title: Effect of end-stage renal disease and diabetes on zinc and copper status.
abstract: The aim of this study was to compare the nutritional status of zinc and copper in patients with and without diabetes submitted to chronic hemodialysis. Thirty-three patients with type 2 diabetes (DM group), 30 nondiabetic patients (NDM group), and 20 healthy individuals (control group) were studied. Plasma, erythrocyte, and urinary zinc and plasma copper were obtained from atomic absorption spectrophotometry and ceruloplasmin by immunonephelometry. The anthropometric parameters were similar among the groups. Plasma zinc was lower and erythrocyte zinc was higher in the DM and NDM groups in relation to the control group. No difference in urinary zinc was observed comparing the groups. Plasma copper was higher in the DM group when compared to the NDM and control groups. Ceruloplasmin was similar in the three groups. Serum urea was a positive independent determinant of plasma zinc concentrations. The determinants of erythrocyte zinc were MAMC midarm muscle circumference and Kt/V dialysis adequacy. The determinants of plasma copper concentration were serum creatinine and serum glucose. The results of this study demonstrate an alteration in the distribution of zinc in patients with chronic kidney disease (CKD) independently of the presence of DM. Also, the status of copper seems not to be influenced by CKD, but only by the metabolic derangements associated with diabetes.
authors.affiliation: Division of Nephrology, Federal University of São Paulo, São Paulo, Brazil.
authors.forename: Maria Nazaré
authors.initials: MN
authors.lastname: Batista
authors.forename: Lílian
authors.initials: L
authors.lastname: Cuppari
authors.forename: Lucia
authors.initials: L
authors.lastname: de Fátima Campos Pedrosa
authors.forename: Maria das Graças
authors.initials: Md
authors.lastname: Almeida
authors.forename: José Bruno
authors.initials: JB
authors.lastname: de Almeida
authors.forename: Anna Cecília Queiroz
authors.initials: AC
authors.lastname: de Medeiros
authors.forename: Maria Eugiènia F
authors.initials: ME
authors.lastname: Canziani
mesh_terms: D000328:Adult; D000368:Aged; D001786:Blood Glucose / Q000378:metabolism; D002570:Ceruloplasmin / Q000378:metabolism; D003300:Copper / Q000097:blood / Q000378:metabolism*; D003404:Creatinine / Q000097:blood; D003924:Diabetes Mellitus, Type 2 / Q000378:metabolism*; D004912:Erythrocytes / Q000378:metabolism; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D013054:Spectrophotometry, Atomic; D015032:Zinc / Q000097:blood / Q000378:metabolism*
chemical_list: D001786:Blood Glucose; D003300:Copper; D003404:Creatinine; D002570:Ceruloplasmin; D015032:Zinc