Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic Shunts

BackgroundThe GI microbiome has not been characterized in dogs being medically managed for congenital portosystemic shunts (CPSS).ObjectivesTo characterize the fecal microbiome in a population of dogs being medically managed for CPSS.Animals27 client-owned dogs.MethodsProspective cohort study enroll...

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Main Authors: Nathan Squire, Cassie Lux, Katie Tolbert, Jonathan Lidbury, Xiaocun Sun, Jan S. Suchodolski
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Veterinary Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2022.897760/full
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author Nathan Squire
Cassie Lux
Katie Tolbert
Jonathan Lidbury
Xiaocun Sun
Jan S. Suchodolski
author_facet Nathan Squire
Cassie Lux
Katie Tolbert
Jonathan Lidbury
Xiaocun Sun
Jan S. Suchodolski
author_sort Nathan Squire
collection DOAJ
description BackgroundThe GI microbiome has not been characterized in dogs being medically managed for congenital portosystemic shunts (CPSS).ObjectivesTo characterize the fecal microbiome in a population of dogs being medically managed for CPSS.Animals27 client-owned dogs.MethodsProspective cohort study enrollment of fecal samples was performed with follow-up data collected retrospectively. The overall fecal dysbiosis index (DI) and individual bacterial abundances were determined using real-time qPCR. Medical management, clinical findings, clinicopathologic, and outcome variables were collected, and logistic regression analyses were performed to evaluate associations between these variables and overall DI and bacterial abundances. Numerical variables were evaluated with general linear models for normality and equal variance using Shapiro-Wilk test and Levene's test, respectively.ResultsAll dogs were administered a hepatic diet and lactulose, while antibiotics were used in 22 (81.5%) and acid suppressants in 7 (25.9%). Seventeen dogs (63.0%) had a DI >2. The median DI in this population was 3.02 (range 4.23–8.42), and the median DI in dogs receiving and not receiving antibiotics was 4.3 (range −4.23–8.42) and 1.52 (range −1.62–5.43), respectively. No significant association between any of the analyzed variables and the DI was identified. There was a significant association between the use of metronidazole and a larger abundance of E. coli (p = 0.024).Conclusions and Clinical ImportanceDysbiosis appears to be common in dogs that are being medically managed for CPSS, though the clinical significance remains unclear.
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spelling doaj.art-289922e6265b4b44a8de92c3764b40a52022-12-22T00:58:54ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692022-07-01910.3389/fvets.2022.897760897760Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic ShuntsNathan Squire0Cassie Lux1Katie Tolbert2Jonathan Lidbury3Xiaocun Sun4Jan S. Suchodolski5Department of Small Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, United StatesDepartment of Small Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, United StatesDepartment of Veterinary Small Animal Clinical Sciences, Texas A&M College of Veterinary Medicine and Biomedical Sciences, College Station, TX, United StatesDepartment of Veterinary Small Animal Clinical Sciences, Texas A&M College of Veterinary Medicine and Biomedical Sciences, College Station, TX, United StatesOffice of Information and Technology, University of Tennessee Knoxville, Knoxville, TN, United StatesDepartment of Veterinary Small Animal Clinical Sciences, Texas A&M College of Veterinary Medicine and Biomedical Sciences, College Station, TX, United StatesBackgroundThe GI microbiome has not been characterized in dogs being medically managed for congenital portosystemic shunts (CPSS).ObjectivesTo characterize the fecal microbiome in a population of dogs being medically managed for CPSS.Animals27 client-owned dogs.MethodsProspective cohort study enrollment of fecal samples was performed with follow-up data collected retrospectively. The overall fecal dysbiosis index (DI) and individual bacterial abundances were determined using real-time qPCR. Medical management, clinical findings, clinicopathologic, and outcome variables were collected, and logistic regression analyses were performed to evaluate associations between these variables and overall DI and bacterial abundances. Numerical variables were evaluated with general linear models for normality and equal variance using Shapiro-Wilk test and Levene's test, respectively.ResultsAll dogs were administered a hepatic diet and lactulose, while antibiotics were used in 22 (81.5%) and acid suppressants in 7 (25.9%). Seventeen dogs (63.0%) had a DI >2. The median DI in this population was 3.02 (range 4.23–8.42), and the median DI in dogs receiving and not receiving antibiotics was 4.3 (range −4.23–8.42) and 1.52 (range −1.62–5.43), respectively. No significant association between any of the analyzed variables and the DI was identified. There was a significant association between the use of metronidazole and a larger abundance of E. coli (p = 0.024).Conclusions and Clinical ImportanceDysbiosis appears to be common in dogs that are being medically managed for CPSS, though the clinical significance remains unclear.https://www.frontiersin.org/articles/10.3389/fvets.2022.897760/fulldysbiosis indexhepatic encephalopathy (HE)lactulosequantitative polymerase chain reaction (qPCR)portosystemic shunt (CPSS)
spellingShingle Nathan Squire
Cassie Lux
Katie Tolbert
Jonathan Lidbury
Xiaocun Sun
Jan S. Suchodolski
Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic Shunts
Frontiers in Veterinary Science
dysbiosis index
hepatic encephalopathy (HE)
lactulose
quantitative polymerase chain reaction (qPCR)
portosystemic shunt (CPSS)
title Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic Shunts
title_full Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic Shunts
title_fullStr Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic Shunts
title_full_unstemmed Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic Shunts
title_short Characterization of the Fecal Microbiome in Dogs Receiving Medical Management for Congenital Portosystemic Shunts
title_sort characterization of the fecal microbiome in dogs receiving medical management for congenital portosystemic shunts
topic dysbiosis index
hepatic encephalopathy (HE)
lactulose
quantitative polymerase chain reaction (qPCR)
portosystemic shunt (CPSS)
url https://www.frontiersin.org/articles/10.3389/fvets.2022.897760/full
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