补充苹果酸低聚糖饮料对自行车运动员有氧做功能力的影响

摘要：苹果酸不仅是三羧酸循环的中间代谢产物．同时又是苹果酸天冬氨酸穿梭的组成部分．对促进有氧代谢起着重要的调节作用。研究观察苹果酸低聚糖饮料对公路自行车运动员力竭性运动及亚极量做功能力的影响。结果表明：补充低聚糖饮料和苹果酸一低聚糖饮料均可使运动至力竭的时间明显延长；补充苹果酸低聚糖饮料，在完成力竭性运动后乳酸恢复曲线参数b2明显低于补充前，曲线“变陡”；运动中血糖水平明显提高；亚极量运动后血清酶GOT和GPT的升高幅度明显低于低聚糖组。提示：补充苹果酸低聚糖饮料可使耐力运动员在力竭性运动后乳酸消除速率加快，维持长时间亚极量运动中的血糖稳定，有利于延缓运动中的疲劳出现。     

脂蛋白脂酶(LPL)HindⅢ基因多态性与血脂和冠心病及运动关系的研究进展

脂蛋白脂酶（LPL）基因多态性与血脂及冠心病关系密切，因此目前对脂蛋白脂酶基因多念性研究相对较多，但主要集中在HindⅢ酶切位点。脂蛋白脂酶基因HindⅢ酶切位点多态件可产生3种基因型H^＋H^＋、H^＋H^-、H^-H^-,不同基因型与血脂成分及冠心病关系密切程度各异，另外，运动对不同基因型个体血脂影响不同。就脂蛋白脂酶HindⅢ酶切位点多态性与血脂和冠心病及运动关系作一综述。     

微透析法研究金属离子镉与人血清蛋白的相互作用

本文建立了一种新的方法──微透析法用于研究金属离子铺与人血清蛋白（Ｈｕｍａｎ Ｓｅｒｕｍ Ａｌｂｕｍｉｎ，简称ＨＳＡ）的相互作用．测定了金属离子Ｃｄ２＋与ＨＳＡ之间的结合位点数为１．８１和结合常数３．５５×１０５Ｍ－１微透析回收率Ｃｄ２＋为５８．３６％（Ｒ．Ｓ．Ｄ２．１％，ｎ＝６）．通过各种离子之间的竞争结合建立了通用的判定金属离子的共同结合位点及相对结合强度的方法．证明在ＨＳＡ上Ｃｄ２＋和Ｚｎ２＋有共同的第一结合位点，它们在ＨＳＡ上有一多元素的共同结合位点．应用本实验方法可以节约蛋白３／４以上，并具有精确、快速、方便等特点．     

雏鹅传染性法氏囊病的诊治研究

传染性法氏囊病(Infecfions Bursal Disease,IBD)一般仅发生于雏鸡,在雏鹅发生尚属少见?笔者首次发现于安徽五河。该病以30日龄雏鹅突然发病,下痢并伴有胸、腿部肌肉出血,法氏囊肿胀和出血,肾肿等病变。病死率为20.0％。经细菌学、病毒学和血清学检测,为IBDV所致,经用抗鸡IBD免疫血清治疗,治愈率96.3％。证实雏鹅为传染性法氏囊病。     

Serum proteins analysis by capillary electrophoresis

The purpose of this study was to evaluate the efficacy of multi-capillary electrophoresis instrument in clinical laboratory. An automated clinical capillary electrophoresis system was evaluated for performing serum proteins electrophoresis and immuno-fixation electrophoresis by subtraction. In this study the performance of capillary electrophoresis was compared with the cellulose acetate membrane electrophoresis and agarose gel immunofixation electrophoresis for serum proteins. The results of capillary electrophoresis and cellulose acetate membrane electrophoresis were good (r=0.89∼0.97) for protein fractions and A/G ratio except for β-gobulin fraction (r=0.60). Both within-run and day to day precisions (CVs) of assay results for 5 main fractions and A/G ratio (n=10) were between 0.3∼6.3%. The reference ranges of serum protein fractions obtained from 200 healthy individuals by cellulose acetate membrane electrophoresis were almost equal to that of capillary electrophoresis except for α-1 globulin fraction. No significant difference of electropherograms between cellulose acetate electrophoresis and capillary electrophoresis was observed in the abnormal serum such as presence of bilirubin (<20mg/dl), hemoglobin (<300 mg/dl), lipid (Intralipos <1%) and samples from patients with acute phase response, liver injury, polyclonal hyper gammaglobulinemia or M-proteinemia. The method of capillary immuno-fixation electrophoresis by subtraction showed good agreement with agarose gel immunofixation electrophoresis by subtraction identifying 30 monoclonal gammmopathy patient samples.     

Standardization of a colorimetric method for the determination of fructose using o-cresol: Sulphuric acid reagent

Fructose developed a pinkish orange chromogen on treatment with o-cresol: 70% sulphuric acid at 32°C for 15 minutes with a λ max of 500nm. Fructose was 185 times more chromogenic than glucose. Total carbohydrate and fructose values in protein-free filtrate of normal serum samples were in the range, 55.4–86.3 mg/dl and 1.55–3.29 mg/dl, respectively. In diabetes, the observed values were 197–354 mg/dl and 2.91–6.81 mg/dl, respectively.     

Organochlorine pesticides BHC and DDE in human blood in and around Madurai, India

In this study blood samples are taken from two groups of people, one that has direct exposure to pesticides (agriculturists & public health workers) the second group, which has indirect exposure to pesticides through food chain. The objective of our investigation is to analyze the blood of the patients with minimum health complaints and skin diseases for the residue of the banned organochlorine pesticides DDE and BHC using Gas Chromatography. High concentrations of both BHC&DDE were observed in the serum samples of the people who had direct exposure to the pesticides, namely agriculturalists and public health workers with few exceptions. The pesticide residue concentration in serum ranges from 0.006 to 0.130 ppm for BHC and 0.002 to 0.033 ppm for DDE. Significance of this study reveals that the presence of these banned pesticides in human serum.     

药物处理心肌缺血大鼠有效性的研究

现代生物学表明，所有生物性状的变化是基因表达变化的结果．双向电泳是目前蛋白质常规分析技术中分辨率较高的方法．采用双向电泳技术分析了正常大鼠、心肌缺血模型大鼠、药物处理后的大鼠的血清蛋白组的差异，从而探讨利用双向电泳技术分析药物处理的有效性．     

稀土离子(III)与牛血清白蛋白结合作用的荧光光谱分析

模拟生理条件研究了稀土离子 (III)与牛血清白蛋白 (BSA)的结合性质 .荧光光谱表明 :Sm与BSA形成 2 .5 :1的配合物 ,条件常数 1gk =11.0 0 .Eu与BSA形成 2 .75 :1的配合物 ,条件常数为 1gk =12 .2 6 .     

N-十六烷基-羟乙基-二甲基溴化铵与牛血清白蛋白的结合作用

用荧光光谱法研究了298K时Tris-HC l缓冲溶液（pH=7.1）中季铵盐类表面活性剂N-十六烷基-羟乙基-二甲溴化铵（CHDAB）与牛血清白蛋白（BSA）的结合作用.考察了BSA浓度对结合作用的影响,用Stern-Volmer方程探讨了CHDAB在浓度较低区域与BSA的作用机制,用位点结合模型计算了CHDAB与BSA结合反应的结合常数KA和结合位点数n,用同步荧光技术考察了CHDAB对BSA构象的影响.结果表明：CHDAB对BSA的内源荧光有猝灭作用,并导致其最大发射波长蓝移;相同温度下,BSA浓度越小,其Stern-Volmer猝灭常数Ksv越大,CHDAB对BSA的猝灭作用越强,同时其结合常数也越大,结合越强;同步荧光光谱表明CHDAB对BSA构象产生了一定影响.