[Methods for determination of cholinesterase activity]

Area of Science:

• Biochemistry
• Neuroscience
• Analytical Chemistry

Background:

• Cholinesterases are vital enzymes in cholinergic neurotransmission, hydrolyzing acetylcholine.
• Altered cholinesterase activity is associated with neurological disorders such as Alzheimer's and Parkinson's disease.

Purpose of the Study:

• To review and compare various methods for determining cholinesterase activity.
• To provide guidance for selecting appropriate assays based on experimental requirements.

Main Methods:

• Discussion of diverse analytical approaches including spectrophotometric, radiometric, histochemical methods, and biosensors.
• Evaluation of pH-dependent assays and their specific applications.
• Comparison of established techniques like Ellman's assay and Johnson Russell method with novel approaches using golden nanoparticles.

Main Results:

• Each method presents unique advantages and disadvantages regarding sensitivity, precision, and applicability.
• The choice of method depends on factors like laboratory equipment, analytical needs, and specific conditions (pH, temperature).

Conclusions:

• Accurate and efficient determination of cholinesterase activity is essential for disease research.
• This review serves as a resource for researchers to select the most suitable method for their cholinesterase activity studies.