Myostatin is elevated in congenital heart disease and after mechanical unloading.

Myostatin is elevated in congenital heart disease and after mechanical unloading.
复制标题

DOI:
10.1371/journal.pone.0023818
复制
发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Sweeney HL
Sweeney HL
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Bish LT;George I;Maybaum S;Yang J;Chen JM;Sweeney HL

文献摘要

参考文献

被引文献

相似文献

肌肉生长抑制素是骨骼肌质量的负调节因子,其活性在成人心力衰竭 (HF) 中上调;然而,它在先天性心脏病(CHD)中的作用尚不清楚。我们通过蛋白质印迹研究了不同程度的心肌功能障碍和冠心病双心室支持后心脏组织中肌生长抑制素和 IGF-1 的表达,收集了四个患者队列的心肌活检:A) 无已知心肺疾病的成年受试者(左心室,LV),(成人正常),(n = 5); B) 接受先天性心脏手术且右心室大小和功能正常(右心室流出道,RVOT)的儿科受试者,(n = 3); C) 左室衰竭恶化但血流动力学稳定的儿科受试者 [LV 和右心室 (LV, RV,)],在原位心脏移植 (OHT) 时收集活检,(n = 7); D) 在 BiVAD 支持下患有失代偿性双心室衰竭的儿科受试者,并在 OHT 处采集活检(LV、RV、BiVAD),(n = 3)。与 BIVAD 相比,OHT 患者的心力衰竭持续时间最长。 BiVAD 支持的持续时间为 4.3±1.9 天。与 RV-OHT 和 RVOT 相比,LV-OHT 中肌生长抑制素的表达显着增加,与 OHT 和 RVOT 相比,失代偿性双心室心力衰竭 (BiVAD) 中肌生长抑制素表达增加了一倍多。肌生长抑制素/IGF-1 比率增加与心室功能障碍相关。 CHD 中肌生长抑制素表达增加,并且肌生长抑制素/IGF-1 比率随着心室功能恶化而增加。未来的研究有必要确定恢复生理性肌生长抑制素/IGF-1 比率是否具有治疗心力衰竭的潜力。
Myostatin is a negative regulator of skeletal muscle mass whose activity is upregulated in adult heart failure (HF); however, its role in congenital heart disease (CHD) is unknown. We studied myostatin and IGF-1 expression via Western blot in cardiac tissue at varying degrees of myocardial dysfunction and after biventricular support in CHD by collecting myocardial biopsies from four patient cohorts: A) adult subjects with no known cardiopulmonary disease (left ventricle, LV), (Adult Normal), (n = 5); B) pediatric subjects undergoing congenital cardiac surgery with normal RV size and function (right ventricular outflow tract, RVOT), (n = 3); C) pediatric subjects with worsening but hemodynamically stable LV failure [LV and right ventricle (LV, RV,)] with biopsy collected at the time of orthotopic heart transplant (OHT), (n = 7); and D) pediatric subjects with decompensated bi-ventricular failure on BiVAD support with biopsy collected at OHT (LV, RV, BiVAD), (n = 3). The duration of HF was longest in OHT patients compared to BIVAD. The duration of BiVAD support was 4.3±1.9 days. Myostatin expression was significantly increased in LV-OHT compared to RV-OHT and RVOT, and was increased more than double in decompensated biventricular HF (BiVAD) compared to both OHT and RVOT. An increased myostatin/IGF-1 ratio was associated with ventricular dysfunction. Myostatin expression in increased in CHD, and the myostatin/IGF-1 ratio increases as ventricular function deteriorates. Future investigation is necessary to determine if restoration of the physiologic myostatin/IGF-1 ratio has therapeutic potential in HF.
DOI: 10.1016/j.bbrc.2004.01.085
发表时间: 2004-03-12
影响因子: 3.1
作者:
Jiang, MS;Liang, LF;Stotish, R
通讯作者: Stotish, R
DOI: 10.1249/mss.0b013e3181e0b9a8
发表时间: 2010-11
影响因子: 4.1
作者:
Hittel DS;Axelson M;Sarna N;Shearer J;Huffman KM;Kraus WE
通讯作者: Kraus WE
DOI: 10.1093/eurjhf/hfp020
发表时间: 2009-04-01
影响因子: 18.2
作者:
Lenk, Karsten;Schur, Robert;Schuler, Gerhard
通讯作者: Schuler, Gerhard
DOI: 10.1161/01.res.0000231290.45676.d4
发表时间: 2006-07-07
影响因子: 20.1
作者:
Morissette, Michael R.;Cook, Stuart A.;Rosenzweig, Anthony
通讯作者: Rosenzweig, Anthony
DOI: 10.1371/journal.pone.0009176
发表时间: 2010-02-11
期刊: PLOS ONE
影响因子: 3.7
作者:
Morine, Kevin J.;Bish, Lawrence T.;Sweeney, H. Lee
通讯作者: Sweeney, H. Lee