Cardiac beta myosin heavy chain diversity in normal and chronically hypertensive baboons.

Cardiac beta myosin heavy chain diversity in normal and chronically hypertensive baboons.
复制标题

正常和慢性高血压狒狒的心脏β肌球蛋白重链多样性。

DOI:
10.1172/jci114042
复制
发表时间:
1989
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
Walsh,RA
Walsh,RA
中科院分区:
--
文献类型:
--
作者:
Henkel,RD;VandeBerg,JL;Shade,RE;Leger,JJ;Walsh,RA

文献摘要

参考文献

被引文献

相似文献

我们已经确定了两个不同的β-肌球蛋白重链(MHC)存在于狒狒心肌梯度孔凝胶电泳和免疫印迹抗MHC单克隆抗体。这两种β-MHC的分子量为210和200 kD,并共享几个抗原决定簇,包括由β-MHC特异性MAb识别的表位。在患有慢性(5.3 +/- 0.7年)肾性高血压的狒狒肥大左心室中观察到200 kD β-MHC水平增加了5倍。与血压正常的动物相比,高血压狒狒的血压增加60%(P <0.01),左心室质量与体重比增加100%(P <0.001)。心肌肥厚组心肌肌球蛋白ATP酶活性较对照组降低35%(P <0.05)。正常水平的200-kD MHC检测到的右心室和心室间隔的高血压动物。这些数据表明,心脏的灵长类动物的MHC可能存在于替代分子形式,是不可区分的非变性凝胶电泳和第二个β-MHC的浓度增加与心室肥大(r = 0.55)。控制β-MHC亚种浓度的功能意义和机制仍有待确定。图片
We have identified two distinct beta-myosin heavy chains (MHCs) present in baboon myocardium by electrophoresis in gradient pore gels and by Western blots with anti-MHC MAb. The two beta-MHCs have molecular masses of 210 and 200 kD and share several antigenic determinants including an epitope recognized by a beta-MHC-specific MAb. A fivefold increase in the level of the 200-kD beta-MHC was observed in the hypertrophied left ventricles of baboons with chronic (5.3 +/- 0.7 yr) renal hypertension. A 60% increase (P less than 0.01) in BP and a 100% increase (P less than 0.001) in left ventricular mass to body weight ratio occurred in hypertensive baboons compared with normotensive animals. The Ca2+-activated myosin ATPase activity in hypertrophied left ventricles was decreased by 35% (P less than 0.05) compared with controls. Normal levels of the 200-kD MHC were detected in the right ventricles and intraventricular septa of the hypertensive animals. These data suggest that cardiac MHCs of primates may exist in alternative molecular forms that are indistinguishable by nondenaturing gel electrophoresis and that increased concentration of a second beta-MHC is associated with ventricular hypertrophy (r = 0.55). The functional significance and mechanisms that control the concentration of beta-MHC subspecies remain to be determined.Images
通过对来自胚胎鸡骨骼肌的多核糖体进行间接免疫沉淀,纯化快速和慢速肌球蛋白重链的信使核糖核酸。
DOI: 10.1021/bi00550a035
发表时间: 1980
期刊: Biochemistry
影响因子: 2.9
作者:
P. K. Umeda;R. Zak;M. Rabinowitz
通讯作者: M. Rabinowitz
DOI: 10.1161/01.res.49.4.1003
发表时间: 1981-01-01
影响因子: 20.1
作者:
GORZA, L;PAULETTO, P;SCHIAFFINO, S
通讯作者: SCHIAFFINO, S
来自牛心肌肌球蛋白亚片段 1 羧基末端的 20 千道尔顿重链肽的序列。
DOI: 10.1172/jci111462
发表时间: 1984
期刊: The Journal of clinical investigation
影响因子: --
作者:
Flink,IL;Morkin,E
通讯作者: Morkin,E
非人类灵长类动物的主动脉去神经支配。
DOI: 10.1152/ajpregu.1987.252.2.r294
发表时间: 1987
期刊: The American journal of physiology
影响因子: --
作者:
Bishop,VS;Shade,RE;Haywood,JR;Hamm,C
通讯作者: Hamm,C
压力超载和甲状腺毒性肥大兔心脏改变的肌球蛋白同工酶模式
DOI: --
发表时间: 1982
影响因子: 20.1
作者:
R. Litten;B. J. Martin;R. Low;N. Alpert
通讯作者: N. Alpert