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Related Experiment Videos

[Tear lactoferrin in keratoconjunctivitis sicca].

F R Hu, T H Wang, L L Lin

    Taiwan Yi Xue Hui Za Zhi. Journal of the Formosan Medical Association
    |April 1, 1989
    PubMed
    Summary
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    Tear lactoferrin measurement offers a simple, highly specific diagnostic tool for dry eye disease (keratoconjunctivitis sicca). This method shows significant differences between healthy and affected individuals, aiding early diagnosis.

    Area of Science:

    • Ophthalmology
    • Biochemistry

    Context:

    • Keratoconjunctivitis sicca (dry eye) diagnosis is challenging due to limitations in current tests.
    • Lacrimal gland function is key, but objective, reliable diagnostic tests are lacking.
    • Tear lactoferrin concentration correlates with lacrimal gland activity.

    Purpose:

    • To evaluate the diagnostic value of tear lactoferrin measurement for keratoconjunctivitis sicca.
    • To compare lactoferrin measurement with established dry eye diagnostic tests.
    • To assess the specificity and technical simplicity of the lactoferrin assay.

    Summary:

    • Tear lactoferrin levels were measured in 60 healthy eyes and 56 eyes with keratoconjunctivitis sicca using a "Lactoplate" assay.
    • Average lactoferrin concentration was significantly lower in the dry eye group (1.4 mg/ml) compared to the normal group (1.9 mg/ml).

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  • Lactoferrin measurement demonstrated the highest specificity among the tested diagnostic methods (Schirmer's tests, tear film break-up time, rose bengal stain).

    • Impact:

    • Lactoferrin measurement provides a valuable, objective tool for the early and accurate diagnosis of dry eye disease.
    • Its technical simplicity and high specificity enhance diagnostic capabilities in clinical settings.
    • This assay can potentially improve patient management and outcomes for keratoconjunctivitis sicca.