title: The association of endothelial progenitor cell markers with arteriovenous fistula maturation in hemodialysis patients.
abstract: OBJECTIVE
  Arteriovenous fistula (AVF) failure is one of the most important clinical problems in end-stage renal disease. Endothelial progenitor cells (EPCs) have a role on vascular angiogenesis and endothelialization. We aimed to investigate the association markers of EPCs on AVF maturation by measuring the surface expressions of CD34, CD309 and CD133 on the monocytes.
  
  
  METHODS
  This prospective observational study was conducted in 54 voluntary patients with end-stage renal disease who were admitted for their first renal replacement therapy and were available for AVF creation. Venography was performed in all patients before AVF creation. Six patients were excluded due to inadequate veins after venographic imaging, and also seven patients were excluded due to postoperative thrombosis. The blood samples were analyzed a day before the fistula operation, and the expressions of CD34, CD133 and CD309 on the surface of monocytes were measured.
  
  
  RESULTS
  Patients were divided into two groups after the evaluation of AVF maturation, as the mature group and the failure group. The CD309 expression level on the monocytes was 338.00 (35.00-479.00) in the mature group; however, it was 36.00 (5.50-237.00) (p 0.031) in the failure group. Multiple logistic regression analyses showed that both BMI and the mean fluorescence intensity level of CD309 expression on monocytes independently predicted AVF maturation.
  
  
  CONCLUSIONS
  The presence of DM and increased BMI negatively correlated with AVF maturation. High intensity of CD309 expression on monocytes was observed in patients with successful AVF maturation.
authors.affiliation: Department of Internal Medicine, Erciyes University Medical School, Kayseri, Turkey. drerayeroglu@hotmail.com.
authors.forename: Eray
authors.initials: E
authors.lastname: Eroglu
authors.affiliation: Department of Nephrology, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Ismail
authors.initials: I
authors.lastname: Kocyigit
authors.affiliation: Department of Immunology, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Berkay
authors.initials: B
authors.lastname: Saraymen
authors.affiliation: Department of Cardiovascular Surgery, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Aydin
authors.initials: A
authors.lastname: Tuncay
authors.affiliation: Department of Radiology, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Ertugrul
authors.initials: E
authors.lastname: Mavili
authors.affiliation: Department of Nephrology, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Aydin
authors.initials: A
authors.lastname: Unal
authors.affiliation: Department of Immunology, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Huseyin
authors.initials: H
authors.lastname: Avcilar
authors.affiliation: Department of Immunology, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Mustafa Yavuz
authors.initials: MY
authors.lastname: Koker
authors.affiliation: Department of Nephrology, Erciyes University Medical School, Kayseri, Turkey.
authors.forename: Oktay
authors.initials: O
authors.lastname: Oymak
mesh_terms: D000071916:AC133 Antigen / Q000097:blood; D000368:Aged; D018952:Antigens, CD34 / Q000097:blood; D001166:Arteriovenous Shunt, Surgical; D015992:Body Mass Index; D066026:Endothelial Progenitor Cells / Q000502:physiology*; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000097:blood* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009000:Monocytes / Q000502:physiology*; D011446:Prospective Studies; D006435:Renal Dialysis; D040301:Vascular Endothelial Growth Factor Receptor-2 / Q000097:blood
chemical_list: D000071916:AC133 Antigen; D018952:Antigens, CD34; C000588866:KDR protein, human; D040301:Vascular Endothelial Growth Factor Receptor-2
keywords: Arteriovenous fistula; Diabetes mellitus; Endothelial progenitor cells