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Related Experiment Video

Updated: Jun 20, 2026

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
12:33

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

[Not Available].

J Widmer1, J G Henrotte, Y Raffin

  • 1Department of Psychiatry, Division of Neuropsychiatry, Laboratory of Biochemistry, Psychiatric Hospital, University of Geneva, Chemin du Petit Bel-Air 2, CH-1225 Chêne-Bourg, Geneva, Switzerland.

European Psychiatry : the Journal of the Association of European Psychiatrists
|August 25, 2009
PubMed
Summary
This summary is machine-generated.

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Major depression is linked to higher blood magnesium levels, particularly in red blood cells. This increase in intracellular magnesium may correlate with hypoexcitability in some patients.

Area of Science:

  • Neuroscience
  • Biochemistry
  • Psychiatry

Context:

  • Previous research indicated elevated blood magnesium in drug-free major depression patients.
  • Intracellular magnesium levels correlated with depression severity in earlier studies.
  • This study investigates erythrocyte and plasma magnesium in a larger cohort.

Purpose:

  • To compare blood magnesium levels (erythrocyte and plasma) in major depressed patients versus healthy controls.
  • To explore the relationship between magnesium levels and depression symptom intensity, including psychomotor retardation.
  • To investigate potential links between peripheral magnesium changes and central nervous system excitability.

Summary:

  • Mean erythrocyte and plasma magnesium levels were significantly increased in 88 major depressed patients compared to 61 controls.

Related Experiment Videos

Last Updated: Jun 20, 2026

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
12:33

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

  • Approximately 40% of patients exhibited a marked increase in intracellular magnesium, while 60% had normal values.
  • Elevated erythrocyte magnesium correlated with psychomotor retardation (hypoexcitability), unlike anxiety or moral pain levels.

    • Impact:

    • Suggests a potential link between central hypoexcitability and increased peripheral intracellular magnesium in depression.
    • Highlights magnesium dysregulation as a possible factor in specific depressive symptom clusters.
    • Informs future research on magnesium's role in neurological and psychiatric disorders.