The concentration dependent effects of trtramethylpyrazine (TMP) on the L type calcium channel(L I Ca ) of ventricular myocardium were studied with the whole cell patch clamp technique.

• 采用全细胞膜片钳（Wholecellpatch clamp） 技术研究川芎嗪（ 四甲基吡嗪，trtramethylpyrazine，TMP） 对豚鼠心室肌细胞L型钙通道电流（L?ICa）的浓度依赖性影响。