Figure 2
From: Pyrazine derivatives in cigarette smoke inhibit hamster oviductal functioning
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1477-7827-2-23/MediaObjects/12958_2004_Article_148_Fig2_HTML.jpg)
2-Methylpyrazine inhibited oviductal functioning in picomolar doses. Percent inhibition was derived by comparing each dose (n ≥ 2 infundibula) to an untreated control incubated in the vehicle alone (EBSS-H with 0.1% BSA). Each LOAEL (n = 4 infundibula) was compared to the untreated control (n = 4) using the Student's t-Test where *p < 0.5; **p < 0.01; ***p < 0.001.