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蛋白
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  protein
    THE RELATIVE STUDY OF HEAT SHOCK PROTEIN 70 AND GASTROINESTINAL TUMOR
    热休克蛋白70与胃肠肿瘤相关性的研究
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    Antitumor Effects of the Fusion Protein Transmembrane Superantigen SEA
    跨膜型超抗原SEA融合蛋白的抗肿瘤作用研究
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    To Fish the Human UROC-28 Binding Protein by the Yeast Two Hybrid System
    酵母双杂交技术钓取人UROC28结合蛋白
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    Expression of Some Multidrug Resistant Gene and Protein in Breast Cancer Cases
    部分耐药基因和蛋白在乳腺癌病例中的表达
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    The Constructions of Heat-Shock Protein 70 and MAGE-1 Fusion DNA Vaccine and Protein Vaccine and Their Antitumor Effects in Vivo
    热休克蛋白70与MAGE-1融合基因疫苗和蛋白疫苗的构建及体内抑瘤效应的研究
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  gene protein
    Studying DNA Repair Capacity and Checkpoint Gene Protein (ATM Protein) of Lung Cancer Patients and Breast Cancer Patients
    肺癌和乳腺癌病人DNA修复能力及关卡基因蛋白(ATM蛋白)的研究
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    Quantitative study of P53 gene protein expression in the benign disease and cancer of breast
    P53基因蛋白在乳腺良性病变和癌细胞表达的定量研究
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    Loss of Rb gene protein expression and P_(53) gene mutation in human testicular seminoma
    人类睾丸精原细胞瘤组织中P_(53)基因突变和Rb基因蛋白产物表达的缺失
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    P53 GENE PROTEIN EXPRESSION OF BREAST CANCER CORRELATED WITH CLINICAL PROGNOSIS
    乳腺癌P53基因蛋白的表达与临床预后的关系
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    Expression of p53 Gene Protein in Squamous Cell Carcinoma and Precancerous Lesion of Vulva
    p53抑癌基因蛋白在外阴鳞癌和不典型增生组织中的表达
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    Immunity studies of HSP 70 complex on anti-human hepatocellular carcinoma
    热休克蛋白70复合物抗人肝癌免疫的实验研究
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    Cloning of Whole cDNA Sequence, Expression, Locating and Function Analysis of Stress Inducible Phosphoprotein Ⅰ Gene
    磷酸化应激诱导蛋白基因全长cDNA序列的克隆、表达、定位和功能研究
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    Characterization of a novel serine protease expressed by SNC19 (ST14) gene in human tissues
    一种新的丝氨酸蛋白酶——SNC19(ST14)基因编码蛋白的生物特性的研究
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    Enhancement of Sensitivity of Bladder Tumor Cells to MMC by Liposome Conjugated C-myc Antisense Oligonucleotides and Expression of C-myc Oncoprotein in Bladder Cancer
    反义c-myc寡核苷酸提高膀胱癌细胞对MMC的敏感性和c-myc癌基因蛋白在膀胱移行细胞癌表达的临床意义
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    Study of Specific Antitumor Immune Response Induced by GST-MAGE-3
    GST-MAGE-3蛋白诱导特异性抗肿瘤免疫应答的实验研究
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  protein
Polyamines May Modulate Both G Protein-Coupled Receptors and G Proteins
      
Heterodimerization of G-Protein-Coupled Receptors Reveals an Unexpected Level of Pharmacological Diversity
      
The Activation Mechanism of Class-III G-Protein Coupled Receptors
      
Hepatic glutathione, lipid peroxides, glutathione peroxidase, alcohol dehydrogenase, aldehyde dehydrogenase, glycogen and total protein in liver were also significantly altered.
      
3D QSAR STUDIES OF INHIBITORS OF CHOLESTEROL ESTER TRANSFER PROTEIN (CETP) BY CoMFA, CoMSIA AND GFA METHODOLOGIES
      
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  gene protein
The search is based on analysis of topology difference between the phylogenetic trees of gene (protein) groups and the corresponding phylogenetic species trees.
      
Leptin, the obesity gene protein product, is a hormone with multiple physiological functions in the human.
      
Given the clear importance of LRP5 in regulating bone mass, this gene/protein represents a potentially exciting new target for the development of anabolic agents to treat osteoporosis.
      
However, the discovery of the DMD gene about 20?years ago has allowed a change in the focus of therapeutic strategy dramatically toward delivery of the missing gene/protein.
      
DE inhalation affected the SP signaling processes, including stored SP depletion and the gene/protein overexpression for neurokinin-1 receptor.
      
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1. Changes in some enzymatic activities and content of -SH group of the skin of mice during carcinogenesis induced by methylcholanthrene were investigated.

(一)对表皮LDH、ATP酶、組織蛋白酶的某些性貭作了初步研究。(二)在甲基胆蒽誘发皮肤癌过程中,观察到:(1)組織提取液的蛋白貭含量有所增高;(2)GDH、GOT、谷氨酰胺酶的活性显著降低;(3)LDH的活性显著增高;(4)組織蛋白酶与二肽酶活性在增生期有所增高;在乳头瘤及皮肤癌則略有降低;(5)ATP酶活性无显著变化;(6)在增生期蛋白—SH基增多,非蛋白—SH基減少;乳头瘤与皮肤癌的蛋白—SH基接近正常,非蛋白—SH基增多。(三)在皮肤引癌早期,如滴甲基胆蒽一次后2斗小时,GDH活性即显著下降,而LDH活性仍接近正常。(四)滴非致癌物,蒽对表皮GDH及LDH活性无显著影响。(五)結合形态学的观察,对上述酶活性及—SH基变化在皮肤癌变中的可能意义,作了簡短討論。

(1) A comparative study has been made on the induction of tryptophan pyrrolase by substrate and corticoids in liver tumor and the precancerous liver induced by 3'-MeDAB.(2) The liver tumor, contrary to normal liver, was inactive in response to both tryptophan and hydrocortisone for the induction of tryptophan pyrrolase, while the tissue adjacent to the tumor was active with respect to both substrate and hormonal induction.(3) A decrease in both substrate and hormonal induction was observed in the precancerous...

(1) A comparative study has been made on the induction of tryptophan pyrrolase by substrate and corticoids in liver tumor and the precancerous liver induced by 3'-MeDAB.(2) The liver tumor, contrary to normal liver, was inactive in response to both tryptophan and hydrocortisone for the induction of tryptophan pyrrolase, while the tissue adjacent to the tumor was active with respect to both substrate and hormonal induction.(3) A decrease in both substrate and hormonal induction was observed in the precancerous liver developed by feeding 3'-MeDAB for different time intervals. In experiments by injecting intraperitoneally the carcinogen into animals,for 25 hours, similar results were obtained as in the feeding experiments.(4) 2-MeDAB, a non-carcinogenic substance, caused the same effect on the induction of tryptophan pyrrolase in every case as did 3'-MeDAB. It thus appears that the effect of 3'-MeDAB on the enzyme induction may not be specific.(5) No inhibitors of tryptophan pyrrolase or activators of kynureninase were found in the cell sap of liver tumor and the liver of rats fed 3'-MeDAB or 2-MeDAB in the course of induction.(6) The cell sap from liver tumor (non-induced) contained only a small amount of enzyme protein, as shown by the fact that the enzyme activity being only slightly increased by the addition of either normal microsome or hematin, of which the level has not elevated by the administration of tryptophan or hydrocortisone.(7) Similar experiments have shown that the cell sap from the substrate and hormonal induced liver in the precancerous stage contained a decreased amount of enzyme protein as compared to that of the control. The same was true of the rats fed 2-MeDAB.(8) Microsomes from liver tumor have lost almost completely the ability of activating tryptophan pyrrolase in the cell sap. The ability of activation due to microsomes from the precancerous liver was remarkably reduced, though not yet completely lost, while the microsomes from the liver of rats fed 2-MeDAB were normal. It was in this respect that the effect of non-carcinogen (2-MeDAB) was found to be different from that of the carcinogen (3'-MeDAB).(9) From the results presented, it was concluded that the default of tryptophan pyrrolase induction observed in the liver tumor and the precancerous liver was mainly due to an inadequate amount of apoenzyme, rather than a deficiency of co-factor (hematin) or an increment of protein other than the enzyme. The possible cause of these effects was briefly discussed.

本文对大鼠肝癌及癌前期肝内TP的底物诱导和激素诱导作了比较研究。在3′-MeDAB诱发的肝癌中,TP活性很低,且不因注射色氨酸或氢可地松而升高,而癌周组织则仍保留对底物和激素诱导的能力。喂3′-MeDAB 13天、28天、90天大鼠肝内TP的底物诱导效应都较对照组为低。急性注射3′-MeDAB25小时,以100毫克/100克体重的L-色氨酸进行诱导,TP的诱导效应亦较对照组为低。氢可地松诱导的结果与底物诱导的相似,无论在喂或急性注射3′-MeDAB的情况下,TP的诱导效应都受到抑制。但在相同条件下,非致癌物,2-MeDAB,对TP的底物诱导和激素诱导(慢性的或急性的实验)也有相似的作用。诱导后肝癌组织或喂偶氮染料的肝组织中都未发现有TP的抑制物或狗尿酸酶的激活物。微粒体及正铁血红素与上清液的加合实验表明:(1)肝癌微粒体几乎完全不具有激活TP的活力;癌前期(3′-MeDAB组)肝微粒体已部分失去此种生化功能,但2-MeDAB组微粒体则否。3′-MeDAB对肝微粒体中辅助因子(正铁血红素)的结构并无破坏,而可能使辅助因子的含量减少。(2)微粒体对激活上清液TP的效果较自由的正铁血红素差,即使加入过量微粒体亦不能...

本文对大鼠肝癌及癌前期肝内TP的底物诱导和激素诱导作了比较研究。在3′-MeDAB诱发的肝癌中,TP活性很低,且不因注射色氨酸或氢可地松而升高,而癌周组织则仍保留对底物和激素诱导的能力。喂3′-MeDAB 13天、28天、90天大鼠肝内TP的底物诱导效应都较对照组为低。急性注射3′-MeDAB25小时,以100毫克/100克体重的L-色氨酸进行诱导,TP的诱导效应亦较对照组为低。氢可地松诱导的结果与底物诱导的相似,无论在喂或急性注射3′-MeDAB的情况下,TP的诱导效应都受到抑制。但在相同条件下,非致癌物,2-MeDAB,对TP的底物诱导和激素诱导(慢性的或急性的实验)也有相似的作用。诱导后肝癌组织或喂偶氮染料的肝组织中都未发现有TP的抑制物或狗尿酸酶的激活物。微粒体及正铁血红素与上清液的加合实验表明:(1)肝癌微粒体几乎完全不具有激活TP的活力;癌前期(3′-MeDAB组)肝微粒体已部分失去此种生化功能,但2-MeDAB组微粒体则否。3′-MeDAB对肝微粒体中辅助因子(正铁血红素)的结构并无破坏,而可能使辅助因子的含量减少。(2)微粒体对激活上清液TP的效果较自由的正铁血红素差,即使加入过量微粒体亦不能使TP活性增高到加入正铁血红素的水平;微粒体对3′-MeDAB组上清液的激活不如对2-MeDAB组及对照组上清液(底物或激素诱导)的激活显著,而正铁血红素对三组上清液都有显著激活。(3)肝癌细胞上清液只合有极少量的TP蛋白,且不因注射色氨酸或氢可地松而增加;癌前期肝细胞上清液的TP蛋白因底物或激素诱导而增加的量都较对照粗低。2-MeDAB组也有相似现象。以上结果表明,肝癌及癌前期肝内TP诱导的受损,主要是由于诱导后TP蛋白的缺少,而不是由于辅助因子(如正铁血红素)的不足,或非酶蛋白的增多。

The changes of tyrosine transaminase activity (TAT) and nucleotide 5'-phosphodiesterase activity (5'-NPDase) during foetal development and carcinogenesis in rats and in human beings were observed. Results so far obtained indicate that (1) a higher positive rate of the fastest moving isoenzyme band for 5'-NPDase has been noted in AFP (-) patients with liver cancer, and (2) TAT, 5'-NPDase and AFP may be taken together as good markers for the study of gene expression during liver caroinogenesis and foetal development....

The changes of tyrosine transaminase activity (TAT) and nucleotide 5'-phosphodiesterase activity (5'-NPDase) during foetal development and carcinogenesis in rats and in human beings were observed. Results so far obtained indicate that (1) a higher positive rate of the fastest moving isoenzyme band for 5'-NPDase has been noted in AFP (-) patients with liver cancer, and (2) TAT, 5'-NPDase and AFP may be taken together as good markers for the study of gene expression during liver caroinogenesis and foetal development.

本文测定了大鼠及人体胚胎发育和癌变过程中TAT和5′-NPDase活力变化,所得结果表明: (一)5′-NPDase快速同工酶区带在甲胎蛋白(AFP)阴性肝癌患者血清中阳性率较高。(二)TAT,5′-NPDase和AFP也许可作为研究癌、胚以及肝癌癌变过程中基因表达的三个互补生化指标。

 
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