SARS-CoV-2, the ViRoS that causes COVID-19, does on occasion infect and damage heart tissue directly.

SARS-CoV-2是导致新冠的病毒，有时会直接感染和损害心脏组织。

This forms the bulk of the heart tissue, because those cardiac muscle cells contract and pump blood.

他们构成了大部分心脏组织，这是因为心肌细胞能收缩，从而实现泵血。

They also removed another gene in an effort to prevent too much growth of pig heart tissue.

他们还移除了另一个基因，以防止猪心脏组织过度生长。

Finally, radiation of the heart tissue can lead to restrictive cardiomyopathy.

最后，心脏组织的辐射可以导致限制型心肌病。

In this case, less blood and oxygen gets through the coronary artery to the heart tissue, which damages the myocardium.

在该情况下，冠状动脉没有给心脏供应足够的血液和氧气，进而导致心肌受损。

They also removed another gene from the animal in an effort to prevent too much growth of pig heart tissue.

他们还从猪身上移除了另一种基因，以防止猪心脏组织过度生长。

It’s no surprise that heart tissue and bone tissue have really different jobs.

心脏组织和骨骼组织的工作完全不同也就不足为奇了。

Also, with hemochromatosis, or iron overload, iron can deposit in the heart tissue, which contributes to restricted ventricular filling.

还有，在血色素沉积症，或者说铁超出负荷时，铁可以沉积在心脏组织中，导致限制型的心室充盈。

In fact, after a heart attack, some of your heart tissue could effectively turn into bone.

事实上，心脏病发作后，您的一些心脏组织可以有效地变成骨骼。

Sarcoidosis is another cause that involves the formation of granulomas in the heart tissue, which are these collections of immune cells.

结节病是另一病因，即心脏组织中肉芽肿形成导致限心病，这些肉芽肿是免疫细胞的聚集。

The coronary arteries start up in the epicardium, and then dive down and supply all the heart tissue.

冠状动脉在心外膜发出，然后深入供应所有心脏组织。

A reentrant loop basically starts sending out depolarization waves to the rest of the heart tissue each time the wave goes around.

每沿着折返环路环绕一圈，它就开始向其余心肌组织发放除极波。

A prolonged ischemia can lead to death of the heart tissue, known as heart attack or myocardial infarction.

血液供应减少称为缺血。长时间缺血可导致心脏组织死亡，即心脏病发作或心肌梗死。

Well, remember, necrosis just refers to death of something so in this case, death of the heart tissue.

请记住，坏死只是指某物的死亡，因此在这种情况下，就是心脏组织的死亡。

Loffler syndrome, where eosinophils accumulate in the lung tissue, can also affect the heart tissue, called Loeffler endocarditis or sometimes loeffler endomyocarditis.

Loffler综合征：嗜酸性粒细胞聚集在肺组织中，也可以累及心脏组织，这种情况叫做Loeffler心内膜炎，有时也叫Loeffler心内膜肌炎。

Familial amyloid cardiomyopathy is a genetic disorder where mutant transthyretin protein, or TTR, is misfolded and prone to depositing in the heart tissue.

家族性淀粉样心肌病是一种基因疾病：突变的转甲状腺素蛋白（TTR）折叠错误，并易于在心脏组织中沉积。

In another JAMA Cardiology study, researchers reported finding SARS-CoV-2 in the heart tissue of 61.5% of 39 patients who had died due to COVID-19.

在《美国医学会心脏病学杂志》的另一项研究中，研究人员报告称39名因新冠死亡的患者中有61.5%的心脏组织存在SARS-CoV-2。

In this case, eosinophils accumulate in the endocardial layer of the heart tissue, causing inflammation and endocardial fibrosis, making it stiffer and again less compliant.

在这类病例中，嗜酸性粒细胞聚集在心脏组织的心内膜层，导致炎症和心内膜纤维化，让其更加僵硬、顺应性更差。

In the heart, tissues may swell, the heart rhythm may alter, and the weakened muscle may fail to pump enough blood to the rest of the body.

在心脏中，组织可能会肿胀，心律可能会改变，并且虚弱的肌肉可能无法将足够的血液泵送到身体的其他部位。

Or it could be useful for engineering stem cells that can be implanted into a damaged heart and which need to sync up with the  rhythm of the patient's own heart tissues.

或者它对于工程干细胞可能有用，这些干细胞可以植入受损的心脏，并且需要与患者自身心脏组织的节律同步。