胖组和非肥胖组。测量体脂参数、血压,检测临床生化指标,测定空腹血浆胰岛素(FINS)、APN、RST、LPT、高敏C反应蛋白(hsCRP)、肿瘤坏死因子(TNF)α、白介素(IL)6、尿微量白蛋白(UAE)等。计算胰岛素抵抗指数(HOMA-IR)、分泌指数(HOMA-β)、敏感指数(ISI)。结果(1)3种不同标准的肥胖组血浆APN水平均显著低于非肥胖组(P均<0.01)。(2)血浆RST水平在2004CDS肥胖组显著高于非肥胖组(P<0.01),在2005IDF和2007CALIP肥胖组与非肥胖组间差异无统计学意义。(3)血浆LPT水平在2005IDF和2007CALIP肥胖组显著高于非肥胖组(P<0.01,P<0.05),在2004CDS肥胖组与非肥胖组间差异无统计学意义。(4)总体分析,血浆APN与性别呈显著正相关,与体重指数(BMI)、腰围(WC)、收缩压(SBP)、ln FINS、lnHOMA-IR、总胆固醇(TC)、ln三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、lnhsCRP呈显著负相关;血浆RST与lnhsCRP呈显著正相关,与腰臀比(WHR)呈显著负相关;血浆LPT与性别、年龄、BMI、ln空腹血浆血糖(FPG)、lnFINS、lnHOMA-IR、TC、高密度脂蛋白胆固醇(HDL-C)、LDL-C呈显著正相关,与WHR、ISI呈显著负相关;多元逐步回归分析,WC、lnhsCRP与血浆APN独立相关,WHR、lnhsCRP与血浆RST独立相关,性别、BMI、ISI、LDL-C与血浆LPT独立相关。(5)血浆APN在不同标准的各肥胖组均与性别呈显著正相关,在2005IDF和2007CALIP时与WC、lnTG呈显著负相关;在各非肥胖组均与WC呈显著负相关,在2004CDS和2007CALIP时还与BMI、TC呈显著负相关。血浆RST在各肥胖组均与lnhsCRP呈显著正相关,在非肥胖组2004CDS和2007CALIP时与lnFPG显著正相关。血浆LPT在各肥胖组与性别均呈显著正相关;各非肥胖组均与性别、lnFPG、lnHOMA-IR呈显著正相关,2004CDS和2007CALIP时还与BMI、lnFINS呈显著正相关,2005IDF和2007CALIP时还与TC呈显著正相关,均与WHR呈显著负相关。多元逐步回归分析,在不同标准各肥胖组性别、BMI均与血浆APN独立相关,lnhsCRP与血浆RST独立相关;在各非肥胖组WC均与血浆APN独立相关;性别在各标准的肥胖组和非肥胖组均与血浆LPT独立相关。结论3种不同标准的肥胖组血浆APN水平均显著低于非肥胖组,而血浆RST和LPT水平在不同标准下不一致;血浆APN在各肥胖组均与性别呈显著正相关,在各非肥胖组均与WC呈显著负相关;血浆RST在各肥胖组均与lnhsCRP呈显著正相关;血浆LPT在各肥胖组与性别均呈显著正相关,各非肥胖组均与性别、lnFPG、lnHOMA-IR呈显著正相关;在各肥胖组性别、BMI与血浆APN独立相关,lnhsCRP与血浆RST独立相关;WC在各非肥胖组均血浆APN独立相关;性别在各分组均与血浆LPT独立相关。     

肥胖者外周脂肪组织中leptin受体水平的研究

目的　研究肥胖者外周脂肪组织瘦素 (leptin)受体表达及探讨肥胖发生发展的机制。方法　用放射配基受体结合方法 ,检测 71例受检者 (其中肥胖 32例 ,超重 1 9例 ,正常对照 2 0例 )外周脂肪组织leptin受体密度。结果　随着体重指数 (BMI)的增加 ,肥胖组和超重组leptin受体密度与对照组比较差异有显著性 (P <0 0 1 ) ,肥胖组与超重组比较差异亦有显著性 (P <0 0 1 ) ;而受体与leptin的结合能力 (Kd 值 )差异无显著性 (P >0 0 5)。 3组间Kd 值差异无显著性 ,表明leptin受体与配基的结合能力与BMI无关。从散点分布图看 ,BMI越大其leptin受体密度越小 ,BMI与最大结合量相关 (r=- 0 76 ,P <0 0 1 )。结论　肥胖者外周脂肪组织中leptin受体的表达与BMI密切相关 ,而肥胖者血液中leptin水平升高 ,表明体内存在leptin受体水平下调致leptin耐受 ,继而形成肥胖。     

Determination of insulin, leptin and neuropeptide y by radioimmunoanalysis in patients with morbid obesity and anorexia nervosa after therapeutic intervention

The present study was conducted in order to analyze the relationship existing between leptin, insulin and neuropeptide Y (NPY) levels in massive weight loss and weight recovery. Twenty-three patients with severe obesity, 23 patients with anorexia nervosa and 28 healthy control subjects were studied. Patients with severe obesity underwent a vertical banded gastroplasty followed by an 800 kcal/day diet during 16 weeks, with evaluation taking place before (Body mass index, BMI, 52,1 8 Kg/m2) and after the drastic weight loss (BMI 39,2 6,2 Kg/m2). Patients with anorexia nervosa were treated with nutritional therapy exclusively during 16 weeks, and they were evaluated in the low weight situation (BMI 15,3 1,7 Kg/m2) and after weight recovery (BMI 18,9 2,8 Kg/m2). Normal subjects had a normal BMI from 20 to 27 (average 21,8 2 Kg/m2). BMI, percentage of body fat, and serum levels of leptin, insulin, and NPY, were determined in each patient and normal subjects. In severe obese patients serum leptin and insulin decreased significantly after drastic weight reduction (leptin: from 48,8 19,2 to 24,3 9,8 ng/ml; insulin: from 26,2 10,8 to 18 6 U/ml). In patients with anorexia nervosa serum leptin mean levels were significantly higher after weight recovery (3,7 1,9 vs 9,2 5,1 ng/ml). In subjects with morbid obesity NPY levels decreased after weight loss below those of control group (43,5 16,1 vs 57,3 12,8 pmol/l). On the other hand, patients with anorexia nervosa had NPY levels superior to those of control group. In subjects with anorexia, NPY levels decreased after weight recovery (69,1 16,7 a 59,1 20,3 pmol/l). In the whole population, Leptin and NPY plasma levels were correlated with body fat percentage. Leptin was positively correlated with BMI and body fat percentage in obese and anorectic subjects after weight loss or recovery, respectively. NPY was inversely correlated with body fat percentage in controls and obese subjects before treatment. These data reveal that the concentration of serum leptin and NPY correlates significantly with the total adiposity in subjects with a wide weight range and caloric intake. Leptin plasma levels are proportional to fat stores in patients with severe obesity and anorexia nervosa after drastic weight loss or recovery, respectively. NPY serum levels are negatively correlated with de total body fat in normal weight subjects and obese patients in their initial weight.     

瘦素应用于肥胖症研究

瘦素(leptin)是脂肪细胞合成和分泌的一种激素,是肥胖(ob)基因表达的产物,有抑制食欲、促进能量消耗的生理作用。多数研究表明,瘦素是脂肪分解和合成代谢的一个主要调节因子(负反馈),其水平的变化在临床上可作为早期高血脂症、脂肪肝等脂肪代谢率紊乱的灵敏指标。放射免疫分析(RIA)法对人血清(血浆)瘦素水平的精确测定和进一步研究表明,循环瘦素水平与体重指数(BMI)、年龄、性别、性激素及胰岛素内分泌等因素有关,特别是与BMI显著相关,提示多数肥胖个体存在瘦素抵抗。部分瘦素相对缺乏的肥胖者将有可能成为瘦素治疗的对象。瘦素的发现和应用使肥胖症及Ⅱ型糖尿病等相关疾病的研究进入了一个新阶段。     

Plasma levels of insulin and leptin in patients with morbid obesity and anorexia nervosa after weight loss or gain, respectively

The present study was conducted in order to analyze the relationship existing between leptin and insulin levels in massive weight loss and weight recovery. Thirteen patients with severe obesity, 14 patients with anorexia nervosa and 13 healthy control subjects were studied. The patients with severe obesity underwent a vertical banded gastroplasty followed by an 800 kcal/day diet for 12 weeks. They were evaluated prior to (body mass index [BMI] 51.2 +/- 8.8 Kg/m2) and after drastic weight loss (BMI 40.6 +/- 6.7 Kg/m2). Patients with anorexia nervosa were treated exclusively with nutritional therapy during 12 weeks, and they were evaluated at their lowest weight status (BMI 16.2 +/- 2.2 Kg/m2) and after weight recovery (BMI 17.9 +/- 2.3 Kg/m2). The BMI of the normal subjects was in the normal range of 20 to 27 Kg/m2 (average 22.8 +/- 2.6 Kg/m2). BMI, percentage of body fat, waist circumference, and serum levels of leptin, insulin, and C-peptide were determined in each patient and normal subject. In severely obese patients, serum leptin and insulin decreased significantly after drastic weight reduction (leptin: from 51.8 +/- 22.3 to 23.7 +/- 10.2 ng/ml; insulin: from 27.1 +/- 13.3 to 17.2 +/- 7.2 mU/ml). In patients with anorexia nervosa, the mean serum leptin levels were significantly higher after weight recovery (5.5 +/- 3.2 vs 7.6 +/- 6 ng/ml). Serum leptin in the severe obesity group correlated positively with BMI, percentage body fat and waist circumference before and after weight loss. In those patients suffering from anorexia nervosa, serum leptin correlated positively with the BMI, percentage of body fat, and waist circumference in the low weight state and after weight recovery. In addition, their serum insulin correlated with BMI and waist circumference after weight recovery. These data reveal that serum leptin concentration correlates significantly with the BMI and body fat content 1) in subjects with a range of weight and caloric intake, 2) in obese patients after drastic weight loss; 3) in anorexic patients after weight gain; and that hyper- or normoinsulinemia do not seem to have any influence on the leptin changes caused by weight loss or gain.     

The association of physical activity level characteristics and other lifestyles with obesity in Nagoya University alumni, Japan

Improving daily-life habits is considered to be effective in treating obesity. We have examined obesity in regular physical examinations in university students since 1974. In this study, the subjects were 199 students regarded as obese (Broca's index: more than 120%) and 326 non-obese students randomly selected (525 subjects in total) among students who underwent regular physical examinations at Nagoya University, Japan, between 1974 and 1978. Here we report our follow-up survey of obese university students and non-obese individuals who were students of the same university during the same period. This study was carried out for the purpose of clarifying the relationship between changes in lifestyle and body weight 20 years after graduation. Concerning eating behavior, a higher proportion of subjects cared about diet intake in the current non-obese group than in the current obese group (P < 0.05). The meal-time in the obese was shorter than that in the non-obese group (P < 0.01). Ten percent of subjects in the obese group and 24.4% of subjects in the non-obese group selected class II (moderate) or higher as indicative of the intensity of their daily physical activity. There was a significant difference in distribution between the groups (P < 0.05). In the group showing improvement in obesity over time, a higher proportion of subjects cared about diet intake than in the group with continued obesity (P < 0.05). Concerning intensity of physical activity, 11.8% of subjects in the group with continued obesity selected class II (moderate) or higher, while 45.5% of subjects in the group showing improvement in obesity chose class II (moderate) or higher. A significant difference in distribution existed between the groups (P < 0.01). These findings suggest that the eating behavior of ending meals before feeling satiety and a lifestyle change to enhance the intensity of daily physical activity including walking, even if not having any special sports habits, are effective in decreasing body weight.     

Insulin resistance and glucose tolerance in obese women: the effects of a recreational training program

AIM: This study was designed to investigate whether recreational physical activity based on aquatic training may improve lipid profile and glucose tolerance in obese subjects. Additionally, we intended to assess a possible correlation between insulin resistance index HOMA(IR) with another index including serum adiponectin concentrations. METHODS: Study population consisted of 12 obese women aged 44-61, who volunteered for an aquatic training 1 h twice a week for 3 months. Before entering the training program, and after completing it patients' oral glucose tolerance test was performed. Glucose, insulin and adiponectin concentrations, levels of antibodies to oxidatively modified low-density lipoproteins (oLAB), and lipid profiles were measured in blood samples collected before the oral glucose tolerance test (OGTT). Glucose and insulin concentrations were also assessed in blood samples collected at 30 and 120 min of OGTT. Atherogenic index of plasma (AIP), and insulin sensitivity indexes HOMA(IR) and HOMA(AD) were calculated on the basis of the obtained data. RESULTS: The 3-month, recreational aquatic training had no influence on body mass, but it resulted in improved glucose tolerance (at t = 0 and t = 120 min), decreased index (HOMA(IR)), and decreased levels of total and LDL-cholesterol (P<0.05). Adiponectin concentrations and values of HOMA(AD) remained unchanged. We found a significant correlation between adiponectin levels and concentrations of total and LDL cholesterol, and between insulin indexes HOMA(IR) and HOMA(AD) both before, and after the training (P<0.01). CONCLUSION: The results of our study indicate that a 3-month recreational training consisting in water aerobic results in favorable changes in glucose and lipid metabolism in obese subjects, even despite the lack of improvement in body mass.     

民航非酒精性脂肪肝飞行员血清瘦素、血糖和血脂变化的研究

目的分析2009年4月至2010年7月在民航广州医院航空体检中心体检的民航60例现役非酒精性脂肪肝（nonalcoholic fatty liver disease, NAFLD）飞行员血清瘦素、血糖、血脂的变化,探讨飞行员患NAFLD的危险因素及其预防措施。方法60例NAFLD飞行员作为试验组,体检结论正常的60例飞行员作为对照组。询问病史,空腹测量身高、体重、腰围、臀围及血压;检测血脂、空腹血糖（fasting plasma glucose,FPG）和血清瘦素水平,并进行组间比较。结果NAFLD组体重指数（bodymass index,BMI）、腰臀比、收缩压、舒张压、甘油三酯（triglyceride,TG）和血清瘦素水平较对照组显著上升（t=4．62-12．20,P〈0．01）;FPG较对照组上升（t=2．63,P〈0．05）;高密度脂蛋白胆固醇（highdensitylipid—cholesterol,HDL-C）明显下降（t=3．65,P〈0．01）。瘦素水平与TG、FPG呈正相关（r=0．72、0．82,P〈0．05）,与HDL-C呈负相关（r=-0．62,P〈0．05）。结论飞行员患NAFLD与其饮食结构及活动减少造成肥胖有关,并与瘦素水平升高密切关联。应加强对患NAFLD飞行员的预防和治疗工作,为飞行员的健康和飞行安全提供保障。