However, MyoD 1, myosin , myoglobin, S 100, desmin , CK, EMA, CD 68 and CD 117 were negative.是什么意思？

However, MyoD 1, myosin , myoglobin, S 100, desmin , CK, EMA, CD 68 and CD 117 were negative.

而MyoD1 、 myosin 、 myoglobin 、 S-100 、 Des 、 CK 、 EMA 、 CD68以及CD117均(-).

however

adv. 不管到什么程度，无论如何，然而，可是；conj. 不管怎样；

例句
The fact remains that inflation, however you measure it, is unacceptably high...
必须承认，无论怎么衡量，通货膨胀率都高得难以接受。

desmin

n. 肌间线蛋白；

例句
No SCLC was found to express Desmin and GFAP.
Desmin、GFAP未 见表达.

cd

centre door 中门；

例句
The Beatles' Red and Blue compilations are issued on CD for the first time next month.
下个月，披头士乐队的专辑《红与蓝》将首次发行CD。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

negative

adj. 消极的，否认的，[数]负的，[心]反抗性的，无预期结果的；n. 否定词语，否定的观点，消极性，[摄]底片；vt. 否定，拒绝；

例句
Being unemployed produces negative attitudes to work...
失业会产生对工作的消极态度。