The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs

Abstract Idiopathic epilepsy (IE) is the most common chronic neurological disease in dogs, and a natural animal model for human epilepsy types with genetic and unknown etiology. The microbiota-gut-brain axis (MGBA) is a promising target for improving brain health in individuals where brain function...

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Main Authors: Fien Verdoodt, Myriam Hesta, Evy Goossens, Filip Van Immerseel, Jenifer Molina, Luc Van Ham, Lynn Vanhaecke, Lieselot Y. Hemeryck, Sofie F.M. Bhatti
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-09919-7
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author Fien Verdoodt
Myriam Hesta
Evy Goossens
Filip Van Immerseel
Jenifer Molina
Luc Van Ham
Lynn Vanhaecke
Lieselot Y. Hemeryck
Sofie F.M. Bhatti
author_facet Fien Verdoodt
Myriam Hesta
Evy Goossens
Filip Van Immerseel
Jenifer Molina
Luc Van Ham
Lynn Vanhaecke
Lieselot Y. Hemeryck
Sofie F.M. Bhatti
author_sort Fien Verdoodt
collection DOAJ
description Abstract Idiopathic epilepsy (IE) is the most common chronic neurological disease in dogs, and a natural animal model for human epilepsy types with genetic and unknown etiology. The microbiota-gut-brain axis (MGBA) is a promising target for improving brain health in individuals where brain function is hampered. It’s role in the pathophysiology of epilepsy remains however unclear. We aimed to identify differences in fecal metabolome and microbiome between healthy and dogs with IE. To this purpose, fecal samples of healthy (n = 39) and dogs with IE (n = 49) were metabolically profiled (n = 148 metabolites) and fingerprinted (n = 3690 features) using liquid chromatography coupled to mass spectrometry, and the bacterial phylogeny examined using 16 S rRNA sequencing. Dogs with IE were categorized as drug-resistant (DR) (n = 27) or mild phenotype (MP) (n = 22). In dogs with DR IE compared to healthy, fecal metabolites such as histamine (P = 0.022) and microbiome genera such as Escherichia-Shigella (P = 0.021) increased, associated with a proinflammatory environment. In dogs with MP IE compared to healthy, alterations associated with anti-inflammatory properties, such as increased fecal serotonin (P = 0.034) and Blautia hominis (P = 0.012) were revealed. Overall, a role for the MGBA communication in canine IE was established.
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spelling doaj-art-820192579c1f497e95e6bf8fc9e36dda2025-08-20T04:03:00ZengNature PortfolioScientific Reports2045-23222025-07-0115111510.1038/s41598-025-09919-7The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogsFien Verdoodt0Myriam Hesta1Evy Goossens2Filip Van Immerseel3Jenifer Molina4Luc Van Ham5Lynn Vanhaecke6Lieselot Y. Hemeryck7Sofie F.M. Bhatti8Equine and Companion Animal Nutrition, Department of Morphology, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, Ghent UniversityEquine and Companion Animal Nutrition, Department of Morphology, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, Ghent UniversityLivestock Gut Health Team (LiGHT) Ghent, Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent UniversityLivestock Gut Health Team (LiGHT) Ghent, Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent UniversityNestlé Purina PetCare EUROPESmall Animal Department, Faculty of Veterinary Medicine, Ghent UniversityLaboratory of Integrative Metabolomics (LIMET), Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent UniversityLaboratory of Integrative Metabolomics (LIMET), Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent UniversitySmall Animal Department, Faculty of Veterinary Medicine, Ghent UniversityAbstract Idiopathic epilepsy (IE) is the most common chronic neurological disease in dogs, and a natural animal model for human epilepsy types with genetic and unknown etiology. The microbiota-gut-brain axis (MGBA) is a promising target for improving brain health in individuals where brain function is hampered. It’s role in the pathophysiology of epilepsy remains however unclear. We aimed to identify differences in fecal metabolome and microbiome between healthy and dogs with IE. To this purpose, fecal samples of healthy (n = 39) and dogs with IE (n = 49) were metabolically profiled (n = 148 metabolites) and fingerprinted (n = 3690 features) using liquid chromatography coupled to mass spectrometry, and the bacterial phylogeny examined using 16 S rRNA sequencing. Dogs with IE were categorized as drug-resistant (DR) (n = 27) or mild phenotype (MP) (n = 22). In dogs with DR IE compared to healthy, fecal metabolites such as histamine (P = 0.022) and microbiome genera such as Escherichia-Shigella (P = 0.021) increased, associated with a proinflammatory environment. In dogs with MP IE compared to healthy, alterations associated with anti-inflammatory properties, such as increased fecal serotonin (P = 0.034) and Blautia hominis (P = 0.012) were revealed. Overall, a role for the MGBA communication in canine IE was established.https://doi.org/10.1038/s41598-025-09919-7EpilepsyGut-Brain-AxisMetabolomicsMicrobiomeCanine
spellingShingle Fien Verdoodt
Myriam Hesta
Evy Goossens
Filip Van Immerseel
Jenifer Molina
Luc Van Ham
Lynn Vanhaecke
Lieselot Y. Hemeryck
Sofie F.M. Bhatti
The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs
Scientific Reports
Epilepsy
Gut-Brain-Axis
Metabolomics
Microbiome
Canine
title The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs
title_full The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs
title_fullStr The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs
title_full_unstemmed The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs
title_short The fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs
title_sort fecal metabolome and microbiome are altered in dogs with idiopathic epilepsy compared to healthy dogs
topic Epilepsy
Gut-Brain-Axis
Metabolomics
Microbiome
Canine
url https://doi.org/10.1038/s41598-025-09919-7
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