Taurine Transporter Gene Expression in Mononuclear Blood Cells of Type 1 Diabetes Patients
| Autor: | Zaleida Napoli, Giuseppe Seghieri, Loria Bianchi, Roberto Anichini, Alessandra De Bellis, Ilaria Campesi, Ciriaco Carru, Stefano Occhioni, Angelo Zinellu, Flavia Franconi |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Journal of Diabetes Research, Vol 2016 (2016) |
| Druh dokumentu: | article |
| ISSN: | 2314-6745 2314-6753 |
| DOI: | 10.1155/2016/7313162 |
| Popis: | Background. Taurine transporter gene expression (RNA-TauT) has a role in retinal cell function and is modulated in vitro and in vivo by hyperglycemia and/or oxidative stress. This study was aimed at testing whether RNA-TauT gene expression is modified in blood mononuclear peripheral cells (MPCs) of type 1 diabetic patients, is related to plasma markers of oxidative stress or endothelial dysfunction, or, finally, is related to presence of retinopathy. Methods. RNA-TauT was measured in MPCs by real-time PCR-analysis in 35 type 1 diabetic patients and in 33 age- and sex-matched controls, additionally measuring plasma and cell taurine and markers of oxidative stress and endothelial dysfunction. Results. RNA-TauT, expressed as 2-ΔΔCt, was significantly higher in MPCs of type 1 diabetic patients than in controls [median (interquartile range): 1.32(0.31) versus 1.00(0.15); P=0.01]. In diabetic patients RNA-TauT was related to HbA1c (r=0.42; P=0.01) and inversely to plasma homocysteine (r=-0.39; P=0.02) being additionally significantly higher in MPCs of patients without retinopathy [(n=22); 1.36(0.34)] compared to those with retinopathy [(n=13); 1.16(0.20)], independently from HbA1c or diabetes duration. Conclusions. RNA-TauT gene expression is significantly upregulated in MPCs of type 1 diabetes patients and is related to HbA1c levels and inversely to plasma homocysteine. Finally, in diabetes patients, RNA-TauT upregulation seems to be blunted in patients with retinopathy independently of their metabolic control or longer diabetes duration. |
| Databáze: | Directory of Open Access Journals |
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