Status:

COMPLETED

Probiotics, Brain Structure and Psychological Variables

Lead Sponsor:

Universitätsklinikum Hamburg-Eppendorf

Conditions:

Depressive Symptoms

Anxiety

Eligibility:

All Genders

18-40 years

Phase:

NA

Brief Summary

Theory and research on the gut-brain-axis emphasize complex interactions between the gut microbiota, immunological and hormonal responses, brain function, brain structure, as well as resulting behavio...

Detailed Description

A double-blind RCT intervention study will be conducted to investigate the effect of a probiotic dietary supplement vs. a placebo, taken by healthy human participants (N = 60) for 28 consecutive days....

Eligibility Criteria

Inclusion

  • healthy participants
  • age 18-40
  • informed consent for all parts of the study (including MRT)
  • none of the exclusion criteria (see below) fulfilled

Exclusion

  • age \< 18 or \> 40 years
  • pregnancy or breastfeeding
  • left-handedness
  • degenerative or inflammatory diseases of the central nervous system
  • severe cognitive/ neuropsychological impairment
  • severe pain syndrome or other severe organic diseases
  • epilepsy
  • (past or present) psychiatric disorders
  • neurological disorder
  • severe diabetic polyneuropathy
  • malignancies/ cancer
  • cardiac insufficiency
  • arterial hypertension
  • heart attack/ stroke
  • severe hepatic or renal insufficiency
  • diseases of the hemopoietic system
  • alcoholism/ drug addiction
  • medical history of severe allergic or toxic reactions
  • current participation in drug trial
  • doubts about legal capacity/ capability of understanding
  • referral to institutions based on court/ official order
  • treatment with centrally acting medication (e.g. antipsychotics, antiepileptics, antidepressants, etc.)
  • non-removable metal pieces (aneurysm clips, artificial limbs, etc.) or implanted electronic devices (pacemaker, osmotic or other implanted pumps, cochlear implants, etc.)
  • claustrophobia
  • acute (respiratory) infection, physical uneasiness
  • tattoos in the head region, permanent make-up
  • non-removable piercings
  • chronic/ acute gastrointestinal diseases
  • vegetarianism, veganism
  • current intake of antibiotics or intake of antibiotics at any time point during the last 2 months
  • lactose intolerance
  • general focus on probiotic diet

Key Trial Info

Start Date :

January 8 2018

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

January 28 2021

Estimated Enrollment :

59 Patients enrolled

Trial Details

Trial ID

NCT03478527

Start Date

January 8 2018

End Date

January 28 2021

Last Update

February 9 2021

Active Locations (1)

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Universitätsklinikum Hamburg-Eppendorf, Klinik und Poliklinik für Psychiatrie und Psychotherapie

Hamburg, Germany, 20246