1)  Rb-Sr dating
Rb-Sr测年
2)  Rb-Sr dating of deformed minerals
变形矿物Rb-Sr测年
3)  RB
RB
1.
The NMR Spectra and the Nuclear Magnetic Shielding of ~(171)Yb~2+ in YbCl_2 and AYbI_3(A = Cs, Rb, K) in Solid State;
固体化合物YbCl_2和AYbI_3(A=Cs,Rb,K)中~(171)Yb NMR谱及核磁屏蔽性质
2.
The Expression of MDM-2 and Rb in Pancreatic Carcinoma and Its Clinical Significance;
MDM-2、Rb在胰腺癌中的表达及其临床意义
3.
Expression of Cyclin D1,p16 and Rb in Retinoblastoma and Their Relationship;
Cyclin D1、p16及Rb在视网膜母细胞瘤中的表达及其相关性
4)  Rb +
Rb~+
5)  Retinoblastoma
Rb
1.
Effect of Melatonin on Oncogenesis of Retinoblastoma HXO-RB_(44) Cells;
褪黑素对视网膜母细胞瘤HXO-RB_(44)细胞成瘤性的影响
2.
Objective:To investigate the expression of Retinoblastoma(Rb)and p16 in non-small-cell lung cancer(NSCLC)and their relationship to clinicopathological factors.
目的:探讨Rb和p16基因在非小细胞肺癌(NSCLC)中的表达及其与临床病理因素的关系。
3.
MethodsThe tumor cells proliferation was detected by using 〔3H〕-TdR incorporation method, and the effects of Age on cell cycle of tumor cells, retinoblastoma (Rb) protein and cyclin-dependent kinases (Cdk) were analyzed by flow cytometry and Western blotting assay, respectively.
方法采用〔3H〕TdR掺入法测定肿瘤细胞增殖反应;用流式细胞技术分析Age对肿瘤细胞周期的影响;用蛋白印迹技术检测Age对肿瘤细胞Rb(retinoblastoma)、Cdk(cyclindependentkinases)等酶类的影响。
6)  Rb+
Rb+
1.
Transmembrane behavior of valinomycin carrying Rb++ across an erythrocyte membrane was studied through the measurements of Rb++ content in cell by graphite furnace atomic absorption spectrome-try.
通过石墨炉原子吸收法破膜检测胞内Rb+的含量,考察大环配体缬氨霉素运载Rb+跨膜的行为。
参考词条
补充资料:ginsenoside Rb2
分子式:
CAS号:

性质:四环二萜类衍生物。白色粉末(甲醇-正丁醇)。熔点200~203℃,198~201℃(分解)。旋光度+3.05 (c=0.98,甲醇)。o-甲基化人参皂苷Rb2,白色粉末(含水甲醇)熔点88~90℃,旋光度+1.03 (c=0.97,氯仿)。其乙酰化物,晶粉,熔点127℃。存在于五加科植物人参(Panax ginseng C.A.Mey er)的根、茎、叶,西洋参(P.quinquefolium L.)的根。对大鼠骨髓细胞DNA的合成以及对蛋白质或脂质的生物合成的作用与人参皂苷Rg1相似。体外与人参皂苷Rb1,Rc的混合物亦能明显促进大鼠骨髓DNA的生物合成。能减少乙酰胆碱引起的豚鼠离体子宫的收缩,但高浓度反而引起子宫收缩。对大鼠有减慢心率和双相性血压作用(先降后升)。还有舒张大血管、抗疲劳及溶血等作用。

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