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    Correlation between proteinuria level and renal morphology with special reference to electron microscopy in kidney donors
    (Taylor & Francis Ltd, 2008) Nacar, Ahmet; Karabay, Guelten; Unlukal, Nejat; Yazici, Canan; Ozdemir, Handan
    The aims of this study were to evaluate whether there is a correlation between protein level in urine and renal morphology in kidney transplant donors, as well as to detect the role of electron microscopy. For this purpose, kidney biopsies of 10 donors with urine protein levels were evaluated. Seven patients were female and three were male. Two had physiologic proteinuria (< 150 mg/24h), four had non-significant proteinuria (150-300 mg/24h), and three had significant (> 300 mg/24h) proteinuria. Serum creatinine levels were in normal ranges in all patients except for one who had a slight increase (1.76 mg/dL). Seven cases were reported to have normal or nonspecific light microscopic findings. Two of those seven cases had physiologic proteinuria, three had nonsignificant proteinuria, and two had significant proteinuria. One case had IgA nephropathy with significant proteinuria. One donor had early stage focal segmental glomerulosclerosis with non-significant proteinuria, and one donor had focal interstitial fibrosis with normal urine protein level. There was no statistically significant difference between score means of ultrastructural morphology of the six patients with same patients' light microscopic results and score means of light microscopic results with urine protein levels of all patients. However, there was a significant difference between score means of ultrastructural morphology with urine protein levels of those six patients. In conclusion, urine protein levels and light microscopic findings did not always reflect the detailed morphology alone and together. Therefore, combining with electron microscopic examination could be more beneficial in relieving problems occurring in long-term prognoses.