Trace element status (Se, Zn, Cu) in heart failure
Feridun Koşar1, Ibrahim Sahin, Cağatay Taşkapan
1Department of Cardiology, Medical Faculty, Inönü University, Malatya, Turkey. mferidunkosar@yahoo.com
Insights
Heart failure patients show altered trace element levels, with lower selenium and zinc, and higher copper. These changes were consistent between idiopathic dilated and ischemic cardiomyopathy.
Area of Science:
- Cardiology
- Trace Element Metabolism
- Biochemistry
Background:
- Trace elements are implicated in heart failure pathogenesis.
- Understanding serum trace element profiles in heart failure is crucial.
Purpose of the Study:
- To assess serum selenium (Se), zinc (Zn), and copper (Cu) in heart failure (HF) patients.
- To compare trace element levels in idiopathic dilated cardiomyopathy (IDCM) and ischemic cardiomyopathy (ICM) versus healthy controls.
Main Methods:
- Serum Se, Zn, and Cu levels were measured in 54 HF patients and 30 healthy controls.
- Atomic absorption spectrophotometry was used for trace element analysis.
- HF patients were categorized into IDCM and ICM subgroups.
Main Results:
- HF patients exhibited significantly lower serum Se and Zn compared to controls (p=0.000, p<0.01).
- HF patients showed significantly higher serum Cu concentrations than controls (p=0.000).
- No significant differences in trace element status were found between IDCM and ICM patients.
Conclusions:
- Heart failure is associated with distinct alterations in serum Se, Zn, and Cu concentrations.
- Serum trace element profiles for Se, Zn, and Cu are similar in IDCM and ICM.
- No significant correlations were observed between trace element levels and echocardiographic/hemodynamic parameters.
Objective:
It has been speculated that trace elements may play a role in the pathogenesis of heart failure. In the present study, we aimed to assess serum concentrations of selenium (Se), zinc (Zn) and copper (Cu) in patients with heart failure (HF) and to compare idiopathic dilated cardiomyopathy (IDCM) and ischemic cardiomyopathy (ICM) patients with healthy controls.
Methods:
This study population included 54 HF patients (26 IDCM patients and 28 ICM patients) and 30 healthy subjects. Serum levels of selenium, zinc, and copper were assessed by atomic absorption spectrophotometry method.
Results:
Serum concentrations of Se and Zn in HF patients were significantly lower than in healthy controls (p=0.000 and p<0.01, respectively). However, serum Cu concentrations in these patients were significantly higher than in controls (p=0.000). There were no significant difference in the trace elements status between IDCM and ICM patients (p>0.05 for all parameters). Relationships of the serum trace element concentrations studied with echocardiographic and hemodynamic parameters were not statistically significant.
Conclusion:
Our study showed that heart failure is associated with lower Se and Zn concentrations, and higher Cu concentration, and serum Se, Zn and Cu element profiles were similar in IDCM and ICM.
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