Results 31 to 40 of about 41,666 (255)

3D visualization of trans-syncytial nanopores provides a pathway for paracellular diffusion across the human placental syncytiotrophoblast

open access: yesiScience, 2022
Summary: The placental syncytiotrophoblast, a syncytium without cell-cell junctions, is the primary barrier between the mother and the fetus. Despite no apparent anatomical pathway for paracellular diffusion of solutes across the syncytiotrophoblast ...
Rohan M. Lewis   +10 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

Dietary calcium decreases but short-chain fructo-oligosaccharides increase colonic permeability in rats [PDF]

open access: yes, 2010
An increased intestinal permeability is associated with several diseases. Nutrition can influence gut permeability. Previously, we showed that dietary Ca decreases whereas dietary short-chain fructo-oligosaccharides (scFOS) increase intestinal ...
Bovee-Oudenhoven, I.M.J.   +7 more
core   +3 more sources

Arachidonic acid cascade and epithelial barrier function during Caco-2 cell differentiation

open access: yesJournal of Lipid Research, 2006
The small intestinal epithelium is a highly dynamic system continuously renewed by a process involving cell proliferation and differentiation. The intestinal epithelium constitutes a permeability barrier regulating the vectorial transport of ions, water,
Raquel Martién-Venegas   +3 more
doaj   +1 more source

Developmental expression of claudins in the mammary gland [PDF]

open access: yes, 2017
Claudins are a large family of membrane proteins whose classic function is to regulate the permeability of tight junctions in epithelia. They are tetraspanins, with four alpha-helices crossing the membrane, two extracellular loops, a short cytoplasmic N ...
Baumgartner, Heidi K.   +8 more
core   +1 more source

Intestinal epithelial responses to Salmonella enterica serovar Enteritidis: Effects on intestinal permeability and ion transport [PDF]

open access: yes, 2019
Salmonella infection of chickens that leads to potential human foodborne salmonellosis continues to be a major concern. Chickens serve as carriers but, in contrast to humans, rarely show any clinical signs including diarrhea.
Aschenbach, J. R.   +4 more
core   +1 more source

Lipid peroxidation induced by DHA enrichment modifies paracellular permeability in Caco-2 cells

open access: yesJournal of Lipid Research, 2004
Dietary enrichment with docosahexaenoic acid (DHA) has numerous beneficial effects on health. However, the intake of high doses of polyunsaturated fatty acids can promote lipid peroxidation and the subsequent propagation of oxygen radicals.
Sònia Roig-Pérez   +3 more
doaj   +1 more source

Anthocyanins protect the gastrointestinal tract from high fat diet-induced alterations in redox signaling, barrier integrity and dysbiosis. [PDF]

open access: yes, 2019
The gastrointestinal (GI) tract can play a critical role in the development of pathologies associated with overeating, overweight and obesity. We previously observed that supplementation with anthocyanins (AC) (particularly glycosides of cyanidin and ...
Adamo, Ana M   +9 more
core   +2 more sources

Reconstitution of functional tight junctions with individual claudin subtypes in epithelial cells

open access: yesCell Structure and Function, 2022
The claudin family of membrane proteins is responsible for the backbone structure and function of tight junctions (TJs), which regulate the paracellular permeability of epithelia.
Mikio Furuse   +8 more
doaj   +1 more source

Mechanisms of Intestinal Epithelial Barrier Dysfunction by Adherent-Invasive Escherichia coli. [PDF]

open access: yes, 2016
Pathobiont expansion, such as that of adherent-invasive Escherichia coli (AIEC), is an emerging factor associated with inflammatory bowel disease. The intestinal epithelial barrier is the first line of defense against these pathogens.
McCole, Declan F, Shawki, Ali
core   +1 more source

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