Results 91 to 100 of about 16,876 (211)

Functional Segregation of Pancreatic Microcirculation Reveals Sex‐Dependent Microhemodynamic Signatures

open access: yesComprehensive Physiology, Volume 16, Issue 2, April 2026.
Pancreatic exocrine microcirculation exhibits sexual dimorphism arising from steroid–genetic interactions. Laser Doppler flowmetry combined with wavelet analysis identifies a male passive coupling phenotype aligned with systemic pressure and a female active vasomotion phenotype driven by ERβ‐mediated, NO‐dependent oscillations.
Yuan Li   +8 more
wiley   +1 more source

Origin and diversification of steroids: Co-evolution of enzymes and nuclear receptors [PDF]

open access: yes, 2010
Recent sequencing of amphioxus and sea urchin genomes has provided important data for understanding the origins of enzymes that synthesize adrenal and sex steroids and the receptors that mediate physiological response to these vertebrate steroids ...
Michael E. Baker
core   +1 more source

Pregnane X receptor polymorphisms associated with human diseases

open access: yesExpert Opinion on Therapeutic Targets, 2013
Pregnane X receptor (PXR) belongs to the nuclear hormone receptor superfamily and is mostly expressed in liver and intestine. PXR is activated by a wide range of compounds, including drugs, and regulates the transcription of numerous metabolic enzymes implicated in cellular response to xenobiotics. Genetic variation in the PXR gene may influence a wide
Kotta-Loizou, I.   +2 more
openaire   +3 more sources

The Structural Basis of Pregnane X Receptor Binding Promiscuity [PDF]

open access: yesBiochemistry, 2009
The steroid and xenobiotic-responsive human pregnane X receptor (PXR) binds a broad range of structurally diverse compounds. The structures of the apo and ligand-bound forms of PXR are very similar, in contrast to most promiscuous proteins that generally adapt their shape to different ligands. We investigated the structural origins of PXR's recognition
Chi-Ho, Ngan   +5 more
openaire   +2 more sources

Microbiome‐Based Clustering Identifies Glycemic Control‐Related Subtypes in Youth With Recent‐Onset Type 1 Diabetes

open access: yesMedComm, Volume 7, Issue 4, April 2026.
Microbiome‐based clustering investigated possible glycemic control‐related endotypes in youth with recent‐onset T1D, and found a potential role of Bacteroides and skatole production in glycemic control. This study offers novel perspectives on the influence of intestinal microbes and its metabolites in T1D heterogeneity and lays a foundation for future ...
Huiling Tan   +13 more
wiley   +1 more source

Probiotics mixture reinforces barrier function to ameliorate necrotizing enterocolitis by regulating PXR-JNK pathway

open access: yesCell & Bioscience, 2021
Background Intestinal dysbiosis is believed to be one of the factors inducing neonatal necrotizing enterocolitis (NEC). Probiotics have been employed to treat NEC in a number of animal experiments and clinical trials, and some significant benefits of ...
Xiuhao Zhao   +8 more
doaj   +1 more source

Expression, localization and polymorphisms of the nuclear receptor PXR in Barrett's esophagus and esophageal adenocarcinoma [PDF]

open access: yes, 2011
Background: The continuous exposure of esophageal epithelium to refluxate may induce ectopic expression of bile-responsive genes and contribute to the development of Barrett's esophagus (BE) and esophageal adenocarcinoma. In normal physiology of the
Anouk van de Winkel   +9 more
core   +5 more sources

The Nuclear Pregnane X Receptor Regulates Xenobiotic Detoxification [PDF]

open access: yesThe Journal of Nutrition, 2003
The pregnane X receptor (PXR), which is a member of the nuclear receptor family of ligand-activated transcription factors, is an integral component of the body's defense mechanism against toxic xenobiotics. PXR is activated by a broad spectrum of lipophilic xenobiotics including prescription drugs, herbs, pesticides, endocrine disruptors and other ...
openaire   +2 more sources

Pregnane X receptor promotes ethanol-induced hepatosteatosis in mice [PDF]

open access: yesJournal of Biological Chemistry, 2018
The pregnane X receptor (PXR, NR1I2) is a xenobiotic-sensing nuclear receptor that modulates the metabolic response to drugs and toxic agents. Both PXR activation and deficiency promote hepatic triglyceride accumulation, a hallmark feature of alcoholic liver disease.
Sora, Choi   +4 more
openaire   +2 more sources

Tetraopes Milkweed Beetle Genomes Elucidate the Adaptive Basis of a Temperate Coevolutionary Radiation

open access: yesMolecular Ecology Resources, Volume 26, Issue 3, April 2026.
ABSTRACT The coevolutionary radiation of 27 species of Tetraopes longhorned beetles and their Asclepias milkweed hosts represents a classic example of adaptive evolution driven by plant chemical defences and herbivore counteradaptations. Investigations to date, however, have focused on a single species, Tetraopes tetrophthalmus, which feeds on the ...
Sangil Kim, Brian D. Farrell
wiley   +1 more source

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