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Gut microbiota and physiologic bowel (18)F-FDG uptake
BACKGROUND: We investigated the association between physiologic bowel FDG uptake and gut microbiota. FDG uptake in the normal large and small intestine is widely variable both in distribution and intensity. The etiology of physiologic bowel (18)F-FDG activity remains unknown. RESULTS: We included 63...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5578947/ https://www.ncbi.nlm.nih.gov/pubmed/28861740 http://dx.doi.org/10.1186/s13550-017-0318-8 |
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author | Kang, Ji Yeon Kim, Han-Na Chang, Yoosoo Yun, Yeojun Ryu, Seungho Shin, Hocheol Kim, Hyung-Lae |
author_facet | Kang, Ji Yeon Kim, Han-Na Chang, Yoosoo Yun, Yeojun Ryu, Seungho Shin, Hocheol Kim, Hyung-Lae |
author_sort | Kang, Ji Yeon |
collection | PubMed |
description | BACKGROUND: We investigated the association between physiologic bowel FDG uptake and gut microbiota. FDG uptake in the normal large and small intestine is widely variable both in distribution and intensity. The etiology of physiologic bowel (18)F-FDG activity remains unknown. RESULTS: We included 63 healthy male subjects. After overnight fasting, blood samples and (18)F-FDG PET/CT scans were taken. Fecal samples were collected, and gut microbiota were analyzed by 16S rRNA gene-pyrosequencing. The physiologic bowel FDG uptake was classified into three groups by visual assessment and measured using the maximum and mean standardized uptake value. We used the total bowel to liver uptake ratio (TBR(max) and TBR(mean)). There was no significant difference in age, BMI, or lipid profiles between groups. To identify specific microbial taxa associated with the bowel FDG uptake while accounting for age and BMI, we performed a generalized linear model. At the genus level, the group with focal or intense FDG uptake in the intestine was associated with low abundance of unclassified Clostridiales. The group with intestinal FDG uptake lower than the liver was associated with high abundance of Klebsiella. TBR(max) and TBR(mean) were negatively associated with abundance of unclassified Enterobacteriaceae. CONCLUSION: We cautiously speculate that physiologic bowel FDG activity might be caused by an increase in intestinal permeability and may reflect an impaired barrier function in the intestine. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s13550-017-0318-8) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-5578947 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-55789472017-09-18 Gut microbiota and physiologic bowel (18)F-FDG uptake Kang, Ji Yeon Kim, Han-Na Chang, Yoosoo Yun, Yeojun Ryu, Seungho Shin, Hocheol Kim, Hyung-Lae EJNMMI Res Original Research BACKGROUND: We investigated the association between physiologic bowel FDG uptake and gut microbiota. FDG uptake in the normal large and small intestine is widely variable both in distribution and intensity. The etiology of physiologic bowel (18)F-FDG activity remains unknown. RESULTS: We included 63 healthy male subjects. After overnight fasting, blood samples and (18)F-FDG PET/CT scans were taken. Fecal samples were collected, and gut microbiota were analyzed by 16S rRNA gene-pyrosequencing. The physiologic bowel FDG uptake was classified into three groups by visual assessment and measured using the maximum and mean standardized uptake value. We used the total bowel to liver uptake ratio (TBR(max) and TBR(mean)). There was no significant difference in age, BMI, or lipid profiles between groups. To identify specific microbial taxa associated with the bowel FDG uptake while accounting for age and BMI, we performed a generalized linear model. At the genus level, the group with focal or intense FDG uptake in the intestine was associated with low abundance of unclassified Clostridiales. The group with intestinal FDG uptake lower than the liver was associated with high abundance of Klebsiella. TBR(max) and TBR(mean) were negatively associated with abundance of unclassified Enterobacteriaceae. CONCLUSION: We cautiously speculate that physiologic bowel FDG activity might be caused by an increase in intestinal permeability and may reflect an impaired barrier function in the intestine. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s13550-017-0318-8) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2017-08-31 /pmc/articles/PMC5578947/ /pubmed/28861740 http://dx.doi.org/10.1186/s13550-017-0318-8 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Original Research Kang, Ji Yeon Kim, Han-Na Chang, Yoosoo Yun, Yeojun Ryu, Seungho Shin, Hocheol Kim, Hyung-Lae Gut microbiota and physiologic bowel (18)F-FDG uptake |
title | Gut microbiota and physiologic bowel (18)F-FDG uptake |
title_full | Gut microbiota and physiologic bowel (18)F-FDG uptake |
title_fullStr | Gut microbiota and physiologic bowel (18)F-FDG uptake |
title_full_unstemmed | Gut microbiota and physiologic bowel (18)F-FDG uptake |
title_short | Gut microbiota and physiologic bowel (18)F-FDG uptake |
title_sort | gut microbiota and physiologic bowel (18)f-fdg uptake |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5578947/ https://www.ncbi.nlm.nih.gov/pubmed/28861740 http://dx.doi.org/10.1186/s13550-017-0318-8 |
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