Used in biomedical research to quantify levels of thioredoxin (Trx), a key protein involved in cellular redox regulation. The kit enables detection of Trx in human serum, plasma, and cell lysates, supporting studies on oxidative stress, inflammation, cancer, and neurodegenerative diseases. It is widely applied in clinical labs and pharmaceutical research to evaluate redox status and assess the impact of therapeutic agents on antioxidant pathways. The assay is sensitive, specific, and suitable for high-throughput analysis.