Abstract:
:BACKGROUND Recent studies have suggested that hepatocyte senescence could contribute to hepatic steatosis and its progression in nonalcoholic fatty liver disease (NAFLD). However, the underlying mechanism causing hepatocyte senescence in this pathological condition is still unclear. A thorough understanding of the mechanism could provide a new target for therapeutic intervention. The purpose of this study was to investigate the role of p66shc in hepatocyte senescence and hepatocyte damage in NAFLD progression. MATERIAL AND METHODS We examined the expression levels of hepatic p66shc and senescence markers in rats and humans with NAFLD, and we assessed the effect of p66shc knockdown or overexpression on senescence and steatosis in human liver cells. RESULTS In this study, we showed that increased hepatic p66shc expression was consistent with upregulated expression of the following senescence markers in NAFLD rats: heterochromatin protein-1-beta (HP1ß), p16, p21, and p53. Furthermore, senescence and steatosis could be induced in hepatoblastoma cell line (HepG2) cells when cells were stimulated with a low concentration of H₂O₂, and this effect was significantly alleviated by knockdown of p66shc. However, overexpression of p66shc could promote senescence and steatosis in L02 cells. Finally, increased hepatic p66shc protein levels correlated with enhanced expression of the senescence marker p21 and mirrored the degree of disease severity in NAFLD patients. CONCLUSIONS Our findings indicated that the increase in hepatocyte senescence and steatosis in NAFLD may be caused by the upregulation of p66shc expression, implying that strategies for p66shc-mediated regulation of hepatocyte senescence may provide new therapeutic tools for NAFLD.
journal_name
Med Sci Monitjournal_title
Medical science monitor : international medical journal of experimental and clinical researchauthors
Zhang J,Li Y,Wang B,Luo Y,Shi J,Zhao Bdoi
10.12659/MSM.921887subject
Has Abstractpub_date
2020-03-19 00:00:00pages
e921887eissn
1234-1010issn
1643-3750pii
921887journal_volume
26pub_type
杂志文章abstract:BACKGROUND:Invasive fungal infections due to Candida species constitute an increasing clinical problem. There are no guidelines for the management of candidemia in children undergoing surgical procedures for congenital heart defects (CHD). The aim of the study was to draw attention to the problem of candidemia in child...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:10.12659/msm.881751
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND:The fungus C. albicans is among the leading agents causing death in immunocompromised patients. Most hospitals rely on conventional morphological techniques such as the germ-tube assay and the API system for correct identification. This technique is subjective and hence error prone. Recently, more and more m...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2007-05-01 00:00:00
abstract::Alagille syndrome is a rare, autosomal, complex, dominant disorder associated with dysfunction of the liver, heart, skeleton, and eyes, as well as characteristic facial appearance. It is associated with the defect in component of the Notch signalling pathway. Here, we review the main features of Alagille syndrome with...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:10.12659/MSM.890577
更新日期:2014-03-24 00:00:00
abstract:BACKGROUND:Xeroderma pigmentosum group F (XPF) is an important participant in the nucleotide excision repair process. This study aimed to investigate the expression of DNA repair gene xeroderma pigmentosum group F (XPF) in bladder cancer and its clinical significance. MATERIAL/METHODS:Total RNA and protein were extrac...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.882618
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:The objective of the present study is to compare the frequency and nature of expected 'whiplash' symptoms in Greece [a country where the chronic whiplash syndrome is rare or unknown] with that in Canada. MATERIAL/METHODS:A symptom checklist was administered to 2 subject groups selected from local companies ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:The 47,XXX karyotype is a rare sex chromosome anomaly. This karyotype is usually not associated with a characteristic physical phenotype. CASE REPORT:In presented case a 47 triple X women with pituitary tumor and premature ovarian failure is identified. Diagnosis of a 47,XXX individual remains difficult bec...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract::BACKGROUND The function of long non-coding RNA (lncRNA) BMP/OP-responsive gene (BORG) has only been studied in breast cancer. We analyzed the role of BORG in colorectal cancer (CRC). MATERIAL AND METHODS BORG in CRC tissues and non-cancer tissues from 66 CRC patients was detected by performing quantitative reverse-tra...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.919103
更新日期:2020-01-15 00:00:00
abstract:BACKGROUND:Myelodysplastic syndromes are clonal disorders of stem cells, characterized by heterogeneous clinical presentation. Hematopoiesis is ineffective, characterized by abnormal differentiation, maturation and survival of hematopoietic cells. MATERIAL AND METHODS:The examinations were conducted in the Hematology ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.890978
更新日期:2014-09-13 00:00:00
abstract::BACKGROUND Insulin resistance (IR) and inflammation are associated with increased risk of complications in chronic kidney disease (CKD) patients. However, the relationship between IR and the important proinflammatory interleukin-1β (IL-1β) is unclear in CKD patients. MATERIAL AND METHODS We conducted a cross-sectional...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.906269
更新日期:2018-02-13 00:00:00
abstract::BACKGROUND Chronic obstructive pulmonary disease (COPD), a general airway disease, is featured by progressive and chronic immunoreaction in the lung. Increasing evidences have showed that cigarette smoking is the main reason in the COPD progression, and human pulmonary microvascular endothelial cell (HPMEC) apoptosis ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.920793
更新日期:2020-03-23 00:00:00
abstract::BACKGROUND Age-related macular degeneration (AMD) is the leading cause of blindness in people aged 65 years and older in developed countries. The pathogenesis of AMD has been linked to mechanisms involving inflammation, oxidative stress, and basal laminar deposit formation between retinal pigment epithelium (RPE) cell...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.905311
更新日期:2018-01-10 00:00:00
abstract::BACKGROUND Following total knee arthroplasty (TKA), postoperative patient rehabilitation is important to achieve the optimal level of knee function and mobility. Clinical research in this field is growing, and bibliometric analysis of publication may provide direction for research clinicians and raise awareness of res...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.920795
更新日期:2020-03-17 00:00:00
abstract::BACKGROUND Calcium phosphate cement (CPC) has been applied as a biodegradable antibiotic carrier in osteomyelitis. However, the drug delivery, antibacterial efficacy, and degradation rate of CPC are insufficient and require further improvement in clinical application. MATERIAL AND METHODS Vancomycin-loaded CPC columns...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.908776
更新日期:2018-02-08 00:00:00
abstract:BACKGROUND:Tuberculosis (TB) is a chronic bacterial infection caused by M. Tuberculosis. Studies of antibody response in TB have focussed mainly on their usefulness as a diagnostic serological tool, with little attention given to analysis of antibodies at the isotype and subclass level in relation to disease pathogenes...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2005-12-01 00:00:00
abstract::BACKGROUND Cancer-associated fibroblasts (CAFs) are functionally and structurally essential for tumor progression. There are 3 main origins of CAFs: mesenchymal stem cells (MSCs), epithelial-to-mesenchymal (EMT) transition cells, and tissue-resident cells. Pericytes retain characteristics of progenitor cells and can d...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.906641
更新日期:2018-04-18 00:00:00
abstract::BACKGROUND Alzheimer disease (AD) is a significant health issue for the elderly, and there are at present no clinically effective anti-AD agents. Prevention of Aß-induced neurotoxicity is proposed as a possible modality for treatment of AD. miR-33 has been proven to promote Aß secretion and impair Aß clearance in neur...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.921026
更新日期:2020-03-02 00:00:00
abstract::The relevance, structure, focus, form, and content of modern clinical case reporting and case series research may be seen and understood only in the context of evaluation in medicine and surgery today. The benefits and effectiveness of surgery remain at the core of evaluation in surgery. Surgical errors evaluation is ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:
更新日期:2008-09-01 00:00:00
abstract::BACKGROUND Nimotuzumab is an anti-EGFR monoclonal antibody which has been widely used in cancer treatment. However, the safety and efficacy of nimotuzumab combined with chemotherapy in locally advanced or metastatic esophageal cancer patients remain unclear. MATERIAL AND METHODS To address this open question, we colle...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,随机对照试验
doi:10.12659/msm.902645
更新日期:2017-01-24 00:00:00
abstract::BACKGROUND We scrutinized the feasibility of apoptosis induction in blood cancer cells by means of low-intensity ultrasound and the proteasome inhibitor bortezomib (Velcade). MATERIAL AND METHODS Human leukemic monocyte lymphoma U937 cells were subjected to ultrasound in the presence of bortezomib and the echo contras...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.898323
更新日期:2016-12-22 00:00:00
abstract:BACKGROUND:Obstructive sleep apnea syndrome (OSAS) is characterized by repetitive collapse of the upper airway during sleep. Red blood cell distribution width (RDW) increases platelet activation and has been reported as an independent predictor of adverse outcomes in the general population and is believed to be associa...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.891001
更新日期:2014-11-07 00:00:00
abstract::Selective COX-2 inhibitors increase the risk of myocardial infarction and stroke that is attributed to their ability to inhibit prostacyclin (PGI2), lipoxins, resolvins, and endothelial nitric oxide (eNO) but not platelet COX-1 derived thromboxane A2 (TXA2). In contrast, aspirin blocks both COX-1 and COX-2 enzymes tha...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,评审
doi:
更新日期:2005-07-01 00:00:00
abstract::BACKGROUND Parkinson's disease (PD) is a common age-related neurodegenerative disorder, but effective therapeutic agents for PD remain largely limited. MATERIAL AND METHODS In the present study, we evaluated the beneficial effects and underlying mechanisms of punicalagin (PN) in human neuroblastoma SH-SY5Y cells treat...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.909969
更新日期:2018-08-25 00:00:00
abstract::BACKGROUND In recent years, emerging evidence has suggested that ulcerative colitis occurs as a consequence of an imbalance between oxidative stress and antioxidant capacity. The objective of this study was to investigate whether serum total bilirubin and serum uric acid levels were associated with ulcerative colitis....
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.909692
更新日期:2018-09-09 00:00:00
abstract:BACKGROUND:The aim was to assess the effect of trimetazidine (TMZ) on mitochondrial alterations induced in a canine model of brief, repeated episodes of ischemia. MATERIAL/METHODS:Twelve crossbred dogs were analyzed, after double-blind randomization, to a 7-day treatment with either TMZ or placebo. Twenty brief, compl...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:
更新日期:2005-06-01 00:00:00
abstract::BACKGROUND This study investigated the prevalence and severity of low back pain (LBP), caesarean section (C-section) rate, and the anesthesia approaches among lumbar scoliosis patients undergoing anterior correction surgery, and compared them with a healthy control cohort. MATERIAL AND METHODS The inclusion criteria f...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.926960
更新日期:2020-10-17 00:00:00
abstract::BACKGROUND The myosin heavy chain 10 or MYH10 gene encodes non-muscle myosin II B (NM IIB), and is involved in tumor cell migration, invasion, extracellular matrix (ECM) production, and epithelial-mesenchymal transition (EMT). This study aimed to investigate the effects of the MYH10 gene on normal human glial cells an...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.911523
更新日期:2018-12-15 00:00:00
abstract::BACKGROUND The aim of this study was to assess the effect of combined use of Astragaloside IV(AsIV) and atorvastatin (AV) on the expression of PPAR-γ and inflammation-associated cytokines in atherosclerosis rats. MATERIAL AND METHODS High-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), and low-density...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.908480
更新日期:2018-09-07 00:00:00
abstract::BACKGROUND Liver cancer is one of the most common malignancies around the world and one of the major causes of cancer related mortality. The objective of this study was to evaluate the anticancer effect of the natural compound psilostachyin-A on 5-fluorouracil-resistant human liver carcinoma cells and its effects on a...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/MSM.916635
更新日期:2019-09-07 00:00:00
abstract:BACKGROUND:Although many epidemiology studies have investigated the methylenetetrahydrofolate reductase (MTHFR) gene polymorphisms and their associations with lung cancer (LC), definite conclusions cannot be drawn. To clarify the effects of MTHFR polymorphisms on the risk of LC, we performed a meta-analysis in Chinese ...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章,meta分析
doi:10.12659/MSM.892050
更新日期:2014-12-29 00:00:00
abstract:BACKGROUND:Acute retinal necrosis (ARN) is characterized by the triad of acute vitritis, peripheral necrotizing retinitis and vasculitis. CASE REPORT:We report a case of 54-year-old woman with bilateral acute retinal necrosis associated with neuroinfection. Her past medical history included renal transplantation, hype...
journal_title:Medical science monitor : international medical journal of experimental and clinical research
pub_type: 杂志文章
doi:10.12659/msm.881890
更新日期:2011-08-01 00:00:00