Metalloproteinase Levels in Systemic Lupus Erythematosus Patients
Author Information
Author(s): Ewa Robak, Agnieszka Wierzbowska, Magdalena Chmiela, Liliana Kulczycka, Anna Sysa-Jędrejowska, Tadeusz Robak
Primary Institution: Medical University of Lodz
Hypothesis
The study investigates serum concentrations of total and active metalloproteinase-9 and tissue inhibitor of metalloproteinases-1 in patients with systemic lupus erythematosus (SLE).
Conclusion
Serum levels of total metalloproteinase-9, active metalloproteinase-9, and tissue inhibitor of metalloproteinases-1 are lower in SLE patients compared to healthy controls.
Supporting Evidence
- Serum levels of total metalloproteinase-9 were lower in SLE patients than in healthy volunteers.
- Active SLE patients had lower levels of active metalloproteinase-9 compared to those with inactive disease.
- Tissue inhibitor of metalloproteinases-1 levels were also lower in SLE patients than in controls.
- Positive correlations were found between total metalloproteinase-9 and active metalloproteinase-9 in SLE patients.
Takeaway
This study found that people with lupus have lower levels of certain proteins in their blood compared to healthy people, which might be important for understanding the disease.
Methodology
The study measured serum concentrations of total metalloproteinase-9, active metalloproteinase-9, and tissue inhibitor of metalloproteinases-1 in 41 SLE patients and 20 healthy controls using ELISA and fluorometric assays.
Limitations
The small sample size may limit the generalizability of the findings.
Participant Demographics
The study included 41 patients with SLE (38 females and 3 males) and 20 healthy controls, with a median age of 40.5 years for SLE patients.
Statistical Information
P-Value
P = .004 for TIMP-1, P = .035 for aMMP-9, P = .048 for tMMP-9 in active vs inactive SLE.
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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