53,101 results match your criteria liver damage

The effects of flavonoids, green tea polyphenols and coffee on DMBA induced LINE-1 DNA hypomethylation.

PLoS One 2021 20;16(4):e0250157. Epub 2021 Apr 20.

Department of Public Health Medicine, Medical School, University of Pécs, Pécs, Hungary.

The intake of carcinogenic and chemopreventive compounds are important nutritional factors related to the development of malignant tumorous diseases. Repetitive long interspersed element-1 (LINE-1) DNA methylation pattern plays a key role in both carcinogenesis and chemoprevention. In our present in vivo animal model, we examined LINE-1 DNA methylation pattern as potential biomarker in the liver, spleen and kidney of mice consuming green tea (Camellia sinensis) extract (catechins 80%), a chinese bayberry (Morella rubra) extract (myricetin 80%), a flavonoid extract (with added resveratrol) and coffee (Coffee arabica) extract. Read More

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Reduction-Responsive Anticancer Nanodrug Using a Full Poly(ethylene glycol) Carrier.

ACS Appl Mater Interfaces 2021 Apr 20. Epub 2021 Apr 20.

MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.

Poly(ethylene glycol) (PEG) is applied extensively in biomedical fields because of its nontoxic, nonimmunogenic, and protein resistance properties. However, the strong hydrophilicity of PEG prevents it from self-assembling into an amphiphilic micelle in water, making it a challenge to fabricate a full-PEG carrier to deliver hydrophobic anticancer drugs. Herein, a paclitaxel (PTX)-loaded nanodrug was readily prepared through self-assembly of PTX and an amphiphilic PEG derivative, which was synthesized via melt polycondensation of two PEG diols (i. Read More

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Physicochemical characterization and the hypoglycemia effects of polysaccharide isolated from Sims peel.

Food Funct 2021 Apr 20. Epub 2021 Apr 20.

College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, China.

One polysaccharide, designated as WPEP-A, was isolated from Passiflora edulis Sims peel and its hypoglycemic effects on diabetic db/db mice were evaluated. Physicochemical characterization showed that WPEP-A was composed of galactose, glucose, xylose, rhamnose, galacturonic acid and glucuronic acid with a molecular weight of 9.51 × 104 Da. Read More

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Protective effect of acute splenic irradiation in rats with traumatic brain injury.

Neuroreport 2021 Apr 15. Epub 2021 Apr 15.

Department of Emergency Cancer Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.

Objective: To explore the protective effect of acute splenic irradiation against traumatic brain injury (TBI) in rats.

Methods: A rat model of TBI was established according to Feeney's method. Splenic irradiation was performed by the reverse intensity-modulated radiation therapy (IMRT) source-axis distance (SAD) irradiation technique. Read More

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The Influence of Long-Term Dietary Intake of Titanium Dioxide Particles on Elemental Homeostasis and Tissue Structure of Mouse Organs.

J Nanosci Nanotechnol 2021 Oct;21(10):5014-5025

Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, China.

: Titanium dioxide (TiO₂), consisting of nanoparticles and sub-microparticles, were widely used as food additive and consumed by people every day, which has aroused a public safety concern. Some studies showed TiO₂ can be absorbed by intestine and then distributed to different tissues after oral intake, which is supposed to affect the content of various elements in the body whereas led to tissue damage. However, knowledge gaps still exist in the impact of TiO₂ on the disorder of elemental homeostasis. Read More

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October 2021

Damage to cardiac vasculature may be associated with breast cancer treatment-induced cardiotoxicity.

Cardiooncology 2021 Apr 19;7(1):15. Epub 2021 Apr 19.

Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.

Background: Breast cancer is the most common female cancer worldwide. Effective therapies including doxorubicin and trastuzumab have improved survival, but are associated with a substantial risk of cardiovascular disease. Mechanisms underlying cancer treatment-induced cardiotoxicity (CTC) are poorly understood and have largely focused on cardiomyocyte damage, although other cellular populations in the heart such as the cardiac endothelium, may play an important role in cardiac damage. Read More

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Notch Signaling Pathway: Find New Channel during Liver Repair and Regeneration.

Curr Med Chem 2021 Apr 19. Epub 2021 Apr 19.

Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz. Iran.

The liver is one of the significant regenerative organs in the body. Nevertheless, underlying molecular mechanisms regulating liver repair and regeneration following resection or damage remain largely unknown. The Notch signaling pathway is a profoundly evolutionarily well-conserved cell signaling system that plays mostly in multicellular organisms' development. Read More

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Systematic Review of Microthrombi in COVID-19 Autopsies.

Acta Haematol 2021 Apr 19:1-8. Epub 2021 Apr 19.

Instituto de Patologia Mejia Jimenez, Department of Pathology, Cali, Colombia.

Background: Histopathological analysis can provide additional clues in COVID-19 understanding. During the last year, autopsy reports have revealed that diffuse alveolar damage (DAD) is the most significant observed finding. The aim of this study is to review cases in the literature about COVID-19 autopsies that reported microthrombi in different organs. Read More

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Excessive ammonia inhalation causes liver damage and dysfunction by altering gene networks associated with oxidative stress and immune function.

Ecotoxicol Environ Saf 2021 Apr 16;217:112203. Epub 2021 Apr 16.

College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, People's Republic of China; Key Laboratory of Swine Facilities Engineering, Ministry of Agriculture and Rural Affairs, Harbin, People's Republic of China. Electronic address:

Ammonia (NH) is a major gaseous pollutant in livestock production and has adverse effects on production, health and welfare of animals. The liver is one of the target organs of NH, and excessive NH inhalation can induce liver damage. However, the toxicity assessment of NH on pig liver and its mechanism have not been reported yet. Read More

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Autofluorescence spectroscopy and multivariate analysis for predicting the induced damages to other organs due to liver fibrosis.

Spectrochim Acta A Mol Biomol Spectrosc 2021 Mar 24;257:119741. Epub 2021 Mar 24.

Division of Biophotonics and Imaging, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India. Electronic address:

When our liver does not work well, it can induce damage to other organs causing their dysfunction. With this background, we aim to study the effect of liver fibrosis on other organs such as heart, lungs, kidney and spleen by assessing the variations in the inherent emission property of the tissue, using fluorescence spectroscopy. Fluorescence emission spectra from excised organs of liver fibrosis induced rats were collected at excitation wavelengths 320 and 410 nm. Read More

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Ustilaginoidin D induces hepatotoxicity and behaviour aberrations in zebrafish larvae.

Toxicology 2021 Apr 16:152786. Epub 2021 Apr 16.

College of Plant Protection, Jilin Agricultural University, Changchun, 130118, China; College of Plant Protection and the Ministry of Agriculture Key Laboratory of Pest Monitoring and Green Management, China Agricultural University, Beijing, 100193, China. Electronic address:

Ustilaginoidins, a group of bis-naphtho-γ-pyrones, are one of the major mycotoxins produced by Ustilaginoidea virens. This group of bis-naphtho-γ-pyrone mycotoxins has been demonstrated to have antibacterial and immunological inhibitory activities and strong cytotoxicity to human oral epidermoid carcinoma. However, little is yet known about the toxicity of ustilaginoidins to animals or toxicity mechanisms. Read More

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Paricalcitol inhibits oxidative stress-induced cell senescence of the bile duct epithelium dependent on modulating Sirt1 pathway in cholestatic mice.

Free Radic Biol Med 2021 Apr 16. Epub 2021 Apr 16.

Department of Cell Biology, School of Medicine, Taizhou University, Taizhou, PR China. Electronic address:

Background: Clinical studies indicate that vitamin D receptor (VDR) expression is reduced in primary biliary cirrhosis patient livers. However, the mechanism by which activated VDR effect cholestatic liver injury remains unclear.

Methods: Mice were injected intraperitoneally with the VDR agonist paricalcitol or a vehicle 3 days prior to bile duct ligation (BDL) and for 5 or 28 days after surgery. Read More

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Downregulation of TGR5 (GPBAR1) in biliary epithelial cells contributes to the pathogenesis of sclerosing cholangitis.

J Hepatol 2021 Apr 16. Epub 2021 Apr 16.

Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany. Electronic address:

Background&aims: Primary sclerosing cholangitis (PSC) is characterized by chronic inflammation and progressive fibrosis of the biliary tree. The bile acid receptor TGR5 is found on biliary epithelial cells (BECs), where it promotes secretion, proliferation and tight junction integrity. Thus, we speculated that changes in TGR5-expression in BECs may contribute to PSC pathogenesis. Read More

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Extracorporeal membrane oxygenation combined with sequential blood purification in the treatment of myocardial damage and cardiac arrest caused by mushroom poisoning.

Toxicon 2021 Apr 16. Epub 2021 Apr 16.

Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Donghu District, Nanchang 330006, Jiangxi Province, China. Electronic address:

Mushroom poisoning is a common clinical problem. Severe mushroom poisoning often causes liver and kidney failure. Although severe myocardial damage is rare, the fatality rate is extremely high. Read More

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Partial Hepatectomy in Adult Zebrafish.

J Vis Exp 2021 Apr 4(170). Epub 2021 Apr 4.

Harvard Medical School; Brigham and Women's Hospital; Massachusetts General Hospital.

Liver failure is one of the leading causes of death worldwide, and mortality from chronic liver disease is rising sharply in the United States. Healthy livers are capable of regenerating from toxic damage, but in advanced liver disease, the natural ability of the liver to regenerate is impaired. Zebrafish have emerged as a powerful experimental system for studying regeneration. Read More

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Defective apoptotic cell contractility provokes sterile inflammation leading to liver damage and tumour suppression.

Elife 2021 Apr 19;10. Epub 2021 Apr 19.

Chemistry and Biology, Ryerson University, Toronto, Canada.

Apoptosis is characterized by profound morphological changes, but their physiological purpose is unknown. To characterize the role of apoptotic cell contraction, ROCK1 was rendered caspase non-cleavable (ROCK1nc) by mutating Aspartate 1113, which revealed that ROCK1 cleavage was necessary for forceful contraction and membrane blebbing. When homozygous ROCK1nc mice were treated with the liver-selective apoptotic stimulus of diethylnitrosamine, ROCK1nc mice had more profound liver damage with greater neutrophil infiltration than wild-type mice. Read More

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COVID-19 and hyperammonemia: Potential interplay between liver and brain dysfunctions.

Brain Behav Immun Health 2021 Apr 13:100257. Epub 2021 Apr 13.

Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.

Although COVID-19 affects the respiratory system, extrapulmonary manifestations frequently occur, including encephalopathy and liver damage. Here, we want to call attention to a possible connection between liver and brain dysfunctions, in which ammonia can play a role targeting astrocytes. Importantly, astrocyte dysfunction can produce future and/or long-term neurological consequences. Read More

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Novel Immune Subsets and Related Cytokines: Emerging Players in the Progression of Liver Fibrosis.

Front Med (Lausanne) 2021 1;8:604894. Epub 2021 Apr 1.

Department of Hepatology, The First Hospital of Jilin University, Jilin University, Changchun, China.

Liver fibrosis is a pathological process caused by persistent chronic injury of the liver. Kupffer cells, natural killer (NK) cells, NKT cells, and dendritic cells (DCs), which are in close contact with T and B cells, serve to bridge innate and adaptive immunity in the liver. Meanwhile, an imbalanced inflammatory response constitutes a challenge in liver disease. Read More

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Periodontal Inflammation-Triggered by Periodontal Ligament Stem Cell Pyroptosis Exacerbates Periodontitis.

Front Cell Dev Biol 2021 1;9:663037. Epub 2021 Apr 1.

Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai, China.

Periodontitis is an immune inflammatory disease that leads to progressive destruction of bone and connective tissue, accompanied by the dysfunction and even loss of periodontal ligament stem cells (PDLSCs). Pyroptosis mediated by gasdermin-D (GSDMD) participates in the pathogenesis of inflammatory diseases. However, whether pyroptosis mediates PDLSC loss, and inflammation triggered by pyroptosis is involved in the pathological progression of periodontitis remain unclear. Read More

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No Evidence for Trade-Offs Between Lifespan, Fecundity, and Basal Metabolic Rate Mediated by Liver Fatty Acid Composition in Birds.

Front Cell Dev Biol 2021 29;9:638501. Epub 2021 Mar 29.

Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czechia.

The fatty acid composition of biological membranes has been hypothesised to be a key molecular adaptation associated with the evolution of metabolic rates, ageing, and life span - the basis of the membrane pacemaker hypothesis (MPH). MPH proposes that highly unsaturated membranes enhance cellular metabolic processes while being more prone to oxidative damage, thereby increasing the rates of metabolism and ageing. MPH could, therefore, provide a mechanistic explanation for trade-offs between longevity, fecundity, and metabolic rates, predicting that short-lived species with fast metabolic rates and higher fecundity would have greater levels of membrane unsaturation. Read More

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Mutated DNA Damage Repair Pathways Are Prognostic and Chemosensitivity Markers for Resected Colorectal Cancer Liver Metastases.

Front Oncol 2021 31;11:643375. Epub 2021 Mar 31.

Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Hepatopancreatobiliary Surgery Department I, Peking University Cancer Hospital, Beijing, China.

Deficiency of the DNA damage repair (DDR) signaling pathways is potentially responsible for genetic instability and oncogenesis in tumors, including colorectal cancer. However, the correlations of mutated DDR signaling pathways to the prognosis of colorectal cancer liver metastasis (CRLM) after resection and other clinical applications have not been fully investigated. Here, to test the potential correlation of mutated DDR pathways with survival and pre-operative chemotherapy responses, tumor tissues from 146 patients with CRLM were collected for next-generation sequencing with a 620-gene panel, including 68 genes in 7 DDR pathways, and clinical data were collected accordingly. Read More

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Hepatic and renal damage by alcohol and cigarette smoking in rats.

Toxicol Res 2021 Apr 13;37(2):209-219. Epub 2020 Aug 13.

Programa de pós-graduação em Farmacologia e Terapêutica, Department of Pharmacology-ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Rua Sarmento Leite, 500/305, Porto Alegre, RS 90050-170 Brazil.

Chronic use of alcohol and tobacco cigarettes is associated to millions of deaths per year, either by direct or indirect causes. However, few studies have explored the additional risks of the combined use of these drugs. Here we assessed the effect of the combined use of alcohol and cigarette smoke on liver or kidney morphology, and on biochemical parameters in chronically treated rats. Read More

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Natural Recovery by the Liver and Other Organs after Chronic Alcohol Use.

Alcohol Res 2021 8;41(1):05. Epub 2021 Apr 8.

Department of Internal Medicine, Section of Gastroenterology, University of Nebraska Medical Center, Omaha, Nebraska.

Chronic, heavy alcohol consumption disrupts normal organ function and causes structural damage in virtually every tissue of the body. Current diagnostic terminology states that a person who drinks alcohol excessively has alcohol use disorder. The liver is especially susceptible to alcohol-induced damage. Read More

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Macrophages in Chronic Liver Failure: Diversity, Plasticity and Therapeutic Targeting.

Front Immunol 2021 2;12:661182. Epub 2021 Apr 2.

Section of Hepatology and Gastroenterology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.

Chronic liver injury results in immune-driven progressive fibrosis, with risk of cirrhosis development and impact on morbidity and mortality. Persistent liver cell damage and death causes immune cell activation and inflammation. Patients with advanced cirrhosis additionally experience pathological bacterial translocation, exposure to microbial products and chronic engagement of the immune system. Read More

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Epigallocatechin Gallate Can Protect Mice From Acute Stress Induced by LPS While Stabilizing Gut Microbes and Serum Metabolites Levels.

Front Immunol 2021 1;12:640305. Epub 2021 Apr 1.

College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, China.

Epigallocatechin gallate (EGCG) has potent biological activity as well as strong antioxidant and anti-inflammatory effects. This study aims to explore the protective effect of EGCG on LPS-induced acute injury. We randomly divided 18 mice into three groups: CON, LPS, and EGCG-LPS. Read More

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Waterfall Forest Environment Regulates Chronic Stress via the NOX4/ROS/NF-κB Signaling Pathway.

Front Neurol 2021 18;12:619728. Epub 2021 Mar 18.

Department of Infectious Diseases, Affiliated Hospital of Guizhou Medical University, Guiyang, China.

Forest therapy has been proven to have beneficial effects on people with depression and anxiety. However, it remains unknown whether the waterfall forest environment (WF) affects the physical and psychological health of patients with chronic fatigue and how the WF regulates chronic stress. Twenty-four patients with chronic fatigue were randomly divided into two groups: the WF group and the urban (U) group. Read More

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Pathological Findings in COVID-19 as a Tool to Define SARS-CoV-2 Pathogenesis. A Systematic Review.

Front Pharmacol 2021 1;12:614586. Epub 2021 Apr 1.

Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy.

The World Health Organization declared the COVID-19 pandemic in March 2020. COVID-19 still represents a worldwide health emergency, which causesa severe disease that has led to the death of many patients. The pathophysiological mechanism of SARS-CoV-2 determining the tissue damage is not clear and autopsycan be auseful tool to improve the knowledge of this infection and, thus, it can help achieve a timely diagnosis and develop an appropriate therapy. Read More

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Biomarkers of Atherosclerotic Vascular Disease in Workers Chronically Exposed to Ionizing Radiation.

Health Phys 2021 Mar 31. Epub 2021 Mar 31.

Federal State Unitary Enterprise "Southern Urals Biophysics Institute" at the Federal Medical Biological Agency of the Russian Federation, Ozyorskoe shosse 19, Ozyorsk Chelyabinsk Region, 456780 Russia.

Abstract: It is well established that cohorts of individuals exposed to ionizing radiation demonstrate increased risks of cardio- and cerebrovascular diseases. However, mechanisms of these radiation-induced diseases developing in individuals exposed to ionizing radiation remain unclear. To identify biomarkers of the atherosclerotic vessel damage in workers chronically exposed to ionizing radiation, this study considered 49 workers of the Russian nuclear production facility-the Mayak Production Association (mean age of 68. Read More

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Effect of Pioglitazone on endoplasmic reticulum stress regarding in situ perfusion rat model.

Clin Hemorheol Microcirc 2021 Apr 13. Epub 2021 Apr 13.

Department of Surgical Research and Techniques, Medical School, University of Pécs, Pécs, Hungary.

Background: Ischemia-reperfusion injury (IRI) can cause insufficient microcirculation of the transplanted organ and results in a diminished and inferior graft survival rate.

Objective: This study aimed to investigate the effect of different doses of an anti-diabetic drug, Pioglitazone (Pio), on endoplasmic reticulum stress and histopathological changes, using an in situ perfusion rat model.

Methods: Sixty male Wistar rats were used and were divided into six groups, consisting of the control group, vehicle-treated group and four Pio-treated groups (10, 20, 30 and 40 mg/kg Pio was administered). Read More

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Hepato-protective role of chemo-preventive probiotics during DMH-induced CRC in rats.

J Biochem Mol Toxicol 2021 Apr 18:e22788. Epub 2021 Apr 18.

Department of Biophysics, Panjab University, Chandigarh, India.

The aim of the study was to assess the hepatotoxicity, and therefore pharmacological safety of probiotics Lactobacillus plantarum (AdF10) and Lactobacillus rhamnosus GG (LGG) for potential use in colorectal cancer (CRC) prevention. Thirty-six female Sprague Dawley (SD) rats were divided into six groups: normal control, AdF10-treated, LGG-treated, 1,2-Dimethyl hydrazine (DMH)-treated, AdF10 + DMH-treated, and LGG + DMH-treated groups. Antioxidant enzyme activity, lipid proxidation, and liver function were assessed. Read More

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