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  • Title: Glomerular solidification is associated with nephritis-related clinical parameters in IgA nephropathy.
    Author: Inoue T, Luo Y, Seto T, Suzuki H, Okada H.
    Journal: Ren Fail; 2019 Nov; 41(1):893-898. PubMed ID: 31557071.
    Abstract:
    Background: Two types of global glomerulosclerosis, glomerular obsolescence and solidification, have been identified. A clinicopathological correlation between these glomerular changes and hypertensive nephrosclerosis has been reported; however, clinicopathological correlations with other kidney diseases are unknown. The aim of this study was to evaluate the correlation between the two glomerulosclerosis types and the clinical IgA nephropathy presentation. Methods: A single center, cross-sectional study of patients with IgA nephropathy was performed. Correlations between glomerulosclerosis and body mass index, mean blood pressure, creatinine-based estimated glomerular filtration rate (eGFR), total cholesterol, urinary protein corrected by urinary creatinine, and anti-hypertensive agent use were investigated using univariate and multivariate analyses. Results: Overall, 116 patients were enrolled (male/female, 59/57; mean age, 40.5 ± 15.0 years). Separate analyses were performed for solidification and obsolescence glomerulosclerosis. Univariate analysis demonstrated a significant correlation between the percentage of solidification glomerulosclerosis and patient age, mean blood pressure, eGFR, and use of antihypertensive drugs. Multivariate analysis showed that only eGFR and use of antihypertensive drugs maintained their independent predictive value. The amount of urinary protein emerged as a significant factor based on the multivariate analysis. However, although the univariate analysis demonstrated a statistically significant correlation between the percentage of obsolescence and eGFR for obsolescence glomerulosclerosis, a multivariate analysis indicated that none of the factors maintained their independent predictive value. Conclusions: The incidence of solidification was better correlated with some nephritis-related clinical parameters compared with the incidence of obsolescence. The emergence of solidification may influence the clinical activities that are associated with IgA nephropathy.
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