A novel and innovative paper-based analytical device for assessing tear lactoferrin of dry eye patients

Hideki Sonobe, Yoko Ogawa, Kentaro Yamada, Eisuke Shimizu, Yuichi Uchino, Mizuka Kamoi, Yumiko Saijo, Mio Yamane, Daniel Citterio, Koji Suzuki, Kazuo Tsubota

研究成果: Review article査読

6 被引用数 (Scopus)

抄録

Purpose: To elucidate the correlation between lactoferrin concentration in the tear film and signs and symptoms of severe dry eye disease (DED) using a novel microfluidic paper-based analytical device (μPAD) and enzyme-linked immunosorbent assay (ELISA). Methods: Twenty-four patients were recruited at the Keio University Hospital. Using a novel μPAD, lactoferrin concentrations were measured in 4 patients with GVHD-related DED, 3 patients with other types of DED and 2 controls (Group A). For validation by ELISA, 22 patients (7 patients from Group A) comprising 9 patients with GVHD-related DED, 6 patients with other types of DED and 7 controls were examined (Group B). The link between lactoferrin concentration and clinical data about the severity of aqueous tear deficient DED was also investigated by both μPAD and ELISA. Results: The lactoferrin concentration in tear fluid of the DED patients was positively correlated between μPAD and ELISA (p = 0.006, r = 0.886). The tear fluid of the GVHD patients showed low or undetectable lactoferrin concentration. Analysis by ELISA demonstrated that lactoferrin concentrations in the tear film from the GVHD patients were significantly lower than those from the non-GVHD patients (p = 0.010576). ELISA revealed lactoferrin concentration correlated with the value of Schirmer test and tear film breakup time, whereas it was inversely correlated with OSDI, fluorescein and rose bengal scores. Conclusions: The novel μPAD may pave the way for measuring lactoferrin concentration in tear fluid from DED patients. Our results suggested that lactoferrin concentration in tear fluid reflect the severity of DED.

本文言語English
ページ(範囲)160-166
ページ数7
ジャーナルOcular Surface
17
1
DOI
出版ステータスPublished - 2019 1

ASJC Scopus subject areas

  • Ophthalmology

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