查询词典 tyrosine

Objective: To study the abnormity of tyrosine kinase signaling pathway in different prognosis patients with lung adenocarcinoma.

目的：探讨不同预后的肺腺癌患者在酪氨酸激酶信号传导通路上的具体差异。

Isolation, cultivation and identification of human embryonic NSC from cerebral cortex of 7-12 week abortus. By using flow cytometry and MTT assay, the effects of various concentration of TSPG and TSPG cooperating with cytokines in NSC culture media for 3 days on proliferation of human embryonic NSC has studied. By employing immunocytochemistry assay of the expression of tyrosine hydroxylase, the effect of different dilution of TSPG and TSPG cooperating with IL-1 on induced differentiation of human embryonic NSC into dopaminergic neuron has researched.

从7～12周人工流产胚胎脑组织中分离培养人胚胎NSC，免疫细胞化学鉴定NSC特异性nestin抗原表达，在NSC的培养体系中加入TSPG，采用流式细胞术和MTT法检测不同浓度TSPG以及TSPG与EGF，bFGF联合应用对人胚胎NSC增殖的影响；经免疫细胞化学检测培养细胞酪氨酸羟化酶表达，分析不同浓度TSPG以及TSPG与IL-1联合应用对NSC定向诱导为DA能神经元的影响。

There are several cell signalings involved in sperm acrosome reaction, such as G protein-coupled signal transduction, and receptor tyrosine kinase signal pathway.

精子顶体反应过程中涉及多种细胞信号传导的过程，如G蛋白耦联的信号传导、受体酶氨酸激酶途径等。

At baseline and on day 1, 3, 7, 14, 21 following MPP+ injection, the degree of microglial activation was examined by detecting the immunodensity of OX-42 in the substantia nigra. The number of viable dopaminergic neurons was determined by measuring tyrosine hydroxylase positive neurons in the SN. Behavioral performances were evaluated by counting the number of rotations induced by apomorphine, calculating scores of forelimb akinesia and vibrissae-elicited forelimb placing asymmetry.

分别在基线、MPP+注射后第1、3、7、14、21天时通过测定黑质区域OX-42的免疫荧光强度评定小胶质细胞的激活程度，测定酪氨酸羟化酶的表达情况评定存活多巴胺神经元的数量；通过阿朴吗啡诱导的旋转行为、前肢跨步及触须引发的不对称放置试验得分测评行为学表现。

A gene encodes a polypeptide 30 amino acids long containing an alternating sequence of phenylalanine and tyrosine.

对应于这一肽链，下列分子的核苷酸序列是什么？

Retinyl palmitate peptide contains polypeptides of L-Tyrosine that stimulates secretion of dopamine, an arouser of your wild passionate of love pleasures.

点烧激情-棕榈肽中含L-酪氨酸的多肽促进多巴胺的分泌产生冲动。

Aim:(1) The purpose of this study is to examine whether protein tyrosine kinase and AMPA receptor in the nucleus tractus solitarius and nucleus ambiguus were involved in the regulation of normoxia and hypoxia respiratory response by microinjection of PTK inhibitor and non-NMDA receptor antagonist;(2) To observe the change of number of phosphotyrosine immunopositive neurons in NTS and NA before and after hypoxia using immunohistochemical methods and whether tyrosine phosphorylation and GluR1 in postsynaptic membrane co-localize in NTS and NA neurons.

目的：(1)观察向家兔脑干孤束核或疑核内微量注射酪氨酸蛋白激酶阻断剂和谷氨酸AMPA受体阻断剂对常氧呼吸和低氧呼吸反应的影响，探讨PTK和AMPA受体在低氧呼吸反应中的作用。(2)观察低氧通气后NTS和NA磷酸化酪氨酸免疫阳性神经元的数量变化；观察磷酸化酪氨酸和AMPA受体亚单位GluR1在突触后膜共存的情况，推测在低氧呼吸反应中AMPA受体和PTK信号转导途径的关系。

1、Cur inhibits K562 cells growth and induces cell apoptosis may be correlated with the down-regulation of p210~、inhibition of protein tyrosine phosphorylation and the signaling molecules such as p-Erk1/2、c-myc which are relevant with cell growth and apoptosis; 2、Cur synergizes STI571 to inhibit K562 cell growth and induce cell apoptosis may be correlated with the down-regulation of p210~、inhibition of protein tyrosine phosphorylation and the signaling molecules such as Hsp90、PKC which are relevant with cell growth and apoptosis; 3、Cur reverses the resistance of K562/G01 cells to STI571, and synergizes STI571 to inhibit K562/G01 cell growth and induce cell apoptosis; 4、Cur inhibits human originated CML CD34~+ cell growth、induces cell apoptosis, and enhances STI571 to down-regulate the expression of p210~, finally inhibit cell growth and induce cell apoptosis.

从以上实验结果我们得出如下结论： 1、Cur抑制K562细胞增殖、诱导细胞凋亡的作用可能与其下调p210~、蛋白酪氨酸磷酸化水平以及抑制下游p-Erk1/2、c-myc等信号分子有关； 2、Cur协同STI571抑制K562细胞增殖、诱导细胞凋亡的作用可能与其下调p210~、蛋白酪氨酸磷酸化水平以及抑制Hsp90和下游PKC等信号分子有关； 3、Cur可逆转K562/G01细胞对STI571的耐药性，并与STI571协同抑制K562/G01细胞增殖和诱导凋亡，其抑制K562/G01细胞增殖、诱导细胞凋亡的作用可能与其下调p210~、蛋白酪氨酸磷酸化水平以及抑制下游Procaspase-3和NF-κB等信号分子有关； 4、Cur可抑制来源于CML患者骨髓的CD34~+细胞的增殖并诱导其凋亡，还可协同STI571下调CML CD34~+细胞p210~表达，进而协同抑制细胞增殖、诱导细胞凋亡。

The experimental results show that in the presence of acetic anhydride, the L-tyrosine can be completely racemized and converted into DL-tyrosine both in NaOH aqueous solution and in acetic acid solvent, and moreover, in the presence of acetic anhydride

今讨论了在碱性水溶液中，L-酪氨酸、乙酸酐和NaOH三者摩尔比例对消旋过程的影响和在纯乙酸溶剂中，乙酸用量和L-酪氨酸与乙酸酐的摩尔比例与消旋温度对消旋过程的影响。结果表明在乙酸酐的作用下，L-酪氨酸在纯乙酸溶剂中的消旋具有消旋速度快，DL-酪氨酸收率高的优点。

The FLT3 (FMS-like tyrosine kinase 3) gene encodes a membrane-bound receptor tyrosine kinase that has a crucial role in normal haematopoiesis.

FLT3为膜结合受体酪氨酸激酶，在正常造血中起重要作用。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。