Data/hora: 15/06/2024 17:03:55

Provedor de dados: | 56
País: | Brazil
Título: | Determination of serum aluminum, platelet aggregation and lipid peroxidation in hemodialyzed patients
Autores: | Neiva,T.J.C.; Benedetti,A.L.; Tanaka,S.M.C.N.; Santos,J.I.; D'Amico,E.A.
Data: | 2002-03-01
Ano: | 2002
Palavras-chave: | Aluminum; Peroxidation; Hemodialysis; Platelets.
Resumo: | Aluminum (Al3+) overload is frequently associated with lipid peroxidation and neurological disorders. Aluminum accumulation is also reported to be related to renal impairment, anemia and other clinical complications in hemodialysis patients. The aim of the present study was to determine the degree of lipid peroxidation, platelet aggregation and serum aluminum in patients receiving regular hemodialytic treatment. The level of plasma lipid peroxidation was evaluated on the basis of thiobarbituric acid reactive substances (TBARS). Mean platelet peroxidation in patients undergoing hemodialysis was significantly higher than in normal controls (2.7 ± 0.03 vs 1.8 ± 0.06 nmol/l, P&lt;0.05). Platelet aggregation and serum aluminum levels were determined by a turbidimetric method and atomic absorption spectrophotometry, respectively. Serum aluminum was significantly higher in patients than in normal controls (44.5 ± 29 vs 10.8 ± 2.5 µg/l, P&lt;0.05). Human blood platelets were stimulated with collagen (2.2 µg/ml), adenosine diphosphate (6 µM) and epinephrine (6 µM) and showed reduced function with the three agonists utilized. No correlation between aluminum levels and platelet aggregation or between aluminum and peroxidation was observed in hemodialyzed patients.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300009
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/S0100-879X2002000300009
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.35 n.3 2002
Fonte: | info:eu-repo/semantics/openAccess