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. 2025 Aug 6;12:1539145. doi: 10.3389/fnut.2025.1539145

Table 5.

Correlations between changes in seizure frequency and changes in TRYCATs levels in patients with epilepsy.

Changes in TRYCATs levels Delta frequency
r p
Delta TRP −0.274 0.013*
Serotonin pathway
Delta serotonin −0.229 0.040*
Delta 5-HTP −0.143 0.201
Delta serotonin/TRP −0.223 0.046*
Delta 5-HTP/TRP 0.179 0.068
Delta Serotonin/5-HTP −0.252 0.023*
Indole pathway
Delta IAA 0.112 0.320
Delta IPA 0.242 0.033*
Delta IAA/TRP 0.218 0.048*
Delta IPA/TRP 0.307 0.005*
Kynurenine pathway
Delta KYN −0.280 0.011*
Delta KYNA −0.124 0.271
Delta KYN/TRP −0.177 0.112
Delta KYNA/KYN 0.294 0.008*

TRYCATs, tryptophan catabolites; TRP, tryptophan; 5-HTP, 5-hydroxytryptophan; IAA, 3-indole acetic acid; IPA, 3-indolepropionic acid; KYN, kynurenine; KYNA, kynurenic acid. *p < 0.05.