腎損傷分子-1在成人過敏性紫癜性腎炎患者的表達及其意義
[Abstract]:The research background and target renal injury molecule-1 (KIM-1) is a novel type I transmembrane glycoprotein, which is only expressed in normal renal tissue, but KIM-1 can be expressed on the apical membrane of the proximal tubular epithelial cells of the patients with acute kidney injury and chronic kidney disease. Many studies have demonstrated that the extracellular functional area of KIM-1 can be interpreted into urine, and KIM-1 can be used as a marker for proximal renal tubular injury. The recent study found that KIM-1 is significantly elevated in the serum of patients with type 1 diabetic nephropathy, and the increase in serum KIM-1 can predict the risk of progressive renal function decline and progression to end-stage renal disease in patients with type 1 diabetic nephropathy. The purpose of this study was to explore the relationship between the expression of urine, renal tissue and serum KIM-1 in the patients with Henoch-Schonlein-Schonlein purpura nephritis and its relationship with clinical and renal pathological changes. To compare the sensitivity and specificity of urine and serum KIM-1 in the evaluation of the renal pathological damage in the patients with Henoch-Schonlein-Schonlein purpura nephritis, and to find non-invasive biomarkers that can reflect the pathological changes of the kidney and the prognosis of the kidney, so as to evaluate the condition of the patient and to guide the treatment. The research methods were included in 35 cases of adult allergic purpura nephritis,35 cases of adult allergic purpura (non-nephritis) and 20 cases of healthy physical examination, and the patients were followed up to date (about 2-3 years). collecting 5 ml of the morning urine and the fasting blood of the subjects in each group, collecting the supernatant, respectively detecting the KIM-1 expression amount in the urine and the serum according to the enzyme-linked immunosorbent assay and the flow fluorescence detection technology, The expression of KIM-1 in urine was expressed by the concentration ratio of KIM-1 and Cr (KIM-1/ Cr). The renal biopsy tissues of patients with Henoch-Schonlein purpura nephritis were collected, and the renal adjacent tissues of the renal cell carcinoma patients were collected as normal controls, and the normal pathological staining and the immunohistochemical staining of the KIM-1 were performed, and the renal pathological lesions and the kidney KIM-1 expression line semi-quantitative scores of the patients with the adult allergic purpura nephritis were evaluated. The relationship between the expression of KIM-1 in urine, kidney and serum of patients with Henoch-Schonlein purpura nephritis and the pathological index of the kidney was analyzed, and the relationship between the indexes of the patients with Henoch-Schonlein purpura nephritis and the prognosis of the kidney was analyzed. Results Compared with the control group, the expression of KIM-1 in the urine, kidney and serum of the patients with Henoch-Schonlein Purpura was significantly higher, and the expression of KIM-1 in the urine and the expression of KIM-1 in the kidney had a good correlation. In the adult Henoch-Schonlein purpura nephritis group, the expression of KIM-1 in the urine and the kidney was positively correlated with the blood urea nitrogen and the urinary albumin muscle-ratio (ACR), and negatively correlated with the glomerular filtration rate after the baseline and follow-up of 2-3 years. There was no significant correlation with the rate of glomerular filtration rate after 2-3 years of follow-up; serum KIM-1 and blood urea nitrogen, cystatin C and urine ACR were positively correlated; the expression of KIM-1 in the urine and the kidney was significantly correlated with the renal interstitial inflammation index and the tubulointerstitial chronic index after single-factor analysis. The results showed that only the expression of KIM-1 in the urine and the activity index of the renal capillary, the inflammatory index of the renal interstitial and the chronic index of the tubulointerstitial fibrosis were positively correlated. The expression of KIM-1 in urine predicts that the area of KIM-1 is 0.910 under the characteristic curve, which is better than that of eGFR, urinary ACR, blood myostatin, blood urea nitrogen and cystatin C. The study found that KIM-1 is in the urine of patients with Henoch-Schonlein purpura nephritis in adults. The expression of KIM-1 in urine can better reflect the expression of KIM-1 in the renal tissue of adult patients with Henoch-Schonlein purpura nephritis and the renal tubulointerstitial damage compared with the serum KIM-1, and the detection of KIM-1 in the urine can help the clinician to assess the renal damage of the patient. Instruct the treatment.
【學位授予單位】:山東大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:R692.34
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