Influence of dietary supplementation with two distinct probiotic strains, Bifidobacterium longum R0175 and Lacticaseibacillus rhamnosus JB-1, on seizure susceptibility and valproate response: Behavioral and biochemical studies in mice
Piotr Wlaź DVM, PhD , Karolina Skonieczna-Żydecka PhD , Adrian Wiater PhD , Daniel Styburski PhD , Małgorzata Majewska PhD , Anna Boguszewska-Czubara MD, PhD , Elżbieta Wyska PhD , Alan González-Ibarra PhD , Nikola Gapińska MSc , Dorota Luchowska-Kocot MD, PhD , Renata Żelazowska MD, PhD , Marcin Grąz PhD , Katarzyna Socała PhD
{"title":"Influence of dietary supplementation with two distinct probiotic strains, Bifidobacterium longum R0175 and Lacticaseibacillus rhamnosus JB-1, on seizure susceptibility and valproate response: Behavioral and biochemical studies in mice","authors":"Piotr Wlaź DVM, PhD , Karolina Skonieczna-Żydecka PhD , Adrian Wiater PhD , Daniel Styburski PhD , Małgorzata Majewska PhD , Anna Boguszewska-Czubara MD, PhD , Elżbieta Wyska PhD , Alan González-Ibarra PhD , Nikola Gapińska MSc , Dorota Luchowska-Kocot MD, PhD , Renata Żelazowska MD, PhD , Marcin Grąz PhD , Katarzyna Socała PhD","doi":"10.1016/j.nut.2025.113083","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>Accumulating preclinical and clinical evidence suggests potential beneficial effects of probiotic supplementation in the management of epilepsy. Here, we aimed to investigate the effect of two distinct bacterial strains, <em>Bifidobacterium longum</em> R0175 and <em>Lacticaseibacillus rhamnosus</em> JB-1, on seizure susceptibility, the antiseizure efficacy of sodium valproate, behavioral and neurochemical parameters, and gut metabolomic profiles in mice.</div></div><div><h3>Methods</h3><div>Mice received daily oral administration of either <em>B. longum</em> R0175 or <em>L. rhamnosus</em> JB-1 for 28 d. Seizure thresholds were assessed using the maximal electroshock seizure threshold (MEST) test, the 6 Hz seizure threshold test, and the intravenous (<em>iv</em>) pentylenetetrazole (PTZ) seizure test. The efficacy of sodium valproate was evaluated in the subcutaneous (<em>sc</em>) PTZ seizure test. Additional assessments included anxiety-related behavior, neuromotor functions, brain neurochemical and inflammatory markers, fecal short-chain fatty acids (SCFAs), and untargeted metabolomic profiling of fecal samples.</div></div><div><h3>Results</h3><div><em>B. longum</em> R0175 and <em>L. rhamnosus</em> JB-1 did not affect the thresholds for tonic seizures in the MEST test and for psychomotor seizures in the 6 Hz test. <em>B. longum</em> R0175 slightly increased the threshold for myoclonic seizures in the <em>iv</em>PTZ. Both strains enhanced the antiseizure efficacy of sodium valproate without altering its serum or brain concentrations. No significant effects were observed on anxiety-related behavior, neuromotor function, neurochemical or inflammatory markers. Both probiotics increased the concentration of butyrate and total SCFAs in fecal samples. Metabolomic analysis revealed variations in the metabolism of bile acids, polyphenols, fatty acids, and amino acids.</div></div><div><h3>Conclusions</h3><div>The probiotics alone had minimal effects on seizure thresholds, but they enhanced the antiseizure efficacy of valproate, which may be linked to increased SCFA production and altered gut metabolism. These findings support further studies on probiotics as a complementary strategy in epilepsy treatment.</div></div>","PeriodicalId":19482,"journal":{"name":"Nutrition","volume":"145 ","pages":"Article 113083"},"PeriodicalIF":3.6000,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nutrition","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0899900725004009","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/12/24 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"NUTRITION & DIETETICS","Score":null,"Total":0}
引用次数: 0
Abstract
Objective
Accumulating preclinical and clinical evidence suggests potential beneficial effects of probiotic supplementation in the management of epilepsy. Here, we aimed to investigate the effect of two distinct bacterial strains, Bifidobacterium longum R0175 and Lacticaseibacillus rhamnosus JB-1, on seizure susceptibility, the antiseizure efficacy of sodium valproate, behavioral and neurochemical parameters, and gut metabolomic profiles in mice.
Methods
Mice received daily oral administration of either B. longum R0175 or L. rhamnosus JB-1 for 28 d. Seizure thresholds were assessed using the maximal electroshock seizure threshold (MEST) test, the 6 Hz seizure threshold test, and the intravenous (iv) pentylenetetrazole (PTZ) seizure test. The efficacy of sodium valproate was evaluated in the subcutaneous (sc) PTZ seizure test. Additional assessments included anxiety-related behavior, neuromotor functions, brain neurochemical and inflammatory markers, fecal short-chain fatty acids (SCFAs), and untargeted metabolomic profiling of fecal samples.
Results
B. longum R0175 and L. rhamnosus JB-1 did not affect the thresholds for tonic seizures in the MEST test and for psychomotor seizures in the 6 Hz test. B. longum R0175 slightly increased the threshold for myoclonic seizures in the ivPTZ. Both strains enhanced the antiseizure efficacy of sodium valproate without altering its serum or brain concentrations. No significant effects were observed on anxiety-related behavior, neuromotor function, neurochemical or inflammatory markers. Both probiotics increased the concentration of butyrate and total SCFAs in fecal samples. Metabolomic analysis revealed variations in the metabolism of bile acids, polyphenols, fatty acids, and amino acids.
Conclusions
The probiotics alone had minimal effects on seizure thresholds, but they enhanced the antiseizure efficacy of valproate, which may be linked to increased SCFA production and altered gut metabolism. These findings support further studies on probiotics as a complementary strategy in epilepsy treatment.
期刊介绍:
Nutrition has an open access mirror journal Nutrition: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Founded by Michael M. Meguid in the early 1980''s, Nutrition presents advances in nutrition research and science, informs its readers on new and advancing technologies and data in clinical nutrition practice, encourages the application of outcomes research and meta-analyses to problems in patient-related nutrition; and seeks to help clarify and set the research, policy and practice agenda for nutrition science to enhance human well-being in the years ahead.