英语翻译Transfection efficiency was determined by immunocytochem

这翻译涉及两种可能.我认为应该先理解全文才容易翻译.mutant为pendrin的变体,而此变体仅对显示EYFP的细胞而言.抑或者其文是针对pendrin及其变体而言的.
in respect to [of]
关于,就...来说; 对...有影响的
（金山词霸）
with respect to - referring to; concerning:with respect to your latest request.(is the most common by far)
in respect of - in reference to; in regard to; concerning.
In respect to - in relation to; with regard to; as respects.
（from internet)