吡格列酮对实验性动脉粥样硬化大鼠血脂水平的影响及临床意义

目的观察吡格列酮对高脂饮食诱导动脉粥样硬化模型大鼠血脂水平的影响,并探索其临床意义。方法设清洁型SD大鼠26只,随机分为对照组(n=9)、高脂饮食组(n=17),高脂饮食组喂养12周后再随机分为模型组(n=8)和吡格列酮组(n=9),分别给予蒸馏水、蒸馏水(1.5ml/100g)和吡格列酮10mg/(kg·d)灌胃,1次/d,同时继续高脂饮食,干预4周后,检测各组血脂水平并观察主动脉病理形态学改变。结果高脂饮食喂养12周后,与对照组相比,模型组和吡格列酮组三酰甘油(TG)、总胆固醇(TC)显著升高(P<0.01)。给药干预4周后,吡格列酮组干预后TG、TC、低密度脂蛋白胆固醇(LDL-C)较干预前明显降低(P<0.01),与模型组比较,吡格列酮组TG、TC水平明显降低(P<0.01)。且可减轻高脂饮食诱导的主动脉内膜增厚和平滑肌细胞增殖。结论吡格列酮可改善高脂血症大鼠血脂水平,延缓主动脉粥样硬化病理改变,提示吡格列酮的抗动脉粥样硬化作用可能部分归于血脂改善效应。     

Effect of Zinc Supplementation on Triglyceride,Cholesterol, LDL,and HDL Levels in Zinc-Deficient Hemodialysis Patients

Introduction. Zinc deficiency is known to occur in widely diverse areas of world. It has now been recognized in many disease states, such as ESRD patients on maintenance hemodialysis (HD). The purpose of this research was to study the effects of zinc supplementation on the concentration of serum zinc, total cholesterol, triglyceride, and cholesterol fractions (HDL, LDL) in HD patients.?Patients and Methods. In a double blind trial, the effects of oral zinc supplementation on the serum concentration of zinc, total cholesterol, HDL and LDL cholesterol, and triglyceride in HD patients were evaluated.?Results. After 42 days, the mean serum zinc concentration among participants in the zinc-supplemented group increased. There was a significant elevation in the serum total cholesterol and also in mean the serum LDL and HDL cholesterol and serum triglyceride for the subjects in the zinc-supplemented group.?Discussion. A suboptimal level of the serum total cholesterol concentration is a factor associated with malnutrition and morbidity in the HD patients. Maintenance HD patients with both low serum zinc and low serum total cholesterol concentrations may benefit from zinc supplementation. Therefore, it is advisable to obtain baseline measurement of the serum zinc and total cholesterol concentrations in maintenance HD patients.     

Effect of Peritoneal Dialysis Solution Type on Serum Lipid Levels in End-Stage Renal Disease

Among the different cardiovascular risk factors, lipid abnormalities dominate the high mortality in chronic ambulatory peritoneal dialysis patients. So far, no data comparing the effect of standard glucose-containing, amino acid-containing, and icodextrin-containing peritoneal dialysis solutions on serum lipid concentrations in a chronic ambulatory peritoneal dialysis population are available. To determine the effect of peritoneal dialysis solutions on parameters of lipid metabolism, 67 subjects who had continued their usual dialysis for the last six months were enrolled in the study. Group A consisted of 18 patients who were receiving only glucose-based peritoneal dialysis solutions, group B consisted of 18 patients who were receiving glucose and amino acid-based peritoneal dialysis solutions, and group C consisted of 31 patients who were receiving glucose and icodextrin-based peritoneal dialysis solutions. Serum lipid parameters including total cholesterol, low-density lipoprotein, high-density lipoprotein, triglyceride, and lipoprotein (a) were determined in all groups. No significant difference in serum lipid parameters was found between groups A, B, and C. These results demonstrate the lack of the effect of amino acid or icodextrin-based peritoneal solutions on dyslipidemia of CAPD patients.     

布渣叶总黄酮离子液体协同超声辅助提取工艺考察及其调血脂活性研究

目的 探讨布渣叶总黄酮（total flavones from Microcos paniculata,MPTF）的高效绿色环保提取方法,并考察其调血脂活性。方法 采用离子液体协同超声辅助提取MPTF,对提取工艺进行单因素实验及正交试验考察;采用高脂饲料造模,将Wistar大鼠随机分为正常对照组、阳性对照组（瑞舒伐他丁钙片5.2 mg/kg）、高脂模型组和MPTF低、中、高剂量组（ig给药MPTF 300、600、900 mg/kg）,每组各10只,测定总胆固醇（TC）、三酰甘油（TG）、高密度脂蛋白（HDL-C）、低密度脂蛋白（LDL-C）水平。结果 离子液体超声辅助提取MPTF的最佳工艺条件：离子液体为[BMIM]Cl,浓度为0.30 mol/L,料液比为1：40,提取溶剂为60%乙醇水溶液,提取时间为30 min,提取温度为50℃;验证实验结果表明,该提取工艺所得总黄酮提取率高,工艺稳定。调血脂实验结果表明,MPTF各剂量组均能够降低TC、TG、LDL-C水平,升高HDL-C水平（P<0.05）,且随着MPTF剂量增加各指标变化趋势明显,具有一定的剂量依赖性。结论 离子液体协同超声辅助提取MPTF工艺稳定可行,为离子液体协同超声辅助提取中药中难溶性有效成分提供参考;MPTF提取物具有较好的调血脂作用。     

海参EPA-PC对非酒精性脂肪肝大鼠三酰甘油代谢的改善作用

摘要：目的 探究海参磷脂型二十碳五烯酸（EPA-PC）对非酒精性脂肪肝（non-alcoholic fatty liver disease, NAFLD）大鼠甘油三酯代谢的影响。方法 采用饮食中添加乳清酸的方法诱导建立NAFLD大鼠模型。雄性Wistar大鼠随机分为5组,分别为正常组、模型组、洛伐他汀对照组、EPA-PC高、低剂量组。饲喂3周后,检测大鼠肝脏及血清中总胆固醇（Total cholesterol,TC）及甘油三酯（Triglycerides,TG）含量;RT-PCR法检测大鼠肝脏中TG合成相关基因GPAT和DGAT,TG分解相关基因ATGL和HSL以及AMPK信号通路相关基因CAMKK和LKB1 mRNA的表达水平。结果 EPA-PC可以显著降低NAFLD大鼠血清和肝脏中TG和TC的含量,显著下调GPAT、DGAT和HSL的表达,显著上调ATGL和AMPK信号通路相关基因表达。结论 EPA-PC可以通过抑制TG合成,促进TG分解,并激活AMPK信号通路,从而改善NAFLD大鼠的TG的代谢。     

葛根素联合卵磷脂络合碘片对眼底出血患者止血效果的影响

目的:探究葛根素联合卵磷脂络合碘片对眼底出血患者止血效果的影响。方法:选取2016-04/2017-03在我院就诊的眼底出血患者66例100眼,使用完全随机法将患者随机分为A组和B组,各33例50眼。A组给予卵磷脂络合碘片治疗,B组使用葛根素联合卵磷脂络合碘片治疗。两组均接受3个疗程的治疗。检测治疗前后血浆黏度指标、血清同型半胱氨酸(Hcy)、总胆固醇(TC)和甘油三酯(TG)水平变化,统计两组患者眼底出血治疗效果和不良反应发生率。结果:治疗前两组患者血浆黏度、血清Hcy、TC和TG指标无差异(P>0.05)。治疗后,两组患者的全血黏度高切、全血黏度低切、血浆黏度、Hcy、TC和TG均低于治疗前(P<0.001);与A组比较,B组患者全血黏度高切、全血黏度低切、血浆黏度、Hcy、TC和TG均降低(P<0.05)。B组患者较A组治疗总有效率增高(P<0.05)。两组患者均发生不同程度的甲状腺变化、胃肠道反应、精神兴奋和腹胀,两组患者不良反应生率无差异(P>0.05)。结论:葛根素联合卵磷脂络合碘片治疗眼底出血患者疗效显著,与改善患者血浆黏度、降低血清Hcy、TC和TG有关。     

Relationship between dyslipidaemia and semen quality and serum sex hormone levels: an infertility study of 167 Japanese patients

A prospective study was performed in the Reproduction Center of Ichikawa General Hospital (Chiba, Japan) to assess the relationship between dyslipidaemia and sperm quality and serum hormone levels in male patients in Japan. The semen parameters and blood samples were assessed in relation to several variables, including body mass index (BMI) and serum triglyceride (TG) levels. Between 2011 and 2012, 167 male partners of infertile couples aged 22–46 years (mean: 36.5 years) were referred to the reproduction centre. In total, 66 patients (39.5%) had hypertriglyceridaemia (TG level ≥ 150 mg dl^?1). There was no significant relationship between serum TG levels and sperm concentration or motility; however, the serum TG level was positively associated with the sperm morphological traits. Furthermore, the serum levels of glutamic oxaloacetic transaminase and glutamic pyruvic transaminase were associated with the serum TG levels. By contrast, a negative relationship between serum testosterone and TG levels was discovered.     

Codonopsis lanceolata Extract Prevents Diet-Induced Obesity in C57BL/6 Mice

Codonopsis lanceolata extract (CLE) has been used in traditional medicine in the Asian-Pacific region for the treatment of bronchitis, cough, and inflammation. However, it is still unclear whether obesity in mice can be altered by diet supplementation with CLE. To investigate whether CLE could have preventative effects on high fat diet (HFD)-induced obesity, male C57BL/6 mice were placed on either a normal chow diet, 60% HFD, or a HFD supplemented with CLE (60, 180, and 360 mg/kg/day) for 12 weeks. CLE decreased body weight and subcutaneous and visceral fat weights in HFD-induced obese mice. CLE group mice showed lower fat accumulation and a smaller adipocyte area in the adipose tissue compared with the HFD group mice. CLE group mice exhibited lower serum levels of triglycerides, total cholesterol, low density lipoprotein (LDL), glucose, and insulin compared with the HFD group mice. In addition, CLE decreased liver weight and lowered the increase in aspartate aminotransferase (AST) and alanine transaminase (ALT) levels in HFD-induced obese mice. These results indicate that CLE can inhibit the development of diet-induced obesity and hyperlipidemia in C57BL/6 mice.