Probiotics – It’s Complicated
Whereas these posts are mostly on the positive side;
- probiotics (15)
You could ask your doctor but they will know nothing, just like they know nothing about stroke recovery.
Another view. Hope you can put two and two together and see which way to go. I'm staying with probiotics, don't listen to me, I'm not medically trained.
Post-Antibiotic Gut Mucosal Microbiome Reconstitution Is Impaired by Probiotics and Improved by Autologous FMT
Highlights
- Murine gut mucosal probiotic colonization is only mildly enhanced by antibiotics
- Human gut mucosal probiotic colonization is significantly enhanced by antibiotics
- Post antibiotics, probiotics delay gut microbiome and transcriptome reconstitution
- In contrast, aFMT restores mucosal microbiome and gut transcriptome reconstitution
Summary
Probiotics
are widely prescribed for prevention of antibiotics-associated
dysbiosis and related adverse effects. However, probiotic impact on
post-antibiotic reconstitution of the gut mucosal host-microbiome niche
remains elusive. We invasively examined the effects of multi-strain
probiotics or autologous fecal microbiome transplantation (aFMT) on
post-antibiotic reconstitution of the murine and human mucosal
microbiome niche. Contrary to homeostasis, antibiotic perturbation
enhanced probiotics colonization in the human mucosa but only mildly
improved colonization in mice. Compared to spontaneous post-antibiotic
recovery, probiotics induced a markedly delayed and persistently
incomplete indigenous stool/mucosal microbiome reconstitution and host
transcriptome recovery toward homeostatic configuration, while aFMT
induced a rapid and near-complete recovery within days of
administration. In vitro, Lactobacillus-secreted
soluble factors contributed to probiotics-induced microbiome inhibition.
Collectively, potential post-antibiotic probiotic benefits may be
offset by a compromised gut mucosal recovery, highlighting a need of
developing aFMT or personalized probiotic approaches achieving mucosal
protection without compromising microbiome recolonization in the
antibiotics-perturbed host.
Graphical Abstract
Keywords
Introduction
Antibiotics have transformed medicine and the fight against common life-threatening bacterial infections (Van Boeckel et al., 2014).
However, widespread antibiotic exposure is associated with the
emergence of resistant strains and with a variety of gastrointestinal
(GI) effects, hypersensitivity, and drug-specific adverse effects, most
notably antibiotic-associated diarrhea (AAD) in 5% to 35% of treated
humans (Wiström et al., 2001,
McFarland, 1998).
Non-selective antibiotics-induced disruption of commensal microbiome
community structure (“dysbiosis”) accounts for up to 20% of all AAD
cases (Bartlett, 2002).
Such dysbiosis occurs rapidly within days, leading to altered bacterial
metabolism and impaired host proteome in mice and humans (Ferrer et al., 2014, Lichtman et al., 2016). Human microbiome reconstitution from antibiotic treatment is often slow and incomplete (Dethlefsen et al., 2008, Dethlefsen and Relman, 2011, Jernberg et al., 2007) and, in some cases, may take years to revert to naive configuration (Lankelma et al., 2017).
Of note, studies in rodent models and humans suggest an association
between antibiotic exposure, especially during early stages of life, and
a host propensity for a variety of long-term disorders (Vangay et al., 2015), including obesity (Shao et al., 2017), allergy (Risnes et al., 2011, Hoskin-Parr et al., 2013), increased risk of autoimmunity (Arvonen et al., 2015), and inflammatory bowel disease (Virta et al., 2012, Kronman et al., 2012).
Probiotics
have been proposed to constitute an effective preventive treatment for
antibiotics-induced dysbiosis and associated adverse effects in mice (Ekmekciu et al., 2017) and in some (Hempel et al., 2012) but not all human studies (Olek et al., 2017, Allen et al., 2013). Importantly, adverse effects associated with probiotics consumption may be under-reported in clinical trials (Bafeta et al., 2018),
further complicating the efficacy debate. The extent and pattern of
probiotic gut mucosal colonization and impact on the indigenous gut
microbiome following antibiotic use also remain unclear. While few
small-scale culture-based studies attempted to quantify supplemented
probiotics in the antibiotics-perturbed GI mucosa (Klarin et al., 2005),
the vast majority of studies extrapolate their conclusions from stool
samples, resulting in inconclusive findings regarding probiotics
capability to restore the pre-antibiotics microbiome configuration (McFarland, 2014). Importantly, no in vivo
studies have directly examined the global extent of human mucosal
probiotic colonization following antibiotic treatment and their impact
on reconstitution of the indigenous mucosal microbiome or the host gut
transcriptome.
Here, we explored the
impact of probiotics consumption following antibiotic exposure on the
gut luminal, mucosal, and fecal microbiome composition and function and
the GI transcriptome in mice and humans. To this aim, mice and a cohort
of human volunteers were treated with broad-spectrum antibiotics and
then either were supplemented with probiotics, underwent autologous
fecal microbiome transplantation (aFMT), or were allowed to
spontaneously recover over time. We found significant differences
between mice and humans with respect to post-antibiotic probiotics gut
mucosal colonization. Mice featured only a mild improvement in
colonization of the “human-compatible” probiotics regimen upon
antibiotic treatment as compared to homeostatic conditions, while humans
demonstrated a marked colonization improvement in this setting.
Importantly, post-antibiotic probiotic supplementation significantly
delayed the extent of reconstitution of the indigenous fecal and mucosal
microbiome (in both mice and humans) and the reversion of the gut
transcriptome toward homeostatic configuration (in humans) compared to
either spontaneous reconstitution or aFMT. In contrast, post-antibiotic
aFMT in both mice and humans achieved a rapid and near-complete gut
mucosal microbiome recolonization associated with reversion of the human
gut transcriptome toward its pre-antibiotic configuration.
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