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  1. Michael Harrop

    Article HHS Secretary Robert F. Kennedy Jr. calls for a “moonshot” targeted on the role of the microbiome in cancer (May 2026)

    https://cancerletter.com/the-cancer-letter/20260522_1/ https://www.hhs.gov/press-room/secretary-kennedy-take-back-your-health-tour-ca.html Interesting, but merely a continuation of what's already been happening, which isn't good.
  2. Michael Harrop

    Parasites An anti-parasitic medication (ivermectin) shifted Amazonian villagers’ microbiomes toward an urban profile (May 2026, n=335) Rapid microbiome restructuring associated with medical exposure in remote Amazonian Indigenous communities

    https://www.the-scientist.com/medical-interventions-rapidly-change-isolated-indigenous-microbiomes-74501 https://medicalxpress.com/news/2026-05-modern-medicine-gut-microbial-diversity.html https://www.cell.com/cell-reports/fulltext/S2211-1247(26)00421-3
  3. Michael Harrop

    Origins Vaginal bacteria on newborn skin produce a lipid that reaches the brain and affects neural signaling (Apr 2026) Vaginal microbiota transfer ameliorates cesarean-associated neurodevelopmental deficits in mice via N-bc2S1P synthesis on neonatal skin

    https://www.science.org/content/article/vaginal-bacteria-turn-newborn-skin-beneficial-bioreactor https://www.sciencedirect.com/science/article/abs/pii/S1931312826001319 I tagged it as "origins" because it deals with vaginal seeding. I've thought that vaginal seeding (smearing vaginal microbes...
  4. Michael Harrop

    Other Scientists identify bacterial glycogen as a gut trigger behind ALS and dementia (Jan 2026) C9orf72 in myeloid cells prevents an inflammatory response to microbial glycogen

    https://www.sciencedaily.com/releases/2026/04/260408225944.htm https://www.cell.com/cell-reports/fulltext/S2211-1247(25)01678-X
  5. Michael Harrop

    FVT Fecal virome transplantation attenuates arthritis in mice by remodeling gut ecology, systemic tryptophan metabolism, and innate immune responses (Apr 2026)

    https://www.nature.com/articles/s41522-026-00980-2
  6. Michael Harrop

    Other Bacteria are weaving forever chemicals directly into their cell membranes (Mar 2026) Bacteria covalently incorporate polyfluoroalkyl carboxylates into membrane lipids

    https://phys.org/news/2026-04-bacteria-chemicals-cell-membranes.html https://www.nature.com/articles/s41564-026-02301-x
  7. Michael Harrop

    Diet Stools suggest why Papua New Guineans on low-protein diet are muscular. Excreta-related research at the University of Tokyo (Apr 2026)

    https://www.u-tokyo.ac.jp/focus/en/features/z1304_00300.html
  8. Michael Harrop

    Vagina Vaginal microbiota transplantation for treatment of vaginal dysbiosis without the use of antibiotics: a double-blind, randomised controlled trial in women with vaginal dysbiosis (Mar 2026, n=49) "VMT without antibiotics did not significantly improve microbiome conversion in this trial"

    https://www.thelancet.com/journals/lanmic/article/PIIS2666-5247(25)00222-8/fulltext
  9. Michael Harrop

    FMT Faecal microbiota transplant for chronic norovirus infection: a case report of donor microbiota engraftment without clinical success (Mar 2026)

    https://academic.oup.com/gastro/article/doi/10.1093/gastro/goag015/8512970
  10. Michael Harrop

    FMT Her son needed a fecal transplant for a fearsome C. diff infection. Getting one required a tortuous journey. Stricter FDA stool bank rules made the treatment harder to find (Mar 2026)

    https://www.statnews.com/2026/03/23/c-diff-fda-drug-approval-access-paradox-fecal-transplants/
  11. Michael Harrop

    FMT Faecal Microbiota Transplantation Improves Outcomes in Depression (Mar 2026, n=46) A study on the efficacy and safety of fecal microbiota transplantation as an adjunctive therapy for treating depressive episodes

    https://www.emjreviews.com/neurology/news/faecal-microbiota-transplantation-improves-outcomes-in-depression/ https://www.nature.com/articles/s41598-026-41801-y
  12. Michael Harrop

    FMT Gut microbiota modulation via repeated donor fecal transplantation improves motor and gastrointestinal symptoms in drug-naïve Parkinson’s disease: a randomized phase 2 trial (Mar 2026, n=72)

    https://www.nature.com/articles/s41392-026-02604-9
  13. Michael Harrop

    Aging Scientists Tried to Age Young Ovaries with Old Microbes but Accidentally Made Them More Fertile (Mar 2026) Estropausal gut microbiota transplant improves measures of ovarian function in adult mice

    https://www.zmescience.com/ecology/animals-ecology/young-ovaries-old-microbes/ https://www.nature.com/articles/s43587-026-01069-3
  14. Michael Harrop

    Causation Memory loss is fuelled by gut microbes in ageing mice (Mar 2026) Intestinal interoceptive dysfunction drives age-associated cognitive decline

    https://www.nature.com/articles/d41586-026-00768-6 https://www.nature.com/articles/s41586-026-10191-6
  15. Michael Harrop

    Antibiotics A single course of antibiotics can leave a lasting mark on the gut microbiome (Mar 2026) Antibiotic use and gut microbiome composition links from individual-level prescription data of 14,979 individuals

    https://www.scientificamerican.com/article/a-single-course-of-antibiotics-may-reshape-the-gut-microbiome-for-years/ https://www.nature.com/articles/s41591-026-04284-y
  16. Michael Harrop

    Causation Specific gut bacteria species linked to muscle strength (Mar 2026) Roseburia inulinivorans increases muscle strength

    https://medicalxpress.com/news/2026-03-specific-gut-bacteria-species-linked.html https://gut.bmj.com/content/early/2026/03/03/gutjnl-2025-336980
  17. Michael Harrop

    FMT Why some gut microbes persist after fecal transplants (Feb 2026) Temporal dynamics of gut biosynthetic gene clusters link persistent colonization and engraftment in fecal microbiota transplantation

    https://medicalxpress.com/news/2026-03-stay-stray-gut-microbes-persist.html https://www.tandfonline.com/doi/full/10.1080/19490976.2026.2634469
  18. Michael Harrop

    Phages A virus hiding inside bacteria may help explain colorectal cancer (Feb 2026, n=877) Distinct prophage infections in colorectal cancer-associated Bacteroides fragilis

    https://theconversation.com/a-virus-hiding-inside-bacteria-may-help-explain-colorectal-cancer-276695 https://www.nature.com/articles/s43856-026-01403-1
  19. Michael Harrop

    Other Sleep disruption damages gut's self-repair ability via stress signals from brain (Feb 2026) Sleep disturbance triggers aberrant activation of vagus circuitry and induces intestinal stem cell dysfunction

    https://news.uci.edu/2026/02/05/sleep-disruption-damages-guts-self-repair-ability-via-stress-signals-from-brain/ https://www.cell.com/cell-stem-cell/fulltext/S1934-5909(26)00025-1
  20. Michael Harrop

    Other Hidden biological signals in the gut point to Alzheimer’s as a whole-body disorder (Jan 2026) Gut proteome and microbiome alterations: Analysis of transverse colon samples from pathologically confirmed Alzheimer's disease patients

    https://news.asu.edu/20260116-science-and-technology-roots-alzheimers-disease-extend-beyond-brain https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/alz.71021Abstract
  21. Michael Harrop

    Testing Gut health index measures microbial interactions to track disease (Feb 2026) Imbalance in gut microbial interactions as a marker of health and disease

    https://medicalxpress.com/news/2026-02-gut-health-index-microbial-interactions.html https://www.eurekalert.org/news-releases/1117082 https://www.npr.org/2026/02/27/nx-s1-5724876/scientists-find-a-new-clue-to-help-them-identify-a-healthy-gut-microbiome...
  22. Michael Harrop

    Antibiotics Antibiotic-induced gut microbiome remodeling reduces neuroinflammation in traumatic brain injury (Feb 2026, mice)

    https://neurosciencenews.com/microbiome-tbi-brain-neuroinflammation-30201/ https://www.eurekalert.org/news-releases/1117939 https://www.nature.com/articles/s42003-026-09737-1
  23. Michael Harrop

    Testing Same Poop, Different Results: At-Home Gut Health Tests Are Wildly Inconsistent (Feb 2026) Evaluating the analytical performance of direct-to-consumer gut microbiome testing services

    https://gizmodo.com/same-poop-different-results-at-home-gut-health-tests-are-wildly-inconsistent-study-finds-2000726793 https://www.scientificamerican.com/article/at-home-microbiome-tests-reveal-dramatically-different-results/...
  24. Michael Harrop

    Genetics New Study Links Gut Makeup to Celiac Disease Pathogenesis (Feb 2026, n=12,652) The HUNT study identifies host genetic factors reproducibly associated with human gut microbiota composition

    https://www.medcentral.com/gastroenterology/new-study-links-gut-makeup-to-celiac-disease-pathogenesis https://www.nature.com/articles/s41588-026-02502-4
  25. Michael Harrop

    Testing A group of unculturable bacteria (CAG-170) have been found in higher numbers in the gut microbiomes of healthy people (Feb 2026) Meta-analysis of the uncultured gut microbiome across 11,115 global metagenomes reveals a candidate signature of health

    https://medicalxpress.com/news/2026-02-overlooked-group-gut-bacteria-key.html https://www.cell.com/cell-host-microbe/fulltext/S1931-3128(26)00038-7
  26. Michael Harrop

    Other Gut Bacteria Can Inject Proteins Into Human Cells (Jan 2026) Effector–host interactome map links type III secretion systems in healthy gut microbiomes to immune modulation

    https://scitechdaily.com/scientists-discover-gut-bacteria-can-inject-proteins-into-human-cells/ https://www.nature.com/articles/s41564-025-02241-y
  27. Michael Harrop

    Other Scientists discover protein that could heal leaky gut and ease depression (Sep 2025, rats) An Intravenous Injection of Reelin Rescues Endogenous Reelin Expression and Epithelial Cell Apoptosis in the Small Intestine Following Chronic Stress

    https://www.sciencedaily.com/releases/2026/02/260201231240.htm https://journals.sagepub.com/doi/10.1177/24705470251381456
  28. Michael Harrop

    FMT Fecal transplant capsules show promising results in clinical trials for multiple types of cancer (Jan 2026, n=20) Fecal microbiota transplantation plus immunotherapy in metastatic renal cell carcinoma: the phase 1 PERFORM trial

    https://medicalxpress.com/news/2026-01-fecal-transplant-capsules-results-clinical.html https://www.nature.com/articles/s41591-025-04183-8 The article also covers this study: Fecal microbiota transplantation plus immunotherapy in non-small cell lung cancer and melanoma: the phase 2...
  29. Michael Harrop

    FMT Evaluation of the efficacy of inactivated fecal transplants against Clostridioides difficile: an in vitro study (Jan 2026) "Inhibition of CD growth was observed exclusively in samples containing live bacteria"

    https://link.springer.com/article/10.1007/s11274-025-04767-z Another study showing live bacteria are required for therapeutic effect.
  30. Michael Harrop

    FMT Fecal microbiota transplantation plus immunotherapy in non-small cell lung cancer and melanoma: the phase 2 FMT-LUMINate trial (Jan 2026, n=40) "results suggest that the elimination of deleterious taxa is required for FMT-mediated therapeutic benefit"

    https://www.nature.com/articles/s41591-025-04186-5
  31. Michael Harrop

    FMT Mechanistic insights into FMT for the treatment of ulcerative colitis: analysis of the STOP-Colitis trial (Jan 2026, n=30) "Colonic FMT was superior to nasogastric delivery - 75% clinical response vs 25%"

    https://academic.oup.com/ecco-jcc/advance-article/doi/10.1093/ecco-jcc/jjag006/8441229 Not much info on the donors, so it seems to be the standard/poor criteria.
  32. Michael Harrop

    FMT Replacing microbiota makes aging intestines young again (Jan 2026) Microbiota from young mice restore the function of aged ISCs

    https://www.eurekalert.org/news-releases/1113710 https://www.cell.com/stem-cell-reports/fulltext/S2213-6711(25)00392-3
  33. Michael Harrop

    Review Environmental pollutants and the gut microbiota: mechanistic links from exposure to systemic disease (Jan 2026) "Increasing evidence reveals that the gut microbiota serves as a central mediator of pollutant-induced physiological dysfunctions"

    https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2026.1737229/full
  34. Michael Harrop

    Oral Microbes living in our mouths could hold the key to obesity prevention (Jan 2026, n=628) Integrative multi-omics analysis reveals oral microbiome-metabolome signatures of obesity

    https://medicalxpress.com/news/2026-01-microbes-mouths-key-obesity.html https://www.cell.com/cell-reports/fulltext/S2211-1247(25)01591-8 This appears to be correlation only. So it doesn't conflict with prior evidence indicating the gut microbiome is the crux that influences the oral microbiome...
  35. Michael Harrop

    Other Exhaled Breath Carries Disease-associated Bacteria from Gut (Jan 2026, n=41) The gut microbiota shapes the human and murine breath volatilome

    https://respiratory-therapy.com/disorders-diseases/infectious-diseases/other-infections/exhaled-breath-carries-disease-associated-bacteria-from-gut/ https://www.cell.com/cell-metabolism/fulltext/S1550-4131(25)00544-3
  36. Michael Harrop

    FMT Washed microbiota transplantation relieves atopic dermatitis via gut–skin microbiome rebalancing (Jan 2026, n=23)

    https://www.hmpgloballearningnetwork.com/site/thederm/news/washed-microbiota-transplantation-improves-disease-severity-and-microbial https://link.springer.com/article/10.1186/s12866-026-04717-1
  37. Michael Harrop

    Antibiotics The aggressive use of antibiotics could fuel mood disorders and anxiety (Dec 2025, n=175) Consistent decline of acetylcholine in microbiota-gut-brain axis mediates antibiotic-induced anxiety via regulating hippocampus microglial activation

    https://medicalxpress.com/news/2026-01-aggressive-antibiotics-fuel-mood-disorders.html https://www.nature.com/articles/s41380-025-03431-0
  38. Michael Harrop

    Early development The maternal microbiome influence on pregnancy success: breeding comparison of germ-free and conventionalized mice (Jan 2026) "We observed unexpectedly high maternal and offspring mortality in GF animals. Maternal microbiota might influence offspring health far earlier than previously recognized"

    https://www.tandfonline.com/doi/full/10.1080/19490976.2025.2609405
  39. Michael Harrop

    FMT A man with auto-brewery syndrome gets relief from faecal transplant (Jan 2026, n=22) Gut microbial ethanol metabolism contributes to auto-brewery syndrome in an observational cohort

    https://www.newscientist.com/article/2510789-man-whose-gut-made-its-own-alcohol-gets-relief-from-faecal-transplant/ https://www.nature.com/articles/s41564-025-02225-y
  40. Michael Harrop

    Other The secret to human intelligence? It might be in our gut. Your gut microbes may have helped build the human brain—and could still be shaping how it works today (Jan 2026) Primate gut microbiota induce evolutionarily salient changes in mouse neurodevelopment

    https://www.sciencedaily.com/releases/2026/01/260105165806.htm https://scitechdaily.com/your-gut-microbes-may-be-quietly-transforming-how-your-brain-works/ https://www.pnas.org/doi/10.1073/pnas.2426232122
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