Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary study

Abstract Background Idiopathic epilepsy (IE) is a common, chronic brain dysfunction in dogs. Recently, the effect of feeding a diet enriched with medium-chain triglycerides (MCTs) on seizure frequency has been evaluated in several studies in dogs with IE. However, most dogs with IE in previous studi...

Full description

Bibliographic Details
Main Authors: Kazumasa Nakatsuka, Brian Zanghi, Daisuke Hasegawa
Format: Article
Language:English
Published: BMC 2023-09-01
Series:BMC Veterinary Research
Subjects:
Online Access:https://doi.org/10.1186/s12917-023-03710-4
_version_ 1827633894484082688
author Kazumasa Nakatsuka
Brian Zanghi
Daisuke Hasegawa
author_facet Kazumasa Nakatsuka
Brian Zanghi
Daisuke Hasegawa
author_sort Kazumasa Nakatsuka
collection DOAJ
description Abstract Background Idiopathic epilepsy (IE) is a common, chronic brain dysfunction in dogs. Recently, the effect of feeding a diet enriched with medium-chain triglycerides (MCTs) on seizure frequency has been evaluated in several studies in dogs with IE. However, most dogs with IE in previous studies were treated with phenobarbital as the main antiseizure medication (ASM). In Japan, zonisamide (ZNS) is the most prescribed ASM for dogs with IE. The interaction between ZNS and various nutrients including MCTs and the potential effects on treatment efficacy resulting from combining these therapies have not been previously studied. A prospective, randomized, double-blinded, placebo-controlled, crossover dietary study was conducted. Dogs (n = 7) treated with ZNS were fed either a placebo diet (PL) or Purina ProPlan Veterinary Diet NeuroCare (NC) for 3 months, after which treatments were crossed over and continued for another 3 months. Seizure frequency (seizures/month; sz/m), blood tests including concentrations of ZNS and β-hydroxybutyric acid, and owner’s visual analogue scale score were collected from all dogs for both treatment periods. Results There was no significant difference in the seizure frequency between PL (2.95 ± 0.80 sz/m) and NC (1.90 ± 0.57 sz/m) during the 6 months of trial. Three of 7 dogs showed ≥ 50% seizure reduction, and 1 of those 3 dogs achieved seizure freedom in NC period. However, 2 of 7 dogs had no changes in epileptic seizure frequency, 2 of 7 dogs had a deterioration in seizure frequency in the NC period. Feeding the MCT diet concurrent with ZNS showed no apparent adverse effects and did not affect ZNS concentration. Conclusions This study indicated that the commercially available MCT-enriched diet (NC) can be safely used concurrently with ZNS for dogs with IE.
first_indexed 2024-03-09T15:05:53Z
format Article
id doaj.art-696c10a6ab9e44f397917672ab8f1228
institution Directory Open Access Journal
issn 1746-6148
language English
last_indexed 2024-03-09T15:05:53Z
publishDate 2023-09-01
publisher BMC
record_format Article
series BMC Veterinary Research
spelling doaj.art-696c10a6ab9e44f397917672ab8f12282023-11-26T13:38:30ZengBMCBMC Veterinary Research1746-61482023-09-0119111010.1186/s12917-023-03710-4Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary studyKazumasa Nakatsuka0Brian Zanghi1Daisuke Hasegawa2Department of Veterinary Pharmacology, Faculty of Agriculture, Tottori UniversityGlobal Nutrition and Communications, Nestlé Purina PetCareLaboratory of Veterinary Radiology, Faculty of Veterinary Science, Nippon Veterinary and Life Science UniversityAbstract Background Idiopathic epilepsy (IE) is a common, chronic brain dysfunction in dogs. Recently, the effect of feeding a diet enriched with medium-chain triglycerides (MCTs) on seizure frequency has been evaluated in several studies in dogs with IE. However, most dogs with IE in previous studies were treated with phenobarbital as the main antiseizure medication (ASM). In Japan, zonisamide (ZNS) is the most prescribed ASM for dogs with IE. The interaction between ZNS and various nutrients including MCTs and the potential effects on treatment efficacy resulting from combining these therapies have not been previously studied. A prospective, randomized, double-blinded, placebo-controlled, crossover dietary study was conducted. Dogs (n = 7) treated with ZNS were fed either a placebo diet (PL) or Purina ProPlan Veterinary Diet NeuroCare (NC) for 3 months, after which treatments were crossed over and continued for another 3 months. Seizure frequency (seizures/month; sz/m), blood tests including concentrations of ZNS and β-hydroxybutyric acid, and owner’s visual analogue scale score were collected from all dogs for both treatment periods. Results There was no significant difference in the seizure frequency between PL (2.95 ± 0.80 sz/m) and NC (1.90 ± 0.57 sz/m) during the 6 months of trial. Three of 7 dogs showed ≥ 50% seizure reduction, and 1 of those 3 dogs achieved seizure freedom in NC period. However, 2 of 7 dogs had no changes in epileptic seizure frequency, 2 of 7 dogs had a deterioration in seizure frequency in the NC period. Feeding the MCT diet concurrent with ZNS showed no apparent adverse effects and did not affect ZNS concentration. Conclusions This study indicated that the commercially available MCT-enriched diet (NC) can be safely used concurrently with ZNS for dogs with IE.https://doi.org/10.1186/s12917-023-03710-4β-hydroxybutyric acidEpilepsyMCT oilMedium-chain triglycerideNeuroCareSeizure
spellingShingle Kazumasa Nakatsuka
Brian Zanghi
Daisuke Hasegawa
Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary study
BMC Veterinary Research
β-hydroxybutyric acid
Epilepsy
MCT oil
Medium-chain triglyceride
NeuroCare
Seizure
title Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary study
title_full Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary study
title_fullStr Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary study
title_full_unstemmed Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary study
title_short Efficacy evaluation of a commercially available MCT enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide: a prospective, randomized, double-blinded, placebo-controlled, crossover dietary preliminary study
title_sort efficacy evaluation of a commercially available mct enriched therapeutic diet on dogs with idiopathic epilepsy treated with zonisamide a prospective randomized double blinded placebo controlled crossover dietary preliminary study
topic β-hydroxybutyric acid
Epilepsy
MCT oil
Medium-chain triglyceride
NeuroCare
Seizure
url https://doi.org/10.1186/s12917-023-03710-4
work_keys_str_mv AT kazumasanakatsuka efficacyevaluationofacommerciallyavailablemctenrichedtherapeuticdietondogswithidiopathicepilepsytreatedwithzonisamideaprospectiverandomizeddoubleblindedplacebocontrolledcrossoverdietarypreliminarystudy
AT brianzanghi efficacyevaluationofacommerciallyavailablemctenrichedtherapeuticdietondogswithidiopathicepilepsytreatedwithzonisamideaprospectiverandomizeddoubleblindedplacebocontrolledcrossoverdietarypreliminarystudy
AT daisukehasegawa efficacyevaluationofacommerciallyavailablemctenrichedtherapeuticdietondogswithidiopathicepilepsytreatedwithzonisamideaprospectiverandomizeddoubleblindedplacebocontrolledcrossoverdietarypreliminarystudy