Pyrroloquinoline quinone for CFS?

A reader starting taking this and their two earlier uBiomes had zero lactobacillus and zero bifidobacterium.  Both of these bacteria genus appear at low level afterwards (an improvement of both microbiome and general state).

Pyrroloquinoline quinone (PQQ), an aromatic tricyclic o-quinone, was identified initially as a redox cofactor for bacterial dehydrogenases. Although PQQ is not biosynthesized in mammals, trace amounts of PQQ have been found in human and rat tissues because of its wide distribution in dietary sources. Importantly, nutritional studies in rodents have revealed that PQQ deficiency exhibits diverse systemic responses, including growth impairment, immune dysfunction, and abnormal reproductive performance. Although PQQ is not currently classified as a vitamin, PQQ has been implicated as an important nutrient in mammals. In recent years, PQQ has been receiving much attention owing to its physiological importance and pharmacological effects.” [2015]

” PQQ supplementation resulted in significant decreases in the levels of plasma C-reactive protein, IL-6 and urinary methylated amines such as trimethylamine N-oxide, and changes in urinary metabolites consistent with enhanced mitochondria-related functions. ” [2013]

PubMed Literature

Informal Comments

One discussion group:

  1. THUMBS UP: “DID yield decent enough beneficial therapeutic effects; and DID NOT EXPERIENCE intolerable side effects; and IS WORTH the cost” (71 votes [61.74%] – View)
  2. THUMBS DOWN: “DID NOT yield decent enough beneficial therapeutic effects; and/or EXPERIENCED intolerable side effects; and/or IS NOT WORTH the cost” (44 votes [38.26%] – View)
  • “I have FMS/CFS and started taking PQQ recently and it has made a huge difference in my mental health as well as fatigue. Nothing has ever made any difference to the crippling fatigue I experience day in day out, so I was so happy to have come across this. I also started taking ubiquinol (Coq10 did nothing for fatigue) which also has the same effect as the PQQ (or maybe it is boosting what the PQQ has regenerated?) but sometimes when I take them together I become really angry and can end up in an uncontrollable rage. B12 also does this to me so maybe it is a methylation issue.” [Src]
  • I take it at Klimas’ suggestion. IIRC, she said I should get my CoQ-10 levels up before adding PQQ for the best effect. PQQ supposedly helps us generate more mitochondria, but I guess if you don’t have enough CoQ-10 for the mitochondria you already have to work properly, how smart is it to try to grow new mitochondria that also wouldn’t be able to function properly? [Src]

    This study found that PQQ helped fatigue, tension-anxiety, depression, anger-hostility and confusion, appetite, sleep, obsession and pain, with the full effect appearing after 8 weeks supplementing daily with 20 mg of PQQ. [Src]

Bottom Line

The documented neuroprotective aspects of PQQ makes it an attractive supplement for CFS. There is an absence of studies on the microbiome or studies with CFS/IBS/FM.

There is no supporting evidence that it increases Lactobacillus or Bifidobacterium, nor evidence of adverse effect.