抗原

Exactly. But type O is called the "universal donor" since it doesn't have any antigens that would set off the body's defense system.

完全正确。而O型血之所以被称为"万能血"，是因为它没有任何抗原，不会和身体的防卫系统相抵触。

Y: Exactly. But type O is called the "universal donor" since it doesn't have any antigens that would set off the body's defense system.

很正确。之所以O型血的人被称做万能供血者，是因为他没有任何抗原会攻击人体的防御系统。

Intimal areas were measured using morphometric analysis of perfusion-fixed vein graft specimens, and intimal thickness was calculated using circumferential measurements. The SMC proliferation was studied by the immunohistochemical detection of proliferating cell nuclear antigen. Expression of MMP-2、MMP-9 mRNA in vein grafts and unoperated control Vein grafts was detected by reverse transcription polymerase chain reaction. Substrate gel zymography was used to determine the proteolytic activity.

分别行HE染色、Verhoeff弹性纤维染色观察组织病理变化，计算机病理图象分析系统测量新生内膜厚度及面积，免疫组织化学方法检测静脉壁增殖细胞核抗原表达以观察细胞增殖情况，半定量逆转录-聚合酶链反应检测静脉壁基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶-9(MMP-9)mRNA的表达，明胶酶谱法检测MMP-2、MMP-9活性，比较各组之间的差别。

At the 8th week cellular immunity was detected by an unprimed proliferation test of the spleenocytes by using a [^3H]-thymidine incorporation assay.

目的观察携带弓形虫表面抗原复合基因重组沙门氏菌经口免疫BALB/c小鼠所诱导的免疫反应。

The challenge of achieving improved monitoring of all transplant patients may allow tailoring of immunosupression in a proportion of recipients thereby increasing the opportunities for the induction of specific unresponsiveness to donor alloantigens in the future.

未来的挑战是，对移植患者的免疫系统进行良好的监测，应用个体化的免疫抑制方案，从而增加诱导针对供体同种抗原特异性免疫无反应性的机会。

Unresponsiveness to an antigen that normally produces an immunological reaction.

抗原性物质antigenicity substance 能刺激机体免疫系统，发生免疫反应的物质。

Unresponsiveness to an antigen that normally produces an immunological reaction.produce immunity in by inoculation.

为了产生或增强对某种疾病的免疫能力，用预防针把抗原性物质注射进人或动物的身体内。

In vitro and in vivo experiments were also performed on minigenes encoding tumor antigen peptides carried by vaccinia virus.

受体介导的细胞内吞在免疫系统的细胞中是一种相当常见的现象，这一现象主要见于专职抗原递呈细胞如树突状细胞、巨噬细胞和B细胞。

In this thesis, some of these questions have been studied in detail by expressing the antigenes of RSV、hepatitis A virus and hepatitis B virus in the vaccinia vector.

本论文通过对RSV、HAV和HBV等多种抗原在痘苗病毒载体中表达，对基因工程活疫苗面临的一些基本问题进行了详细研究。

Histopathological studies on the patients with positive reactions showed slight spongiosis and focal vacuolation in the reaction sites of the skin at 24 h after patch test,as well as slight exocytosis of eosinophils.

为进一步了解镍过敏在广东地区湿疹或皮炎患者中的发生情况，我们采用欧洲标准抗原系列进行斑贴试验，并对不同时相硫酸镍阳性反应皮肤进行组织学观察

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。