灰白质

The dynamic changes of endothelin-1 in cerebrospinal fluid , brain tissues and plasma and ET〓-RNA expression in hypothalamus, hippocampus and temporoparietal grey and white matters were observed by radioimmunoassay methods and spot hybridization respectively.

四、建立双后肢高速、低速投射物致伤犬应激模型，应用核酸斑点杂交和放射免疫分析法，检测分析致伤前及致伤后10min、1h、2h、6h、8h，对犬的脑组织、血浆、脑脊液中的ET〓（内皮素-1）含量及海马、丘脑下部、颞顶叶灰、白质中ET〓-RNA表达的动态。

The results were as follows: ET〓-RNA expression levels in hypothalamus, hippocampus and temporoparietal grey and white matters of the low and high speed injury groups were elevated significantly than that of control group (p＜0.05), but in the above areas of brain, ET〓-RNA expression in hypothalamus and hippocampus were the highest (p＜0.01), especially in the high speed injury group; ET〓 contents in hypothalamus and hippocampus in the two injury groups, especially in the high speed injury group, increased very significantly than that of control group (p＜ 0.01); ET〓 contents in CSF and plasma in the two injury groups, also especially in high speed injury group, increased markedly after 2 hours, and lasted for 8 hours after injury; ET〓 contents in the abovt areas of brain were of highly positive correlation with that in plasma or in CSF.

实验显示：致伤犬伤后海马、丘脑下部、颞顶叶灰、白质内皮素—1RNA表达较对照组显著增强（p＜0.01，p＜0.05），其中以海马和丘脑下部最显著（p＜0.01），高速组最明显（p＜0.01）；海马和丘脑下部ET〓含量较对照组显著升高（p＜0.01）；血浆、CSF中ET〓含量在伤后2h即极显著升高（p＜0.01），并持续至伤后8h，上述各组均以高速组最为显著（p＜0.01）；各脑区和血浆，CSF中ET〓含量间呈显著正相关。

The effect of the overlaying tiss ue on the measurement can not be ignored because the most interested tissue to b e monitored is the deeper tissue layers,such as muscle and brain,which are under adipose or skull.Apart from this,variations of the regional hemoglobin oxygen s aturation (rsO2),haematocrit and regional blood volume hav e their influences on the measurement.

然而在人体组织这个复杂的不均匀混合介质中，深层组织往往是感兴趣的待测部位，如皮脂下的肌肉组织，头皮和颅骨下的脑灰白质等，这时外层覆盖组织的存在会直接影响检测的精度；另外，全血的局部氧饱和度( rsO2)的波动，红细胞比容的变化，以及血容积都对测量精度产生影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。