Methane, a gut bacteria-produced gas, does not affect arterial blood pressure in normotensive anaesthetized rats.
Zaorska, E.; Gawrys-Kopczynska, M.; Ostaszewski, R.; Koszelewski, D.; Ufnal, M.
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Methane is produced by carbohydrate fermentation in the gastrointestinal tract through the metabolism of methanogenic microbiota. Several lines of evidence suggest that methane exerts anti-inflammatory, anti-apoptotic and anti-oxidative effects. The effect of methane on cardiovascular system is obscure. The objective of the present study was to evaluate the hemodynamic response to methane. A vehicle or methane-rich saline were administered intravenously or intraperitoneally in normotensive anaesthetized rats. We have found no significant effect of the acute administration of methane-rich saline on arterial blood pressure and heart rate in anaesthetized rats. Our study suggests that methane does not influence the control of arterial blood pressure. However, further chronic studies may be needed to fully understand hemodynamic effects of the gas.
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