儿茶

These are thought to adhere to a kind of polyphones known as catchiness, preventing them from carrying out their health-making work.

研究者认为它们会附着在一种叫儿茶酚的多酚上，使之无法发挥保健功效。

Also inhibits catecholamine secretion in intact and permeabilized chromaffin cells.

还抑制完整和透性化嗜铬细胞的儿茶酚胺分泌。

This pheochromocytoma demonstrates the chromaffin reaction. This neoplasm of the adrenal medulla contains catecholamines.

嗜铬细胞瘤显示嗜铬反应阳性，该肾上腺髓质肿瘤含有儿茶酚胺(肾上腺素和去甲肾上腺素)。

Using the carbon fiber electrode the quantal release of catecholamine induced by 60mmol/L KCl in chromaffin cells has been measured.

而用微碳纤电极则能检测到吹加60mmol／LKCl导致嗜铬细胞胞吐时儿茶酚胺的量子化释放。

The results showed coadministration of PCA significantly increased the Cmax of MTX and oregano decoction significantly increased the systemic exposure of MTX.

结果显示，原儿茶酸显著增加 MTX 之血峰浓度；MTX 和北茵陈水煎剂并服时显著增加 MTX 的全身暴露量及平均滞留时间。

Materials and methods: Postoperative specimens from human parotid and submandibular glands were used. The glyoxylic catecholaminergic histofluores-cence method was employed on the tissues to study the sympathetic innerve-tion. One percent neutral red was used as a counterstain.

本研究以人类下颌下腺及腮腺切除的标本，应用甘草酸与儿茶胺形成之组织萤光法（glyoxylic catecholaminergic histofluorescence method），并采用1%中性红作对照染色，探讨2大唾液腺的交感神经分布。

Three major anthocyanins of blood orange were isolated. HPLC-ESIIMS analysis results show that the anthocyanins of blood orange are mainly cyanidin-3-glucoside (35.2%) and cyaniding-3-(6"-malonyl) glucoside (42.9%). Furthermore, cyanidin-3-(3"-malonyl) glucoside, cyanidin 3-(6-dioxalyl) glucoside and cyanidin-3-glucoside adduct: 4-vinylcatechol were identified in blood orange.

HPLC-ESI/MS分析表明，血橙花色苷主要是为矢车菊素-3（3&-丙二酰）葡萄糖苷和矢车菊素-3（6&-二乙二酰）葡萄糖苷（组分1），矢车菊素-3-葡萄糖苷（组分2），矢车菊素-3（6-丙二酰）葡萄糖苷（组分3）及矢车菊素－3-葡萄糖苷加成物4-乙烯基儿茶酚（组分4）。

Specificity studies on the substrate revealed that the HdPO was capable of oxidizing not only the o-diphenol, but also tyrosine. The apparent Km value on tyrosine was about 9.52 mmol/L. As shown in the experiments, HdPO behaved oxidizing activities both on diphenol and monophenol, which implies that the HdPO was probably not only a type of tyrosinase-type PO but also a catechol-type.

底物特异性研究还发现此HdPO不仅对邻苯二酚具有氧化活性，对酪氨酸底物也具有氧化活性，且对酪氨酸的Km值约为9.52mmol/L，说明该酶既具有酪氨酸酶活性，又具有儿茶酚酶活性。

Urine VMA level is a useful marker to detect extra-adrenal pheochromocytoma and CT scan is the most reliable in localizing the lesions.131-MIBG scintigraphy is of great value for the localiza-tion and quantitative for extrarenal pheochromocytoma with high sensitivity and accuracy.It may be also used as a therapeutic method.

VMA及血、尿儿茶酚胺是定性诊断异位嗜铬细胞瘤的主要依据，CT诊断定位准确、131碘-间位碘代苄胍(131I-MIBG)定位准确、敏感性高，且可作为治疗措施。

Rats of pancephalic ischemia and reperfusion were establ- ished with gyral vessel closing method by pulsinelli. SOD and MDA in cerebral tissue, transmitter content of catecholamine in hippocampal gyrus. striatum and neocortex, and patho- morphism of cerebral tissue of experimental animals were stu- died by piercing Baihui to Qubin of rats with filiform needle.

本课题采用Pulsinelli四血管关闭方法建立大鼠全脑缺血再灌注模型，对比观察了毫针透刺大鼠百会至曲鬓穴区对实验动物脑组织中SOD、MDA，海马、纹状体、新皮层中的儿茶酚胺递质含量及脑病理组织形态等方面进行研究。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷