Results 61 to 70 of about 4,715,473 (300)

Regulation of hepatic heme synthesis by drugs, bile acids and nutrition : a transcriptional network regulating [delta]-aminolevulinic acid synthase 1 (ALAS1) [PDF]

open access: yes, 2008
ALAS1 is the rate limiting enzyme of heme synthesis. It is highly inducible in liver in cases of increased heme demand, such as drug metabolism or in inducible hepatic porphyrias.
Peyer, Anne-Kathrin
core   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Biliary secretion and excretion in health and disease: Current concepts

open access: yesAnnals of Hepatology, 2007
Biliary secretion in health and disease is reviewed. The powerful techniques of molecular biology have enabled cloning of the transporters involved in biliary secretion and the enterohepatic circulation of bile acids.
Alan F Hofmann
doaj   +1 more source

Cholesterol nucleation time in gallbladder bile of patients with solitary or multiple cholesterol gallstones [PDF]

open access: yes, 1992
Patients with multiple cholesterol gallbladder stones have been found to be at a higher risk for the recurrence of gallstones after successful nonsurgical treatment than those with a solitary stone.
Ritter, Christoph von   +4 more
core   +1 more source

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

open access: yesMolecular 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   +10 more
wiley   +1 more source

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

open access: yesMolecular 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   +3 more
wiley   +1 more source

Key discoveries in bile acid chemistry and biology and their clinical applications: history of the last eight decades

open access: yesJournal of Lipid Research, 2014
During the last 80 years there have been extraordinary advances in our knowledge of the chemistry and biology of bile acids. We present here a brief history of the major achievements as we perceive them.
Alan F. Hofmann, Lee R. Hagey
doaj   +1 more source

Cholestyramine treatment in two dogs with presumptive bile acid diarrhoea: a case report

open access: yesCanine Medicine and Genetics, 2021
Background In people, bile acid diarrhoea is a prevalent complication of Crohn’s disease and diarrhoea-associated irritable bowel syndrome.
L. Toresson   +2 more
doaj   +1 more source

Fibronectin in human gallbladder bile: cholesterol pronucleating and/or mucin "link" protein? [PDF]

open access: yes, 1994
Some biliary proteins (pronucleators) seem to be essential factors for cholesterol crystal formation and crystal growth in bile. A recent study suggests that fibronectin is such a pronucleator in bile.
Ritter, Christoph von   +11 more
core   +1 more source

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

open access: yesFEBS 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   +7 more
wiley   +1 more source

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