Hepcidin, Saliva
Conditions
Brief summary
Iron deficiency with or without anemia is considered the most widespread nutritional deficiency in the world. To diagnose iron deficiency anemia (hemoglobin and ferritin measurement), a venous blood sample is necessary. Whole saliva is a potentially attractive fluid for disease biomarker discovery and diagnostic efforts, because it is readily available from most individuals, can be easily collected and the collection procedure is non-invasive. The iron storage protein ferritin is too big, to be secreted into saliva. However, the main iron regulatory protein hepcidin is a very small protein and there is some evidence for hepcidin detection in saliva. The production of serum hepcidin positively correlates with serum ferritin, thereby reflecting patient's iron status. Whether hepcidin is detectable in saliva and whether saliva hepcidin correlates with serum hepcidin with current assays, needs to be tested.
Interventions
blood and saliva sampling
Sponsors
Study design
Eligibility
Inclusion criteria
* Normal-weight (BMI 18-24.9kg/m2) * fasting * Participants Need to have brushed their teeth at least 1 hour before the visit
Exclusion criteria
* acute, chronic illness * use of long-term medication other than contraception * medical Problems known to affect Fe homeostasis * smoking
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Saliva hepcidin | Day 1am | — |
| Serum hepcidin | Day 1am | — |
| Serum ferritin | Day 1am | Iron Status parameter |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| alpha-glycoprotein | Day 1am | Inflammation parameter |
| Hemoglobin | Day 1am | — |
| Saliva hepcidin | Day 1pm | to assess variability in saliva hepcidin during the day |
| Transferrin receptor | Day 1am | Iron Status parameter |
| c-reactive protein | Day 1am | Inflammation parameter |
Countries
Switzerland