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Joint International Conference on Long-term Experiments ...

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Exposure<br />

time<br />

weeks<br />

1<br />

2<br />

3<br />

Table 2. Effects of 50 ppm NDMA in the drinking water: water c<strong>on</strong>sumpti<strong>on</strong>, body weights,<br />

NDMA demethylase, and pathological change<br />

Treat-<br />

ment<br />

N<strong>on</strong>e<br />

10% EtOH<br />

50ppmNDMA<br />

NDMA+EtOH<br />

N<strong>on</strong>e<br />

10% EtOH<br />

50ppmNDMA<br />

NDMA+EtOH<br />

N<strong>on</strong>e<br />

10% EtOH<br />

50ppmNDMA<br />

NDMA+EtOH<br />

Average<br />

Water<br />

C<strong>on</strong>sumpti<strong>on</strong><br />

(ml)<br />

3.6+0.6 (4) a<br />

4.5+0.4 (4)<br />

2.4+0.1 (4)<br />

2.6+0.3 (4)<br />

4.0+0.3 (4)<br />

4.0+0.8 (4)<br />

2.3+0.6 (4)<br />

1.9+0.4 (4)<br />

4.9+1.7 (4)<br />

2.9+0.3 (4)<br />

2.5+0.6 (4)<br />

1.8+0.3 (4)<br />

Average Body<br />

Weight<br />

(g)<br />

26.2+1.7 (10) a<br />

26.8+1.9 (10)<br />

23.4+1.9 (20)<br />

22.4+2.4 (20)<br />

26.8+1.5 (10)<br />

25.9+1.9 (10)<br />

24.6+2.3 (20) d<br />

20.1+2.3 (20) d<br />

27.9+1.7 (10)<br />

28.6+1.7 (10)<br />

24.6+2.3 (10) d<br />

22.4+2.0 (10) d<br />

NDMA<br />

Demethylase<br />

(Nmol<br />

CH2O/mg<br />

Pathological Change<br />

protein/20 min)<br />

Gross Histological<br />

ND b<br />

ND<br />

1.0+0.7 (6) c<br />

2.0+1.0 (6)<br />

ND<br />

ND<br />

1.8+0.7 (6)<br />

1.6+0.8 (6)<br />

ND<br />

ND<br />

0.9+0.6 (6) c<br />

0.5+0.4 (6) c<br />

a<br />

All values are + standard deviati<strong>on</strong>. Numbers of parantheses are numbers of de<strong>term</strong>inati<strong>on</strong>s<br />

b<br />

ND, not d<strong>on</strong>e<br />

c<br />

significantly different from value in untreated mice, 2.4+1.0 (N=7), p

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