How histopathological diagnosis interacts with kidney ultrasound parameters and glomerular filtration rate.

The evaluation of estimated GFR (eGFR) is a pivotal staging step in patients with chronic kidney disease (CKD), and renal ultrasound plays an important role in diagnosis, prognosis and progression of CKD. The interaction between histopathological diagnosis and ultrasound parameters in eGFR determination has not been fully investigated yet. The study examined the results of native kidney biopsies performed in 48 Italian centers between 2012 and 2020.

Cyclosporin-induced hypertension is associated with the up-regulation of Na+-K+-2Cl- cotransporter (NKCC2).

Background: The use of cyclosporin A (CsA) is hampered by the development of nephrotoxicity including hypertension, which is partially dependent on renal sodium retention. To address this issue, we have investigated in vivo sodium reabsorption in different nephron segments of CsA-treated rats through micropuncture study coupled to expression analyses of sodium transporters. To translate the findings in rats to human, kidney-transplanted patients having CsA treatment were enrolled in the study.

Next-Generation Sequencing (NGS) Analysis Illustrates the Phenotypic Variability of Collagen Type IV Nephropathies.

Mutations in cause a spectrum of glomerular disorders, including thin basement membrane nephropathy (TBMN) and Alport syndrome (AS). The wide application of next-generation sequencing (NGS) in the last few years has revealed that mutations in these genes are not limited to these clinical entities. In this study, 176 individuals with a clinical diagnosis of inherited kidney disorders underwent an NGS-based analysis to address the underlying cause; those who changed or perfected the clinical diagnosis after molecular analysis were selected.

[Methods for calculating the number of nephrons from ultrasound scans and kidney biopsies for nephrologists' use].

The interest in determining the number of nephrons in the kidney dates back to the 1960s, when an influential laboratory method for determining ex vivo the number of nephrons in the kidneys was described by Bricker. Over the years, various methods have been developed to estimate the number of nephrons in living beings as accurately as possible. These modern methods combine data such as the glomerular density, the percentage of glomeruli in sclerosis calculated from biopsy samples, and the kidney volume, which can be precisely estimated from magnetic resonance, CT scan, or specific ultrasound methods.

LIAISON Calprotectin for the prediction of relapse in quiescent ulcerative colitis: The EuReCa study.

Introduction: Fecal calprotectin (FC) is established as a diagnostic marker to differentiate between inflammatory bowel diseases and non-inflammatory conditions. Furthermore, it may be effective in monitoring response to treatment, and to predict relapse during maintenance therapy.

Design: This was a prospective longitudinal study carried out in Italy, France and Spain.