Healthy
Conditions
Brief summary
The main objective of this study is, after collecting serum enriched with metabolites of interest resulting from the ingestion of the Kera-Diet® food supplement, to determine the influence of these sera enriched with circulating metabolites (versus naïve sera) on the behavior of human cell cultures, placed under stress conditions or not, in order to evaluate the benefit of these metabolites in maintaining cellular functions.
Interventions
The clinical study will be conducted in two phases. The first phase will aim at characterizing the metabolites present in human serum after consumption of the Kera-Diet® ingredient and at determining the overall absorption peak of the tested ingredient. The second phase will involve collecting sera enriched with metabolites at the absorption peak, following the ingestion of the ingredient. Subsequently, the final objective will be to characterize the influence of these sera enriched with metabolites of interest on the behavior of human skin cell and intestinal epithelial cell cultures.
Sponsors
Study design
Eligibility
Inclusion criteria
Main inclusion Criteria: * Liver function tests within reference norms. * Kidney function tests within reference norms. * Complete blood count (CBC) within reference norms. * C-reactive protein (CRP) within reference norms. * Blood pressure compatible with study requirements. * Non-smoker or occasional smoker (max 5 cigarettes/day or max 10 ml per week of e-liquid with a nicotine concentration of 3 mg/ml). * Max 5 hours of intense sports per week. * Weight ≥ 60 kg. * BMI between 20 and 28 kg/m² (exclusive). Main
Exclusion criteria
* Any type of vaccination within the past month. * Alcohol consumption exceeding WHO standards (Sup. 3 drinks per day for men). * Ongoing treatment (medication, dietary supplement, or probiotic) and within the four weeks prior to inclusion. * Known pathology (including seasonal). * Allergy to the study product, particularly to keratin or certain amino acids. * Individuals following a diet unsuitable for the study (e.g., vegetarian, vegan, or plant-based diets). * Change in eating habits within the 4 weeks prior to inclusion. * Medical and/or surgical history deemed incompatible with the trial by the investigator or their representative.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Determination of the influence of human serums enriched with circulating metabolites on human cell cultures | Determination of the absorption peak: kinetics will be determined by a blood draw at different time points (T0, T5, T10, T20, T30, T45, T60, T80, T100, T120, T140, T180, T240 minutes) over the 4 hours following the ingestion of the study product | Determination of the influence of human serums enriched with circulating metabolites (versus naïve serums) on the behavior of human cell cultures exposed or not to stress conditions in order to evaluate the benefit of these metabolites in maintaining cellular functions. |
Countries
France