. Author manuscript; available in PMC: 2010 Oct 15.

Published in final edited form as: Toxicol Appl Pharmacol. 2009 Jul 22;240(2):143–148. doi: 10.1016/j.taap.2009.07.015

Table 1.

Microtubule length, density, and width as a function of chlorpyrifos oxon (CPO) concentration during polymerization of 0.1 mM bovine tubulin

[CPO], mM	length, μm	number of tubules in 20 × 20 μm area	width, nm
0 (control)	10.4±1	60.7±6	84.2±20
0.005	4.3±0.4	8.3±0.8	75.2±7
0.010	6±0.6	49.6±5	72.1±8
0.025	>20	135	65.1±4.9
0.050	clumps	clumps	clumps
0.100	clumps	clumps	clumps

A one-way ANOVA on the width of fibrils at each concentration of chlorpyrifos oxon demonstrated statistically significant differences p - 0.04 for the 0.01 mM treated group and p = 0.002 for the 0.025 mM group compared to control.