Results 31 to 40 of about 18,065 (250)

Pregnane X receptor activation potentiates ritonavir hepatotoxicity [PDF]

Journal of Clinical Investigation, 2019
Ritonavir (RTV) is on the World Health Organization's List of Essential Medicines for antiretroviral therapy, but can cause hepatotoxicity by unknown mechanisms. Multiple clinical studies found that hepatotoxicity occurred in 100% of participants who were pretreated with rifampicin or efavirenz followed by RTV-containing regimens.
Amina I. Shehu, Jie Lu, Pengcheng Wang, Junjie Zhu, Yue Wang, Da Yang, Deborah McMahon, Wen Xie, Frank J. Gonzalez, Xiaochao Ma   +9 more
openaire   +2 more sources

Nuclear receptors in vascular biology [PDF]

, 2015
Nuclear receptors sense a wide range of steroids and hormones (estrogens, progesterone, androgens, glucocorticoid, and mineralocorticoid), vitamins (A and D), lipid metabolites, carbohydrates, and xenobiotics.
A Chawla, A McCurley, AA Hamers, AL Bookout, B Fisslthaler, BG Hoebel, C McCarthy, C Zhou, CH Lee, CK Glass, CK Huang, CT Lee, D Bishop-Bailey, D Bishop-Bailey, David Bishop-Bailey, DP Edwards, E Gerlach, F Akbiyik, FA Pereira, FL Wynne, FY Ali, G Pascual, I Dussault, I Spoletini, J He, J Qin, J Sonoda, J Xiang, K Spruiell, KE Swales, L Calza, L Li, L Piqueras, LA Moraes, LA Moraes, LJ Jonk, LR You, M Kaushik, M Matic, N Albermann, N Schafer, N Takamoto, Q Qin, R Zhao, S Asgary, S Chakrabarti, S Marino De, S Stein, SA Kliewer, V Zoete, W El-Sankary, WC Lau, X Wang, Y Ma, Y Sui, Y Sui, YW Hu   +56 more
core   +3 more sources

Resveratrol as an Inhibitor of Pregnane X Receptor (PXR): Another Lesson in PXR Antagonism

Journal of Pharmacological Sciences, 2014
.: The pregnane X receptor (PXR) plays a central role in the regulation of metabolism. Only few PXR antagonists have been described and the mechanism of PXR inhibition is mostly hypothetical or believed to be allosteric.
Tomas Smutny, Petr Pavek
doaj   +1 more source

Exposure to Endocrine Disruptors and Nuclear Receptors Gene Expression in Infertile and Fertile Men from Italian Areas with Different Environmental Features [PDF]

, 2015
Internal levels of selected endocrine disruptors (EDs) (i.e., perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), di-2-ethylhexyl-phthalate (DEHP), mono-(2-ethylhexyl)-phthalate (MEHP), and bisphenol A (BPA)) were analyzed in blood/serum of ...
Bergamasco B, Bordi G, Busani L, Caserta D, Ciardo F, Focardi S, Guerranti C, La Rocca C, Mancini FR, Mantovani A, Marci R, Moscarini M, Perra G, Stecca L, Tait S   +14 more
core   +2 more sources

Post-translational modification of pregnane x receptor [PDF]

Pharmacological Research, 2011
Pregnane x receptor (PXR, NR1I2) was originally characterized as a broad spectrum entero-hepatic xenobiotic 'sensor' and master-regulator of drug inducible gene expression. A compelling description of ligand-mediated gene activation has been unveiled in the last decade that firmly establishes this receptor's central role in the metabolism and transport
Staudinger, Jeffrey Leonard, Xu, Chenshu, Biswas, Arunima, Mani, Sridhar   +3 more
openaire   +3 more sources

Unsaturated fatty acid regulation of cytochrome P450 expression via a CAR-dependent pathway. [PDF]

, 2008
The liver is responsible for key metabolic functions, including control of normal homoeostasis in response to diet and xenobiotic metabolism/detoxification.
Finn, Robert, Henderson, Colin, Scott, Claire, Wolf, Roland   +3 more
core   +4 more sources

Functional evolution of the pregnane X receptor [PDF]

Expert Opinion on Drug Metabolism & Toxicology, 2006
The pregnane X receptor (PXR; NR1I2) is a nuclear hormone receptor (NR) that transcriptionally regulates genes encoding transporters and drug-metabolising enzymes in the liver and intestine. PXR activation leads to enhanced metabolism and elimination of xenobiotics and endogenous compounds such as hormones and bile salts.
Manisha, Iyer, Erica J, Reschly, Matthew D, Krasowski   +2 more
openaire   +2 more sources

Nutritional status modifies pregnane X receptor regulated transcriptome [PDF]

Scientific Reports, 2019
AbstractPregnane X receptor (PXR) regulates glucose and lipid metabolism, but little is known of the nutritional regulation of PXR function. We investigated the genome wide effects of the nutritional status on the PXR mediated gene regulation in the liver.
Fatemeh Hassani‐Nezhad‐Gashti, Outi Kummu, Mikko Karpale, Jaana Rysä, Jukka Hakkola   +4 more
openalex   +4 more sources

Sustained Isoprostane E2 Elevation, Inflammation and Fibrosis after Acute Ischaemia-Reperfusion Injury Are Reduced by Pregnane X Receptor Activation.

PLoS ONE, 2015
Liver grafts donated after cardiac death are increasingly used to expand the donor pool but are prone to ischaemic-type biliary lesions. The anti-inflammatory effects of the activated pregnane X receptor have previously been shown to be beneficial in a ...
Aimen O Amer, Philip M Probert, Michael Dunn, Margaret Knight, Abigail E Vallance, Paul A Flecknell, Fiona Oakley, Iain Cameron, Steven A White, Peter G Blain, Matthew C Wright   +10 more
doaj   +1 more source

Modulation of Xenobiotic Receptors by Steroids

Molecules, 2013
Nuclear receptors (NRs) are ligand-activated transcription factors that regulate the expression of their target genes. NRs play important roles in many human diseases, including metabolic diseases and cancer, and are therefore a key class of therapeutic ...
Delira Robbins, Monimoy Banerjee, Taosheng Chen   +2 more
doaj   +1 more source