GSE84780 Hyperactivation of Nrf2 in early tubular development induces nephrogenic diabetes insipidus

Contributors : Takafumi Suzuki ; Shiori Seki ; Keiichiro Hiramoto ; Eriko Naganuma ; Eri H Kobayashi ; Ayaka Yamaoka ; Liam Baird ; Nobuyuki Takahashi ; Hiroshi Sato ; Masayuki YamamotoSeries Type : Expression profiling by arrayOrganism : Mus musculusNF-E2-related factor-2 (Nrf2) regulates the cellular response to oxidative/electrophilic stresses, and loss of Keap1 increases the Nrf2 protein level. As Keap1-null mice die of esophageal hyperkeratosis, whole-body phenotypes of Nrf2 hyperactivation in adult animals remain to be delineated. Here we show that deleting esophageal Nrf2 in Keap1-null mice the mice survive until adulthood, but develop polyuria with low osmolality and bilateral hydronephrosis. This novel phenotype is to be attributable to defects in water reabsorption caused by a reduction in the level of the aquaporin 2 (AQP2) channel in the kidney. In line, renal tubular deletion of Keap1 generates symptoms of nephrogenic diabetes insipidus, demonstrating that Nrf2 activation in developing tubular cells causes a water reabsorption defect. The rescue of mice from the lethal first hit of Keap1 ablation serves as a useful tool to study novel functions of Nrf2.
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by array Mus musculus Source Type: research

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Neonatal brachial plexus palsy (NBPP) is a birth injury that can cause severe functional loss in the affected limb. The purpose of this study was to determine the temporal changes in the national incidence of this condition and whether associated risk factors have changed over time. Children born via vaginal delivery were identified in the Kids’ Inpatient Database (KID) from 1997 to 2012, and those with NBPP were identified. The trend in incidence and risk factors were assessed through the study period. The nationwide incidence of NBPP decreased during the study period. Infants with shoulder dystocia, fetal macrosomi...
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Source: Clinical Case Reports - Category: General Medicine Authors: Tags: CASE REPORT Source Type: research
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Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
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