Multitracer study on uptake and excretion of trace elements in rats

Area of Science:

• Nuclear Chemistry
• Toxicology
• Animal Physiology

Background:

• Understanding trace element metabolism is crucial for toxicology and nutrition.
• Previous studies often focused on individual elements, limiting comparative analysis.
• The multitracer technique offers a novel approach to simultaneous element investigation.

Purpose of the Study:

• To apply the multitracer technique for investigating the uptake and excretion of multiple trace elements in vivo.
• To simultaneously determine the metabolic behavior of 23 different trace elements in rats.
• To assess the reliability and versatility of the multitracer technique for comparative elemental studies.

Main Methods:

• Preparation of a multitracer solution via gold target irradiation with a 14N-beam.
• Oral administration of the multitracer solution to male Wistar rats.
• Simultaneous determination of uptake and excretion rates for 23 elements (Be, Mn, Co, Zn, As, Rb, Sr, Y, Zr, Ce, Pm, Eu, Gd, Tb, Er, Tm, Yb, Lu, Hf, W, Re, Ir, Pt) under identical conditions.

Main Results:

• Simultaneous uptake and excretion data were obtained for 23 trace elements in rats.
• Results for some elements aligned with existing literature.
• Unique metabolic behaviors for several elements were identified for the first time.

Conclusions:

• The multitracer technique is highly reliable and versatile for comparative studies of trace element metabolism in animals.
• This method enables simultaneous investigation of numerous elements, providing novel insights into their in vivo behavior.
• The findings contribute to a better understanding of trace element dynamics in biological systems.