Analysis of Trace Elements in Human Brain: Its Aim, Methods, and Concentration Levels.

Area of Science:

• Biochemistry
• Neuroscience
• Analytical Chemistry

Background:

• Trace elements are essential for biochemical processes, acting as cofactors for enzymes and vitamins.
• Maintaining metal ion homeostasis in the brain is critical, as both deficiency and excess can cause oxidative stress.
• Altered trace element levels are linked to neurodegenerative diseases such as Alzheimer's, Parkinson's, and Huntington's disease.

Purpose of the Study:

• To review key analytical methods for quantifying trace elements in the brain.
• To provide a summary of reported concentration values for trace elements in brain tissue.

Main Methods:

• Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
• Flame Atomic Absorption Spectrometry (FAAS)
• Electrothermal Atomic Absorption Spectrometry (GFAAS)
• Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES)
• X-ray Fluorescence Spectrometry (XRF)
• Neutron Activation Analysis (NAA)

Main Results:

• The review covers six prominent analytical techniques for trace element analysis.
• Concentration values obtained by various research groups are summarized.

Conclusions:

• Accurate measurement of trace elements is crucial for understanding their role in brain health and disease.
• The reviewed analytical methods provide essential tools for diagnosing and researching neurodegenerative disorders.