Links between Serotonin Levels and Stress: Cortisol, Candida A./Mycetes, Omega 3/6 Ratio and Dysbiosis.., Role in (CFS) and Depression

Discussion in 'ME/CFS research' started by Sly Saint, Sep 6, 2023.

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  1. Sly Saint

    Sly Saint Senior Member (Voting Rights)

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    Links between Serotonin Levels and Stress: Cortisol, Candida A./Mycetes, Omega 3/6 Ratio and Dysbiosis (Skatole/Indoxyl Sulfate) Role in Chronic Fatigue Syndrome (CFS) and Depression

    Orlandoni et al

    Abstract


    Intestinal microbiota attracts daily attention of a growing number of study which have attempted to link gut dysbiosIs with a variety of disease states: irritable bowel syndrome (IBS), inflamed bowel disease (IBD), Crohn's disease (CD), leaky gut syndrome (LGS), food intolerance, diabetes, metabolic syndrome, cancer, etc.. In our study we analyzed how intestinal dysbiosis may be related to chronic fatigue syndrome (CFS) and depression through the exchange of information through the gut-brain axis (GBA).

    We studied 33 subjects, 13 males and 20 females, who reported CFS or/and depression: we investigated their salivary cortisol levels, blood serotonin, omega 3/6 ratio, intestinal dysbiosis (calculated on the urinary levels of indoxyl sulfate and skatole), and we looked for the presence of Candida a. or mycetes in the stool; the data accumulated with this research show a correlation between the presence of Candida a./miceti, indoxyl sulfate urine values beyond the physiological and low serotonin levels. In addition, data analysis showed that the EPA/DHA values also show pro-inflammatory levels in case of dysbiosis and low serotonina levels.

    The relationship, however, with cortisol levels requires further research although this study showed a statistically significant positive correlation between these values, measured at specific times, and serotonin levels.

    Aims its connections with

    We investigated the relationship between stress (evaluated through the measurement of salivary cortisol levels) and gastrointestinal efficiency measured as a function of intestinal fermentative and putrefactive dysbiosis, evaluating the levels of urinary indoxyl sulfate in the first case (a possible correlation with the presence of Candida spp or Mycetes in the subjects feces was investigated), urinary skatole levels in the second one, in patients with chronic fatigue syndrome (SFC) and depression.

    In these patients we also have studied omega 3/6 ratio, and finally we have analized the impact that the alteration of these parameters can have on the serotonin levels. This research attemps to highlight the contact points, in some cases not so obvious, among these topics, contact points that, although they give us interesting indications, show the need to be further deepened by analyzing a larger amount of data.


    https://www.preprints.org/manuscript/202309.0253/v1
     
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  2. Hutan

    Hutan Moderator Staff Member

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    I'm assuming this means they found nothing much? Not feeling enthusiastic to spend time on this paper.
     
  3. Trish

    Trish Moderator Staff Member

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    I had a quick look at the PDF.

    There's 14 pages of information and diagrams about all the different substances tested, all derived from other sources, before you get to the methods and results.

    The definition of CFS seems to be brain fog and intestinal dysbiosis, I didn't come across any info on how many actually had what they called CFS and how many had depression.

    On page 15 they say a bit more about the patients - all had similar picture including "low mood, abdominal swelling, fatigue, sleep disorders, anxiety and weight gain".

    There's a daft diagram showing levels of correlation between about 15 chemicals including every pairing duplicated and a diagonal line of large dots showing a correlation of 1 between each chemical and itself.

    There seemed to be some correlations found, but I confess I gave up at that stage.
     
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  4. rvallee

    rvallee Senior Member (Voting Rights)

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    This sure is a choice. A terrible one, a common one, but it is a choice of some sort nonetheless.

    It's ironic that the BPS model has given prominence to this kind of extremely reductive nonsense associating high level behavior to a single molecule. How "holistic". Same with dopamine being associated with happiness, even though dopamine does a ton of other stuff. I get seriously annoyed every time someone talks about a "dopamine hit". This is astrology-level nonsense.

    There really is a pressing need to bridge the small scale biological knowledge that makes up medical training with high level systems and outcomes, but this definitely is not it. Political science is more advanced than this. And less dogmatic. No kidding.
     
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