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[Post-proline hydrolysis activities in cerebrospinal fluid].

G Küllertz, W Kallenbach, G Küllertz

    Zeitschrift Fur Medizinische Laboratoriumsdiagnostik
    |January 1, 1989
    PubMed
    Summary

    High post-proline hydrolytic activity in cerebrospinal fluid correlates with bacterial meningitis. This activity may originate from lymphocytes, brain tissue, or bacteria, offering insights into central nervous system infections.

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    Biochemical and biophysical research communications·1995

    Area of Science:

    • Biochemistry
    • Neuroscience
    • Microbiology

    Context:

    • Post-proline hydrolytic activity is present in human bodily fluids.
    • Cerebrospinal fluid (CSF) contains enzymes that cleave proline-containing peptides.

    Purpose:

    • To characterize post-proline hydrolytic activity in human CSF.
    • To investigate the correlation between this activity and cerebral diseases, particularly bacterial meningitis.

    Summary:

    • Electrophoretic and chromatographic methods identified two proteolytic activity peaks in human CSF, one matching dipeptidylpeptidase IV (DPP IV).
    • Elevated CSF post-proline hydrolytic activity was observed in 650 patients with cerebral diseases, strongly coinciding with bacterial meningitis.
    • Isolated bacteria from CSF also exhibited high post-proline cleaving hydrolase activity, suggesting a microbial contribution.

    Impact:

    • This research links specific enzyme activity in CSF to bacterial meningitis.
    • Identifies potential sources of post-proline hydrolytic activity in the central nervous system, including lymphocytes, brain parenchyma, and bacteria.
    • Provides a basis for further investigation into diagnostic markers for neurological infections.

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