Objective
To explore the effect of microinflammation on serum ferritin (SF) and transferin saturation (TSAT) in maintenance hemodialysis patients.
Methods
One hundred and fiftyeight cases of maintenance hemodialysis were enrolled, including 97 male and 60 female cases with an average age of 57.9±16.6 years. Case inclusion criteria: (1) regular hemodialysis for more than 6 months;(2) Any age and gender; (3) no bleeding or blood transfusion events within 3 months; (4) SF≥200 μg/ L.Case exclusion criteria: (1) any serious infections; (2) severe malnutrition; (3) severe heart failure;(4) active systemic diseases. The patients were divided into group A (CRP≤8 mg/L) and group B (CRP >8 mg/L) according to the C-reactive protein (CRP) level. The differences of serum ferrum (Fe), TSAT,SF and hemoglobin (Hb) were compared between the two groups by t test. According to the SF level, the patients were also divided into group 1 (SF < 500 μg/L) and group 2 (SF≥500 μg/L) between which the differences of CRP and Hb were compared by t test. The correlation between CRP and Fe, TSAT, SF, or Hb in all patients was analyzed by Pearson correlation analysis.
Results
(1) When compared with group B,group A showed lower level of SF but higher levels of TSAT, Fe, and Hb (P < 0.05). (2) When compared with group 1, group 2 showed significantly higher level of CRP (P< 0.05). There was no significant difference in Hb between (t = 1.524, P = 0.052) group1 and group2 (P > 0.05). (3) Pearson correlation analysis showed that Fe, TSAT, and Hb all had a negative correlation with CRP.
Conclusion
The levels of SF, TSAT, Fe, and Hb are constantly affected by chronic inflammation in maintenance hemodialysis patients. Therefore, the combination tests of SF, TSAT and CRP may favor the correct assessment of ferrum metabolism state.