Table 5.

Sixteen faecal metabolites with significant correlation in rats with induced depression (adjusted from Yu et al. [150]).

Faecal Metabolites	Trend in Depressed Rats
Nicotinic acid	↑
Hypoxanthine	↑
Dextrorphan O-glucuronide	↑
3-Methoxytryptophan	↑
5-Methoxytryptophan	↓
L-Urobilin	↑
MG(0:0/20:3(5Z,8Z,11Z)/0:0)	↓
PE(14:1(9Z)/14:1(9Z))	↑
PS(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z))	↑
Cholic acid	↑
MG(0:0/20:4(8Z,11Z,14Z,17Z)/0:0)	↓
Stearyl citrate	↓
Hyocholic acid	↑
L-Urobilinogen	↑
Deoxycholic acid	↑
Chenodeoxycholic acid	↑

Faecal levels in depressed rats compared to healthy control group: ↑ = upregulated; ↓ = downregulated. Rows marked in blue have a p-value of p < 0.01, whereas rows in white reached p < 0.05. MG = monoacylglyceride; PE = phosphatidylethanolamine; PS = phosphatidylserine