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Disturbed gut microbiota and bile homeostasis in Giardia-infected mice contributes to metabolic dysregulation and growth impairment.
Sci. Transl. Med. 12:eaay7019 (2020)
Although infection with the human enteropathogen Giardia lamblia causes self-limited diarrhea in adults, infant populations in endemic areas experience persistent pathogen carriage in the absence of diarrhea. The persistence of this protozoan parasite in infants has been associated with reduced weight gain and linear growth (height-for-age). The mechanisms that support persistent infection and determine the different disease outcomes in the infant host are incompletely understood. Using a neonatal mouse model of persistent G. lamblia infection, we demonstrate that G. lamblia induced bile secretion and used the bile constituent phosphatidylcholine as a substrate for parasite growth. In addition, we show that G. lamblia infection altered the enteric microbiota composition, leading to enhanced bile acid deconjugation and increased expression of fibroblast growth factor 15. This resulted in elevated energy expenditure and dysregulated lipid metabolism with reduced adipose tissue, body weight gain, and growth in the infected mice. Our results indicate that this enteropathogen's modulation of bile acid metabolism and lipid metabolism in the neonatal mouse host led to an altered body composition, suggesting how G. lamblia infection could contribute to growth restriction in infants in endemic areas.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
16.304
3.022
10
13
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Developing-countries; Diarrheal Disease; Lipid-metabolism; Lamblia; Duodenalis; Acid; Children; Responses; Infants; Impact
Sprache
englisch
Veröffentlichungsjahr
2020
HGF-Berichtsjahr
2020
ISSN (print) / ISBN
1946-6234
e-ISSN
1946-6242
Zeitschrift
Science Translational Medicine
Quellenangaben
Band: 12,
Heft: 565,
Artikelnummer: eaay7019
Verlag
American Association for the Advancement of Science (AAAS)
Verlagsort
1200 New York Ave, Nw, Washington, Dc 20005 Usa
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30202 - Environmental Health
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-504800-001
Förderungen
Niedersachsen-Research Network on Neuroinfectiology (N-RENNT)
Interdisciplinary Center for Clinical Research within the Faculty of Medicine at RWTH Aachen University
Cluster of Excellence RESIST, Hannover Medical School
German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig
Center for Systems Neuroscience (ZSN), Hannover, Germany
German Research Foundation (DFG)
Interdisciplinary Center for Clinical Research within the Faculty of Medicine at RWTH Aachen University
Cluster of Excellence RESIST, Hannover Medical School
German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig
Center for Systems Neuroscience (ZSN), Hannover, Germany
German Research Foundation (DFG)
WOS ID
WOS:000581127400003
Scopus ID
85093494260
PubMed ID
33055245
Erfassungsdatum
2020-11-13