Table 1.

Summary of behavioral results

Behavioral Test	Comparisons
	IL-6 tg+/+ vs IL-6 tg −/−	IL-6 tg+/+ vs IL-6 tg +/−	IL-6 tg+/− vs IL-6 tg −/−
1. Light/Dark Transfer
- time spent in light chamber	ns	ns	ns
- # of transitions	↓	↓	ns
2. Open field test
- distance	↓	↓	ns
- velocity	↓	↓	ns
- center entries	↓	↓	ns
- center time	ns	ns	ns
3. Grooming, rearings	ns	ns	ns
4. Digging bouts	↓	↓	ns
5. Tail suspension test	ns	ns	ns
6. Forced swim test
Immobility	↑	↑	ns
7. HIC score	↑	↑	ns

↓= decrease, ↑= increase; ns = no significant difference