酪氨酸

METHODS We performed immunohistochemical staining on 192 circumferential venoatrial segments (32 veins) harvested from 8 autopsied human hearts using antibodies to tyrosine hydroxylase and choline acetyltransferase.

研究者利用酪氨酸羟化酶及乙酰胆碱转移酶抗体对从8名尸解的人体心脏中采集的192例肺静脉同左心房连接处周缘的肌肉片断（32个静脉）进行免疫组织化学染色。

Results When the concentration of Vernonia anthelmintica Willd was range from 1mg·L^-1 to 40 mg·L^-1 , a proliferation inhabiting effect was shown with the increase of the concentration.

目的探讨驱虫斑鸠菊提取物对人恶性黑色素瘤A375细胞的增殖以及对其酪氨酸酶活性和黑色素含量的影响。

Vernonia anthelmintica ; tyrosinase ; murine melanoma cell

驱虫斑鸠菊；酪氨酸酶；白癜风；鼠黑素瘤细胞

Methods MTT was used to study the proliferation of A375 human melanoma cell. Tyrosinase activity was measured by zymologic method. The melanin was detected by its absorption at 475nm.

方法四甲基偶氮唑蓝法测定验方对细胞增殖的影响，用酶学方法测定对酪氨酸酶活性的影响，475nm比色法测定验方对黑素含量的影响。

Elevated levels of phosphatase and tensin homolog deleted on chromosometen have been reported in mammary gland tumors in humans.

有关酪氨酸磷酸酶基因(Phosphatase and tensin homolog deleted on chromosometen，PTEN)在乳腺肿瘤中的检测在人医早有报道。

Melanin is produced from the amino acid tyrosine; albinos lack the enzyme that catalyzes that reaction.

黑素是从氨基酸酪氨酸产生的；白化马就是因缺乏来催化这种反应而引起的。

Melanostat counterbalances the formation of melanin and especially the synthesis of tyrosinase, key enzyme involved in the process of pigmentation.

Melanostat抵消黑色素的形成，特别是酪氨酸酶的合成，关键酶的色素沉着过程。

The decay of SO·4- decelerates with increasing volume fraction of ACN in mixed media whereas the decay of TyrO· accelerates.

随介质中乙腈体积分数的增加，SO·4-的衰变速率减慢而酪氨酸中性自由基的衰变速率加快。

Tyrosine-phosphorylated CagA specifically binds and deregulates SHP-2 ia the Western CagA-specific EPIYA-C or East Asian CagA-specific EPIYA-D site, and C-terminal Src kinase ia the EPIYA-A or EPIYA-B site.

酪氨酸磷酸化的CagA分别通过CagA-特异性EPIYA-C或者CagA-特异性EPIYA-D和EPIYA-A或者EPIYA-B来特异性与SHP-2和C-末端Src激酶结合和解除。

EphA2 as a part of RTKs superfamily is lower expressed in various kinds epitheliums usually.It was found higher expressed in many tumor tissues recently.It takes part in the regulation of the grew、exist、migrate and invasion of tumor cells,it is also involved in the formation of the tumor vessel and vasculogenic mimicry.

EphA2作为受体酪氨酸激酶(receptor tyrosine kinases，RTKs)家族成员之一，通常以相对较低的水平表达在成人各种上皮细胞中，近来研究发现其在许多肿瘤中高表达，参与调节肿瘤细胞的生长、生存、迁移和侵袭，还涉及肿瘤血管和血管生成拟态的形成。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。