Results 61 to 70 of about 2,848,630 (309)

Decreased expression of breast cancer resistance protein in the duodenum in patients with obstructive cholestasis [PDF]

, 2006
Background/Aims: The expression of transporters involved in bile acid homeostasis is differentially regulated during obstructive cholestasis. Since the drug efflux transporter breast cancer resistance protein (BCRP) is known to transport bile acids, we ...
Beuers, Ulrich, Lehmann, Frank, Terracciano, Luigi, Hruz, Petr, Zimmermann, Christian, Gutmann, Heike, Drewe, Juergen, Beglinger, Christoph   +7 more
core   +1 more source

Examination of bile acid negative feedback regulation in rats.

Journal of Lipid Research, 1988
Recent data obtained using cultured rat hepatocytes showed that bile acids do not inhibit bile acid synthesis, whereas cholesterol concentrations vary in parallel with bile acid synthesis (Davis et al. (1983. J. Biol. Chem. 258: 4079-4082).
R A Davis, C A Musso, M Malone-McNeal, G R Lattier, P M Hyde, J Archambault-Schexnayder, M Straka   +6 more
doaj   +1 more source

Intrapatient tumour heterogeneity and clonal evolution in an autopsy study of metastatic salivary gland cancer

Molecular Oncology, EarlyView.
Tumour heterogeneity and clonal evolution of metastatic salivary gland cancer were evaluated in two patients with adenoid carcinoma and one patient with myoepithelial carcinoma. Radiology‐guided autopsy enabled multi‐region sampling (total samples n = 149), followed by whole‐genome sequencing and phylogenetic reconstruction (17 tumour samples, 4–7 per ...
Gerben Lassche, Niels J. van Ruitenbeek, Charlotte Adang, Luke O'Gorman, Pui Yuen Lee, Willemijn M. Klein, Adriana C. H. van Engen‐van Grunsven, Jack A. Schalken, Sander Bervoets, Gerald W. Verhaegh, Carla M. L. van Herpen   +10 more
wiley   +1 more source

A Link between cholesterol levels and phenobarbital induction of cytochromes P450 [PDF]

, 2002
Squalestatin1 (SQ1), a potent inhibitor of squalene synthase produced a dose-dependent induction of cytochromes P450 CYP2H1 and CYP3A37 mRNAs in chicken hepatoma cells. The effect of SQ1 was completely reversed by 25-hydroxycholesterol.
Christoph Handschin, Handschin, C., Meyer, U. A., Urs A. Meyer, Kaufmann, M., Jean-Claude Ourlin, Michel Kaufmann, Ourlin, J. -C.   +7 more
core   +1 more source

Dominant Bacterial Phyla from the Human Gut Show Widespread Ability To Transform and Conjugate Bile Acids

mSystems, 2021
Gut bacteria influence human physiology by chemically modifying host-synthesized primary bile acids. These modified bile acids, known as secondary bile acids, can act as signaling molecules that modulate host lipid, glucose, and energy metabolism and ...
L. N. Lucas, K. Barrett, R. L. Kerby, Q. Zhang, L. E. Cattaneo, D. Stevenson, F. E. Rey, D. Amador-Noguez   +7 more
doaj   +1 more source

APOBEC3 activity and DNA polymerase‐ε deficiency are associated with distinct IDH1 R132 hotspot mutations

Molecular Oncology, EarlyView.
Isocitrate dehydrogenase 1 (IDH1) mutations are highly recurrent in multiple human cancer types, including cholangiocarcinoma and glioma. IDH1 R132C is the most common IDH1 mutation in cholangiocarcinoma and likely arises from APOBEC3A‐ or APOBEC3B‐mediated deamination.
Kelly E. Butler, Bilal A. Lone, Ecem Unal, A. Rouf Banday   +3 more
wiley   +1 more source

Thyroid hormone differentially augments biliary sterol secretion in the rat. II. The chronic bile fistula model.

Journal of Lipid Research, 1992
To further define thyroid hormone effects on bile acid synthesis and biliary lipid secretion, studies were done in chronic bile fistula rats. Euthyroid and methimazole-hypothyroid rats, with and without triiodothyronine (T3) injection, had total bile ...
RL Gebhard, WF Prigge
doaj   +1 more source

Bile acid conjugation deficiency causes hypercholanemia, hyperphagia, islet dysfunction, and gut dysbiosis in mice

Hepatology Communications, 2022
Bile acid‐CoA: amino acid N‐acyltransferase (BAAT) catalyzes bile acid conjugation, the last step in bile acid synthesis. BAAT gene mutation in humans results in hypercholanemia, growth retardation, and fat‐soluble vitamin insufficiency.
Bandar D. Alrehaili, Mikang Lee, Shogo Takahashi, Robert Novak, Bipin Rimal, Shannon Boehme, Samuel A. J. Trammell, Trisha J. Grevengoed, Devendra Kumar, Yazen Alnouti, Katya Chiti, Xinwen Wang, Andrew D. Patterson, John Y. L. Chiang, Frank J. Gonzalez, Yoon‐Kwang Lee   +15 more
doaj   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

FEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta, Nidhi Yadav, Subhasmita Das, R. Rajendra Kumar Reddy, Nupur Sharma, Amol Ratnakar Suryawanshi, Jaswinder Singh Maras, Ranjan Kumar Nanda   +7 more
wiley   +1 more source

Paclitaxel chemotherapy disrupts microbiota-enterohepatic bile acid metabolism in mice

Gut Microbes
Balanced interactions between the enteric microbiota and enterohepatic organs are essential to bile acid homeostasis, and thus normal gastrointestinal function.
Brett R. Loman, Zainab Alzoubi, Alexis J. Lynch, Robert M. Jaggers, Kelley Jordan, Corena V. Grant, Lynette K. Rogers, Leah M. Pyter, Michael T. Bailey   +8 more
doaj   +1 more source