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Gastrointestinal dysbiosis following diethylhexyl phthalate exposure in zebrafish (Danio rerio): Altered microbial diversity, functionality, and network connectivity.
Buerger, Amanda N; Dillon, David T; Schmidt, Jordan; Yang, Tao; Zubcevic, Jasenka; Martyniuk, Christopher J; Bisesi, Joseph H.
Afiliación
  • Buerger AN; Department of Environmental and Global Health, University of Florida, Gainesville, FL, USA; Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL, USA.
  • Dillon DT; Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL, USA; Department of Anthropology, University of Florida, Gainesville, FL, USA.
  • Schmidt J; Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL, USA; Department of Physiological Sciences, University of Florida, Gainesville, FL, USA.
  • Yang T; The Center for Hypertension and Precision Medicine, University of Toledo College of Medicine and Life Sciences, OH, USA; Physiological Genomics Laboratory, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, OH, USA.
  • Zubcevic J; Department of Physiological Sciences, University of Florida, Gainesville, FL, USA.
  • Martyniuk CJ; Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL, USA; Department of Physiological Sciences, University of Florida, Gainesville, FL, USA.
  • Bisesi JH; Department of Environmental and Global Health, University of Florida, Gainesville, FL, USA; Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL, USA. Electronic address: jbisesi@phhp.ufl.edu.
Environ Pollut ; 265(Pt B): 114496, 2020 Oct.
Article en En | MEDLINE | ID: mdl-32806437
Microbiome community structure is intimately involved in key biological functions in the gastrointestinal (GI) system including nutrient absorption and lipid metabolism. Recent evidence suggests that disruption of the GI microbiome is a contributing factor to metabolic disorders and obesity. Poor diet and chemical exposure have been independently shown to cause disruption of the GI microbiome community structure and function. We hypothesized that the addition a chemical exposure to overfeeding exacerbates adverse effects on the GI microbiome community structure and function. To test this hypothesis, adult zebrafish were fed a normal feeding regime (Control), an overfeeding regime (OF), or an overfeeding regime contaminated with diethylhexyl phthalate (OF + DEHP), a suspected obesogen-inducing chemical. After 60 days, fecal matter was collected for sequencing, identification, and quantification of the GI microbiome using the 16s rRNA hypervariable region. Analysis of beta diversity indicated distinct microbial profiles between treatments with the largest divergence between Control and OF + DEHP groups. Based upon functional predictions, OF + DEHP treatment altered carbohydrate metabolism, while both OF and OF + DEHP affected biosynthesis of fatty acids and lipid metabolism. Co-occurrence network analysis revealed decreases in cluster size and a fracturing of the microbial community network into unconnected components and a loss of keystone species in the OF + DEHP treatment when compared to Control and OF treatments. Data suggest that the addition of DEHP in the diet may exacerbate microbial dysbiosis, a consequence that may explain in part its role as an obesogenic chemical.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tracto Gastrointestinal / Dietilhexil Ftalato Tipo de estudio: Prognostic_studies Límite: Animals Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tracto Gastrointestinal / Dietilhexil Ftalato Tipo de estudio: Prognostic_studies Límite: Animals Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido