Association of apolipoprotein ɛ4 allele and neuropathologic findings in patients with dementia

Apolipoprotein E (APOE) is a lipoprotein expressed in liver and brain as one of three isoforms (APOE 2, APOE 3 and APOE 4). Recent findings suggest that the presence of APOE 4 is associated with an increased risk for both familial Alzheimer's disease and late-onset Alzheimer's disease. We extended these observations by determining the frequency of APOE alleles in patients with pathologically confirmed Alzheimer's Disease (AD), Parkinson's disease (PD), diffuse Lewy Body disease (DLBD), AD with concomitant PD pathology, demented PD patients without or with concomitant AD pathology and in schizophrenics with a progressive dementia (SCHIZ+DEM). The APOE genotype was determined by restriction digestion of polymerase chain reaction-amplified DNA isolated from frozen brain samples. The frequency of the APOE 4 allele was highest among sporadic AD and DLBD patients (0.30 and 0.38, respectively) and lowest in the SCHIZ+DEM and non-demented PD patients (0.06 and 0.1, respectively). Thus, the APOE 4 allele is over-represented selectively in patients with dementias associated with plaques and tangles and/or cortical Lewy bodies, but not in demented schizophrenics or non-demented PD patients.     

吸烟与动脉硬化性脑梗塞关系的研究

目的：探讨吸烟与动脉硬化性脑硬塞（ＡＳＣＩ）的关系。方法：对１０２例ＡＳＣＩ患者及１０８例正常人血清载脂蛋白（Ａｐｏ－Ｂ）、高密度脂蛋白胆固醇（ＨＤＬ－Ｃ）、总胆固醇（ＴＣ）进行测定及对比分析。结果：ＡＳＣＩ组Ａｐｏ－Ｂ比对照组显著升高（Ｐ＜０．０１）,ＨＤＬ－Ｃ比对照组显著降低（Ｐ＜０．０１）,而ＴＣ两组间无明显差异（Ｐ＞０．０５）。在对照组及ＡＳ－ＣＩ组吸烟者Ａｐｏ－Ｂ均高于非吸烟者（Ｐ＜０．０１,Ｐ＜０．０５）,而ＨＤＬ－Ｃ吸烟者明显低于非吸烟者（Ｐ＜０．０１）。结论：吸烟能促使血清Ａｐｏ－Ｂ增高及ＨＤＬ－Ｃ下降,可以认为吸烟是ＡＳＣＩ的危险因素之一。     

载脂蛋白(a)亚型与脑梗塞的病因学联系

为探讨 Ｌｐ（ａ）、ａｐｏ（ａ）与脑梗塞病因学的关系,阐明ａｐｏ（ａ）基因表型对脑梗塞的调控作用,检测了 ９０ 例经 Ｃ Ｔ 确诊的脑梗塞患者血清 Ｌｐ（ａ）含量,并分离出 １３ 种 ａｐｏ（ａ）表型,与对照（以年龄、性别配比）比较。结果表明,高 Ｌｐ（ａ）者（≥３０ｍ ｇ／ｄｌ）患脑梗塞的危险性为正常者（＜ ３０ｍ ｇ／ｄｌ）的 ３５６ 倍（ Ｐ＜ ０．０１）,ａｐｏ（ａ）分子量与 Ｌｐ（ａ）水平呈高度负相关,ｒ＝ － ０．４８１,说明 ａｐｏ（ａ）大小决定了约 ４８％ 的 Ｌｐ（ａ）水平。ａｐｏ（ａ）等位基因 Ｌｐ Ｂ、 Ｌｐ Ｓ１、 Ｌｐ Ｓ２ 可能是易发脑梗塞者的基因标志。     

Apolipoprotein E polymorphisms and the risk of nonlesional temporal lobe epilepsy

PURPOSE: To evaluate whether the inheritance of the apolipoprotein E (ApoE) epsilon4 allele is a risk factor for nonlesional temporal lobe epilepsy (TLE), and to determine whether the newly described -491 A/T ApoE polymorphism may independently affect the risk of nonlesional TLE. METHODS: The study group consisted of 63 patients (35 women and 28 men; age at onset of epilepsy, 30.6 +/- 19.6 years; mean (+/-SD). All of them had received a diagnosis of nonlesional TLE after a detailed clinical, electroencephalographic, and brain magnetic resonance investigation. The ApoE polymorphisms were determined from blood samples by standard methods. The molecular study also was performed in 220 age- and sex-matched normal individuals. RESULTS: There were no differences between TLE patients and controls in either allelic or genotypic frequencies of the ApoE and -491A/T polymorphisms. Moreover, no effect of ApoE or -491A/T polymorphisms was found on the age at onset and severity of epilepsy. CONCLUSIONS: The allelic and genotypic frequencies of ApoE polymorphisms in Italian patients with nonlesional TLE are comparable to control values, indicating that ApoE polymorphisms are not a significant genetic risk factor for the occurrence of nonlesional TLE.     

国产与进口阿托伐他汀治疗高脂血症的比较

目的:比较国产与进口阿托代他汀治疗高脂血症的疗效。方法:选择原发性高脂血症患者76例,随机分为国产阿托伐他汀(10mg·d~(-1))组和进口阿托伐他汀(10mg·d~(-1))组各38例,均治疗8周。结果:2组治疗4周时总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)均开始显著下降(P<0.01),治疗8周高密度脂蛋白胆固醇(HDL-C)开始显著上升(P<0.05),但2组间比较差异无显著意义(P>0.05);不良反应发生率国产组10.5％,进口组7.9％,2组差别无显著意义(P>0.05)。结论:国产阿托伐他汀与进口阿托伐他汀均有明显的调脂效果,两者使用均较安全。     

突聋病人血液流变学及血脂代谢研究

目的探讨血液流变学和血清脂质代谢变化与突发性耳聋(突聋)的关系。方法检测50例突聋病人及50例对照者血液流变学参数及血清中甘油三酯(TG)、总胆固醇(CHO)、高密度脂蛋白胆固醇(HDL-CH)、低密度脂蛋白胆固醇(LDL-CH)、载脂蛋白A(ApoA)、载脂蛋白B(ApoB)和脂蛋白(a)[LP(a)]的含量。结果突聋组全血比粘度、全血还原比粘度、血浆粘度和红细胞压积均增高,与对照组比较差异有显著性(P<0.01);突聋组TG、LDL-CH、ApoB和LP(a)水平较对照组显著增高(P<0.01),HDL-CH较对照组显著降低(P<0.01)。两组间CHO和ApoA无显著性差异(P>0.05)。结论 血液流变学及血脂代谢的异常改变可能与突聋的发生相关。     

Effects of Red Palm Oil on Serum Lipids and Plasma Carotenoids Level in Chinese Male Adults

Objective Effects of red palm oil on major plasma carotenoids, tocopherol, retinol and serum lipids were evaluated when used in Chinese diet. Methods Red palm oil group (RPO) composedof 20 male subjects(aged 18-32) and soybean oil group (SBO) composed of 22 male subjects     

LDL-C/HDL-C比值及颈动脉粥样硬化性狭窄与脑梗塞发病关系的探讨

目的 研究低密度脂蛋白胆固醇(LDL-C)／高密度脂蛋白胆固醇(HDL-C)比值以及颈动脉粥样硬化性狭窄与脑梗塞发病的关系，并探讨其预测脑梗塞发生的价值。方法 应用彩色多普勒显保仪对非脑梗塞组患者328例(高血压198例、糖尿病82例、高血压伴糖尿病48例)和脑梗塞组患者260例进行颈动脉检测，观察颈动脉狭窄程度；同时检测两组患者的LDL-C/HDL-C比值水平。结果 脑梗塞组颈动脉重度狭窄发生率明显高于非脑梗塞组(P＜0．01)；LDL-C/HDL-C比值水平及异常率也明显高于非脑梗塞组(P＜0．01)，相关分析显示与甘油三酯(TG)、总胆固醇(Tch)、LDL和HDL-C相比，该比值显示了更有意义的与脑梗塞的相关关系(β＝0．357，P＝0．001)，经多元逐步回归分析显示，与TG、Tch、LDL-C和HDL-C相比，该比值显示了更有意义的回归关系，其标准方程式为：γ(脑梗塞)＝0．339(糖尿病史) 0．278(LDL-C) 0．187(高血压史)(P＜0．贴，复相关系数为0．534)。结论 应用颈动脉超声判定颈动脉重度狭窄和检测LDL-C/HDL-C比值水平及异常率对预测脑梗塞的发生有一定的实用参考价值。     

益肾养心通督针法对中风患者载脂蛋白的影响:附27例临床疗效观察

目的　观察益肾养心通督针法对中风患者载脂蛋白及临床疗效的影响。方法与结果　将 5 0例中风患者的载脂蛋白A(Apo A1 )、载脂蛋白 B(Apo B1 0 0 )与正常人比较 ,再将 5 0例中风患者随机分为益肾养心通督组 2 7例 (观察组 )和阳明经穴组(对照组 ) 2 3例 ,均治疗 30 d,观察治疗前后 Apo A、B变化 ,神经功能缺损积分及总体疗效。针刺后 Apo A1 升高 Apo B1 0 0 降低 ,神经缺损评分较治疗前大幅度降低。两组比较存在显著性差异 (P<0 .0 1)。结论　在改善载脂蛋白水平和临床疗效方面 ,观察组都优于对照组 (P<0 .0 5 )     

应用RT-PCR法分析人脂肪细胞载脂蛋白E基因表达

目的　建立人脂肪细胞载脂蛋白E基因表达检测方法。方法　采用竞争性逆转录 -聚合酶链式反应 (RT -PCR)方法分析儿童脂肪细胞的载脂蛋白E基因表达。结果　载脂蛋白E基因能在儿童脂肪细胞表达 ,儿童载脂蛋白E基因表达量为( 0 41± 0 12 )。结论　采用竞争性逆转录 -聚合酶链式反应方法检测人脂肪细胞载脂蛋白E基因表达方法快速、简便、灵敏、实用、可靠 ,且能准确定量 ,值得推荐