Biol Trace Elem Res. 2004 Jan;97(1):31-41. Related Articles, Links
Alterations in plasma essential trace elements selenium, manganese,
zinc, copper, and iron concentrations and the possible role of these
elements on oxidative status in patients with childhood asthma.
Kocyigit A, Armutcu F, Gurel A, Ermis B.
Department of Biochemistry, Medical Faculty, Harran University,
Sanliurfa, Turkey.
The aim of the present study is to evaluate the status of plasma
essential trace element selenium (Se), manganese (Mn), copper (Cu),
zinc (Zn), and iron (Fe) concentrations and the effect of these
elements on oxidative status in patients with childhood asthma. Plasma
Se, Mn, Cu, and Zn concentrations were determined by atomic absorption
spectrophotometry (AAS) and Fe concentrations, malondialdehyde (MDA),
and total antioxidant capacity (TAC) were determined by the
colorimetric method. The plasma MDA/TAC ratio was calculated as an
index of oxidative status. Plasma albumin levels were measured to
determine nutritional status. Plasma Fe concentrations, MDA levels and
the MDA/TAC ratio were significantly higher (p<0.001, p<0.001, and
p<0.01, respectively) and Se and Mn concentrations and TAC were lower
(p<0.01, p<0.05, and p<0.01, respectively) in patients when compared to
the healthy subjects. Plasma Zn, Cu, and albumin levels were not found
to be significantly different in patients and controls (p>0.05). There
were positive relationships between plasma MDA and Fe (r=0.545,
p<0.001) and TAC and Se (r= 0.485, p<0.021), and a negative correlation
between TAC and MDA values (r= -0.337, p<0.031) in patients with
childhood asthma. However, there was no correlation between these trace
elements and albumin content in patient groups. These observations
suggest that increased Fe and decreased Se concentrations in patients
with childhood asthma may be responsible for the oxidant/antioxidant
imbalance.
PMID: 14742898 [PubMed - indexed for MEDLINE]
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