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[Physiologic variability of plasma catecholamines].

R Pluto, P Bürger, H Weicker

    Klinische Wochenschrift
    |July 15, 1986
    PubMed
    Summary
    This summary is machine-generated.

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    This study establishes normal plasma ranges for noradrenaline, adrenaline, and dopamine using an efficient HPLC method. It also details how factors like posture and smoking affect these crucial neurotransmitter levels.

    Area of Science:

    • Biochemistry
    • Analytical Chemistry
    • Neuroscience

    Context:

    • Accurate measurement of plasma catecholamines is vital for understanding physiological and pathological states.
    • Previous methods for catecholamine determination were often time-consuming and expensive.
    • High-performance liquid chromatography (HPLC) coupled with amperometry offers a more efficient analytical approach.

    Purpose:

    • To establish reference ranges for plasma catecholamine levels (noradrenaline, adrenaline, dopamine) in a large cohort.
    • To investigate the influence of physiological and lifestyle factors on venous catecholamine concentrations.
    • To validate the efficiency and reliability of an HPLC-based method for catecholamine analysis.

    Summary:

    • Established normal plasma ranges for noradrenaline (0.15-3.5 nmol/l), adrenaline (0.01-0.8 nmol/l), and dopamine (0.04-4.5 nmol/l) in 122 healthy individuals.

    Related Experiment Videos

  • Documented the impact of orthostasis, indwelling catheters, food intake, smoking, age, and sex on catecholamine levels.
  • Demonstrated the utility of HPLC-amperometry for large-scale, cost-effective catecholamine analysis, confirming findings from smaller studies.

    • Impact:

    • Provides essential reference values for clinical diagnostics and physiological research.
    • Highlights key variables that must be controlled for accurate catecholamine measurements.
    • Advances the field of neurochemical analysis through a validated, efficient HPLC method.