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Showing 1-30 of 113 results for "C1129" within Papers
Armanda Szücs et al.
PloS one, 15(5), e0233736-e0233736 (2020-05-30)
The liver is well known for its enormous regenerative capacity. If the hepatocytes are compromised the reserve stem cells can regrow the lost tissue by means of oval cells differentiating into hepatocytes. We were curious whether this standby system was
Bethany P Cummings et al.
Disease models & mechanisms, 6(2), 443-456 (2012-12-25)
Post-operative increases in circulating bile acids have been suggested to contribute to the metabolic benefits of bariatric surgery; however, their mechanistic contributions remain undefined. We have previously reported that ileal interposition (IT) surgery delays the onset of type 2 diabetes
Hiroyuki Sato et al.
Journal of medicinal chemistry, 51(6), 1831-1841 (2008-03-01)
TGR5, a metabotropic receptor that is G-protein-coupled to the induction of adenylate cyclase, has been recognized as the molecular link connecting bile acids to the control of energy and glucose homeostasis. With the aim of disclosing novel selective modulators of
Biao Nie et al.
Hepatology (Baltimore, Md.), 56(4), 1300-1310 (2012-04-26)
Bile acids are known to play important roles as detergents in the absorption of hydrophobic nutrients and as signaling molecules in the regulation of metabolism. We tested the novel hypothesis that naturally occurring bile acids interfere with protein-mediated hepatic long
Nevzat Kazgan et al.
Gastroenterology, 146(4), 1006-1016 (2014-01-07)
Sirtuin 1 (SIRT1), the most conserved mammalian oxidized nicotinamide adenine dinucleotide-dependent protein deacetylase, is an important metabolic sensor in many tissues. However, little is known about its role in the small intestine, which absorbs and senses nutrients. We investigated the
F J Reen et al.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 33(10), 1763-1771 (2014-05-13)
Chronic respiratory infections are a leading global cause of morbidity and mortality. However, the molecular triggers that cause respiratory pathogens to adopt persistent and often untreatable lifestyles during infection remain largely uncharacterised. Recently, bile aspiration caused by gastro-oesophageal reflux (GOR)
Rebecca C Flanagan et al.
Infection and immunity, 77(6), 2399-2407 (2009-04-08)
Campylobacter jejuni colonization of chickens is presumably dependent upon multiple surface-exposed proteins termed adhesins. Putative C. jejuni adhesins include CadF, CapA, JlpA, major outer membrane protein, PEB1, Cj1279c, and Cj1349c. We examined the genetic relatedness of 97 C. jejuni isolates
Chunyan Zhao et al.
European journal of drug metabolism and pharmacokinetics, 39(2), 129-137 (2013-06-12)
For orally administered drugs, the metabolism of a drug by the gut flora plays an important role in the bioavailability, activation and disposition of the drug in vivo. However, no in vitro system is currently available to evaluate the metabolism
Ryan D Jones et al.
American journal of physiology. Gastrointestinal and liver physiology, 303(2), G263-G274 (2012-05-26)
Cholesterol 7α-hydroxylase (CYP7A1) is the initiating and rate-limiting enzyme in the neutral pathway that converts cholesterol to primary bile acids (BA). CYP7A1-deficient (Cyp7a1(-/-)) mice have a depleted BA pool, diminished intestinal cholesterol absorption, accelerated fecal sterol loss, and increased intestinal
Wim F P M Van den Hof et al.
Toxicology in vitro : an international journal published in association with BIBRA, 29(3), 489-501 (2015-01-07)
In order to improve attrition rates of candidate-drugs there is a need for a better understanding of the mechanisms underlying drug-induced hepatotoxicity. We aim to further unravel the toxicological response of hepatocytes to a prototypical cholestatic compound by integrating transcriptomic
Spyridon Theofilopoulos et al.
Nature chemical biology, 9(2), 126-133 (2013-01-08)
Liver X receptors (Lxrα and Lxrβ) are ligand-dependent nuclear receptors critical for ventral midbrain neurogenesis in vivo. However, no endogenous midbrain Lxr ligand has so far been identified. Here we used LC/MS and functional assays to identify cholic acid as
Dominique Brossard et al.
European journal of medicinal chemistry, 45(7), 2912-2918 (2010-04-13)
The novelty of this work derives from the use of nitrogenous heterocycles as building block in the synthesis of conjugate bile acid derivatives. New piperazinyl bile acid derivatives were synthesized and tested in vitro against various human cancer cells (GBM
Liliya Vinarova et al.
Food & function, 6(4), 1319-1330 (2015-03-17)
Quillaja saponin extracts are known to reduce plasma cholesterol levels in humans. Here we study the mechanism of this effect with Quillaja Dry saponin extract (QD). In vitro model of triglyceride lipolysis is used to quantify the effect of QD
Edurne Nuin et al.
Organic letters, 15(2), 298-301 (2013-01-01)
New photoactive dyads have been synthesized by derivatization of cholic acid (CA) or cholesterol (Ch). These compounds have proven to be efficient tools to monitor incorporation of CA and Ch to mixed micelles (MM) and to probe the microenvironment experienced
Sindy Escobar-Alvarez et al.
Molecular and cellular biology, 30(21), 5099-5109 (2010-09-02)
Deformylases are metalloproteases in bacteria, plants, and humans that remove the N-formyl-methionine off peptides in vitro. The human homolog of peptide deformylase (HsPDF) resides in the mitochondria, along with its putative formylated substrates; however, the cellular function of HsPDF remains
Christopher A Elkins et al.
Antimicrobial agents and chemotherapy, 54(3), 1007-1015 (2009-12-30)
AcrAB-TolC imparts a strong intrinsic resistance phenotype to many clinically significant molecules in Escherichia coli. This complex is composed of a pump, AcrB, and a periplasmic protein, AcrA, that exports substrates through a common outer membrane porin, TolC. A sequence
Florence Janvier et al.
Journal of the mechanical behavior of biomedical materials, 18, 100-107 (2012-12-25)
Elevated red blood cell (RBC) aggregation increases low-shear blood viscosity and is closely related to several pathophysiological diseases such as atherosclerosis, thrombosis, diabetes, hypertension, cancer, and hereditary chronic hemolytic conditions. Non-ionic linear polymers such as poly(ethylene glycol) (PEG) and Pluronic
Roberto Pellicciari et al.
Journal of medicinal chemistry, 50(18), 4265-4268 (2007-08-10)
23-Alkyl-substituted and 6,23-alkyl-disubstituted derivatives of chenodeoxycholic acid are identified as potent and selective agonists of TGR5, a G-protein coupled receptor for bile acids (BAs). In particular, we show that methylation at the C-23(S) position of natural BAs confers a marked
Manish Singh et al.
Biochimica et biophysica acta, 1828(8), 1926-1937 (2013-04-18)
We synthesized four cationic bile acid based facial amphiphiles featuring trimethyl ammonium head groups. We evaluated the role of these amphiphiles for cytotoxic activities against colon cancer cells and their membrane interactions by varying charge, hydration and hydrophobicity. The singly
Yubing Xiong et al.
Macromolecular bioscience, 12(4), 515-524 (2012-05-19)
A novel amphiphilic and biodegradable polyelectrolyte DS-CA is prepared by the esterification of DS with CA. DS-CA can self-assemble into stable nanoparticles in water. SOD can effectively associate with DS-CA at pH = 5.0 by virtue of electrostatic and hydrophobic
Kejun Zhou et al.
Journal of proteome research, 14(11), 4844-4850 (2015-10-10)
Biliary atresia (BA) is a severe chronic cholestasis disorder of infants that leads to death if not treated on time. Neonatal hepatitis syndrome (NHS) is another leading cause of neonatal cholestasis confounding the diagnosis of BA. Recent studies indicate that
Roberto Pellicciari et al.
Journal of medicinal chemistry, 52(24), 7958-7961 (2009-12-18)
In the framework of the design and development of TGR5 agonists, we reported that the introduction of a C(23)(S)-methyl group in the side chain of bile acids such as chenodeoxycholic acid (CDCA) and 6-ethylchenodeoxycholic acid (6-ECDCA, INT-747) affords selectivity for
Yao Qi et al.
Molecular bioSystems, 10(10), 2617-2625 (2014-07-22)
Rheumatoid arthritis (RA) is a chronic systemic inflammatory and autoimmune disease accompanied by the destruction and deformities of joints. Adjuvant-induced arthritis (AIA) is one of the excellent animal models of RA used to understand disease pathogenesis and screen potential drugs.
Xingguo Cheng et al.
The Journal of pharmacology and experimental therapeutics, 351(1), 105-113 (2014-07-19)
NADPH-cytochrome P450 reductase (Cpr) is essential for the function of microsomal cytochrome P450 monooxygenases (P450), including those P450s involved in bile acid (BA) synthesis. Mice with hepatocyte-specific deletion of NADPH-cytochrome P450 reductase (H-Cpr-null) have been engineered to understand the in
Jennifer A Martin et al.
Analytical and bioanalytical chemistry, 406(19), 4637-4647 (2014-06-02)
The first-known aptamer for the stress biomarker cortisol was selected using a tunable stringency magnetic bead selection strategy. The capture DNA probe immobilized on the beads was systematically lengthened to increase the number of bases bound to the complementary pool
E E Deschner et al.
Digestion, 21(6), 290-296 (1981-01-01)
Administration of cholic acid (1.0% of the diet) to male Fisher rats for 3 days resulted in increased numbers of DNA synthesizing epithelial cells per colonic crypt column as compared to those found in either control or 0.2% cholic acid-fed
Atefeh Rafiei et al.
Rapid communications in mass spectrometry : RCM, 29(1), 119-127 (2014-12-03)
Data analysis is a key step in mass spectrometry based untargeted metabolomics, starting with the generation of generic peak lists from raw liquid chromatography/mass spectrometry (LC/MS) data. Due to the use of various algorithms by different workflows, the results of
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation
Sudhir N Bavikar et al.
Bioorganic & medicinal chemistry letters, 18(20), 5512-5517 (2008-09-23)
Tetrapeptides derived from glycine and beta-alanine were hooked at the C-3beta position of the modified cholic acid to realize novel linear tetrapeptide-linked cholic acid derivatives. All the synthesized compounds were tested against a wide variety of microorganisms (gram-negative bacteria, gram-positive
Yu Shao et al.
ACS applied materials & interfaces, 6(13), 10381-10392 (2014-06-13)
To develop a feasible and efficient nanocarrier for potential clinical application, a series of photo and redox dual responsive reversibly cross-linked micelles have been developed for the targeted anticancer drug delivery. The nanocarrier can be cross-linked efficiently via a clean
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