英语语法分析

After birth, desmin expression was mainly concentrated in the Z lines of I bands and intercalated disks.

出生后，结蛋白表达主要集中于明带Z线和闰盘。

Scar tissue was seen in the control group, and desmin was negative and Troponin I was positive in cardiomyocytes.

对照组心脏标本中可见瘢痕组织；心肌细胞结蛋白染色阴性，肌钙蛋白i染色阳性。

METHODS: The expression of connexin 43 and desmin in cardiac muscle cells of mice with experimental viral myocarditis was determined by immunohistochemistry.

方法：连接蛋白43和在实验小鼠病毒性心肌炎心肌细胞结蛋白表达免疫测定。