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Biaxial Mechanical Characterizations of Atrioventricular Heart Valves
Published on: April 9, 2019
Trace element changes in sclerotic heart valves from patients are expressed in their blood
Christina Nyström-Rosander1, Ulf Lindh, Göran Friman
1Section of Infectious Diseases, Department of Medical Sciences, Uppsala University Hospital, Uppsala, Sweden. Christina.Nystrom-Rosander@infektion.uu.se
Insights
Blood trace element levels are altered in patients with aortic valve sclerosis, indicating complex interactions within the body. These changes may reflect an ongoing infectious or inflammatory process in cardiovascular disease.
Area of Science:
- Cardiovascular Medicine
- Trace Element Research
- Biochemistry
Background:
- Heart disease pathogenesis is linked to trace element imbalances.
- Blood trace element changes related to cardiovascular alterations are largely unknown.
- Aortic valve sclerosis patients exhibit disturbed trace element balance in valve tissue.
Purpose of the Study:
- To investigate blood trace element levels in patients with non-rheumatic aortic valve sclerosis.
- To compare blood trace element profiles between patients and healthy controls.
- To understand the relationship between blood and valve trace element levels in this condition.
Main Methods:
- Analysis of blood trace element levels in 46 patients with aortic valve sclerosis.
- Comparison with blood trace element levels in 46 healthy controls.
- Assessment of 15 different trace elements, including cadmium (Cd), magnesium (Mg), copper (Cu), selenium (Se), cobalt (Co), zinc (Zn), arsenic (As), calcium (Ca), iron (Fe), lead (Pb), vanadium (V), manganese (Mn), mercury (Hg), aluminum (Al), and silver (Ag).
Main Results:
- Significant changes in blood levels of 8 out of 15 trace elements were observed in patients compared to controls.
- Cd and Mg increased in both blood and valves; Cu and Se increased in blood but decreased in valves; Co and Zn decreased in blood but increased in valves.
- A high blood copper/zinc ratio suggests a potential infectious or inflammatory process.
Conclusions:
- Blood trace element alterations are evident in aortic valve sclerosis.
- Complex competition and exchange of elements between body compartments occur in this disease.
- The observed pattern suggests potential links to infectious or inflammatory processes.
Abstract:
The pathogenesis of some heart diseases has been associated with changes in the balance of certain trace elements. However, whether blood trace element changes exist that are related to changes in the cardiovascular system are, in most cases, unknown. In this study, blood trace element levels were analysed in 46 patients with non-rheumatic aortic valve sclerosis that were previously shown to have a disturbed trace element balance in their valve tissue, including 11/15 elements. Results showed significant changes of blood levels of 8/15 trace elements in these patients when compared with blood levels in 46 healthy controls. Of these elements, Cd and Mg were the only elements that increased in both blood and valves. Cu and Se were increased in blood but decreased in valves, whereas Co and Zn were decreased in blood but increased in valves. Several elements (As, Ca, Fe, Pb, and V) were unchanged in blood although changed in valves. Although Mn and Hg showed changes in blood, this was not evident in the valves. Al and Ag were the only elements that did not change in both blood and valves. Significant covariation in blood and valve levels was only observed for Al and Pb. The recorded pattern of trace element changes indicates a complex competition/exchange between body compartments in this disease, where the increased blood Cu/Zn ratio suggests an ongoing infectious/inflammatory process.
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