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High mobility group box 1 and tumor growth factor β: useful biomarkers in pediatric patients receiving peritoneal dialysis.

Abstract：

BACKGROUND:Peritonitis, the most important limitation of peritoneal dialysis (PD), could be detected by biomarkers in dialysate effluent, representing a noninvasive method to indirectly assess the peritoneum status. The aim of our study was to test high mobility group box 1 (HMGB1) in PD patients, evaluating its role as precocious marker of peritoneum damage during peritonitis. Transforming growth factor (TGF)-β was correlated with peritoneal transport characteristics. METHODS:Six patients, treated by ambulatory PD, were enrolled. Samples were collected at the onset of peritonitis (T1) and every day until its resolution (T-end). Serum (s) and peritoneal (p) white blood cell (WBC) count was also evaluated. Peritoneal Equilibration Test evaluated the filter activity of peritoneum. RESULTS:In patients with acute peritonitis, the highest serum and peritoneal HMGB1 values (64 ± 3.6 and 70 ± 5.3 ng/mL, respectively) were assessed, with a progressive decrease of their levels at the resolution time (T-end: sHMGB1:36 ± 2.5; pHMGB1:30.5 ± 7.0 ng/mL). While no differences of sWBC and pWBC were observed between baseline and T-end values, pHMGB1 levels remained higher at T-end than those observed at T0 (pHMGB1:30.5 ± 7.0 versus 6.9 ± 3.6; p < 0.0001). TGF-β levels were higher in patients with low peritoneal permeability than in medium or high transporter patients (81 ± 15.5 versus 24.3 ± 7.5 pg/mL; p = 0.01). An inverse correlation was found between TGF-β levels and dialysate/plasmatic creatinine values (r = -0.83; p = 0.03). CONCLUSION:HMGB1 represents a useful biomarker for peritoneum evaluation in PD patients. A prognostic role of this alarmin, as a marker of response to therapy, could be hypothesized. TGF-β could predict the peritoneal transport status and dialysis technique adequacy.

journal_name

Ren Fail

journal_title

Renal failure

authors

Chimenz R,Lacquaniti A,Colavita L,Chirico V,Fede C,Buemi M,Fede C

doi

10.1080/0886022X.2016.1216711

subject

Has Abstract

pub_date

2016-10-01 00:00:00

pages

1370-1376

issue

eissn

0886-022X

issn

1525-6049

journal_volume

pub_type

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High mobility group box 1 and tumor growth factor β: useful biomarkers in pediatric patients receiving peritoneal dialysis.