Abstract:
BACKGROUND:Liver injury and regeneration involve complicated processes and are affected by various physio-pathological conditions. Surgically, severe liver injury after surgical resection often leads to fatal liver failure, especially with some underlying pathological conditions such as steatosis. Therefore, protection from the injury of hepatocytes and liver is a serious concern in various clinical settings. METHODS:We studied the effects of the farnesoid X receptor (FXR) on cell survival and steatosis in mouse hepatocytes (AML12 mouse liver cells) and investigated their molecular mechanisms. We next studied whether or not FXR improves liver injury, regeneration and steatosis in a mouse model of partial hepatectomy (PH) with steatosis. RESULTS:An FXR-specific agonist, GW4064, induced expressions of the p62/SQSTM1 gene and protein in AML12 mouse liver cells. Because we previously reported p62/SQSTM1 as a key molecule for antioxidation and cell survival in hepatocytes, we next examined the activation of nuclear factor erythroid 2-related factor-2 (Nrf2) and induction of the antioxidant molecules by GW4064. GW4064 activated Nrf2 and subsequently induced antioxidant molecules (Nrf2, catalase, HO-1, and thioredoxin). We also examined expressions of pro-survival and cell protective molecules associated with p62/SQSTM1. Expectedly, GW4064 induced phosphorylation of Akt, expression of the anti-apoptotic molecules (Bcl-xL and Bcl-2), and reduced harmful hepatic molecules (Fas ligand and Fas). GW4064 promoted hepatocyte survival, which was cancelled by p62/SQSTM1 siRNA. These findings suggest the potential relevance of the FXR-p62/SQSTM1 pathway for the survival and protection of hepatocytes. Furthermore, GW4064 induced the expression of small heterodimer partners (SHP) and suppressed liver X receptor (LXR)-induced steatosis in hepatocytes, expecting the in vivo protective effect of FXR on liver injury especially with steatosis. In the hepatectomy model of db/db mice with fatty liver, pre-treatment by GW4064 significantly reduced post-PH liver injury (serum levels of LDH, AST & ALT and histological study) and improved steatosis. The key molecules, p62/SQSTM1, Nrf2 and SHP were upregulated in fatty liver tissue by GW4064 treatment. CONCLUSIONS:The present study is the first to demonstrate the relevance of FXR-p62/SQSTM1 and -SHP in the protection against injury of hepatocytes and post-PH liver, especially with steatosis.
journal_name
BMC Gastroenteroljournal_title
BMC gastroenterologyauthors
Haga S,Yimin,Ozaki Mdoi
10.1186/s12876-016-0568-3subject
Has Abstractpub_date
2017-01-13 00:00:00pages
9issue
1issn
1471-230Xpii
10.1186/s12876-016-0568-3journal_volume
17pub_type
杂志文章abstract:BACKGROUND:Patients with familial adenomatous polyposis (FAP) frequently undergo colectomy to reduce the 70 to 90% lifetime risk of colorectal cancer. After risk-reducing colectomy, duodenal cancer and complications from duodenal surgeries are the main cause of morbidity. Our objective was to prospectively describe the...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-018-0841-8
更新日期:2018-07-16 00:00:00
abstract:BACKGROUND:Dysphagia and feeding intolerance are common in neurologically handicapped children. The aim is to determine the etiologies of feeding intolerance in neurologically handicapped children who are intolerant of tube feedings. METHODS:Eighteen neurologically handicapped children, followed in the Tube Feeding Cl...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-4-19
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:An intravascular ultrasound catheter (IVUSc) was developed for intracardiac ultrasound to assess interventions with compelling results. However, intrahepatic vascular exploration was rarely tested and was always associated with X-ray techniques. The aim of this study was to demonstrate the feasibility to nav...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-021-01600-3
更新日期:2021-01-09 00:00:00
abstract:BACKGROUND:It is unknown whether narrow-band imaging (NBI) could be more effective than high-definition white-light endoscopy (HD-WLE) in detecting serrated lesions in patients with prior serrated lesions > 5 mm not completely fulfilling serrated polyposis syndrome (SPS) criteria. METHODS:We conducted a randomized, cr...
journal_title:BMC gastroenterology
pub_type: 杂志文章,随机对照试验
doi:10.1186/s12876-020-01257-4
更新日期:2020-04-16 00:00:00
abstract:BACKGROUND:Real-time tissue sonoelastography (EG) is a new non-invasive technique that visualizes differences in tissue strain. We evaluated the usefulness of EG in patients with ulcerative colitis (UC) by investigating the association between EG and colonoscopic findings and disease activity. METHODS:Thirty-seven UC ...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-11-29
更新日期:2011-03-31 00:00:00
abstract:BACKGROUND:Approximately 2.7 million Americans are chronically infected with hepatitis C virus (HCV). HCV patients with cirrhosis form the largest group of persons at high risk for hepatocellular carcinoma (HCC). Increased oxidative stress is regarded as a major mechanism of HCV-related liver disease progression. Defic...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-016-0432-5
更新日期:2016-02-29 00:00:00
abstract:BACKGROUND:Patients with advanced cirrhosis of the liver typically display circulatory disturbance. Haemodynamic management may be critical for avoiding and treating functional renal failure in such patients. This study investigated the effects of plasma expansion with hyperoncotic albumin solution and the role of stat...
journal_title:BMC gastroenterology
pub_type: 临床试验,杂志文章
doi:10.1186/1471-230X-8-39
更新日期:2008-08-27 00:00:00
abstract:BACKGROUND:Distal diminutive colorectal polyps are common and accurate endoscopic prediction of hyperplastic or adenomatous polyp histology could reduce procedural time, costs and potential risks associated with the resection. Within this study we assessed whether digital chromoendoscopy can accurately predict the hist...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-015-0374-3
更新日期:2015-10-22 00:00:00
abstract:BACKGROUNDS:Nonalcoholic fatty liver disease (NAFLD) has become the most common chronic liver disease in Asians. However, data on prevalence and factors associated with NAFLD in Asians are lacking. The aim of this study is to investigate the prevalence of NAFLD in Shanghai employees to assess the relationship between N...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-12-123
更新日期:2012-09-14 00:00:00
abstract:BACKGROUND:As anorexia and hypermetabolism are common in cirrhosis, leptin levels may be increased in this disease. In this study, we investigated the relation between the severity of disease and serum leptin levels in post-hepatitis cirrhosis and the role of body composition, gender and viral aetiology of cirrhosis in...
journal_title:BMC gastroenterology
pub_type: 杂志文章,多中心研究
doi:10.1186/1471-230X-4-23
更新日期:2004-09-23 00:00:00
abstract:BACKGROUND:Haemolytic uraemic syndrome is a rarely seen in adults often leading to critical illness. This case highlights how difficult it can be to establish a diagnosis and treat when a patient presents with bloody diarrhoea. CASE PRESENTATION:A 17-year-old Iraqi man presented to the emergency department with abdomi...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-019-1071-4
更新日期:2019-08-28 00:00:00
abstract:BACKGROUND:Inflammatory Bowel Diseases (IBD) affect psychological, family, social and professional dimensions of patients' life, leading to disability which is essential to quantify as part of Patient-Reported Outcomes (PROs) newly included in the targets to reach in IBD patients. Up to now, the IBD-Disability Index (I...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-020-01246-7
更新日期:2020-04-16 00:00:00
abstract:BACKGROUND:It is believed that inflammatory bowel diseases (IBD) result from an imbalance in the intestinal immune response towards the luminal microbiome. Dectin-1 is a widely expressed pattern recognition receptor that recognizes fungi and upon recognition it mediates cytokine responses and skewing of the adaptive im...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-12-33
更新日期:2012-04-16 00:00:00
abstract:BACKGROUND:Gallstone disease (GSD) is a common gastrointestinal disorder throughout the world. The authors explored the incidence of GSD in Taiwan and its condition-associated predictive factors. METHODS:The initial study cohort comprised 2386 healthy adult participants, who were voluntarily admitted to a teaching hos...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-14-83
更新日期:2014-04-28 00:00:00
abstract:BACKGROUND:Non-adherence to drug therapy is common in Inflammatory Bowel Disease (IBD). Patients' beliefs about treatment have an important influence on adherence. An in-depth understanding of this area is, therefore, important for patient-centred care. The aim of the study was to assess patients' perspectives and beli...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-7-20
更新日期:2007-06-08 00:00:00
abstract:BACKGROUND:Although many of the factors and molecules closely associated with non-alcoholic steatohepatitis (NASH) have been reported, the role of inducible nitric oxide synthase (iNOS)-derived nitric oxide (NO) on the progression of NASH remains unclear. We therefore investigated the role of iNOS-derived NO in NASH pa...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-015-0269-3
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Perforation of the colon occurring during or shortly following colonoscopy or barium enema is a rare complication of collagenous colitis (CC). "Spontaneous" perforation in CC, in which no instigating factor is identified, is even less common, with only five cases reported to date. We report herein an additio...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-016-0533-1
更新日期:2016-10-06 00:00:00
abstract:BACKGROUND:Endoscopic findings are essential in evaluating the disease activity in ulcerative colitis. The aim of this study was to evaluate how endoscopists assess individual endoscopic features of mucosal inflammation in ulcerative colitis, the inter-observer agreement, and the importance of the observers' experience...
journal_title:BMC gastroenterology
pub_type: 临床试验,杂志文章
doi:10.1186/1471-230X-4-9
更新日期:2004-05-18 00:00:00
abstract:BACKGROUND:Vedolizumab has become a standard treatment for the inflammatory bowel diseases ulcerative colitis (UC) and Crohn's disease (CD). However, there is an ongoing debate on the ideal individual treatment algorithms and means to predict treatment response are not routinely established. AIMS:We aimed to describe ...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-021-01604-z
更新日期:2021-01-22 00:00:00
abstract:BACKGROUND:The clinical course of chronic pancreatitis is still unpredictable, which relates to the lack of the availability of a clinical classification. Therefore, patient populations cannot be compared, the course and the outcome of the disease remain undetermined in the individual patient, and treatment is not stan...
journal_title:BMC gastroenterology
pub_type: 信件
doi:10.1186/1471-230X-9-93
更新日期:2009-12-14 00:00:00
abstract:BACKGROUND:The value of abdominal echography in primary care is great because it is innocuous, inexpensive, easy to perform and provides a great deal of information making this the first examination to be requested in cases of probable abdominal disease. However, too many abdominal echographies are probably requested o...
journal_title:BMC gastroenterology
pub_type: 杂志文章,多中心研究
doi:10.1186/1471-230X-10-101
更新日期:2010-09-06 00:00:00
abstract:BACKGROUND:Little data exists on the factors associated with health care seeking behaviour for primary symptoms of colorectal cancer (CRC). This study aimed to identify individual, provider and psychosocial factors associated with (i) ever seeking medical advice and (ii) seeking early medical advice for primary symptom...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-12-100
更新日期:2012-08-03 00:00:00
abstract:BACKGROUND:Oral anticoagulants like the coumarin derivatives are characterised by a particularly narrow therapeutic range. Any interfering co-medication can pose a challenge to establishing a stable anticoagulant dosage regimen and thus present a serious risk for the patient. Here we describe two cases of patients on a...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230x-1-2
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND:Signet ring cell carcinoma of the colon and rectum is rare, and most cases are detected at an advanced stage. We present a case of primary signet ring cell carcinoma detected at an early stage by magnifying endoscopy with narrow-band imaging (NBI) and crystal violet staining. CASE PRESENTATION:A 73-year-old...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-015-0317-z
更新日期:2015-07-24 00:00:00
abstract:BACKGROUND:Idiopathic portal hypertension (IPH) is a disorder of unknown etiology and is characterized clinically by portal hypertension, splenomegaly, and hypersplenism accompanied by pancytopenia. This study evaluates the pathogenic concept of the disease by a systematic review of the literature and illustrates novel...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-10-122
更新日期:2010-10-20 00:00:00
abstract:BACKGROUND:Hepatitis C virus (HCV) infection is commonly associated with a disturbance of glucose metabolism. However, there have been conflicting reports on whether the clearance of the HCV may be followed by changes of serum blood glucose and insulin resistance. The aim of the present study was to evaluate the impact...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-019-1003-3
更新日期:2019-06-13 00:00:00
abstract:BACKGROUND:Adult lactase non-persistence (LNP) is due to low lactase expression, resulting in lactose malabsorption (LM). LNP is a genetic trait, but is typically determined by LM markers including breath H2, blood glucose, and urinary galactose after a lactose tolerance test. Known validity of these markers using milk...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-020-01352-6
更新日期:2020-06-29 00:00:00
abstract:BACKGROUND:Familial adenomatous polyposis (FAP) is a rare, autosomal dominant disease clinically characterized by the early onset of many adenomatous polyps throughout the colon, which turn into colon cancer, if left untreated. In FAP patients, polyps can also occur in the upper gastrointestinal (GI) tract, especially ...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-017-0718-2
更新日期:2017-12-08 00:00:00
abstract:BACKGROUND:Colorectal cancer (CRC) is the most common cancer in Europe with a mortality rate of almost 50%. The prognosis of patients is largely determined by the clinical and pathological stage at the time of diagnosis. Population screening has been shown to reduce CRC-related mortality rate. Most screening programs w...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-12-73
更新日期:2012-06-19 00:00:00
abstract:BACKGROUND:The impact of viral subtype on the rate of sustained virological response (SVR) to antiviral therapy in patients chronically infected with hepatitis C genotype 1 subtype 1a and 1b has not been extensively investigated. The aim of this study is to determine whether the HCV genotype 1 subtypes 1a and 1b respon...
journal_title:BMC gastroenterology
pub_type: 临床试验,杂志文章
doi:10.1186/1471-230X-12-162
更新日期:2012-11-16 00:00:00