Deans' stroke musings

Changing stroke rehab and research worldwide now.Time is Brain!Just think of all the trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 493 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It's quite disgusting that this information is not available from every stroke association and doctors group.
My back ground story is here:http://oc1dean.blogspot.com/2010/11/my-background-story_8.html

Friday, April 14, 2017

UVA Reverses Depression Symptoms in Mice Using Probiotics

But is treating depression and getting better stroke recovery at the same time a better reason to use SSRIs?

Common antidepressant can help stroke patients improve movement and coordination Sept. 2015 

Antidepressants may help people recover from stroke even if they are not depressed Jan. 2013


UVA Reverses Depression Symptoms in Mice Using Probiotics


Researchers at the University of Virginia School of Medicine have reversed depression symptoms in mice by feeding them Lactobacillus, a probiotic bacteria found in live-cultures yogurt. Further, they have discovered a specific mechanism for how the bacteria affect mood, providing a direct link between the health of the gut microbiome and mental health.
Based on their findings, the researchers are optimistic that their discovery will hold true in people and are planning to confirm their findings in patients with depression.
“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,” lead researcher Alban Gaultier said. “It would be magical just to change your diet, to change the bacteria you take, and fix your health – and your mood.”

Treating Depression

Depression is one of the most common mental health conditions in the United States, with up to 7 percent of people experiencing a major depressive episode, Gaultier noted. “It’s a huge problem and the treatments are not very good, because they come with huge side-effects,” he said.
The role of the gut microbiome – the bacteria that live inside us – has been of tremendous interest to researchers studying depression and other health conditions, both mental and physical. Gaultier, of the UVA Department of Neuroscience and its Center for Brain Immunology and Glia, set out to see if he could find a concrete link between depression and gut health.
“When you’re stressed, you increase your chance of being depressed, and that’s been known for a long, long time,” he said. “So the question that we wanted to ask is, does the microbiome participate in depression?”
The answer appears to be yes. Looking at the composition of the gut microbiome before and after mice were subjected to stress, Gaultier’s team found that the major change was the loss of Lactobacillus. With the loss of Lactobacillus came the onset of depression symptoms. Feeding the mice Lactobacillus with their food returned them to almost normal. “A single strain of Lactobacillus,” Gaultier observed, “is able to influence mood.”
He and his team then went on to determine the mechanism by which Lactobacillus influences depression. They found that the amount of Lactobacillus in the gut affects the level of a metabolite in the blood called kynurenine, which has been shown to drive depression. When Lactobacillus was diminished in the gut, the levels of kynurenine went up – and depression symptoms set in.
“This is the most consistent change we’ve seen across different experiments and different settings we call microbiome profiles,” explained researcher Ioana Marin, a graduate student who is finishing her Ph.D. work. “This is a consistent change. We see Lactobacillus levels correlate directly with the behavior of these mice.”

Testing in Humans

Gaultier was careful to call the symptoms seen in mice as “depressive-like behavior” or “despair behavior,” as mice have no way to communicate that they are feeling depressed. But those symptoms are widely accepted as the best available model for looking at depression in creatures other than humans.
Based on the new findings, Gaultier plans to begin studying the effect in people as soon as possible. He intends to examine the effects of Lactobacillus on depression in patients with multiple sclerosis, a group in which the disorder is common. Promisingly, the same biological substances and mechanisms Lactobacillus uses to affect mood in mice are also seen in humans, suggesting the effect may be the same.
In addition to looking at the effects in people, the researchers are continuing to explore the important role of kynurenine.
“There has been some work in humans and quite a bit in animal models talking about how this metabolite, kynurenine, can influence behavior,” Marin said. “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.”

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From left: Ioana Marin, Jennifer Goertz and Alban Gaultier (Contributed photo)
While there is no harm in people with depression eating yogurt – assuming they have no reasons to avoid dairy – people receiving treatment for depression should not stop taking their medications without consulting their physicians. More studies, the researchers noted, are needed.
(For more on this discovery, including answers to questions such as whether the strain of Lactobacillus influences its effect on depression, visit the UVA School of Medicine’s research blog, the Making of Medicine.)

Findings Published

The findings have been published online by the scientific journal Scientific Reports. This interdisciplinary study is the product of a collaboration among several laboratories and centers at UVA. The article is the work of Marin, Jennifer E. Goertz, Tiantian Ren, Stephen S. Rich, Suna Onengut-Gumuscu, Emily Farber, Martin Wu, Christopher C Overall, Jonathan Kipnis and Gaultier.
The research was made possible by an initial seed grant from UVA’s Office of the Vice President for Research. The work then received financial support from the National Multiple Sclerosis Society and the National Institutes of Health’s National Institute of Mental Health, grant R21 MH108156.

Media Contact

UVA Health System


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