甾基 的英文怎麼說

中文拼音 [zāijī]
甾基 英文
steryl
  • 甾 : 名詞[化學] （有機化合物的一類） steroid
  1. In steroid acetates the influence of the co grouping upon the symmetrical mode is small.

    在甾醇乙酸酯中，CO基團對對稱形式的影響較小。
  2. Glyceryl stearate se, dimethicone, stearic acid, batyl alcohol, carbomer, acrylates / c10 - 30 alkyl acrylate crosspolymer, xanthan gum, potassium hydroxide, camellia japonica seed oil, behenyl alcohol, hydrogenated palm oil, morigna pterygosperma seed oil, disodium edta, trifolium pratense ( clover ) flower extract, propylene glycol, phenoxyethanol, theanine, bis - behenyl / isostearyl / phytosteryl / dimer dilinoleyl dimer dilinolate, thermus thermophillus ferment, glycerin, sodium dehydroacetate, potassium sorbate

    水溶液、丁二醇、鯨蠟辛酸、甘油、硬脂酸酸甘油酯、矽靈、硬脂酸、膠狀基質、丙烯酸脂、黃原膠、氫氧化鉀、山茶種子油、脂肪酸醇類、氫化棕櫚油、辣木種子萃取物植物添加物、離子鉗合劑、紅三葉草萃取物、丙二醇、苯氧基乙醇、單寧、植物甾醇、脫氫醋酸鈉、山梨酸鉀。
  3. Abstract : methanesulfonic acid method was used to prepare five acylated chitins. except heptanoyl chitin, four of them, i. e. acetyl chitin, propionyl chitin, butyryl chitin and hexanoyl chitin, had high degree of substitution ( from 1. 5 to 2. 0 ) and exhibited lyotropic liquid crystalline behavior and cholesteric phase. as the length of the side chain increased the critical concentration ( w / w ) somewhat increased from 0. 21 to 0. 26 because the chain rigidity dropped. the critical concentration values of all the four derivatives were much higher than that of chitin ( 0. 12 ) due to the decrease of intramolecular hydrogen bonds. the four acylated chitin can form typical banded texture after being sheared. there minimum concentrations to form banded texture of them were evidently different, varied from 0. 25 ( for acetyl chitin ) to 0. 37 ( for hexanoyl chitin ). these results further indicated that liquid crystallinity decreased while the length of flexible side substituents increased

    文摘:四種羧酰化甲殼素即乙酰化、丙酰化、丁酰化和己酰化甲殼素在二氯乙酸溶液中均呈現膽甾型溶致液晶相.臨界濃度隨側基長度增加而略有增加，衍生物的臨界濃度明顯都比原甲殼素高許多，這些規律都可以用鏈剛性的變化來解釋.四種羧酰化甲殼素在剪切時均能形成條帶織構，而且能形成條帶織構的最低濃度有明顯差別，隨側基長度增加而提高，進一步表明側基較長，液晶性減少
  4. Udp - glucuronosyltransferases ( ugts ) are glycoproteins localized in the endoplasmic reticulum that catalyze the conjugation of a broad variety of endogenous and exogenous lipophilic aglycon substrates ( such as bilirubin, steroid hormone and drugs, insecticide, etc ) with glucuronic acid using udp - glucuronic acid ( udpga ) as the sugar donor. ugts are a gene superfamily of phase ii drug - metabolizing enzymes, they are responsible for the glucuronidation of a significant number of different functional groups ( e. g

    Ugts能催化各種各樣外源和內源的親脂性糖苷配基底物與葡醛酸的結合，該反應是機體清除外源性（如藥物和殺蟲劑）和內源性（如膽紅素和甾體激素）親脂性化合物的一個主要方式，也是藥物相代謝的重要方式。
  5. Since 1980s he has been studying the mechanism of normalization of abnormal blood pressure and the resetting of baroreceptor reflex by acupuncture and somatic nerve stimulation, effects of brain osmoreceptor stimulation on sympathetic nerve discharge and renal activity, the role of vasopressin in body fluid and salt homeostasis, difference in gene expression between hypertensive and normotensive rats, hypertension and cardiac ischemia - induced myocardial remodeling, effect of steroids on the nervous system, etc. with his research achievements, dr. yao was awarded science and technology progress prize sponsored by the state education commission grade a award in 1986, grade b award in 1995 and by the ministry of health grade b award in 1989 and 1993, grade a award of guang - hua science and technology prize 1995, and chinese universities science and technology prize grade b award in 2000

    近二十年來，他主要從事針刺和刺激軀體神經對心血管和腎臟活動的調整作用刺激腦內滲透壓感受器引起的交感神經放電和腎臟活動的改變血管升壓素在心血管活動調節和水鹽平衡中的作用原發性高血壓的相關基因高血壓和心肌梗死引起的心肌重構甾體激素對神經系統的影響等。他的科研成果曾獲得國家教委科技進步獎一等獎一項1986年二等獎一項1995年衛生部醫藥衛生科技進步獎二等獎二項1989 1993年光華科技基金獎一等獎一項1995年中國高校科學技術獎二等獎一項2000年。
  6. A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage

    本文合成了高效酰化催化劑4 -二甲基氨基吡啶（ 4 - dimethylaminopyridine ， dmap ） ，採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物，並進行了化學結構和液晶性能的表徵。
  7. Results showed that persimmon leaves contained alkaloids, saponins, amino acids, polypeptides, organic acids, phenolic compounds and tannins, saccharides, steroids, flavones, cardiac glycosides, anthraquinones, naphtha, etc

    通過系統預試，初步確定柿葉中含有生物堿、皂苷、氨基酸、多肽、有機酸、酚類和鞣質、糖類、甾體、總黃酮、強心苷、蒽醌、揮發油等物質。
  8. Synthesis and mesomorphism of disubstituted pyridazines containing cholesteryl

    含膽甾基的雙取代噠嗪的合成和介晶性
  9. The research team identified a second polymorphism, in a gene encoding an enzyme, 3 - beta - hydroxysteroid dehydrogenase, which also is associated with an increase in hot flashes

    研究小組還鑒定了第二種多態現象， 3 -羥甾類脫氫酶的基因編碼，同樣和熱潮的增加關聯。
  10. The polarographic catalytic waves of organic compounds, such as protein, flavone, steroide, quinine, - unsaturated carbonyl compound, nitrogen - containing substances and charged surfactants, and their application are briefly introduced

    簡要介紹蛋白質、黃酮類化合物、甾族類化合物、醌類化合物、 ，不飽和羰基化合物、含氮化合物和荷電表面活性劑等不同種類有機化合物的極譜催化波及其應用。
  11. The data of gc / ms of the whole oils show that there are three oil groups in the basin : group a with abundant 4 - melhylsterancs. group b with relative low 4 - methylstcrane contents, and group c with relative lowest maturity

    全油定量gc ms分析結果顯示，珠江口盆地存在三類原油： a類原油以豐富的4 -甲基甾烷為特徵； b類原油以低4 -甲基甾烷含量為特徵； c類原油以相對低成熟度為特徵。
  12. Some thousnads pharmacologists in beijing and from many colleges and institutions of other cities will be the enthusiatic audience of the meeting. in addition, a large number of graduate and postgraduate students will be not only be in the audience but also be the volunteers serving the foreign freedns attending the congress. we would like to share with all of you the new progress and achievement of modern pharmacology and traditional medicine

    韓國國立漢城大學的金炳玉教授在自己工作的基礎上，綜述報告了靈芝三萜類化合物的藥效和生物活性，他指出在過去的30年中，從藥用真菌特別是在靈芝中獲得的三萜類化合物已超過200種，他將羊毛甾烯型三萜酸分為10類，並對其構效關系作了介紹。
  13. At present, the planar structure of clc can be acquired by two methods. one is treating the panel of lc cell by orienting and rubbing, the other is by forming polymer net in the lc. the both method can be used at the same time

    目前，膽甾相液晶平面排態的獲得主要有兩種方法:一是通過對液晶盒的兩個基板表面進行取向摩擦;二是通過在膽甾相液晶中形成聚合物網路;當然也有二者兼用的。
  14. Here we show that 27 - hydroxycholesterol ( 27hc ), an abundant cholesterol metabolite that is elevated with hypercholesterolemia and found in atherosclerotic lesions, is a competitive antagonist of estrogen receptor action in the vasculature

    在此我們發現27 -羥基膽甾醇（ 27hc ）是一種含量豐富的膽固醇代謝產物，它的過量引起高膽固醇血癥並存於粥樣硬化病變中，在血管中是雌激素受體競爭性拮抗劑。
  15. Since the 60s of last century people first observed that steroids had rapid effects on neurons. scientists from all work of lines have more and more evidence about steroids that could n ' t be explounded by the traditional, genomic mechanisms. therefore, the rapid, nongenondc mechbosm was put forward to explain rapid actions of steroids

    自上世紀七十年代人們首先觀察到甾體激素對神經細胞存在快速作用后，科學工作者又在其他領域收集到許多用傳統的基因組機制無法解釋的證據，於是有人提出將甾體激素的這種快速作用稱為非基因組機制。
  16. The results show the relative reactivities of three second hydroxyl groups on steroids skeleton of methyl cholicate are different to the three kinds of acylating agents

    結果顯示，與三種活性不同的酰化試劑作用時，膽酸甲酯分子甾體骨架上三個仲羥基的相對反應活性不同。
  17. But there ' s another compound in the blood ? 27 - hydroxycholesterol, or 27hc ? that can also attach to the same receptors but doesn ' t trigger the protective benefits for the heart, according to a study of mice published yesterday in nature medicine

    昨天在自然醫學雜志上發表的對鼠的一項研究表明血液中存在另一種化合物- 27 -羥基膽甾醇，或27hc -它同樣能夠和相同的受體結合而不觸發對心臟的保護作用。
  18. On the basis of anal zing structure - activity relationship, the key points and solving methods of synthesizing brassinosteroids are introduced from the synthesis of matrix - cycle and introducing side chain

    在分析油菜甾醇內酯類植物生長調節劑結構與活性關系的基礎上，從母環的合成和側鏈的引入兩個方面詳細介紹了該類化合物的合成關鍵及解決方法。
  19. Results there are no carbohydrate, steroids and terpines in the anticoagulating activity of scorpion, but in the qualitative determination test of amino acid, six spots were developed and there existed the same bands with similar colour comparing with 14 standard amino acid

    結果全蝎抗凝活性成分中不含生物堿、糖類、甾體和萜類，含蛋白質和多肽，但在氨基酸的定性檢測中，分離得到6個成分的斑點，與14種氨基酸對照品在相同位置上有相同顏色的斑點。
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