白藜芦醇对高脂模型小鼠脂代谢影响

目的探讨白藜芦醇对高脂模型小鼠脂代谢影响。方法 50只雄性小鼠随机分为基础对照组,高脂组,白藜芦醇低、中、高剂量组;除基础对照组外,其他组均喂饲高脂饲料,4周后白藜芦醇低、中、高剂量组分别给予白藜芦醇5,22,45 mg/kg灌胃,共干预6周,检测血清总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白-胆固醇(LDL-C)和高密度脂蛋白-胆固醇(HDL-C)。结果不同剂量白藜芦醇干预6周即显现出降低高脂模型小鼠血脂水平的趋势或作用,以中剂量组作用最明显,TC、TG和LDL-C分别为(3.174±0.687)、(0.884±0.408)和(1.762±0.877)mmol/L,与高脂组比较,血清TG和LDL-C明显下降(P<0.05);白藜芦醇还具有减轻高脂模型小鼠肝脏脂肪变性的作用。结论白藜芦醇干预对高脂模型小鼠可产生降脂作用。     

四种植物化学物预防性调节血脂作用快速评价

目的建立小鼠急性高血脂模型,并快速评价芒果苷、荷叶碱、熊果酸和芍药苷这4种植物化学物的调节血脂作用。方法雄性昆明小鼠按体重随机分为空白对照组、高脂模型组、辛伐他汀组(20mg/kgBW)、芒果苷组(300mg/kg)、荷叶碱组(15mg/kg)、熊果酸组(300mg/kg)和芍药苷组(300mg/kg),连续灌胃13天后,除空白对照组外,全部腹腔注射75%蛋黄乳剂,每只0.5ml。摘除眼球取血,检测血脂。结果与空白对照组比较,高脂模型组血清甘油三酯(TG)、总胆固醇(TC)和低密度脂蛋白胆固醇(LDL-C)水平显著升高;与高脂模型组比较,辛伐他汀可显著降低血清TG、TC和LDL-C水平,并且可显著升高血清高密度脂蛋白胆固醇(HDL-C)水平。荷叶碱和熊果酸可以显著降低血清TG、TC和LDL-C水平,芒果苷可以显著降低血清TG水平,而芍药苷对血脂各项指标无显著影响。结论成功建立了小鼠急性高血脂模型;荷叶碱、熊果酸和芒果苷具有不同程度的调节血脂作用。     

大豆异黄酮对去卵巢大鼠LXRα表达影响

目的研究高含量大豆异黄酮(Soybean lsoflavone,SI)对去卵巢高脂模型大鼠肝X受体a(Liver X receptor,αLXRα)基因表达的影响。方法将48只成年雌性SD大鼠去卵巢,根椐体重和总胆固醇(TC)水平随机分为6组,分别喂饲不同饲料12周;实验结束采集尾血测定其体内血脂水平,并检测大鼠肝脏、小肠中LXRα基因表达情况。结果与高脂模型组比较,大豆异黄酮各剂量组大鼠血中甘油三酯(TG)、TC、低密度脂蛋白胆固醇(LDL-C)水平均降低(P<0.05),大豆异黄酮高剂量组高密度脂蛋白胆固醇(HDL-C)水平为(1.71±0.17)mmol/L,明显高于高脂模型组的(1.36±0.21)mmol/L(P<0.05);大豆异黄酮高剂量组、雌激素对照组大鼠肝脏中LXRα基因表达明显高于高脂模型组(P<0.05);与高脂模型组比较,雌激素对照组大鼠小肠中LXRα基因表达明显升高。结论大豆异黄酮可拮抗高脂饲料对去卵巢大鼠造成的脂代谢紊乱,并促进肝脏中LXRα基因的表达。     

富硒竹节人参提取物降血脂及抗氧化作用

目的观察富硒竹节人参提取物对实验性高脂血症大鼠血脂及抗氧化作用的影响。方法采用高脂饲料喂养大鼠建立高脂血症模型,富硒竹节人参提取物按2,4g/(kg·bw)给大鼠灌胃,1次/d,连续4周。4周后取血测定血脂及抗氧化酶含量。结果富硒竹节人参提取物高、低剂量组可降低大鼠血清总胆固醇(TC)和甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)的含量,升高高密度脂蛋白胆固醇(HDL-C),高剂量组作用尤其明显;可使血清总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)及谷胱甘肽过氧化物酶(GSH-Px)活力上升,丙二醛((MDA)含量降低,与高脂模型组比较差异有统计学意义(P<0.05或P<0.01)。结论富硒竹节人参提取物能降低高脂饲料喂养大鼠的血脂水平,提高抗氧化能力,抑制脂质过氧化。     

限制能量摄入对大鼠体重及空腹血糖、血脂影响

目的 探讨限制能量摄入对大鼠体重及其体内空腹血糖、血脂的影响.方法 按体重随机将36只雄性Wistar大鼠分为基础组、限能1组和限能2组,单笼喂养12周,检测在自由摄食、80%和60%限能水平下大鼠体重及其空腹血糖、血脂的变化.结果 2个限能组体重、脂肪湿重、脂体比、甘油三酯(TG)水平均显著低于基础组(P<0.05),高密度脂蛋白胆固醇(HDL-C)水平显著高于基础组(P<0.05),空腹血糖水平与基础组比较差异无统计学意义,限能2组在实验结束时总胆固醇(TC)水平显著高于基础组(P<0.05).结论 限能可以增高大鼠HDL-C水平,降低TG水平,对空腹血糖无明显的影响,限制能量摄入达到一定程度可升高TC水平.     

高尿酸血症与血脂异常相关性

目的 探讨体检人群高尿酸血症与血致动脉硬化指数(AIP)、非高密度脂蛋白胆固醇(non-HDL-C)水平相关性及意义。方法 选择2004年1月~2006年12月在温州医学院附属一院体检中心接受体检者31 707人,测定甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白(HDL-C)、高密度脂蛋白胆固醇(HDL-C)、尿酸(UA),计算non-HDL-C和AIP;并按尿酸水平高低进行分组比较。结果 男性UA、TG、TC、non-HDL-C、AIP水平均明显高于女性(均P<0.01),而HDL-C水平则低于女性(P<0.01);男性高尿酸组AIP、non-HDL-C水平明显高于正常尿酸组,而HDL水平降低;女性高尿酸组的TG、TC、AIP、non-HDL-C水平明显高于正常尿酸组,HDL水平降低;UA与non-HDL-C、AIP、TG、TC水平呈正相关,与HDL-C呈负相关。结论 尿酸水平有明显性别差异,高尿酸血症人群存在心脑血管疾病的多种危险因素,应该引起重视。     

初发1型糖尿病患儿的血脂情况及与糖化血红蛋白水平的关系研究

目的 观察初发1型糖尿病(T1DM)儿童血脂水平, 并分析其与患儿糖化血红蛋白(HbA1c)水平的相关关系。方法 回顾性分析保定市儿童医院于2018年1月-2019年6月期间收治的168例T1DM患儿的临床资料, 并以同期内100例健康儿童作为对照组。比较两组儿童血总胆固醇(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)等血脂指标的差异。采用Pearson分析及多元回归方法分析T1DM患儿血脂水平与HbA1c水平的相关性。结果 T1DM组儿童TC、TG和LDL-C水平均显著高于对照组(t=4.691、7.705、4.119, P<0.001), HDL-C水平显著低于对照组(t=3.845, P<0.05)。血脂异常组患儿HbA1c水平显著高于血脂正常组患儿[(13.09±2.71)% vs.(11.78±2.56)%, t=3.209, P<0.05]。Pearson相关性分析结果表明, T1DM患儿TC、TG和LDL-C水平与HbA1c水平具有显著正相关关系(r=0.547、0.514、0.438, P<0.05), HDL-C与HbA1c水平无显著相关性(r=0.109, P>0.05)。多元回归分析结果表明, TC和TG与HbA1c显著正相关(β=0.008, 0.045, P＜0.05)。结论 T1DM患儿中血脂异常比例较高, HbA1c水平越高合并血脂异常风险越高, 临床应予以重视。     

大蒜油对小鼠酒精性脂肪肝预防作用

目的探讨大蒜油对小鼠酒精性脂肪肝的预防作用。方法 90只小鼠随机分为6组,每组15只,用乙醇灌胃加高脂饲料复制酒精性脂肪肝模型,大蒜油低、中、高剂量与凯西莱组分别给予相应浓度大蒜油与凯西莱,正常对照组、模型组分别灌胃等体积玉米油,每天1次。连续给药3周后处死动物,检测血生化、病理等有关指标。结果与模型组比较,大蒜油高剂量组血清中总胆固醇(TC)、谷草转氨酶(AST)、谷丙转氨酶(ALT)以及丙二醛(MDA)的水平分别下降了22.42%,25.51%,12.43%,26.27%(P<0.01或P<0.05);肝组织中的TC、甘油三酯(TG)、游离脂肪酸(FFA)、MDA的含量分别降低了25.00%,27.85%,41.13%,60.96%(P<0.01),谷胱甘肽(GSH)含量增加了100.00%(P<0.01);病理检查结果显示,大蒜油各剂量组肝细胞脂滴蓄积明显减少,脂肪变性程度减轻;大蒜油低剂量组的作用程度与凯西莱组相当。结论大蒜油对小鼠酒精性脂肪肝具有预防作用。     

补充牛磺酸对高胆固醇血症大鼠脂代谢的影响

目的 研究不同剂量水平的牛磺酸对高胆固醇血症大鼠脂质代谢的影响.方法 将断乳SD大鼠40只,经高脂饲料诱导成高胆固醇血症模型后,按体重和血浆总胆固醇均衡的原则分为5组,以高脂饲料和正常饲料为对照组,其余3组分别在高脂饲料的基础上添加不同水平(0.6%、1.35%、3%)的牛磺酸,观察牛磺酸对大鼠脂质代谢的影响,实验持续5周.结果 与高脂对照组相比,不同剂量水平的牛磺酸均可显着影响大鼠血浆脂质水平,降低AI;06%剂量水平的牛磺酸可显着升高大鼠血浆HDL-C、Apo-Al,降低血浆Apo-B水平;1.35%和3%剂量的牛磺酸对降低血浆TC、LDL-C、TG及肝脏TC,升高HDL-C/LDL-C的比值,促进粪胆汁酸排泄效果较好,其中3%剂量水平的牛磺酸效果最明显.结论 补充牛磺酸对高胆固醇血症大鼠有很好的降脂作用.     

燕麦膳食纤维对肠道胆固醇吸收的影响及机制研究

  目的  探讨燕麦纤维对脂代谢紊乱小鼠肠道胆固醇代谢的影响及其机制。  方法  选用6周龄雄性C57BL/6小鼠36只,按体重随机分为3组：阴性对照组、模型对照组和燕麦纤维组,预防性干预24周。实验结束后,检测血清甘油三酯（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）、空腹血糖和胰岛素水平以及肝组织中TG和TC水平。Western blot法测定小肠组织中肝X受体 α（LXRα）、三磷酸腺苷结合盒转运子A1（ABCA1）和G1（ABCG1）蛋白的表达水平。  结果  干预24周后,与模型对照组比较,燕麦纤维组小鼠血清TC、LDL-C水平[分别为（2.02 ± 0.44）、（0.54 ± 0.27）mmol/L]降低,HDL-C水平[（1.05 ± 0.19）mmol/L]升高（P < 0.05）;燕麦纤维组小鼠空腹血糖[（6.68 ± 1.32）mmol/L）和胰岛素抵抗指数（3.66 ± 1.28）明显下降;燕麦纤维组小鼠小肠上段组织中LXRα、ABCA1、ABCG1蛋白表达量[分别为（0.68 ± 0.14）、（0.96 ± 0.24）、（0.59 ± 0.15）]均明显升高（P < 0.05）。  结论  燕麦纤维可降低脂代谢紊乱小鼠血脂水平,增加肠道胆固醇外流;其机制可能与燕麦纤维上调小肠组织中LXRα、ABCA1和ABCG1的蛋白表达有关。     

Milk and milk products consumption in relationship to serum lipid levels: a community-based study of middle-aged and older population in Japan

The authors examined the association of milk and milk products consumption (MMPC) with serum lipid profiles including total cholesterol (TC), triacylglycerols (TG), HDL cholesterol (HDLC), LDL cholesterol (LDLC), and TC/HDLC ratio in a community-based sample. The study population comprised 461 men and 834 women aged 40-79 years who, in 2001, participated in an annual healthy examination and a lifestyle related survey Consumption frequency of 17 foods, including milk and milk products, was determined by a self-administered questionnaire. The participants were asked by "Do you drink cow's milk or eat milk products such as yoghurt and cheese everyday?", and two groups ("Yes" and "No") of MMPC were classified. Multiple linear regression analyses were conducted to examine the relationships between MMPC and 5 serum lipid profile levels adjusted for sex, age, body mass index (BMI), alcohol consumption, smoking, physical activity, and fat intake. Univariate and multivariate analyses indicated inverse associations of MMPC with TC, HDLC, and LDLC, and that the "Yes" group had higher adjusted means of serum TC by 7.133 mg/100 ml (p < 0.001), HDLC by 1.844 mg/100 ml (p < 0.05), LDLC by 5.459 mg/100 ml (p < 0.001). We suggested that MMPC has an association with serum lipid and lipoprotein levels and that MMPC may have an unfavorable effect on hypercholesterolaemia in the Japanese population.     

Triton WR1339, an inhibitor of lipoprotein lipase, decreases vitamin E concentration in some tissues of rats by inhibiting its transport to liver

The aim of this experiment was to clarify the contribution of the alpha-tocopherol transfer activity of lipoprotein lipase (LPL) to vitamin E transport to tissues in vivo. We studied the effect of Triton WR1339, which prevents the catabolism of triacylglycerol-rich lipoproteins by LPL on vitamin E distribution in rats. Vitamin E-deficient rats fed a vitamin E-free diet for 4 wk were injected with Triton WR1339 and administered by oral gavage an emulsion containing 10 mg of alpha-tocopherol, 10 mg of gamma-tocopherol, or 29.5 mg of a tocotrienol mixture with 200 mg of sodium taurocholate, 200 mg of triolein, and 50 mg of albumin. alpha-Tocopherol was detected in the serum and other tissues of the vitamin E-deficient rats, but gamma-tocopherol, alpha- and gamma-tocotrienol were not detected. Triton WR1339 injection elevated (P<0.05) the serum alpha-tocopherol concentration and inhibited (P<0.05) the elevation of alpha-tocopherol concentration in the liver, adrenal gland, and spleen due to the oral administration of alpha-tocopherol. Neither alpha-tocopherol administration nor Triton WR1339 injection affected (P>or=0.05) the alpha-tocopherol concentration in the perirenal adipose tissue, epididymal fat, and soleus muscle despite a high expression of LPL in the adipose tissue and muscle. These data show that alpha-tocopherol transfer activity of LPL in adipose tissue and muscle is not important for alpha-tocopherol transport to the tissue after alpha-tocopherol intake or that the amount transferred is small relative to the tissue concentration. Furthermore, Triton WR1339 injection tended to elevate the serum gamma-tocopherol (P=0.071) and alpha-tocotrienol (P=0.053) concentrations and lowered them (P<0.05) in the liver and adrenal gland of rats administered gamma-tocopherol or alpha-tocotrienol. These data suggest that lipolysis of triacylglycerol-rich chylomicron by LPL is necessary for postprandial vitamin E transport to the liver and subsequent transport to the other tissues.     

魔芋食品对人体脂质代谢影响的研究

用含极低热能、微量蛋白质、高膳食纤维的魔芋精粉添加制成食品,对110名高血脂者进行研究。实验组加食魔芋食品,对照组食普通食品,实验期45天,实验前、后和停食魔芋食品后45天分别检查血脂一次。结果表明:1.实验组TG、TC、LDL-C水平均比食用前显著降低(P<0.01);HDL-C、apoAI均比食用前显著升高(P<0.01);而对照组各项指标变化无显著意义(P>0.05)。实验组与对照组比较,TG、TC、HDL-C、LDL-C的变化差别显著(P<0.01)。2.魔芋食品对高脂血症者与TG、TC危险临界值者降血脂效应不同,前者TG下降83.8±133.5mg/dl,TC下降42.4±23.4mg/dl;后者TG下降-1.1±23.1mg/dl,TC下降8.3±18.2mg/dl;两者的差异显著(P<0.001)。3.实验期间膳食同日常水平。实验组三大营养素和热能摄入量稍高于对照组,膳食脂肪占总热能35％以上,热能超过供给量1/5以上,但魔芋食品降血脂效果仍显著。     

A critical evaluation of high density lipoprotein cholesterol as an index of coronary artery disease risk in Malaysians

Fasting serum specimens from (a) 217 male and 46 female patients with coronary artery disease (CAD), aged 35-75 years, who had undergone angioplasty (PTCA) / coronary artery bypass graft (CABG), and (b) 160 apparently healthy controls (106 males, 54 females, aged 30-75 years), were assessed for serum lipid profile. Both sex and ethnicity significantly influenced the levels of serum high density lipoprotein cholesterol (HDLC); in the controls, females had higher HDLC levels than males (46.7 mg/dl vs 38.5 mg/dl, p<0.00l), while the Indian males possessed significantly lower HDLC values than the male Malay or Chinese. HDLC, triglycerides (TG) and the atherogenic index- LDLC/HDLC ratio were significantly different between the CAD patients and the healthy controls, while total cholesterol (TC) and LDLC did not seem to be of diagnostic value. Serum HDLC was lower in the CAD patients compared to the healthy controls in both sexes (p<0.001), either expressed as HDLC per se or as % HDLC. This observation combined with the odds ratio (OR) values of 0.24 and 0.28 for HDLC and % HDLC respectively in males, firmly establishes HDL as a protective factor of CAD in Malaysians. Significance testing for the X2 values associated with the OR values for the various lipid indices, together with the findings on the receiver-operating characteristices (ROC) curves, i.e. plots of sensitivity vs 1-specificity, indicated that HDLC, % HDLC and TQ were equally efficient as a means of risk assessment to CAD in Malaysians.     

非酒精性脂肪肝性别之间血清生化指标比较

目的比较非酒精性脂肪肝患者性别之间生化代谢差异,探讨预防控制策略。方法检测973名体检者的总蛋白(TP)、白蛋白(ALB)、球蛋白(GLO)、天冬氨酸氨基转移酶(AST)、丙氨酸氨基转移酶(ALT)、总胆红素(TBIL)、直接胆红素(DBIL)、间接胆红素(IBIL)、葡萄糖(GLU)、总胆固醇(T-CHO)、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)、载脂蛋白A1(apoA1)、载脂蛋白B100(apoB100),计算non-HDL-C、apoB100/apoA1、LDL-C/HDL-C、apoB100/HDL-C、TC/HDL-C比值,并对89例非酒精性脂肪肝与202名体检健康者(对照组)进行比较。结果脂肪肝患病率为9.05%,男性患病率12.53%,显著高于女性的6.0%(P<0.05);与对照组比较,59例男性患者的ALT、IBIL、TG、HDL-C、LDL-C、apoA1、non-HDL-C、apoB100/apoA1、LDL-C/HDL-C、apoB100/HDL-C、TC/HDL-C差异有统计学意义(P<0.05,P<0.01),30例女性患者的AST、TBIL、DBIL、IBIL、GLU、T-CHO、TG、LDL-C、apoA1、non-HDL-C、apoB100/apoA1、LDL-C/HDL-C、apoB100/HDL-C、TC/HDL-C差异具有统计学意义(P<0.05,P<0.01);non-HDL-C与TC、LDL-C、TG、HDL-C、apoA1、apoB100、apoB100/apoA1、TC/HDL均显著相关(相关系数0.4113~0.9893,P<0.01)。结论非酒精性脂肪肝普遍具有代谢异常和肝脏受损特点,且性别之间表现不同,应采取针对性措施进行必要的预防和干预。     

Effect of chronic glucagon administration on the metabolism of triacylglycerol-rich lipoproteins in rats fed a high sucrose diet

Male adult Wistar rats were fed a semipurified diet rich in sucrose (53 g/100 g diet). The effects of chronic glucagon administration (20 micrograms.day-1.rat-1, for 21 d) were studied on plasma lipid levels, triacylglycerol secretion rates and fractional catabolic rates determined by the intravenous fat tolerance test. Triacylglycerol secretion rates of plasma, chylomicron and very low density lipoprotein (VLDL) were measured by using the Triton WR 1339 method. In both fasting and postprandial states, the different rates were not significantly modified by glucagon treatment. However, in the treated animals, significantly decreased triacylglycerol concentrations were observed in plasma and VLDL during fasting (-41 and -46%, respectively) and also in chylomicrons in the postprandial state (-37%) relative to control animals. These data could be accounted for by an increased removal rate of triacylglycerol-rich lipoprotein. The estimated values of fractional rate constants (Triton WR 1339 experiment) were increased for VLDL (+62%) in the fasting state and for chylomicrons (+104%) in the postprandial state. Similarly, the fractional catabolic rate determined with the intravenous fat tolerance test (Intralipid, Kabivitrum, Sweden) was increased 49% by glucagon treatment, suggesting an effect of glucagon on the catabolism of triacylglycerol-rich lipoproteins. Glucagon treatment did not modify the composition of VLDL obtained 60 min after Triton WR 1339 injection, except that in the fasting state apo B100 proportions and concentrations increased, suggesting a specific effect on the hepatic secretion of apo B100 VLDL.     

北京市城区人群血脂异常的分布和相关因素分析

目的 分析血脂异常在北京市人群中的分布情况，方法 横断面调查法调查北京市城区12391例成人血脂水平，分析低HDLC，高LDLC，高TC，高TG的年龄性别分布，与糖尿病，高血压，肥胖的关系，并用非条件多元Logistic回归分析与其相关的危险因素。结果 血脂异常在人群中有相当高的发生率，并呈低龄化的趋势，男性发生率增高的年龄段在30-40岁，女性在40-50岁之间，50岁以前，男性发生率高于女性；50岁后，女性的发生率显高于累性，血脂异常也常常与其他心血管危险因素合并存在，以与肥胖，高血压的聚集尤为突出，分析与血脂异常相关的因素发现，除高LDLC和高TC外，低HDLC和高TG均与肥胖，吸烟量呈正相关，而与体育运动呈负相关，结论 血脂异常的防治十分紧迫，人群防治措施可根据分布特点而实施，增加体育运动，减轻体重对降低血脂异常有十分重要的意义。     

Influence of mitochondrial DNA 5178 C/A polymorphism on serum cholesterol changes: a short-term follow-up in middle-aged Japanese men

Objective

The mitochondrial DNA 5178 cytosine/adenine (Mt5178 C/A) polymorphism is reportedly associated with longevity in the Japanese population, and the Mt5178A genotype may exert anti-atherogenic effects. The aim of this study was to determine whether there were longitudinal differences in serum lipid levels between carriers of the Mt5178C genotype and those of the Mt5178A genotype and to assess the impact of these genotypes on serum cholesterol levels.

Methods

The serum levels of total cholesterol (TC), high-density lipoprotein cholesterol (HDLC), and low-density lipoprotein cholesterol (LDLC) were measured and the Mt5178 C/A genotypes determined in 110 Japanese men aged 41–66 (mean 52.3) years who had received medical checkups twice in the period 1999–2005. The longitudinal changes of TC, HDLC, and LDLC were calculated according to genotype.

Results

The serum levels of TC at baseline and follow-up were significantly different, whereas those of HDLC and LDLC were not. The changes in HDLC differed significantly between the two Mt5178 C/A genotype groups, with the changes in HDLC level being significantly greater in the Mt5178A genotype group than in the Mt5178C group (p = 0.015).

Conclusions

The Mt5178 C/A genotype may modify longitudinal changes in serum TC and HDLC levels in middle-aged Japanese men.     

调整血脂对冠心病预后的影响

目的：探讨长期调脂治疗对冠心病患者预后的影响。方法：对８６例伴有高脂血症的冠心病患者进行（３．１±０．７）年的调脂治疗（观察组）,并以同期未进行调脂治疗的１１３例为对照（对照组）。结果：与治疗前相比,治疗后观察组血ＴＣ、ＴＧ、ＬＤＬ－Ｃ、ＡｐｏＢ１００明显下降,ＨＤＬ－Ｃ、ＡｐｏＡ１明显增高（Ｐ＜０．０１）。随诊观察表明,心脏事件的发生率观察组为２７．９１％,并随观察时间的延长而逐渐下降（Ｐ＜０．０５）,对照组为８７．６１％,且随观察时间的延长而逐渐增高（Ｐ＜０．０１）。结论：长期的调脂治疗对冠心病患者的预后具有明显的改善作用。     

肥胖儿童血Obestatin、Ghrelin与胰岛素抵抗的关系

目的:探讨单纯性肥胖儿童外周血obestatin、ghrelin、ghrelin/obestatin(G/O)比值水平变化及与胰岛素抵抗(IR)的关系。方法:选取单纯肥胖组50例,正常对照组30例,采用放免法(RIA)测定其血清obestatin、ghrelin,采用全自动荧光免疫分析系统测定空腹血清胰岛素(FINS),采用生化法测定空腹血糖(FBG)、血脂,并计算HOMA-IR值。结果:单纯性肥胖组血清obestatin、ghrelin水平明显低于对照组(P<0.05),G/O比值无明显差异(P>0.05),HOMA-IR、甘油三酯、总胆固醇、低密度脂蛋白均高于对照组(P<0.05)。线性偏相关分析obestatin与FINS、HOMA-IR负相关(P均<0.01),gh-relin与BMI、WHR、HDLC、HOMA-IR负相关(P均<0.05),G/O比值与WHR呈负相关(P<0.05)。结论:obestatin、gh-relin水平的降低可能参与了肥胖、胰岛素抵抗的发生,它们可能具有防止肥胖和IR的作用。