PubMed Journals Articles About "Alb1 3123Lng Mouse Model Liver Function Studies" RSS

02:32 EDT 16th September 2019 | BioPortfolio

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Showing "Alb1 3123Lng Mouse Model Liver Function Studies" PubMed Articles 1–25 of 54,000+

Nicotinamide riboside, an NAD+ precursor, attenuates the development of liver fibrosis in a diet-induced mouse model of liver fibrosis.

Liver fibrosis is part of the non-alcoholic fatty liver disease (NAFLD) spectrum, which currently has no approved pharmacological treatment. In this study, we investigated whether supplementation of nicotinamide riboside (NR), a nicotinamide adenine dinucleotide (NAD+) precursor, can reduce the development of liver fibrosis in a diet-induced mouse model of liver fibrosis.

Mouse models of hereditary hemochromatosis do not develop early liver fibrosis in response to a high fat diet.

Hepatic iron overload, a hallmark of hereditary hemochromatosis, triggers progressive liver disease. There is also increasing evidence for a pathogenic role of iron in non-alcoholic fatty liver disease (NAFLD), which may progress to non-alcoholic steatohepatitis (NASH), fibrosis, cirrhosis and hepatocellular cancer. Mouse models of hereditary hemochromatosis and NAFLD can be used to explore potential interactions between iron and lipid metabolic pathways. Hfe-/- mice, a model of moderate iron overload, were...

Sirtuin2 enhances the tumoricidal function of liver natural killer cells in a mouse hepatocellular carcinoma model.

Hepatocellular carcinoma (HCC) is the third most lethal cancer in the world. Natural killer (NK) cell-mediated immunity is crucial for tumor surveillance and therapy. Characterization of the regulatory mechanisms of NK cell function is important for developing novel immunotherapies against HCC. In this study, we used a chemical-induced mouse HCC model to identify the upregulation of Sirtuin2 (SIRT2) in liver NK cells. In particular, SIRT2 was predominantly expressed in liver CD94 NK cells. The HCC liver mic...

Development and validation of a primate model for liver fibrosis.

Many liver diseases involve liver fibrosis. Most preclinical studies of liver fibrosis are carried out in small animals such as rodents, and thus lack direct potential for extrapolation to human diseases. The aim of the current study was to develop a primate model for liver fibrosis with greater relevance to translational research.

Liver infiltrating T cells regulate bile acid metabolism in experimental cholangitis.

T cells are central mediators of liver inflammation and represent potential treatment targets in cholestatic liver disease. Whereas emerging evidence shows that bile acids (BA) affect T cell function, the role of T cells for the regulation of BA metabolism is unknown. In order to understand this interplay, we investigated the influence of T cells on BA metabolism in a novel mouse model of cholangitis.

Sweroside ameliorated carbon tetrachloride (CCl)-induced liver fibrosis through FXR-miR-29a signaling pathway.

To date, there are very few effective drugs for liver fibrosis treatment; therefore, it is urgent to develop novel therapeutic targets and approaches. In the present research, we sought to study the protective effect of sweroside contained in Lonicera japonica or blue honeysuckle berries in a mouse model of liver fibrosis and investigate the underlying mechanism. The mouse model of liver fibrosis in was induced by intraperitoneal injections of 10% CCl for 6 weeks (three times/week). At the beginning of the...

Effects of adenovirus-induced hepatocyte damage on chronic bile duct inflammation in a sclerosing cholangitis mouse model.

Four major autoimmune diseases target the liver. They develop due to bile duct destruction, leading to chronic cholestasis or result from hepatocyte damage like autoimmune hepatitis (AIH). Interestingly, some patients simultaneously show features of both cholangitis and AIH. Our goal was to mimic such concurrent characteristics in a mouse model that would help deciphering mechanisms possibly involved in an inflammatory crosstalk between cholestatic disease and hepatitis.

Increased expression of renal drug transporters in a mouse model of familial Alzheimer's disease.

It is well established that the expression and function of drug transporters at the blood-brain barrier (BBB) are altered in Alzheimer's disease (AD). However, we recently demonstrated in a mouse model of AD that the expression of key drug transporters and metabolizing enzymes was modified in peripheral organs, such as the small intestine and liver, suggesting that systemic drug absorption may be altered in AD. The purpose of this study was to determine whether the expression of drug transporters in the kid...

Pharmacological activation of the nuclear receptor REV-ERB reverses cognitive deficits and reduces amyloid-β burden in a mouse model of Alzheimer's disease.

Alzheimer's disease currently lacks treatment options that effectively reverse the biological/anatomical pathology and cognitive deficits associated with the disease. Loss of function of the nuclear receptor REV-ERB is associated with reduced cognitive function in mouse models. The effect of enhanced REV-ERB activity on cognitive function has not been examined. In this study, we tested the hypothesis that enhanced REV-ERB function may enhance cognitive function in a model of Alzheimer's disease. We utilized...

Aspirin Triggered Resolvin D1 reduces inflammation and restores saliva secretion in a Sjögren's syndrome mouse model.

SS is characterized by chronic inflammation of the salivary glands leading to loss of secretory function, thereby suggesting specialized pro-resolving mediators targeting inflammation to be a viable option for treating SS. Previous studies demonstrated that aspirin-triggered resolvin D1 (AT-RvD1) prevents chronic inflammation and enhances saliva secretion in a SS-like mouse model when applied before disease onset. However, this therapy cannot be used in SS patients given that diagnosis occurs post-disease o...

Transplantation of human adipose tissue derived-SVF enhance liver function through high anti-inflammatory property.

Although human adipose tissue-derived stromal vascular fraction (SVF) has been considered a promising source of stem cells, its characteristics relevant to treatment of a damaged liver have not been fully elucidated. In the present study, we sought to characterize the property of human SVF and determine the therapeutic utility of SVF in the liver cirrhosis model. We performed microarray, quantitative (q)-PCR experiments, and in vivo therapeutic assays using a liver cirrhotic mouse model. q-PCR results revea...

Schisandra chinensis acidic polysaccharide partialy reverses acetaminophen-induced liver injury in mice.

Schisandra chinensis is a hepatoprotective herb that has been used for centuries in China. Polysaccharide is one of the major active components in S. chinensis, which has been reported to improve liver injuries induced by carbon tetrachloride, alcohol, or high-fat diet. In this study, we observed the effects and corresponding mechanisms of the secondary component of Schisandra polysaccharide (acidic polysaccharide, SCAP) on a murine model of severe acute liver injury induced by acetaminophen (APAP). SCAP si...

Sex- and age-specific mechanical properties of liver tissue under dynamic loading conditions.

The liver is the most commonly injured abdominal organ following either blunt or penetrating impact. Current mechanical properties available in the literature are typically only measured at low strain rates, low strains, or use linear viscoelastic models. There is also a dearth of high-rate, large strain, viscoelastic data available for liver tissue which are required to model the deformation of the liver during high-rate impacts. Furthermore, the issue of whether mouse liver's mechanical properties are sex...

Efficacy of Ozone and Selenium Therapy for Alcoholic Liver Injury: An Experimental Model.

Alcoholic liver disease is an important health problem which is reversible during early stages of liver damage, but becomes permanent with time. Nowadays, many studies focus on various agents that prevent, reduce or slow the progression of the toxic effects of alcohol. In our study, we investigated the efficiency of ozone and selenium against oxidative damage in a model of alcohol-induced liver damage.

Conditional Mutation of SMC5 in Mouse Embryonic Fibroblasts.

The structural maintenance of chromosomes (SMC) complex, SMC5/6, is important for genome maintenance in all model eukaryotes. To date, the most extensive studies have focused on the roles of Smc5/6 in lower eukaryotes, such as yeast and fly. In the handful of studies that have used mammalian cells, siRNA was used by most to knockdown SMC5/6 components. RNAi methods have been very important for scientific progression, but they are hindered by incomplete silencing of protein expression and off-target effects....

SHMT2 Promotes Liver Regeneration Through Glycine-activated Akt/mTOR Pathway.

The development of liver transplantation (LT) is increasingly being limited by the unavailability of liver grafts. Unique regenerative capacity of liver in response to injuries makes living donor liver transplantation (LDLT) a feasible strategy to meet clinical demands. Serine hydroxymethyl-transferase 2 (SHMT2) serves as the key enzyme in the biosynthesis of glycine. Glycine affects the activity of mammalian target of rapamycin (mTOR), which is important for cellular growth and proliferation. In this study...

Variance of body and organ weights in 28-day studies in mice.

The OECD guideline 407 outlines the conduct of 28-day studies in rodents to detect systemic toxicity with focus on endocrine and immunotoxic effects. It was validated with the rat as preferred model species. Justification is required for other rodent species, as an increased variability is expected compared to the rat. We investigated the variability of organ weights in the mouse and compared this to data published for the rat in the validation report of test guideline 407. Furthermore, the influence of the...

Repressive Epigenetic Signatures Safeguard the Liver.

To date, how epigenetic changes are regulated during liver regeneration remains unclear. In this issue of Developmental Cell, Wang and colleagues (2019) employed transcriptomic and epigenomic profiling to explore how Uhrf1, an epigenetic regulator of DNA methylation, functions in liver regeneration using a mouse model of partial hepatectomy.

PD-1 Blockade in a Liver Transplant Recipient With Microsatellite Unstable Metastatic Colorectal Cancer and Hepatic Impairment.

Immune checkpoint inhibitors represent a newly established standard of care in patients with refractory metastatic colorectal cancer with mismatch repair deficiency and microsatellite instability. However, the use of immunotherapy is unclear in recipients of liver transplants with or without concurrent liver function abnormalities. Clinical trials investigating immunotherapy have mostly excluded liver transplant recipients and patients with abnormal liver function. This report presents the first case, to ou...

(5R)-5-hydroxytriptolide ameliorates liver lipid accumulation by suppressing lipid synthesis and promoting lipid oxidation in mice.

(5R)-5-hydroxytriptolide (LLDT-8) is a triptolide analog with excellent capability against cancers, cerebral ischemic injury and rheumatoid arthritis. Here, we discovered its hepatoprotective effects in a mouse model of non-alcoholic fatty liver disease (NAFLD) by ameliorating liver lipid accumulation.

Intelligent Liver Function Testing (iLFT): A trial of automated diagnosis and staging of liver disease in Primary Care.

Liver function tests (LFTs) are frequently requested blood tests which may indicate liver disease. LFTs are commonly abnormal, the causes of which can be complex and frequently under investigated. This can lead to missed opportunities to diagnose and treat liver disease at an early stage. We developed an automated investigation algorithm, which would maximise early diagnosis of liver related diseases. Our aim was to determine whether this new pathway of care, Intelligent Liver Function testing (iLFT) increa...

Simulation and navigation of living donor hepatectomy using a unique three-dimensional printed liver model with soft and transparent parenchyma.

Three-dimensional printed liver models have been used for preoperative simulation. Unlike the standard three-dimensional system on a monitor, the three-dimensional printed model can be observed from any angle manually; therefore, surgeons can obtain a clear image directly from the model. We herein report the use of a unique three-dimensional liver model with a soft and transparent liver parenchyma. Through the parenchyma, the surgeons can observe the intrahepatic vessels and perform incisions in the model a...

A new Elf5 BAC transgenic mouse model for tracing Elf5 cell lineages in adult tissues.

Elf5 is a transcription factor known to regulate critical developmental processes and has been shown to act as a tumor suppressor in multiple cancers. Elf5 knockout mice are embryonically lethal, limiting in vivo studies pertaining to its function. Moreover, haploinsufficiency of Elf5 limits the use of current mouse models to investigate adult tissue distribution of Elf5. Here, we successfully generated Elf5 bacterial artificial chromosome (BAC) transgenic mice and show that Elf5 cells are present in severa...

Circular RNA expression profile of liver tissues in an EtOH-induced mouse model of alcoholic hepatitis.

Alcoholic hepatitis (AH) is a widely prevalent liver-related disease that results from long-term alcohol consumption. However, there is still a lack of effective treatment. Previous studies have reported that circular RNAs (circRNAs) are related to the development of various diseases. However, the function of circRNAs and their roles in AH are largely unknown. Therefore, we used bioinformatics analysis to investigate changes in circRNA expression and predict their functions in AH. An AH model was establishe...

External Validation of a Pre-Transplant Biomarker Model (REVERSE) Predictive of Renal Recovery after Liver Transplantation.

In patients with end stage liver disease, the ability to predict recovery of renal function following liver transplantation alone (LTA) remains elusive. However, several important clinical decisions depend on whether renal dysfunction is recoverable after LTA. We used a cohort of patients undergoing LT to independently validate a pre-LT model predictive of post-LTA renal recovery (REVERSE: high osteopontin (OPN) and tissue inhibitor of metalloproteinases-1 (TIMP-1) levels, age

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