Cell volume regulation in the proximal tubule of rat kidney proximal tubule cell volume regulation [PDF]
We developed a dynamic model of a rat proximal convoluted tubule cell in order to investigate cell volume regulation mechanisms in this nephron segment.
Edwards, Aurelie, Layton, Anita T.
core +6 more sources
Iron Is Filtered by the Kidney and Is Reabsorbed by the Proximal Tubule [PDF]
The aim of this study was to determine the iron (Fe) concentration profile within the lumen of the S2 renal proximal convoluted tubule (PCT) and to resolve whether this nephron segment transported Fe. To do this, we performed in vivo renal micropuncture on Wistar rats, collected PCT tubular fluid from superficial nephrons, and measured Fe concentration.
Wareing, Mark, Smith, Craig P.
openaire +4 more sources
Heat-shock mediated overexpression of HNF1β mutations has differential effects on gene expression in the Xenopus pronephric kidney. [PDF]
The transcription factor HNF1B, encoded by the TCF2 gene, plays an important role in the organogenesis of vertebrates. In humans, heterozygous mutations of HNF1B are associated with several diseases, such as pancreatic β-cell dysfunction leading to ...
Brändli, André W.+6 more
core +13 more sources
AQP1 expression in the proximal tubule of diabetic rat kidney [PDF]
Polyuria is a hallmark symptom and the first clinical manifestation of diabetes mellitus (DM). The glucose that remains in renal tubules was proposed to produce an osmotic effect resulting in polyuria. Although water is reabsorbed in proximal tubules through an aquaporin-1 (AQP1) dependent mechanism, AQP1 role in the genesis of polyuria is unknown ...
Erika A. Seyahian+3 more
openaire +5 more sources
Visualization of Calcium Dynamics in Kidney Proximal Tubules [PDF]
Intrarenal changes in cytoplasmic calcium levels have a key role in determining pathologic and pharmacologic responses in major kidney diseases. However, cell-specific delivery of calcium-sensitive probes in vivo remains problematic. We generated a transgenic rat stably expressing the green fluorescent protein-calmodulin-based genetically encoded ...
Szebényi, Kornélia+13 more
openaire +4 more sources
Mechanosensory function of microvilli of the kidney proximal tubule [PDF]
Normal variations in glomerular filtration induce proportional changes in proximal tubule Na + reabsorption. This “glomerulotubular balance” derives from flow dependence of Na + uptake across luminal cell membranes; however, the underlying physical mechanism is unknown. Our hypothesis is that
Tong Wang+5 more
openaire +3 more sources
Current Perspective on the Location and Function of Gamma- Aminobutyric Acid (GABA) and its Metabolic Partners in the Kidney. [PDF]
Gamma-aminobutyric acid (GABA) is an inhibitory neurotransmitter located in the mammalian central nervous system, which binds to GABAA and GABAB receptors to mediate its neurological effects.
Dunn, Kadeshia+3 more
core +1 more source
Inhalation of mercury vapor can cause the toxic effects on rat kidney [PDF]
Dental amalgam has been used in dentistry as a filling material. The filler comprises mercury (Hg). It is considered one of the most important and widespread environmental pollutants, which poses a serious potential threat for the humans and animals ...
Akgul, Hayati Murat+5 more
core +1 more source
Colocalization of GLUT2 glucose transporter, sodium/glucose cotransporter, and gamma-glutamyl transpeptidase in rat kidney with double-peroxidase immunocytochemistry. [PDF]
Glucose is reabsorbed from the glomerular filtrate in the proximal segment of the renal tubule in two stages. The first stage is uphill transport across the brush border membrane by Na(+)-glucose cotransport and the second stage is downhill transport ...
Cramer, SC+3 more
core +1 more source
Notch activates Wnt-4 signalling to control medio-lateral patterning of the pronephros [PDF]
Previous studies have highlighted a role for the Notch signalling pathway during pronephrogenesis in the amphibian Xenopus laevis, and in nephron development in the mammalian metanephros, yet a mechanism for this function remains elusive.
Jones, E. A., Naylor, Richard William
core +1 more source