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- 저자 : ( Chaehoon Han ) (검색결과 1 건)
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Serum alkaline phosphatase and γ-glutamyl transferase in acute pyelonephritis
( Chaehoon Han ),( Young-ki Lee ),( Hayne Cho Park ),( Ajin Cho ),( Sun Ryoung Choi ),( Jong-woo Yoon ),( Ja Ryong Koo ),( Hyung Jik Kim ),( Jung-woo Noh ),( Min-jeong Park ) 대한신장학회 2019 Kidney Research and Clinical Practice Vol.38 No.2
Background: Elevated serum alkaline phosphatase (AP) and γ-glutamyl transferase (γ-GT) are commonly observed in patients with acute pyelonephritis. The goal of this study was to examine the clinical significance of elevated serum AP and γ-GT levels and to explore the mechanisms underlying these changes. Methods: We examined serum AP and γ-GT levels in 438 patients with acute pyelonephritis. Urine AP/creatinine (Cr), urine γ-GT/Cr, fractional excretion of AP, and fractional excretion of γ-GT (FE<sub>γ-GT</sub>) were evaluated in patients with elevated and normal serum levels. AP isoenzymes were also examined. Results: We identified 77 patients (17.6%) with elevated serum AP and 134 patients (30.6%) with elevated serum γ-GT. Among them, both enzymes were elevated in 64 patients (14.6%). Older age, longer hospital stay, elevated baseline serum Cr, and complicated pyelonephritis were associated with increases in serum AP and γ-GT. Multivariate analysis showed that high serum AP levels were significantly correlated with renal impairment (odds ratio, 2.13; 95% confidence interval, 1.08-4.19; P = 0.029). FE<sub>γ-GT</sub> was significantly lower in patients with elevated serum enzyme levels. The liver fraction for AP isoenzyme profile did not increase in patients with elevated serum AP. Conclusion: Our results demonstrated that elevated serum AP and γ-GT levels are associated with complicated pyelonephritis and renal impairment. Lower FE<sub>γ-GT</sub> levels in patients with elevated serum enzymes may be the result of decreased urinary excretion of these enzymes.
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