tokens: Maleate - induced renal injury included increase in renal vascular resistance and in the urinary excretion of total protein , glucose , sodium , neutrophil gelatinase - associated lipocalin ( NGAL ) and N - acetyl b - D - glucosaminidase ( NAG ) , upregulation of kidney injury molecule ( KIM ) - 1 , decrease in renal blood flow and claudin - 2 expression besides of necrosis and apoptosis of tubular cells on 24 h .