十大健康食品

豆类食品含丰富的优质蛋白质(30％—45％)、不饱和脂肪酸(占大豆脂肪的85％)、钙(426mg/100g）及B族维生素．因而被誉为“植物肉”。大豆中的豆固醇与畜禽肉等动物性食品不同．可降低血清总胆固醇，使低密度脂蛋白胆固醇(LDL)下降。此外．大豆富含钾，对心血管健康有益；还有含量丰富的异黄酮，对防治骨质疏松．阻断与抑制癌的发生也有良好作用。     

茶多酚的抗低密度脂蛋白氧化作用

低密度脂蛋白(LDL)的氧化是动脉粥样硬化的特征之一，在脂肪沉着性动脉硬化斑块中有氧化修饰的LDL，但是正常的动脉壁没有。LDL颗粒的氧化修饰可以决定动脉粥样硬化的发生和发展。流行病学研究显示，茶叶和茶叶提取物茶多酚的摄入，与动脉粥样硬化引起的冠心病、心肌梗塞和中风导致的死亡呈负相关，其机制在于作为天然饮料的茶叶中的茶多酚能在体内抑制铜催化的、紫外线诱导的和巨噬细胞介导的LDL氧化。……     

谷氨酰胺与鸡卵黄低密度脂蛋白提高猪精液冷冻效果的研究

为提高猪精液冷冻保存效果,在9％鸡卵黄低密度脂蛋白(LDL)冷冻稀释液的基础上,研究了添加不同浓度的谷氨酰胺对猪精液冷冻效果的影响.结果表明:在LDL冷冻稀释液中添加谷氨酰胺可显著提高猪精子冷冻效果(P＜0.05),较适宜添加量为40 mmol/L.     

美国:苹果可降低心脏病发病率

来自佛罗里达州立大学的一组研究人员指出,绝经后女性易患心脏病或中风,如果每天吃两个苹果则可以降低发病率,长期坚持还可使胆固醇降低约25%。此项研究涉及160名绝经女性。供试人员一半的人每天吃75g苹果干(相当于两个中等大小的新鲜苹果),另一半被告知吃同样数量的梅子干。一年中,对每位供试人员进行血液测试,每3     

银丹心脑通联合小剂量辛伐他汀治疗高血压合并高脂血症临床观察

目的 探究银丹心脑通软胶囊联合小剂量辛伐他汀对老年高血压合并高脂血症患者的影响。方法 采用随机数字表法将老年高血压合并高血脂症患者214例分为观察组与对照组,对照组采用辛伐他汀,观察组患者采用银丹心脑通软胶囊联合小剂量辛伐他汀治疗;对比两组患者血液流变学指标、血脂、血压、IL-6、ox-LDL及hs-CRP水平。结果 观察组患者治疗后全血高切黏度、全血低切黏度、血浆黏度纤维蛋白原及红细胞聚集指数均明显低于对照组（P<0.05）;观察组患者治疗后TC、TG、LDL-C明显低于对照组（P<0.05）,HDL-C明显高于对照组（P<0.05）;观察组患者治疗后IL-6、hs-CRP及ox-LDL显著低于对照组（P<0.05）;观察组患者治疗后收缩压及舒张压均显著低于对照组（P<0.05）。结论 银丹心脑通软胶囊联合小剂量辛伐他汀治疗老年高血压合并高脂血症患者能够有效纠正其血液流变学代谢紊乱,调节血脂水平,减轻炎性症状,降低血压水平。     

Conjugated Linoleic Acid and Dietary Fats Differentially Affect Hepatic ACAT Activity and LDL-Cholesterol in Postweanling Pigs Fed Low-Fat Diets1

ABSTRACT：Two separate studies tested the hypoth- esis that plasma low-density lipoprotein cholesterol LDL-C ） can be decreased by conjugated linoleic acid （CLA） by depressing hepatic acyl-coenzyme A： cholesterol acyltransferase （ACAT） activity. In the first experiment, 3 groups of 6 early-weaned piglets were fed low-fat diets containing either 1.5% CLA, 1.5% corn oil or 1.5% beef tallow;fat provided 8% of the energy intake. In the second experiment, 4 groups of 6 early-weaned piglets were fed high-fat di- ets containing either 15% beef tallow, 12% beef tal- low plus 3% CLA, 15% corn oil, or 12% corn oil plus 3% CLA; fat provided 29% of energy intake. Cholesterol was balanced across diets in both experi-ments. In pigs fed the low-fat diets, all dietary fats in- creased LDL-C and triacylglycerols and decreased high-density lipoprotein cholesterol （ HDL-C ） and very low-density lipoprotein cholesterol （VLDL-C）. LDL-C was the same in pigs fed low-fat tallow or low-fat CLA diets. However, ACAT activity was near- ly 80% higher in pigs fed the low-fat tallow diet than in pigs fed the low-fat CLA diets. All high-fat diets increased LDL-C, HDL-C and triacylglycerols equally with no effect on VLDL-C. There were no unique fat- ty acid effects of the high-fat diets on ACAT activity. We conclude that supplemental fats had differential effects on hepatic ACAT activity and LDL-C, but on- ly in pigs fed low-fat diets.     

Antioxidant Effects of Oats Avenanthramides on Human Serum

The antioxidant ability of capsules containing oats avenanthramides on human body was evaluated in present study.Healthy people were randomized to supplementation with oats-derived avenanthramides capsules or placebo for 1 mon.Plasma lipid peroxides and antioxidant status were measured.For 8 capsules (containing 3.12 mg avenanthramides)groups,the levels of serum superoxide dismutase (SOD) and reduced glutathione hormone (GSH) were significantly increased by 8.4 and 17.9％,respectively (P＜0.05),and malondialdehyde (MDA) level significantly decreased by 28.1％.The total cholesterol (TC),triglyceride (TG),and low density lipoprotein cholesterol (LDL-C) levels were lowered by 11.1,28.1,and 15.1％,respectively (P＜0.05).The high density blood lipoprotein cholesterol (HDL-C) levels in the same treat was increased by 13.2％.Based on our research,it can be concluded that oats extract containing avenanthramides possessed a high antioxidative activity on humans.It indicated that oat avenanthramides could be used to prevent hyperlipemic and angiocardiopathy.     

共轭亚油酸对生长猪生产性能和血脂含量的影响

试验选用体重30 kg左右的社长大三元杂交猪64头,分为4个处理,每个处理4个重复,每个重复4头猪,分别饲喂含共轭亚油酸(CLA)0%,0.25%,0.5%,0.75%的日粮.试验期为60 d.试验结果表明各试验组猪的日增重、料肉比与对照组相比差异均不显著(P＞0.05);添加共轭亚油酸0.5%组与对照组的背膘厚差异显著(P＜0.05);随着CLA添加水平的提高,生长猪血液中总胆固醇(CHO)含量、低密度脂蛋白(LDL)含量显著降低(P＜0.05),而血液中高密度脂蛋白(HDL)含量、上清液胆固醇含量和HDL与LDL比值差异不显著(P＞0.05).     

鹅肥肝生产技术

<正>"鹅肥肝",是指达到一定日龄、机体成熟的仔鹅,在短时间内通过人工强制方法,填饲大量高能量饲料使脂肪沉积于肝脏而形成比正常肝大若