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The Type of Probiotic That May Reverse Depression

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The probiotic buffered the body against the damaging effects of stress.

Depression has been reversed in mice by feeding them probiotic bacteria, new research reports.

Lactobacillus is a type of ‘good’ bacteria found in yogurt, among other foods.

The role of the gut microbiome — the bacteria which live in our gut — has become a focus of research interest recently.

Dr Alban Gaultier, who led the study, said:

“The big hope for this kind of research is that we won’t need to bother with complex drugs and side effects when we can just play with the microbiome.
It would be magical just to change your diet, to change the bacteria you take, and fix your health — and your mood.”

The scientists found that when mice in the study were put under stress, the bacteria in their gut changed.

The main change was a reduction in Lactobacillus, which was linked to depressed behaviour in the mice.

Feeding them Lactobacillus almost completely stopped their depressive behaviours.

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The researchers found a mechanism for how this change in the gut led to depression (it is through a metabolite called kynurenine).

First author, Ms Ioana Marin said:

“This is the most consistent change we’ve seen across different experiments and different settings we call microbiome profiles.
This is a consistent change.
We see Lactobacillus levels correlate directly with the behavior of these mice.”

The researchers plan to continue investigating kynurenine’s role in depression, Ms Marin said:

“There has been some work in humans and quite a bit in animal models talking about how this metabolite, kynurenine, can influence behavior.
It’s something produced with inflammation that we know is connected with depression.
But the question still remains: How?
How does this molecule affect the brain?
What are the processes?
This is the road we want to take.”

The study was published in the journal Scientific Reports (Marin et al., 2017).
MARCH 15, 2017
source: PsyBlog
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One thought on “The Type of Probiotic That May Reverse Depression

  1. Pingback: How to Find the Best Quality Probiotics | The Barefoot Aya

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