Biomaterial Database

Tear IgE concentrations in allergic conjunctivitis. 1998

K Nomura, and E Takamura

Department of Ophthalmology, Tokyo Women's Medical College, Japan.

OBJECTIVE Tear IgE has been considered to play an important role in allergic conjunctivitis and the measurement of tear IgE concentrations can help to diagnose this condition. Locally produced IgE levels have been shown to be the largest contributor to the severity of allergic conjunctivitis. METHODS One hundred and thirteen allergic conjunctivitis patients (70 seasonal allergic conjunctivitis (SAC), 21 perennial allergic conjunctivitis (PAC), 22 vernal keratoconjunctivitis (VKC)), 14 bacterial conjunctivitis (BC) patients, 13 epidemic keratoconjunctivitis (EKC) patients and 18 normal controls were recruited. Tear samples were collected using the microcapillary method and tear IgE levels were measured using an immunoenzyme assay. RESULTS Tear IgE concentrations showed significant increases in the VKC (322.2 +/- 45.7 ng/ml), SAC (194.7 +/- 21.7 ng/ml) and PAC (134.8 +/- 23.1 ng/ml) groups when compared with controls (52.1 +/- 9.7 ng/ml, p < 0.01). No significant difference was found between EKC (97.2 +/- 11.7 ng/ml) and BC (92.6 +/- 13.8 ng/ml) groups and controls (p = 0.1). CONCLUSIONS Tear IgE concentrations showed a significant increase in allergic conjunctivitis patients when compared with controls. Our results suggest that measuring tear IgE concentrations can help to diagnose allergic conjunctivitis.

UI	MeSH Term	Description	Entries
D007073	Immunoglobulin E	An immunoglobulin associated with MAST CELLS. Overexpression has been associated with allergic hypersensitivity (HYPERSENSITIVITY, IMMEDIATE).	IgE
D007637	Keratoconjunctivitis	Simultaneous inflammation of the cornea and conjunctiva.	Keratoconjunctivitides
D008297	Male		Males
D011864	Radioimmunosorbent Test	Radioimmunoassay of proteins using antibody coupled to an immunosorbent.	Radioimmunosorbent Tests,Test, Radioimmunosorbent,Tests, Radioimmunosorbent
D003233	Conjunctivitis, Allergic	Conjunctivitis due to hypersensitivity to various allergens.	Allergic Conjunctivitis,Conjunctivitis, Atopic,Conjunctivitis, Giant Papillary,Conjunctivitis, Vernal,Keratoconjunctivitis, Vernal,Allergic Conjunctivitides,Atopic Conjunctivitides,Atopic Conjunctivitis,Conjunctivitides, Allergic,Conjunctivitides, Atopic,Conjunctivitides, Giant Papillary,Conjunctivitides, Vernal,Giant Papillary Conjunctivitides,Giant Papillary Conjunctivitis,Keratoconjunctivitides, Vernal,Papillary Conjunctivitides, Giant,Papillary Conjunctivitis, Giant,Vernal Conjunctivitides,Vernal Conjunctivitis,Vernal Keratoconjunctivitides,Vernal Keratoconjunctivitis
D003234	Conjunctivitis, Bacterial	Purulent infections of the conjunctiva by several species of gram-negative, gram-positive, or acid-fast organisms. Some of the more commonly found genera causing conjunctival infections are Haemophilus, Streptococcus, Neisseria, and Chlamydia.	Bacterial Conjunctivitis,Conjunctivitis, Mucopurulent,Conjunctivitis, Purulent,Bacterial Conjunctivitides,Conjunctivitides, Bacterial,Conjunctivitides, Mucopurulent,Conjunctivitides, Purulent,Mucopurulent Conjunctivitides,Mucopurulent Conjunctivitis,Purulent Conjunctivitides,Purulent Conjunctivitis
D003937	Diagnosis, Differential	Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures.	Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D004797	Enzyme-Linked Immunosorbent Assay	An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed.	ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man