Deprecated: Implicit conversion from float 225.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 225.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 225.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 225.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 225.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 225.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 259.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 259.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 259.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 259.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 259.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 259.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27285824
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2016 ; 11
(6
): e0157148
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Morphometry Predicts Early GFR Change in Primary Proteinuric Glomerulopathies: A
Longitudinal Cohort Study Using Generalized Estimating Equations
#MMPMID27285824
Lemley KV
; Bagnasco SM
; Nast CC
; Barisoni L
; Conway CM
; Hewitt SM
; Song PX
PLoS One
2016[]; 11
(6
): e0157148
PMID27285824
show ga
OBJECTIVE: Most predictive models of kidney disease progression have not
incorporated structural data. If structural variables have been used in models,
they have generally been only semi-quantitative. METHODS: We examined the
predictive utility of quantitative structural parameters measured on the digital
images of baseline kidney biopsies from the NEPTUNE study of primary proteinuric
glomerulopathies. These variables were included in longitudinal statistical
models predicting the change in estimated glomerular filtration rate (eGFR) over
up to 55 months of follow-up. RESULTS: The participants were fifty-six pediatric
and adult subjects from the NEPTUNE longitudinal cohort study who had
measurements made on their digital biopsy images; 25% were African-American, 70%
were male and 39% were children; 25 had focal segmental glomerular sclerosis, 19
had minimal change disease, and 12 had membranous nephropathy. We considered four
different sets of candidate predictors, each including four quantitative
structural variables (for example, mean glomerular tuft area, cortical density of
patent glomeruli and two of the principal components from the correlation matrix
of six fractional cortical areas-interstitium, atrophic tubule, intact tubule,
blood vessel, sclerotic glomerulus, and patent glomerulus) along with 13
potentially confounding demographic and clinical variables (such as race, age,
diagnosis, and baseline eGFR, quantitative proteinuria and BMI). We used
longitudinal linear models based on these 17 variables to predict the change in
eGFR over up to 55 months. All 4 models had a leave-one-out cross-validated R2 of
about 62%. CONCLUSIONS: Several combinations of quantitative structural variables
were significantly and strongly associated with changes in eGFR. The structural
variables were generally stronger than any of the confounding variables, other
than baseline eGFR. Our findings suggest that quantitative assessment of
diagnostic renal biopsies may play a role in estimating the baseline risk of
succeeding loss of renal function in future clinical studies, and possibly in
clinical practice.