THE AGGLUTINATION OF RED BLOOD CELLS IN THE PRESENCE OF BLOOD SERA

1. The addition of blood serum displaces the optimum for agglutination of red blood cells in a salt-free medium to the reaction characteristic of flocculation of the serum euglobulin. 2. This effect is not due merely to a mechanical entanglement of the cells by the precipitating euglobulin, since at reactions at which the latter is soluble it protects the cells from the agglutination which occurs in its absence. 3. A combination of some sort appears therefore to take place between sheep cells and sheep, rabbit, and guinea pig serum euglobulin, and involves a condensation of the serum protein upon the surface of the red cell. 4. At the optimal point for agglutination of persensitized cells both mid- and end-piece of complement combine with the cells. 5. Agglutination is closely related to an optimal H ion concentration in the suspending fluid, and probably of the cell membrane, and not to a definite reaction in the interior of the cell.     

HEMOLYSIS OF CHICKEN BLOOD

1. The time-dilution curves are given for the hemolytic action of saponin, sodium taurocholate, and sodium oleate on nucleated chicken erythrocytes. 2. Saponin and sodium taurocholate cause hemolysis but leave the nuclei and ghosts in suspension, thereby making the end-point of hemolysis more arbitrary than the clear end-point for non-nucleated cell hemolysis. 3. The curves of hemolysis by saponin and taurocholate are shown to be of the same nature as are found in the hemolysis of non-nucleated cells. 4. Sodium oleate causes first hemolysis and then, in the stronger solutions, causes karyolysis. Two pairs of values for κ and c = ∞ are thus obtainable for the same reaction, one pair for the destruction of corpuscular membrane, the other pair for the destruction of the nucleus. 5. Viscosity changes are found in the lysin-cell system with strong concentrations of sodium taurocholate and sodium oleate. Time-viscosity curves are given for these changes. 6. Microscopically, the action of these lysins on the nucleated chicken red cell appears to be similar to their action on the non-nucleated erythrocytes.     

复方南瓜口服液对小鼠血糖,血脂影响的实验研究

复方南瓜(Cucurbita moschata)口服液对正常小鼠无降血糖作用,但能显著降低四氧嘧啶糖尿病小鼠血糖值;显著降低正常小鼠总胆固醇(TC)和甘油三酯(TG);显著降低高胆固醇血症小鼠血清TC,同时显著升高其高密度脂蛋白胆固醇(HDL-C)及其亚组分Ⅱ(HDL_2-C)水平,亚组分Ⅲ(HDL_3-C)无显著变化。     

大熊猫血液成分的测定

本文报道了对十二只大熊猫的血液成分含量进行三十二项测定的结果,其中包括血液固体结构、无机元素、蛋白质及其代谢产物、脂类、糖分及酶活力等等,对血液指标的变化同大熊猫体况的关系进行了初步观察分析。血红蛋白含量、红细胞数量、白细胞数量、白蛋白含量、球蛋白含量、总脂含量、胆固醇含量和非蛋白氮含量随体况不同而变化的趋势。比较了大熊猫、小熊猫和美洲黑熊的血液指标,大熊猫没有呈现接近后两者的倾问。     

血雉的声谱分析

本文采用野外实地录音,室内语图分析和制图的方法,对血雉的呼吸声、报警叫声、取食叫声、争食叫声、联络叫声等５种鸣声的频率变化范围和持续时间进行了分析,并探讨了不同的鸣声与其相应行为的关系。／     

血液的超声衰减研究

本文从细胞声吸收、细胞相对血浆的粘滞运动和细胞声散射三种机制出发,论讨了血液中细胞级结构对其超声衰减的贡献,与实验结果有较好的符合。分析表明,细胞级结构对超声衰减的贡献中,细胞吸收占主导地位,相对粘滞运动损耗贡献不超过15％,而细胞引起的声散射可以略而不计。     

PHYSIOLOGIC MONITORING OF BLOOD GLUCOSE

The technique of continuous chemical analysis in vivo gives promise of real value in medicine. Applied to physiologic monitoring of blood glucose, it provides an invaluable tool for the study of labile diabetes and metabolic problems. Its use during surgical procedures and in post-operative management of such patients and in teaching is to be encouraged.