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Curr Eye Res. 1996 Mar;15(3):341-3.

High total TGF-beta 2 levels in normal human tears.

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  • 1Department of Ophthalmology, Kyoto Prefectural University of Medicine, Japan.

Abstract

Mature and total TGF-beta 2 levels were determined in normal human tears, from 37 volunteers, using a quantitative "sandwich' enzyme immunoassay technique. Since this ELISA method recognizes only mature TGF-beta 2, total TGF-beta 2 levels in tears were measured after acid activation. Aqueous humor samples from 9 patients with cataract were also tested as controls. Mature and total TGF-beta 2 in aqueous humor (AH) averaged 182 pg/ml and 737 pg/ml, respectively. The levels of mature TGF-beta 2 in normal human tears ranged from 36 to 71 pg/ml (mean: 55 pg/ml). And the levels of total TGF-beta 2 ranged from 3446 to 14910 pg/ml (mean: 7854 Pg/ml), a very high level. Percentage of mature TGF-beta 2 ranged 0.4 to 1.3% (mean: 0.9%). It is reported for the first time that there are very high levels of total TGF-beta 2 in normal human tears.

PMID:
8654116
[PubMed - indexed for MEDLINE]
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