Results 71 to 80 of about 4,927,968 (256)

Glucose stimulates cholesterol 7α-hydroxylase gene transcription in human hepatocytes[S]

open access: yesJournal of Lipid Research, 2010
Bile acids play important roles in the regulation of lipid, glucose, and energy homeostasis. Recent studies suggest that glucose regulates gene transcription in the liver.
Tiangang Li   +4 more
doaj   +1 more source

Bioengineered Exosome‐Loaded Immunomodulatory Bioadhesive Spray Reverses Liver Fibrosis and Metabolic Dysfunction That Triggers Beneficial Gut‐Liver Crosstalk in Chronic Fatty Liver Disease

open access: yesAdvanced Science, EarlyView.
Umbilical cord stem cell‐derived exosomes encapsulated in an immunomodulatory bioadhesive hydrogel spray enable localized therapy, sustained vesicle delivery, macrophage polarization, suppress systemic inflammation, and mitigate glucose and insulin homeostasis impairments in MAFLD.
Triya Saha   +4 more
wiley   +1 more source

Chemoselective Metabolomics via a Modular Reactivity‐Encoding Platform

open access: yesAdvanced Science, EarlyView.
Conventional LC–MS underrepresents numerous metabolites due to heterogeneous ionization efficiencies and matrix interference. Here, we introduce a modular reactivity‐encoding platform (MREP) comprising four alkyne‐tagged probes that selectively derivatize key functional groups, followed by unified click‐chemistry capture to eliminate matrix components ...
Xin Tao   +10 more
wiley   +1 more source

Effect of increasing the expression of cholesterol transporters (StAR, MLN64, and SCP-2) on bile acid synthesis

open access: yesJournal of Lipid Research, 2004
There are two major pathways of bile acid synthesis: the “neutral” pathway, initiated by highly regulated microsomal cholesterol 7α-hydroxylase (CYP7A1), and an “alternative” pathway, initiated by mitochondrial sterol 27-hydroxylase (CYP27A1).
Shunlin Ren   +6 more
doaj   +1 more source

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

open access: yesHepatology 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   +15 more
doaj   +1 more source

Molecular Dynamics‐Guided Sterol Engineering of mRNA‐Lipid Nanoparticles Reprograms Biodistribution and Enhances Spleen‐Selective Immunity

open access: yesAdvanced Science, EarlyView.
Sterol engineering enables precise control of mRNA lipid nanoparticles by tuning membrane organization. Replacing cholesterol with bile acid‐derived sterols redirects protein expression from the liver to the spleen. Notably, CA‐20 LNP enhances antigen‐specific immune responses while exhibiting a favorable safety profile, highlighting sterols as a ...
Sanghyuk Jeon   +27 more
wiley   +1 more source

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

open access: yesAdvanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li   +8 more
wiley   +1 more source

Sevelamer inhibits the formation of cholesterol gallstones by modulating bile acid metabolism

open access: yesFrontiers in Pharmacology
BackgroundThe purpose of this study was to investigate the effect and mechanism of Sevelamer hydrochloride (Sev) on cholesterol gallstone formation via the intestinal Fxr-Fgf15 signaling pathway in a mouse model.MethodsA cholesterol gallstone mouse model
Shuang Shen   +9 more
doaj   +1 more source

Biochemical site of regulation of bile acid biosynthesis in the rat

open access: yesJournal of Lipid Research, 1970
The production of bile salts by rat liver is regulated by a feedback mechanism, but it is not known which enzyme controls endogenous bile acid synthesis.
SARAH SHEFER   +3 more
doaj   +1 more source

Ahcy Acts as an Effector of Hnf4a‐Driven Super‐Enhancer Activation to Alleviate MASLD During Intermittent Fasting

open access: yesAdvanced Science, EarlyView.
Our study identifies an Hnf4a‐driven super‐enhancer of hepatic Ahcy that mediates the protective effects of intermittent fasting against MASLD. Disruption of the Ahcy super‐enhancer reduces Ahcy expression and exacerbates lipid accumulation. This pathway prevents aberrant promoter hypermethylation by maintaining the SAM/SAH balance, as exemplified by ...
Huafeng Chen   +6 more
wiley   +1 more source

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