脑穹隆

There were five rats in every group. And their fimbria/fornix was transected in order that AD models were made.

在脑立体定位仪上切断穹隆海马伞，建立模拟AD动物模型。

Objective To observe the expression of nicotinic acetylcholine receptor in the brain's fimbria/fornix transected rats, the effect of ectogenic estrogen on it, and its relation with Alzhelmer's disease.

目的 以双侧穹隆海马伞切断制作阿尔茨海默病大鼠模型，观察脑内海马CA1区和皮层区烟碱型乙酰胆碱受体表达的变化，探讨与 AD相关的发病机制，并观察雌激素的干预作用。

The bilateral fimbria-fornix of brain was transected in the fimbria/fornix transaction group.

在脑立体定位仪上，切断大鼠脑的双侧穹隆海马伞同时切除双侧卵巢，建立模拟AD的动物模型。

It has not been reported that effects of agmatine on discharges of hippocampal and subfornical organ neurons.

有关胍丁胺对离体大鼠海马脑片CA1区锥体细胞层放电和离体大鼠穹隆下器神经元放电的影响，迄今未见报道。

The cells expressing nAchR clearly decrease in the areas of CA1 and cortex of rats when their fimbria/fornix is transected, but the cell number increases significanly if ectogenic estrogen is added. The change in nAchR is closely relative with AD whose pathological course can be influenced by the intervention of estrogen.

穹隆海马伞切断组大鼠脑内海马CA1区、皮层区nAchR的阳性细胞显著减少，补充外源性雌激素治疗后，上述各脑区内的nAchR表达显著增加。nAchR的变化与AD的病理变化过程密切相关，补充雌激素可以干预这种病理过程。

The cell suspensions were injected into the hippocampus of rat which had received unilateral transection of fimbria-fornix before one week. 5,7,14,30,60,90,150 and 180 days after grafting, the rats were perfused and postfixed, cut section. A series of every second and third sections were used for NOS enzyme histochemistry and Nissl histochemistry.

将大鼠14～16d胚胎的基底前脑移植到单侧穹隆海马伞切断的成年大鼠海马内，动物在移植后存活5、7、14、30、60、90、150和180d分别取脑，经NADPH-d法和尼氏染色观察。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。