Gut Brain Evidence

Mehanizam

Šta je zapravo osovina crijeva i mozga

Pravi komunikacijski sistem, opsežno karakteriziran kod glodavaca, a mnogo manje utvrđen kod ljudi kojima se prodaje.

Ažurirano 2 min čitanja 30 citati Snaga dokaza 3/5

Elektronska mikrografija Clostridioides difficile bakterija iz uzorka stolice
C. difficile se prekomjerno razmnožava kada antibiotici uklone konkurentnu crijevnu floru. Unknown · Public domain · Wikimedia Commons

Putevi

Kako crijeva komuniciraju s mozgom
PutMehanizamDokazi kod ljudi
Vagalni živacAferentne vlakna prenose signale iz crijeva do moždanog stablaAnatomski utvrđeno; uzročnu ulogu je teže testirati
Mikrobiotski metabolitiMasne kiseline kratkog lanca i prekursori neurotransmitera ulaze u cirkulacijuMjerljivo; efekti nizvodno nisu jasni
Imunološko signaliziranjePropusnost crijeva i upalni citokiniAsocijacije utvrđene; pravac sporan
HPA osovinaHormoni stresa mijenjaju funkciju crijeva i obrnutoDvosmjerno i dobro dokumentovano
Enterički nervni sistemIntrinzični crijevni neuroni djeluju polu-neovisnoDobro karakterizirano

Nijedno od ovoga nije marginalno. Enterički nervni sistem sadrži stotine miliona neurona i funkcioniše sa značajnom autonomijom. Stanje crijeva utiče na raspoloženje, a raspoloženje utiče na funkciju crijeva, kao što svako ko je bio nervozan prije ispita već zna.

Putevi komunikacije između crijeva i mozga

Problem pravca

Sistematski pregled otkriva razlike u mikrobioti između ljudi s depresijom ili anksioznošću i kontrolama [2]. Pitanje koje odlučuje sve je u kojem pravcu pokazuje strelica.

Depresija mijenja šta ljudi jedu, koliko se kreću, kako spavaju i često koju terapiju uzimaju. Svaka od tih promjena utiče na mikrobiom. Razlika u mikrobiotskom sastavu je stoga upravo ono što biste očekivali ako depresija uzrokuje promjenu mikrobioma i mikrobiom ne čini ništa.

Ista poteškoća se odnosi na literaturu o metaboličkom sindromu [3] i na radove o autizmu [4], gdje je prehrambena selektivnost uobičajena i sama bi proizvela razlike u mikrobiomu.

Šta bi to riješilo

Randomizirani pokusi definiranih intervencija mikrobioma s kliničkim ishodima, adekvatnim trajanjem i adekvatnom veličinom uzorka. Ti su počeli da se pojavljuju i razlog su zašto će se ova stranica promijeniti. Do tada, iskren stav je da osovina postoji i da su potrošačke primjene zasnovane na njoj neprovjerene — vidi probiotike.

Česta pitanja

Da li su crijeva zaista "drugi mozak"?
Enterički nervni sistem je velik i polu-autonoman, tako da metafora ima osnovu. On ne razmišlja, a ova fraza obavlja više marketinšku nego opisnu funkciju.
Da li 90% serotonina potiče iz crijeva?
Većina serotonina u tijelu se proizvodi u crijevima i on ne prelazi krvno-moždanu barijeru. Serotonin iz crijeva i serotonin iz mozga uglavnom su odvojeni bazeni, što ova tvrdnja obično zanemaruje.
Da li promjena ishrane može promijeniti moje raspoloženje putem crijeva?
Ishrana utiče na raspoloženje putem mnogih puteva. Izolovanje mikrobioma kao posrednika nije postignuto kod ljudi.
Šta zapravo trebam učiniti?
Jedite više vlakana i fermentisane hrane. To je intervencija s najboljim dokazima i najnižim troškom — pogledajte vlakna.
Označene hemijske boce postavljene zajedno na laboratorijskoj klupi
564dude · CC BY-SA 3.0 · Wikimedia Commons

Povezano čitanje

Dokazi iza ove stranice Stogasti grafikon koji prikazuje sastav 14 publikacija navedenih na ovoj stranici prema tipu studije. 1015meta-analysis (10)randomised trial (1)review (5)
16 publikacija, 2019–2025. Ovo je uglavnom opservacijska osnova. Može utvrditi da se stvari dešavaju zajedno; ne može odrediti koja uzrokuje drugu. Izvor: vlastita lista citata ove stranice, ispod.

Reference

Svaka citacija u nastavku povezuje na izvorni recenzirani zapis na PubMed-u ili putem DOI-a. Ništa ovdje nije zamjena za medicinski savjet.

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  2. The Canadian Network for Mood and Anxiety Treatments Task Force Recommendations for the Use of Probiotics, Prebiotics, Synbiotics, and Fecal Microbiota Transplants in Adults With Major Depressive Disorder: Recommandations du Groupe de travail du Réseau canadien pour le traitement des troubles de l'humeur et de l'anxiété (Canadian Network for Mood and Anxiety Treatments, CANMAT) concernant l'utilisation des probiotiques, des prébiotiques, des symbiotiques et de la transplantation de microbiote fécal chez les adultes atteints de trouble dépressif majeur Bahji A, Brietzke E, Cooke NCA, et al. · Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026 · Systematic review DOIPubMed 41252333Full text
  3. Fecal Microbiota Transplantation in Parkinson Disease: A Systematic Review, Meta-Analysis, and Meta-Regression Pereira MAOM, Tudella GCN, Klostermann AU, et al. · Neurology · 2026 · Meta-analysis DOIPubMed 42302222
  4. Systematic Review and Meta-Analysis of the Efficacy of Fecal Microbiota Transplantation in Parkinson's Disease: An Exploration Based on UPDRS and Cognitive Scores Liang B, Zou J, Mao X, et al. · Revista de neurologia · 2026 · Meta-analysis DOIPubMed 42411731Full text
  5. The complex relationship between gut microbiota and Alzheimer's disease: A systematic review Zhou XP, Sun LB, Liu WH, et al. · Ageing research reviews · 2025 · Systematic review DOIPubMed 39662839
  6. Gut microbiota variations in depression and anxiety: a systematic review Cao Y, Cheng Y, Pan W, et al. · BMC psychiatry · 2025 · Systematic review DOIPubMed 40312666Full text
  7. Exploring the gut-exercise link: A systematic review of gastrointestinal disorders in physical activity Al-Beltagi M, Saeed NK, Bediwy AS, et al. · World journal of gastroenterology · 2025 · Systematic review DOIPubMed 40539198Full text
  8. The Microbiota-Gut-Brain Axis in Metabolic Syndrome and Sleep Disorders: A Systematic Review Dos Santos A, Galiè S · Nutrients · 2024 · Systematic review DOIPubMed 38337675Full text
  9. Systematic review: Autism spectrum disorder and the gut microbiota Korteniemi J, Karlsson L, Aatsinki A · Acta psychiatrica Scandinavica · 2023 · Systematic review DOIPubMed 37395517
  10. Microbiota in Autism Spectrum Disorder: A Systematic Review Lewandowska-Pietruszka Z, Figlerowicz M, Mazur-Melewska K · International journal of molecular sciences · 2023 · Systematic review DOIPubMed 38068995Full text
  11. The gut microbiota-brain axis, psychobiotics and its influence on brain and behaviour: A systematic review Barrio C, Arias-Sánchez S, Martín-Monzón I · Psychoneuroendocrinology · 2022 · Systematic review DOIPubMed 34942539
  12. The Gut Microbiome in Depression and Potential Benefit of Prebiotics, Probiotics and Synbiotics: A Systematic Review of Clinical Trials and Observational Studies Alli SR, Gorbovskaya I, Liu JCW, et al. · International journal of molecular sciences · 2022 · Systematic review DOIPubMed 35562885Full text
  13. The gut microbiota in anxiety and depression - A systematic review Simpson CA, Diaz-Arteche C, Eliby D, et al. · Clinical psychology review · 2021 · Systematic review DOIPubMed 33271426
  14. Probiotics for Alzheimer's Disease: A Systematic Review Naomi R, Embong H, Othman F, et al. · Nutrients · 2021 · Systematic review DOIPubMed 35010895Full text
  15. The Role of Bacteria and Its Derived Metabolites in Chronic Pain and Depression: Recent Findings and Research Progress Li S, Hua D, Wang Q, et al. · The international journal of neuropsychopharmacology · 2020 · Systematic review DOIPubMed 31760425Full text
  16. From probiotics to psychobiotics - the gut-brain axis in psychiatric disorders Zagórska A, Marcinkowska M, Jamrozik M, et al. · Beneficial microbes · 2020 · Meta-analysis DOIPubMed 33191776
  17. Investigating the effects of synbiotic intervention on working memory, attention, and inhibitory control in healthy young women Salimi Y, Namdarzadeh B, Dehghani-Arani F, et al. · Behavioural brain research · 2026 · Randomised controlled trial DOIPubMed 42361860
  18. Adjunctive psychobiotic Lactiplantibacillus plantarum PS128 ameliorates gastrointestinal comorbidities and alters circulating miRNAs and gut microbiota in children with Tourette syndrome: a randomized controlled trial Chang YT, Hong SY, Lin SS, et al. · Food & function · 2026 · Randomised controlled trial DOIPubMed 42626970
  19. VSL#3(®) supplementation improves fatigue in long COVID: results from the DELong#3 randomized placebo-controlled trial Amoroso C, Marinoni B, Maragno P, et al. · British journal of biomedical science · 2026 · Randomised controlled trial DOIPubMed 42577968Full text
  20. Mediterranean diet, gut microbiota, and cognitive decline in older adults with obesity/overweight and metabolic syndrome: a prospective cohort study Ni J, Hernández-Cacho A, Nishi SK, et al. · BMC medicine · 2025 · Randomised controlled trial DOIPubMed 41327300Full text
  21. A Randomized Controlled Trial of Probiotics Targeting Gut Dysbiosis in Huntington's Disease Wasser CI, Mercieca EC, Kong G, et al. · Journal of Huntington's disease · 2023 · Randomised controlled trial DOIPubMed 37005888
  22. Probiotic Supplementation Improves Cognitive Function and Mood with Changes in Gut Microbiota in Community-Dwelling Older Adults: A Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial Kim CS, Cha L, Sim M, et al. · The journals of gerontology. Series A, Biological sciences and medical sciences · 2021 · Randomised controlled trial DOIPubMed 32300799Full text
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