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http://saypeople.com/2013/11/07/microbes-can-help-in-improving-your-social-life-some-related-research-suggestions/#.UnvHC3dYE2k
The original abstract here;
Microbial Symbionts Accelerate Wound Healing via the Neuropeptide Hormone Oxytocin
Abstract
Wound healing capability is inextricably linked with diverse aspects of physical fitness ranging from recovery after minor injuries and surgery to diabetes and some types of cancer. Impact of the microbiome upon the mammalian wound healing process is poorly understood. We discover that supplementing the gut microbiome with lactic acid microbes in drinking water accelerates the wound-healing process to occur in half the time required for matched control animals. Further, we find that Lactobacillus reuteri enhances wound-healing properties through up-regulation of the neuropeptide hormone oxytocin, a factor integral in social bonding and reproduction, by a vagus nerve-mediated pathway. Bacteria-triggered oxytocin serves to activate host CD4+Foxp3+CD25+ immune T regulatory cells conveying transplantable wound healing capacity to naive Rag2-deficient animals. This study determined oxytocin to be a novel component of a multi-directional gut microbe-brain-immune axis, with wound-healing capability as a previously unrecognized output of this axis. We also provide experimental evidence to support long-standing medical traditions associating diet, social practices, and the immune system with efficient recovery after injury, sustained good health, and longevity.Citation: Poutahidis T, Kearney SM, Levkovich T, Qi P, Varian BJ, et al. (2013) Microbial Symbionts Accelerate Wound Healing via the Neuropeptide Hormone Oxytocin. PLoS ONE 8(10): e78898. doi:10.1371/journal.pone.0078898
Editor: Silvana Gaetani, Sapienza University of Rome, Italy
Received: April 3, 2013; Accepted: September 17, 2013; Published: October 30, 2013
Copyright: © 2013 Poutahidis et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Funding: This work was supported by National Institutes of Health grants P30-ES002109 (pilot project award to SEE and EJA), U01 CA164337 (to SEE and EJA), and RO1CA108854 (to SEE). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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