Used in neuroscience and biomedical research to measure levels of 3-methoxy-4-hydroxyphenylglycol (MHPG), a major metabolite of norepinephrine, in biological samples such as plasma, urine, or cerebrospinal fluid. The ELISA research kit enables researchers to assess norepinephrine turnover, which is valuable in studying disorders related to the sympathetic nervous system and central noradrenergic activity. Common applications include research on depression, anxiety, stress-related disorders, schizophrenia, and neurodegenerative diseases. The assay is also used in pharmacological studies to evaluate the effects of drugs that modulate noradrenergic function, such as antidepressants, antipsychotics, and stimulants. Due to its sensitivity and specificity, this kit supports quantitative analysis in both clinical and preclinical settings.