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Related Experiment Videos

Blood-C.S.F. barriers dysfunction in the chronic organic brain syndrome; a R.I.A. study

Y Vardi, P Czerniak, Y Rabey

    Schweizer Archiv Fur Neurologie, Neurochirurgie Und Psychiatrie = Archives Suisses De Neurologie, Neurochirurgie Et De Psychiatrie
    |January 1, 1978
    PubMed
    Summary
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    Cerebrospinal fluid (CSF) thyroid hormone levels, including thyroxine (T4) and thyroid-stimulating hormone (TSH), were elevated in most patients with organic brain syndrome (OBS). This suggests a breakdown of blood-CSF barriers in OBS patients, indicating brain barrier dysfunction.

    Area of Science:

    • Neuroendocrinology
    • Neurology
    • Biochemistry

    Background:

    • Organic brain syndrome (OBS) is a complex neurological condition.
    • Thyroid hormones play a crucial role in brain function.
    • The integrity of the blood-cerebrospinal fluid (CSF) barrier is vital for maintaining brain homeostasis.

    Purpose of the Study:

    • To investigate thyroid hormone levels in the cerebrospinal fluid (CSF) of patients with chronic organic brain syndrome (OBS).
    • To compare CSF T4 and TSH levels in OBS patients with a control group.
    • To assess potential disruptions in the blood-CSF barrier in OBS.

    Main Methods:

    • Radioimmunoassay (RIA) was used to measure T4 and TSH levels.
    • CSF samples were collected from 35 OBS patients and a control group.

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  • Plasma T4 and TSH levels were also measured in OBS patients.

    • Main Results:

    • CSF T4 levels were significantly higher in 65% of OBS patients compared to controls (0.77 vs. 0-0.4 µg/100 ml, P<0.001).
    • CSF TSH levels were also significantly elevated in OBS patients (1.33 vs. 0-0.6 µU/ml, P<0.005).
    • Elevated hormone levels suggest a compromised blood-CSF barrier.

    Conclusions:

    • Patients with OBS exhibit significantly higher CSF levels of T4 and TSH.
    • These findings indicate a pathophysiological dysfunction of brain barriers in OBS.
    • The disruption of blood-CSF barriers may contribute to the neurological deficits observed in OBS.