. Author manuscript; available in PMC: 2009 Sep 26.

Published in final edited form as: Toxicol Lett. 2008 Jul 23;181(2):118–125. doi: 10.1016/j.toxlet.2008.07.009

Table 3.

Comparisons of brain metabolite contents by MRS between Pb-exposed and control workers

Group	n	NAA/Cr (95% CI)	Cho/Cr (95% CI)	mI/Cr (95% CI)	Lip/Cr (95% CI)	Glx/Cr (95% CI)
Control	19	1.314±0.131 (1.252~1.377)	0.949±0.106 (0.898~1.000)	0.615±0.094 (0.570~0.662)	0.264±0.094 (0.218~0.308)	0.442±0.103 (0.392~0.491)
Pb-E	15	1.222±0.082 (1.177~1.267) ^*	0.892±0.107 (0.832~0.950)	0.547±0.113 (0.484~0.610)	0.369±0.101 (0.315~0.425) ^**	0.483±0.157 (0.396~0.570)

Data represent mean +/− SD.

p<0.05

^**

p<0.01 compared with the control group.

NAA: N-acetyl-aspartate, Cr: creatine, Cho: choline, mI: inosine, Lip: lipids, Glx: glutamate/glutamine