Clinicopathological features of diabetic and nondiabetic renal diseases in type 2 diabetic patients with nephrotic-range proteinuria
| Autor: | Young Il Jo, Yang Gyun Kim, Ju Young Moon, Sang-Ho Lee, Hoon Young Choi, Tae Won Lee, Jin Sug Kim, Su Woong Jung, Hyeong Cheon Park, Chun Gyoo Ihm, Sang-Woong Han, Yu Ho Lee, Eunji Park, Kyung Hwan Jeong, Joo-Hark Yi, So Young Lee, Ki Pyo Kim, Dong Ho Yang |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Pathology Biopsy 030232 urology & nephrology Observational Study 030209 endocrinology & metabolism Disease Type 2 diabetes nondiabetic renal disease urologic and male genital diseases Kidney Gastroenterology Diabetic nephropathy 03 medical and health sciences 0302 clinical medicine renal biopsy Risk Factors Internal medicine Diabetes mellitus Prevalence Medicine Humans Diabetic Nephropathies Proteinuria medicine.diagnostic_test business.industry diabetic nephropathy General Medicine Middle Aged medicine.disease Diabetes Mellitus Type 2 ComputingMethodologies_DOCUMENTANDTEXTPROCESSING Female Renal biopsy type 2 diabetes medicine.symptom business Nephrotic syndrome Follow-Up Studies Research Article |
| Zdroj: | Medicine |
| ISSN: | 1536-5964 |
| Popis: | Supplemental Digital Content is available in the text Heavy proteinuria with or without features of nephrotic syndrome is associated with many primary and systemic diseases. For diabetic patients, distinguishing nondiabetic renal disease (NDRD) from diabetic nephropathy (DN) is important in choosing treatment modalities and determining renal prognosis. However, clinical relevance of heavy proteinuria is inconsistent with clinical DN assessments. This study investigated the clinicopathological features and renal outcomes of DN and NDRD in type 2 diabetic patients with nephrotic-range proteinuria. We enrolled 220 cases of type 2 diabetic patients who underwent renal biopsy. They were grouped according to the presence of nephritic-range proteinuria and pathological features. Baseline characteristics, laboratory findings, types of pathological diagnosis, and renal outcomes were analyzed in patients with heavy proteinuria. Upon kidney biopsy, 129 patients (58.6%) showed nephritic-range proteinuria. Patients with heavy proteinuria (an average urine protein-to-creatinine ratio of 10,008 ± 7307 mg/gCr) showed lower serum albumin levels and higher total cholesterol levels, but did not show any difference in age, duration of diabetes, renal function, or the presence of retinopathy compared with those with mild-to-moderate proteinuria (an average urine protein-to-creatinine ratio of 1581 ± 979 mg/gCr). Renal biopsy revealed that the prevalence of NDRD was 37.2% in patients with heavy proteinuria, which was significantly lower than that in patients with mild-to-moderate proteinuria (63.7%). The most common pathological types of NDRD were membranous nephropathy (41.7%), IgA nephropathy (14.6%), and minimal change disease (10.4%). NDRD patients showed lower prevalence of diabetic retinopathy and better kidney function irrespective of proteinuria. Immunosuppressive treatment was administered more frequently in patients with heavy proteinuria (56.3%) compared with patients with mild-to-moderate proteinuria (20%) because of the pathological differences according to the amount of proteinuria. Renal outcomes were significantly worse in patients with DN than in patients with NDRD. DN patients with heavy proteinuria exhibited different prevalence of NDRD and worse prognosis. Renal biopsy in type 2 diabetic patients should be more extensively considered to accurately diagnose NDRD, guide further management, and predict renal outcomes, especially in patients with nephrotic-range proteinuria. |
| Databáze: | OpenAIRE |
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