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Serum chromium and angiographically determined coronary artery disease
Insights
Higher chromium (Cr3+) levels are linked to healthier arteries. This study found significantly lower serum chromium in individuals with coronary artery disease compared to those with normal arteries.
Area of Science:
- Cardiovascular Health
- Trace Element Metabolism
Background:
- Atherosclerosis is a prevalent cardiovascular disease.
- Population studies suggest a link between lower chromium concentrations and increased atheromatous plaque formation.
- Chromium (Cr3+) is an essential trace element involved in metabolic processes.
Purpose of the Study:
- To investigate the relationship between serum chromium (Cr3+) levels and coronary artery disease (CAD).
- To assess chromium's role in the context of established cardiovascular risk factors.
Main Methods:
- Serum chromium (Cr3+), cholesterol, and triacylglycerol levels were measured in 32 subjects.
- Coronary artery disease was assessed using cineangiography.
- Chromium concentrations were analyzed in relation to disease presence and other risk factors.
Main Results:
- Subjects with coronary artery disease had significantly lower serum chromium concentrations than those with normal arteries.
- A threshold of 5.50 microgram/liter of chromium distinguished subjects with and without significant coronary artery disease.
- Chromium levels showed an inverse relationship with the prevalence of atheromatous plaque.
Conclusions:
- Serum chromium (Cr3+) may play a protective role in cardiovascular health.
- Lower chromium levels are associated with increased risk and presence of coronary artery disease.
- Further research is warranted to elucidate chromium's specific mechanisms in preventing atherosclerosis.
Abstract:
Human aortas sampled from populations where there is little advanced atheromatous plaque formation contain higher concentrations of chromium than do aortas from populations in which atheromatosis is prevalent. In the present study serum cholesterol, triacylglycerols, and chromium (Cr3+) concentrations were measured in 32 subjects in whom coronary artery disease was assessed by cineangiography. The distribution of subjects with diseased and normal arteries overlapped below 5.50 microgram of chromium per liter. Only subjects free of coronary artery disease had chromium concentrations greater than or equal to 5.50 microgram/liter. The role of chromium was assessed in the context of the selected risk factors: cholesterol, triacylglycerols, and systolic and diastolic blood pressure. The group with coronary artery disease had significantly lower serum chromium concentrations than did the group with normally patent arteries.