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https://www.readbyqxmd.com/read/28324838/influence-of-multi-walled-carbon-nanotubes-on-the-effects-of-roxithromycin-in-crucian-carp-carassius-auratus-in-the-presence-of-natural-organic-matter
#1
Zhenhua Yan, Guanghua Lu, Hongwei Sun, Binni Ma
Carbon nanotubes are increasingly entering the aquatic environment and may interact with other co-existing contaminants, such as antibiotics. However, whether these interactions may affect their bioavailability in aquatic organisms is the subject of considerable debate. The primary objective of this study was to assess the risks arising from the coexistence of roxithromycin (ROX) and multi-walled carbon nanotubes (MWCNTs) in waters containing natural organic matter (NOM), focusing on the distribution and bioaccumulation of ROX in crucian carp (Carassius auratus), and the related biochemical status...
March 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/28324828/evaluation-of-dna-damage-and-physiological-responses-in-nile-tilapia-oreochromis-niloticus-linnaeus-1758-exposed-to-sub-lethal-diclofenac-dcf
#2
Pramod K Pandey, Malachy N O Ajima, Kundan Kumar, Nalini Poojary, Saurav Kumar
The frequent bioaccumulation of pharmaceuticals in the aquatic ecosystem has raised a concern about their possible ecotoxicological consequences. DNA damage, haematological changes and activities of oxidative stress enzymes in Nile tilapia, Oreochromis niloticus in response to diclofenac (DCF) exposure were investigated for up to 60 days at the concentrations of 0.17, 0.34 and 0.68mgL(-1) in the fish liver. Evaluation of genotoxic effects of the drug in the liver, using single-cell gel electrophoresis, showed DNA damage on exposure at the concentrations of 0...
March 8, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28324001/cyp3a4-induction-by-rifampin-an-alternative-pathway-for-vitamin-d-inactivation-in-patients-with-cyp24a1-mutations
#3
Colin Patrick Hawkes, Dong Li, Hakon Hakonarson, Kevin E Meyers, Kenneth Thummel, Michael A Levine
Context: The P450 enzyme CYP24A1 is the principal inactivator of vitamin D metabolites. Biallelic loss-of-function mutations in CYP24A1 are associated with elevated serum levels of 1,25-dihydroxyvitamin D3 with consequent hypercalcemia and hypercalciuria, and represent the most common form of idiopathic infantile hypercalcemia (IIH). Current management strategies for this condition include a low calcium diet, reduced dietary vitamin D intake and limited sunlight exposure. CYP3A4 is a P450 enzyme that inactivates many drugs and xenobiotics and may represent an alternative pathway for inactivation of vitamin D metabolites...
March 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28319568/predictive-value-of-intraoperative-troponin-i-elevation-in-pediatric-living-donor-liver-transplant-recipients-with-biliary-atresia
#4
Mingwei Sheng, Yuanbang Lin, Yiqi Weng, Rubin Xu, Ying Sun, Wenli Yu, Hongyin Du
BACKGROUND: Pediatric living donor liver transplantation is associated with slight alteration in cardiac enzymes without ongoing acute cardiac injury, but available information about the significance of these changes is limited. The aims of this study were to analyze the link between the anomalies of intraoperative serum cardiac troponin I (cTnI) and acute lung injury during the first week after liver transplantation. METHODS: In this retrospective study, 123 children suffered from biliary atresia were enrolled...
March 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28318950/cholesteryl-ester-storage-disease-an-underdiagnosed-cause-of-cirrhosis-in-adults
#5
REVIEW
Mamta Pant, Kiyoko Oshima
Cholesteryl Ester Storage Disease (CESD), is a rare multisystem autosomal recessive disorder and belongs to the broad family of lysosomal storage disorders. It can present anytime from infancy and childhood to even adulthood. The clinical manifestations are generally severe in infants and with milder forms in adults. One of the prominent sites of involvement is liver. Due to low awareness of this condition among physicians including surgical pathologists, majority of the liver biopsies, especially from the adults are often misdiagnosed as non-alcoholic fatty liver disease/non-alcoholic steatohepatitis or cryptogenic cirrhosis...
February 9, 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28318879/evidences-for-salbutamol-metabolism-by-respiratory-and-liver-cell-lines
#6
Titpawan Nakpheng, Supreedee Songkarak, Tan Suwandecha, Rutthapol Sritharadol, Charisopon Chunhachaichana, Teerapol Srichana
This study aimed to investigate the enantiomeric biotransformation of salbutamol in the human respiratory and liver cells. The cells from the different cell growth cycles were treated with various concentrations of salbutamol sulfate. Salbutamol and its metabolites were analyzed using chiral liquid chromatography and mass spectrometry. There were no metabolites of salbutamol found in the extracellular medium, intracellular, and cell lysate of respiratory cell lines. The S/R ratios of salbutamol were found to be 0...
November 17, 2016: Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28318752/cystathionine-gamma-lyase-deficient-mice-are-protected-against-the-development-of-multiorgan-failure-and-exhibit-reduced-inflammatory-response-during-burn
#7
Akbar Ahmad, Nadiya Druzhyna, Csaba Szabo
Considering the role of H2S in critical illness, the aim of this study was to compare the outcome of burn in wild-type mice and in mice deficient in CSE, one of the principal mammalian H2S-generating enzymes. Animals were subjected to scald burn. Outcome variables included indices of organ injury, clinical chemistry parameters and plasma levels of inflammatory mediators. Plasma levels of H2S significantly increased in response to burn in wild-type mice, but remained unchanged in CSE(-/-) mice. Expression of the three H2S-producing enzymes (CSE, CBS and 3-MST) in the lung and liver, and the capacity of tissue homogenates to produce H2S, however, was not affected by burn...
March 15, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28317891/hepatic-mitochondrial-dysfunction-is-a-feature-of-glycogen-storage-disease-type-ia-gsdia
#8
Benjamin L Farah, Rohit A Sinha, Yajun Wu, Brijesh K Singh, Andrea Lim, Masahiro Hirayama, Dustin J Landau, Boon Huat Bay, Dwight D Koeberl, Paul M Yen
Glycogen storage disease type Ia (GSDIa, von Gierke disease) is the most common glycogen storage disorder. It is caused by the deficiency of glucose-6-phosphatase, an enzyme which catalyses the final step of gluconeogenesis and glycogenolysis. Clinically, GSDIa is characterized by fasting hypoglycaemia and hepatic glycogen and triglyceride overaccumulation. The latter leads to steatohepatitis, cirrhosis, and the formation of hepatic adenomas and carcinomas. Currently, little is known about the function of various organelles and their impact on metabolism in GSDIa...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317816/hemophagocytic-syndrome-secondary-to-tuberculosis-at-24-week-gestation
#9
Alexandra Arteaga Fernández, David Fernández de Velasco Pérez, M C Jiménez Fournier, J C Moreno Del Prado, B Paraíso Torras, M L Cañete Palomo
Hemophagocytic syndrome is a life-threatening disease characterized by the uncontrolled activation of macrophages, resulting in hemophagocytosis of blood cells in the bone marrow. A 20-year-old gravida at 23-week and 5-day gestation was admitted to hospital to evaluate fever up to 104°F of unknown origin, moderate cytopenia, and elevated levels of liver enzymes. Bone marrow biopsy confirmed hemophagocytic syndrome, and polymerase chain reaction came back positive for Mycobacterium tuberculosis. Supportive care and tuberculosis treatment resulted in clinical improvement...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28317620/lupus-hepatitis-and-autoimmune-hepatitis-lupoid-hepatitis
#10
REVIEW
Avinash Adiga, Kenneth Nugent
Liver dysfunction occurs in approximately 50% of patients with systemic lupus erythematosus (SLE), and patients with SLE and elevated liver enzymes can present a complicated and difficult differential diagnosis. Lupus hepatitis and autoimmune hepatitis are 2 immunologic conditions involving the liver, which can have similar clinical, laboratory and systemic presentations, leading to difficulties in diagnosis. Physicians need to be aware of these 2 hepatic diseases as diagnosis and appropriate therapy need to occur early in the disease course to prevent progression to advanced liver disease...
April 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28317482/nutraceuticals-as-an-important-part-of-combination-therapy-in-dyslipidaemia
#11
Angelo Maria Patti, Peter P Toth, Rosaria Vincenza Giglio, Maciej Banach, Marcello Noto, Dragana Nikolic, Giuseppe Montalto, Manfredi Rizzo
Several risk factors such as abnormality of lipid metabolism (e.g. high levels of low-density lipoprotein cholesterol (LDL-C), elevated triglycerides and low levels of high-density lipoprotein cholesterol (HDL-C)) play a central role in the aetiology of cardiovascular disease (CVD). Nutraceutical combination together with a cholesterol-lowering action, when associated with suitable lifestyle, should furnish an alternative to pharmacotherapy in patients reporting statin-intolerance and in subjects at low cardiovascular risk...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28317087/imaging-and-clinicopathological-features-of-nivolumab-related-cholangitis-in-patients-with-non-small-cell-lung-cancer
#12
Hisato Kawakami, Junko Tanizaki, Kaoru Tanaka, Koji Haratani, Hidetoshi Hayashi, Masayuki Takeda, Ken Kamata, Mamoru Takenaka, Masatomo Kimura, Takaaki Chikugo, Takao Sato, Masatoshi Kudo, Akihiko Ito, Kazuhiko Nakagawa
Background Nivolumab demonstrates promising efficacy for the treatment of non-small cell lung cancer and other malignancies. The clinical benefit of nivolumab, however, may be hampered by specific immune-related adverse events (irAEs), and little is known regarding nivolumab-related cholangitis. Methods A computerized search of our clinical database identified 3 metastatic non-small cell lung cancer patients with nivolumab-related cholangitis. All patients were treated with intravenous nivolumab monotherapy (3...
March 20, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28317078/role-of-selenium-from-different-sources-in-prevention-of-pulmonary-arterial-hypertension-syndrome-in-broiler-chickens
#13
A K Zamani Moghaddam, M H Mehraei Hamzekolaei, F Khajali, H Hassanpour
Pulmonary arterial hypertension (PAH) syndrome in broilers is associated with hypoxia, which prevails at high altitude. Oxidative stress is the pathogenic mechanism underlying PAH. Because selenium is key element in the structure of antioxidant enzymes, we evaluated pulmonary hypertensive responses in broiler chickens fed with diets supplemented with organic or nano-selenium. One hundred forty-four broilers (starting at 5 days old) were fed with (i) control group: birds received a standard diet; (ii) nano-selenium group: birds were fed with basal diet supplemented with nano-selenium at 0...
March 20, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28315997/trans-fatty-acids-suppress-tnf-%C3%AE-induced-inflammatory-gene-expression-in-endothelial-huvec-and-hepatocellular-carcinoma-hepg2-cells
#14
Marine S Da Silva, Pierre Julien, Jean-François Bilodeau, Olivier Barbier, Iwona Rudkowska
Trans fatty acids (TFA) intake has been linked to cardiovascular diseases and liver diseases; yet the effect of TFA on inflammation remains controversial. Accordingly, the objective of this paper was to determine the in vitro effects of TFA on inflammatory gene expression. Human umbilical vein endothelial cells (HUVEC) and human hepatocellular carcinoma (HepG2) cells were treated for 24 h with either trans-vaccenic acid (tVA), trans-palmitoleic acid (tPA) or elaidic acid (EA) at concentrations of 5-150 µM, or with a mixture of tVA and tPA (150/50 µM)...
March 18, 2017: Lipids
https://www.readbyqxmd.com/read/28315901/the-effect-of-sitagliptin-on-lipid-metabolism-of-fatty-liver-mice-and-related-mechanisms
#15
Bilin Xu, Tian Shen, Lin Chen, Juan Xia, Cuiping Zhang, Hongping Wang, Ming Yu, Tao Lei
BACKGROUND In clinics, patients with type 2 diabetes complicated with non-alcoholic fatty liver disease (NAFLD) have been shown to receive significant improvements in blood glucose levels, lipid levels, and liver function after sitagliptin treatment, although the mechanism of drug action remains poorly understood. This study investigated the possible mechanism of sitagliptin on lipid metabolism of NAFLD mice. MATERIAL AND METHODS Male C57/BL6 mice were induced for NAFLD via 16 weeks of a high-fat diet, and were treated with 15 mg/kg/day sitagliptin for 16 consecutive weeks...
March 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28315688/fullerenol-nanoparticles-prevents-doxorubicin-induced-acute-hepatotoxicity-in-rats
#16
Vesna Jacevic, Aleksandar Djordjevic, Branislava Srdjenovic, Vukosava Milic-Tores, Zoran Segrt, Viktorija Dragojevic-Simic, Kamil Kuca
Doxorubicin (DOX), commonly used antineoplastic agent, affects bone marrow, intestinal tract and heart, but it also has some hepatotoxic effects. Main mechanism of its toxicity is the production of free reactive oxygen species. Polyhidroxilated C60 fullerene derivatives, fullerenol nanoparticles (FNP), act as free radical scavengers in in vitro systems. The aim of the study was to investigate potential FNP protective role against DOX-induced hepatotoxicity in rats. Experiments were performed on adult male Wistar rats...
March 15, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28315617/dietary-fructose-augments-ethanol-induced-liver-pathology
#17
Paul G Thomes, Jennifer H Benbow, Elizabeth Brandon-Warner, Kyle J Thompson, Carl Jacobs, Terrence M Donohue, Laura W Schrum
Certain dietary components when combined with alcohol exacerbate alcohol-induced liver injury (ALI). Here, we tested whether fructose, a major ingredient of the western diet, enhances the severity of ALI. We fed mice ethanol for 8 weeks in the following Lieber-DeCarli diets: (a) Regular (contains olive oil); (b) corn oil (contains corn oil); (c) fructose (contains fructose and olive oil) and (d) corn+fructose (contains fructose and corn oil). We compared indices of metabolic function and liver pathology among the different groups...
March 6, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28315483/functional-proteomic-analysis-of-corticosteroid-pharmacodynamics-in-rat-liver-relationship-to-hepatic-stress-signaling-energy-regulation-and-drug-metabolism
#18
Vivaswath S Ayyar, Richard R Almon, Debra C DuBois, Siddharth Sukumaran, Jun Qu, William J Jusko
Corticosteroids (CS) are anti-inflammatory agents that cause extensive pharmacogenomic and proteomic changes in multiple tissues. An understanding of the proteome-wide effects of CS in liver and its relationships to altered hepatic and systemic physiology remains incomplete. Here, we report the application of a functional pharmacoproteomic approach to gain integrated insight into the complex nature of CS responses in liver in vivo. An in-depth functional analysis was performed using rich pharmacodynamic (temporal-based) proteomic data measured over 66h in rat liver following a single dose of methylprednisolone (MPL)...
March 14, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28315163/activity-of-metabolic-enzymes-and-muscle-specific-gene-expression-in-parr-and-smolts-atlantic-salmon-salmo-salar-l-of-different-age-groups
#19
Maria V Churova, Olga V Meshcheryakova, Aleksey E Veselov, Denis A Efremov, Nina N Nemova
This study was conducted to characterize the energy metabolism level and the features of muscle growth regulation during the development of Atlantic salmon (Salmo salar) inhabiting the Indera River (Kola Peninsula, Russia). The activities of aerobic and anaerobic enzymes (cytochrome c oxidase and lactate dehydrogenase) and carbohydrate metabolism enzymes (glucose-6-phosphate dehydrogenase, glycerol-3-phosphate dehydrogenase, and aldolase) were measured in muscle and liver tissue. Gene expression levels of myosin heavy chain (MyHC), myostatin (MSTN-1a), and myogenic regulatory factors (MRFs-MyoD1a, MyoD1b, MyoD1c, Myf5, myogenin) were measured in the white muscles of salmon parr of ages 0+, 1+, 2+, and 3+ and smolts of ages 2+ and 3+...
March 18, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28315162/dietary-supplementation-of-curcumin-augments-heat-stress-tolerance-through-upregulation-of-nrf-2-mediated-antioxidative-enzymes-and-hsps-in-puntius-sophore
#20
Arabinda Mahanty, Sasmita Mohanty, Bimal P Mohanty
Heat stress is one of the major environmental concerns in global warming regime and rising temperature has resulted in mass mortalities of animals including fishes. Therefore, strategies for high temperature stress tolerance and ameliorating the effects of heat stress are being looked for. In an earlier study, we reported that Nrf-2 (nuclear factor E2-related factor 2) mediated upregulation of antioxidative enzymes and heat shock proteins (Hsps) provide survivability to fish under heat stress. In this study, we have evaluated the ameliorative potential of dietary curcumin, a potential Nrf-2 inducer in heat stressed cyprinid Puntius sophore...
March 17, 2017: Fish Physiology and Biochemistry
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