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https://www.readbyqxmd.com/read/29763686/mice-deficient-in-aldo-keto-reductase-1a-akr1a-are-resistant-to-thioacetamide-induced-liver-injury
#1
Takujiro Homma, Takaya Shirato, Ryusuke Akihara, Sho Kobayashi, Jaeyong Lee, Ken-Ichi Yamada, Satoshi Miyata, Motoko Takahashi, Junichi Fujii
Aldehyde reductase (Akr1a) has been reported to be involved in detoxification of reactive aldehydes as well as in the synthesis of bioactive compounds such as ascorbic acid (AsA). Because Akr1a is expressed at high levels in the liver and is involved in xenobiotic metabolism, our objective was to investigate the hepato-protective role of Akr1a in a thioacetamide (TAA)-induced hepatotoxicity model using Akr1a-deficient (Akr1a-/- ) mice. Wild-type (WT) and Akr1a-/- mice were injected intraperitoneally with TAA and the extent of liver injury in the acute phase was assessed...
May 12, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29755574/branched-chain-amino-acids-in-health-and-disease-metabolism-alterations-in-blood-plasma-and-as-supplements
#2
REVIEW
Milan Holeček
Branched-chain amino acids (BCAAs; valine, leucine, and isoleucine) are essential amino acids with protein anabolic properties, which have been studied in a number of muscle wasting disorders for more than 50 years. However, until today, there is no consensus regarding their therapeutic effectiveness. In the article is demonstrated that the crucial roles in BCAA metabolism play: (i) skeletal muscle as the initial site of BCAA catabolism accompanied with the release of alanine and glutamine to the blood; (ii) activity of branched-chain keto acid dehydrogenase (BCKD); and (iii) amination of branched-chain keto acids (BCKAs) to BCAAs...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29753739/effect-of-cisplatin-on-the-clock-genes-expression-in-the-liver-heart-and-kidney
#3
Bei-Bei Cao, Dengfeng Li, Xiaoliang Xing, Yaguang Zhao, Kunyang Wu, Fang Jiang, Wei Yin, Jia-Da Li
Cisplatin is a platinum-based chemotherapy drug is widely used to treat various types of malignancies. Although the involvement of circadian clock in cisplatin metabolism and excretion has been reported, the effect of cisplatin on circadian rhythm remains unclear. In the present study, we investigated the effects of cisplatin on clock genes expression in mouse peripheral tissues. Cisplatin induced severe nephrotoxicity, as revealed by the significant increase of blood urea nitrogen and serum creatinine levels...
May 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29751159/adverse-effects-and-immune-dysfunction-in-response-to-oral-administration-of-weathered-iranian-heavy-crude-oil-in-the-rockfish-sebastes-schlegeli
#4
Eun-Hee Lee, Moonkoo Kim, Young-Sun Moon, Un Hyuk Yim, Sung Yong Ha, Chang-Bum Jeong, Jae-Seong Lee, Jee-Hyun Jung
To demonstrate the effects of weathered crude oil residue on the immune systems of resident fish, we measured the changes in toxic chemical concentrations, apoptosis, phagocytosis, metabolism, immune-related gene expression, and cell cycle arrest in livers or kidneys for up to 96 h after the weathered Iranian heavy crude oil (WIHCO) exposure by oral gavage in juvenile rockfish Sebastes schlegeli. Parent polyaromatic hydrocarbons (PAHs) in livers increased up to 5590 ng/g after 6 h exposure and then declined rapidly within 24 h...
April 24, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29748533/p53-attenuates-acetaminophen-induced-hepatotoxicity-by-regulating-drug-metabolizing-enzymes-and-transporter-expression
#5
Jiahong Sun, Yajie Wen, Yanying Zhou, Yiming Jiang, Yixin Chen, Huizheng Zhang, Lihuan Guan, Xinpeng Yao, Min Huang, Huichang Bi
Acetaminophen (APAP) overdose is the most frequent cause of drug-induced acute liver failure. Inhibition of APAP metabolic activation and promotion in APAP disposition are important to protect against APAP-induced liver injury. Tumor suppressor p53 is traditionally recognized as a surveillance molecule to preserve genome integrity. Recent studies have emerged on discovering its functions in metabolic regulation. Our previous study reported that p53 promoted bile acid disposition and alleviated cholestastic syndrome...
May 10, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29745615/-progress-in-hepatocyte-status-detection-and-its-application-in-bioartificial-liver-support-system
#6
REVIEW
Shichen Xu, Changzhe Wu, Guanghao Zhang, Cheng Zhang, Xiaolin Huo
Bioartificial liver support system (BALSS) provides a new way to treat liver failure and leaves more time for patients who are waiting for liver transplantation. It has detoxification function as well as the human liver, at the same time it can provide nutrition and improve the internal environment inside human body. Bioreactors and hepatocytes with good biological activity are the cores of BALSS which determine the treatment effect. However, in the course of prolonged treatment, the function and activity of hepatocytes might be greatly changed which could influence the efficacy...
February 1, 2018: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29734330/sustained-activation-of-detoxification-pathways-promotes-liver-carcinogenesis-in-response-to-chronic-bile-acid-mediated-damage
#7
Agnese Collino, Alberto Termanini, Paola Nicoli, Giuseppe Diaferia, Sara Polletti, Camilla Recordati, Vittoria Castiglioni, Donatella Caruso, Nico Mitro, Gioacchino Natoli, Serena Ghisletti
Chronic inflammation promotes oncogenic transformation and tumor progression. Many inflammatory agents also generate a toxic microenvironment, implying that adaptive mechanisms must be deployed for cells to survive and undergo transformation in such unfavorable contexts. A paradigmatic case is represented by cancers occurring in pediatric patients with genetic defects of hepatocyte phosphatidylcholine transporters and in the corresponding mouse model (Mdr2-/- mice), in which impaired bile salt emulsification leads to chronic hepatocyte damage and inflammation, eventually resulting in oncogenic transformation...
May 7, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29729565/acute-exposure-to-pbdes-at-an-environmentally-realistic-concentration-causes-abrupt-changes-in-the-gut-microbiota-and-host-health-of-zebrafish
#8
Lianguo Chen, Chenyan Hu, Nelson Lok-Shun Lai, Weipeng Zhang, Jianghuan Hua, Paul K S Lam, James C W Lam, Bingsheng Zhou
Contamination from lower brominated PBDEs is ubiquitous in the environments. However, their effects on gut microbiota and intestinal health have not yet been investigated. This study exposed adult zebrafish to an environmentally realistic concentration of pentaBDE mixture (DE-71) at 5.0 ng/L for 7 days, after which metagenomic sequencing of the intestinal microbiome was conducted and host physiological activities in the intestine and liver were also examined. The results showed that acute exposure to DE-71 significantly shifted the gut microbial community in a sex-specific manner...
May 2, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29729174/-substantiation-of-complex-intensive-treatment-of-hepatic-failure-complicated-by-encephalopathy
#9
Mikhaylo M Ivachevsky, Vitalina V Ivachevska
OBJECTIVE: Introduction: Thesis is devoted to the optimization of complex intensive therapy of hepatic insufficiency, complicated by encephalopathy. The aim: Optimization of treatment efficacy in patients with hepatic insufficiency complicated by encephalopathy. PATIENTS AND METHODS: Materials and methods: The results of complex examination and treatment of 73 patients with hepatic insufficiency have been studied and analyzed in this work. The study included patients who had been hospitalized with liver encephalopathy, which developed on the background of hepatic failure, cirrhosis of the liver in particular...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29724872/diet-and-lifestyle-recommendations-for-the-treatment-of-chronic-cough-and-chronic-disease
#10
Nathaniel Bergman, David S Riley, Michelle Beidelschies
Chronic cough, possibly due to toxicant exposure, may be improved by using a low-risk nutrition-centred strategy. A 71-year-old man experiencing chronic cough for the past 25 years presented to the Cleveland Clinic. In recent years, the patient's cough had increased in frequency and intensity despite pulmonary interventions. The patient's social history revealed exposures as a foundry worker to dimethylethylamine and triethylamine two known respiratory irritants. The patient was placed on a nutrition programme (nutrient dense, low glycaemic index and anti-inflammatory), encouraged to use a sauna each day and placed on nutraceutical supplementation that supports liver detoxification, digestive health and inflammation reduction...
May 2, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29723988/dietary-%C3%AE-mangostin-provides-protective-effects-against-acetaminophen-induced-hepatotoxicity-in-mice-via-akt-mtor-mediated-inhibition-of-autophagy-and-apoptosis
#11
Xiao-Tong Yan, Yin-Shi Sun, Shen Ren, Li-Chun Zhao, Wen-Cong Liu, Chen Chen, Zi Wang, Wei Li
Acetaminophen overdose-induced hepatotoxicity is the most common cause of acute liver failure in many countries. Previously, alpha-mangostin (α-MG) has been confirmed to exert protective effects on a variety of liver injuries, but the protective effect on acetaminophen-induced acute liver injury (ALI) remains largely unknown. This work investigated the regulatory effect and underlying cellular mechanisms of α-MG action to attenuate acetaminophen-induced hepatotoxicity in mice. The increased serum aminotransferase levels and glutathione (GSH) content and reduced malondialdehyde (MDA) demonstrated the protective effect of α-MG against acetaminophen-induced hepatotoxicity...
May 1, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29715276/comparative-analysis-of-distinctive-transcriptome-profiles-with-biochemical-evidence-in-bisphenol-s-and-benzo-a-pyrene-exposed-liver-tissues-of-the-olive-flounder-paralichthys-olivaceus
#12
Jee-Hyun Jung, Young-Sun Moon, Bo-Mi Kim, Young-Mi Lee, Moonkoo Kim, Jae-Sung Rhee
Flounder is a promising model species for environmental monitoring of coastal regions. To assess the usefulness of liver transcriptome profiling, juvenile olive flounder Paralichthys olivaceus were exposed to two pollutants, bisphenol S (BPS) and benzo[a]pyrene (BaP), which have different chemical characteristics and have distinct modes of metabolic action in teleost. Six hours after intraperitoneal injection with BPS (50 mg/kg bw) or BaP (20 mg/kg bw), liver transcriptomes were analyzed using the Illumina Hiseq 3000 platform...
2018: PloS One
https://www.readbyqxmd.com/read/29692738/liver-transcriptome-and-mirna-analysis-of-silver-carp-hypophthalmichthys-molitrix-intraperitoneally-injected-with-microcystin-lr
#13
Xiancheng Qu, Menghong Hu, Yueyong Shang, Lisha Pan, Peixuan Jia, Chunxue Fu, Qigen Liu, Youji Wang
Next-generation sequencing was used to analyze the effects of toxic microcystin-LR (MC-LR) on silver carp ( Hypophthalmichthys molitrix ). Silver carps were intraperitoneally injected with MC-LR, and RNA-seq and miRNA-seq in the liver were analyzed at 0.25, 0.5, and 1 h. The expression of glutathione S-transferase (GST), which acts as a marker gene for MC-LR, was tested to determine the earliest time point at which GST transcription was initiated in the liver tissues of the MC-LR-treated silver carps. Hepatic RNA-seq/miRNA-seq analysis and data integration analysis were conducted with reference to the identified time point...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29660445/development-of-a-new-tool-for-the-long-term-in-vitro-ecotoxicity-testing-of-nanomaterials-using-a-rainbow-trout-cell-line-rtl-w1
#14
L Galbis-Martínez, M L Fernández-Cruz, L Alte, A Valdehita, I Rucandio, J M Navas
The current wide use of manufactured nanomaterials (MNs) is leading to the release of nanoparticles (NPs) to water bodies. Aquatic organisms, including fish, are exposed to low concentrations of NPs for long periods of time being necessary to develop laboratory toxicity tests reflecting realistic conditions. Additionally, today there is a demand of in vitro assays respecting the 3Rs principle. Thus, the main aim of this work was to stablish an in vitro tool for the assessment of long-term NPs ecotoxicity. Considering the key role of liver in detoxification, a rainbow trout liver cell line, RTL-W1, was used...
April 13, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29652104/the-influence-of-lead-nanoparticles-on-the-morpho-functional-changes-of-rat-liver-during-the-postexposure-period
#15
Vasyl Aleksiichuk, Sergiy Omelchuk, Liudmyla Sokurenko, Rostyslav Kaminsky, Oleksandr Kovalchuk, Yuri Chaikovsky
Lead as any heavy metals may be found in soil, water, air, and is used in everyday life. Once in the body, it causes toxic effect, making the liver, which is one of the main organs of detoxification, suffer. Recently, the study of the action of not only ionic forms of lead, but also its nanoparticles, has become topical. The study aims at determining changes in the liver of rats and biochemical changes in their blood both at late term of exposure to nanoparticles of lead compounds and in the post-exposure period...
April 13, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29651749/medium-chain-triglycerides-supplement-therapy-with-a-low-carbohydrate-formula-can-supply-energy-and-enhance-ammonia-detoxification-in-the-hepatocytes-of-patients-with-adult-onset-type-ii-citrullinemia
#16
Kiyoshi Hayasaka, Chikahiko Numakura, Mitsunori Yamakawa, Tetsuo Mitsui, Hisayoshi Watanabe, Hiroaki Haga, Masahide Yazaki, Hiromasa Ohira, Yasuo Ochiai, Toshiyuki Tahara, Tamio Nakahara, Noriyo Yamashiki, Takahiro Nakayama, Takashi Kon, Hiroshi Mitsubuchi, Hiroshi Yoshida
Citrin, encoded by SLC25A13, constitutes the malate-aspartate shuttle, the main NADH-shuttle in the liver. Citrin deficiency causes neonatal intrahepatic cholestasis (NICCD) and adult-onset type II citrullinemia (CTLN2). Citrin deficiency is predicted to impair hepatic glycolysis and de novo lipogenesis, resulting in hepatic energy deficit. Secondary decrease in hepatic argininosuccinate synthetase (ASS1) expression has been considered a cause of hyperammonemia in CTLN2. We previously reported that medium-chain triglyceride (MCT) supplement therapy with a low-carbohydrate formula was effective in CTLN2 to prevent a relapse of hyperammonemic encephalopathy...
April 12, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29621907/does-high-dose-benzodiazepine-abuse-really-produce-liver-toxicity-results-from-a-series-of-201-benzodiazepine-monoabusers
#17
Fabio Lugoboni, Antonio Mirijello, Laura Morbioli, Elena Arzenton, Roberto Leone, Marco Faccini, Rebecca Casari, Salvatore De Cosmo, Antonio Gasbarrini, Giovanni Addolorato
BACKGROUND: Several side-effects related to prolonged benzodiazepines (BZD) use have been reported. Given the primary role of liver in BZD metabolism, toxicity related to prolonged high-dose BZD use could be conceivable. No data are available on the long-term impact of high-dose BZD use on liver. RESEARCH DESIGN AND METHODS: A total of 201 BZD mono-abusers admitted to an Addiction Unit for detoxification were evaluated. Liver enzymes were evaluated at admission, before starting any treatment...
April 6, 2018: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/29604618/an-open-prospective-pilot-study-of-a-herbal-combination-relief-as-a-supportive-dietetic-measure-during-alcohol-withdrawal
#18
Kenza Mansoor, Fadi Qadan, Andreas Hinum, Caroline Schneider, Klaus Hechenbichler, Mathias Schmidt, Georg Linsinger, Khalid Matalka
OBJECTIVE: A herbal combination (saffron extract, passion flower herb extract, cocoa seed extract, radish extract and black cumin extract) called "Relief" was designed as a supportive therapy of alcohol withdrawal syndrome (AWS). This combination was based on the scientific evidence of each constituent effect on AWS-like symptoms. In addition, our preclinical studies have shown the effectiveness of Relief on AWS detoxification. The rationale of the study was to document whether the oral intake of the designed content of Relief could have a positive effect on the course of alcohol detoxification by reducing some of the AWS in hospitalized patients...
March 1, 2018: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/29604537/chronic-exposure-to-low-environmental-concentrations-and-legal-aquaculture-doses-of-antibiotics-cause-systemic-adverse-effects-in-nile-tilapia-and-provoke-differential-human-health-risk
#19
Samwel M Limbu, Li Zhou, Sheng-Xiang Sun, Mei-Ling Zhang, Zhen-Yu Du
BACKGROUND: Antibiotics used globally to treat human and animal diseases exist ubiquitously in the environment at low doses because of misuse, overdose and poor absorption after ingestion, coupled with their high-water solubility and degradation resistance. However, the systemic chronic effects of exposure to low environmental concentrations of antibiotics (LECAs) and legal aquaculture doses of antibiotics (LADAs) in fish and their human health risk are currently unknown. OBJECTIVE: To investigate the in vivo chronic effects of exposure to LECAs and LADAs using oxytetracycline (OTC) and sulfamethoxazole (SMZ) in Nile tilapia (Oreochromis niloticus) and their human health risk...
March 27, 2018: Environment International
https://www.readbyqxmd.com/read/29582627/adh1b-aldh2-gstm1-and-gstt1-gene-polymorphic-frequencies-among-alcoholics-and-controls-in-the-arcadian-population-of-central-india
#20
Abdul Anvesh Mansoori, Subodh Kumar Jain
Background: Epidemiological research has highlighted the global burden of primary liver cancer cases due to alcohol consumption, even in a low consumption country like India. Alcohol detoxification is governed by ADH1B, ALDH2, GSTM1 and GSTT1 genes that encode functional enzymes which are coordinated with each other to remove highly toxic metabolites i.e. acetaldehyde as well as reactive oxygen species generated through detoxification processes. Some communities in the population appears to be at greater risk for development of the liver cancer due to genetic predispositions...
March 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
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