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AGE and CALLY Index in Familial Mediterranean Fever
Sponsor: Bursa City Hospital
Summary
Familial Mediterranean Fever (FMF) is an autoinflammatory disease characterized by recurrent inflammatory attacks and persistent low-grade inflammation. Even during attack-free periods, subclinical inflammation may continue and contribute to long-term complications. Advanced glycation end products (AGEs) are molecules that accumulate under chronic inflammatory and oxidative stress conditions. AGEs can be measured non-invasively using skin autofluorescence (SAF). The C-reactive protein-albumin-lymphocyte (CALLY) index is a composite marker derived from routine laboratory parameters and reflects systemic inflammation and nutritional status. This observational cross-sectional study aims to evaluate the association between skin autofluorescence-measured AGE levels and the CALLY index in patients with FMF. The study will also compare AGE levels between FMF patients and age- and sex-matched healthy controls. The study does not involve any intervention, treatment assignment, or randomization. All laboratory parameters will be obtained from routine clinical evaluations, and AGE measurement will be performed using a non-invasive device.
Official title: Association Between Skin Autofluorescence-Measured Advanced Glycation End Products and the CALLY Index in Patients With Familial Mediterranean Fever: A Cross-Sectional Controlled Study
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
OBSERVATIONAL
Enrollment
150
Start Date
2026-02-01
Completion Date
2026-11-01
Last Updated
2026-02-27
Healthy Volunteers
Yes
Conditions
Interventions
Skin Autofluorescence Measurement
Non-invasive measurement of advanced glycation end products (AGE) using skin autofluorescence technology. The assessment is performed once at baseline using a validated optical device applied to the volar side of the forearm. The procedure is painless, requires no blood sampling, and does not involve any therapeutic intervention or treatment assignment.