Research on trans fat is a vague topic- would help to clarify in detail.

a.) How trans fat is different from poly- mono or satuarated fats?

b.) What are the sources of trans fat? How body process the trans fat?

c.) What are you looking at? As a risk factor of general health? Cardiovascular health?  

It would be easier to comment on which part you want to explore; bio-chemical, epidemiological or something different?

Good luck!

Dharan