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Prostaglandins and glaucoma.

A M Wyllie, J H Wyllie

    British Medical Journal
    |September 11, 1971
    PubMed
    Summary
    This summary is machine-generated.

    Human aqueous humor contains prostaglandin E(1), a substance that contracts stomach muscles. This substance was found in higher concentrations in open-angle glaucoma patients, suggesting a role in the disease.

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    Area of Science:

    • Ophthalmology
    • Pharmacology
    • Biochemistry

    Background:

    • Human aqueous humour contains bioactive substances.
    • Open-angle glaucoma is a leading cause of blindness.
    • Prostaglandins are implicated in various physiological processes.

    Purpose of the Study:

    • To identify and characterize substances in human aqueous humour that affect smooth muscle.
    • To investigate potential differences in these substances between glaucoma patients and controls.
    • To explore the role of prostaglandin E(1) in open-angle glaucoma aetiology.

    Main Methods:

    • Rat stomach strip bioassay to measure contractile activity.
    • Pharmacological characterization of the active substance.
    • Chromatographic analysis of aqueous humour from cadavers.

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    Main Results:

    • A substance causing rat stomach strip contraction was identified in human aqueous humour.
    • The mean activity of this substance was significantly higher in open-angle glaucoma specimens compared to cataract specimens.
    • Pharmacological and chromatographic studies indicated the active substance is prostaglandin E(1).

    Conclusions:

    • Prostaglandin E(1) is present in human aqueous humour.
    • Elevated levels of prostaglandin E(1) in aqueous humour may be associated with open-angle glaucoma.
    • Prostaglandin E(1) may contribute to the pathogenesis of open-angle glaucoma.