Anxious? Your gut bacteria may be to blame: Study - Social Anxiety Forum
 
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post #1 of 3 (permalink) Old 08-26-2017, 02:06 PM Thread Starter
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Anxious? Your gut bacteria may be to blame: Study


Anxious? Your gut bacteria may be to blame: Study shows clear link between genes that regulate emotions and microbiota in the intestines

*A study clearly shows that bacteria in the gut can play a major role in anxiety

*Scientists discovered that certain gene regulators play a key role in anxiety-type illness and are impacted by bacteria levels in the gut

*This new research comes at a time of growing interest in how gut health impacts mental health


http://www.dailymail.co.uk/health/ar...ria-blame.html

People who suffer from anxiety may take antidepressants or another medicine to treat their brain.

But a new study suggests gut bacteria actually plays a major role in anxious feelings.

This study is one in a growing body of data on gut bacteria and physical and mental health.

Pharmaceutical and wellness companies have noticed, and have been marketing probiotics said to improve general physical and mental health for years already, as we reported in January of 2014.

It's unclear, though, if the gut is influencing the brain and its development, or if the brain is influencing the gut.

Researchers warn that it is hard to draw conclusions at this point, as this is still a young field of research and most of the large-scale studies are ongoing.

Other research has tried to establish a connection between 'microbial communities,' or microbiotic profiles and geography.

But a 2016 Brown University study found that that there was no consistent profile once a wide sample was taken, and the prevalence of Bacteroides over Prevotella or visa versa was probably determined more by diet, lifestyle and health than it was by location.

The study reexamined the division of Western and non-Western gut bacteria profiles, but its conclusions suggested that digestive flora are determined by nurture than by nature.

Researchers found that the microRNAs (miRNAs) changed in the brains of microbe-free mice who were reared in a germ-free bubble.

Those mice displayed abnormal anxiety, deficits in sociability and cognition, and depressive-like behaviours.

Gut microbes appear to influence miRNAs in two specific parts of the brain - the amygdala, which is commonly associated with experiencing emotions, and the prefrontal cortex, which plays a role in personality development.

'This is important because these miRNAs may affect physiological processes that are fundamental to the functioning of the central nervous system and in brain regions, such as the amygdala and prefrontal cortex, which are heavily implicated in anxiety and depression' Dr Gerard Clarke, one of the study's corresponding authors, explained.

miRNAs are a short sequence of nucleotides - which are the building blocks of DNA and RNA - that control how genes are expressed.

When they don't function properly, it's thought miRNAs contribute significantly to stress-related psychiatric disorders, neurodegenerative diseases and neurodevelopmental abnormalities.

So changes in how certain genes are expressed in the brain are caused by miRNAs and can be linked to anxiety-like behaviors.

'It may be possible to modulate miRNAs in the brain for the treatment of psychiatric disorders but research in this area has faced several challenges, for example, finding safe and biologically stable compounds that are able to cross the blood-brain barrier and then act at the desired location in the brain,' Dr Clarke said.

'Our study suggests that some of the hurdles that stand in the way of exploiting the therapeutic potential of miRNAs could be cleared by instead targeting the gut microbiome.'

The gut microbiome refers to the population of bacteria and other microbes in the intestine that is unique to each person.

The team of scientists looked at the interplay of gut bacteria and the miRNA level in the amygdala and prefrontal cortex of a group of 12 mice.

Specifically they looked at 103 miRNAs in the amygdala and 31 in the prefrontal cortex in one group raised with no gut bacteria, who were reared in a kind of 'bubble.' Their levels of miRNAs were compared against a group of mice brought up conventionally.

The researchers used next-generation-sequencing to analyse which miRNAs were present in the prefrontal cortex and amygdala in each group of mice.

They found that depleting the microbiota of adult mice with antibiotics in both groups impacted the miRNAs in the same way, which suggests that even if there is healthy bacteria present throughout an individual's life changes during adulthood can cause anxiety-like behaviours.

Alternatively, they also found that adding gut bacteria later in life normalised some of those pre-examined changes.

The findings suggest that a healthy balance of gut bacteria is necessary for appropriate regulation of miRNAS, which

Previous research has demonstrated that some manipulation of the balance of bacteria in the gut can impact anxiety-like behaviors, but this study is the first that links that balance to miRNAs in the amygdala and prefrontal cortex.

The authors note that the exact mechanism by which the gut microbiota is able to influence the miRNAs in the brain remains unclear.

Further research into the possible connection between gut bacteria, miRNAs and anxiety-like behaviors is needed before the findings can be translated to a clinical setting.

Dr Clarke said: 'This is early stage research but the possibility of achieving the desired impact on miRNAs in specific brain regions by targeting the gut microbiota -- for example by using psychobiotics -- is an appealing prospect.'

A team of scientists discovered that certain gene regulators in the brain - called microRNAs - play a key roll in anxiety-type illness and behaviour and are affected by bacteria levels in the gut.

This study, done by the University of Cork, is one in a growing body of data on gut bacteria and physical and mental health.

Pharmaceutical and wellness companies have noticed, and have been marketing probiotics said to improve general physical and mental health for years already, as we reported in January of 2014.

It's unclear, though, if the gut is influencing the brain and its development, or if the brain is influencing the gut.

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post #2 of 3 (permalink) Old 09-04-2017, 12:14 AM
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Hello Cletis,
At some extent you're right and I really appreciate your effort to explain everything in the nutshell. I am clinical tester at BioHealth and I have read many case studies on bacteria. If you ask me to make your post or explain your post in few words then my simple reply would be "whatever our body's face ups and downs. It all about hormones and bacteria in guts'. As all knows what we eat it affects our body then how could anxiety won't be a part of bacteria in guts. AS WHAT WE EAT, IT GOES THROUGH THE BODY THEN YOU GRADUALLY FACE THE AFFECT OF IT. Similarly, anxiety is also an emotion which is caused by our body. In your case, this is not only the case of bacteria in guts but it is also the case of psychological thinking as I have also suffered from the same thing. I shifted from that place and leave things there so further it will not affect me anymore. Still I want to share a link wherein I often publish blogs on intestinal bacteria. You can go here -https://biohealthlab.wordpress.com/2017/09/04/what-do-you-know-about-bacteria-in-your-guts/, if you want to read.

Thanks!

BioHealth Laboratory is the Health Diagnostic Laboratory licensed by COLA and Federal government. BioHealth’s passionate and well-versed clinical team have competency to give accurate and efficient results. BioHealth testing specialties are GI Screen, SIBO Breath Test, saliva tests, female hormone tests, male hormone test, HPA Stress Profiles, Secretory IgA levels etc.
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post #3 of 3 (permalink) Old 09-04-2017, 12:34 AM
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Originally Posted by biohealth View Post
Similarly, anxiety is also an emotion which is caused by our body. In your case, this is not only the case of bacteria in guts but it is also the case of psychological thinking as I have also suffered from the same thing.

Thanks!
Yes, I think there is a whole host of thing thats contribute to ones mental well being as I remember trying the gut bacteria route a good while ago and it didn't do anything for anxiety

As they say - Different Strokes (what you talkin bout Willis)
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