Using wound fluid analyses to identify trace element requirements for efficient healing

Area of Science:

• Analytical Chemistry
• Biochemistry
• Oncology

Background:

• Trace elements like copper and zinc play crucial roles in biological processes.
• Understanding their speciation in disease states, such as breast cancer, is vital.
• Wound fluid offers a unique matrix for studying local physiological changes.

Purpose of the Study:

• To quantify copper and zinc concentrations in breast cancer patient wound fluid and blood plasma.
• To identify the specific chemical species of copper and zinc present in these samples.
• To compare trace element levels between wound fluid, plasma, and reference values.

Main Methods:

• Potentiometric Stripping Analysis (PSA) was employed for trace element quantification.
• Computer-aided chemical speciation modeling (using JESS) identified individual metal species.
• Analysis included wound fluid, pre-operative blood plasma, and reference values.

Main Results:

• Quantified total concentrations of copper and zinc in wound fluid and plasma.
• Identified predominant copper and zinc species in wound fluid using a JESS model.
• Investigated the influence of pH and component concentrations on species predominance.

Conclusions:

• The study provides detailed speciation of copper and zinc in breast cancer patient samples.
• The findings highlight the potential clinical significance of trace element profiles in wound fluid.
• Further research is recommended to explore the implications of these trace element species.