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Lysozyme content of tears in normal subjects and in patients with external eye infections

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Abstract

We studied the lysozyme content of tears in 267 subjects (521 eyes), including 241 healthy subjects, 7 patients (14 eyes) with bilateral blepharitis, 8 patients (12 eyes) with conjunctivitis, and 11 patients (16 eyes) with keratitis. The concentration of lysozyme in the tears rises with age between childhood and maturity. The highest values were seen in the age group of 21–40 years, and a decrease of lysozyme concentration occurred with an increase in age from 30–40 years. The mean lysozyme content of tears was 1,768 μg/ml in halthy subjects; no significant differences occurred between the sexes. Patients with blepharitis, conjunctivitis, and keratitis had normal mean lysozyme content of tears. The tears of patients with herpes simplex keratitis had low lysozyme values.

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References

  • Avisar R, Menaché R, Rubinstein J, Machtey I, Savir H (1979) Lysozyme content of tears in patient with Sjögren's syndrome and rheumatoid arthritis. Am J Ophthalmol 87:148–151

    PubMed  Google Scholar 

  • Avisar R, Menaché R, Shaked P, Savir H (1981): Lysozyme content of tears in some external eye infections. Am J Ophthalmol 92:555–558

    PubMed  Google Scholar 

  • Bonavida B, Sapse AT (1968) Human tear lysozyme II. Quantitative determination with standard Schirmer strips. Am J Ophthalmol. 66:70–80

    PubMed  Google Scholar 

  • Erickson OF, Hatlen R, Berg M (1959) Industrial tear study: Filter-paper electrophoresis of tears with results of an industrial study from 1,000 specimens sent by mail. Am J Ophthalmol 47:499–509

    PubMed  Google Scholar 

  • Eylan E, Ronen D, Romano A, Smetana O (1977) Lysozyme tear level in patients with herpes simplex virus eye infection. Invest Ophthalmol Vis Sci 16:850–853

    PubMed  Google Scholar 

  • Horwitz BL, Christensen GR, Ritzman SR (1978) Diurnal profiles of tear lysozyme and gamma A globulin. Ann Ophthalmol 10:75–80

    PubMed  Google Scholar 

  • Klockars M, Reitamo S (1975) Tissue distribution of lysozyme in man. J Histochem Cytochem 23:932–940

    PubMed  Google Scholar 

  • Mackie IA, Seal DV (1976) Quantitative tear lysozyme assay in units of activity per microlitre. Br J Ophthalmol 60:70–74

    PubMed  Google Scholar 

  • Mackie IA, Seal DV (1981) The questionable dry eye. Br J Ophthalmol 65:2–9

    PubMed  Google Scholar 

  • Mackie IA, Seal DV, Pescod JM (1977) Beta-adrenergic receptor blocking drugs: tear lysozyme and immunological screening for adverse reaction. Br J Ophthalmol 61:354–359

    PubMed  Google Scholar 

  • Okawada N, Mizoguchi I, Ishiguro T (1979) Effects of photochemical air pollution on the human eye-concerning eye irritation, tear lysozyme and tear pH. Nagoya J Med Sci 41:9–20

    PubMed  Google Scholar 

  • Osserman EF, Lawlor DP (1966) Serum and urinary lysozyme (muramidase) in monocytic and monomyelocytic leukemia. J Exp Med 124:921–952

    Article  PubMed  Google Scholar 

  • Sapse AT, Bonavida B, Stone W Jr, Sercarz EE (1968) Human tear lysozyme III. Preliminary study on lysozyme levels in subjects with smog eye irritation. Am J Ophthalmol 66: 76–80

    PubMed  Google Scholar 

  • Seal DV, Mackie IA, Coakes RL, Farooqi B (1980) Quantitative tear lysozyme assay: a new technique for transporting specimens. Br J Ophthalmol 64:700–704

    PubMed  Google Scholar 

  • Selinger DS, Selinger RC, Reed WP (1979) Resistance to infection of the external eye: the role of tears. Surv Ophthalmol 24:33–38

    Article  PubMed  Google Scholar 

  • Sen DK, Sarin GS (1982) Immunoassay of tear lysozyme in conjunctival diseases. Br J Ophthalmol 66:732–735

    PubMed  Google Scholar 

  • Stuchell RN, Farris RL, Mandel ID (1981) Basal and reflex human tear analysis II. Chemical analysis: Lactoferrin and lysozyme. Ophthalmology (Rochester) 88:858–861

    Google Scholar 

  • Van Bijsterveld OP (1969) Diagnostic tests in the sicca syndrome. Arch Ophthalmol 82: 10–14

    PubMed  Google Scholar 

  • Van Haeringen NJ (1981) Clinical biochemistry of tears. Surv Ophthalmol 26:84–96

    Article  PubMed  Google Scholar 

  • Watson RR, Reyes MA, McMurray DN (1978) Influence of malnutrition on the concentration of IgA, lysozyme, amylase, and aminopeptidase in children's tears. Proc Soc Exp Biol Med 157: 215–219

    PubMed  Google Scholar 

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Saari, K.M., Aine, E., Posz, A. et al. Lysozyme content of tears in normal subjects and in patients with external eye infections. Graefe's Arch Clin Exp Ophthalmol 221, 86–88 (1983). https://doi.org/10.1007/BF02133813

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  • DOI: https://doi.org/10.1007/BF02133813

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