Open AccessLevel of VEGF-A and interleukin 6 in lacrimal fluid of patients with diabetic retinopathy
Author(s) -
Christelle Domngang,
Armelle Lowe Noutchie,
Pascal Djamen Chuisseu,
Freddy Nemg Simo,
Borris Tietche Galani,
Pamela Tumchou Mekieje,
Faustin Ulrich Nzounji,
E. Djahmeni,
Magellan Guewo-Fokeng,
Giles Kagmeni,
Assumpta Lucienne Bella,
Eugène Sobngwi
Publication year - 2020
Publication title -
international journal of biological and chemical sciences
Language(s) - English
Resource type - Journals
eISSN - 1997-342X
pISSN - 1991-8631
DOI - 10.4314/ijbcs.v14i3.2
Subject(s) - medicine , diabetic retinopathy , diabetes mellitus , ophthalmology , retinopathy , tears , vascular endothelial growth factor , gastroenterology , vegf receptors , surgery , endocrinology
Diabetic retinopathy (DR) is an ocular manifestation characterized by microvascular complications. The aim of this study was to investigate the relationship between diabetic retinopathy (DR) and two lacrimal angiogenic cytokines, interleukin-6 (Il-6) and vascular endothelial growth factor-A (VEGF-A). A cross-sectional study was conducted at Yaoundé Central Hospital from February,1 to June, 15, 2019. Twenty-six diabetic patients with retinopathy and 55 diabetics without retinopathy were enrolled. Tears were collected with Schirmer strips. The concentrations of VEGF-A and Il-6 were determined by the ELISA test. Statistical analysis was performed using Epi Data version 7.1.5.2. and GraphPad 5.0. The mean VEGF-A concentration was 163.4 ± 45.1 and 149± 81.8 pg/ml in patients with and without DR respectively (p= 0.292) while tear Il-6 level was 118.5±103 and 119±79.43 pg/ml in patients with and without DR respectively (p= 0.497). The mean tear VEGF level was 165.2 ± 76.10 and 153.50 ± 57.94 pg/mL in patients with and without diabetic maculopathy (DM) respectively (p=0.343) while tear Il-6 level was significantly lower in DM (54.92±32.68) compared to patients without DM (159.10±89.78) (p=0.047). Tear Il-6 level was significantly low in patients with DM. There was no association between the 2 lacrimal biomarkers and diabetic retinopathy. Further analysis is needed for this type of screening in diabetic patients.Keywords: eye, retina, tear, diabetes, biomarker; cytokine.