Results 51 to 60 of about 263,980 (286)

Epithelial NAD+ depletion drives mitochondrial dysfunction and contributes to intestinal inflammation

open access: yesFrontiers in Immunology, 2023
IntroductionWe have previously demonstrated that a pathologic downregulation of peroxisome proliferator-activated receptor–gamma coactivator 1-alpha (PGC1α) within the intestinal epithelium contributes to the pathogenesis of inflammatory bowel disease ...
Elizabeth A. Novak   +20 more
doaj   +1 more source

Infection-generated electric field in gut epithelium drives bidirectional migration of macrophages. [PDF]

open access: yes, 2019
Many bacterial pathogens hijack macrophages to egress from the port of entry to the lymphatic drainage and/or bloodstream, causing dissemination of life-threatening infections. However, the underlying mechanisms are not well understood.
Ferreira, Fernando   +14 more
core   +2 more sources

STUDIES ON SMALL INTESTINAL CRYPT EPITHELIUM [PDF]

open access: yesThe Journal of Cell Biology, 1963
Small intestinal crypt epithelium obtained from normal fasting humans by peroral biopsy of the mucosa was studied with the electron microscope. Paneth cells were identified at the base of the crypts by their elaborate highly organized endoplasmic reticulum, large secretory granules, and small lysosome-like dense bodies within the cytoplasm ...
openaire   +1 more source

Intrinsic Defense Mechanisms of the Intestinal Epithelium [PDF]

open access: yesCell Host & Microbe, 2016
The intestinal epithelium is a single cell layer that facilitates the absorption of nutrients but also provides a tight barrier to prevent pathogen invasion and dissemination of commensal microbes. Specialized epithelial cells of the gastrointestinal tract achieve this frontline defense by working in concert with lymphoid, myeloid, and stromal cells to
Deepshika, Ramanan, Ken, Cadwell
openaire   +2 more sources

Murine intestinal organoids resemble intestinal epithelium in their microRNA profiles [PDF]

open access: yesBioscience, Biotechnology, and Biochemistry, 2018
Abstract Intestinal organoids were established as an ex vivo model of the intestinal epithelium. We investigated whether organoids resemble the intestinal epithelium in their microRNA (miRNA) profiles. Total RNA samples were obtained from crypt and villus fractions in murine intestine and from cultured organoids.
Ohsaka, Fumina, Sonoyama, Kei
openaire   +3 more sources

Cross-Talk Between the Intestinal Epithelium and Salmonella Typhimurium

open access: yesFrontiers in Microbiology, 2022
Salmonella enterica serovars are invasive gram-negative bacteria, causing a wide range of diseases from gastroenteritis to typhoid fever, representing a public health threat around the world.
Sandrine Ménard   +7 more
doaj   +1 more source

Detection of inflammation- and neoplasia-associated alterations in human large intestine using plant/invertebrate lectins, galectin-1 and neoglycoproteins [PDF]

open access: yes, 1998
Commonly, plant and invertebrate lectins are accepted glycohistochemical tools for the analysis of normal and altered structures of glycans in histology and pathology.
Bosbach, R.   +3 more
core   +1 more source

Metabolic fuel selection by intestinal epithelium [PDF]

open access: yesProceedings of the Nutrition Society, 1995
RESUME Les nutriments prCsents dans la lumikre intestinale aprks un repas sont absorb& sklectivement par 1’CpithClium intestinal. L’absorption varie avec le mode d’alimentation et avec les conditions physiologiques (croissance, lactation, vieillissement) et avec les conditions pathologiques liCes ou non a la nutrition.
openaire   +2 more sources

PPARα-targeted mitochondrial bioenergetics mediate repair of intestinal barriers at the host-microbe intersection during SIV infection. [PDF]

open access: yes, 2019
Chronic gut inflammatory diseases are associated with disruption of intestinal epithelial barriers and impaired mucosal immunity. HIV-1 (HIV) causes depletion of mucosal CD4+ T cells early in infection and disruption of gut epithelium, resulting in ...
Arredondo, Juan   +13 more
core  

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

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