Mutations in TTR are more common in African Americans.

TTR的突变在非裔美国人中更为常见。

TTR's a protein that usually circulates in the blood and helps transport thryoxine and retinol.

TTR是一种通常在血液中循环的蛋白质，帮助转运甲状腺素和视黄醛。

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。

Similarly, senile cardiac amyloidosis is where, over time, wild-type, or normal TTR deposits in the heart, and this is typically seen in the elderly.

与此疾病相似的是老年性心脏淀粉样变，即正常的TTR蛋白随着时间推移沉积在心脏中，该疾病通常见于老年人。