查询词典 acid

Objective:To investigate the effects of Ursolic acid on the apoptosis of glioma cell U251 in vitro.

目的：探讨熊果酸(Ursolic acid， UA)诱导脑胶质瘤U251细胞株凋亡的作用及机制。

AIM: To study the effects of ursolic acid on human MCF7 cell apoptosis and the mechanism probably involved.

目的：探讨中药成分熊果酸（ursolic acid， UA）诱导MCF7人乳腺癌细胞的凋亡作用，并通过UA作用后的MCF7细胞Bax， Bcl2， cytochrome c蛋白表达的变化，探讨其诱导MCF7细胞凋亡的分子机制。

RESULTS: A germacrane sesquiterpenoid, incaspitolide D (1), along with-N-benzoylphenylalanine--2-benzamido-3-phenyl- propyl ester (2), indole-3-carboxylic acid (3), apigenin (4), diosmetin (5) and luteolin (6) was isolated. CONCLUSION: Compounds 1-5 were isolated for the first time from Vernonia patula.

结果：分离到1个牻牛烷型倍半萜内酯， 1个苯丙氨酸衍生物、1个生物碱和3个黄酮化合物，根据波谱数据和X-衍射分析分别鉴定为：incaspitolide D (1)，-N-苯甲酰基苯基丙氨酸–-2-苯甲酰氨基–3-苯基丙酯(S-N-benzoylalanine-–2-benzamido-3-phenylpropyl ester， 2；吲哚-3-羧酸(indole-3-carboxylic acid， 3)；香叶木素(diosmetin， 4)，芹菜素(apigenin， 5)和木犀草素(luteolin， 6)。

They were two new compounds, [cyclo(Pro-Val-Phe-Phe-Pro-Val-Phe-Ser-Leu),7],[2-N-(1-methoxycarbonylethyl)guanosine, 10], and eight known compounds,(p-hydroxybenzoic acid, 1),(methyl succinate, 2),(russulaceramide, 3),(phenylalanine, 4),(guanine, 5),(β-carboline, 6),(uridine, 8), and (adenosine, 9). All the compounds were isolated from Amanita exitialis for the first time.

分别为：对羟基苯甲酸(p-hydroxybenzoic acid，1)、丁二酸二甲酯(methyl succinate，2)、神经酰胺(russulaceramide，3)、苯丙氨酸（phenylalanine，4）、鸟嘌呤核苷(guanine，5)、β-咔啉(β-carboline，6)、环（脯氨酸-缬氨酸-苯丙氨酸-苯丙氨酸-脯氨酸-缬氨酸-苯丙氨酸-丝氨酸-亮氨酸） [cyclo(Pro-Val-Phe-Phe-Pro-Val-Phe-Ser-Leu)，7]、尿嘧啶核苷(uridine，8)、腺嘌呤核苷(adenosine，9)、2-N-(1-甲氧羰基乙基)鸟苷[2-N-(1-Methoxycarbonylethyl)guanosine， 10]。10个化合物均为首次从致命鹅膏中分离得到，其中化合物7和10为新化合物。

Kanic acid was injected into guinea pigs' cochleae and the excitotoxicity model was established. After a week the recombinant plasmid was transferred into SGCs of guinea pigs' cochlea treated with HAT. The following week the expression of NT-3 was examined by the immunohistochemical method, and the morphology of SGNs was observed under the electronic microscope after 4 weeks, in the mean time the changes of auditory brain-stein response were examined.

通过耳蜗灌注海人酸(kainic acid， KA)建立豚鼠耳蜗兴奋性损伤模型，在给KA 1周后利用HAT携带重组质粒进行耳蜗灌注以转染耳蜗螺旋神经节细胞，免疫组化法观察转染后1周NT-3的表达及4周后电镜下螺旋神经节细胞形态学变化，同时观察对听觉脑干诱发电位(auditory brain-stem response， ABR)的影响。

MATERIALS AND METHODS: After the male and female ICR mice copulated, the presence of vaginal plug the following morning was considered as gestational day 0 (GD0). At GD9, GD10, GD11 and GD12, the pregnant mice in the treatment group were treated with 80 mg/kg all-trans-retinoic acid, and those of the control group received the same volume of soybean oil. At GD18, pregnant mice were killed and the embryos were harvested. The abnormalities of the embryos in the treatment group were studied.

材料与方法： ICR小鼠合笼后，查到阴栓当天为孕期第0天(GD0)，孕鼠共50只，随机分为GD9、GD10、GD11、GD12给全反式视黄酸(all-trans-retinoic acid，atRA)实验组和对照组，共5组，每组10只，实验组经口灌胃1次给予孕鼠80 mg/kg atRA，对照组则给予等体积的大豆油，于GD18将孕鼠处死并取出胎鼠，观察不同时间给予孕鼠atRA的胎鼠的短肢畸形情况。

In this contribution novel acid-base sulfonated poly(phthalazinone ether nitrile ketone)s membranes are introduced.The membranes are composed of SPPENKs as the acidic compounds,and polyetherimide as the basic compounds,furthermore,redissolving SPPENKs and PEI in N-methylpyrrolidone then cast directly onto clean glass substrates in dust free environment at 60℃ aiming at enhancing membrane toughness and other relative properties.

以合成的一系列不同磺化度的碘化聚芳醚腈酮为acidic聚合物，以聚芳醚酰亚胺为basic聚合物，并将其溶解在 N -甲基-2-吡咯烷酮中配成质量分数为10%的成膜液，60℃下刮制成膜，制得acid-base型磺化聚芳醚腈酮质子导电了聚合物膜。

Objective: To observe the effects of Losartan in serum uric acid and urinary albumin excretion rate of the patients with diabetic nephropathy.

目的 ：观察氯沙坦( losartan，科素亚)对 2型糖尿病肾病患者血尿酸( serum uric acid，UA)、尿白蛋白排泄率( urine albumin excretion rate，UAER)的影响。

The main colouring component is adhatodic acid and appearance of dye powder is brown.

该植物染料主要色素成份为adhatodic acid，染料为棕色粉末

Objective To explore the relationship between heart-type fatty acid-binding protein levels and the severity of the affected coronary artery in acute coronary syndrome and to analyze the relevant reasons.

目的：探讨心型脂肪酸结合蛋白（heart-type fatty acid-binding protein，H-FABP）与近期发作急性冠脉综合征的患者冠脉病变严重程度的相关性及原因。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了