Related Experiment Video
Updated: Jul 26, 2025

Assessment of Intestinal Transcytosis of Neonatal Escherichia coli Bacteremia Isolates
Published on: February 17, 2023
Changes of intestinal flora in children with febrile seizure
Lin Yang1,2, Jianmei Tian2
1The Second Affiliated Hospital of Shandong First Medical University, Tai'an, China.
Insights
Febrile seizures in children are linked to differences in gut bacteria and metabolites. Restoring gut flora balance may help prevent and treat this neurological disorder.
Area of Science:
- Microbiology
- Metabolomics
- Pediatric Neurology
Background:
- Febrile seizure (FS) is a common childhood neurological disorder with unclear pathogenesis.
- FS recurrence impacts child development and quality of life.
Purpose of the Study:
- To investigate differences in intestinal flora and metabolomics between children with and without FS.
- To explore the relationship between gut microbiota and metabolites in FS pathogenesis.
Main Methods:
- 16S rDNA sequencing for gut microbiota analysis.
- Liquid chromatography-mass spectrometry for fecal metabolomics.
- Statistical analyses including LEfSe, OPLS-DA, and KEGG pathway analysis.
Main Results:
- Significant differences in intestinal microbiome composition at the phylum level between FS and healthy children.
- Identification of ten potential febrile seizure biomarkers, including xanthosine and taurine.
- Three key metabolic pathways (taurine metabolism, glycine/serine/threonine metabolism, arginine biosynthesis) implicated in FS.
- Correlation found between Bacteroides and specific differential metabolites.
Conclusions:
- Gut microbiome alterations are associated with febrile seizures in children.
- Specific metabolites and metabolic pathways may serve as FS markers.
- Modulating intestinal flora balance offers a potential therapeutic strategy for FS.
Abstract:
Febrile seizure (FS) is a highly recurrent neuro-system disorder in children that affects their nervous system development and quality of life. However, the pathogenesis of febrile seizures remains unclear. Our study aims to investigate the potential differences in the intestinal flora and metabolomics between healthy children and those with FS. By examining the relationship between specific flora and different metabolites, we hope to shed light on the pathogenesis of FS. Fecal specimens were collected from healthy children (n = 15) and children with febrile seizures (n = 15), and 16S rDNA sequencing was conducted to characterize intestinal flora. Subsequently, fecal samples from healthy (n = 6) and febrile seizure children (n = 6) were used to characterize metabolomics using linear discriminant analysis of effect size, orthogonal partial least squares discriminant analysis, Kyoto Encyclopedia of Genes and Genomes (pathway enrichment analysis), and Kyoto encyclopedia of genes and genomes topology analysis. Liquid chromatography-mass spectrometry was used to identify metabolites in the fecal samples. The intestinal microbiome in the febrile seizure children significantly differed from that in the healthy children at the phylum level. Ten differentially accumulated metabolites (xanthosine, (S)-abscisic acid, N-palmitoylglycine, (+/-)-2-(5-methyl-5-vinyl-tetrahydrofuran-2-yl) propionaldehyde, (R)-3-hydroxybutyrylcarnitine, lauroylcarnitine, oleoylethanolamide, tetradecyl carnitine, taurine, and lysoPC [18:1 (9z)/0:0] were considered the potential febrile seizure markers. Three metabolic pathways (taurine metabolism; glycine, serine, and threonine metabolism; and arginine biosynthesis) were found essential in febrile seizure. Bacteroides were significantly correlated with the 4 differential metabolites. Adjusting the balance of intestinal flora may be an effective method for preventing and treating febrile seizures.
Related Concept Videos
Bacterial Flora of the Large Intestine
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
Anatomy of the Intestines
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents
Drugs for Treatment of Diarrhea-Predominant IBS
Two specific drugs used in the treatment are alosetron (Lotronex) and eluxadoline (Viberzi). Alosetron, a 5-HT3 antagonist, works by slowing the movement of stools in the gut, reducing bowel...

