Results 31 to 40 of about 666,834 (274)

Paracellular transport through healthy and cystic fibrosis bronchial epithelial cell lines--do we have a proper model? [PDF]

open access: yesPLoS ONE, 2014
It has been reported recently that the cystic fibrosis transmembrane conductance regulator (CFTR) besides transcellular chloride transport, also controls the paracellular permeability of bronchial epithelium.
Natalia Molenda   +5 more
doaj   +1 more source

Claudin-18 Loss Alters Transcellular Chloride Flux but not Tight Junction Ion Selectivity in Gastric Epithelial CellsSummary

open access: yesCellular and Molecular Gastroenterology and Hepatology, 2021
Background & Aims: Tight junctions form a barrier to the paracellular passage of luminal antigens. Although most tight junction proteins reside within the apical tight junction complex, claudin-18 localizes mainly to the basolateral membrane where ...
Tyler J. Caron   +9 more
doaj   +1 more source

Leucokinin Increases Paracellular Permeability in Insect Malpighian Tubules [PDF]

open access: yesJournal of Experimental Biology, 1996
ABSTRACT There are two major transport pathways across epithelia: a transcellular pathway through cells and a paracellular pathway between cells. Previous electrophysiological studies in mosquito Malpighian tubules suggested that the neuropeptide leucokinin-VIII (LK-VIII) increases the chloride permeability of the paracellular pathway ...
, Wang   +3 more
openaire   +2 more sources

Capacity for absorption of water-soluble secondary metabolites greater in birds than in rodents. [PDF]

open access: yesPLoS ONE, 2012
Plant secondary metabolites (SMs) are pervasive in animal foods and potentially influence feeding behavior, interspecies interactions, and the distribution and abundance of animals.
William H Karasov   +5 more
doaj   +1 more source

Fecal and Circulating Biomarkers for the Non-Invasive Assessment of Intestinal Permeability

open access: yesDiagnostics, 2023
The study of intestinal permeability is gaining growing interest due to its relevance in the onset and progression of several gastrointestinal and non-gastrointestinal diseases.
Nuria Perez-Diaz-del-Campo   +3 more
doaj   +1 more source

Differential effects of TNF (TNFSF2) and IFN-γ on intestinal epithelial cell morphogenesis and barrier function in three-dimensional culture. [PDF]

open access: yesPLoS ONE, 2011
BackgroundThe cytokines TNF (TNFSF2) and IFNγ are important mediators of inflammatory bowel diseases and contribute to enhanced intestinal epithelial permeability by stimulating apoptosis and/or disrupting tight junctions.
Kati Juuti-Uusitalo   +7 more
doaj   +1 more source

Thyroid hormone modulates rabbit proximal straight tubule paracellular permeability [PDF]

open access: yesAmerican Journal of Physiology-Renal Physiology, 2004
Proximal straight tubules (PST) from both neonatal and hypothyroid adult rabbits have a lower rate of passive volume absorption when perfused with a high-chloride solution simulating late proximal tubular fluid than adult rabbit PST. We hypothesized that the maturational increase in serum thyroid hormone levels mediates the developmental changes in ...
Michel, Baum, Raymond, Quigley
openaire   +2 more sources

A fixed combination of probiotics and herbal extracts attenuates intestinal barrier dysfunction from inflammatory stress in an in vitro model using Caco-2 cells. [PDF]

open access: yes, 2019
Background: Inflammatory Bowel Diseases (IBD), are considered a growing global disease, with about ten million people being affected worldwide. Maintenance of intestinal barrier integrity is crucial for preventing IBD onset and exacerbations. Some recent
Biagi, M   +8 more
core   +1 more source

Nitric oxide enhances paracellular permeability of opossum kidney cells [PDF]

open access: yesKidney International, 1999
Nitric oxide (NO) has been shown to be a paracrine/autocrine regulator of proximal tubular transport. In this study, we investigated the effect of NO on the paracellular permeability of opossum kidney (OK) cells, a proximal tubule cell line that possesses a leaky paracellular pathway resembling that of the in vivo proximal tubule.Paracellular ...
Liang, Mingyu, Knox, Franklyn G.
openaire   +2 more sources

Role of claudins in renal calcium handling

open access: yesNefrología (English Edition), 2015
Paracellular channels occurring in tight junctions play a major role in transepithelial ionic flows. This pathway includes a high number of proteins, such as claudins.
Armando Luis Negri
doaj   +1 more source

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