title: Association of Ca×PO4 product with levels of serum C-reactive protein in regular hemodialysis patients.
abstract: BACKGROUND
  Numerous studies have attempted to identify risk factors for mortality and morbidity in maintenance hemodialysis patients. In this study we sought to examine the association of the levels of serum C-reactive protein (CRP) with value of Ca×PO4 product, in stable hemodialysis patients.
  
  
  METHODS
  Based on the severity of secondary hyperparathyroidism, patients being treated with oral active vitamin D3, calcium carbonate/Renagel tablets at various doses. Fasting serum 25-hydroxy vitamin D and intact serum parathormone and also serum blood urea nitrogen, CRP, calcium, phosphorus, alkaline phosphatase was measured.
  
  
  RESULTS
  A total of 41 patients, enrolled to the study. The mean patients' age were 46(17.6) years. The value of serum CRP of patients was 8.6 (6.6) mg/l (median 6 mg/l). The value of Ca×PO4 product was 50.5(15.5) mg2/dl2 (median: 50 mg(2)/dl(2)). In this study, a significant inverse association between Ca×PO4 product and the age of the patients was seen. A significant positive correlation of logarithm of serum CRP with Ca×PO4 product was found.
  
  
  CONCLUSIONS
  The result of this study, revealed the need to further attention to hyperphosphatemia in hemodialysis patients.
authors.affiliation: Department of Nephrology, Shahrekord University of Medical Sciences, Shahrekord, Iran.
authors.forename: Hamid
authors.initials: H
authors.lastname: Nasri
keywords: End-stage renal disease; Hemodialysis; Hyperphosphatemia