Results 21 to 30 of about 93,932 (331)

3D proximal tubule-on-chip model derived from kidney organoids with improved drug uptake

open access: yesScientific Reports, 2022
Three-dimensional, organ-on-chip models that recapitulate kidney tissue are needed for drug screening and disease modeling. Here, we report a method for creating a perfusable 3D proximal tubule model composed of epithelial cells isolated from kidney ...
Jeffrey O. Aceves   +8 more
doaj   +1 more source

Pacsin2 is required for endocytosis in the zebrafish pronephric tubule

open access: yesBiology Open, 2022
Endocytosis mediates the cellular uptake of numerous molecules from the extracellular space and is a fundamentally important process. In the renal proximal tubule, the scavenger receptor megalin and its co-receptor cubilin mediate endocytosis of low ...
Joseph Morgan   +4 more
doaj   +1 more source

Regulation of phosphate transport in proximal tubules [PDF]

open access: yesPflügers Archiv - European Journal of Physiology, 2008
Homeostasis of inorganic phosphate (P(i)) is primarily an affair of the kidneys. Reabsorption of the bulk of filtered P(i) occurs along the renal proximal tubule and is initiated by apically localized Na(+)-dependent P(i) cotransporters. Tubular P(i) reabsorption and therefore renal excretion of P(i) is controlled by a number of hormones, including ...
Biber, J   +3 more
openaire   +5 more sources

The Fanconi syndrome of cystinosis: insights into the pathophysiology

open access: yesThe Turkish Journal of Pediatrics, 2002
Cystinosis is a lysosomal storage disease, and is one of the most common causes of the Fanconi syndrome. In vitro studies of the cystine-loaded tubule provided insights into the pathophysiology of the proximal tubular defect.
Abdullah Sakarcan
doaj   +1 more source

Ontogeny of proximal tubule acidification

open access: yesKidney International, 1995
The proximal tubule is responsible for the reabsorption of 80% of the filtered load of bicarbonate in adults. Proximal tubule bicarbonate reabsorption is affected by a number of hormones, acid-base balance, and the extracellular fluid volume status [1]. The adult proximal tubule thus plays a central role in acid-base homeostasis.
Michel Baum, Raymond Quigley
openaire   +3 more sources

A modular and reusable model of epithelial transport in the proximal convoluted tubule.

open access: yesPLoS ONE, 2022
We review a collection of published renal epithelial transport models, from which we build a consistent and reusable mathematical model able to reproduce many observations and predictions from the literature.
Leyla Noroozbabaee   +3 more
doaj   +1 more source

The role of renal proximal tubule transport in the regulation of blood pressure

open access: yesKidney Research and Clinical Practice, 2017
The electrogenic sodium/bicarbonate cotransporter 1 (NBCe1) on the basolateral side of the renal proximal tubule plays a pivotal role in systemic acid-base homeostasis.
Shoko Horita   +6 more
doaj   +1 more source

Adaptive changes in GFR, tubular morphology, and transport in subtotal nephrectomized kidneys: modeling and analysis [PDF]

open access: yes, 2017
Removal of renal mass stimulates anatomical and functional adaptations in the surviving nephrons, including elevations in single-nephron glomerular filtration rate (SNGFR) and tubular hypertrophy. A goal of this study is to assess the extent to which the
Edwards, Aurelie   +2 more
core   +1 more source

Transcriptional profiling of the zebrafish proximal tubule [PDF]

open access: yesAmerican Journal of Physiology-Renal Physiology, 2019
The hepatocyte nuclear factor-1β (Hnf1b) transcription factor is a key regulator of kidney tubule formation and is associated with a syndrome of renal cysts and early onset diabetes. To further our understanding of Hnf1b in the developing zebrafish kidney, we performed RNA sequencing analysis of proximal tubules from hnf1b-deficient larvae.
Veronika Sander   +6 more
openaire   +4 more sources

Peroxiredoxin1, a novel regulator of pronephros development, influences retinoic acid and Wnt signaling by controlling ROS levels

open access: yesScientific Reports, 2017
Peroxiredoxin1 (Prdx1) is an antioxidant enzyme belonging to the peroxiredoxin family of proteins. Prdx1 catalyzes the reduction of H2O2 and alkyl hydroperoxide and plays an important role in different biological processes.
Soomin Chae   +19 more
doaj   +1 more source

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