Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in Dogs

Bile acid metabolism is a key pathway modulated by intestinal microbiota. <i>Peptacetobacter</i> (<i>Clostridium</i>) <i>hiranonis</i> has been described as the main species responsible for the conversion of primary into secondary fecal unconjugated bile acids (fU...

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Main Authors: Bruna Correa Lopes, Chih-Chun Chen, Chi-Hsuan Sung, Patricia Eri Ishii, Luis Fernando da Costa Medina, Frederic P. Gaschen, Jan S. Suchodolski, Rachel Pilla
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/14/2/216
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author Bruna Correa Lopes
Chih-Chun Chen
Chi-Hsuan Sung
Patricia Eri Ishii
Luis Fernando da Costa Medina
Frederic P. Gaschen
Jan S. Suchodolski
Rachel Pilla
author_facet Bruna Correa Lopes
Chih-Chun Chen
Chi-Hsuan Sung
Patricia Eri Ishii
Luis Fernando da Costa Medina
Frederic P. Gaschen
Jan S. Suchodolski
Rachel Pilla
author_sort Bruna Correa Lopes
collection DOAJ
description Bile acid metabolism is a key pathway modulated by intestinal microbiota. <i>Peptacetobacter</i> (<i>Clostridium</i>) <i>hiranonis</i> has been described as the main species responsible for the conversion of primary into secondary fecal unconjugated bile acids (fUBA) in dogs. This multi-step biochemical pathway is encoded by the bile acid-inducible (<i>bai</i>) operon. We aimed to assess the correlation between <i>P. hiranonis</i> abundance, the abundance of one specific gene of the <i>bai</i> operon (<i>baiCD</i>), and secondary fUBA concentrations. In this retrospective study, 133 fecal samples were analyzed from 24 dogs. The abundances of <i>P. hiranonis</i> and <i>baiCD</i> were determined using qPCR. The concentration of fUBA was measured by gas chromatography–mass spectrometry. The <i>baiCD</i> abundance exhibited a strong positive correlation with secondary fUBA (ρ = 0.7377, 95% CI (0.6461, 0.8084), <i>p</i> < 0.0001). Similarly, there was a strong correlation between <i>P. hiranonis</i> and secondary fUBA (ρ = 0.6658, 95% CI (0.5555, 0.7532), <i>p <</i> 0.0001). Animals displaying conversion of fUBA and lacking <i>P. hiranonis</i> were not observed. These results suggest <i>P. hiranonis</i> is the main converter of primary to secondary bile acids in dogs.
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spelling doaj.art-e84e27ffef6d48a1bff1d41b410e96842024-01-26T14:31:00ZengMDPI AGAnimals2076-26152024-01-0114221610.3390/ani14020216Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in DogsBruna Correa Lopes0Chih-Chun Chen1Chi-Hsuan Sung2Patricia Eri Ishii3Luis Fernando da Costa Medina4Frederic P. Gaschen5Jan S. Suchodolski6Rachel Pilla7Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77840, USAGastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77840, USAGastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77840, USAGastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77840, USAGastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77840, USADepartment of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USAGastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77840, USAGastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77840, USABile acid metabolism is a key pathway modulated by intestinal microbiota. <i>Peptacetobacter</i> (<i>Clostridium</i>) <i>hiranonis</i> has been described as the main species responsible for the conversion of primary into secondary fecal unconjugated bile acids (fUBA) in dogs. This multi-step biochemical pathway is encoded by the bile acid-inducible (<i>bai</i>) operon. We aimed to assess the correlation between <i>P. hiranonis</i> abundance, the abundance of one specific gene of the <i>bai</i> operon (<i>baiCD</i>), and secondary fUBA concentrations. In this retrospective study, 133 fecal samples were analyzed from 24 dogs. The abundances of <i>P. hiranonis</i> and <i>baiCD</i> were determined using qPCR. The concentration of fUBA was measured by gas chromatography–mass spectrometry. The <i>baiCD</i> abundance exhibited a strong positive correlation with secondary fUBA (ρ = 0.7377, 95% CI (0.6461, 0.8084), <i>p</i> < 0.0001). Similarly, there was a strong correlation between <i>P. hiranonis</i> and secondary fUBA (ρ = 0.6658, 95% CI (0.5555, 0.7532), <i>p <</i> 0.0001). Animals displaying conversion of fUBA and lacking <i>P. hiranonis</i> were not observed. These results suggest <i>P. hiranonis</i> is the main converter of primary to secondary bile acids in dogs.https://www.mdpi.com/2076-2615/14/2/216fecal unconjugated bile acidscanine<i>Clostridium hiranonis</i>primary bile acidsconversion of bile acidsbile acid metabolism
spellingShingle Bruna Correa Lopes
Chih-Chun Chen
Chi-Hsuan Sung
Patricia Eri Ishii
Luis Fernando da Costa Medina
Frederic P. Gaschen
Jan S. Suchodolski
Rachel Pilla
Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in Dogs
Animals
fecal unconjugated bile acids
canine
<i>Clostridium hiranonis</i>
primary bile acids
conversion of bile acids
bile acid metabolism
title Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in Dogs
title_full Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in Dogs
title_fullStr Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in Dogs
title_full_unstemmed Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in Dogs
title_short Correlation between <i>Peptacetobacter hiranonis</i>, the <i>baiCD</i> Gene, and Secondary Bile Acids in Dogs
title_sort correlation between i peptacetobacter hiranonis i the i baicd i gene and secondary bile acids in dogs
topic fecal unconjugated bile acids
canine
<i>Clostridium hiranonis</i>
primary bile acids
conversion of bile acids
bile acid metabolism
url https://www.mdpi.com/2076-2615/14/2/216
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