1H-magnetic resonance spectroscopy for quantifying myocardial lipid content in humans with the cardiometabolic syndrome.

1H-magnetic resonance spectroscopy for quantifying myocardial lipid content in humans with the cardiometabolic syndrome.
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DOI:
10.1111/j.1559-4572.2009.00061.x
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发表时间:
2009-09
期刊:
Journal of clinical hypertension (Greenwich, Conn.)
影响因子:
--
通讯作者:
Gropler RJ
Gropler RJ
中科院分区:
其他
文献类型:
--
作者:
O'Connor RD;Bashir A;Cade WT;Yarasheski KE;Gropler RJ

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血清游离脂肪酸(FFA)水平升高在心脏代谢综合征风险人群中很常见。这些游离脂肪酸在非脂肪组织(包括肝脏、骨骼肌和心脏)中以甘油单酯、甘油二酯和甘油三酯的形式转运、转化和储存。对于心脏,这种脂质积累与胰岛素抵抗、糖尿病、收缩功能障碍有关,在动物模型中与细胞凋亡有关。1-7然而,FFA、心血管代谢综合征和心血管疾病之间的关系尚不清楚,相关性也不完善。与FFA水平相比,直接测量心肌细胞内脂质(IMCL)含量可提供异位脂质蓄积的明确指标,并可提供更好的疾病风险预测指标。在这里,我们描述并证明了1H磁共振波谱(MRS)技术定量人体心肌脂质含量。
Elevated serum free fatty acid (FFA) levels are common in people at risk for cardiometabolic syndrome. These FFA are transported, converted, and stored as monoglycerides, diglycerides, and triglycerides in nonadipose tissues including liver, skeletal muscle, and heart. For the heart, this lipid accumulation has been associated with insulin resistance, diabetes, systolic dysfunction, and in animal models, apoptosis. 1–7 However, the relationship between FFA, cardiometabolic syndrome, and cardiovascular disease is unclear and the correlations imperfect. In contrast to FFA levels, a direct measure of cardiac intramyocellular lipid (IMCL) content provides a clear indicator of ectopic lipid accumulation and may provide a better risk predictor for disease. Here we describe and demonstrate a 1H magnetic resonance spectroscopy (MRS) technique for quantifying human myocardial lipid content.
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