Apolipoprotein A5 gene promoter region T-1131C polymorphism associates with elevated circulating triglyceride levels and confers susceptibility for development of ischemic stroke

The possible pathogenic role of triglycerides (TG) in the development of ischemic stroke is still under extensive investigation. Recently, apolipoprotein (apo)A5 gene promoter region T-1131C polymorphism has been shown to associate with elevated serum TG levels. In the current work, a total of 302 subjects were classified as being large vessel-associated, small vessel-associated, or belonging to a mixed group of ischemic stroke-affected patients. The level of TG was increased in all groups (p<0.01). The apoA5-1131C allele frequency was approximately twofold in all groups of stroke patients compared with the controls (5 vs 10–12%; p<0.05); and the apoA5-1131C allele itself was also found to associate with increased TG levels in all groups. In a multivariate logistic regression analysis model adjusted for differences in age, gender, serum cholesterol, hypertension, pressence of diabetes mellitus, smoking and drinking habits, and ischemic heart disease, a significantly increased risk of developing stroke disease was found in patients carrying the apoA5-1131C allele (p<0.05; odds ratio OR=2.1 [1.3–4.7]); this association was also proven for all subtypes of the stroke. The results presented here suggest that the apoA5-1131C allele is an independent risk factor for the development of stroke. Being that apoA5 gene is under the control of the peroxisome proliferator-activated receptor α, theoretically, the current observations also can have long-term therapeutic consequences.     

Lower serum apelin levels in women with polycystic ovary syndrome

We tested differences in serum apelin levels between women with polycystic ovary syndrome (PCOS) and those with a healthy regular menstrual cycle, finding that apelin levels were higher in normal women and that apelin was positively correlated with apolipoprotein A levels.     

脑卒中患者血脂及载脂蛋白AⅠ、B100、CⅠ及CⅡ的研究

对72例脑卒中患者及64例年龄相当正常人的血脂及载脂蛋白(apo)AⅠ、B100、CⅠ及CⅡ进行了全面分析。结果发现脑卒中患者血清甘油三酯含量显著增加,HDL-胆固醇显著降低,总胆固醇含量略有下降。患者血清apoAⅠ略有降低,apoB100略有升高,而apoCⅠ及CⅡ显著降低。作者对结果进行了讨论。     

痰热清注射液佐治严重脓毒症的疗效及其对高密度脂蛋白胆固醇的影响

目的 探讨痰热清注射液对严重脓毒症患者高密度脂蛋白胆固醇(HDL-C)水平的影响.方法 选取2015年1月至2016年12月收住重庆市荣昌区人民医院重症医学科的72例严重脓毒症合并低HDL-C患者为研究对象,按随机数表法分为对照组和观察组各36例,对照组予常规综合治疗,观察组在对照组基础上加用痰热清注射液,疗程均为7 d.比较两组患者治疗前后的血清HDL-C、载脂蛋白A1(apoA1)水平、APACHEⅡ评分的变化及住ICU时间和总住院时间.结果 两组患者入科后的APACHEⅡ评分、血浆HDL-C、apoA1水平比较差异均无统计学意义(P>0.05);两组患者住ICU时间比较差异无统计学意义(P>0.05);总住院时间观察组为(14.33±5.21)d,明显低于对照组的(18.36±4.43)d,差异有统计学意义(P<0.05);治疗后观察组患者的APACHEⅡ评分为(10.11±2.13)分,明显低于对照组的(14.33±2.87)分,差异有统计学意义(P<0.05);治疗后观察组患者的HDL-C、apoA1水平分别为(0.81±0.33)mmol/L、(1.34±0.55)g/L,明显高于对照组的(0.59±0.28)mmol/L、(0.91±0.320)g/L,差异均有统计学意义(P<0.05).结论 痰热清注射液佐治脓毒症可提高严重脓毒症患者体内HDL-C水平,缩短病程,提高临床疗效.     

三磷酸腺苷结合盒转运体A1对糖尿病地鼠巨噬细胞内胆固醇外流的影响

目的探讨糖尿病地鼠巨噬细胞内胆固醇外流的改变,尤其是三磷酸腺苷结合盒转运体A1(ABCA1)的功能变化以及与载脂蛋白AI(apoA-I)的相互作用。方法用金黄地鼠高脂及糖尿病模型,分离纯化腹腔巨噬细胞,用外源性apoA-I及8-br-cAMP在体外干预巨噬细胞,测定干预前后巨噬细胞ABCA1表达和细胞内胆固醇含量的变化。结果细胞内胆固醇含量在糖尿病组高于高脂组和正常对照组。apoA-I和8-br-cAMP在体外均增加糖尿病组巨噬细胞ABCA1 mRNA的表达。apoA-I使各组细胞内胆固醇外流均增加,且与孵育时间成正比,胆固醇外流量糖尿病组高于高脂组和正常对照组。结论糖尿病鼠巨噬细胞内胆固醇大量沉积,可能与内源性apoA-I量和功能的改变所引起的ABCA1介导的细胞内胆固醇外流受阻有关。     

血清中apoA-Ⅰ/apoB-100比值测定的结果分析

目的 :血清中 apo A- / apo B- 10 0比值的测定用于心血管疾病的诊断及预防。方法 :用比浊免疫测定法对12 0例临床确诊的高脂血症患者及 30例正常健康人血清进行 apo A- / apo B- 10 0比值测定 ,对结果进行分析。结果 :高脂血症患者血清 apo A- / apo B- 10 0明显低于正常组 (P<0 ,0 1)。结论 :apo A- / apo B- 10 0比值的测定对于早期诊断及预防高脂血症所致的心血管疾病有重要参考价值     

载脂蛋白A1基因克隆及序列分析

目的 :克隆人载脂蛋白A1 (apoA1 )基因。　方法 :选择人胎肝组织 ,提取总RNA ,以此为模板 ,利用RT PCR法获取apoA1成熟肽基因片段 ,琼脂糖电泳分离纯化所得目的基因并克隆至T Vector ;ABI 377自动序列分析仪分析所得基因序列。　结果 :PCR产物经琼脂糖电泳 ,目的基因片段与预期大小相符 ;序列分析仪分析所得基因序列 739bps,与国外报道的完全相同。　 结论 :从人胎肝组织成功克隆apoA1基因     

ApoB/apoA1 is an effective predictor of coronary heart disease risk in overweight and obesity

We investigated the relationship of apoB/apoA1 ratio and coronary heart disease (CHD) in persons who were overweight or obese.The subjects were divided by the body mass indexes (BMI) into the normal weight group (n=397,BMI<24 kg/m 2) and the overweight group (n=400,BMI>24 kg/m 2).Our results showed that the overweight group had higher blood pressure [(130.15±19.01) mmHg vs (123.66±18.70) mmHg] and higher levels of blood sugar [(7.09±2.89) mmol/L vs (6.21±2.59) mmol/L],triglyceride [(1.93±1.19) mmol/L vs (1.44±0.85) mmol/L],total cholesterol [(4.26±1.06) mmol/L vs (4.09±0.99) mmol/L],low-density lipoprotein cholesterol (LDL-C) [(2.56±0.75) mmol/L vs (2.39±0.72) mmol/L],and apoB [(0.83±0.27) mg/L vs (0.78±0.23) mg/L],and a higher apoB/apoA1 ratio (0.83±0.27 vs 0.75±0.25) and lower levels high-density lipoprotein cholesterol [(1.10±0.26) mmol/L vs (1.21±0.31) mmol/L] and apoA1 [(1.04±0.20) mg/L vs (1.08±0.22) mg/L] than those of the normal weight group (all P < 0.05).The prevalence of CHD in the over-weight group in the lowest LDL quartile was almost twice greater than that of the highest apoB/apoA1 quartile,compared with the subjects in the lowest apoB/apoA1 quartile.The higher apoB/apoA1 quartile was in agreement with the higher prevalence of CHD.In the overweight and obesity group,the area under ROC curve (AUC) was the highest for apoB/apoA1 (0.655).The cut-off point of apoB/apoA1 for optimal sensitivity and specificity was at 0.80,with a sensitivity of 57.19% and a specificity of 71.72%.In conclusion,apoB and apoA1 were simple clinical indicators,and the apoB/apoA1 ratio was closely related with CHD in overweight and obese patients.The apoB/apoA1 ratio may provide some useful information in the differential diagnosis.     

血浆中apoAⅠ和mTOR蛋白在维吾尔族妇女宫颈病变进程中的动态变化及意义

目的： 探讨血浆中载脂蛋白AⅠ(apoAⅠ)含量和哺乳动物雷帕霉素靶蛋白(mTOR)活性在维吾尔族妇女宫颈病变进程中的动态变化及评价其对于宫颈癌预警的灵敏度、特异性和准确性。方法：收集新疆地区维吾尔族宫颈病变血浆样本共82例(宫颈炎22例,CINⅡ~Ⅲ20例,宫颈癌早期20例,宫颈癌晚期20例),用酶联免疫法检测血浆中apoAⅠ蛋白含量和mTOR活性,分析其与宫颈病变进程的关系及相关性,评价其对于宫颈癌预警的灵敏度、特异性和准确性。结果：随着宫颈炎到CINⅡ~Ⅲ、宫颈癌早期和晚期发病过程,血浆apoAⅠ含量明显降低而mTOR活性上升,与正常对照宫颈炎组比较,其差异均有统计学意义(P＜0.05);apoAⅠ的表达与mTOR活性呈低度负相关(r＜0.4,P＜0.05);血浆mTOR活性的预警灵敏度、特异度和准确度较高,分别为94.0%、60.0%、80.0%,而apoAⅠ分别为70.1%、60.0%、29.0%。从不同指标联合检测的角度分析,apoAⅠ和mTOR联合检测的灵敏度、特异度和准确度分别为82.1%、60.0%、54.5%。结论：维吾尔族妇女宫颈癌发生发展与血浆中apoAⅠ含量和mTOR活性动态变化密切相关,可以成为宫颈癌早期诊断的预警或疗效评估的重要指标。