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Molecules 2016, 21(11), 1558; doi:10.3390/molecules21111558

Gut Bacteria and Hydrogen Sulfide: The New Old Players in Circulatory System Homeostasis

1
Department of Experimental Physiology and Pathophysiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw 02 091, Poland
2
Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, Bratislava 845 05, Slovakia
*
Author to whom correspondence should be addressed.
Academic Editors: Noriyuki Nagahara and Maria Wrobel
Received: 5 October 2016 / Revised: 31 October 2016 / Accepted: 14 November 2016 / Published: 17 November 2016
(This article belongs to the Special Issue Sulfur Atom: Element for Adaptation to an Oxidative Environment 2016)
View Full-Text   |   Download PDF [652 KB, uploaded 17 November 2016]   |  

Abstract

Accumulating evidence suggests that gut bacteria play a role in homeostasis of the circulatory system in mammals. First, gut bacteria may affect the nervous control of the circulatory system via the sensory fibres of the enteric nervous system. Second, gut bacteria-derived metabolites may cross the gut-blood barrier and target blood vessels, the heart and other organs involved in the regulation of the circulatory system. A number of studies have shown that hydrogen sulfide (H2S) is an important biological mediator in the circulatory system. Thus far, research has focused on the effects of H2S enzymatically produced by cardiovascular tissues. However, some recent evidence indicates that H2S released in the colon may also contribute to the control of arterial blood pressure. Incidentally, sulfate-reducing bacteria are ubiquitous in mammalian colon, and H2S is just one among a number of molecules produced by the gut flora. Other gut bacteria-derived compounds that may affect the circulatory system include methane, nitric oxide, carbon monoxide, trimethylamine or indole. In this paper, we review studies that imply a role of gut microbiota and their metabolites, such as H2S, in circulatory system homeostasis. View Full-Text
Keywords: microbiota; gut bacteria; hydrogen sulfide; sulfur; TMAO; indole; cardiovascular diseases; hypertension microbiota; gut bacteria; hydrogen sulfide; sulfur; TMAO; indole; cardiovascular diseases; hypertension
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Tomasova, L.; Konopelski, P.; Ufnal, M. Gut Bacteria and Hydrogen Sulfide: The New Old Players in Circulatory System Homeostasis. Molecules 2016, 21, 1558.

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