RecruitingNot ApplicableNCT07381933

The Effect of Consumed Berries on Extracellular Vesicle Signalling in the Body


Sponsor

University of Oulu

Enrollment

60 participants

Start Date

Jan 23, 2026

Study Type

INTERVENTIONAL

Conditions

Summary

This study examines how berry consumption influences the signaling and distribution of extracellular vesicles (EVs) in the human body. EVs are small bilipid-layered nanoparticles released by cells. EVs carry proteins, lipids, and genetic material, and play a key role in cell-to-cell communication. The composition of EVs reflects the state of their cells of origin, and EVs can affect other cells by delivering their biological contents. EVs offer significant potential for both diagnostics and new therapies. Recent research has shown that EVs can be found in blood, urine, sweat, and can even cross biological barriers such as the blood-brain barrier and placenta. Many living organisms, including mammalian cells, bacteria, and plants, release EVs. Berries such as cloudberries and lingonberries have demonstrated positive effects on gut microbiota and metabolism, supporting digestive and metabolic health. In this study, a nutritional intervention will be conducted to investigate the effects of berry consumption on extracellular vesicle signaling of human cells and the gut microbiota, as well as the biodistribution of berry-derived vesicles in the human body.


Eligibility

Min Age: 18 YearsMax Age: 50 Years

Inclusion Criteria4

  • Age 18-50
  • Individuals of all heights and weights and both female and male sexes are accepted
  • Written informed consent is required from all study participants
  • Use of probiotics is allowed, but the usage will be reported

Exclusion Criteria8

  • Known or suspected allergy to cloudberries or lingonberries
  • Current dermatological or gastrointestinal conditions requiring treatment or interfering the sampling
  • Renal failure
  • Type 1 or type 2 diabetes
  • Pregnancy
  • Immunodeficiency or any condition affecting the immune system, e.g. chronic viral infection
  • Ongoing antibiotic treatment or antibiotic treatment within the past 3 months
  • Immunosuppressive medication or other medication that can be influenced by the intervention

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Interventions

DIETARY_SUPPLEMENTCloudberries

Participants consume 270 grams (equivalent of 3 dl) of cloudberries orally twice daily for 7 days.

DIETARY_SUPPLEMENTLingonberries

Participants consume 200 grams (equivalent of 3 dl) of lingonberries orally twice daily for 7 days


Locations(1)

Oulu University Hospital

Oulu, Finland

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NCT07381933


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