Table 1.

TBT-induced increases in phosphorylation of MAPKs, p44/42 and p38.^a

	Length of exposure to TBT
	5 min	10 min	30 min	60 min
Fold increase in Phospho-p44/42 (500 nM TBT)	2.6	2.5	2.7	2.7
Fold increase in Phospho-p38 (500 nM TBT)	NSb	NS	NS	NS
Fold increase in Phospho-p44/42 (300 nM TBT)	2.8	3.5	4.1	5.0
Fold increase in Phospho-p38 (300 nM TBT)	2.1	2.2	2.3	2.0

^afrom Aluoch and Whalen, 2005

^bNS=not significant