Pesticide Exposure Damages The Mouth Microbiome

pesticide mouthBrandon Turbeville

A new study published in the journal Applied and Environmental Microbiology has demonstrated a disturbing link between pesticide exposure and the destruction of healthy bacteria of the mouth.

The study involved an examination of “oral buccal microbiota” in an agriculutural community involving 65 farm workers and 52 non-farm workers. The purpose fo teh study was to investigate whether or not pesticide exposure caused any changes in the mouth bacteria.

Of course, not all bacteria is bad including streptococcus which is actually one of the most common bacteria found in the mouth.

What was found was that not only did farm workers have a higher blood level of pesticides, they also had greater changes in mouth bacteria in individuals who did not work on farms.

As the authors of the study wrote,

We found a seasonally persistent association between the detected blood concentration of the insecticide Azinphos-methyl and the taxonomic composition of the buccal swab oral microbiome. Blood and buccal samples were collected concurrently from individual subjects in two seasons, spring/summer 2005 and winter 2006. Mass spectrometry quantified blood concentrations of the organophosphate insecticide Azinphos-methyl. Buccal oral microbiome samples were 16S rRNA gene DNA sequenced, assigned to the bacterial taxonomy and analyzed after ‘centered-log-ratio’ transformation to handle the compositional nature of the proportional abundances of bacteria per sample. Non-parametric analysis of the transformed microbiome data for individuals with and without Azinphos-methyl blood detection showed significant perturbations in seven common bacterial genera (>0.5% of sample mean read depth), including significant reductions in the common oral bacteria, Streptococcus. Diversity in ‘centered-log-ratio’ composition between individuals’ microbiomes was also investigated using principal components analysis (PCA) to reveal two primary PCA clusters of microbiome types. The spring/summer ‘exposed’ microbiome cluster with significantly less bacterial diversity was enriched for farmworkers and contained 27 of the 30 individuals who also had Azinphos-methyl agricultural pesticide exposure detected in the blood.


In addition, they wrote,

In this study we show in human subjects that organophosphate pesticide exposure is associated with large-scale significant alterations of the oral buccal microbiota composition with extinctions of whole genera suggested in some individuals. Persistence from the spring/summer to the winter of this association also suggests long lasting effects on the on March 6, 2017 by guest http://aem.asm.org/ Downloaded from 3 commensal microbiota have occurred.

The study did not, however, look into how the changes in the bacteria of the mouth affects overall health.

However, it is known that changing the number and type of bacteria of the mouth can lead to oral health issues.

There’s also evidence that chronic periodontal infections can be associated with an increased risk for cardiovascular disease. This is important because chronic periodontal infections and oral bacteria affect the immune system as a whole.

Regardless, this new research shows the danger of pesticide exposure, not only for farmers but consumers purchasing food doused with those chemicals.

H/T: NYR Natural News


Image: by Natural Blaze via pixabay and London.Japanes.Knotweed UK clipart


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Brandon Turbevillearticle archive here – is an author out of Florence, South Carolina. He is the author of six books, Codex Alimentarius — The End of Health Freedom, 7 Real Conspiracies,Five Sense Solutions and Dispatches From a Dissident, volume 1 and volume 2, The Road to Damascus: The Anglo-American Assault on Syria,and The Difference it Makes: 36 Reasons Why Hillary Clinton Should Never Be President. Turbeville has published over 1,000 articles dealing on a wide variety of subjects including health, economics, government corruption, and civil liberties. Brandon Turbeville’s podcast Truth on The Tracks can be found every Monday night 9 pm EST at UCYTV. He is available for radio and TV interviews. Please contact activistpost (at) gmail.com.

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  • diogenes

    A friend of mine was a teacher at a school in Watsonville, CA, that was located next to agricultural fields that were using a deadly pesticide in an unsafe manner so that it was drifting over the school ground so my friend sent a letter home to the parents informing them and — guess what? you’ll never ever guess! — the school fired her.

    This is Amerikkka. Take your poison and shut up.

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    • ron davison

      Did she get samples and submit them or have some proof of what was sprayed?
      If not, technically she is wrong and can be fired for cause. Did not say it was fair.
      It is frustrating if you do not know who to call to help find this out.

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  • ron davison

    I don’t know if it should be recommended to put this in the drinking water supply at hospitals, ban it from being used as an insecticide, or both.
    But at least one of the three has to be correct by default.