Abstract
Ochratoxin A (OTA) is a nephrotoxic mycotoxin considered to be the causal agent of the Balkan endemic nephropathy (BEN). In Tunisia, a chronic interstitial nephropathy (CIN) of unknown aetiology, resembling BEN, has been characterised wherein OTA seems to be implicated too. However, despite the considerable number of investigations conducted so far, the role of OTA in the outcome of this human nephropathy is still uncertain. In this study, an attempt is being made to consolidate the link between OTA and the Tunisian CIN of unknown aetiology. Blood OTA and β 2 -microglobulinuria levels were measured in several groups of healthy individuals and patients having different renal diseases of known and unknown aetiologies (100 nephropathy patients and 40 healthy subjects). The high blood OTA and β 2 -microglobulinuria levels seem to be strongly associated to the CIN of unknown aetiology. Our results support the involvement of this nephrotoxic agent in the outcome of this particular human nephropathy and underline furthermore the importance of β 2 -microglobulinuria in the characterization of this disease.
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